Gates Corporation Powergrip Belt Drives Gt2 Users Manual PowerGrip® GT®2 Drive Design

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Drive Design Manual

Racehorse
®

®

PowerGrip GT 2 Belt Drives
For more power at less
cost in high-speed
applications.

THE DRIVING FORCE

IN

POWER TRANSMISSION

Table of Contents
Description

Page
®

Introduction to PowerGrip Belt Drives . . . . . . . . . 2-7
PowerGrip® Belt Drive Selection Procedure . . . . . . 8-9
High Speed Drive Survey
and Energy Savings Worksheet . . . . . . . . 10
PowerGrip® GT2® Belt Pitch Selection Guide. . . 11

Description

Page

Belt Drive Tensioners . . . . . . . . . . . . . . . . . 125
PowerGrip GT2 Idler Sprockets . . . . . . . . . . . . 125
Sprocket Specification Tables . . . . . . . . 126-129
Engineering Data . . . . . . . . . . . . . . . . . . . 130
Section I—Application Design Considerations . . 130

PowerGrip® Timing Belt Pitch Selection Guide . . 11

1.

Gear Motors/Speed Reducer Drives . . . 130

NEMA Minimum Recommended
Sprocket Outside Diameters . . . . . . . . . . 12
PowerGrip GT2 Belt Drives . . . . . . . . . . . . . . . 13
Stock Lengths and Widths. . . . . . . . . . . . . 14

2.

Electric Motor Dimensions . . . . . . . . 131

3.

Minimum Recommended Sprocket
Diameters for General Purpose
Electric Motors . . . . . . . . . . . . . . 132

Basic PowerGrip Service Factors . . . . . . . . . 15

4.

High Driven Inertia . . . . . . . . . . . . 132

Belt Drive Selection Tables

5.

Air Moving Drives . . . . . . . . . . . . 132

6.

Linear Motion Drives . . . . . . . . . . . 133

7.

High Performance Vehicle Applications . 133

8.

Belt Drive Registration . . . . . . . . . . 133

9.

Belt Drive Noise . . . . . . . . . . . . . 134

5mm Pitch Belts . . . . . . . . . . . . . . 16-29
8mm Pitch Belts . . . . . . . . . . . . . . 30-35
14mm Pitch Belts . . . . . . . . . . . . . 36-43
Power Rating Tables
5mm Pitch Belts . . . . . . . . . . . . . . 44-45
8mm Pitch Belts . . . . . . . . . . . . . . 46-48
14mm Pitch Belts . . . . . . . . . . . . . 49-51
Drive Selection Tables . . . . . . . . . . . . . 52-55
Power Rating Tables
20mm Pitch Belts . . . . . . . . . . . . . 56-58
PowerGrip Timing Belt Drives. . . . . . . . . . . . . . 59
Stock Lengths and Widths. . . . . . . . . . . . . 60
Drive Selection Tables
XL, 0.200″ Pitch Belts . . . . . . . . . . . 61-64
L, 0.375″ Pitch Belts . . . . . . . . . . . . 65-70
H, 0.500″ Pitch Belts . . . . . . . . . . . . 71-74
Horsepower Rating Tables
XL, 0.200″ Pitch Belts . . . . .
L, 0.375″ Pitch Belts . . . . . .
H, 0.500″ Pitch Belts . . . . . .
Long Length Belting . . . . . . . . . . .
PowerGrip Twin Power Belts . . . . . .
Drive Selection Procedure . . . . .
PowerGrip GT2 Sprocket Specifications.
Sprocket Specifications Tables

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75-76
77-79
80-84
85-94
95-97
98-99
. 100

11. Fixed (non-adjustable) Center Distance . 134
12. Use of Idlers . . . . . . . . . . . . . . . 135
13. Minimum Belt Wrap and
Tooth Engagement . . . . . . . . . . . . 135
14. Adverse Operation Conditions . . . . . . 136
Section II—Engineering Design Considerations . 136
1.

Belt Storage and Handling . . . . . . . . 136

2.

Center Distance and Belt Length. . . . . 136

3.

Tooth Profiles . . . . . . . . . . . . . . 137

4.

Static Conductivity . . . . . . . . . . . . 137

5.

Sprocket Diameter—Speed . . . . . . . 138

6.

Efficiency . . . . . . . . . . . . . . . . . 138

7.

Belt Tolerances. . . . . . . . . . . . . . 139

8.

Belt Installation Tension . . . . . . . 139-140

9.

Center Distance Allowances
for Installation and Testing . . . . . . . . 141

10. Drive Alignment . . . . . . . . . . . . . 141
11. Belt Installation . . . . . . . . . . . . . . 142

5mm Pitch Sprockets . . . . . . . . . . 101-102
8mm Pitch Sprockets . . . . . . . . . . 103-106
14mm Pitch Sprockets . . . . . . . . . 107-111
PowerGrip HTD® Sprocket Specifications . . . . . . . 112
20mm Pitch Sprockets . . . . . . . . . 113-114
PowerGrip Timing Belt Pulleys . . . . . . . . . . . . 115
Sprocket Specifications . . . . . . . . . . . 116-118
Taper-Lock Bushings . . . . . . . . . . . . . . . . . 119
QD Bushings. . . . . . . . . . . . . . . . . . . . . . 120
Bushing and Keyseat Information. . . . . . . . . 121-122
Taper-Lock Type Sprocket Installation
and Removal . . . . . . . . . . . . . . . . . . . . 123
QD Type Sprocket Installation
and Removal . . . . . . . . . . . . . . . . . . . . 124
Copyright 2000
The Gates Rubber Company
Denver, Colorado 80217

10. Use of Flanged Sprockets . . . . . . . . 134

R

12. Belt Pull Calculations. . . . . . . . . . . 142
13. Bearing/Shaft Load Calculations . . . . . 142
14. Self-Generated Tension . . . . . . . . . 143
Technical Data
Made-To-Order (MTO) PowerGrip Belts . . . . . 144
Trouble Shooting . . . . . . . . . . . . . . 145-146
Standard Calculations . . . . . . . . . . . . . . 147
Useful Formulas and Calculations . . . . . 148-149
Synchrounous Belt Product Design Catalogs . . . . . 150
Synchronous Belt Standard Product Line Listing . 150-164
Application Examples . . . . . . . . . . . . . . . 165-168

Printed in U.S. of America

Low speed. High speed. And any speed in between.
Gates has your total synchronous belt drive system solution!
Synchronous belt drives are
being used more extensively than
ever for the transfer of power from
one shaft to another, multiplication
of torque, speed reduction or
increase, and synchronization
of shaft operations.

®

®

PowerGrip GT 2
The Racehorse. This is the performance choice for a wide
variety of high-speed (above 500 rpm) drive applications.
PowerGrip GT2 will deliver more power at a lower overall
cost than any other rubber synchronous belt
drive system available.

Gates, the world’s recognized
leader in synchronous belt
technology, continues to meet all
your needs for synchronous belts,
sprockets and bushings across
the broadest range of industry
applications. Choose from a full
line of quality products featuring
leading-edge technologies
that deliver the advantages
you’re looking for:
●
●
●
●
●
●
●
●
●

Reduced downtime
Reduced over-all drive cost
Reduced drive package size
Increased component life
Increased performance
Energy savings
Reduced acquisition costs
Reduced transaction costs
Increased drive design options

New, improved
synchronous belt lines.
The latest innovations in Gates
synchronous drive systems are two
redesigned and reengineered belt
and sprocket lines. They are the
clear winners in overall cost, drive
selection options and performance
when compared to any other belt
drive products on the market today.

®

®

Poly Chain GT 2
The Workhorse. This is the optimal choice in meeting your
needs for low-speed (below 500 rpm), high-torque drive applications.
The powerful Poly Chain GT2 polyurethane belt drive system will
outperform roller chain drives and any rubber belt drive system
on the market today, delivering the lowest-cost belt drive
system available for low-speed, high-torque applications.

And we can prove it!

Taper -Lock®
sprockets & bushings.
Poly Chain GT2 and PowerGrip GT2
belt drive systems feature TaperLock bushings. Advantages of
the Taper-Lock system include:

Made-to-order sprockets.
Gates Made-to-Order (MTO)
Metal Department supports
synchronous MTO sprockets with
90% of Requests For Quote (RFQ)
provided within 48 hours and 84%
of quotes provided within 24
hours. Quoted delivery dates
are met at a 97% rate and most
deliveries are made within four
weeks. Call 800-709-6001
for more information.

Gates Compass® CD-ROM:
selection, maintenance,
and design tool.

●
●
●

●
●

●

●

●

Industry-proven robustness
True running, concentric
Extensive use in
roller chain sprockets
Easy installation and removal
Allows compact
sprocket hub designs
Short length-thru-bore
dimensions
Flush mount with
no protruding hubs
Installs with less axial
sprocket movement than
other bushing systems

The Gates Compass CD-ROM
is a powerful tool offering a
variety of useful information and
features. It makes choosing the
right drive system fast and easy.
Compass contains Design Flex™ II,
Design View™ and Design OHL™ for
invaluable assistance in product
selection, drive design, energy savings calculations, installation and
system cost savings. The CD also
contains eight instructional videos
covering topics such as belt drive

Design OHL™

▲

®Taper-Lock is a registered trademark
of the Reliance Electric Corporation.

A partnership commitment.
To ensure that you get the
synchronous drive systems
that are right for your applications,
Gates provides the industry’s
leading support program and the
largest distributor network. You
get local inventory availability and
a single source for all your needs.
You also get access to Gates
Product Application Engineering
Support for unmatched design and
problem-solving expertise in every
aspect of synchronous drive operation. You’re backed by the industry’s largest manufacturer’s field
sales force, voted number one in
a recent Selling Power magazine
survey. Your Gates representatives
are experts in the products they
market and provide a variety of
in-house and on-site training programs. Nobody is as committed
to supporting you as Gates!

It’s obvious!
Gates is your total
synchronous drive solution.

▲ Design Flex II ™

▲ Design View™

troubleshooting, tensioning, safety
and installation. The Compass
CD-ROM is available through
authorized Gates Industrial
Power Transmission Distributors.

With industry-leading technologies,
a complete line of high quality,
top-performing products, and
unmatched customer support,
it’s easy to see that Gates is
the partner to choose in meeting
all your needs for synchronous
belt drive systems.

PowerGrip GT2
The new PowerGrip GT2 drive
system combines an innovative
rubber compound with Gates’
industry-leading belt engineering
technology. The result is a belt that
provides extraordinary load-carrying
capacity in high-speed applications
(above 500 rpm). It transmits up
to 200% more power than previous
PowerGrip GT, PowerGrip HTD®
or other first generation curvilinear
synchronous belts. Because of
the increase in horsepower, size
for size, PowerGrip GT2 allows for
the design of belt drive systems
that are small and compact.

With over 42,000 possible drive
combinations available, there’s
no need to over-design your drives.
And with Gates as your system
supplier, inventory, transaction
and acquisition costs can be
significantly reduced.
If you are using PowerGrip GT,
PowerGrip HTD or similar curvilinear first generation synchronous
belts, you can lower your costs
by replacing them with PowerGrip
GT2. The increased capacity of
Power Grip GT2 allows the use
of the next narrower belt size
than the current size with no
sacrifice in service life.

Whether it’s a new or existing
application, the PowerGrip GT2
belt is the only belt you need for
your high-speed drive applications.

PowerGrip GT2
Construction Features
1. Tensile cord — A fiberglass
tensile member provides high
strength, excellent flex life and
high resistance to elongation.
The fiberglass tensile member
provides greater length stability
than competitive belts using
aramid tensile members.
2. Neoprene backing — Strong
neoprene is bonded to the tensile
member for protection against
grime, grease, oil and moisture.
It also protects from frictional
wear if idlers are used on the
back of the belt.
3. Neoprene teeth— High-strength
neoprene compound is molded
integrally with the neoprene
backing. The teeth are
precisely formed and precision-spaced to assure
smooth meshing with
the sprocket grooves,
minimizing tooth
interference with
the mating sprocket.
Minimizing tooth
meshing interference
greatly increases
belt life by preventing tooth wear and
distortion. Audible
drive noise is also
minimized.
4. Nylon facing —
Tough nylon fabric with
a low coefficient of friction
covers the wearing surfaces
of the belt. It protects the tooth
surfaces and provides a durable
wear surface for long service life.

Advantages of the Gates
PowerGrip GT2 drive system:
PowerGrip GT2 drives provide
positive, trouble-free power
transmission and offer many
advantages over conventional
gears and rubber belt drives.
●
●
●
●
●
●
●
●
●
●

Higher capacity
Improved registration
Reduced noise
No lubrication required
No stretching due to wear
Corrosion resistance
Excellent abrasion resistance
Clean operation
Long trouble-free service
Low vibration

The profile fit.
PowerGrip GT2 belts and sprockets
were specially designed to work
together as a system in providing
the best possible performance.

contact area of the belt teeth has
been increased significantly over
other curvilinear belt drive systems. This greatly increases surface contact area and prevents
belt tooth distortion in the sprocket grooves under heavy torque
loads. This results in long, troublefree service. The belt tooth and
sprocket groove curvatures were
also designed to fit closely together with a minimum of backlash.
This means more accurate positioning and less lost motion than
in other belt drive systems.

Precision registration.
PowerGrip GT2 drive systems
provide timing and synchronization
accuracy that make for excellent
registration. They are ideal for
applications where precision is
critical, such as robotics, conveyors and machine tools. Gates
offers belts in a full range of
standard configurations. Custombuilt constructions are also available for individual applications that
require maximum performance.

Quiet operation.
The belt teeth have a deep design
for robustness and excellent ratcheting resistance, yet enter and exit
the sprocket grooves cleanly with
minimal interference. This results
in minimal wear and low noise.
The key to the PowerGrip GT2
system is the fit of the belt teeth
in the sprocket grooves. The flank

The PowerGrip GT2 belt’s specially
engineered teeth mesh cleanly
with sprocket grooves to reduce
noise and vibration. Clean meshing
results in significant noise reduction when compared to PowerGrip
Timing, PowerGrip HTD and some
other rubber belts. PowerGrip
GT2’s high load capacity also
allows narrower drive designs,
further reducing noise.

The operating noise reduction in
comparison with first generation
curvilinear tooth belts is remarkable. PowerGrip GT2 belts are
made to work hard, yet quietly.
Whether or not an application
requires low noise levels,
PowerGrip GT2 belts deliver
a quieter, longer running life —
with no sacrifice in performance.

Taper-Lock®
sprockets & bushings.
PowerGrip GT2 belt drive systems
feature a new line of sprockets
that have been specially designed
to handle the new increased belt
power ratings. These sprockets
utilize Taper-Lock bushings, a bushing system with an industry-proven
track record of robustness and
reliability.
Taper-Lock bushings allow easy
sprocket installation and removal.
Their compact design allows narrow sprocket hubs for compact
drive systems. They assure secure
sprocket mounting and run true,
eliminating any concern for
reliable operation at both
low and high speeds.

The bottom line:
Compared to other rubber belt
drive systems, PowerGrip GT2
drives offer you:
● A smaller, more compact design
● Lowest cost drive system
for high speed applications
● Longest life, width for width
● More belt and sprocket
combinations to choose from
● Easier installation and removal
INDUSTRIAL BELT DRIVE DESIGN - Energy Report
Using Design Flex ™II by the Gates Rubber Company

PowerGrip GT2
Energy Savings Calculator.
The sample calculator here
illustrates the energy savings
of a PowerGrip GT2 drive system.
This energy savings program is
available exclusively on the Gates
Compass PT CD-ROM (version
2.0). Use it to estimate energy
savings of a PowerGrip GT2 drive
system in your application. For
more information on Compass
and Gates’ Design Flex II drive
design program, contact your
local Gates representative.

For:

From:

Application: ENERGY SAVINGS - 50 HP

I
N
P
U
T

Motor HP: 50.00
RPM: 1750
Motor Efficiency: 0.90%
Hours Per Day: 24
Days Per Week: 7
Weeks Per Year: 50
¢/KWh: 8.00

D
R
I
V
E
S

S-Belt PartNo:
DriveR Sprocket:
DriveR Bushing:
DriveN Sprocket:
DriveN Bushing:

Price
$ 102.80
$ 120.94
$ 13.85
$ 187.88
$ 20.82

2600-8MGT-50
P72-8MGT-50
2517 2.1/8
P112-8MGT-50
3020 2.1/8
Total Cost:

R
E
S
U
L
T
S

KWh Per Year:
Energy Savings:

V-Belt Part No:
DriveR Sheave:
DriveR Bushing:
DriveN Sheave:
DriveN Bushing:

TotalCost:

348133 KWH/yr.
$ 1392.53 /yr.
Cost of Replacing Existing V-Belt Drive

Where Existing Drive is Operational:

$ 446.29

Payback Period:

4 months.

Where V-Belt Needs Replacement:

$ 372.99

Payback Period:

3 months.

Where Entire Drive Needs Replacement:

$ 114.91

Payback Period:

1 months.

- Drive Design by Design Flex II.
- KWh Per Year are calculated using the following formula:
(Motor HP) x (0.746) x (Hours/Year) / (Motor Efficiency)
- Energy Savings are calculated using the following formula:
(KWh Cost) x (KWh Per Year) x 0.05

Price
$ 73.30
$ 90.05
$ 18.57
$ 128.64
$ 20.82

4 / 5VX1000
QD4/5V7.10
SF 2.1/8
TL4/5V10.30
3020 2.1/8

$ 446.29

NOTES

Gates PowerGrip GT2 belts are protected by U.S.
patents 4,605,389, 4,403,979, 4,662,863,
5,362,281 and U.S. and foreign patents pending.

Gates Rubber Company
900 So. Broadway
Denver, Colorado 80217-5887
303 - 744 - 5800

$ 331.38

PowerGrip GT2 drive systems provide the lowest initial cost compared to
any other high-speed rubber belt synchronous system. And here’s proof!

■ PowerGrip
■ PowerGrip

®
®

GT®2
GT®

■ Goodyear

®

■ RPP

Eagle Pd®

®

■ HTD

Plus®

$20

35

®

Panther®

0.7

Horsepower Per mm Belt Width

$15

25
20

$10
15

Relative Cost

Published Horsepower Ratings

■ Dayco

0.8

30

10

$5

5
0

®

HTD

PGGT RPP Plus Panther

Eagle

PGGT2

$0

7.5

10

15

20

25

30

40

50

60

0.6
0.5
0.4
0.3
0.2
0.1
0.0

PGGT

HTD

Eagle RPP Plus Panther PGGT2

Motor Horsepower

Published Horsepower Ratings

Horsepower Capacity
Per mm Belt Width

(1750 rpm Motor Speed, 8mm Pitch)

(8mm Pitch, 56 Groove Sprocket, 1750 rpm
Motor Speed, Service Factor Added)

$10

$10

$8

$8

$6

$6

$4

$4

Relative Cost

Relative Drive Cost
For Motor Horsepowers

Relative Cost

(8mm Pitch, 56 Groove Sprocket,
1750 rpm Motor Speed, 1” Belt Width)

$2

$2

$0

PGGT2 RPP Plus Panther

PGGT

HTD

Eagle

$0

PGGT2 RPP Plus Panther

Eagle

HTD

Relative Drive Cost
Per Motor Horsepower

Relative Drive Cost
Per Inch of Belt Width

(8mm Pitch, 56 Groove Sprocket, 1750 rpm
Motor Speed, Service Factor Added)

(8mm Pitch, 56 Groove Sprocket,
1750 rpm Motor Speed)

8mm Pitch Product
Line Comparison

PGGT

Gates
PowerGrip GT2

Goodyear
Eagle Pd

Dayco
RPP Panther

19

26

20

Center Distance Range

3.46 – 83.15

5.51 – 44.09

3.78 – 83.15

Maximum Speed Ratio

6.545:1

11.200:1

8.730:1

Belt Length Selections

33

14

26

384 – 4400mm

640 – 2400mm

480 – 4400mm

20-30-50-85

16-32

12-22-35-60

20000+

7000+

16500+

Sprocket Diameters

Belt Length Range
Belt Width Selections
Total Drive Combinations

® ™ Eagle PD is a trademark of The Goodyear Tire & Rubber
Company. Dayco and Panther are registered trademarks
and RPP is a trademark of Dayco Products Inc.

Design Performance Grouping – PowerGrip GT2
PowerGrip GT2 – 8 & 14mm Belts can be used to replace other non-Gates curvilinear belts in the next smallest width

$100

$80

Replacement Cost

$60

$40
37%
28%

$20

16%

$0

85mm to 50mm 50mm to 30mm 30mm to 20mm

Company

Product Trade Name

Nomenclature

Belt-Pitch

Profile

Bando
Dodge
Electron
Gates
Jason
MBL
Opti Belt

Synchro-Link® – HT
HT100™
EHT®
HTD®
HTB®
HTT™
HTD®

1600-8M-20-H
1600-8M-20 HT100
1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20

8 & 14mm
8 & 14mm
8 & 14mm
8 & 14mm
8 & 14mm
8 & 14mm
8 & 14mm

HTD
GT
HTD
HTD
HTD
HTD
HTD

Browning
Dayco
Goodyear
T.B. Woods
Thermoid

HPT®
RPP®
HPPD™
RPP®
Synchro-Curve® Timing

1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20

14mm
14mm
14mm
14mm
14mm

RPP
RPP
RPP
RPP
RPP

Dayco
Dayco
Dodge
T.B. Woods
T.B. Woods

RPP Plus™
HPR™
HT150™
RPP Plus™
HPR™

1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20

14mm
14mm
8 & 14mm
14mm
14mm

RPP
RPP
GT
RPP
RPP

Competitors Width
8mm – Pitch

PowerGrip GT2 – Width
8mm – Pitch

Competitors Width
14mm – Pitch

PowerGrip GT2 – Width
14mm – Pitch

20
30
50
85

20
20
30
50

40
55
85
115
170

40
40
55
85
115

Belt Width

Replacement Belt Cost Saving %
(HTD & PowerGrip GT to PowerGrip GT2,
8mm Pitch)

$100

Design Performance Grouping – PowerGrip GT
PowerGrip GT – 8 & 14mm Belts can be used to replace other non-Gates curvilinear belts in the same width

$80

Replacement Cost

$60

$40

39%

38%

$20

$0

Company

Product Trade Name

Nomenclature

Belt-Pitch

Profile

Bando
Dodge
Electron
Gates
Jason
MBL
Opti Belt

Synchro-Link® - HT
HT100™
EHT®
HTD®
HTB®
HTT™
HTD®

1600-8M-20-H
1600-8M-20 HT100
1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20

8 & 14mm
8 & 14mm
8 & 14mm
8 & 14mm
8 & 14mm
8 & 14mm
8 & 14mm

HTD
GT
HTD
HTD
HTD
HTD
HTD

Browning
Dayco
Goodyear
T.B. Woods
Thermoid

HPT®
RPP®
HPPD™
RPP®
Synchro-Curve® Timing

1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20
1600-8M-20

14mm
14mm
14mm
14mm
14mm

RPP
RPP
RPP
RPP
RPP

18%
10%

10%

170mm 115mm 115mm
85mm
55mm
to 85mm to 85mm to 55mm to 55mm to 40mm

Belt Width

Replacement Belt Cost Saving %
(HTD & PowerGrip GT to PowerGrip GT2,
14mm Pitch)

14mm Pitch Product
Line Comparison

Gates
PowerGrip GT2

Goodyear
Eagle Pd

Dayco
RPP Panther

23

21

23

Center Distance Range

7.99 – 127.32

8.54 – 47.40

7.99 – 89.84

Maximum Speed Ratio

6.857:1

6.00:1

7.71:1

Belt Length Selections

22

14

18

Belt Length Range

966 – 6860mm

994 – 2800mm

966 – 4956mm

Belt Width Selections

40-55-85-115-170

35-53-70-105

20-42-65-90-120

22000

8,000+

17,500+

Sprocket Diameters

Total Drive Combinations

Make the switch
to PowerGrip GT2.
PowerGrip GT2 drives will
provide greater horsepower
capacity at less cost than any
other synchronous belt drive
system in a wide variety of
industry applications including:

Lumber, Pulp & Paper
Conveyors, repulpers,
sentry screens, effluent
systems, presses, waxers,
chippers, debarkers,
slashers, chip ‘n saws,
edgers, roll grinders,
screw conveyors, flotation
cells, cut-off saws, hourglass
rolls, dryers, agitators,
calendars, pumps, winders

Food Processing

Packaging

Pumps, bucket elevators,
belt conveyors, icing machines,
elongators, dough mixers,
cookers, mills, bottling machines,
meat grinders, hog dehairers

Box makers, carton sealers,
case palletizers, and live roll,
apron, belt, chain and
screw conveyors

Aluminum/Steel
Bucket elevators, shot blasters,
conveyor drives, scrap cutters,
sand seals, drag-out machines,
polishers, cooling chambers,
muffler furnaces,
mandrel stripping rods,
spinner cars, gray iron
foundries, sand conveyors,
bucket elevators, grinders

Petrochemical Industries
Air coolers, fin fans,
chlorine compressors,
processing, centrifuges,
dryers, compressors,
pumps

Sand, Gravel & Concrete
Feeder drives, conveyor drives,
elevators, screw conveyors

Glass
Manufacturing /Bottles
Conveyors, crushers,
grinders, carton sealers,
case palletizers

HVAC
Air blower fan drives,
ventilating fans, exhaust fans

SAFETY POLICY
WARNING! Be Safe! Gates belt drive systems are very reliable when used safely and
within Gates application recommendations. However, there are specific USES THAT
MUST BE AVOIDED due to the risk of serious injury or death. These prohibited misuses include:

Primary In-Flight Aircraft Systems
Do not use Gates belts, pulleys or sprockets on aircraft, propeller or rotor drive systems or in-flight accessory drives. Gates belt drive systems are not intended for aircraft
use.

Lift Systems
Do not use Gates belts, pulleys or sprockets in applications that depend solely upon
the belt to raise/lower, support or sustain a mass without an independent safety
backup system. Gates belt drive systems are not intended for use in applications requiring special “Lift” or “Proof” type chains with minimum tensile strength or certified/test tensile strength requirements.

Braking Systems
Do not use Gates belts, pulleys or sprockets in applications that depend solely upon
the belt to slow or stop a mass, or to act as a brake without an independent safety
backup system. Gates belt drive systems are not intended to function as a braking device in “emergency stop” systems.

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The Driving Force in Power Transmission.

Page 1

®

®

Introduction — PowerGrip GT 2 Belt Drives
There’s nothing like a good set of teeth
when it comes to synchronous belts.
The advantages of Gates PowerGrip GT2 belt drives are overwhelming
The PowerGrip GT2 Belt Drive System is an advance in product design over Gates older, standard HTD system.
The PowerGrip GT2 System, featuring a modified curvilinear belt tooth profile, provides timing and indexing accuracy equivalent to the conventional PowerGrip Trapezoidal Belt System. Plus, PowerGrip GT2 Belts have a higher
capacity and longer belt life than trapezoidal belts.
It’s difficult to make a true quantitative comparison between the backlash of a trapezoidal tooth drive and PowerGrip
GT2 tooth drive due to the difference in “sprocket to belt tooth” fit. (See illustrations below). Trapezoidal belts contact
the sprocket in the root radius– upper flank area only, while the PowerGrip GT2 system permits full flank contact.
The main stress line in a trapezoidal tooth timing belt is at the base of the teeth. During operation this stress greatly
reduces belt life. The PowerGrip GT2 system overcomes this condition with its complete tooth flank contact which
eliminates the tooth stress line area. This greatly increases belt life and prevents tooth distortion caused by drive
torque. In addition, the conventional timing belt has a chordal effect as it wraps small sprockets. This is significantly
reduced in the PowerGrip GT2 system because there’s full tooth support along the sprocket. Full support improves
meshing, reduces vibration and minimizes tooth deformation.
On drives using a low installation tension, small pulleys, and light loads, the backlash of the PowerGrip GT2 system
will be slightly better than the trapezoidal timing belt system. However, with increased tension and/or loads and/or
sprocket sizes the performance of the PowerGrip GT2 system becomes significantly better than the trapezoidal timing belt system.

PowerGrip® GT2® Belt
Tooth/Groove Contact

PowerGrip® HTD® Belt
Tooth/Groove Contact

PowerGrip® Timing Belt
Tooth/Groove Contact

The PowerGrip GT2 system is an extension of the HTD system with improved load-carrying capacity. HTD was developed for high torque drive applications, but is not acceptable for most precision indexing or registration applications. The HTD design requires substantial belt tooth to sprocket groove clearance (backlash) to perform. As smaller
diameter sprockets are used, the clearance required to operate properly is increased. HTD drive clearance, using
small diameter sprockets, is approximately four times greater than than an equivalent timing belt drive.

Deep tooth profile makes the difference
The PowerGrip GT2 system’s deep tooth design increases the contact area which provides improved resistance to
ratcheting. The modified curvilinear teeth enter and exit the sprocket grooves cleanly resulting in reduced vibration.
This tooth profile design results in parallel contact with the groove and eliminates stress concentrations and tooth deformation under load. The PowerGrip GT2 design improves registration characteristics and maintains high torque
carrying capability.

Page 2

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The Gates Rubber Company

®

®

Introduction — PowerGrip GT 2 Belt Drives
The choice of the industry
for ultimate durability and precision

for accurate registration, heavy loads
and small sprockets.

The Gates PowerGrip GT2 combines the
very best in technology and construction
design to give improved performance
and extended product life.

Sounds this quiet……
The PowerGrip GT2 belt’s specially engineered teeth mesh cleanly with sprocket
grooves to reduce noise and vibration.
Clean meshing results in significant
noise reduction when compared to
PowerGrip Timing and HTD belts.

Last longer than competitive belts
The PowerGrip GT2 belt has been tested
against the competition, under equivalent
conditions, at speeds up to
9,000 RPM. It outlasted the competition more than
two to one. Strong fiberglass tensile cords wrapped in
a durable neoprene body gives it flexibility and increases service life. A deep tooth profile provides superior load-carrying strength and greatly reduces
ratcheting when used with Gates designed sprockets.

Precision registration
PowerGrip GT2 Belt Drive Systems provide timing
and synchronization accuracy that make for flawless
registration, with no loss of torque carrying capability.

Increases load-carrying capacity
Performance far exceeds HTD and trapezoidal belt
capabilities making PowerGrip GT2 belts the choice

When precision is critical,
depend on PowerGrip GT2 belts
PowerGrip GT2 belts are specifically designed for applications where precision is critical. Applications such
as robotics, conveyors and machine tools. We offer
belts in a variety of sizes… custom built constructions
are also available for individual applications that require maximum performance. Gates worldwide manufacturing capabilities assures you of prompt service
for important markets.
PowerGrip GT2 belts are currently available in 5mm,
8mm, 14mm and 20mm pitches.
See Pages 7-58 for PowerGrip GT2 Belt Drives.

Here are just some of the many applications of PowerGrip GT2 belts:
n
n
n
n

machine tools
hand power tools
DC stepper/servo applications
pumps

n
n
n
n

R

floor care equipment
medical diagnostic equipment
centrifuges
fans

n
n
n
n

robotics equipment
vending equipment
conveyors
compressors

The Driving Force in Power Transmission.

Page 3

®

Introduction — PowerGrip Timing Belt Drives
Provide positive,
non-slip power transmission

Gates timing belts are made with a true
design pitch, a standard of the Rubber
Manufacturers’ Association and the International Standards Organization.

PowerGrip Timing Belts are a good standard line product with a history of reliability. Around since the late 1940’s, this
product line has been the flagship of synchronous power transmission prior to
Gates introduction of PowerGrip HTD
and GT2 Belts.

PowerGrip Timing Belts are recommended for these types of applications:
n
n
n

office equipment
appliances
medical equipment

n
n
n

data processing equipment
power tools
robotics

n
n

spindles
mailing equipment

See pages 59-84 for PowerGrip Timing Drives.

Page 4

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The Gates Rubber Company

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®

Introduction — PowerGrip Twin Power Belt Drives
Dual driving surfaces allow for unique,
problem solving drive designs

Twin Power Belts are similar in construction to regular synchronous belts, including nylon-faced teeth on both sides.

Gates Twin Power Belts have teeth on
both sides to provide synchronization from
both driving surfaces. This special feature
makes possible unique drive designs such
as multipoint drives, rotation reversal with
one belt, serpentine drives, etc. They may
also provide solutions to other difficult design problems.

NOTE: Twin Power Belts are available in
GT2 and Timing Belt configurations, so
designers can use them in a wide variety
of applications.

Some typical PowerGrip Twin Power applications are:
n

serpentine drives

n

reversing rotations
See pages 95-99 for PowerGrip Twin Power Belting.
®

Introduction — PowerGrip Long Length Belting
For drives that require belt lengths
longer than can be produced in conventional endless form.

For information or assistance on any
long length belt problem, contact Gates
Application Engineering.

Long-length PowerGrip Belting has the
same basic construction as conventional
Gates synchronous belts.

NOTE: Long-length PowerGrip Belting
is available in GT, HTD, Timing Belt and
Synchro-Power Polyurethane configurations.

Typical PowerGrip Long Length Belting uses are:
n

reciprocating carriage drives

n

rack and pinion drives

n

large plotters

See pages 85-94 for PowerGrip Long Length Belting.

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The Driving Force in Power Transmission.

Page 5

®

®

PowerGrip GT 2 Belt Drives
The operating noise comparison with first generation
curvilinear tooth belts is remarkable. PowerGrip GT2
belts are made to do the work quietly. Whether or not
an application requires low noise levels, PowerGrip
GT2 belts give quieter, longer running life —with no
sacrifice in performance like other competitive belts.

Using a mulitmillion-dollar manufacturing process that
features breakthrough belt building technology, Gates
assures each belt meets the highest standards of precision construction.

Test Conditions
Belt

Length
Width

1400mm
40mm

Sprockets

DriveR
DriveN

36 Grooves
36 Grooves

Load
Speed

36 HP
1750 rpm

All tests in HTD Sprockets

Page 6

R

Please note the “Annoyance Zone” in the graph
above. This zone, roughly 2,000-4,000 Hz, is the
frequency range to which the human ear is the
most sensitive. The PowerGrip GT2 belt has an
obvious advantage in this zone. Also note the
Total Sound Pressure Level (SPL) depicted in
the adjoining bar graph. Here again, the overall
noise level (SPL) is dramatically lower for the
PowerGrip GT2 belt.

The Gates Rubber Company

®

®

PowerGrip GT 2 Belt Drives
Belt Construction
3. Neoprene Teeth

PowerGrip GT2 drives provide positive, trouble-free power transmission in low speed —
high torque applications and offer many advantages over conventional chain, gear and other
belt drives.
Advantages:
n

4. Nylon Facing

n
n
n

1. Tensile Member

n
n
n

2. Neoprene Backing

n
n

Higher capacity
Improved registration
Reduced noise
No lubrication required
No stretching due to wear
Corrosion resistance
Excellent abrasion resistance
Clean operation
Long trouble-free service

Construction Features
The tooth design substantially improves stress distribution and allows extra high loading. The molded teeth enter and leave the sprocket grooves
smoothly with negligible friction — functioning in much the same way as
teeth on a gear.
Construction consists of these components:

R

1.

Tensile Member — Provides high strength, excellent flex life and
high resistance to elongation.

2.

Neoprene Backing — Strong Neoprene bonded to the tensile
member for protection against grime, oil and moisture. It also protects from frictional wear if idlers are used on the back of the belt.

3.

Neoprene Teeth — Shear-resistant Neoprene compound is
molded integrally with the Neoprene backing. They are precisely
formed and accurately spaced to assure smooth meshing with the
sprocket grooves.

4.

Nylon Facing — Tough nylon fabric with a low coefficient of friction
covers the wearing surfaces of the belt. It protects the tooth surfaces and provides a durable wearing surface for long service.

The Driving Force in Power Transmission.

Page 7

®

PowerGrip Belt Drive Selection Procedure
Selection of a stock PowerGrip Belt Drive System involves these five steps:
1. Calculate design horsepower.
2. Select belt pitch
3. Select sprockets and belt.
4. Select belt width.
5. Determine bushing and bore requirements.
Sample Problem
A gear pump is to be driven by a 30 hp normal torque
electric motor with an output speed of 1160 rpm. The
gear pump is to be driven at 580 rpm ±5%. The center
distance is to be approximately 30 inches, but can be
altered ±3 inches, if necessary. The motor shaft is 218
inches and the pump shaft is 3 inches. The pump will operate 16 hours a day, five days a week. The pump
sprocket is limited to 18 inches OD. There are no unusual
drive conditions. Design using PowerGrip GT2.
Step 1 Determine Design Horsepower
Procedure
To calculate the design hp, first determine the relative
severity or service factor of the drive. Average hours
per day of service also should be considered. Locate
the power source and the driveN unit in the Service
Factors table on Page 15. The design hp then is determined by multiplying the rated hp (usually the
nameplate rating) by the service factor determined
above.
Example
Using the Service Factor Chart, the driveR would be
found in the first group. Since the pump will run 16
hours per day, follow the continuous service column
down to the driveN machines group for gear pumps.
This gives a 1.7 Service Factor. Since this is not a low
speed or speedup drive, no additional service factor is
required.
Design HP = 30 × 1.7 = 51DHP

Step 2 Select Belt Pitch
Procedure
Using the design hp and the rpm of the faster shaft,
select from Belt Pitch Selection Guide graph on Page
11.
Example
Locate 1160 rpm on the RPM of Faster Shaft scale
and move over to where the Design Horsepower of 51
Dhp line intersects. The intersection falls at the 8mm
and 14mm pitch overlap area. Both 8mm and 14mm
pitches should be considered.
Step 3 Select Sprockets and Belt Length
Procedure

Example
1160
rpm of faster shaft
= 2.0
=
580
rpm of slower shaft

b. Select sprocket combination and belt length. Turn
to the Stock Drive Selection Tables (pages 16 through
43, 52 through 55 and 61 through 74) and in the
proper pitch tables find the chosen speed ratio.
Moving over within the speed ratio block, find the
stock sprocket combinations available for that speed
ratio. Selection of the proper combination will depend
on the center distance required, minimum or maximum required sprocket diameter and the recommended minimum sprocket diameter for electric
motors (See table on Page 12).
After selecting possible sprocket combinations and
center distances, record belt length (top of column)
Length Factor (bottom of column), and the Teeth In
Mesh Factor if applicable.
Example
First, using the Stock Drive Selection Tables for 8mm
pitch belts on pages 30 through 35, we locate the
speed ratio of 2.0 to 1 on pages 32 and 33. The various sprocket combinations with a center distance
within the required tolerance range is 8. Of these,
three are closest to the desired 30 inches. These are
72 to 144, 56 to 112 and 40 to 80. The minimum
sprocket diameter of 6.1 inches for a 30 hp motor at
1160 rpm (See table on Page 12) eliminates the 56 to
112 and 40 to 80 sprocket combinations. Only the
8mm pitch, 72 to 144 sprocket combination will be
considered further. On the line for the 72 to 144
sprocket combination, the center distance of 30.02
inches uses a 2400mm (94.49-inch), 8mm pitch belt.
The belt length factor is 1.2.
Secondly, using the Stock Drive Selection Tables for
14mm pitch belts on pages 36 through 43, locate the
speed ratio of 2.0 to 1 on page 40. Several combinations are shown which will meet the 30 ±3-inch center
distance requirement. The maximum OD limit of 18
inches on the driveN sprocket eliminates two of the
combinations and the preference for as close to 30
inches center distance would favor the 36 to 72 and
28 to 56 combinations. However, the 4.912-inch diameter of the 28-groove sprocket is less than the recommended minimum diameter of 6.1 inches for the
electric motor. So the 36 to 72 sprocket combination
is chosen for further consideration.
For the 36 to 72, 14-mm pitch sprocket combination,
the belt length used for the 30.42-inch center distance
is a 2310mm (90.94-inch), 14mm pitch belt. The belt
length factor is 1.0.

a. Determine speed ratio.
The speed ratio can be determined by dividing the
rpm of the faster shaft by the slower shaft rpm.

continued
Page 8

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The Gates Rubber Company

®

PowerGrip Belt Drive Selection Procedure—continued
Procedure
c. Check belt speed.
Do not exceed 6500 fpm with stock sprockets. Belt
Speed is determined using the following formula:
V(fpm) =

PD (inches) × Speed (rpm)
3.82

Example
Determining belt speed for each of the drive systems
shows that the belt speed does not exceed 6500 fpm
and can be considered further.
8mm Drive:
V =

7.218 × 1160
= 2191.9 fpm
3.82

14mm Drive:
V =

6.316 × 1160
= 1917.9 fpm
3.82

Step 4 Select Belt Width
Procedure
Belt Width Selection Tables (pages 44 through 51, 56
through 58 and pages 75 through 84) show the horsepower ranges of stock belt widths. The left-hand column
shows the speed of the smaller sprocket. Across the top
are various stock sprockets. The base rated horsepower
capacity of a given sprocket at a specific rpm is at the
point of intersection of the rpm row and sprocket column.
This base horsepower rating must be corrected for
the belt length selected and for the number of teeth in
mesh (if less than 6). Multiply the base table rating by
the applicable Length Factor and Teeth In Mesh Factor (if applicable), both determined in Step 3b. The
corrected horsepower rating must equal or exceed
design hp.
Where there are several choices, drive limitations
may control the selection. In addition, the following
rules must be observed.
1. Larger sprockets mean less belt width.
2. Larger sprockets yield extra long service life.
3. Avoid drives where the belt width exceeds sprocket
diameter.

4. Avoid drives where center distance is greater than 8
times the diameter of the smaller sprocket. Refer to
Section II, Drive Alignment on Page 141 for additional
details.

Example
Referring to the 8mm pitch Belt Width Selection tables
on page 47, locate the 1160 rpm line in each table in
turn. Proceeding across to the 72-groove sprocket
column (Smaller sprocket groove number), note the
base belt horsepower capacity in each table. The
50mm (1.97-inch) width belt has a base horsepower
rating which, when multiplied by the length factor of
1.2, exceeds the design horsepower.

And, repeating the procedure for the 14mm pitch belt
horsepower tables on pages 49 through 51, we
find the 55mm (2.16-inch) width belt has an 77.1 base
horsepower rating for a 36-groove sprocket. This,
multiplied by the length factor of 1.0, gives a corrected
horsepower rating of 77.1 which also exceeds the design horsepower.
Since there is now a choice between the 8mm pitch,
72 to 144 ratio drive components, and the 14mm
pitch, 36 to 72 ratio drive components, the rules as
given in the procedure column must be considered.
Rules 1 and 2 would dictate larger sprockets. Width is
unaffected. Rules 3 and 4 would not apply, so the
8mm pitch drive system is the choice.
Step 5 Check and Specify Stock Drive Components
Procedure
a. Check the sprockets selected in steps 3 and 4
against the design requirements using the dimensions
given in the Sprocket Specification Tables on pages
100 through 114. Use flange diameter in checking
against maximum diameter requirements.
Example
From the table on Page 105, we find the
P144-8MGT-50 driveN sprocket has an overall
diameter of 14.383 inches which is less than the
18-inch maximum specified.
Procedure
b. Determine the type of bushing and check bore
sizes by using the Sprocket Specification Tables; find
the bushings to be used with the required sprockets.
From the Stock Bushing Tables on pages 119 through
122, check the bore range and keyway dimensions
against the design requirements.
Example
Also from the sprocket data on Page 105 we note that
the P72-8MGT-50 sprocket takes a 2517 bushing and
the P144-8MGT-85 sprocket takes a 3020 bushing.
On Page 119 in the bushing data table, a 2517 bushing has a bore range of 12 to 21116 inches which includes the 2 18-inch bore required for the driveR shaft.
The 3020 bushing has a bore range form 7 8 to 3 14
inches which meets the 3-inch bore required for the
driveN shaft.
Procedure
c. Specify stock drive components
Example
They are as follows:
1—2400-8MGT-50 PowerGrip GT2 belt
1—P72-8MGT-50 driveR sprocket
1—2517 Bushing with a 2 18-inch bore
1—P144-8MGT-50 driveN sprocket
1—3020 Bushing with a 3-inch bore

68.5 hp × 1.2 = 82.2 hp

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The Driving Force in Power Transmission.

Page 9

High Speed Drive Survey and Energy Savings Worksheet
Customer Information
Distributor _______________________________________________________________________________
Customer ________________________________________________________________________________

Drive Information
I.D. of Drive (location, number, etc.) ___________________________________________________________
Description of DriveN Equipment ____________________________________________________________
Manufacturer of DriveN Equipment __________________________________________________________
Horsepower Rating of Motor _________ DriveN HP Load (Peak) ______________ (Normal) _____________
Motor Frame Size _________ Motor Shaft Dia. ___________ DriveN Shaft Dia. ___________________
Speed:
DriveR RPM _____________ RPM Measured with Contact or Strobe Tachometer

q Yes

q No

DriveN RPM _____________ RPM Measured with Contact or Strobe Tachometer

q Yes

q No

Speed Ratio _____________ Speed Up ________________ or Speed Down ____________________
Center Distance: Minimum _______________ Nominal ________________ Maximum ________________
Existing Drive Components: DriveR _______________________ DriveN ___________________________
Belts _____________________________ Belt Manufacturer __________________________________
Ambient Conditions:
Temperature _____________ Moisture __________________Oil, etc. ___________________________
Abrasives __________________________________________ Shock Load _______________________
Static Conductivity Required?

q Yes

q No

Maximum Sprocket Diameter (OD) and Width Limitations (for guard clearance):
DriveR: Max. OD _________ Max. Width _______ DriveN: Max. OD ________ Max. Width _______
Guard Description _____________________________________________________________________
Motor Mount:
Double Screw Base?

q Yes

q No

Motor Mounted on Sheet Metal?

Adequate Structure?

q Yes

q No

Floating/Pivot Motor Base?

q Yes

q Yes

q No

q No

Start Up Load:
%Motor Rating at Start Up________ AC Inverter?

q Yes

q No

Soft Start?

q Yes

q No

Duty Cycle:
Number of Starts/Stops ______________________ times per ________________ (hour, day, week, etc.)

Energy Savings Information
Energy Cost per KW-Hour __________________________________________________________________
Hours of Operation:

Page 10

_______Hours per Day _______Days per Week ________Weeks per Year _________

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The Gates Rubber Company

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PowerGrip Belt Drives
PowerGrip® GT®2 Belt Pitch Selection Guide
7000
5000
3450

5mm
PowerGrip GT2
1750

RPM of Faster Shaft

1160
870
600
400

200

20mm
PowerGrip GT2

8mm
PowerGrip GT2

14mm
PowerGrip GT2

100
80
60

40

20

10

Design Horsepower
®

PowerGrip Timing Belt Pitch Selection Guide

20,000

XL = 0.200" Pitch
L = 0.375" Pitch
H = 0.500" Pitch

RPM OF Faster Shaft

10,000

5,000
4,000
3,450
2,500

XL

1,750

L

1,160
870

H

690
575
400
300

NONSTOCK
200
150
100
0.01

0.15 .02

.03 .04 0.05 .07

0.1

.15

.2

.3

0.5

.7

1.0

1.5 2.0

3.0 4.0 5.0

7.0

10

15

20

30

40 50

70

100

150 200

300 400 500

1,000

Design Horsepower
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The Driving Force in Power Transmission.

Page 11

PowerGrip Belt Drives
®

Mimimum Recommended Sprocket Outside Diameters
for General Purpose Electric Motors — Synchronous Belts
Motor RPM (60 Cycle and 50 Cycle Electric Motors
Motor
Horsepower
1
2

3

4

1
1 12
2
3
5
7
10
15
20
25
30
40
50
60
75
100
125
150
200
250
300

575
485*
—
—
2.7
2.7
3.4
4.1
4.1
4.7
5.4
6.1
7.4
8.1
9.0
9.0
9.9
10.8
12.5
16.2
18.0
19.8
19.8
19.8
24.3

690
575*
—
—
2.3
2.7
2.7
3.4
4.1
4.1
4.7
5.4
6.1
7.4
8.1
9.0
9.0
9.9
11.7
13.5
16.2
18.0
19.8
19.8
24.3

870
725*
2.0
2.2
2.2
2.2
2.7
2.7
3.4
4.0
4.0
4.7
5.4
6.1
6.1
7.4
7.6
9.0
8.5
10.8
13.5
16.2
19.8
—
—

1160
950*
—
2.0
2.2
2.2
2.2
2.7
2.7
3.4
4.0
4.0
4.7
5.4
6.1
6.1
7.4
7.2
9.0
9.0
10.8
11.7
—
—
—

1750
1425*
—
—
2.0
2.2
2.2
2.2
2.7
2.7
3.4
4.0
4.0
4.0
4.7
5.4
6.1
6.7
7.7
7.7
9.5
9.5
11.9
—
—

3450
2850*
—
—
—
2.0
2.2
2.2
2.2
2.7
2.7
3.4
4.0
4.0
—
—
—
—
—
—
—
—
—
—
—

* These RPM are for 50 cycle electric motors.
# Use 8.6 for Frame Number 444 T only.
Data in the white area are from NEMA Standard MG-1-14-42, June, 1972, while data in the light blue area are from MG-1-14-43, January,
1968.
The dark blue area is a composite of electric motor manufacturers data. They are generally conservative, and specific motors and bearings
may permit the use of a smaller motor sprocket. Consult the motor manufacturer. See Engineering Section II-13, Bearing/Shaft Load
Calculations on Page 142.
NOTE: For a given motor horsepower and speed, the toal belt pull is related to the motor sprocket size. As this size decreases, the total belt
pull increases. Therefore, to limit the resultant load on motor shaft and bearings, NEMA lists minimum sprocket sizes for the various motors.

Page 12

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The Gates Rubber Company

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PowerGrip GT 2 Belt Drives
Gates 5mm, 8mm, 14mm and 20mm pitch GT2 belts
have helically-wound fiberglass tension members embedded in a Neoprene body with the belt teeth faced
with a tough wear-resistant nylon fabric.

5mm Pitch −Reference Dimensions

5mm
.197 In.

The three principal dimensions of a belt are
Pitch
Pitch Length
Width
Belt pitch is the distance in millimeters between two
adjacent tooth centers as measured on the pitch line of
the belt. Belt pitch length is the total length (circumference)
in millimeters as measured along the pitch line. The theoretical pitch line of a PowerGrip GT2 belt lies within the
tensile member.
The part number designations for PowerGrip GT2 belts
depend on the pitch of the belt. Belt designations are
shown below for each of the available pitches.

3.81mm
.150 In.

1.93mm
.76 In.

8mm Pitch −Reference Dimensions

5mm PowerGrip GT2
Example: 5mm pitch, 1600mm pitch length, 25mm belt width
Belt Designation: 5MR-1600-25

8mm
.315 in.

8mm, 14mm PowerGrip GT2
Example: 14mm pitch, 1610mm pitch length, 55mm belt width
Belt Designation: 1610-14MGT-55
20mm PowerGrip GT2
Example: 20mm pitch, 2000mm pitch length, 230mm belt width
Belt Designation: 2000-20M-230

Pitch (circular pitch)

Belt
Pitch
Line

Pitch
Diam
ete

r

5.59mm
.220 in.

3.28mm
.129 in.

14mm Pitch - Reference Dimensions

14mm
.552 in.

side
Out ter
e
Diam

Sprocket
Pitch
Circle

9.91mm
.390 in.

5.84mm
.230 in.

20mm Pitch −Reference Dimensions
The part number designations for PowerGrip GT2
sprockets depend on the pitch of belt. Sprocket designations are shown below for each of the available
pitches.

20mm
.787 in.

5mm, 8mm, 14mm PowerGrip GT2
Example: 14mm pitch, 48 grooves, 55mm belt width
Sprocket Designation: P48-14MGT-55
20mm PowerGrip GT2
Example: 20mm pitch, 52 grooves, 230mm belt width
Belt Designation: P52-20M-230
NOTE: 20mm pitch PowerGrip GT2 belts use 20mm pitch HTD
sprockets.

R

13.2mm
.520 in.

The Driving Force in Power Transmission.

8.4mm
.330 in.
Page 13

®

®

PowerGrip GT 2 Belt Drives
The following tables list the stock Industrial Belts and their essential specification.

5mm Pitch PowerGrip GT2 Stock Belt Lengths
Pitch Length
Designation
5MR-300

(mm)
300

(in)
11.81

No. of
Teeth
60

5MR-355
5MR-375
5MR-400
5MR-425
5MR-450
5MR-405
5MR-500
5MR-535
5MR-565
5MR-580
5MR-600
5MR-625
5MR-650
5MR-700
5MR-750
5MR-800
5MR-850
5MR-900
5MR-1000
5MR-1150
5MR-1300
5MR-1450
5MR-1600
5MR-1720
5MR-2100

355
375
400
425
450
405
500
535
565
580
600
625
650
700
750
800
850
900
1000
1150
1300
1450
1600
1720
2100

13.98
14.76
15.75
16.73
17.72
15.99
19.69
21.06
22.24
22.83
23.62
24.61
25.59
27.56
29.53
31.50
33.46
35.43
39.37
45.28
51.18
57.09
62.99
67.72
82.67

71
75
80
85
90
81
100
107
113
116
120
125
130
140
150
160
170
180
200
230
260
290
320
344
420

5MR Stock Belt Widths
Belt Width
Code
09
15
25

Belt Width
(mm)
9
15
25

Belt Width
(in)
0.354
0.591
0.984

8mm Pitch PowerGrip GT2 Stock Belt Lengths
Pitch
Length
Designation
384-8MGT
480-8MGT
560-8MGT
600-8MGT
640-8MGT
720-8MGT
800-8MGT
840-8MGT
880-8MGT
920-8MGT
960-8MGT
1040-8MGT
1064-8MGT
1120-8MGT
1160-8MGT
1200-8MGT
1224-8MGT
1280-8MGT
1440-8MGT
1512-8MGT
1584-8MGT
1600-8MGT
1760-8MGT
1800-8MGT
2000-8MGT
2200-8MGT
2400-8MGT
2600-8MGT
2800-8MGT
3048-8MGT
3280-8MGT
3600-8MGT
4400-8MGT

Page 14

(mm)
384
480
560
600
640
720
800
840
880
920
960
1040
1064
1120
1164
1200
1224
1280
1440
1512
1584
1600
1760
1800
2000
2200
2400
2600
2800
3048
3280
3600
4400

(in)
15.12
18.89
22.05
23.62
25.20
28.35
31.50
33.07
34.65
36.22
37.80
40.94
41.89
44.09
45.67
47.24
48.19
50.39
56.69
59.53
62.36
62.99
69.29
70.87
78.74
86.61
94.49
102.36
110.24
120.00
129.13
141.73
173.23

No. of
Teeth
48
60
70
75
80
90
100
105
110
115
120
130
133
140
145
150
153
160
180
189
198
200
220
225
250
275
300
325
350
381
410
450
550

R

8MGT Stock Belt Widths
Belt Width
Code
20
30
50
85

Belt Width
(mm)
20
30
50
85

Belt Width
(in)
0.787
1.181
1.969
3.346

14mm Pitch PowerGrip GT2 Stock Belt Lengths
Pitch
Length
Designation
966-14MGT
1190-14MGT
1400-14MGT
1610-14MGT
1778-14MGT
1890-14MGT
2100-14MGT
2310-14MGT
2450-14MGT
2590-14MGT
2800-14MGT
3150-14MGT
3360-14MGT
3500-14MGT
3850-14MGT
4326-14MGT
4578-14MGT
4956-14MGT
5320-14MGT
5740-14MGT
6160-14MGT
6860-14MGT

(mm)
966
1190
1400
1610
1778
1890
2100
2310
2450
2590
2800
3150
3360
3500
3850
4326
4578
4956
5320
5740
6160
6860

(in)
38.03
46.85
55.12
63.39
70.00
74.41
82.68
90.94
96.46
101.97
110.24
124.02
132.28
137.80
151.57
170.32
180.24
195.12
209.45
225.98
242.52
270.08

No. of
Teeth
69
85
100
115
127
135
150
165
175
185
200
225
240
250
275
309
327
354
380
410
440
490

14MGT Stock Belt Widths
Belt Width
Code
40
55
85
115
170

Belt Width
(mm)
40
55
85
115
170

Belt Width
(in)
1.575
2.165
3.346
4.528
6.693

20mm Pitch PowerGrip GT2 Stock Belt Lengths
Pitch
Length
Designation
2000-20M
2500-20M
3400-20M
3800-20M
4200-20M
4600-20M
5000-20M
5200-20M
5400-20M
5600-20M
5800-20M
6000-20M
6200-20M
6400-20M
6600-20M

(mm)
2000
2500
3400
3800
4200
4600
5000
5200
5400
5600
5800
6000
6200
6400
6600

(in)
78.74
98.43
133.86
149.61
165.35
181.10
196.85
204.72
212.60
220.47
228.35
236.22
244.09
251.97
259.84

No. of
Teeth
100
125
170
190
210
230
250
260
270
280
290
300
310
320
330

20M Stock Belt Widths
Belt Width
Code
115
170
230
290
340

The Gates Rubber Company

Belt Width
(mm)
115
170
230
290
340

Belt Width
(in)
4.528
6.693
9.055
11.417
13.386

®

Basic PowerGrip Service Factors
DriveN Machine

DriveR
AC Motors: Normal Torque, Squirrel Cage, Synchronous,
Split Phase, Inverter Controlled

DC Motors: Shunt Wound Stepper Motors
The driveN machines listed below are
representative samples only. Select a
driveN machine whose load characteris- Engines: Multiple Cylinder Internal Combustion
tics most closely approximate those of
the machine being considered.
Continuous
Intermittent
Normal
Service
Service
Service
(16 - 24
(8 - 16
(Up to 8 hours
hours Daily)
hours Daily)
Daily or Seasonal)

AC Motors: High Torque, High Slip, Repulsion-Induction,
Single Phase, Series Wound, Slip Ring
DC Motors: Series Wound, Compound Wound Servo Motors
Engines: Single Cylinder Internal Combustion
Line Shafts
Clutches
Intermittent
Service
(Up to 8 hours
Daily or Seasonal)

Normal
Service
(8 - 16
hours Daily)

Continuous
Service
(16 - 24
hours Daily)

Display, Dispensing Equipment
Instrumentation
Measuring Equipment
Medical Equipment
Office, Projection Equipment

1.0

1.2

1.4

1.2

1.4

1.6

Appliances, Sweepers, Sewing Machines
Screens, Oven Screens, Drum, Conical
Woodworking Equipment (Light):
Band Saws, Drills, Lathes

1.1

1.3

1.5

1.3

1.5

1.7

Agitators for Liquids
Conveyors: Belt, Light Package
Drill Press, Lathes, Saws
Laundry Machinery
Wood Working Equipment (Heavy):
Circular Saws, Jointers, Planers

1.2

1.4

1.6

1.6

1.8

2.0

Agitators for Semi-Liquids
Compressor: Centrifugal
Conveyor Belt: Ore, Coal, Sand
Dough Mixers
Line Shafts
Machine Tools: Grinder, Shaper,
Boring Mill, Milling Machines
Paper Machinery (except Pulpers):
Presses, Punches, Shears
Printing Machinery
Pumps: Centrifugal, Gear
Screens: Revolving, Vibratory

1.3

1.5

1.7

1.6

1.8

2.0

Brick Machinery (except Pug Mills)
Conveyor: Apron, Pan, Bucket, Elevator
Extractors, Washers
Fans, Centrifugal Blowers
Generators & Exciters
Hoists
Rubber Calender, Mills, Extruders

1.4

1.6

1.8

1.8

2.0

2.2

Centrifuges
Screw Conveyors
Hammer Mills
Paper Pulpers
Textile Machinery

1.5

1.7

1.9

1.9

2.1

2.3

Blowers: Positive Displacement,
Mine Fans
Pulverizers

1.6

1.8

2.0

2.0

2.2

2.4

Compressors: Reciprocating
Crushers: Gyratory, Jaw,
Roll Mills: Ball, Rod, Pebble, etc.
Pumps: Reciprocating
Saw Mill Equipment

1.7

1.9

2.1

2.1

2.3

2.5

These service factors are adequate for most belt drive applications. Note that service factors cannot be substituted for good engineering judgment. Service factors may be adjusted based upon an understanding of the severity of actual drive operating conditions.

Additional Service Factors
Speedup Drives
For speedup drives, add to the basic service factor the
additional factor given below.

Low Speed Drives
8mm / 14mm / 20mm Belts Only
Smaller Sprocket Speed
Up to 200 rpm
Add 0.3
201 to 400 rpm
Add 0.2
401 to 600 rpm
Add 0.1

Unusual Conditions
Additional service factors are required for unusual conditions—such as load reversal, heavy shock, plugged motor
stop, electric brake. These should be determined by a
transmission specialist.

R

Speedup
Ratio Range
1 to 1.24
1.25 to 1.74
1.75 to 2.49

Additional
Factor
none
.10
.20

The Driving Force in Power Transmission.

Speedup
Ratio Range
2.50 to 3.49
3.50 & over

Additional
Factor
.30
.40

Page 15

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

5MR-500
P.L 19.685
100 teeth

5MR-535
P.L 21.063
107 teeth

5MR-565
P.L 22.244
113 teeth

5MR-580
P.L 22.835
116 teeth

5MR-600
P.L 23.622
120 teeth

Length Factor*

5MR-450
P.L 17.716
90 teeth

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.023
1.040
1.040
1.042
1.042
1.043
1.045
1.048
1.050
1.053
1.053
1.056
1.056
1.059
1.059
1.063
1.063
1.067
1.067
1.067
1.071
1.071
1.077
1.077
1.083
1.083
1.087
1.091
1.091
1.095
1.100
1.100
1.105
1.111
1.111
1.111
1.118
1.120
1.120

5MR-425
P.L 16.732
85 teeth

1.128
1.191
1.253
1.316
1.379
1.441
1.504
1.566
1.629
1.754
1.880
2.005
2.130
2.256
2.381
2.506
2.757
2.820
3.008
3.133
3.258
3.509
3.760
4.010
4.261
2.820
1.629
3.258
1.566
3.133
1.504
1.441
1.379
1.316
1.253
2.506
1.191
2.381
2.256
4.511
2.130
4.261
2.005
3.008
4.010
1.880
3.760
1.754
3.509
1.629
3.258
1.566
1.504
3.008
1.441
1.379
2.757
1.316
1.253
2.506
3.133
2.381
1.754
3.509

5MR-405
P.L 15.945
81 teeth

18
19
20
21
22
23
24
25
26
28
30
32
34
36
38
40
44
45
48
50
52
56
60
64
68
45
26
52
25
50
24
23
22
21
20
40
19
38
36
72
34
68
32
48
64
30
60
28
56
26
52
25
24
48
23
22
44
21
20
40
50
38
28
56

Speed
Ratio

5MR-400
P.L 15.748
80 teeth

1.128
1.191
1.253
1.316
1.379
1.441
1.504
1.566
1.629
1.754
1.880
2.005
2.130
2.256
2.381
2.506
2.757
2.820
3.008
3.133
3.258
3.509
3.760
4.010
4.261
2.757
1.566
3.133
1.504
3.008
1.441
1.379
1.316
1.253
1.191
2.381
1.128
2.256
2.130
4.261
2.005
4.010
1.880
2.820
3.760
1.754
3.509
1.629
3.258
1.504
3.008
1.441
1.379
2.757
1.316
1.253
2.506
1.191
1.128
2.256
2.820
2.130
1.566
3.133

Pitch
Diameter
(Inches)

5MR-375
P.L 14.764
75 teeth

18
19
20
21
22
23
24
25
26
28
30
32
34
36
38
40
44
45
48
50
52
56
60
64
68
44
25
50
24
48
23
22
21
20
19
38
18
36
34
68
32
64
30
45
60
28
56
26
52
24
48
23
22
44
21
20
40
19
18
36
45
34
25
50

No.
of
Grooves

5MR-355
P.L 13.976
71 teeth

Pitch
Diameter
(Inches)

5MR-300
P.L 11.811
60 teeth

No.
of
Grooves

Center Distance, Inches

4.13
4.03
3.94
3.84
3.74
3.64
3.54
3.45
3.35
3.15
2.95
2.76
2.56

5.22
5.12
5.02
4.92
4.82
4.73
4.63
4.53
4.43
4.23
4.04
3.84
3.64
3.45
3.25
3.05

5.61
5.51
5.41
5.31
5.21
5.12
5.02
4.92
4.82
4.62
4.43
4.23
4.03
3.84
3.64
3.44

6.10
6.00
5.91
5.81
5.71
5.61
5.51
5.42
5.32
5.12
4.92
4.73
4.53
4.33
4.13
3.94
3.54
3.45

6.20
6.10
6.00
5.90
5.80
5.71
5.61
5.51
5.41
5.21
5.02
4.82
4.62
4.43
4.23
4.03
3.64
3.54

6.59
6.49
6.40
6.30
6.20
6.10
6.00
5.91
5.81
5.61
5.41
5.22
5.02
4.82
4.62
4.43
4.03
3.94
3.64

7.09
6.99
6.89
6.79
6.69
6.60
6.50
6.40
6.30
6.10
5.91
5.71
5.51
5.32
5.12
4.92
4.53
4.43
4.14
3.94
3.74

8.07
7.97
7.87
7.77
7.67
7.58
7.48
7.38
7.28
7.08
6.89
6.69
6.49
6.30
6.10
5.90
5.51
5.41
5.12
4.92
4.72
4.33

8.76
8.66
8.56
8.46
8.36
8.27
8.17
8.07
7.97
7.77
7.58
7.38
7.18
6.99
6.79
6.59
6.20
6.10
5.81
5.61
5.41
5.02
4.62

9.35
9.25
9.15
9.05
8.95
8.86
8.76
8.66
8.56
8.36
8.17
7.97
7.77
7.58
7.38
7.18
6.79
6.69
6.40
6.20
6.00
5.61
5.21
4.82

4.87

3.49
5.37

3.59
5.46

3.98
5.86

4.58

4.97

5.46

5.56

4.68
4.78
4.87
4.97
5.07
3.15
5.17
3.35
3.54

5.07
5.17
5.26
5.36
5.46
3.54
5.56
3.74
3.93

5.56
5.66
5.76
5.86
5.96
4.04
6.05
4.23
4.43

5.66
5.76
5.85
5.95
6.05
4.13
6.15
4.33
4.52

5.95
3.54
6.05
6.15
6.25
6.35
6.45
4.53
6.54
4.72
4.92

4.48
6.35
3.84
6.45
4.04
6.55
6.65
6.74
6.84
6.94
5.02
7.04
5.22
5.41

5.46
7.33
4.82
7.43
5.02
7.53
7.63
7.72
7.82
7.92
6.00
8.02
6.20
6.39

6.15
8.02
5.51
8.12
5.71
8.22
8.32
8.41
8.51
8.61
6.69
8.71
6.89
7.08

6.74
8.61
6.10
8.71
6.30
8.81
8.91
9.00
9.10
9.20
7.28
9.30
7.48
7.67

9.64
9.54
9.45
9.35
9.25
9.15
9.05
8.96
8.86
8.66
8.46
8.27
8.07
7.87
7.67
7.48
7.08
6.99
6.69
6.49
6.30
5.90
5.51
5.12
4.72
7.03
8.91
6.40
9.00
6.59
9.10
9.20
9.30
9.40
9.50
7.58
9.59
7.77
7.97

2.66

3.74

4.13

4.63

4.72

5.12

5.61

6.59

7.28

2.85

3.94

4.33

4.82
3.30

4.92
3.39

5.31
3.79

5.81
4.28

6.79
5.26

3.05

4.14

4.53

5.02

5.12

5.51

6.01

3.25

4.33

4.72

5.22

5.31

5.71

6.20

3.44

4.53

4.92

5.41

5.51

5.90

3.54
3.64

4.63
4.73

5.02
5.12

3.74
3.84

4.82
4.92

3.94
4.03

5.02
5.12
3.25

5.21
5.31
3.24
5.41
5.51
3.64

5.51
5.61
3.34
5.71
5.81
3.74
5.91
6.00
4.13

3.30

3.44
4.38

3.84
4.77

4.33
5.27

5.61
5.71
3.44
5.80
5.90
3.83
6.00
6.10
4.23
3.29
4.43
5.36

6.00
6.10
3.84
6.20
6.30
4.23
6.40
6.49
4.62
3.69
4.82
5.76

6.40
3.94
6.50
6.60
4.33
6.69
6.79
4.72
6.89
6.99
5.12
4.18
5.32
6.25
3.64

6.99
4.13
7.18
4.52
7.38
4.92
7.48
7.58
5.31
7.67
7.77
5.71
7.87
7.97
6.10
5.16
6.30
7.23
4.62

7.48
5.95
4.43
7.68
4.82
7.87
5.21
8.07
5.61
8.17
8.27
6.00
8.36
8.46
6.40
8.56
8.66
6.79
5.85
6.99
7.92
5.31

7.87
4.62
8.07
6.54
5.02
8.27
5.41
8.46
5.80
8.66
6.20
8.76
8.86
6.59
8.95
9.05
6.99
9.15
9.25
7.38
6.44
7.58
8.51
5.90

8.17
4.92
8.36
6.84
5.31
8.56
5.70
8.76
6.10
8.95
6.49
9.05
9.15
6.89
9.25
9.35
7.28
9.45
9.54
7.67
6.74
7.87
8.81
6.20

10.04
9.94
9.84
9.74
9.64
9.55
9.45
9.35
9.25
9.05
8.86
8.66
8.46
8.27
8.07
7.87
7.48
7.38
7.09
6.89
6.69
6.30
5.90
5.51
5.12
7.43
9.30
6.79
9.40
6.99
9.50
9.60
9.69
9.79
9.89
7.97
9.99
8.17
8.37
4.92
8.56
5.31
8.76
7.23
5.71
8.96
6.10
9.15
6.49
9.35
6.89
9.45
9.55
7.28
9.64
9.74
7.68
9.84
9.94
8.07
7.13
8.27
9.20
6.59

3.40

4.48

3.49
3.59
3.69
3.79
3.89
3.99

0.77

0.81

0.83

0.84

0.85

0.86

0.88

0.90

0.92

0.94

0.95

0.95

4.08

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 16

R

The Gates Rubber Company

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

5MR-625
P.L 24.606
125 teeth

5MR-650
P.L 25.590
130 teeth

5MR-700
P.L 27.559
140 teeth

5MR-750
P.L 29.528
150 teeth

5MR-800
P.L 31.496
160 teeth

5MR-850
P.L 33.465
170 teeth

5MR-900
P.L 35.433
180 teeth

5MR-1000
P.L 39.370
200 teeth

5MR-1150
P.L 45.276
230 teeth

5MR-1300
P.L 51.181
260 teeth

5MR-1450
P.L 57.087
290 teeth

5MR-1600
P.L 62.992
320 teeth

5MR-1720
P.L 67.716
344 teeth

5MR-2100
P.L 82.677
420 teeth

Center Distance, Inches
Speed
Ratio

10.53
10.43
10.34
10.24
10.14
10.04
9.94
9.85
9.75
9.55
9.35
9.16
8.96
8.76
8.56
8.37
7.97
7.88
7.58
7.38
7.19
6.79
6.40
6.01
5.61
7.92
9.80
7.29
9.89
7.48
9.99
10.09
10.19
10.29
10.39
8.47
10.48
8.66
8.86
5.41
9.06
5.81
9.25
7.73
6.20
9.45
6.59
9.65
6.99
9.84
7.38
9.94
10.04
7.78
10.14
10.24
8.17
10.34
10.43
8.56
7.63
8.76
9.70
7.09

11.02
10.92
10.83
10.73
10.63
10.53
10.43
10.34
10.24
10.04
9.84
9.65
9.45
9.25
9.05
8.86
8.46
8.37
8.07
7.87
7.68
7.28
6.89
6.50
6.10
8.41
10.29
7.78
10.38
7.97
10.48
10.58
10.68
10.78
10.88
8.96
10.97
9.15
9.35
5.90
9.55
6.30
9.74
8.22
6.69
9.94
7.08
10.14
7.48
10.33
7.87
10.43
10.53
8.27
10.63
10.73
8.66
10.83
10.92
9.05
8.12
9.25
10.19
7.58

12.01
11.91
11.81
11.71
11.61
11.52
11.42
11.32
11.22
11.02
10.83
10.63
10.43
10.24
10.04
9.84
9.45
9.35
9.06
8.86
8.66
8.27
7.87
7.48
7.09
9.40
11.27
8.76
11.37
8.96
11.47
11.57
11.66
11.76
11.86
9.94
11.96
10.14
10.34
6.89
10.53
7.28
10.73
9.20
7.68
10.93
8.07
11.12
8.46
11.32
8.86
11.42
11.52
9.25
11.61
11.71
9.65
11.81
11.91
10.04
9.10
10.24
11.17
8.56

12.99
12.89
12.80
12.70
12.60
12.50
12.40
12.31
12.21
12.01
11.81
11.62
11.42
11.22
11.02
10.83
10.43
10.34
10.04
9.84
9.65
9.25
8.86
8.47
8.07
10.38
12.26
9.75
12.35
9.94
12.45
12.55
12.65
12.75
12.85
10.93
12.94
11.12
11.32
7.87
11.52
8.27
11.71
10.19
8.66
11.91
9.06
12.11
9.45
12.30
9.84
12.40
12.50
10.24
12.60
12.70
10.63
12.80
12.89
11.02
10.09
11.22
12.16
9.55

13.98
13.88
13.78
13.68
13.58
13.49
13.39
13.29
13.19
12.99
12.80
12.60
12.40
12.21
12.01
11.81
11.42
11.32
11.03
10.83
10.63
10.24
9.84
9.45
9.06
11.37
13.24
10.73
13.34
10.93
13.44
13.54
13.63
13.73
13.83
11.91
13.93
12.11
12.31
8.86
12.50
9.25
12.70
11.17
9.65
12.90
10.04
13.09
10.43
13.29
10.83
13.39
13.49
11.22
13.58
13.68
11.62
13.78
13.88
12.01
11.07
12.21
13.14
10.53

14.96
14.86
14.76
14.66
14.56
14.47
14.37
14.27
14.17
13.97
13.78
13.58
13.38
13.19
12.99
12.79
12.40
12.30
12.01
11.81
11.61
11.22
10.82
10.43
10.04
12.35
14.22
11.71
14.32
11.91
14.42
14.52
14.61
14.71
14.81
12.89
14.91
13.09
13.29
9.84
13.48
10.23
13.68
12.15
10.63
13.88
11.02
14.07
11.41
14.27
11.81
14.37
14.47
12.20
14.56
14.66
12.60
14.76
14.86
12.99
12.05
13.19
14.12
11.51

15.94
15.84
15.75
15.65
15.55
15.45
15.35
15.26
15.16
14.96
14.76
14.57
14.37
14.17
13.97
13.78
13.38
13.29
12.99
12.79
12.60
12.20
11.81
11.42
11.02
13.33
15.21
12.70
15.30
12.89
15.40
15.50
15.60
15.70
15.80
13.88
15.89
14.07
14.27
10.82
14.47
11.22
14.66
13.14
11.61
14.86
12.01
15.06
12.40
15.25
12.79
15.35
15.45
13.19
15.55
15.65
13.58
15.75
15.84
13.97
13.04
14.17
15.11
12.50

17.91
17.81
17.72
17.62
17.52
17.42
17.32
17.23
17.13
16.93
16.73
16.54
16.34
16.14
15.94
15.75
15.35
15.26
14.96
14.76
14.57
14.17
13.78
13.39
12.99
15.30
17.18
14.67
17.27
14.86
17.37
17.47
17.57
17.67
17.77
15.85
17.86
16.04
16.24
12.79
16.44
13.19
16.63
15.11
13.58
16.83
13.98
17.03
14.37
17.22
14.76
17.32
17.42
15.16
17.52
17.62
15.55
17.72
17.81
15.94
15.01
16.14
17.08
14.47

20.87
20.77
20.67
20.57
20.47
20.38
20.28
20.18
20.08
19.88
19.69
19.49
19.29
19.10
18.90
18.70
18.31
18.21
17.92
17.72
17.52
17.13
16.73
16.34
15.95
18.26
20.13
17.62
20.23
17.82
20.33
20.43
20.52
20.62
20.72
18.80
20.82
19.00
19.20
15.75
19.39
16.14
19.59
18.06
16.54
19.79
16.93
19.98
17.32
20.18
17.72
20.28
20.38
18.11
20.47
20.57
18.51
20.67
20.77
18.90
17.96
19.10
20.03
17.42

23.82
23.72
23.62
23.52
23.42
23.33
23.23
23.13
23.03
22.83
22.64
22.44
22.24
22.05
21.85
21.65
21.26
21.16
20.87
20.67
20.47
20.08
19.68
19.29
18.90
21.21
23.08
20.57
23.18
20.77
23.28
23.38
23.47
23.57
23.67
21.75
23.77
21.95
22.15
18.70
22.34
19.09
22.54
21.01
19.49
22.74
19.88
22.93
20.27
23.13
20.67
23.23
23.33
21.06
23.42
23.52
21.46
23.62
23.72
21.85
20.91
22.05
22.98
20.37

26.77
26.67
26.58
26.48
26.38
26.28
26.18
26.09
25.99
25.79
25.59
25.40
25.20
25.00
24.80
24.61
24.21
24.12
23.82
23.62
23.43
23.03
22.64
22.25
21.85
24.16
26.04
23.53
26.13
23.72
26.23
26.33
26.43
26.53
26.63
24.71
26.72
24.90
25.10
21.66
25.30
22.05
25.49
23.97
22.44
25.69
22.84
25.89
23.23
26.08
23.62
26.18
26.28
24.02
26.38
26.48
24.41
26.58
26.67
24.80
23.87
25.00
25.94
23.33

29.72
29.62
29.53
29.43
29.33
29.23
29.13
29.04
28.94
28.74
28.54
28.35
28.15
27.95
27.75
27.56
27.16
27.07
26.77
26.57
26.38
25.98
25.59
25.20
24.80
27.11
28.99
26.48
29.08
26.67
29.18
29.28
29.38
29.48
29.58
27.66
29.67
27.85
28.05
24.61
28.25
25.00
28.44
26.92
25.39
28.64
25.79
28.84
26.18
29.03
26.57
29.13
29.23
26.97
29.33
29.43
27.36
29.53
29.62
27.75
26.82
27.95
28.89
26.28

32.09
31.99
31.89
31.79
31.69
31.60
31.50
31.40
31.30
31.10
30.91
30.71
30.51
30.32
30.12
29.92
29.53
29.43
29.14
28.94
28.74
28.35
27.95
27.56
27.17
29.48
31.35
28.84
31.45
29.04
31.55
31.65
31.74
31.84
31.94
30.02
32.04
30.22
30.42
26.97
30.61
27.36
30.81
29.28
27.76
31.01
28.15
31.20
28.54
31.40
28.94
31.50
31.60
29.33
31.69
31.79
29.73
31.89
31.99
30.12
29.18
30.32
31.25
28.64

39.57
39.47
39.37
39.27
39.17
39.08
38.98
38.88
38.78
38.58
38.39
38.19
37.99
37.80
37.60
37.40
37.01
36.91
36.62
36.42
36.22
35.83
35.43
35.04
34.65
36.96
38.83
36.32
38.93
36.52
39.03
39.13
39.22
39.32
39.42
37.50
39.52
37.70
37.90
34.45
38.09
34.84
38.29
36.76
35.24
38.49
35.63
38.68
36.02
38.88
36.42
38.98
39.08
36.81
39.17
39.27
37.21
39.37
39.47
37.60
36.66
37.80
38.73
36.12

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.023
1.040
1.040
1.042
1.042
1.043
1.045
1.048
1.050
1.053
1.053
1.056
1.056
1.059
1.059
1.063
1.063
1.067
1.067
1.067
1.071
1.071
1.077
1.077
1.083
1.083
1.087
1.091
1.091
1.095
1.100
1.100
1.105
1.111
1.111
1.111
1.118
1.120
1.120

0.97

0.98

1.00

1.01

1.03

1.05

1.06

1.09

1.13

1.16

1.19

1.22

1.24

1.29

No. of
grooves

No. of
grooves

18
19
20
21
22
23
24
25
26
28
30
32
34
36
38
40
44
45
48
50
52
56
60
64
68
44
25
50
24
48
23
22
21
20
19
38
18
36
34
68
32
64
30
45
60
28
56
26
52
24
48
23
22
44
21
20
40
19
18
36
45
34
25
50

18
19
20
21
22
23
24
25
26
28
30
32
34
36
38
40
44
45
48
50
52
56
60
64
68
45
26
52
25
50
24
23
22
21
20
40
19
38
36
72
34
68
32
48
64
30
60
28
56
26
52
25
24
48
23
22
44
21
20
40
50
38
28
56

*This length correction factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 17

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

5MR-565
P.L 22.244
113 teeth

5MR-580
P.L 22.835
116 teeth

5MR-600
P.L 23.622
120 teeth

2.56

3.64

4.03
3.19

4.53
3.69

4.62
3.78

5.02
4.18

5.51
4.67

6.49
5.65

3.49
2.75

4.58
3.84

4.97
4.23

5.46
4.72

5.56
4.82

5.95
5.21

6.45
5.71

7.43
6.69

8.12
7.38

3.59

4.68

5.07

5.56

3.69
2.95

4.77
4.04

5.16
4.43

5.66
4.92

5.66
3.34
5.75
5.02

6.05
3.73
6.15
5.41

6.55
4.23
6.64
5.91

7.53
5.21
7.62
6.89

3.79
3.15

4.87
4.23

5.26
4.62

5.76
5.12

5.85
5.21

6.25
5.61

6.74
6.10

3.89

4.97
2.95
5.07
4.43

5.36
3.34
5.46
4.82

5.86
3.84
5.95
5.31

5.95
3.93
6.05
5.41

3.58
6.35
4.33
6.44
5.80

3.34

3.73

4.23

4.32

4.72

4.08
6.84
4.82
6.94
6.30
3.73
5.22

7.72
7.08
4.32
5.06
7.82
5.80
7.92
7.28
4.71
6.20

8.22
5.90
8.31
7.58
4.62
8.41
7.77
5.01
5.75
8.51
6.49
8.61
7.97
5.41
6.89

3.54

4.63

5.02

5.51

5.61

3.64
3.74
3.19
2.65

3.54
4.72
4.82
4.28
3.74

3.29
3.93
5.11
5.21
4.67
4.13

3.78
4.43
5.61
5.71
5.17
4.62
3.54

3.88
4.52
5.71
5.80
5.26
4.72
3.63

6.00
3.63
4.27
4.92
6.10
6.20
5.66
5.11
4.03

6.50
4.13
4.77
5.41
6.60
6.69
6.15
5.61
4.52

7.48
5.11
5.75
6.39
7.58
7.67
7.13
6.59
5.50
4.42

8.17
5.80
6.44
7.08
8.27
8.36
7.82
7.28
6.19
5.11

3.84
2.85

4.92
3.94

5.31
4.33

5.81
4.82

5.90
4.92

6.30
5.31

6.79
5.81

7.77
6.79

3.39
3.93
3.05

4.48
5.02
3.04
4.13

4.87
5.41
3.43
4.52

5.36
5.90
3.93
5.02

5.46
6.00
4.03
5.11

5.85
6.39
4.42
5.51

6.35
6.89
4.92
6.00

3.59

4.67

5.06

5.56

5.65

6.05

3.69
3.24

4.77
4.33
3.44
2.99

5.16
4.72
3.83
3.38

5.66
5.21
4.32
3.88
3.43

5.75
5.31
4.42
3.97
3.53

6.15
5.70
4.82
4.37
3.92

6.55
3.87
6.64
6.20
5.31
4.87
4.42

7.33
7.87
5.90
6.98
4.11
7.53
4.86
7.62
7.18
6.29
5.85
5.40
4.51

3.79

4.87

2.55
3.44

3.63
4.53

5.26
3.13
4.03
4.92

5.76
3.63
4.52
5.41

5.85
3.72
4.62
5.51

6.25
4.12
5.01
5.90

3.88
3.09

4.97
4.18

5.36
4.57

5.86
5.07

5.95
5.16

6.35
5.56

6.74
4.62
5.51
6.40
3.92
6.84
6.05

2.74

3.83

4.22

4.72

4.81

5.21

5.71

7.72
5.60
6.49
7.38
4.90
7.82
7.03
4.21
6.69

3.64

3.14
4.72

3.53
5.11

3.29

4.38

4.77

4.02
5.61
3.33
5.26

4.12
5.70
3.42
5.36

4.52
6.10
3.82
5.75

5.01
6.59
4.32
6.25

0.77

0.81

0.83

0.84

0.85

0.86

0.88

3.98
3.34

5MR-535
P.L 21.063
107 teeth

5MR-500
P.L 19.685
100 teeth

Length Factor*

5MR-450
P.L 17.716
90 teeth

1.125
1.125
1.125
1.130
1.133
1.133
1.136
1.136
1.143
1.143
1.143
1.150
1.154
1.154
1.156
1.158
1.158
1.167
1.167
1.167
1.176
1.176
1.182
1.182
1.184
1.188
1.190
1.200
1.200
1.200
1.200
1.200
1.200
1.211
1.214
1.214
1.217
1.222
1.222
1.231
1.231
1.238
1.244
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.263
1.263
1.267
1.273
1.273
1.278
1.280
1.280
1.286
1.286
1.294
1.300
1.300
1.304

5MR-425
P.L 16.732
85 teeth

2.256
2.820
4.511
1.629
2.130
4.261
1.566
3.133
1.504
2.005
4.010
1.441
1.880
3.760
3.258
1.379
2.757
1.316
1.754
3.509
2.506
5.013
1.629
3.258
2.820
2.381
1.566
1.504
1.880
2.256
3.008
3.760
4.511
1.441
2.130
4.261
1.754
1.379
2.757
2.005
4.010
1.629
3.509
1.566
1.880
2.506
2.820
3.133
3.760
5.013
1.504
3.008
2.381
1.754
3.509
1.441
2.005
4.010
2.256
4.511
2.757
1.629
3.258
1.880

5MR-405
P.L 15.945
81 teeth

Speed
Ratio

5MR-400
P.L 15.748
80 teeth

36
45
72
26
34
68
25
50
24
32
64
23
30
60
52
22
44
21
28
56
40
80
26
52
45
38
25
24
30
36
48
60
72
23
34
68
28
22
44
32
64
26
56
25
30
40
45
50
60
80
24
48
38
28
56
23
32
64
36
72
44
26
52
30

Pitch
Diameter
(Inches)

5MR-375
P.L 14.764
75 teeth

2.005
2.506
4.010
1.441
1.880
3.760
1.379
2.757
1.316
1.754
3.509
1.253
1.629
3.258
2.820
1.191
2.381
1.128
1.504
3.008
2.130
4.261
1.379
2.757
2.381
2.005
1.316
1.253
1.566
1.880
2.506
3.133
3.760
1.191
1.754
3.509
1.441
1.128
2.256
1.629
3.258
1.316
2.820
1.253
1.504
2.005
2.256
2.506
3.008
4.010
1.191
2.381
1.880
1.379
2.757
1.128
1.566
3.133
1.754
3.509
2.130
1.253
2.506
1.441

No.
of
Grooves

5MR-355
P.L 13.976
71 teeth

32
40
64
23
30
60
22
44
21
28
56
20
26
52
45
19
38
18
24
48
34
68
22
44
38
32
21
20
25
30
40
50
60
19
28
56
23
18
36
26
52
21
45
20
24
32
36
40
48
64
19
38
30
22
44
18
25
50
28
56
34
20
40
23

Pitch
Diameter
(Inches)

5MR-300
P.L 11.811
60 teeth

No.
of
Grooves

Center Distance, Inches

7.18
6.35

7.77
6.94
4.42
8.71
7.97
4.81
8.81
6.49
8.90
8.17
5.21
9.00
8.36
5.60
6.34
9.10
7.08
9.20
8.56
6.00
7.48

8.07
7.23
4.72
9.00
8.26
5.11
9.10
6.79
9.20
8.46
5.50
9.30
8.66
5.90
6.64
9.40
7.38
9.50
8.86
6.29
7.77

8.46
7.63
5.11
9.40
8.66
5.50
9.50
7.18
9.59
8.86
5.90
9.69
9.05
6.29
7.03
9.79
7.77
9.89
9.25
6.69
8.17

8.46
7.48
4.41
8.02
8.56
6.59
7.67
4.81
8.22
5.55
8.31
7.87
6.98
6.54
6.09
5.20

8.76
6.39
7.03
7.67
8.86
8.95
8.41
7.87
6.78
5.70
4.61
9.05
8.07
5.00
8.61
9.15
7.18
8.26
5.40
8.81
6.14
8.90
8.46
7.57
7.13
6.68
5.79

9.05
6.69
7.33
7.97
9.15
9.25
8.71
8.16
7.08
5.99
4.90
9.35
8.36
5.30
8.90
9.45
7.47
8.56
5.69
9.10
6.43
9.20
8.76
7.87
7.42
6.98
6.09

5.99
7.57
5.30
7.23

8.41
6.29
7.18
8.07
5.60
8.51
7.72
4.90
7.38
4.20
6.68
8.26
5.99
7.92

9.00
6.88
7.77
8.66
6.19
9.10
8.31
5.49
7.97
4.79
7.28
8.85
6.58
8.51

9.30
7.18
8.06
8.95
6.48
9.40
8.61
5.79
8.26
5.09
7.57
9.15
6.88
8.80

9.45
7.08
7.72
8.36
9.55
9.64
9.10
8.56
7.48
6.39
5.30
9.74
8.76
5.70
9.30
9.84
7.87
8.95
6.09
9.50
6.83
9.59
9.15
8.26
7.82
7.37
6.48
4.70
9.69
7.57
8.46
9.35
6.88
9.79
9.00
6.18
8.66
5.49
7.97
9.54
7.27
9.20

0.90

0.92

0.94

0.95

0.95

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 18

R

The Gates Rubber Company

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

5MR-625
P.L 24.606
125 teeth

5MR-650
P.L 25.590
130 teeth

5MR-700
P.L 27.559
140 teeth

5MR-750
P.L 29.528
150 teeth

5MR-800
P.L 31.496
160 teeth

5MR-850
P.L 33.465
170 teeth

5MR-900
P.L 35.433
180 teeth

5MR-1000
P.L 39.370
200 teeth

5MR-1150
P.L 45.276
230 teeth

5MR-1300
P.L 51.181
260 teeth

5MR-1450
P.L 57.087
290 teeth

5MR-1600
P.L 62.992
320 teeth

5MR-1720
P.L 67.716
344 teeth

5MR-2100
P.L 82.677
420 teeth

Center Distance, Inches
Speed
Ratio

8.96
8.12
5.61
9.89
9.15
6.00
9.99
7.68
10.09
9.35
6.39
10.19
9.55
6.79
7.53
10.29
8.27
10.39
9.75
7.18
8.66
5.01
9.94
7.58
8.22
8.86
10.04
10.14
9.60
9.05
7.97
6.88
5.80
10.24
9.25
6.19
9.79
10.34
8.36
9.45
6.59
9.99
7.33
10.09
9.65
8.76
8.31
7.87
6.98
5.19
10.19
8.07
8.95
9.84
7.37
10.29
9.50
6.68
9.15
5.99
8.46
10.04
7.77
9.69

9.45
8.61
6.10
10.38
9.64
6.49
10.48
8.17
10.58
9.84
6.89
10.68
10.04
7.28
8.02
10.78
8.76
10.88
10.24
7.67
9.15
5.50
10.43
8.07
8.71
9.35
10.53
10.63
10.09
9.54
8.46
7.37
6.29
10.73
9.74
6.68
10.28
10.83
8.85
9.94
7.08
10.48
7.82
10.58
10.14
9.25
8.80
8.36
7.47
5.69
10.68
8.56
9.45
10.33
7.86
10.78
9.99
7.17
9.64
6.48
8.95
10.53
8.26
10.18

10.43
9.60
7.08
11.37
10.63
7.48
11.47
9.15
11.56
10.83
7.87
11.66
11.02
8.26
9.00
11.76
9.74
11.86
11.22
8.66
10.14
6.49
11.42
9.05
9.69
10.33
11.52
11.61
11.07
10.53
9.45
8.36
7.27
11.71
10.73
7.67
11.27
11.81
9.84
10.92
8.06
11.47
8.80
11.56
11.12
10.23
9.79
9.35
8.46
6.67
11.66
9.54
10.43
11.32
8.85
11.76
10.97
8.16
10.63
7.46
9.94
11.51
9.25
11.17

11.42
10.58
8.07
12.35
11.61
8.46
12.45
10.14
12.55
11.81
8.86
12.65
12.01
9.25
9.99
12.75
10.73
12.85
12.21
9.64
11.12
7.47
12.40
10.04
10.68
11.32
12.50
12.60
12.06
11.52
10.43
9.35
8.26
12.70
11.71
8.65
12.25
12.80
10.82
11.91
9.05
12.45
9.79
12.55
12.11
11.22
10.77
10.33
9.44
7.66
12.65
10.53
11.42
12.30
9.84
12.75
11.96
9.14
11.61
8.45
10.92
12.50
10.23
12.15

12.40
11.57
9.05
13.34
12.60
9.45
13.44
11.12
13.53
12.80
9.84
13.63
12.99
10.23
10.97
13.73
11.71
13.83
13.19
10.63
12.11
8.46
13.39
11.02
11.66
12.30
13.49
13.58
13.04
12.50
11.42
10.33
9.25
13.68
12.70
9.64
13.24
13.78
11.81
12.89
10.03
13.44
10.77
13.54
13.09
12.20
11.76
11.32
10.43
8.65
13.63
11.51
12.40
13.29
10.82
13.73
12.94
10.13
12.60
9.44
11.91
13.49
11.22
13.14

13.38
12.55
10.03
14.32
13.58
10.43
14.42
12.10
14.51
13.78
10.82
14.61
13.97
11.22
11.95
14.71
12.69
14.81
14.17
11.61
13.09
9.44
14.37
12.00
12.64
13.28
14.47
14.56
14.02
13.48
12.40
11.31
10.23
14.66
13.68
10.62
14.22
14.76
12.79
13.87
11.02
14.42
11.75
14.52
14.07
13.18
12.74
12.30
11.41
9.63
14.61
12.49
13.38
14.27
11.80
14.71
13.92
11.11
13.58
10.42
12.89
14.47
12.20
14.12

14.37
13.53
11.02
15.30
14.57
11.41
15.40
13.09
15.50
14.76
11.81
15.60
14.96
12.20
12.94
15.70
13.68
15.80
15.16
12.59
14.07
10.42
15.35
12.99
13.63
14.27
15.45
15.55
15.01
14.47
13.38
12.30
11.21
15.65
14.66
11.61
15.20
15.75
13.78
14.86
12.00
15.40
12.74
15.50
15.06
14.17
13.73
13.28
12.39
10.62
15.60
13.48
14.37
15.25
12.79
15.70
14.91
12.10
14.56
11.41
13.87
15.45
13.18
15.11

16.34
15.50
12.99
17.27
16.54
13.38
17.37
15.06
17.47
16.73
13.78
17.57
16.93
14.17
14.91
17.67
15.65
17.77
17.13
14.56
16.04
12.40
17.32
14.96
15.60
16.24
17.42
17.52
16.98
16.44
15.35
14.27
13.18
17.62
16.63
13.58
17.17
17.72
15.75
16.83
13.97
17.37
14.71
17.47
17.03
16.14
15.70
15.25
14.36
12.59
17.57
15.45
16.34
17.22
14.76
17.67
16.88
14.07
16.53
13.38
15.84
17.42
15.15
17.08

19.29
18.46
15.95
20.23
19.49
16.34
20.33
18.01
20.42
19.69
16.73
20.52
19.88
17.13
17.87
20.62
18.60
20.72
20.08
17.52
19.00
15.35
20.28
17.91
18.55
19.19
20.38
20.47
19.93
19.39
18.31
17.22
16.14
20.57
19.59
16.53
20.13
20.67
18.70
19.78
16.93
20.33
17.67
20.43
19.98
19.10
18.65
18.21
17.32
15.55
20.52
18.40
19.29
20.18
17.71
20.62
19.83
17.02
19.49
16.33
18.80
20.38
18.11
20.03

22.24
21.41
18.90
23.18
22.44
19.29
23.28
20.96
23.37
22.64
19.68
23.47
22.83
20.08
20.82
23.57
21.55
23.67
23.03
20.47
21.95
18.30
23.23
20.86
21.50
22.14
23.33
23.42
22.88
22.34
21.26
20.17
19.09
23.52
22.54
19.48
23.08
23.62
21.65
22.74
19.88
23.28
20.62
23.38
22.93
22.05
21.60
21.16
20.27
18.50
23.47
21.36
22.24
23.13
20.67
23.57
22.78
19.98
22.44
19.28
21.75
23.33
21.06
22.98

25.20
24.36
21.85
26.13
25.40
22.24
26.23
23.92
26.33
25.59
22.64
26.43
25.79
23.03
23.77
26.53
24.51
26.63
25.99
23.43
24.90
21.26
26.18
23.82
24.46
25.10
26.28
26.38
25.84
25.30
24.21
23.13
22.05
26.48
25.49
22.44
26.04
26.58
24.61
25.69
22.83
26.23
23.57
26.33
25.89
25.00
24.56
24.11
23.23
21.45
26.43
24.31
25.20
26.08
23.62
26.53
25.74
22.93
25.39
22.24
24.70
26.28
24.02
25.94

28.15
27.31
24.80
29.08
28.35
25.19
29.18
26.87
29.28
28.54
25.59
29.38
28.74
25.98
26.72
29.48
27.46
29.58
28.94
26.38
27.85
24.21
29.13
26.77
27.41
28.05
29.23
29.33
28.79
28.25
27.16
26.08
25.00
29.43
28.44
25.39
28.99
29.53
27.56
28.64
25.78
29.18
26.52
29.28
28.84
27.95
27.51
27.06
26.18
24.40
29.38
27.26
28.15
29.03
26.57
29.48
28.69
25.88
28.34
25.19
27.65
29.23
26.97
28.89

30.51
29.68
27.17
31.45
30.71
27.56
31.55
29.23
31.65
30.91
27.95
31.74
31.10
28.35
29.09
31.84
29.82
31.94
31.30
28.74
30.22
26.57
31.50
29.13
29.77
30.41
31.60
31.69
31.15
30.61
29.53
28.44
27.36
31.79
30.81
27.75
31.35
31.89
29.92
31.01
28.15
31.55
28.89
31.65
31.20
30.32
29.87
29.43
28.54
26.77
31.74
29.63
30.51
31.40
28.94
31.84
31.05
28.25
30.71
27.56
30.02
31.60
29.33
31.25

37.99
37.16
34.65
38.93
38.19
35.04
39.03
36.71
39.13
38.39
35.43
39.22
38.58
35.83
36.57
39.32
37.30
39.42
38.78
36.22
37.70
34.05
38.98
36.61
37.25
37.89
39.08
39.17
38.63
38.09
37.01
35.92
34.84
39.27
38.29
35.24
38.83
39.37
37.40
38.49
35.63
39.03
36.37
39.13
38.68
37.80
37.35
36.91
36.02
34.25
39.22
37.11
37.99
38.88
36.42
39.32
38.53
35.73
38.19
35.04
37.50
39.08
36.81
38.73

1.125
1.125
1.125
1.130
1.133
1.133
1.136
1.136
1.143
1.143
1.143
1.150
1.154
1.154
1.156
1.158
1.158
1.167
1.167
1.167
1.176
1.176
1.182
1.182
1.184
1.188
1.190
1.200
1.200
1.200
1.200
1.200
1.200
1.211
1.214
1.214
1.217
1.222
1.222
1.231
1.231
1.238
1.244
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.263
1.263
1.267
1.273
1.273
1.278
1.280
1.280
1.286
1.286
1.294
1.300
1.300
1.304

0.97

0.98

1.00

1.01

1.03

1.05

1.06

1.09

1.13

1.16

1.19

1.22

1.24

1.29

No. of
grooves

No. of
grooves

32
40
64
23
30
60
22
44
21
28
56
20
26
52
45
19
38
18
24
48
34
68
22
44
38
32
21
20
25
30
40
50
60
19
28
56
23
18
36
26
52
21
45
20
24
32
36
40
48
64
19
38
30
22
44
18
25
50
28
56
34
20
40
23

36
45
72
26
34
68
25
50
24
32
64
23
30
60
52
22
44
21
28
56
40
80
26
52
45
38
25
24
30
36
48
60
72
23
34
68
28
22
44
32
64
26
56
25
30
40
45
50
60
80
24
48
38
28
56
23
32
64
36
72
44
26
52
30

*This length correction factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 19

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

5MR-500
P.L 19.685
100 teeth

5MR-535
P.L 21.063
107 teeth

5MR-565
P.L 22.244
113 teeth

5MR-580
P.L 22.835
116 teeth

5MR-600
P.L 23.622
120 teeth

Length Factor*

5MR-450
P.L 17.716
90 teeth

1.308
1.308
1.316
1.316
1.324
1.324
1.333
1.333
1.333
1.333
1.333
1.333
1.333
1.333
1.357
1.360
1.360
1.364
1.364
1.368
1.368
1.375
1.385
1.385
1.389
1.389
1.391
1.400
1.400
1.406
1.406
1.412
1.417
1.417
1.422
1.429
1.429
1.429
1.440
1.440
1.444
1.444
1.455
1.455
1.462
1.467
1.471
1.474
1.474
1.478
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.511
1.520
1.524
1.529
1.538
1.538
1.545

5MR-425
P.L 16.732
85 teeth

2.130
4.261
1.566
3.133
2.820
5.639
1.504
1.754
2.005
2.506
3.008
3.760
4.010
5.013
2.381
2.130
4.261
1.880
3.760
1.629
3.258
2.757
2.256
4.511
1.566
3.133
2.005
1.754
3.509
2.820
5.639
3.008
2.130
4.261
4.010
1.880
2.506
5.013
2.256
4.511
1.629
3.258
2.005
4.010
2.381
2.757
3.133
1.754
3.509
2.130
1.880
2.256
2.820
3.008
3.760
4.511
5.639
4.261
2.381
2.005
3.258
2.506
5.013
2.130

5MR-405
P.L 15.945
81 teeth

34
68
25
50
45
90
24
28
32
40
48
60
64
80
38
34
68
30
60
26
52
44
36
72
25
50
32
28
56
45
90
48
34
68
64
30
40
80
36
72
26
52
32
64
38
44
50
28
56
34
30
36
45
48
60
72
90
68
38
32
52
40
80
34

Speed
Ratio

5MR-400
P.L 15.748
80 teeth

1.629
3.258
1.191
2.381
2.130
4.261
1.128
1.316
1.504
1.880
2.256
2.820
3.008
3.760
1.754
1.566
3.133
1.379
2.757
1.191
2.381
2.005
1.629
3.258
1.128
2.256
1.441
1.253
2.506
2.005
4.010
2.130
1.504
3.008
2.820
1.316
1.754
3.509
1.566
3.133
1.128
2.256
1.379
2.757
1.629
1.880
2.130
1.191
2.381
1.441
1.253
1.504
1.880
2.005
2.506
3.008
3.760
2.820
1.566
1.316
2.130
1.629
3.258
1.379

Pitch
Diameter
(Inches)

5MR-375
P.L 14.764
75 teeth

26
52
19
38
34
68
18
21
24
30
36
45
48
60
28
25
50
22
44
19
38
32
26
52
18
36
23
20
40
32
64
34
24
48
45
21
28
56
25
50
18
36
22
44
26
30
34
19
38
23
20
24
30
32
40
48
60
45
25
21
34
26
52
22

No.
of
Grooves

5MR-355
P.L 13.976
71 teeth

Pitch
Diameter
(Inches)

5MR-300
P.L 11.811
60 teeth

No.
of
Grooves

Center Distance, Inches

2.94

4.03

4.42

4.92

5.01

5.41

5.90

6.88
7.67
5.50
5.94

7.57
4.60
8.36
6.19
6.63

8.16
5.19
8.95
6.78
7.22

8.46
5.49
9.25
7.07
7.52

8.85
5.88
9.64
7.47
7.91

3.73

4.82

5.21

3.08

3.48

5.71
3.52
3.97

5.80
3.62
4.07

6.20
4.02
4.46

6.69
4.51
4.96

3.83
3.49
3.14

4.92
4.57
4.23
3.53

5.31
4.96
4.62
3.92
3.22

5.80
5.46
5.11
4.42
3.72

5.90
5.55
5.21
4.51
3.82

6.30
5.95
5.60
4.91
4.21

6.79
6.45
6.10
5.41
4.71
3.66

7.77
7.43
7.08
6.39
5.69
4.65
4.30

8.46
8.12
7.77
7.08
6.38
5.34
4.99

9.05
8.71
8.36
7.67
6.98
5.93
5.59

9.35
9.00
8.66
7.96
7.27
6.23
5.88

5.11
5.45

5.60
5.95

6.58
6.93

5.40

5.80

3.62
4.32

5.66
3.42
4.12
4.81

5.75
3.51
4.21
4.91

6.15
3.91
4.61
5.30

6.30
3.71
6.64
4.41
5.11
5.80

7.28
4.69
7.62
5.39
6.09
6.78

4.27
4.62

5.26
3.12
4.66
5.01

5.75
3.62
5.16
5.51

5.85
3.71
5.26
5.60

3.17

3.57

4.07

4.16

6.25
4.11
5.65
6.00
3.61
4.56

6.74
4.61
6.15
6.49
4.11
5.05

7.72
5.59
7.13
7.47
5.09
6.04

7.28
7.62
4.69
7.97
5.39
8.31
6.09
6.78
7.47
4.38
8.41
6.28
7.82
8.16
5.78
6.73

7.87
8.21
5.28
8.56
5.98
8.90
6.68
7.37
8.06
4.98
9.00
6.87
8.41
8.75
6.38
7.32

8.16
8.51
5.58
8.85
6.28
9.20
6.97
7.67
8.36
5.28
9.30
7.17
8.70
9.05
6.67
7.61

9.74
9.40
9.05
8.36
7.67
6.63
6.28
4.88
8.56
8.90
5.98
9.25
6.67
9.59
7.37
8.06
8.75
5.67
9.69
7.56
9.10
9.44
7.07
8.01

2.64
2.99

3.73
4.08

4.12
4.47

4.62
4.96

4.71
5.06

3.34

4.42

4.81

5.31

3.68

4.77

5.16

2.84

3.23
3.93

3.78

4.87

3.19
3.53

3.03

2.92
4.12

3.32
4.52

3.81
5.01

3.91
5.11

4.31
5.50

4.80
6.00

3.38
2.53

4.47
3.62

4.86
4.02

5.36
4.51

5.45
4.61

5.85
5.01

6.34
5.50

5.79
6.98
4.08
4.44
7.32
6.48

6.48
7.67
4.78
5.13
8.01
7.17

7.07
8.26
5.37
5.72
8.61
7.77

2.88

3.97

4.36

4.86

4.96

5.35

5.85

6.83

3.73

4.82

5.21

3.23

4.32

4.71

5.70
3.51
5.21

5.80
3.60
5.30

6.19
4.00
5.70

6.69
4.50
6.19

2.73

3.82
3.32

3.58

4.67

4.21
3.71
3.21
5.06

4.71
4.21
3.71
5.55

3.08
3.43
2.93

4.17
4.52
4.02
3.26
3.01

4.56
4.91
4.41
3.66
3.41

5.06
5.41
4.91
4.16
3.91

4.81
4.31
3.80
5.65
3.30
5.15
5.50
5.00
4.25
4.00

5.20
4.70
4.20
6.05
3.70
5.55
5.90
5.40
4.65
4.40

5.70
5.20
4.70
6.54
4.20
6.05
6.39
5.89
5.15
4.90
3.89

7.67
5.49
7.18
4.48
6.68
6.18
5.68
7.52
5.18
7.03
7.37
6.88
6.13
5.88
4.88

7.52
4.47
8.36
6.18
7.87
5.18
7.37
6.87
6.38
8.21
5.88
7.72
8.06
7.57
6.82
6.57
5.57
4.56

8.11
5.07
8.95
6.77
8.46
5.77
7.96
7.47
6.97
8.80
6.47
8.31
8.65
8.16
7.41
7.17
6.17
5.16

7.37
8.56
5.67
6.02
8.90
8.06
4.66
8.41
5.37
9.25
7.07
8.75
6.07
8.26
7.76
7.26
9.10
6.77
8.60
8.95
8.45
7.71
7.46
6.46
5.46

7.76
8.95
6.07
6.42
9.30
8.46
5.06
8.80
5.77
9.64
7.46
9.15
6.46
8.65
8.16
7.66
9.49
7.16
9.00
9.34
8.85
8.11
7.86
6.86
5.86

2.78
3.28

3.87
4.37

2.62

3.72

4.26
4.76
3.10
4.11

4.76
5.26
3.60
4.61

4.85
5.35
3.70
4.70

5.25
5.75
4.09
5.10

5.75
6.24
4.59
5.60

4.22
6.73
7.22
5.58
6.58

4.92
7.42
7.91
6.27
7.27

3.13

4.22

4.61

5.11

5.20

5.60

6.09

7.07

7.76

5.51
8.01
8.50
6.87
7.86
4.54
8.36

5.81
8.31
8.80
7.16
8.16
4.84
8.65

6.21
8.70
9.20
7.56
8.55
5.24
9.05

0.77

0.81

0.83

0.84

0.85

0.86

0.88

0.90

0.92

0.94

0.95

0.95

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 20

R

The Gates Rubber Company

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

5MR-900
P.L 35.433
180 teeth

5MR-1000
P.L 39.370
200 teeth

5MR-1150
P.L 45.276
230 teeth

5MR-1300
P.L 51.181
260 teeth

5MR-1450
P.L 57.087
290 teeth

5MR-1600
P.L 62.992
320 teeth

5MR-1720
P.L 67.716
344 teeth

5MR-2100
P.L 82.677
420 teeth

0.97

5MR-850
P.L 33.465
170 teeth

6.70
9.20
9.69
8.05
9.05
5.74
9.54

5MR-800
P.L 31.496
160 teeth

8.26
9.45
6.57
6.92
9.79
8.95
5.56
9.30
6.26
10.14
7.96
9.64
6.96
9.15
8.65
8.16
9.99
7.66
9.49
9.84
9.34
8.60
8.35
7.36
6.36

5MR-750
P.L 29.528
150 teeth

10.24
9.89
9.55
8.85
8.16
7.12
6.77
5.38
9.05
9.40
6.47
9.74
7.17
10.09
7.86
8.56
9.25
6.17
10.19
8.06
9.59
9.94
7.56
8.51

5MR-700
P.L 27.559
140 teeth

9.35
6.38
10.14
7.97
8.41

5MR-650
P.L 25.590
130 teeth

5MR-625
P.L 24.606
125 teeth

Center Distance, Inches
Speed
Ratio

9.84
6.87
10.63
8.46
8.90
10.73
10.38
10.04
9.35
8.65
7.61
7.27
5.87
9.54
9.89
6.96
10.23
7.66
10.58
8.35
9.05
9.74
6.66
10.68
8.55
10.08
10.43
8.06
9.00
5.15
8.75
9.94
7.06
7.41
10.28
9.44
6.06
9.79
6.76
10.63
8.45
10.13
7.45
9.64
9.14
8.65
10.48
8.15
9.98
10.33
9.83
9.09
8.84
7.85
6.85
5.33
7.20
9.69
10.18
8.54
9.54
6.24
10.03

10.82
7.86
11.61
9.44
9.89
5.96
11.71
11.37
11.02
10.33
9.64
8.60
8.25
6.86
10.53
10.87
7.95
11.22
8.65
11.56
9.34
10.03
10.72
7.65
11.66
9.54
11.07
11.42
9.04
9.98
6.15
9.73
10.92
8.05
8.39
11.27
10.43
7.05
10.77
7.75
11.61
9.44
11.12
8.44
10.62
10.13
9.63
11.46
9.14
10.97
11.32
10.82
10.08
9.83
8.84
7.84
6.33
8.19
10.67
11.17
9.53
10.52
7.23
11.02

11.81
8.85
12.60
10.43
10.87
6.96
12.70
12.35
12.01
11.32
10.62
9.59
9.24
7.85
11.51
11.86
8.94
12.20
9.63
12.55
10.33
11.02
11.71
8.64
12.65
10.52
12.06
12.40
10.03
10.97
7.14
10.72
11.91
9.03
9.38
12.25
11.41
8.04
11.76
8.73
12.60
10.42
12.10
9.43
11.61
11.11
10.62
12.45
10.12
11.96
12.30
11.81
11.06
10.82
9.82
8.83
7.32
9.18
11.66
12.15
10.52
11.51
8.22
12.00

12.80
9.83
13.58
11.41
11.86
7.94
13.68
13.34
12.99
12.30
11.61
10.57
10.23
8.84
12.50
12.84
9.93
13.19
10.62
13.53
11.31
12.00
12.69
9.63
13.63
11.51
13.04
13.39
11.01
11.95
8.13
11.71
12.89
10.02
10.37
13.24
12.40
9.03
12.74
9.72
13.58
11.41
13.09
10.42
12.59
12.10
11.61
13.43
11.11
12.94
13.29
12.79
12.05
11.80
10.81
9.82
8.31
10.16
12.64
13.14
11.50
12.49
9.21
12.99

13.78
10.81
14.56
12.39
12.84
8.93
14.66
14.32
13.97
13.28
12.59
11.55
11.21
9.82
13.48
13.82
10.91
14.17
11.60
14.51
12.29
12.98
13.68
10.61
14.61
12.49
14.02
14.37
12.00
12.93
9.12
12.69
13.87
11.00
11.35
14.22
13.38
10.01
13.72
10.70
14.56
12.39
14.07
11.40
13.58
13.08
12.59
14.41
12.09
13.92
14.27
13.77
13.03
12.78
11.79
10.80
9.30
11.15
13.62
14.12
12.49
13.48
10.20
13.97

14.76
11.80
15.55
13.38
13.82
9.92
15.65
15.30
14.96
14.27
13.58
12.54
12.19
10.81
14.46
14.81
11.89
15.15
12.59
15.50
13.28
13.97
14.66
11.60
15.60
13.48
15.01
15.35
12.98
13.92
10.10
13.67
14.86
11.99
12.34
15.20
14.36
11.00
14.71
11.69
15.55
13.37
15.05
12.38
14.56
14.07
13.57
15.40
13.08
14.91
15.25
14.76
14.02
13.77
12.78
11.79
10.29
12.13
14.61
15.10
13.47
14.46
11.18
14.95

16.73
13.77
17.52
15.35
15.79
11.89
17.62
17.27
16.93
16.24
15.55
14.51
14.16
12.78
16.43
16.78
13.87
17.12
14.56
17.47
15.25
15.94
16.63
13.57
17.57
15.45
16.98
17.32
14.95
15.89
12.08
15.64
16.83
13.96
14.31
17.17
16.33
12.97
16.68
13.66
17.52
15.35
17.02
14.36
16.53
16.04
15.54
17.37
15.05
16.88
17.22
16.73
15.99
15.74
14.75
13.76
12.27
14.11
16.58
17.07
15.44
16.43
13.16
16.92

19.69
16.73
20.47
18.31
18.75
14.85
20.57
20.23
19.88
19.19
18.50
17.47
17.12
15.74
19.39
19.74
16.82
20.08
17.51
20.42
18.21
18.90
19.59
16.53
20.52
18.40
19.93
20.28
17.91
18.85
15.04
18.60
19.78
16.92
17.27
20.13
19.29
15.93
19.64
16.62
20.47
18.30
19.98
17.31
19.49
18.99
18.50
20.33
18.01
19.83
20.18
19.68
18.94
18.70
17.71
16.72
15.23
17.06
19.54
20.03
18.40
19.39
16.12
19.88

22.64
19.68
23.42
21.26
21.70
17.80
23.52
23.18
22.83
22.14
21.45
20.42
20.07
18.69
22.34
22.69
19.77
23.03
20.47
23.37
21.16
21.85
22.54
19.48
23.47
21.35
22.88
23.23
20.86
21.80
17.99
21.55
22.73
19.87
20.22
23.08
22.24
18.88
22.59
19.57
23.42
21.25
22.93
20.27
22.44
21.94
21.45
23.28
20.96
22.78
23.13
22.63
21.89
21.65
20.66
19.67
18.18
20.02
22.49
22.98
21.35
22.34
19.07
22.83

25.59
22.63
26.38
24.21
24.65
20.76
26.48
26.13
25.79
25.10
24.41
23.37
23.03
21.65
25.30
25.64
22.73
25.98
23.42
26.33
24.11
24.80
25.49
22.43
26.43
24.31
25.84
26.18
23.82
24.75
20.95
24.51
25.69
22.83
23.17
26.03
25.20
21.84
25.54
22.53
26.38
24.21
25.89
23.22
25.39
24.90
24.41
26.23
23.91
25.74
26.08
25.59
24.85
24.60
23.62
22.63
21.14
22.97
25.44
25.93
24.31
25.29
22.03
25.79

28.54
25.58
29.33
27.16
27.61
23.71
29.43
29.08
28.74
28.05
27.36
26.32
25.98
24.60
28.25
28.59
25.68
28.93
26.37
29.28
27.06
27.75
28.44
25.39
29.38
27.26
28.79
29.13
26.77
27.70
23.90
27.46
28.64
25.78
26.12
28.98
28.15
24.79
28.49
25.48
29.33
27.16
28.84
26.17
28.34
27.85
27.36
29.18
26.86
28.69
29.03
28.54
27.80
27.55
26.57
25.58
24.09
25.92
28.39
28.88
27.26
28.24
24.98
28.74

30.91
27.95
31.69
29.53
29.97
26.08
31.79
31.45
31.10
30.41
29.72
28.69
28.34
26.96
30.61
30.96
28.05
31.30
28.74
31.64
29.43
30.12
30.81
27.75
31.74
29.62
31.15
31.50
29.13
30.07
26.27
29.82
31.00
28.14
28.49
31.35
30.51
27.16
30.86
27.85
31.69
29.53
31.20
28.54
30.71
30.21
29.72
31.55
29.23
31.05
31.40
30.90
30.16
29.92
28.93
27.94
26.46
28.29
30.76
31.25
29.62
30.61
27.35
31.10

38.39
35.43
39.17
37.01
37.45
33.56
39.27
38.93
38.58
37.89
37.20
36.17
35.82
34.44
38.09
38.44
35.53
38.78
36.22
39.12
36.91
37.60
38.29
35.23
39.22
37.10
38.63
38.98
36.61
37.55
33.75
37.30
38.48
35.63
35.97
38.83
37.99
34.64
38.34
35.33
39.17
37.01
38.68
36.02
38.19
37.70
37.20
39.03
36.71
38.53
38.88
38.39
37.65
37.40
36.41
35.43
33.95
35.77
38.24
38.73
37.10
38.09
34.83
38.58

1.308
1.308
1.316
1.316
1.324
1.324
1.333
1.333
1.333
1.333
1.333
1.333
1.333
1.333
1.357
1.360
1.360
1.364
1.364
1.368
1.368
1.375
1.385
1.385
1.389
1.389
1.391
1.400
1.400
1.406
1.406
1.412
1.417
1.417
1.422
1.429
1.429
1.429
1.440
1.440
1.444
1.444
1.455
1.455
1.462
1.467
1.471
1.474
1.474
1.478
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.511
1.520
1.524
1.529
1.538
1.538
1.545

0.98

1.00

1.01

1.03

1.05

1.06

1.09

1.13

1.16

1.19

1.22

1.24

1.29

No. of
grooves

No. of
grooves

26
52
19
38
34
68
18
21
24
30
36
45
48
60
28
25
50
22
44
19
38
32
26
52
18
36
23
20
40
32
64
34
24
48
45
21
28
56
25
50
18
36
22
44
26
30
34
19
38
23
20
24
30
32
40
48
60
45
25
21
34
26
52
22

34
68
25
50
45
90
24
28
32
40
48
60
64
80
38
34
68
30
60
26
52
44
36
72
25
50
32
28
56
45
90
48
34
68
64
30
40
80
36
72
26
52
32
64
38
44
50
28
56
34
30
36
45
48
60
72
90
68
38
32
52
40
80
34

*This length correction factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 21

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

Length Factor*

3.91
4.42
3.76
3.10

4.31
4.81
4.16
3.50

4.80
5.30
4.65
4.00

3.36

3.75

3.17

4.26

3.02

4.11

4.66
3.18
4.50

3.48
2.82
3.32
2.67

5MR-600
P.L 23.622
120 teeth

2.90
4.07
3.41
4.57

2.97

5MR-580
P.L 22.835
116 teeth

3.30
4.46
3.80
4.96

5.60
3.29
3.80
4.95
4.30
5.45

5MR-565
P.L 22.244
113 teeth

5.11

5MR-535
P.L 21.063
107 teeth

4.72

5MR-500
P.L 19.685
100 teeth

3.63

5MR-450
P.L 17.716
90 teeth

1.545
1.556
1.556
1.563
1.565
1.571
1.579
1.579
1.583
1.600
1.600
1.600
1.600
1.600
1.600
1.607
1.607
1.619
1.625
1.636
1.636
1.647
1.647
1.652
1.667
1.667
1.667
1.667
1.667
1.684
1.684
1.692
1.700
1.700
1.714
1.714
1.727
1.731
1.731
1.733
1.739
1.750
1.750
1.760
1.765
1.778
1.778
1.778
1.786
1.789
1.789
1.800
1.800
1.800
1.800
1.810
1.818
1.818
1.833
1.846
1.857
1.867
1.867
1.875

5MR-425
P.L 16.732
85 teeth

4.261
1.754
3.509
3.133
2.256
2.757
1.880
3.760
2.381
2.005
2.506
3.008
4.010
4.511
5.013
2.820
5.639
2.130
3.258
2.256
4.511
3.509
7.018
2.381
1.880
2.506
3.133
3.760
5.013
2.005
4.010
2.757
2.130
4.261
2.256
3.008
2.381
2.820
5.639
3.258
2.506
3.509
7.018
2.757
3.760
2.005
4.010
5.013
3.133
2.130
4.261
2.256
2.820
4.511
5.639
2.381
2.506
5.013
2.757
3.008
3.258
3.509
7.018
2.820

5MR-405
P.L 15.945
81 teeth

68
28
56
50
36
44
30
60
38
32
40
48
64
72
80
45
90
34
52
36
72
56
112
38
30
40
50
60
80
32
64
44
34
68
36
48
38
45
90
52
40
56
112
44
60
32
64
80
50
34
68
36
45
72
90
38
40
80
44
48
52
56
112
45

Speed
Ratio

5MR-400
P.L 15.748
80 teeth

2.757
1.128
2.256
2.005
1.441
1.754
1.191
2.381
1.504
1.253
1.566
1.880
2.506
2.820
3.133
1.754
3.509
1.316
2.005
1.379
2.757
2.130
4.261
1.441
1.128
1.504
1.880
2.256
3.008
1.191
2.381
1.629
1.253
2.506
1.316
1.754
1.379
1.629
3.258
1.880
1.441
2.005
4.010
1.566
2.130
1.128
2.256
2.820
1.754
1.191
2.381
1.253
1.566
2.506
3.133
1.316
1.379
2.757
1.504
1.629
1.754
1.880
3.760
1.504

Pitch
Diameter
(Inches)

5MR-375
P.L 14.764
75 teeth

44
18
36
32
23
28
19
38
24
20
25
30
40
45
50
28
56
21
32
22
44
34
68
23
18
24
30
36
48
19
38
26
20
40
21
28
22
26
52
30
23
32
64
25
34
18
36
45
28
19
38
20
25
40
50
21
22
44
24
26
28
30
60
24

No.
of
Grooves

5MR-355
P.L 13.976
71 teeth

Pitch
Diameter
(Inches)

5MR-300
P.L 11.811
60 teeth

No.
of
Grooves

Center Distance, Inches

5.70
3.38
3.89
5.05
4.40
5.55
4.90
5.40
4.75
4.09

6.09
3.79
4.29
5.45
4.80
5.94
3.47
5.30
5.79
5.15
4.49

6.59
4.29
4.79
5.94
5.29
6.44
3.98
5.79
6.29
5.64
4.99
3.66

4.26
7.57
5.27
5.78
6.92
6.28
7.42
4.97
6.77
7.27
6.63
5.97
4.66
3.99

4.96
8.26
5.97
6.47
7.62
6.97
8.11
5.66
7.47
7.96
7.32
6.67
5.36
4.70
6.92

5.56
8.85
6.56
7.06
8.21
7.56
8.70
6.26
8.06
8.55
7.91
7.26
5.95
5.29
4.63
7.51

5.85
9.15
6.86
7.36
8.50
7.86
9.00
6.56
8.35
8.85
8.20
7.55
6.25
5.59
4.93
7.80

6.25
9.54
7.26
7.75
8.90
8.25
9.39
6.95
8.75
9.24
8.60
7.95
6.65
5.99
5.33
8.20

4.25

4.34

4.74

5.24

6.22

5.15
3.69
5.00

5.25
3.78
5.10

5.64
4.18
5.49

6.14
4.68
5.99
4.38

7.12
5.67
6.97
4.04
5.37

7.81
6.37
7.66
4.74
6.06

8.40
6.96
8.25
5.34
6.66

8.70
7.25
8.55
5.64
6.95

9.09
7.65
8.94
6.04
7.35

3.38

3.47

3.87

8.40
9.04
8.25
7.45
6.65
5.01
8.90
6.34
7.95
8.75
6.04
8.60
7.65
8.45
7.90

8.80
9.44
8.65
7.85
7.04
5.42
9.29
6.74
8.35
9.14
6.44
8.99
8.05
8.84
8.29
4.67
7.74
8.69
7.44

2.86
3.52
2.71

3.96
4.61
3.81
2.99

4.35
5.00
4.20
3.38

4.85
5.50
4.70
3.89

4.95
5.59
4.79
3.98

5.34
5.99
5.19
4.38
3.56

5.84
6.49
5.69
4.88
4.07

6.82
7.47
6.67
5.87
5.06

7.51
8.16
7.36
6.56
5.76

3.37

4.46

4.85

5.35

5.44

5.84

3.22

3.50
4.31

3.89
4.70

4.39
5.20

4.49
5.29

4.89
5.69

6.34
3.75
5.39
6.19

4.16
3.19
4.01
3.44

4.55
3.58
4.40
3.84

5.05
4.09
4.90
4.34

5.14
4.18
4.99
4.44

5.54
4.58
5.39
4.83

6.04
5.08
5.89
5.33

7.32
4.75
6.37
7.17
4.44
7.02
6.07
6.87
6.32

8.01
5.45
7.06
7.86
5.14
7.71
6.76
7.56
7.01

8.10
8.75
7.95
7.16
6.35
4.71
8.60
6.05
7.65
8.45
5.74
8.30
7.35
8.15
7.60

3.85

3.27
4.25

3.78
4.75
3.46

3.87
4.84
3.56

4.27
5.24
3.96

4.77
5.74
4.47

5.76
6.72
5.46

6.46
7.41
6.15

7.05
8.00
6.75

7.35
8.30
7.04

3.54

3.94

4.44

4.54

3.42

4.51

4.90

5.40

5.49

4.93
3.65
5.89

5.43
4.15
6.38
3.84

6.42
5.15
7.37
4.84

3.26

3.07
4.36

3.47
4.75

3.98
5.25

4.07
5.34

4.47
5.74

4.97
6.23

3.11

4.20
3.49

4.60
3.88

5.09
4.39

5.19
4.48

5.59
4.88

6.08
5.38

5.96
7.22
4.53
7.07
6.36
4.21

7.11
5.85
8.06
5.54
4.24
6.66
7.91
5.23
7.76
7.06
4.92

7.70
6.44
8.65
6.14
4.84
7.25
8.50
5.83
8.35
7.65
5.52

8.00
6.74
8.94
6.43
5.15
7.55
8.79
6.13
8.64
7.95
5.82

2.95
2.80

4.05
3.90

4.44
4.29

4.94
4.79

5.04
4.89

5.44
5.28

5.93
5.78

6.92
6.77

2.48

3.59
3.28
2.96

3.98
3.67
3.36
3.04

4.48
4.18
3.87
3.55

4.58
4.27
3.96
3.65

4.98
4.67
4.36
4.05

5.48
5.17
4.87
4.55

6.46
6.16
5.86
5.55

7.61
7.46
4.28
7.16
6.85
6.55
6.24

8.20
8.05
4.89
7.75
7.45
7.14
6.84

8.49
8.34
5.19
8.04
7.74
7.44
7.14

8.39
7.14
9.34
6.83
5.55
7.94
9.19
6.53
9.04
8.34
6.22
4.75
8.89
8.74
5.59
8.44
8.14
7.84
7.53

3.53

3.93

4.43

4.53

4.92

5.42

6.41

7.10

7.70

7.99

8.39

0.81

0.83

0.84

0.85

0.86

0.88

0.90

0.92

0.94

0.95

0.95

3.06
2.91

2.75

0.77

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 22

R

The Gates Rubber Company

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

5MR-850
P.L 33.465
170 teeth

5MR-900
P.L 35.433
180 teeth

5MR-1000
P.L 39.370
200 teeth

5MR-1150
P.L 45.276
230 teeth

5MR-1300
P.L 51.181
260 teeth

5MR-1450
P.L 57.087
290 teeth

5MR-1600
P.L 62.992
320 teeth

5MR-1720
P.L 67.716
344 teeth

5MR-2100
P.L 82.677
420 teeth

5MR-700
P.L 27.559
140 teeth

5MR-800
P.L 31.496
160 teeth

5MR-650
P.L 25.590
130 teeth

6.75
10.04
7.75
8.25
9.39
8.75
9.89
7.45
9.24
9.74
9.09
8.45
7.15
6.49
5.83
8.70
5.01
9.59
8.15
9.44
6.54
7.85

7.24
10.53
8.24
8.74
9.88
9.24
10.38
7.94
9.73
10.23
9.59
8.94
7.64
6.99
6.33
9.19
5.51
10.08
8.64
9.93
7.03
8.34

8.23
11.51
9.23
9.73
10.87
10.22
11.36
8.93
10.72
11.21
10.57
9.92
8.63
7.98
7.32
10.17
6.51
11.07
9.63
10.92
8.02
9.33

9.29
9.94
9.14
8.34
7.54
5.92
9.79
7.24
8.84
9.64
6.93
9.49
8.54
9.34
8.79
5.18
8.24
9.19
7.94

9.78
10.43
9.63
8.84
8.03
6.42
10.28
7.73
9.33
10.13
7.43
9.98
9.03
9.83
9.28
5.68
8.73
9.68
8.43

10.77
11.41
10.62
9.82
9.02
7.41
11.26
8.72
10.32
11.11
8.42
10.96
10.02
10.82
10.27
6.69
9.72
10.67
9.42

8.89
7.64
9.83
7.33
6.05
8.44
9.69
7.03
9.54
8.84
6.72
5.27
9.39
9.24
6.10
8.94
8.64
8.33
8.03

9.38
8.13
10.33
7.82
6.55
8.93
10.18
7.52
10.03
9.33
7.21
5.77
9.88
9.73
6.60
9.43
9.13
8.83
8.52

10.37
9.12
11.31
8.82
7.55
9.92
11.16
8.51
11.01
10.32
8.21
6.77
10.86
10.71
7.59
10.41
10.11
9.81
9.51

8.88

9.38
0.98

0.97

5MR-750
P.L 29.528
150 teeth

5MR-625
P.L 24.606
125 teeth

Center Distance, Inches
Speed
Ratio

9.22
12.50
10.22
10.71
11.85
11.21
12.35
9.92
11.71
12.20
11.56
10.91
9.62
8.97
8.31
11.16
7.50
12.05
10.61
11.90
9.01
10.31

10.36

11.75
12.40
11.60
10.81
10.01
8.41
12.25
9.71
11.31
12.10
9.41
11.95
11.01
11.80
11.26
7.68
10.71
11.65
10.41
5.91
11.35
10.11
12.30
9.80
8.54
10.90
12.15
9.50
12.00
11.30
9.20
7.77
11.85
11.70
8.59
11.40
11.10
10.80
10.50
6.08
11.35

10.21
13.48
11.20
11.70
12.84
12.20
13.33
10.91
12.69
13.19
12.54
11.90
10.61
9.96
9.30
12.15
8.50
13.04
11.60
12.89
10.00
11.30
6.75
12.74
13.38
12.59
11.80
11.00
9.40
13.23
10.70
12.29
13.09
10.40
12.94
11.99
12.79
12.24
8.68
11.69
12.64
11.39
6.92
12.34
11.09
13.28
10.79
9.53
11.89
13.13
10.49
12.98
12.29
10.19
8.77
12.84
12.69
9.58
12.39
12.09
11.79
11.49
7.10
12.34

11.19
14.46
12.19
12.68
13.82
13.18
14.31
11.89
13.67
14.17
13.52
12.88
11.59
10.94
10.29
13.13
9.49
14.02
12.58
13.87
10.99
12.28
7.75
13.72
14.36
13.57
12.78
11.98
10.38
14.21
11.68
13.27
14.07
11.38
13.92
12.97
13.77
13.22
9.67
12.68
13.62
12.38
7.93
13.32
12.08
14.26
11.78
10.52
12.87
14.11
11.47
13.97
13.27
11.17
9.76
13.82
13.67
10.57
13.37
13.07
12.77
12.47
8.10
13.32

12.18
15.45
13.17
13.67
14.81
14.16
15.30
12.87
14.66
15.15
14.51
13.86
12.57
11.93
11.28
14.11
10.48
15.00
13.57
14.85
11.97
13.27
8.75
14.71
15.35
14.56
13.76
12.97
11.37
15.20
12.67
14.26
15.05
12.37
14.90
13.96
14.75
14.21
10.66
13.66
14.61
13.36
8.93
14.31
13.06
15.25
12.76
11.51
13.86
15.10
12.46
14.95
14.26
12.16
10.75
14.80
14.65
11.56
14.35
14.06
13.76
13.46
9.10
14.30

14.15
17.42
15.14
15.64
16.78
16.13
17.27
14.85
16.63
17.12
16.48
15.84
14.55
13.90
13.25
16.08
12.45
16.97
15.54
16.82
13.95
15.24
10.74
16.68
17.32
16.53
15.74
14.94
13.35
17.17
14.64
16.23
17.02
14.34
16.87
15.93
16.72
16.18
12.64
15.63
16.58
15.34
10.92
16.28
15.04
17.22
14.74
13.49
15.83
17.07
14.44
16.92
16.23
14.14
12.73
16.77
16.62
13.54
16.33
16.03
15.73
15.43
11.10
16.28

17.11
20.37
18.10
18.60
19.73
19.09
20.23
17.80
19.58
20.08
19.44
18.79
17.51
16.86
16.21
19.04
15.42
19.93
18.50
19.78
16.91
18.20
13.71
19.63
20.27
19.48
18.69
17.90
16.31
20.13
17.60
19.19
19.98
17.30
19.83
18.89
19.68
19.14
15.61
18.59
19.53
18.29
13.90
19.24
18.00
20.17
17.70
16.45
18.79
20.03
17.40
19.88
19.18
17.10
15.70
19.73
19.58
16.50
19.28
18.99
18.69
18.39
14.08
19.23

20.06
23.32
21.05
21.55
22.68
22.04
23.18
20.76
22.53
23.03
22.39
21.74
20.46
19.81
19.17
21.99
18.37
22.88
21.45
22.73
19.86
21.15
16.67
22.58
23.22
22.43
21.64
20.85
19.26
23.08
20.55
22.14
22.93
20.26
22.78
21.84
22.63
22.09
18.56
21.54
22.48
21.25
16.86
22.19
20.95
23.13
20.65
19.41
21.74
22.98
20.35
22.83
22.14
20.05
18.66
22.68
22.53
19.45
22.23
21.94
21.64
21.34
17.05
22.18

23.02
26.28
24.01
24.50
25.64
25.00
26.13
23.71
25.49
25.98
25.34
24.70
23.42
22.77
22.13
24.95
21.33
25.84
24.40
25.69
22.82
24.11
19.64
25.54
26.18
25.39
24.60
23.81
22.22
26.03
23.51
25.09
25.88
23.21
25.74
24.80
25.59
25.04
21.52
24.50
25.44
24.20
19.83
25.14
23.91
26.08
23.61
22.37
24.70
25.93
23.31
25.78
25.09
23.01
21.62
25.64
25.49
22.41
25.19
24.89
24.60
24.30
20.01
25.14

25.97
29.23
26.96
27.45
28.59
27.95
29.08
26.66
28.44
28.93
28.29
27.65
26.37
25.72
25.08
27.90
24.29
28.79
27.35
28.64
25.77
27.06
22.59
28.49
29.13
28.34
27.55
26.76
25.18
28.98
26.46
28.04
28.83
26.17
28.69
27.75
28.54
27.99
24.48
27.45
28.39
27.15
22.78
28.09
26.86
29.03
26.56
25.32
27.65
28.88
26.26
28.73
28.04
25.96
24.57
28.59
28.44
25.37
28.14
27.84
27.55
27.25
22.97
28.09

28.34
31.59
29.33
29.82
30.95
30.31
31.45
29.03
30.81
31.30
30.66
30.02
28.73
28.09
27.45
30.26
26.65
31.15
29.72
31.00
28.14
29.42
24.96
30.85
31.50
30.71
29.92
29.13
27.54
31.35
28.83
30.41
31.20
28.53
31.05
30.11
30.90
30.36
26.85
29.82
30.76
29.52
25.15
30.46
29.22
31.40
28.93
27.69
30.01
31.25
28.63
31.10
30.41
28.33
26.94
30.95
30.80
27.73
30.51
30.21
29.91
29.62
25.34
30.46

35.82
39.08
36.81
37.30
38.43
37.79
38.93
36.51
38.29
38.78
38.14
37.50
36.21
35.57
34.93
37.74
34.14
38.63
37.20
38.48
35.62
36.90
32.45
38.34
38.98
38.19
37.40
36.61
35.03
38.83
36.31
37.89
38.68
36.01
38.53
37.59
38.38
37.84
34.33
37.30
38.24
37.00
32.64
37.94
36.70
38.88
36.41
35.17
37.50
38.73
36.11
38.58
37.89
35.81
34.43
38.43
38.28
35.22
37.99
37.69
37.40
37.10
32.83
37.94

1.545
1.556
1.556
1.563
1.565
1.571
1.579
1.579
1.583
1.600
1.600
1.600
1.600
1.600
1.600
1.607
1.607
1.619
1.625
1.636
1.636
1.647
1.647
1.652
1.667
1.667
1.667
1.667
1.667
1.684
1.684
1.692
1.700
1.700
1.714
1.714
1.727
1.731
1.731
1.733
1.739
1.750
1.750
1.760
1.765
1.778
1.778
1.778
1.786
1.789
1.789
1.800
1.800
1.800
1.800
1.810
1.818
1.818
1.833
1.846
1.857
1.867
1.867
1.875

1.00

1.01

1.03

1.05

1.06

1.09

1.13

1.16

1.19

1.22

1.24

1.29

No. of
grooves

No. of
grooves

44
18
36
32
23
28
19
38
24
20
25
30
40
45
50
28
56
21
32
22
44
34
68
23
18
24
30
36
48
19
38
26
20
40
21
28
22
26
52
30
23
32
64
25
34
18
36
45
28
19
38
20
25
40
50
21
22
44
24
26
28
30
60
24

68
28
56
50
36
44
30
60
38
32
40
48
64
72
80
45
90
34
52
36
72
56
112
38
30
40
50
60
80
32
64
44
34
68
36
48
38
45
90
52
40
56
112
44
60
32
64
80
50
34
68
36
45
72
90
38
40
80
44
48
52
56
112
45

*This length correction factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 23

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

Length Factor*

5MR-450
P.L 17.716
90 teeth

5MR-500
P.L 19.685
100 teeth

5MR-535
P.L 21.063
107 teeth

5MR-565
P.L 22.244
113 teeth

5MR-580
P.L 22.835
116 teeth

5MR-600
P.L 23.622
120 teeth

1.875
1.875
1.882
1.889
1.889
1.895
1.895
1.900
1.905
1.913
1.920
1.923
1.957
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.045
2.045
2.080
2.083
2.087
2.095
2.105
2.105
2.111
2.118
2.125
2.133
2.143
2.143
2.154
2.154
2.167
2.174
2.182
2.200
2.222
2.222
2.240
2.240
2.250
2.250
2.250
2.261
2.267
2.273
2.286
2.286
2.308
2.316
2.333
2.333

5MR-375
P.L 14.764
75 teeth

3.760
5.639
4.010
2.130
4.261
2.256
4.511
2.381
2.506
2.757
3.008
3.133
2.820
2.256
2.381
2.506
2.757
3.008
3.133
3.258
3.509
3.760
4.010
4.261
4.511
5.013
5.639
7.018
2.820
5.639
3.258
3.133
3.008
2.757
2.506
5.013
2.381
4.511
4.261
4.010
2.820
3.760
3.509
7.018
3.258
3.133
3.008
2.757
2.506
5.013
3.509
7.018
2.820
4.511
5.639
3.258
4.261
3.133
3.008
4.010
3.760
2.757
3.509
7.018

5MR-425
P.L 16.732
85 teeth

60
90
64
34
68
36
72
38
40
44
48
50
45
36
38
40
44
48
50
52
56
60
64
68
72
80
90
112
45
90
52
50
48
44
40
80
38
72
68
64
45
60
56
112
52
50
48
44
40
80
56
112
45
72
90
52
68
50
48
64
60
44
56
112

Speed
Ratio

5MR-405
P.L 15.945
81 teeth

2.005
3.008
2.130
1.128
2.256
1.191
2.381
1.253
1.316
1.441
1.566
1.629
1.441
1.128
1.191
1.253
1.379
1.504
1.566
1.629
1.754
1.880
2.005
2.130
2.256
2.506
2.820
3.509
1.379
2.757
1.566
1.504
1.441
1.316
1.191
2.381
1.128
2.130
2.005
1.880
1.316
1.754
1.629
3.258
1.504
1.441
1.379
1.253
1.128
2.256
1.566
3.133
1.253
2.005
2.506
1.441
1.880
1.379
1.316
1.754
1.629
1.191
1.504
3.008

Pitch
Diameter
(Inches)

5MR-400
P.L 15.748
80 teeth

32
48
34
18
36
19
38
20
21
23
25
26
23
18
19
20
22
24
25
26
28
30
32
34
36
40
45
56
22
44
25
24
23
21
19
38
18
34
32
30
21
28
26
52
24
23
22
20
18
36
25
50
20
32
40
23
30
22
21
28
26
19
24
48

No.
of
Grooves

5MR-355
P.L 13.976
71 teeth

Pitch
Diameter
(Inches)

5MR-300
P.L 11.811
60 teeth

No.
of
Grooves

Center Distance, Inches

3.23

3.33

3.73

4.24

5.24

5.94

6.53

6.83

3.92
6.28
3.60
6.13

4.93
7.26
4.61
7.11
4.29
6.96
6.81
6.51
6.21
6.05
6.46
7.16
7.01
6.86
6.56
6.25
6.10
5.95
5.64
5.33
5.02
4.70
4.38

5.63
7.96
5.32
7.80
5.00
7.66
7.50
7.20
6.90
6.75
7.15
7.85
7.70
7.55
7.25
6.95
6.79
6.64
6.34
6.03
5.72
5.41
5.09
4.45

6.23
8.55
5.92
8.40
5.61
8.25
8.10
7.80
7.49
7.34
7.74
8.44
8.29
8.14
7.84
7.54
7.39
7.24
6.93
6.62
6.32
6.01
5.69
5.06

6.52
8.84
6.22
8.69
5.91
8.54
8.39
8.09
7.79
7.64
8.04
8.74
8.59
8.44
8.14
7.84
7.68
7.53
7.23
6.92
6.61
6.31
5.99
5.36
4.55

7.23
4.84
6.92
9.24
6.62
9.09
6.31
8.94
8.79
8.49
8.19
8.03
8.44
9.13
8.98
8.84
8.53
8.23
8.08
7.93
7.63
7.32
7.01
6.71
6.40
5.77
4.96
8.48
5.01
7.98
8.13
8.28
8.58
8.88
5.85
9.03
6.48
6.79
7.10
8.53
7.41
7.72

3.31

4.40

4.79

5.29

5.39

3.41
5.78

3.15

4.25

4.64

5.14

5.24

5.63

3.00
2.84
2.52

4.10
3.94
3.63
3.32
3.16
3.58
4.30
4.14
3.99
3.68
3.36
3.20
3.04

4.49
4.34
4.03
3.72
3.56
3.97
4.69
4.54
4.38
4.07
3.76
3.60
3.45
3.12

4.99
4.84
4.53
4.22
4.07
4.48
5.19
5.03
4.88
4.57
4.26
4.11
3.95
3.64
3.31

5.08
4.93
4.63
4.32
4.16
4.57
5.28
5.13
4.98
4.67
4.36
4.21
4.05
3.73
3.41

5.48
5.33
5.02
4.72
4.56
4.97
5.68
5.53
5.38
5.07
4.76
4.61
4.45
4.14
3.82
3.50

5.98
5.83
5.52
5.22
5.06
5.47
6.18
6.03
5.87
5.57
5.26
5.11
4.95
4.64
4.33
4.01
3.69

2.50

3.62

4.02

4.52

4.62

5.02

5.51

6.50

7.20

7.79

2.61
2.93

3.08
3.25
3.41
3.72
4.03

3.49
3.65
3.80
4.12
4.43

4.00
4.15
4.31
4.62
4.93

4.09
4.25
4.41
4.72
5.02

4.50
4.65
4.81
5.12
5.42

5.00
5.15
5.31
5.61
5.92

5.99
6.14
6.30
6.60
6.91

3.09

4.19

4.58

5.08

5.18

5.57

6.07

3.21

4.56
3.40
3.72

4.66
3.49
3.82

3.58
5.06
3.90
4.22

3.77
4.09
5.56
4.41
4.73

7.06
4.46
4.79
5.10
6.55
5.42
5.73

6.69
6.84
6.99
7.30
7.60
4.53
7.75
5.18
5.49
5.81
7.24
6.12
6.43

7.28
7.43
7.59
7.89
8.19
5.14
8.34
5.78
6.09
6.41
7.84
6.71
7.02

8.09
4.59
7.58
7.73
7.88
8.18
8.49
5.45
8.64
6.08
6.39
6.70
8.13
7.01
7.32

3.53
3.69
3.85
4.16
4.47

4.04
4.20
4.35
4.66
4.97

4.14
4.29
4.45
4.76
5.07

4.54
4.70
4.85
5.16
5.47

5.04
5.20
5.35
5.66
5.97

3.25

3.76

3.86

4.27

4.77

6.04
6.19
6.34
6.65
6.95
3.88
5.77

6.73
6.89
7.04
7.34
7.64
4.61
6.47

7.33
7.48
7.63
7.93
8.24
5.23
7.07

7.62
7.78
7.93
8.23
8.53
5.53
7.36

8.02
8.17
8.32
8.63
8.93
5.94
7.76

3.71

4.11

4.61

4.71

5.11

5.61
3.52

6.59
4.55

7.29
5.26

3.17

3.57

4.08

4.18

4.58

3.33
3.49

3.73
3.89

4.24
4.40

2.69

3.81
2.88

4.21
3.29

3.48
4.71
3.80

4.34
4.49
3.24
3.58
4.81
3.90

4.74
4.90
3.66
3.99
5.21
4.31

5.09
3.85
5.24
5.40
4.18
4.50
5.71
4.82

6.08
4.87
6.23
6.39
5.19
5.50
6.69
5.82

6.78
5.58
6.93
7.08
5.89
6.21
7.39
6.52

7.88
5.87
4.44
7.37
6.18
7.53
7.68
6.49
6.80
7.98
7.11

8.18
6.17
4.76
7.67
6.48
7.82
7.97
6.79
7.10
8.28
7.41

8.58
6.57
5.17
8.07
6.88
8.22
8.37
7.19
7.50
8.67
7.81

0.77

0.81

0.83

0.84

0.85

0.86

0.88

0.90

0.92

0.94

0.95

0.95

2.46
3.20
3.04
2.88
2.56

2.54

2.65
2.97

2.59

3.66

3.13
3.29
3.45
3.77
4.08

4.06

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 24

R

The Gates Rubber Company

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN
5MR-1720
P.L 67.716
344 teeth

5MR-2100
P.L 82.677
420 teeth

0.98

5MR-1600
P.L 62.992
320 teeth

0.97

5MR-1450
P.L 57.087
290 teeth

9.56
7.57
6.20
9.06
7.88
9.21
9.36
8.19
8.50
9.66
8.80

5MR-1300
P.L 51.181
260 teeth

9.07
7.08
5.69
8.57
7.39
8.72
8.87
7.70
8.00
9.17
8.31

5MR-1150
P.L 45.276
230 teeth

9.01
9.16
9.31
9.62
9.92
6.95
8.76

5MR-1000
P.L 39.370
200 teeth

8.52
8.67
8.82
9.12
9.43
6.45
8.26

5MR-900
P.L 35.433
180 teeth

9.47
6.03
8.97
9.12
9.27
9.57
9.87
6.86
10.02
7.48
7.79
8.10
9.52
8.40
8.71

5MR-850
P.L 33.465
170 teeth

8.98
5.52
8.47
8.62
8.78
9.08
9.38
6.36
9.53
6.99
7.30
7.60
9.03
7.91
8.22

5MR-800
P.L 31.496
160 teeth

8.22
5.86
7.92
10.22
7.61
10.07
7.30
9.92
9.78
9.48
9.17
9.02
9.42
10.12
9.97
9.82
9.52
9.22
9.07
8.92
8.62
8.31
8.01
7.70
7.39
6.77
5.98

5MR-750
P.L 29.528
150 teeth

5MR-650
P.L 25.590
130 teeth

7.73
5.35
7.42
9.73
7.12
9.58
6.81
9.43
9.28
8.98
8.68
8.53
8.93
9.63
9.48
9.33
9.03
8.73
8.58
8.43
8.12
7.82
7.51
7.21
6.90
6.27
5.48

5MR-700
P.L 27.559
140 teeth

5MR-625
P.L 24.606
125 teeth

Center Distance, Inches
Speed
Ratio

9.21
6.86
8.91
11.21
8.60
11.06
8.30
10.91
10.76
10.46
10.16
10.01
10.41
11.11
10.96
10.81
10.51
10.21
10.06
9.91
9.61
9.30
9.00
8.70
8.39
7.77
6.99
10.46
7.04
9.96
10.11
10.26
10.56
10.86
7.86
11.01
8.48
8.79
9.09
10.50
9.40
9.70
5.38
10.00
10.15
10.30
10.60
10.90
7.95
9.75
5.46
10.55
8.57
7.21
10.05
8.88
10.20
10.35
9.18
9.49
10.65
9.79
5.54

10.20
7.86
9.90
12.20
9.59
12.05
9.29
11.90
11.75
11.45
11.15
11.00
11.40
12.09
11.94
11.80
11.50
11.20
11.05
10.90
10.60
10.29
9.99
9.69
9.38
8.77
8.00
6.25
11.44
8.04
10.94
11.09
11.24
11.54
11.84
8.86
11.99
9.47
9.78
10.08
11.49
10.39
10.69
6.42
10.99
11.14
11.29
11.59
11.89
8.95
10.74
6.50
11.54
9.57
8.22
11.04
9.87
11.19
11.34
10.18
10.48
11.64
10.78
6.58

11.19
8.86
10.89
13.18
10.58
13.03
10.28
12.88
12.73
12.44
12.14
11.99
12.38
13.08
12.93
12.78
12.48
12.18
12.03
11.88
11.58
11.28
10.98
10.68
10.37
9.76
9.00
7.27
12.43
9.04
11.93
12.08
12.23
12.53
12.83
9.85
12.98
10.47
10.77
11.07
12.48
11.38
11.68
7.44
11.98
12.13
12.28
12.58
12.88
9.95
11.72
7.53
12.53
10.56
9.22
12.03
10.86
12.17
12.32
11.17
11.47
12.62
11.77
7.61

12.17
9.85
11.87
14.16
11.57
14.01
11.27
13.86
13.72
13.42
13.12
12.97
13.37
14.06
13.91
13.76
13.46
13.16
13.02
12.87
12.57
12.26
11.96
11.66
11.36
10.75
9.99
8.28
13.41
10.03
12.91
13.06
13.21
13.51
13.81
10.84
13.96
11.45
11.75
12.06
13.46
12.36
12.66
8.45
12.96
13.11
13.26
13.56
13.86
10.93
12.71
8.54
13.51
11.54
10.21
13.01
11.85
13.16
13.31
12.15
12.45
13.61
12.75
8.62

13.16
10.84
12.86
15.15
12.56
15.00
12.26
14.85
14.70
14.40
14.10
13.95
14.35
15.05
14.90
14.75
14.45
14.15
14.00
13.85
13.55
13.25
12.95
12.65
12.35
11.74
10.98
9.28
14.40
11.03
13.90
14.05
14.20
14.50
14.80
11.83
14.95
12.44
12.74
13.05
14.45
13.35
13.65
9.46
13.95
14.10
14.25
14.55
14.84
11.93
13.69
9.54
14.49
12.53
11.21
13.99
12.84
14.14
14.29
13.14
13.44
14.59
13.74
9.63

15.13
12.83
14.83
17.12
14.53
16.97
14.23
16.82
16.67
16.37
16.08
15.93
16.32
17.02
16.87
16.72
16.42
16.12
15.98
15.83
15.53
15.23
14.93
14.63
14.33
13.72
12.96
11.28
16.37
13.01
15.87
16.02
16.17
16.47
16.77
13.82
16.92
14.42
14.72
15.02
16.42
15.32
15.62
11.46
15.92
16.07
16.22
16.52
16.82
13.91
15.67
11.55
16.47
14.51
13.19
15.97
14.81
16.12
16.27
15.12
15.42
16.57
15.72
11.64

18.09
15.79
17.79
20.07
17.49
19.93
17.19
19.78
19.63
19.33
19.03
18.88
19.28
19.97
19.83
19.68
19.38
19.08
18.93
18.78
18.49
18.19
17.89
17.59
17.29
16.69
15.93
14.26
19.33
15.98
18.83
18.98
19.13
19.43
19.73
16.78
19.87
17.38
17.68
17.98
19.38
18.28
18.58
14.45
18.88
19.03
19.18
19.48
19.77
16.87
18.63
14.54
19.43
17.48
16.17
18.93
17.78
19.08
19.23
18.08
18.38
19.52
18.68
14.63

21.04
18.75
20.75
23.03
20.45
22.88
20.15
22.73
22.58
22.28
21.99
21.84
22.23
22.93
22.78
22.63
22.33
22.03
21.89
21.74
21.44
21.14
20.84
20.54
20.24
19.64
18.89
17.23
22.28
18.94
21.78
21.93
22.08
22.38
22.68
19.74
22.83
20.34
20.64
20.94
22.33
21.24
21.53
17.42
21.83
21.98
22.13
22.43
22.73
19.83
21.58
17.51
22.38
20.43
19.13
21.88
20.73
22.03
22.18
21.03
21.33
22.48
21.63
17.60

24.00
21.71
23.70
25.98
23.41
25.83
23.11
25.68
25.54
25.24
24.94
24.79
25.19
25.88
25.73
25.59
25.29
24.99
24.84
24.69
24.40
24.10
23.80
23.50
23.20
22.60
21.86
20.20
25.24
21.90
24.74
24.89
25.04
25.34
25.63
22.70
25.78
23.30
23.60
23.90
25.29
24.19
24.49
20.39
24.79
24.94
25.09
25.38
25.68
22.79
24.54
20.48
25.33
23.39
22.09
24.84
23.69
24.99
25.13
23.99
24.29
25.43
24.59
20.57

26.95
24.67
26.66
28.93
26.36
28.78
26.06
28.64
28.49
28.19
27.89
27.74
28.14
28.83
28.68
28.54
28.24
27.94
27.79
27.64
27.35
27.05
26.75
26.45
26.16
25.56
24.81
23.16
28.19
24.86
27.69
27.84
27.99
28.29
28.58
25.65
28.73
26.25
26.55
26.85
28.24
27.15
27.44
23.35
27.74
27.89
28.04
28.34
28.63
25.75
27.49
23.44
28.29
26.35
25.05
27.79
26.65
27.94
28.09
26.94
27.24
28.38
27.54
23.54

29.32
27.04
29.02
31.30
28.72
31.15
28.43
31.00
30.85
30.56
30.26
30.11
30.51
31.20
31.05
30.90
30.60
30.31
30.16
30.01
29.71
29.42
29.12
28.82
28.52
27.93
27.18
25.53
30.55
27.23
30.06
30.21
30.36
30.65
30.95
28.02
31.10
28.62
28.92
29.21
30.60
29.51
29.81
25.72
30.11
30.26
30.40
30.70
31.00
28.12
29.86
25.81
30.65
28.72
27.42
30.16
29.01
30.30
30.45
29.31
29.61
30.75
29.91
25.91

36.80
34.52
36.51
38.78
36.21
38.63
35.91
38.48
38.33
38.04
37.74
37.59
37.99
38.68
38.53
38.38
38.09
37.79
37.64
37.49
37.20
36.90
36.60
36.30
36.01
35.41
34.67
33.03
38.04
34.72
37.54
37.69
37.84
38.13
38.43
35.51
38.58
36.10
36.40
36.70
38.08
37.00
37.29
33.22
37.59
37.74
37.89
38.18
38.48
35.60
37.34
33.31
38.13
36.20
34.91
37.64
36.50
37.79
37.93
36.80
37.09
38.23
37.39
33.41

1.875
1.875
1.882
1.889
1.889
1.895
1.895
1.900
1.905
1.913
1.920
1.923
1.957
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.045
2.045
2.080
2.083
2.087
2.095
2.105
2.105
2.111
2.118
2.125
2.133
2.143
2.143
2.154
2.154
2.167
2.174
2.182
2.200
2.222
2.222
2.240
2.240
2.250
2.250
2.250
2.261
2.267
2.273
2.286
2.286
2.308
2.316
2.333
2.333

1.00

1.01

1.03

1.05

1.06

1.09

1.13

1.16

1.19

1.22

1.24

1.29

No. of
grooves

No. of
grooves

32
48
34
18
36
19
38
20
21
23
25
26
23
18
19
20
22
24
25
26
28
30
32
34
36
40
45
56
22
44
25
24
23
21
19
38
18
34
32
30
21
28
26
52
24
23
22
20
18
36
25
50
20
32
40
23
30
22
21
28
26
19
24
48

60
90
64
34
68
36
72
38
40
44
48
50
45
36
38
40
44
48
50
52
56
60
64
68
72
80
90
112
45
90
52
50
48
44
40
80
38
72
68
64
45
60
56
112
52
50
48
44
40
80
56
112
45
72
90
52
68
50
48
64
60
44
56
112

*This length correction factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 25

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

Length Factor*

4.22
4.75

4.63
5.15

5.13
5.65

3.96
6.13
6.64

3.37
3.53

3.78
3.94
2.99

4.28
4.44
3.52

4.38
4.54
3.62

4.78
4.94
4.03

2.92
3.85

3.33
4.25

3.25

3.66

3.85
4.75
3.22
4.17

3.95
4.85
3.33
4.27

3.41
4.35
5.25
3.75
4.67

5.29
5.44
4.54
3.60
3.93
4.86
5.75
4.26
5.18

6.28
6.43
5.55
4.63
4.96
5.86
6.74
5.28
6.17

6.98
7.13
6.25
5.35
5.67
6.56
7.43
5.98
6.87

2.67

3.79
3.42

4.19
3.82
3.03

4.70
4.33
3.56

4.79
4.43
3.66

5.20
4.83
4.07

5.70
5.33
4.59

6.69
6.33
5.59
4.05

7.38
7.02
6.29
4.78

2.44

3.58
2.96

3.98
3.37

4.48
3.89

4.58
3.99

4.98
4.40

5.49
4.90

6.48
5.90

7.17
6.60

3.26

3.37

3.79

4.31
3.68
5.22
4.63
4.02
5.38

5.32
4.72
6.22
5.64
5.04
6.37

6.03
5.43
6.91
6.34
5.75
7.07

6.52
5.95
5.36
4.13
5.08
5.68
6.26
4.80
6.41
5.41
5.99

2.48

0.77

4.21
3.60

4.31
3.70

3.46

3.86

4.37

4.47

4.72
4.12
3.49
4.87

3.62
3.00

4.02
3.41

4.53
3.93
3.30

4.63
4.03
3.41

5.03
4.44
3.83

5.53
4.95
4.35

3.33

3.11
3.74

3.64
4.25

3.74
4.35

3.53
4.16
4.76

3.50

3.90

3.04

3.45

4.41
3.34
3.97

4.51
3.45
4.07

4.92
3.87
4.48

4.06
4.67
5.26
3.76
5.42
4.39
4.99

4.10
4.71

3.15

3.68

3.78

3.57
4.20

3.38

3.78

3.08

3.49

4.30
3.38
4.02

4.40
3.49
4.11

3.25
4.80
3.91
4.52

3.80
5.31
4.43
5.03

5.13
5.72
4.21
4.84
6.31
5.45
6.04

3.19

3.72

3.17
3.83

3.61
4.24
3.29

4.14
4.76
3.84

5.17
5.77
4.88

3.42

3.53

3.95

4.47

5.49
4.28
5.21
6.08

5MR-600
P.L 23.622
120 teeth

4.13
4.65

3.70
3.07

5MR-580
P.L 22.835
116 teeth

3.62
4.15

3.29

5MR-565
P.L 22.244
113 teeth

5MR-500
P.L 19.685
100 teeth

2.63

3.21
3.75

2.73

5MR-535
P.L 21.063
107 teeth

5MR-450
P.L 17.716
90 teeth

2.353
2.364
2.368
2.368
2.381
2.400
2.400
2.400
2.429
2.435
2.444
2.462
2.476
2.489
2.500
2.500
2.500
2.500
2.500
2.526
2.545
2.545
2.560
2.571
2.600
2.609
2.615
2.632
2.647
2.667
2.667
2.667
2.667
2.720
2.727
2.737
2.769
2.778
2.783
2.800
2.800
2.813
2.833
2.857
2.857
2.880
2.889
2.909
2.947
2.947
2.957
3.000
3.000
3.000
3.048
3.077
3.091
3.111
3.111
3.130
3.158
3.200
3.200
3.214

5MR-425
P.L 16.732
85 teeth

5.013
3.258
2.820
5.639
3.133
3.008
3.760
4.511
4.261
3.509
2.757
4.010
3.258
7.018
2.820
3.133
3.760
5.013
5.639
3.008
3.509
7.018
4.010
4.511
3.258
3.760
4.261
3.133
5.639
3.008
3.509
4.010
5.013
4.261
3.760
3.258
4.511
3.133
4.010
3.509
7.018
5.639
4.261
3.760
5.013
4.511
3.258
4.010
3.509
7.018
4.261
3.760
4.511
5.639
4.010
5.013
4.261
3.509
7.018
4.511
3.760
4.010
5.013
5.639

5MR-405
P.L 15.945
81 teeth

80
52
45
90
50
48
60
72
68
56
44
64
52
112
45
50
60
80
90
48
56
112
64
72
52
60
68
50
90
48
56
64
80
68
60
52
72
50
64
56
112
90
68
60
80
72
52
64
56
112
68
60
72
90
64
80
68
56
112
72
60
64
80
90

Speed
Ratio

5MR-400
P.L 15.748
80 teeth

2.130
1.379
1.191
2.381
1.316
1.253
1.566
1.880
1.754
1.441
1.128
1.629
1.316
2.820
1.128
1.253
1.504
2.005
2.256
1.191
1.379
2.757
1.566
1.754
1.253
1.441
1.629
1.191
2.130
1.128
1.316
1.504
1.880
1.566
1.379
1.191
1.629
1.128
1.441
1.253
2.506
2.005
1.504
1.316
1.754
1.566
1.128
1.379
1.191
2.381
1.441
1.253
1.504
1.880
1.316
1.629
1.379
1.128
2.256
1.441
1.191
1.253
1.566
1.754

Pitch
Diameter
(Inches)

5MR-375
P.L 14.764
75 teeth

34
22
19
38
21
20
25
30
28
23
18
26
21
45
18
20
24
32
36
19
22
44
25
28
20
23
26
19
34
18
21
24
30
25
22
19
26
18
23
20
40
32
24
21
28
25
18
22
19
38
23
20
24
30
21
26
22
18
36
23
19
20
25
28

No.
of
Grooves

5MR-355
P.L 13.976
71 teeth

Pitch
Diameter
(Inches)

5MR-300
P.L 11.811
60 teeth

No.
of
Grooves

Center Distance, Inches

4.70
6.82
7.33

5.31
7.42
7.93
4.52
7.57
7.72
6.85
5.95
6.27
7.16
8.03
6.58
7.46

5.62
7.72
8.22
4.84
7.87
8.02
7.15
6.26
6.57
7.46
8.32
6.88
7.76

6.03
8.11
8.62
5.26
8.27
8.42
7.55
6.66
6.97
7.85
8.72
7.28
8.16

7.97
7.62
6.89
5.40
4.60
7.77
7.20

8.27
7.91
7.19
5.70
4.92
8.07
7.50

8.67
8.31
7.59
6.11
5.34
8.46
7.90

7.22
6.65
6.07
4.86
5.80
6.38
6.96
5.52
7.11
6.11
6.69

6.63
6.04
7.51
6.94
6.36
7.66
4.69
7.81
7.25
6.67
5.48
6.40
6.98
7.55
6.13
7.71
6.72
7.29

6.93
6.34
7.81
7.24
6.66
7.96
5.00
8.11
7.55
6.97
5.79
6.70
7.28
7.85
6.43
8.01
7.02
7.59

7.33
6.75
8.21
7.64
7.06
8.36
5.42
8.51
7.94
7.37
6.20
7.11
7.68
8.25
6.84
8.40
7.42
7.99

4.12
5.84
6.43
4.94
5.56
7.00
6.16
6.74

4.77
6.44
7.03
5.56
6.17
7.60
6.76
7.34

5.08
6.75
7.33
5.87
6.47
7.90
7.06
7.64

5.50
7.15
7.73
6.28
6.88
8.30
7.46
8.03

5.88
6.47
5.60
4.20
6.20
5.03
5.92
6.78

6.49
7.07
6.21
4.85
6.80
5.65
6.53
7.38

6.79
7.37
6.52
5.16
7.10
5.96
6.83
7.68

7.19
7.77
6.92
5.59
7.51
6.37
7.24
8.08

3.12

3.54

4.06

3.21
4.16

3.65
4.57

4.18
5.08

2.80

3.23

3.77
3.46

3.87
3.57

3.33
4.28
3.99

3.88
4.80
4.51

4.92
5.81
5.53
4.32

5.65
6.51
6.24
5.07
4.27

6.26
7.12
6.85
5.69
4.93

6.56
7.41
7.15
6.00
5.24

6.97
7.82
7.55
6.41
5.67

0.81

0.83

0.84

0.85

0.86

0.88

0.90

0.92

0.94

0.95

0.95

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 26

R

The Gates Rubber Company

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

5MR-750
P.L 29.528
150 teeth

5MR-800
P.L 31.496
160 teeth

5MR-850
P.L 33.465
170 teeth

5MR-900
P.L 35.433
180 teeth

5MR-1000
P.L 39.370
200 teeth

5MR-1150
P.L 45.276
230 teeth

5MR-1300
P.L 51.181
260 teeth

5MR-1450
P.L 57.087
290 teeth

5MR-1600
P.L 62.992
320 teeth

5MR-1720
P.L 67.716
344 teeth

5MR-2100
P.L 82.677
420 teeth

9.17
8.81
8.09
6.62
5.86
8.96
8.40

9.66
9.30
8.59
7.12
6.37
9.45
8.89

7.83
7.25
8.70
8.14
7.56
8.86
5.94
9.01
8.44
7.87
6.71
7.61
8.18
8.75
7.34
8.90
7.92
8.49

8.33
7.75
9.20
8.63
8.06
9.35
6.45
9.50
8.94
8.37
7.21
8.11
8.68
9.24
7.84
9.39
8.42
8.98

6.03
7.65
8.23
6.79
7.38
8.80
7.96
8.53

6.54
8.15
8.72
7.30
7.88
9.29
8.46
9.03

7.70
8.27
7.43
6.11
8.01
6.88
7.74
8.58

0.97

5MR-700
P.L 27.559
140 teeth

6.54
8.61
9.12
5.77
8.76
8.92
8.05
7.16
7.48
8.35
9.22
7.78
8.66

7.47
8.32
8.05
6.92
6.19

5MR-650
P.L 25.590
130 teeth

5MR-625
P.L 24.606
125 teeth

Center Distance, Inches
Speed
Ratio

7.04
9.10
9.61
6.28
9.26
9.41
8.54
7.66
7.97
8.85
9.71
8.28
9.15

8.20
8.77
7.93
6.62
8.51
7.38
8.24
9.07
4.92
7.97
8.81
8.55
7.43
6.71

8.04
10.09
10.60
7.30
10.25
10.40
9.53
8.66
8.97
9.84
10.70
9.27
10.14
5.66
10.65
10.29
9.58
8.13
7.38
10.44
9.88
5.70
9.32
8.75
10.19
9.63
9.06
10.34
7.47
10.49
9.93
9.37
8.22
9.10
9.67
10.23
8.84
10.38
9.41
9.98
5.86
7.56
9.15
9.72
8.30
8.88
10.28
9.46
10.02
5.94
9.19
9.76
8.93
7.64
9.50
8.39
9.24
10.07
6.02
8.97
9.81
9.55
8.44
7.73

9.04
11.08
11.59
8.31
11.23
11.38
10.52
9.66
9.96
10.83
11.69
10.27
11.13
6.71
11.63
11.28
10.57
9.13
8.39
11.43
10.87
6.75
10.31
9.75
11.18
10.62
10.05
11.33
8.48
11.48
10.92
10.36
9.22
10.10
10.66
11.22
9.84
11.37
10.40
10.97
6.91
8.57
10.14
10.71
9.31
9.88
11.27
10.45
11.01
7.00
10.19
10.75
9.93
8.65
10.50
9.40
10.23
11.06
7.08
9.97
10.80
10.54
9.44
8.74

10.04
12.07
12.57
9.31
12.22
12.37
11.51
10.65
10.95
11.82
12.67
11.26
12.12
7.74
12.62
12.27
11.56
10.13
9.40
12.42
11.86
7.78
11.30
10.74
12.17
11.61
11.05
12.32
9.49
12.47
11.91
11.35
10.22
11.09
11.65
12.21
10.83
12.36
11.40
11.96
7.95
9.57
11.14
11.70
10.31
10.88
12.26
11.44
12.00
8.03
11.18
11.75
10.92
9.66
11.49
10.40
11.23
12.05
8.11
10.97
11.79
11.53
10.44
9.75

11.03
13.05
13.56
10.30
13.20
13.35
12.50
11.64
11.94
12.80
13.65
12.24
13.10
8.75
13.60
13.25
12.54
11.12
10.39
13.40
12.85
8.79
12.29
11.73
13.15
12.59
12.03
13.30
10.48
13.45
12.89
12.34
11.21
12.08
12.64
13.20
11.82
13.35
12.38
12.94
8.96
10.57
12.12
12.68
11.30
11.87
13.24
12.43
12.99
9.05
12.17
12.73
11.91
10.66
12.47
11.39
12.22
13.03
9.13
11.96
12.78
12.52
11.43
10.75

12.02
14.04
14.54
11.30
14.19
14.34
13.49
12.63
12.93
13.79
14.64
13.23
14.09
9.76
14.59
14.24
13.53
12.11
11.39
14.39
13.83
9.81
13.28
12.72
14.14
13.58
13.02
14.29
11.48
14.44
13.88
13.33
12.20
13.07
13.63
14.18
12.81
14.33
13.37
13.93
9.98
11.57
13.11
13.67
12.29
12.86
14.23
13.42
13.98
10.06
13.16
13.72
12.90
11.66
13.46
12.38
13.21
14.02
10.15
12.95
13.77
13.51
12.43
11.75

14.00
16.02
16.51
13.29
16.17
16.31
15.46
14.61
14.91
15.76
16.61
15.21
16.06
11.77
16.56
16.21
15.51
14.09
13.38
16.36
15.81
11.82
15.26
14.70
16.11
15.56
15.00
16.26
13.47
16.41
15.86
15.30
14.18
15.05
15.60
16.16
14.79
16.31
15.35
15.90
11.99
13.56
15.09
15.65
14.28
14.84
16.21
15.40
15.95
12.08
15.14
15.70
14.88
13.65
15.44
14.37
15.19
16.00
12.17
14.93
15.74
15.49
14.41
13.74

16.97
18.97
19.47
16.26
19.12
19.27
18.42
17.57
17.87
18.72
19.57
18.17
19.02
14.76
19.52
19.17
18.47
17.06
16.35
19.32
18.77
14.81
18.22
17.67
19.07
18.52
17.97
19.22
16.44
19.37
18.82
18.27
17.15
18.01
18.57
19.12
17.76
19.27
18.31
18.87
14.99
16.54
18.06
18.61
17.25
17.81
19.17
18.36
18.91
15.08
18.11
18.66
17.85
16.63
18.41
17.34
18.15
18.96
15.17
17.90
18.71
18.45
17.39
16.72

19.93
21.93
22.42
19.22
22.08
22.23
21.38
20.53
20.83
21.68
22.52
21.13
21.98
17.74
22.47
22.13
21.43
20.02
19.32
22.27
21.72
17.78
21.18
20.62
22.02
21.47
20.92
22.17
19.41
22.32
21.77
21.22
20.12
20.97
21.52
22.07
20.72
22.22
21.27
21.82
17.97
19.50
21.02
21.57
20.21
20.76
22.12
21.32
21.87
18.06
21.06
21.62
20.81
19.59
21.36
20.30
21.11
21.92
18.15
20.86
21.66
21.41
20.35
19.69

22.89
24.89
25.38
22.19
25.03
25.18
24.34
23.49
23.79
24.64
25.48
24.09
24.93
20.71
25.43
25.08
24.38
22.98
22.28
25.23
24.68
20.76
24.13
23.58
24.98
24.43
23.88
25.13
22.37
25.28
24.73
24.18
23.08
23.93
24.48
25.03
23.68
25.18
24.23
24.78
20.94
22.47
23.98
24.53
23.17
23.73
25.08
24.28
24.83
21.04
24.03
24.58
23.77
22.56
24.32
23.27
24.07
24.87
21.13
23.82
24.62
24.37
23.31
22.66

25.84
27.84
28.33
25.14
27.99
28.13
27.29
26.44
26.74
27.59
28.43
27.04
27.89
23.68
28.38
28.03
27.34
25.94
25.24
28.18
27.64
23.72
27.09
26.54
27.93
27.39
26.84
28.08
25.33
28.23
27.68
27.14
26.03
26.88
27.43
27.98
26.63
28.13
27.18
27.73
23.91
25.43
26.93
27.48
26.13
26.68
28.03
27.23
27.78
24.00
26.98
27.53
26.73
25.52
27.28
26.22
27.03
27.83
24.09
26.78
27.58
27.33
26.27
25.61

28.21
30.20
30.70
27.51
30.35
30.50
29.66
28.81
29.11
29.95
30.80
29.41
30.25
26.05
30.75
30.40
29.70
28.31
27.61
30.55
30.00
26.10
29.46
28.91
30.30
29.75
29.20
30.45
27.70
30.60
30.05
29.50
28.40
29.25
29.80
30.35
29.00
30.50
29.55
30.10
26.28
27.80
29.30
29.85
28.50
29.05
30.40
29.60
30.15
26.38
29.35
29.90
29.10
27.89
29.65
28.59
29.40
30.19
26.47
29.14
29.94
29.69
28.64
27.99

35.70
37.69
38.18
35.00
37.83
37.98
37.14
36.30
36.59
37.44
38.28
36.89
37.74
33.55
38.23
37.88
37.19
35.80
35.10
38.03
37.49
33.60
36.94
36.39
37.78
37.24
36.69
37.93
35.19
38.08
37.53
36.99
35.89
36.74
37.28
37.83
36.49
37.98
37.04
37.58
33.78
35.29
36.79
37.33
35.99
36.54
37.88
37.08
37.63
33.88
36.83
37.38
36.58
35.38
37.13
36.08
36.88
37.68
33.97
36.63
37.43
37.18
36.13
35.48

2.353
2.364
2.368
2.368
2.381
2.400
2.400
2.400
2.429
2.435
2.444
2.462
2.476
2.489
2.500
2.500
2.500
2.500
2.500
2.526
2.545
2.545
2.560
2.571
2.600
2.609
2.615
2.632
2.647
2.667
2.667
2.667
2.667
2.720
2.727
2.737
2.769
2.778
2.783
2.800
2.800
2.813
2.833
2.857
2.857
2.880
2.889
2.909
2.947
2.947
2.957
3.000
3.000
3.000
3.048
3.077
3.091
3.111
3.111
3.130
3.158
3.200
3.200
3.214

0.98

1.00

1.01

1.03

1.05

1.06

1.09

1.13

1.16

1.19

1.22

1.24

1.29

No. of
grooves

No. of
grooves

34
22
19
38
21
20
25
30
28
23
18
26
21
45
18
20
24
32
36
19
22
44
25
28
20
23
26
19
34
18
21
24
30
25
22
19
26
18
23
20
40
32
24
21
28
25
18
22
19
38
23
20
24
30
21
26
22
18
36
23
19
20
25
28

80
52
45
90
50
48
60
72
68
56
44
64
52
112
45
50
60
80
90
48
56
112
64
72
52
60
68
50
90
48
56
64
80
68
60
52
72
50
64
56
112
90
68
60
80
72
52
64
56
112
68
60
72
90
64
80
68
56
112
72
60
64
80
90

*This length correction factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 27

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

Length Factor*

5MR-500
P.L 19.685
100 teeth

5MR-535
P.L 21.063
107 teeth

5MR-565
P.L 22.244
113 teeth

5MR-580
P.L 22.835
116 teeth

5MR-600
P.L 23.622
120 teeth

2.84

5MR-450
P.L 17.716
90 teeth

3.238
3.273
3.294
3.333
3.333
3.368
3.400
3.429
3.462
3.478
3.500
3.556
3.579
3.600
3.600
3.636
3.733
3.750
3.778
3.789
3.810
3.913
4.000
4.000
4.000
4.091
4.211
4.286
4.308
4.444
4.480
4.500
4.667
4.737
4.870
5.000
5.091
5.333
5.600
5.895
6.222

5MR-375
P.L 14.764
75 teeth

4.261
4.511
7.018
3.760
5.013
4.010
4.261
4.511
5.639
5.013
7.018
4.010
4.261
4.511
5.639
5.013
7.018
5.639
4.261
4.511
5.013
5.639
4.511
5.013
7.018
5.639
5.013
5.639
7.018
5.013
7.018
5.639
7.018
5.639
7.018
5.639
7.018
7.018
7.018
7.018
7.018

5MR-425
P.L 16.732
85 teeth

68
72
112
60
80
64
68
72
90
80
112
64
68
72
90
80
112
90
68
72
80
90
72
80
112
90
80
90
112
80
112
90
112
90
112
90
112
112
112
112
112

Speed
Ratio

5MR-405
P.L 15.945
81 teeth

1.316
1.379
2.130
1.128
1.504
1.191
1.253
1.316
1.629
1.441
2.005
1.128
1.191
1.253
1.566
1.379
1.880
1.504
1.128
1.191
1.316
1.441
1.128
1.253
1.754
1.379
1.191
1.316
1.629
1.128
1.566
1.253
1.504
1.191
1.441
1.128
1.379
1.316
1.253
1.191
1.128

Pitch
Diameter
(Inches)

5MR-400
P.L 15.748
80 teeth

21
22
34
18
24
19
20
21
26
23
32
18
19
20
25
22
30
24
18
19
21
23
18
20
28
22
19
21
26
18
25
20
24
19
23
18
22
21
20
19
18

No.
of
Grooves

5MR-355
P.L 13.976
71 teeth

Pitch
Diameter
(Inches)

5MR-300
P.L 11.811
60 teeth

No.
of
Grooves

Center Distance, Inches

3.14

3.25

3.69
3.37

4.22
3.92

5.25
4.96

5.97
5.69

6.57
6.30

6.88
6.60

7.28
7.01

3.27

3.81

3.91

4.32

4.84

2.95

3.50
3.18

3.61
3.29

4.03
3.73
3.41

4.56
4.26
3.96

5.85
4.36
5.58
5.29
5.01

6.56
5.11
6.29
6.01
5.73
4.35
5.15

7.16
5.73
6.89
6.62
6.34
5.00
5.77

7.46
6.04
7.19
6.92
6.65
5.32
6.08

7.86
6.45
7.59
7.32
7.05
5.75
6.49

6.33
6.05
5.77
4.39
5.19

6.93
6.66
6.38
5.04
5.81

7.24
6.96
6.69
5.36
6.12

7.64
7.37
7.10
5.79
6.54

5.08
6.70
6.43
5.85
5.12
6.47
5.90

5.40
7.01
6.73
6.16
5.44
6.77
6.21

5.83
7.41
7.14
6.58
5.87
7.18
6.62

4.40
2.99

3.54
3.22

3.65
3.33

4.07
3.77
3.45

4.60
4.30
4.00

5.62
5.34
5.05
4.44

3.26

3.37
3.02

3.81
3.48

4.34
4.04
3.37

5.38
5.09
4.48

3.06

3.52

4.07
3.41

5.13
4.52

4.43
6.10
5.81
5.23
4.47
5.86
5.27

3.44

3.70
4.56
3.73

4.50
5.31
4.54

5.16
5.94
5.20

5.48
6.25
5.52

5.91
6.66
5.95

3.48

4.60

5.35

5.98

6.29

6.70

3.77

4.58

5.24

5.56

5.99

3.81

4.62

5.28

5.60

6.03

3.84

4.66

5.32

5.64

6.07

4.31
4.34
4.38
0.77

0.81

0.83

0.84

0.85

0.86

0.88

0.90

0.92

0.94

0.95

0.95

*This length factor must be used to determine the proper belt width.
Teeth in Mesh Factor:

1.0

0.8

0.6

Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 28

R

The Gates Rubber Company

5mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

5MR-625
P.L 24.606
125 teeth

5MR-650
P.L 25.590
130 teeth

5MR-700
P.L 27.559
140 teeth

5MR-750
P.L 29.528
150 teeth

5MR-800
P.L 31.496
160 teeth

5MR-850
P.L 33.465
170 teeth

5MR-900
P.L 35.433
180 teeth

5MR-1000
P.L 39.370
200 teeth

5MR-1150
P.L 45.276
230 teeth

5MR-1300
P.L 51.181
260 teeth

5MR-1450
P.L 57.087
290 teeth

5MR-1600
P.L 62.992
320 teeth

5MR-1720
P.L 67.716
344 teeth

5MR-2100
P.L 82.677
420 teeth

Center Distance, Inches
Speed
Ratio

7.79
7.52

8.28
8.02
5.00
8.86
7.47
8.59
8.33
8.06
6.79
7.51
5.08
8.64
8.37
8.10
6.83
7.56
5.15
6.87
8.42
8.15
7.60
6.91
8.19
7.64
5.23
6.95
7.68
7.00
5.30
7.73
5.34
7.04
5.38
7.08
5.42
7.12
5.45
5.49
5.53
5.57
5.60

9.28
9.02
6.10
9.85
8.48
9.59
9.33
9.06
7.81
8.52
6.18
9.64
9.37
9.11
7.86
8.57
6.26
7.90
9.42
9.15
8.61
7.94
9.20
8.65
6.34
7.98
8.70
8.02
6.41
8.74
6.45
8.07
6.49
8.11
6.53
8.15
6.57
6.61
6.65
6.69
6.73

10.28
10.02
7.16
10.85
9.48
10.59
10.32
10.06
8.83
9.53
7.24
10.63
10.37
10.11
8.87
9.57
7.32
8.91
10.41
10.15
9.62
8.96
10.20
9.66
7.40
9.00
9.70
9.04
7.48
9.75
7.52
9.09
7.56
9.13
7.60
9.17
7.64
7.68
7.72
7.76
7.80

11.27
11.01
8.20
11.84
10.48
11.58
11.32
11.06
9.84
10.53
8.28
11.63
11.36
11.10
9.88
10.57
8.36
9.92
11.41
11.15
10.62
9.97
11.19
10.66
8.45
10.01
10.71
10.05
8.53
10.75
8.57
10.10
8.61
10.14
8.65
10.18
8.69
8.73
8.78
8.82
8.86

12.26
12.00
9.22
12.82
11.48
12.57
12.31
12.05
10.84
11.52
9.30
12.61
12.35
12.09
10.88
11.57
9.39
10.92
12.40
12.14
11.61
10.97
12.18
11.66
9.47
11.01
11.70
11.06
9.56
11.75
9.60
11.10
9.64
11.14
9.68
11.19
9.72
9.77
9.81
9.85
9.89

13.25
12.99
10.24
13.81
12.47
13.56
13.30
13.04
11.84
12.52
10.32
13.60
13.34
13.09
11.88
12.56
10.41
11.93
13.39
13.13
12.61
11.97
13.18
12.65
10.49
12.01
12.70
12.06
10.58
12.74
10.62
12.10
10.66
12.15
10.71
12.19
10.75
10.79
10.83
10.88
10.92

15.23
14.98
12.26
15.79
14.46
15.54
15.28
15.02
13.83
14.51
12.34
15.58
15.33
15.07
13.88
14.55
12.43
13.92
15.37
15.12
14.60
13.97
15.16
14.64
12.52
14.01
14.69
14.06
12.60
14.73
12.65
14.10
12.69
14.15
12.73
14.19
12.78
12.82
12.86
12.91
12.95

18.20
17.95
15.26
18.75
17.43
18.50
18.25
17.99
16.81
17.48
15.35
18.55
18.29
18.04
16.86
17.53
15.44
16.90
18.34
18.09
17.57
16.95
18.13
17.62
15.53
16.99
17.66
17.04
15.62
17.71
15.66
17.09
15.70
17.13
15.75
17.18
15.79
15.84
15.88
15.93
15.97

21.16
20.91
18.24
21.71
20.40
21.46
21.21
20.95
19.78
20.44
18.33
21.51
21.25
21.00
19.83
20.49
18.42
19.87
21.30
21.05
20.54
19.92
21.09
20.58
18.51
19.96
20.63
20.01
18.60
20.68
18.65
20.06
18.69
20.10
18.74
20.15
18.78
18.83
18.87
18.92
18.96

24.12
23.87
21.22
24.67
23.36
24.42
24.17
23.92
22.75
23.41
21.31
24.47
24.21
23.96
22.80
23.45
21.40
22.84
24.26
24.01
23.50
22.89
24.06
23.55
21.49
22.93
23.59
22.98
21.59
23.64
21.63
23.03
21.68
23.07
21.72
23.12
21.77
21.81
21.86
21.90
21.95

27.07
26.82
24.19
27.62
26.32
27.37
27.12
26.87
25.71
26.37
24.28
27.42
27.17
26.92
25.76
26.41
24.37
25.80
27.22
26.97
26.46
25.85
27.01
26.51
24.46
25.90
26.55
25.94
24.56
26.60
24.60
25.99
24.65
26.04
24.69
26.08
24.74
24.79
24.83
24.88
24.92

29.44
29.19
26.56
29.99
28.69
29.74
29.49
29.24
28.08
28.74
26.66
29.79
29.54
29.29
28.13
28.78
26.75
28.17
29.59
29.33
28.83
28.22
29.38
28.88
26.84
28.27
28.92
28.32
26.93
28.97
26.98
28.36
27.03
28.41
27.07
28.46
27.12
27.16
27.21
27.26
27.30

36.93
36.68
34.07
37.48
36.18
37.23
36.98
36.73
35.58
36.23
34.16
37.28
37.03
36.78
35.62
36.27
34.26
35.67
37.07
36.82
36.32
35.72
36.87
36.37
34.35
35.76
36.42
35.81
34.44
36.47
34.49
35.86
34.54
35.91
34.58
35.95
34.63
34.68
34.72
34.77
34.82

3.238
3.273
3.294
3.333
3.333
3.368
3.400
3.429
3.462
3.478
3.500
3.556
3.579
3.600
3.600
3.636
3.733
3.750
3.778
3.789
3.810
3.913
4.000
4.000
4.000
4.091
4.211
4.286
4.308
4.444
4.480
4.500
4.667
4.737
4.870
5.000
5.091
5.333
5.600
5.895
6.222

0.98

1.00

1.01

1.03

1.05

1.06

1.09

1.13

1.16

1.19

1.22

1.24

1.29

8.36
6.96
8.10
7.83
7.56
6.27
7.01
8.14
7.87
7.60
6.31
7.05
6.36
7.92
7.65
7.09
6.40
7.69
7.13
4.65
6.44
7.18
6.48
4.72
7.22
4.76
6.52
4.79
6.56
4.83
6.60
4.87
4.90
4.94
4.98
5.01
0.97

No. of
grooves

21
22
34
18
24
19
20
21
26
23
32
18
19
20
25
22
30
24
18
19
21
23
18
20
28
22
19
21
26
18
25
20
24
19
23
18
22
21
20
19
18

No. of
grooves

68
72
112
60
80
64
68
72
90
80
112
64
68
72
90
80
112
90
68
72
80
90
72
80
112
90
80
90
112
80
112
90
112
90
112
90
112
112
112
112
112

*This length factor must be used to determine the proper belt width.
Teeth in Mesh Factor:

1.0

0.8

0.6

Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 29

8mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

Length Factor*

4.88
5.20
5.51
5.83
6.14
6.46
6.77
7.09
7.40

5.67
5.98
6.30
6.61
6.93
7.24
7.56
7.87
8.19

5.04

5.19
5.82

4.09

5.35
5.67

6.14
6.45

4.41
4.72

5.98
6.30

6.77
7.08

5.04

6.61

3.46

5.35

6.93

7.40
5.34
7.71

3.77

5.67

5.19
7.24
5.50
5.82

5.98
8.03
6.29
6.61

6.14
4.71
6.45
6.77
5.34

6.92
5.50
7.24
7.55
6.13

3.31
3.62
3.94

4.25
4.57
4.88
5.20
5.51
5.83

4.24
4.56

3.29

4.87
5.19

3.61

4.08
5.50

5.66
7.08

5.01
6.44
7.87

4.39

5.97

6.76

4.71
5.02

4.86
6.29
6.60
5.49

5.65
7.07
7.39
6.28
5.16

0.80

0.80

0.80

0.70

1160-8MGT
P.L 45.669
145 teeth

8.34
8.03
7.71
7.40
7.09
6.77
6.46
6.14
5.83
5.51

1120-8MGT
P.L 44.094
140 teeth

7.56
7.25
6.93
6.62
6.30
5.99
5.67
5.36
5.04
4.73

1064-8MGT
P.L 41.890
133 teeth

5.98
5.67
5.35
5.04
4.73
4.41
4.10

1040-8MGT
P.L 40.945
130 teeth

4.09
3.78
3.46

960-8MGT
P.L 37.795
120 teeth

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.053
1.056
1.059
1.063
1.067
1.071
1.077
1.083
1.091
1.091
1.100
1.111
1.111
1.118
1.125
1.125
1.125
1.133
1.143
1.143
1.154
1.158
1.167
1.167
1.176
1.182
1.188
1.200
1.200
1.214
1.222
1.231
1.250
1.250
1.250
1.250
1.263
1.267
1.273
1.273
1.286
1.286
1.294
1.308
1.333
1.333
1.333
1.333

920-8MGT
P.L 36.220
115 teeth

2.206
2.406
2.607
2.807
3.008
3.208
3.409
3.609
3.810
4.010
4.411
4.812
5.614
6.416
7.218
8.020
4.010
3.810
3.609
3.409
3.208
3.008
2.807
2.607
2.406
4.812
4.411
4.010
8.020
3.810
3.609
7.218
9.023
3.409
3.208
6.416
3.008
4.411
2.807
5.614
4.010
2.607
3.810
3.609
4.812
3.409
4.411
3.208
3.008
4.010
8.020
9.023
4.812
3.810
2.807
5.614
3.609
7.218
4.411
3.409
3.208
4.010
4.812
6.416

880-8MGT
P.L 34.646
110 teeth

22
24
26
28
30
32
34
36
38
40
44
48
56
64
72
80
40
38
36
34
32
30
28
26
24
48
44
40
80
38
36
72
90
34
32
64
30
44
28
56
40
26
38
36
48
34
44
32
30
40
80
90
48
38
28
56
36
72
44
34
32
40
48
64

840-8MGT
P.L 33.071
105 teeth

2.206
2.406
2.607
2.807
3.008
3.208
3.409
3.609
3.810
4.010
4.411
4.812
5.614
6.416
7.218
8.020
3.810
3.609
3.409
3.208
3.008
2.807
2.607
2.406
2.206
4.411
4.010
3.609
7.218
3.409
3.208
6.416
8.020
3.008
2.807
5.614
2.607
3.810
2.406
4.812
3.409
2.206
3.208
3.008
4.010
2.807
3.609
2.607
2.406
3.208
6.416
7.218
3.810
3.008
2.206
4.411
2.807
5.614
3.409
2.607
2.406
3.008
3.609
4.812

800-8MGT
P.L 31.496
100 teeth

22
24
26
28
30
32
34
36
38
40
44
48
56
64
72
80
38
36
34
32
30
28
26
24
22
44
40
36
72
34
32
64
80
30
28
56
26
38
24
48
34
22
32
30
40
28
36
26
24
32
64
72
38
30
22
44
28
56
34
26
24
30
36
48

720-8MGT
P.L 28.346
90 teeth

Speed
Ratio

640-8MGT
P.L 25.197
80 teeth

Pitch
Diameter
(Inches)

600-8MGT
P.L 23.622
75 teeth

No.
of
Grooves

560-8MGT
P.L 22.047
70 teeth

Pitch
Diameter
(Inches)

480-8MGT
P.L 18.898
60 teeth

No.
of
Grooves

384-8MGT
P.L 15.118
48 teeth

Center Distance, Inches

9.13 10.71 12.28 13.07 13.86 14.64 15.43 17.00 17.48 18.58 19.37
8.82 10.40 11.97 12.76 13.55 14.33 15.12 16.69 17.17 18.27 19.06
8.50 10.08 11.65 12.44 13.23 14.01 14.80 16.37 16.85 17.95 18.74
8.19 9.77 11.34 12.13 12.92 13.70 14.49 16.06 16.54 17.64 18.43
7.88 9.45 11.03 11.81 12.60 13.39 14.18 15.75 16.22 17.32 18.11
7.56 9.14 10.71 11.50 12.29 13.07 13.86 15.43 15.91 17.01 17.80
7.25 8.82 10.40 11.18 11.97 12.76 13.55 15.12 15.59 16.69 17.48
6.93 8.51 10.08 10.87 11.66 12.44 13.23 14.80 15.28 16.38 17.17
6.62 8.19 9.77 10.55 11.34 12.13 12.92 14.49 14.96 16.06 16.85
6.30 7.88 9.45 10.24 11.03 11.81 12.60 14.17 14.65 15.75 16.54
5.67 7.25 8.82 9.61 10.40 11.18 11.97 13.54 14.02 15.12 15.91
6.62 8.19 8.98 9.77 10.55 11.34 12.91 13.39 14.49 15.28
6.93 7.72 8.51 9.29 10.08 11.65 12.13 13.23 14.02
7.25 8.03 8.82 10.39 10.87 11.97 12.76
9.13 9.61 10.71 11.50
9.45 10.24
6.46 8.03 9.61 10.39 11.18 11.97 12.76 14.33 14.80 15.90 16.69
6.77 8.35 9.92 10.71 11.50 12.28 13.07 14.64 15.12 16.22 17.01
7.09 8.66 10.24 11.02 11.81 12.60 13.39 14.96 15.43 16.53 17.32
7.40 8.98 10.55 11.34 12.13 12.91 13.70 15.27 15.75 16.85 17.64
7.72 9.29 10.87 11.65 12.44 13.23 14.02 15.59 16.06 17.16 17.95
8.03 9.61 11.18 11.97 12.76 13.54 14.33 15.90 16.38 17.48 18.27
8.35 9.92 11.50 12.28 13.07 13.86 14.65 16.22 16.69 17.79 18.58
8.66 10.24 11.81 12.60 13.39 14.17 14.96 16.53 17.01 18.11 18.90
8.98 10.55 12.13 12.91 13.70 14.49 15.28 16.85 17.32 18.42 19.21
5.35 6.93 8.50 9.29 10.08 10.86 11.65 13.22 13.70 14.80 15.59
5.98 7.56 9.13 9.92 10.71 11.49 12.28 13.85 14.33 15.43 16.22
6.61 8.19 9.76 10.55 11.34 12.12 12.91 14.48 14.96 16.06 16.85
8.49 8.97 10.07 10.86
6.93 8.50 10.08 10.86 11.65 12.44 13.23 14.80 15.27 16.37 17.16
7.24 8.82 10.39 11.18 11.97 12.75 13.54 15.11 15.59 16.69 17.48
7.39 8.18 9.75 10.23 11.33 12.12
9.44
7.56 9.13 10.71 11.49 12.28 13.07 13.86 15.43 15.90 17.00 17.79
7.87 9.45 11.02 11.81 12.60 13.38 14.17 15.74 16.22 17.32 18.11
7.08 7.87 8.65 9.44 11.01 11.49 12.59 13.38
8.19 9.76 11.34 12.12 12.91 13.70 14.49 16.06 16.53 17.63 18.42
6.14 7.71 9.29 10.07 10.86 11.65 12.44 14.01 14.49 15.59 16.38
8.50 10.08 11.65 12.44 13.23 14.01 14.80 16.37 16.85 17.95 18.74
5.97 7.55 8.34 9.13 9.91 10.70 12.27 12.75 13.85 14.64
6.77 8.34 9.92 10.70 11.49 12.28 13.07 14.64 15.12 16.22 17.01
8.82 10.39 11.97 12.75 13.54 14.33 15.12 16.69 17.16 18.26 19.05
7.08 8.66 10.23 11.02 11.81 12.59 13.38 14.96 15.43 16.53 17.32
7.40 8.97 10.55 11.33 12.12 12.91 13.70 15.27 15.75 16.85 17.64
5.66 7.24 8.81 9.60 10.39 11.17 11.96 13.54 14.01 15.11 15.90
7.71 9.29 10.86 11.65 12.44 13.22 14.01 15.59 16.06 17.16 17.95
6.29 7.87 9.44 10.23 11.02 11.80 12.59 14.17 14.64 15.74 16.53
8.03 9.60 11.18 11.96 12.75 13.54 14.33 15.90 16.38 17.48 18.27
8.34 9.92 11.49 12.28 13.07 13.85 14.64 16.22 16.69 17.79 18.58
6.92 8.50 10.07 10.86 11.65 12.43 13.22 14.80 15.27 16.37 17.16
9.10 9.57 10.68 11.47
9.25 10.04
5.81 7.39 8.96 9.75 10.54 11.33 12.12 13.69 14.16 15.27 16.06
7.23 8.81 10.39 11.17 11.96 12.75 13.54 15.11 15.58 16.69 17.48
8.66 10.23 11.81 12.59 13.38 14.17 14.96 16.53 17.01 18.11 18.90
6.27 7.85 8.64 9.43 10.22 11.01 12.58 13.06 14.16 14.95
7.55 9.13 10.70 11.49 12.28 13.06 13.86 15.43 15.90 17.00 17.79
7.20 7.99 8.79 10.36 10.84 11.94 12.73
6.44 8.02 9.60 10.38 11.17 11.96 12.75 14.32 14.79 15.90 16.69
7.86 9.44 11.02 11.80 12.59 13.38 14.17 15.74 16.22 17.32 18.11
8.18 9.76 11.33 12.12 12.91 13.69 14.49 16.06 16.53 17.63 18.42
7.07 8.65 10.23 11.01 11.80 12.59 13.38 14.95 15.42 16.53 17.32
5.96 7.54 9.12 9.90 10.69 11.48 12.27 13.84 14.32 15.42 16.21
6.88 7.67 8.47 9.26 10.05 11.62 12.10 13.20 13.99
090

090

090

090

090

1.00

1.00

1.00

1.00

1.00

1.00

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 30

R

The Gates Rubber Company

8mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

1200-8MGT
P.L 47.244
150 teeth

1224-8MGT
P.L 48.189
153 teeth

1280-8MGT
P.L 50.394
160 teeth

1440-8MGT
P.L 56.693
180 teeth

1512-8MGT
P.L 59.528
189 teeth

1584-8MGT
P.L 62.362
198 teeth

1600-8MGT
P.L 62.992
200 teeth

1760-8MGT
P.L 69.291
220 teeth

1800-8MGT
P.L 70.866
225 teeth

2000-8MGT
P.L 78.740
250 teeth

2200-8MGT
P.L 86.614
275 teeth

2400-8MGT
P.L 94.488
300 teeth

2600-8MGT
P.L 102.362
325 teeth

2800-8MGT
P.L 110.236
350 teeth

3048-8MGT
P.L 120.000
381 teeth

3280-8MGT
P.L 129.134
410 teeth

3600-8MGT
P.L 141.732
450 teeth

4400-8MGT
P.L 173.228
550 teeth

Center Distance, Inches

20.15
19.84
19.52
19.21
18.90
18.58
18.27
17.95
17.64
17.32
16.69
16.06
14.80
13.54
12.28
11.02
17.48
17.79
18.11
18.42
18.74
19.05
19.37
19.68
20.00
16.38
17.00
17.63
11.65
17.95
18.26
12.91
10.22
18.58
18.89
14.17
19.21
17.16
19.52
15.43
17.79
19.84
18.11
18.42
16.69
18.74
17.32
19.05
19.37
17.95
12.26
10.83
16.84
18.26
19.68
15.73
18.58
13.52
17.47
18.89
19.21
18.10
17.00
14.78
1.00

20.63
20.32
20.00
19.69
19.37
19.06
18.74
18.43
18.11
17.80
17.17
16.54
15.28
14.02
12.76
11.50
17.95
18.27
18.58
18.90
19.21
19.53
19.84
20.16
20.47
16.85
17.48
18.11
12.12
18.42
18.74
13.38
10.70
19.05
19.37
14.64
19.68
17.64
20.00
15.90
18.27
20.31
18.58
18.90
17.16
19.21
17.79
19.53
19.84
18.42
12.73
11.30
17.32
18.74
20.16
16.21
19.05
13.99
17.95
19.37
19.68
18.58
17.47
15.26
1.00

21.73
21.42
21.10
20.79
20.47
20.16
19.84
19.53
19.21
18.90
18.27
17.64
16.38
15.12
13.86
12.60
19.05
19.37
19.68
20.00
20.31
20.63
20.94
21.26
21.57
17.95
18.58
19.21
13.22
19.52
19.84
14.48
11.80
20.15
20.47
15.74
20.78
18.74
21.10
17.00
19.37
21.41
19.68
20.00
18.26
20.31
18.89
20.63
20.94
19.52
13.83
12.41
18.42
19.84
21.26
17.31
20.15
15.10
19.05
20.47
20.78
19.68
18.57
16.36
1.10

24.88
24.57
24.25
23.94
23.62
23.31
22.99
22.68
22.36
22.05
21.42
20.79
19.53
18.27
17.01
15.75
22.20
22.52
22.83
23.15
23.46
23.78
24.09
24.41
24.72
21.10
21.73
22.36
16.37
22.67
22.99
17.63
14.95
23.30
23.62
18.89
23.93
21.89
24.25
20.15
22.52
24.56
22.83
23.15
21.41
23.46
22.04
23.78
24.09
22.67
16.99
15.56
21.57
22.99
24.41
20.46
23.30
18.25
22.20
23.62
23.93
22.83
21.72
19.51
1.10

26.30
25.99
25.67
25.36
25.04
24.73
24.41
24.10
23.78
23.47
22.84
22.21
20.95
19.69
18.43
17.17
23.62
23.94
24.25
24.57
24.88
25.20
25.51
25.83
26.14
22.52
23.15
23.78
17.79
24.09
24.41
19.05
16.37
24.72
25.04
20.31
25.35
23.31
25.67
21.57
23.94
25.98
24.25
24.57
22.83
24.88
23.46
25.20
25.51
24.09
18.41
16.99
22.99
24.41
25.83
21.88
24.72
19.67
23.62
25.04
25.35
24.25
23.14
20.93
1.10

27.71
27.40
27.08
26.77
26.46
26.14
25.83
25.51
25.20
24.88
24.25
23.62
22.36
21.10
19.84
18.58
25.04
25.35
25.67
25.98
26.30
26.61
26.93
27.24
27.56
23.94
24.57
25.20
19.21
25.51
25.83
20.47
17.79
26.14
26.46
21.73
26.77
24.72
27.08
22.99
25.35
27.40
25.67
25.98
24.25
26.30
24.88
26.61
26.93
25.51
19.83
18.40
24.40
25.82
27.24
23.30
26.14
21.09
25.03
26.45
26.77
25.66
24.56
22.35
1.10

28.03
27.72
27.40
27.09
26.77
26.46
26.14
25.83
25.51
25.20
24.57
23.94
22.68
21.42
20.16
18.90
25.35
25.67
25.98
26.30
26.61
26.93
27.24
27.56
27.87
24.25
24.88
25.51
19.52
25.82
26.14
20.78
18.10
26.45
26.77
22.04
27.08
25.04
27.40
23.30
25.67
27.71
25.98
26.30
24.56
26.61
25.19
26.93
27.24
25.82
20.14
18.72
24.72
26.14
27.56
23.61
26.45
21.40
25.35
26.77
27.08
25.98
24.87
22.66
1.10

31.18
30.87
30.55
30.24
29.92
29.61
29.29
28.98
28.66
28.35
27.72
27.09
25.83
24.57
23.31
22.05
28.50
28.82
29.13
29.45
29.76
30.08
30.39
30.71
31.02
27.40
28.03
28.66
22.67
28.97
29.29
23.93
21.25
29.60
29.92
25.19
30.23
28.19
30.55
26.45
28.82
30.86
29.13
29.45
27.71
29.76
28.34
30.08
30.39
28.97
23.29
21.87
27.87
29.29
30.71
26.76
29.60
24.55
28.50
29.92
30.23
29.13
28.02
25.81
1.10

31.97
31.66
31.34
31.03
30.71
30.40
30.08
29.77
29.45
29.14
28.51
27.88
26.62
25.36
24.10
22.84
29.29
29.61
29.92
30.24
30.55
30.87
31.18
31.50
31.81
28.19
28.82
29.45
23.46
29.76
30.08
24.72
22.04
30.39
30.71
25.98
31.02
28.98
31.34
27.24
29.61
31.65
29.92
30.24
28.50
30.55
29.13
30.87
31.18
29.76
24.08
22.66
28.66
30.08
31.50
27.55
30.39
25.34
29.29
30.71
31.02
29.92
28.81
26.60
1.20

35.90
35.59
35.27
34.96
34.65
34.33
34.02
33.70
33.39
33.07
32.44
31.81
30.55
29.29
28.03
26.77
33.23
33.54
33.86
34.17
34.49
34.80
35.12
35.43
35.75
32.13
32.76
33.39
27.40
33.70
34.02
28.66
25.98
34.33
34.65
29.92
34.96
32.91
35.28
31.18
33.54
35.59
33.86
34.17
32.44
34.49
33.07
34.80
35.12
33.70
28.02
26.60
32.59
34.01
35.43
31.49
34.33
29.28
33.22
34.64
34.96
33.85
32.75
30.54
1.20

39.84
39.53
39.21
38.90
38.58
38.27
37.95
37.64
37.32
37.01
36.38
35.75
34.49
33.23
31.97
30.71
37.16
37.48
37.79
38.11
38.42
38.74
39.05
39.37
39.68
36.06
36.69
37.32
31.33
37.63
37.95
32.59
29.92
38.26
38.58
33.85
38.89
36.85
39.21
35.11
37.48
39.52
37.79
38.11
36.37
38.42
37.00
38.74
39.05
37.63
31.96
30.54
36.53
37.95
39.37
35.43
38.26
33.22
37.16
38.58
38.89
37.79
36.69
34.48
1.20

43.78
43.47
43.15
42.84
42.52
42.21
41.89
41.58
41.26
40.95
40.32
39.69
38.43
37.17
35.91
34.65
41.10
41.42
41.73
42.05
42.36
42.68
42.99
43.31
43.62
40.00
40.63
41.26
35.27
41.57
41.89
36.53
33.86
42.20
42.52
37.79
42.83
40.79
43.15
39.05
41.42
43.46
41.73
42.05
40.31
42.36
40.94
42.68
42.99
41.57
35.90
34.48
40.47
41.89
43.31
39.37
42.20
37.16
41.10
42.52
42.83
41.73
40.63
38.42
1.20

47.71
47.40
47.08
46.77
46.46
46.14
45.83
45.51
45.20
44.88
44.25
43.62
42.36
41.10
39.84
38.58
45.04
45.35
45.67
45.98
46.30
46.61
46.93
47.24
47.56
43.94
44.57
45.20
39.21
45.51
45.83
40.47
37.79
46.14
46.46
41.73
46.77
44.72
47.09
42.99
45.35
47.40
45.67
45.98
44.25
46.30
44.88
46.61
46.93
45.51
39.83
38.41
44.41
45.82
47.24
43.30
46.14
41.09
45.04
46.45
46.77
45.67
44.56
42.35
1.20

51.65
51.34
51.02
50.71
50.40
50.08
49.77
49.45
49.14
48.82
48.19
47.56
46.30
45.04
43.78
42.52
48.98
49.29
49.61
49.92
50.24
50.55
50.87
51.18
51.50
47.88
48.51
49.14
43.15
49.45
49.77
44.41
41.73
50.08
50.40
45.67
50.71
48.66
51.03
46.93
49.29
51.34
49.61
49.92
48.19
50.24
48.82
50.55
50.87
49.45
43.77
42.35
48.35
49.76
51.18
47.24
50.08
45.03
48.98
50.39
50.71
49.61
48.50
46.29
1.20

56.53
56.22
55.90
55.59
55.28
54.96
54.65
54.33
54.02
53.70
53.07
52.44
51.18
49.92
48.66
47.40
53.86
54.17
54.49
54.80
55.12
55.43
55.75
56.06
56.38
52.76
53.39
54.02
48.03
54.33
54.65
49.29
46.61
54.96
55.28
50.55
55.59
53.54
55.91
51.81
54.17
56.22
54.49
54.80
53.07
55.12
53.70
55.43
55.75
54.33
48.66
47.24
53.23
54.64
56.06
52.12
54.96
49.92
53.86
55.27
55.59
54.49
53.38
51.18
1.20

61.10
60.79
60.47
60.16
59.84
59.53
59.21
58.90
58.58
58.27
57.64
57.01
55.75
54.49
53.23
51.97
58.42
58.74
59.05
59.37
59.68
60.00
60.31
60.63
60.94
57.32
57.95
58.58
52.60
58.89
59.21
53.86
51.18
59.52
59.84
55.12
60.15
58.11
60.47
56.38
58.74
60.78
59.05
59.37
57.63
59.68
58.26
60.00
60.31
58.89
53.22
51.80
57.79
59.21
60.63
56.69
59.52
54.48
58.42
59.84
60.15
59.05
57.95
55.74
1.20

67.40
67.09
66.77
66.46
66.14
65.83
65.51
65.20
64.88
64.57
63.94
63.31
62.05
60.79
59.53
58.27
64.72
65.04
65.35
65.67
65.98
66.30
66.61
66.93
67.24
63.62
64.25
64.88
58.90
65.19
65.51
60.16
57.48
65.82
66.14
61.42
66.45
64.41
66.77
62.68
65.04
67.08
65.35
65.67
63.93
65.98
64.56
66.30
66.61
65.19
59.52
58.10
64.09
65.51
66.93
62.99
65.82
60.78
64.72
66.14
66.45
65.35
64.25
62.04
1.20

83.15
82.84
82.52
82.21
81.89
81.58
81.26
80.95
80.63
80.32
79.69
79.06
77.80
76.54
75.28
74.02
80.47
80.79
81.10
81.42
81.73
82.05
82.36
82.68
82.99
79.37
80.00
80.63
74.65
80.94
81.26
75.91
73.23
81.57
81.89
77.17
82.20
80.16
82.52
78.43
80.79
82.83
81.10
81.42
79.69
81.73
80.32
82.05
82.36
80.95
75.27
73.85
79.84
81.26
82.68
78.74
81.57
76.53
80.47
81.89
82.20
81.10
80.00
77.79
1.20

Speed
Ratio

No. of
Grooves

No. of
Grooves

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.053
1.056
1.059
1.063
1.067
1.071
1.077
1.083
1.091
1.091
1.100
1.111
1.111
1.118
1.125
1.125
1.125
1.133
1.143
1.143
1.154
1.158
1.167
1.167
1.176
1.182
1.188
1.200
1.200
1.214
1.222
1.231
1.250
1.250
1.250
1.250
1.263
1.267
1.273
1.273
1.286
1.286
1.294
1.308
1.333
1.333
1.333
1.333

22
24
26
28
30
32
34
36
38
40
44
48
56
64
72
80
38
36
34
32
30
28
26
24
22
44
40
36
72
34
32
64
80
30
28
56
26
38
24
48
34
22
32
30
40
28
36
26
24
32
64
72
38
30
22
44
28
56
34
26
24
30
36
48

22
24
26
28
30
32
34
36
38
40
44
48
56
64
72
80
40
38
36
34
32
30
28
26
24
48
44
40
80
38
36
72
90
34
32
64
30
44
28
56
40
26
38
36
48
34
44
32
30
40
80
90
48
38
28
56
36
72
44
34
32
40
48
64

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 31

8mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

Length Factor*

12.90
14.01
12.11
13.22
10.52

13.69
14.80
12.90
14.01
11.31

15.26
16.37
14.47
15.58
12.89

15.74
16.85
14.95
16.06
13.36

16.84
17.95
16.05
17.16
14.46

17.63
18.74
16.84
17.95
15.26

7.69 9.27 10.05 10.85 11.63 12.42
9.59 11.17 11.96 12.75 13.53 14.32
8.80 10.38 11.16 11.96 12.74 13.53
8.10
9.91 11.49 12.27 13.06 13.85 14.64
7.18 7.97 8.76 9.55 10.35
9.12 10.69 11.48 12.27 13.06 13.85
8.32 9.90 10.69 11.48 12.26 13.05
6.71 8.30 9.09 9.88 10.67 11.46
9.43 11.01 11.80 12.59 13.37 14.16
7.84 9.42 10.20 11.00 11.78 12.58
6.98 7.78 8.58 9.37
8.95 10.53 11.32 12.11 12.89 13.69
9.75 11.32 12.11 12.90 13.69 14.48
6.86 8.45 9.24 10.03 10.82 11.61

8.24
14.00
15.89
15.10
9.69
16.21
11.92
15.42
14.63
13.04
15.73
14.15
10.96
15.26
16.05
13.19

8.72
14.47
16.37
15.58
10.17
16.69
12.40
15.89
15.10
13.51
16.21
14.62
11.43
15.73
16.52
13.66

9.83
15.57
17.47
16.68
11.27
17.79
13.50
16.99
16.20
14.62
17.31
15.73
12.54
16.83
17.62
14.77

10.63
16.36
18.26
17.47
12.07
18.58
14.30
17.78
16.99
15.41
18.10
16.52
13.33
17.62
18.42
15.56

8.47 10.05 10.84 11.63 12.42 13.21 14.78 15.25
9.27 10.85 11.63 12.42 13.21 14.00 15.57 16.05
7.98 9.57 10.35 11.15 11.93 12.73 14.30 14.78
5.86 7.46 8.26 9.06 9.85 10.64 12.22 12.70
8.81 9.29
9.58 11.16 11.95 12.74 13.52 14.32 15.89 16.36
6.46 7.27 8.07 8.87 9.66 11.25 11.73
7.00 8.59 9.38 10.18 10.97 11.76 13.34 13.81
9.10 10.68 11.47 12.26 13.05 13.84 15.41 15.89
7.06 7.87 8.67 10.27 10.75
6.00 7.61 8.40 9.20 9.99 10.79 12.37 12.85
8.62 10.20 10.99 11.78 12.57 13.36 14.93 15.41
8.13 9.71 10.50 11.30 12.08 12.88 14.45 14.93
9.42 11.00 11.78 12.57 13.36 14.15 15.72 16.20
7.14 8.74 9.53 10.33 11.12 11.91 13.49 13.96

16.36
17.15
15.88
13.80
10.41
17.46
12.83
14.92
16.99
11.86
13.95
16.51
16.03
17.30
15.07

17.15
17.94
16.67
14.60
11.21
18.25
13.63
15.71
17.78
12.65
14.75
17.30
16.82
18.09
15.86

7.39 8.96 10.54
8.50 10.07 11.65
6.59 8.17 9.75
7.70 9.28 10.86
6.57 8.15

11.33
12.43
10.53
11.64
8.94

12.12
13.22
11.33
12.43
9.73

4.86
4.05

6.44
5.64

5.31
7.23
6.43

6.10
8.02
7.22

5.17

6.75

7.54

8.33

4.37

5.95
5.15

6.74
5.94

7.54
6.74

4.69

6.27
4.66

7.06
5.45

7.85
6.25

4.19
5.00

5.79
6.59

6.58
7.38

7.37
8.17
5.26

4.51

5.30
6.10
4.80

6.09
6.89
5.60

6.88
7.69
6.39

4.83

6.42

7.21

8.00

4.34

5.93

6.72

5.40
7.52

4.66

5.44
4.94
6.25

6.23
5.74
7.04

4.54

3.27

1160-8MGT
P.L 45.669
145 teeth

6.59
7.70
5.79
6.91

1120-8MGT
P.L 44.094
140 teeth

5.81
6.92
5.00
6.12

1064-8MGT
P.L 41.890
133 teeth

4.22
5.34

1040-8MGT
P.L 40.945
130 teeth

3.44

960-8MGT
P.L 37.795
120 teeth

1.357
1.364
1.375
1.385
1.400
1.400
1.406
1.412
1.417
1.429
1.429
1.455
1.455
1.462
1.467
1.474
1.500
1.500
1.500
1.538
1.545
1.556
1.556
1.571
1.583
1.600
1.600
1.607
1.636
1.636
1.647
1.667
1.667
1.684
1.692
1.714
1.727
1.750
1.750
1.778
1.800
1.800
1.818
1.818
1.833
1.846
1.867
1.875
1.882
1.895
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.045
2.105
2.118
2.133
2.154
2.182

920-8MGT
P.L 36.220
115 teeth

3.810
3.008
4.411
3.609
5.614
11.229
9.023
4.812
3.409
4.010
8.020
3.208
6.416
3.810
4.411
5.614
3.609
4.812
7.218
4.010
3.409
5.614
11.229
4.411
3.810
4.812
6.416
9.023
3.609
7.218
5.614
4.010
8.020
6.416
4.411
4.812
3.810
5.614
11.229
6.416
7.218
14.437
4.010
8.020
4.411
4.812
5.614
9.023
6.416
7.218
4.411
4.812
5.614
6.416
7.218
8.020
11.229
14.437
9.023
8.020
7.218
6.416
5.614
4.812

880-8MGT
P.L 34.646
110 teeth

38
30
44
36
56
112
90
48
34
40
80
32
64
38
44
56
36
48
72
40
34
56
112
44
38
48
64
90
36
72
56
40
80
64
44
48
38
56
112
64
72
144
40
80
44
48
56
90
64
72
44
48
56
64
72
80
112
144
90
80
72
64
56
48

840-8MGT
P.L 33.071
105 teeth

2.807
2.206
3.208
2.607
4.010
8.020
6.416
3.409
2.406
2.807
5.614
2.206
4.411
2.607
3.008
3.810
2.406
3.208
4.812
2.607
2.206
3.609
7.218
2.807
2.406
3.008
4.010
5.614
2.206
4.411
3.409
2.406
4.812
3.810
2.607
2.807
2.206
3.208
6.416
3.609
4.010
8.020
2.206
4.411
2.406
2.607
3.008
4.812
3.409
3.810
2.206
2.406
2.807
3.208
3.609
4.010
5.614
7.218
4.411
3.810
3.409
3.008
2.607
2.206

800-8MGT
P.L 31.496
100 teeth

28
22
32
26
40
80
64
34
24
28
56
22
44
26
30
38
24
32
48
26
22
36
72
28
24
30
40
56
22
44
34
24
48
38
26
28
22
32
64
36
40
80
22
44
24
26
30
48
34
38
22
24
28
32
36
40
56
72
44
38
34
30
26
22

7.03
6.54
7.83
5.54

720-8MGT
P.L 28.346
90 teeth

Speed
Ratio

640-8MGT
P.L 25.197
80 teeth

Pitch
Diameter
(Inches)

600-8MGT
P.L 23.622
75 teeth

No.
of
Grooves

560-8MGT
P.L 22.047
70 teeth

Pitch
Diameter
(Inches)

480-8MGT
P.L 18.898
60 teeth

No.
of
Grooves

384-8MGT
P.L 15.118
48 teeth

Center Distance, Inches

6.14

4.48

6.08

6.87

7.66

3.97

5.58
5.08

6.38
5.88
4.86

7.18
6.68
5.68

0.70

5.72
5.22

0.80

6.52
6.02
5.00

7.32
6.82
5.82

8.55
7.55

9.35 10.14 10.94 12.52 13.00 14.10 14.90
8.35 9.15 9.95 11.54 12.02 13.13 13.92

9.25 10.83 11.62 12.41
7.34
8.76 10.35 11.14 11.93
8.27 9.86 10.65 11.44
7.29 8.88 9.68 10.47
6.28

4.10

7.75
6.74

8.91
8.42
7.43
6.41

7.89 8.69 9.49 10.28
6.88 7.68 8.49 9.29
10.50 11.28 12.08 12.87
10.01 10.80 11.59 12.38
9.03 9.82 10.62 11.41
8.03 8.83 9.63 10.43
7.01 7.82 8.63 9.43
6.79 7.61 8.42

13.99
8.95
13.51
13.03
12.06
7.75
11.08
10.09
13.66
13.18
12.21
11.23
10.24
9.23

15.56
10.55
15.08
14.60
13.64
9.37
12.66
11.68
15.23
14.75
13.78
12.81
11.83
10.84

16.04
11.03
15.56
15.08
14.11
9.85
13.14
12.16
15.71
15.23
14.26
13.29
12.31
11.32

17.14
12.15
16.66
16.18
15.22
10.98
14.25
13.27
16.81
16.33
15.37
14.40
13.42
12.43

17.93
12.95
17.45
16.97
16.01
11.78
15.04
14.07
17.60
17.12
16.16
15.19
14.22
13.23
9.17

7.19
6.92 7.75 8.56
7.96 8.77 9.57
8.97 9.77 10.57
9.96 10.76 11.56
10.95 11.74 12.53

8.01
9.37
10.38
11.37
12.35
13.32

9.64
10.98
11.97
12.96
13.93
14.90

10.13
11.46
12.45
13.44
14.41
15.38

11.26
12.58
13.56
14.54
15.52
16.48

12.06
13.38
14.36
15.34
16.31
17.27

1.00

1.00

1.00

1.00

1.00

5.35

5.13
6.16

5.95
6.97

7.15
6.55 8.17
7.57 9.17
8.56 10.15

0.80

0.80

090

090

090

090

090

13.20
8.15
12.72
12.23
11.26

1.00

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 32

R

The Gates Rubber Company

8mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

1280-8MGT
P.L 50.394
160 teeth

1440-8MGT
P.L 56.693
180 teeth

1512-8MGT
P.L 59.528
189 teeth

1584-8MGT
P.L 62.362
198 teeth

1600-8MGT
P.L 62.992
200 teeth

1760-8MGT
P.L 69.291
220 teeth

1800-8MGT
P.L 70.866
225 teeth

2000-8MGT
P.L 78.740
250 teeth

2200-8MGT
P.L 86.614
275 teeth

2400-8MGT
P.L 94.488
300 teeth

2600-8MGT
P.L 102.362
325 teeth

2800-8MGT
P.L 110.236
350 teeth

3048-8MGT
P.L 120.000
381 teeth

3280-8MGT
P.L 129.134
410 teeth

3600-8MGT
P.L 141.732
450 teeth

4400-8MGT
P.L 173.228
550 teeth

18.89
20.00
18.10
19.21
16.52

18.41
19.20
17.93
15.86
12.48
19.52
14.90
16.97
19.04
13.92
16.01
18.56
18.08
19.35
17.12
9.94
16.16
15.19

19.99
21.10
19.20
20.31
17.62
9.95
13.00
18.73
20.62
19.83
14.44
20.94
16.66
20.15
19.36
17.77
20.46
18.88
15.70
19.99
20.78
17.92
10.51
19.51
20.30
19.03
16.96
13.59
20.62
16.00
18.07
20.14
15.03
17.11
19.66
19.18
20.45
18.23
11.07
17.26
16.30

23.14
24.25
22.35
23.46
20.77
13.13
16.17
21.88
23.77
22.98
17.60
24.09
19.82
23.30
22.51
20.92
23.61
22.03
18.86
23.14
23.93
21.08
13.71
22.66
23.45
22.18
20.12
16.76
23.77
19.16
21.23
23.29
18.20
20.27
22.82
22.34
23.61
21.38
14.28
20.42
19.46

18.72
13.74
18.24
17.76
16.80
12.58
15.83
14.86
18.39
17.91
16.95
15.98
15.01
14.03
9.99

19.19
14.22
18.71
18.23
17.27
13.06
16.31
15.34
18.87
18.39
17.42
16.46
15.49
14.51
10.49

20.29
15.33
19.82
19.34
18.38
14.17
17.41
16.45
19.97
19.49
18.53
17.56
16.59
15.62
11.63

23.45
18.49
22.97
22.49
21.53
17.35
20.57
19.61
23.12
22.64
21.69
20.72
19.76
18.79
14.85

12.86
14.17
15.15
16.13
17.10
18.06
1.00

13.34
14.65
15.63
16.61
17.57
18.54
1.00

14.46
15.76
16.74
17.71
18.68
19.64
1.10

17.64
18.94
19.91
20.87
21.84
22.80
1.10

24.56
25.67
23.77
24.88
22.19
14.56
17.59
23.30
25.19
24.40
19.02
25.51
21.24
24.72
23.93
22.35
25.03
23.45
20.28
24.56
25.35
22.50
15.14
24.08
24.87
23.61
21.54
18.19
25.19
20.58
22.65
24.71
19.62
21.69
24.24
23.76
25.03
22.80
15.72
21.85
20.88
11.68
24.87
19.92
24.39
23.91
22.96
18.78
22.00
21.03
24.54
24.07
23.11
22.15
21.18
20.22
16.29
12.22
19.07
20.36
21.33
22.30
23.26
24.22
1.10

25.98
27.08
25.19
26.29
23.61
15.98
19.01
24.71
26.61
25.82
20.44
26.92
22.65
26.13
25.34
23.76
26.45
24.87
21.70
25.97
26.76
23.92
16.57
25.50
26.29
25.02
22.96
19.61
26.60
22.00
24.07
26.13
21.04
23.11
25.65
25.18
26.44
24.22
17.15
23.26
22.30
13.15
26.28
21.34
25.81
25.33
24.37
20.20
23.42
22.45
25.96
25.48
24.53
23.57
22.60
21.64
17.73
13.69
20.50
21.79
22.75
23.72
24.68
25.63
1.10

26.29
27.40
25.50
26.61
23.92
16.30
19.33
25.03
26.92
26.13
20.75
27.24
22.97
26.45
25.66
24.08
26.76
25.18
22.01
26.29
27.08
24.23
16.89
25.81
26.60
25.34
23.28
19.93
26.92
22.32
24.38
26.44
21.36
23.43
25.97
25.49
26.76
24.54
17.47
23.58
22.62
13.47
26.60
21.66
26.12
25.64
24.69
20.52
23.73
22.77
26.27
25.80
24.84
23.88
22.92
21.96
18.05
14.02
20.82
22.10
23.07
24.03
24.99
25.95
1.10

29.44
30.55
28.65
29.76
27.07
19.46
22.48
28.18
30.07
29.28
23.91
30.39
26.12
29.60
28.81
27.23
29.91
28.33
25.17
29.44
30.23
27.38
20.06
28.96
29.75
28.49
26.43
23.09
30.07
25.47
27.54
29.60
24.51
26.58
29.12
28.64
29.91
27.69
20.65
26.73
25.78
16.70
29.75
24.82
29.27
28.80
27.84
23.69
26.89
25.93
29.43
28.95
28.00
27.04
26.08
25.12
21.23
17.26
23.98
25.27
26.23
27.19
28.15
29.10
1.10

30.23
31.34
29.44
30.55
27.86
20.25
23.27
28.97
30.86
30.07
24.70
31.18
26.91
30.39
29.60
28.02
30.70
29.13
25.96
30.23
31.02
28.17
20.85
29.76
30.54
29.28
27.22
23.88
30.86
26.26
28.33
30.39
25.31
27.37
29.91
29.43
30.70
28.48
21.44
27.53
26.57
17.50
30.54
25.61
30.06
29.59
28.63
24.48
27.68
26.72
30.22
29.74
28.79
27.83
26.87
25.91
22.03
18.07
24.78
26.06
27.02
27.98
28.94
29.89
1.20

34.17
35.27
33.38
34.48
31.80
24.20
27.21
32.91
34.80
34.01
28.64
35.11
30.85
34.32
33.54
31.96
34.64
33.06
29.90
34.17
34.95
32.11
24.80
33.69
34.48
33.22
31.16
27.82
34.80
30.20
32.26
34.32
29.25
31.31
33.85
33.37
34.64
32.42
25.40
31.47
30.51
21.49
34.48
29.55
34.00
33.53
32.57
28.43
31.62
30.66
34.16
33.68
32.73
31.77
30.81
29.85
25.99
22.07
28.73
30.00
30.97
31.92
32.88
33.83
1.20

38.10
39.21
37.32
38.42
35.74
28.14
31.15
36.84
38.73
37.95
32.57
39.05
34.79
38.26
37.47
35.89
38.58
37.00
33.84
38.10
38.89
36.05
28.75
37.63
38.42
37.15
35.10
31.76
38.73
34.14
36.20
38.26
33.19
35.25
37.78
37.31
38.57
36.36
29.35
35.40
34.45
25.46
38.41
33.49
37.94
37.46
36.51
32.37
35.56
34.60
38.09
37.62
36.66
35.71
34.75
33.80
29.94
26.05
32.67
33.95
34.91
35.86
36.82
37.77
1.20

42.05
43.15
41.26
42.36
39.68
32.09
35.10
40.78
42.67
41.89
36.52
42.99
38.73
42.20
41.41
39.83
42.52
40.94
37.78
42.04
42.83
39.99
32.70
41.57
42.36
41.09
39.04
35.71
42.67
38.09
40.14
42.20
37.13
39.19
41.72
41.25
42.51
40.30
33.30
39.35
38.39
29.43
42.35
37.44
41.88
41.40
40.45
36.32
39.50
38.55
42.03
41.56
40.61
39.65
38.70
37.74
33.90
30.02
36.62
37.90
38.85
39.81
40.76
41.71
1.20

45.98
47.08
45.19
46.30
43.61
36.03
39.03
44.72
46.61
45.82
40.45
46.93
42.66
46.14
45.35
43.77
46.45
44.87
41.71
45.98
46.77
43.92
36.64
45.50
46.29
45.03
42.97
39.65
46.61
42.02
44.08
46.13
41.07
43.13
45.66
45.18
46.45
44.23
37.24
43.28
42.33
33.39
46.29
41.38
45.81
45.34
44.39
40.26
43.44
42.48
45.97
45.50
44.54
43.59
42.64
41.68
37.85
33.98
40.56
41.84
42.79
43.75
44.70
45.65
1.20

49.92
51.02
49.13
50.24
47.55
39.97
42.97
48.66
50.55
49.76
44.40
50.87
46.61
50.08
49.29
47.71
50.39
48.81
45.66
49.92
50.71
47.87
40.58
49.44
50.23
48.97
46.92
43.59
50.55
45.97
48.02
50.07
45.01
47.07
49.60
49.13
50.39
48.18
41.19
47.23
46.27
37.34
50.23
45.32
49.76
49.28
48.33
44.20
47.38
46.43
49.91
49.44
48.49
47.53
46.58
45.63
41.80
37.94
44.51
45.78
46.73
47.69
48.64
49.59
1.20

54.80
55.90
54.01
55.12
52.44
44.85
47.86
53.54
55.43
54.64
49.28
55.75
51.49
54.96
54.17
52.59
55.27
53.70
50.54
54.80
55.59
52.75
45.47
54.33
55.11
53.85
51.80
48.47
55.43
50.85
52.90
54.96
49.90
51.95
54.48
54.01
55.27
53.06
46.08
52.11
51.16
42.24
55.11
50.20
54.64
54.16
53.21
49.09
52.26
51.31
54.79
54.32
53.37
52.42
51.46
50.51
46.69
42.84
49.40
50.67
51.62
52.57
53.52
54.47
1.20

59.37
60.47
58.58
59.68
57.00
49.42
52.42
58.10
60.00
59.21
53.84
60.31
56.05
59.52
58.73
57.16
59.84
58.26
55.10
59.36
60.15
57.31
50.04
58.89
59.68
58.42
56.36
53.04
59.99
55.41
57.47
59.52
54.46
56.52
59.05
58.57
59.83
57.62
50.65
56.67
55.72
46.82
59.68
54.77
59.20
58.73
57.78
53.66
56.83
55.88
59.36
58.88
57.93
56.98
56.03
55.08
51.26
47.42
53.96
55.23
56.19
57.14
58.09
59.04
1.20

65.67
66.77
64.88
65.98
63.30
55.72
58.72
64.40
66.30
65.51
60.14
66.61
62.35
65.82
65.03
63.46
66.14
64.56
61.40
65.66
66.45
63.61
56.34
65.19
65.98
64.72
62.66
59.34
66.29
61.72
63.77
65.82
60.77
62.82
65.35
64.87
66.14
63.92
56.96
62.98
62.03
53.13
65.98
61.08
65.50
65.03
64.08
59.96
63.13
62.18
65.66
65.18
64.24
63.29
62.34
61.38
57.57
53.74
60.27
61.54
62.49
63.44
64.39
65.34
1.20

81.42
82.52
80.63
81.73
79.05
71.48
74.48
80.16
82.05
81.26
75.90
82.36
78.11
81.57
80.79
79.21
81.89
80.31
77.16
81.41
82.20
79.36
72.10
80.94
81.73
80.47
78.42
75.10
82.04
77.47
79.52
81.57
76.52
78.57
81.10
80.62
81.89
79.68
72.72
78.73
77.78
68.90
81.73
76.83
81.25
80.78
79.83
75.72
78.88
77.94
81.41
80.94
79.99
79.04
78.09
77.14
73.33
69.51
76.03
77.30
78.25
79.20
80.14
81.09
1.20

1200-8MGT
P.L 47.244
150 teeth

1224-8MGT
P.L 48.189
153 teeth

Center Distance, Inches

18.42
19.52
17.63
18.73
16.04
11.42
17.15
19.05
18.26
12.86
19.36
15.08
18.57
17.78
16.19
18.89
17.30
14.12
18.41
19.20
16.35

11.90
17.62
19.52
18.73
13.33
19.84
15.56
19.05
18.25
16.67
19.36
17.78
14.60
18.88
19.68
16.82

17.93
18.72
17.45
15.38
12.00
19.04
14.42
16.50
18.56
13.45
15.53
18.09
17.61
18.88
16.65
9.45
15.68
14.71

Speed
Ratio

No. of
Grooves

No. of
Grooves

1.357
1.364
1.375
1.385
1.400
1.400
1.406
1.412
1.417
1.429
1.429
1.455
1.455
1.462
1.467
1.474
1.500
1.500
1.500
1.538
1.545
1.556
1.556
1.571
1.583
1.600
1.600
1.607
1.636
1.636
1.647
1.667
1.667
1.684
1.692
1.714
1.727
1.750
1.750
1.778
1.800
1.800
1.818
1.818
1.833
1.846
1.867
1.875
1.882
1.895
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.045
2.105
2.118
2.133
2.154
2.182

28
22
32
26
40
80
64
34
24
28
56
22
44
26
30
38
24
32
48
26
22
36
72
28
24
30
40
56
22
44
34
24
48
38
26
28
22
32
64
36
40
80
22
44
24
26
30
48
34
38
22
24
28
32
36
40
56
72
44
38
34
30
26
22

38
30
44
36
56
112
90
48
34
40
80
32
64
38
44
56
36
48
72
40
34
56
112
44
38
48
64
90
36
72
56
40
80
64
44
48
38
56
112
64
72
144
40
80
44
48
56
90
64
72
44
48
56
64
72
80
112
144
90
80
72
64
56
48

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 33

8mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

Length Factor*

5.26

4.56

5.40

6.09

6.69
7.71

5.16

5.75
6.82

6.22

7.85
5.88

5.29

5.41

6.96
6.01

7.09

6.74
8.72

6.14

7.82

6.99 7.84 8.68 10.32 10.81
9.39 10.20 11.00 11.80 13.39 13.87
7.45 8.28 9.10 9.92 11.54 12.02
8.50 9.32 10.13 10.94 12.54 13.02
8.16
7.12 7.97 8.81 10.46 10.95
7.58 8.41 9.24 10.06 11.67 12.16
9.53 10.34 11.14 11.94 13.53 14.01
8.29
8.64 9.46 10.27 11.08 12.68 13.17
6.36 7.24 8.10 8.94 10.59 11.09

0.80

0.80

090

090

12.76
15.78
13.95
14.94
10.22
12.90
14.09
15.92
10.35
15.08
13.04

7.71

7.95

6.48
8.77

9.37 10.19 11.81 12.30 13.42 14.23
7.88 8.41 9.63 10.48
7.37 8.22 9.07 10.73 11.22 12.36 13.18
9.59 10.41 11.22 12.82 13.31 14.43 15.23

6.99

7.84
6.61

8.68
7.49

7.12

7.97

8.81

6.73

7.62

5.92

0.80

11.95
14.98
13.14
14.14
9.37
12.09
13.28
15.13
9.50
14.28
12.22

6.86

8.55

8.00 8.54 9.75 10.61
9.50 10.33 11.95 12.44 13.56 14.37
8.35 9.20 10.86 11.35 12.50 13.31
8.12 8.66 9.88 10.74
9.64 10.46 12.09 12.58 13.70 14.51
8.24 8.78 10.01 10.87
8.48 9.33 10.99 11.49 12.63 13.45
8.36

0.70

1160-8MGT
P.L 45.669
145 teeth

8.70 9.51 11.12 11.60 12.72 13.52
9.71 10.52 12.12 12.60 13.71 14.51
7.45 8.28 9.92 10.41 11.54 12.34

8.31 9.11 9.92 10.71 11.51 13.10 13.58 14.69 15.49
9.31 10.11 10.91 11.70 12.50 14.08 14.56 15.66 16.46
8.86 9.70
6.35 7.19 8.01 8.83 9.65 11.26 11.74 12.86 13.66
6.74 7.58 8.41 10.05 10.54 11.67 12.48
7.42 8.23 9.05 9.85 10.66 12.26 12.74 13.85 14.65
8.45 9.25 10.06 10.86 11.66 13.25 13.73 14.84 15.63
6.48 7.32 8.15 8.97 9.78 11.40 11.88 13.00 13.81
6.86 7.71 8.55 10.19 10.68 11.81 12.62
9.45 10.25 11.05 11.85 12.64 14.23 14.70 15.81 16.61
9.12 9.96
7.55 8.37 9.19 9.99 10.80 12.40 12.88 14.00 14.80

8.59
6.61
7.68

6.27

1120-8MGT
P.L 44.094
140 teeth

7.88
8.91

1064-8MGT
P.L 41.890
133 teeth

7.05
8.10

1040-8MGT
P.L 40.945
130 teeth

7.28

960-8MGT
P.L 37.795
120 teeth

2.222
2.250
2.250
2.250
2.286
2.333
2.333
2.353
2.368
2.400
2.462
2.500
2.500
2.545
2.545
2.571
2.571
2.647
2.667
2.667
2.769
2.800
2.813
2.857
2.909
2.947
3.000
3.000
3.000
3.077
3.111
3.214
3.273
3.273
3.294
3.333
3.462
3.500
3.600
3.636
3.733
3.750
3.789
4.000
4.000
4.091
4.235
4.308
4.500
4.667
4.800
5.091
5.143
5.538
6.000
6.545

920-8MGT
P.L 36.220
115 teeth

8.020
7.218
9.023
14.437
6.416
5.614
11.229
8.020
9.023
7.218
6.416
8.020
9.023
5.614
11.229
7.218
14.437
9.023
6.416
8.020
7.218
11.229
9.023
8.020
6.416
11.229
7.218
9.023
14.437
8.020
11.229
9.023
7.218
14.437
11.229
8.020
9.023
11.229
14.437
8.020
11.229
9.023
14.437
11.229
14.437
9.023
14.437
11.229
14.437
11.229
14.437
11.229
14.437
14.437
14.437
14.437

880-8MGT
P.L 34.646
110 teeth

80
72
90
144
64
56
112
80
90
72
64
80
90
56
112
72
144
90
64
80
72
112
90
80
64
112
72
90
144
80
112
90
72
144
112
80
90
112
144
80
112
90
144
112
144
90
144
112
144
112
144
112
144
144
144
144

840-8MGT
P.L 33.071
105 teeth

3.609
3.208
4.010
6.416
2.807
2.406
4.812
3.409
3.810
3.008
2.607
3.208
3.609
2.206
4.411
2.807
5.614
3.409
2.406
3.008
2.607
4.010
3.208
2.807
2.206
3.810
2.406
3.008
4.812
2.607
3.609
2.807
2.206
4.411
3.409
2.406
2.607
3.208
4.010
2.206
3.008
2.406
3.810
2.807
3.609
2.206
3.409
2.607
3.208
2.406
3.008
2.206
2.807
2.607
2.406
2.206

800-8MGT
P.L 31.496
100 teeth

36
32
40
64
28
24
48
34
38
30
26
32
36
22
44
28
56
34
24
30
26
40
32
28
22
38
24
30
48
26
36
28
22
44
34
24
26
32
40
22
30
24
38
28
36
22
34
26
32
24
30
22
28
26
24
22

720-8MGT
P.L 28.346
90 teeth

Speed
Ratio

640-8MGT
P.L 25.197
80 teeth

Pitch
Diameter
(Inches)

600-8MGT
P.L 23.622
75 teeth

No.
of
Grooves

560-8MGT
P.L 22.047
70 teeth

Pitch
Diameter
(Inches)

480-8MGT
P.L 18.898
60 teeth

No.
of
Grooves

384-8MGT
P.L 15.118
48 teeth

Center Distance, Inches

090

6.85

090

7.74

090

8.61

1.00

8.91 10.13 10.99

9.46 11.12 11.62 12.77 13.59

1.00

8.48

9.03 10.26 11.12

8.60

9.15 10.38 11.25

8.72

9.27 10.51 11.38

1.00

1.00

1.00

1.00

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 34

R

The Gates Rubber Company

8mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

1512-8MGT
P.L 59.528
189 teeth

1584-8MGT
P.L 62.362
198 teeth

1600-8MGT
P.L 62.992
200 teeth

1760-8MGT
P.L 69.291
220 teeth

1800-8MGT
P.L 70.866
225 teeth

2000-8MGT
P.L 78.740
250 teeth

2200-8MGT
P.L 86.614
275 teeth

2400-8MGT
P.L 94.488
300 teeth

2600-8MGT
P.L 102.362
325 teeth

2800-8MGT
P.L 110.236
350 teeth

3048-8MGT
P.L 120.000
381 teeth

3280-8MGT
P.L 129.134
410 teeth

3600-8MGT
P.L 141.732
450 teeth

4400-8MGT
P.L 173.228
550 teeth

20.51
21.48
19.37
12.75
22.45
23.41
16.86
20.66
19.51
21.63
22.60
20.81
19.66
23.56
17.14
21.78
13.28
19.80
22.75
20.95
21.93
17.42
19.95
21.10
22.90
17.56
22.08
20.09
13.80
21.25
17.70
20.23
22.22
14.06
17.84
21.39
20.38
17.98
14.32
21.54
18.11
20.52
14.45
18.25
14.57
20.66
14.70
18.39
14.83
18.53
14.96
18.67
15.09
15.21
15.34
15.47

21.94
22.90
20.79
14.23
23.87
24.83
18.30
22.08
20.94
23.05
24.02
22.23
21.08
24.98
18.58
23.20
14.77
21.23
24.17
22.38
23.35
18.86
21.38
22.53
24.32
19.01
23.50
21.52
15.30
22.67
19.15
21.67
23.65
15.56
19.29
22.82
21.81
19.43
15.82
22.96
19.56
21.95
15.96
19.70
16.09
22.10
16.22
19.84
16.35
19.98
16.48
20.12
16.61
16.74
16.87
17.00

22.25
23.22
21.11
14.56
24.18
25.14
18.62
22.40
21.26
23.37
24.33
22.55
21.40
25.30
18.90
23.52
15.10
21.55
24.48
22.70
23.67
19.19
21.69
22.84
24.63
19.33
23.81
21.84
15.63
22.99
19.47
21.98
23.96
15.89
19.61
23.14
22.13
19.75
16.16
23.28
19.89
22.27
16.29
20.03
16.42
22.42
16.55
20.17
16.68
20.30
16.81
20.44
16.94
17.07
17.20
17.33

25.42
26.38
24.28
17.81
27.34
28.30
21.81
25.56
24.43
26.53
27.49
25.71
24.57
28.45
22.10
26.68
18.36
24.72
27.64
25.86
26.83
22.38
24.87
26.01
27.79
22.53
26.98
25.01
18.91
26.16
22.67
25.16
27.13
19.18
22.81
26.31
25.31
22.95
19.45
26.45
23.10
25.45
19.59
23.24
19.72
25.60
19.86
23.38
19.99
23.52
20.13
23.66
20.26
20.39
20.53
20.66

26.21
27.17
25.07
18.62
28.13
29.09
22.61
26.36
25.22
27.32
28.28
26.51
25.37
29.24
22.90
27.47
19.18
25.52
28.44
26.66
27.62
23.18
25.66
26.80
28.59
23.33
27.77
25.81
19.73
26.95
23.47
25.96
27.92
20.00
23.61
27.10
26.10
23.76
20.27
27.25
23.90
26.25
20.41
24.04
20.54
26.40
20.68
24.18
20.81
24.32
20.95
24.47
21.08
21.22
21.35
21.49

30.16
31.12
29.03
22.64
32.08
33.03
26.58
30.31
29.17
31.27
32.23
30.46
29.32
33.18
26.87
31.42
23.20
29.47
32.38
30.61
31.57
27.16
29.62
30.76
32.53
27.31
31.72
29.77
23.76
30.90
27.45
29.92
31.87
24.04
27.60
31.05
30.06
27.74
24.32
31.20
27.88
30.21
24.46
28.03
24.60
30.36
24.74
28.17
24.88
28.32
25.01
28.46
25.15
25.29
25.43
25.56

34.10
35.06
32.97
26.62
36.02
36.97
30.54
34.25
33.12
35.21
36.17
34.40
33.27
37.12
30.83
35.36
27.20
33.42
36.32
34.55
35.51
31.13
33.57
34.70
36.47
31.27
35.67
33.72
27.77
34.85
31.42
33.87
35.82
28.05
31.57
35.00
34.02
31.71
28.34
35.15
31.86
34.17
28.48
32.00
28.62
34.32
28.76
32.15
28.90
32.29
29.04
32.44
29.18
29.32
29.46
29.60

38.05
39.00
36.92
30.60
39.96
40.91
34.50
38.20
37.07
39.16
40.11
38.35
37.23
41.07
34.79
39.31
31.18
37.38
40.27
38.50
39.46
35.09
37.53
38.65
40.42
35.24
39.61
37.68
31.76
38.80
35.39
37.83
39.76
32.05
35.53
38.96
37.98
35.68
32.34
39.11
35.83
38.13
32.48
35.97
32.62
38.27
32.76
36.12
32.91
36.27
33.05
36.41
33.19
33.33
33.47
33.62

41.99
42.94
40.87
34.57
43.90
44.85
38.45
42.14
41.02
43.10
44.05
42.29
41.17
45.01
38.75
43.25
35.15
41.32
44.21
42.44
43.40
39.04
41.47
42.60
44.36
39.19
43.55
41.62
35.74
42.75
39.34
41.77
43.71
36.03
39.49
42.90
41.92
39.64
36.32
43.05
39.79
42.07
36.46
39.93
36.61
42.22
36.75
40.08
36.89
40.23
37.04
40.38
37.18
37.32
37.47
37.61

45.93
46.89
44.81
38.53
47.84
48.79
42.40
46.09
44.97
47.04
48.00
46.24
45.12
48.95
42.70
47.19
39.12
45.27
48.15
46.39
47.35
43.00
45.42
46.54
48.30
43.15
47.50
45.57
39.71
46.70
43.30
45.72
47.65
40.00
43.45
46.85
45.87
43.60
40.29
47.00
43.75
46.02
40.44
43.89
40.59
46.17
40.73
44.04
40.88
44.19
41.02
44.34
41.17
41.31
41.45
41.60

50.82
51.77
49.70
43.44
52.73
53.68
47.29
50.97
49.85
51.93
52.88
51.12
50.01
53.83
47.59
52.08
44.03
50.16
53.03
51.28
52.23
47.90
50.31
51.43
53.19
48.05
52.39
50.46
44.62
51.58
48.20
50.61
52.54
44.92
48.35
51.74
50.76
48.50
45.21
51.89
48.64
50.92
45.36
48.79
45.50
51.07
45.65
48.94
45.80
49.09
45.94
49.24
46.09
46.23
46.38
46.53

55.39
56.34
54.27
48.02
57.29
58.24
51.87
55.54
54.42
56.49
57.45
55.69
54.58
58.40
52.17
56.65
48.62
54.73
57.60
55.85
56.80
52.47
54.88
56.00
57.75
52.62
56.96
55.03
49.21
56.15
52.77
55.19
57.11
49.51
52.92
56.31
55.34
53.07
49.80
56.46
53.22
55.49
49.95
53.37
50.10
55.64
50.25
53.52
50.39
53.67
50.54
53.82
50.69
50.83
50.98
51.13

61.69
62.64
60.58
54.34
63.60
64.55
58.18
61.85
60.73
62.80
63.75
62.00
60.88
64.70
58.48
62.95
54.94
61.04
63.90
62.15
63.11
58.79
61.19
62.31
64.06
58.94
63.26
61.34
55.54
62.46
59.09
61.50
63.41
55.84
59.24
62.61
61.65
59.39
56.13
62.77
59.54
61.80
56.28
59.69
56.43
61.95
56.58
59.84
56.73
59.99
56.88
60.14
57.02
57.17
57.32
57.47

77.45
78.40
76.34
70.12
79.35
80.30
73.95
77.60
76.49
78.56
79.51
77.76
76.65
80.46
74.25
78.71
70.73
76.80
79.66
77.91
78.86
74.56
76.95
78.07
79.82
74.71
79.02
77.11
71.33
78.22
74.86
77.26
79.17
71.64
75.02
78.38
77.41
75.17
71.94
78.53
75.32
77.57
72.09
75.47
72.24
77.72
72.39
75.63
72.54
75.78
72.69
75.93
72.84
72.99
73.14
73.29

2.222
2.250
2.250
2.250
2.286
2.333
2.333
2.353
2.368
2.400
2.462
2.500
2.500
2.545
2.545
2.571
2.571
2.647
2.667
2.667
2.769
2.800
2.813
2.857
2.909
2.947
3.000
3.000
3.000
3.077
3.111
3.214
3.273
3.273
3.294
3.333
3.462
3.500
3.600
3.636
3.733
3.750
3.789
4.000
4.000
4.091
4.235
4.308
4.500
4.667
4.800
5.091
5.143
5.538
6.000
6.545

1.10

1.10

1.10

1.10

1.20

1.20

1.20

1.20

1.20

1.20

1.20

1.20

1.20

1.20

1.00

1.00

1280-8MGT
P.L 50.394
160 teeth

14.32 14.80 15.91 19.08
15.30 15.78 16.89 20.06
13.14 13.63 14.75 17.93
11.24
16.28 16.75 17.86 21.02
17.25 17.72 18.83 21.99
10.53 11.03 12.17 15.41
14.46 14.94 16.05 19.23
13.28 13.77 14.89 18.08
15.44 15.92 17.03 20.20
16.42 16.90 18.01 21.17
14.60 15.08 16.20 19.38
13.43 13.91 15.03 18.22
17.39 17.87 18.98 22.14
10.79 11.29 12.44 15.69
15.59 16.07 17.18 20.35
11.76
13.56 14.05 15.17 18.37
16.57 17.05 18.16 21.32
14.75 15.23 16.34 19.52
15.73 16.21 17.32 20.50
11.06 11.56 12.71 15.97
13.70 14.19 15.31 18.51
14.89 15.37 16.49 19.67
16.72 17.19 18.30 21.47
11.19 11.69 12.84 16.10
15.88 16.36 17.47 20.65
13.84 14.33 15.45 18.65
12.27
15.03 15.51 16.63 19.81
11.32 11.82 12.98 16.24
13.98 14.47 15.59 18.80
16.02 16.50 17.61 20.79
12.52
11.45 11.95 13.11 16.38
15.17 15.65 16.77 19.96
14.12 14.61 15.73 18.94
11.58 12.08 13.24 16.52
12.78
15.31 15.80 16.91 20.10
11.71 12.21 13.38 16.65
14.26 14.75 15.87 19.08
12.90
11.84 12.35 13.51 16.79
9.42 13.03
14.40 14.88 16.01 19.22
9.53 13.16
11.97 12.48 13.64 16.93
9.65 13.28
12.10 12.61 13.77 17.06
9.77 13.41
12.23 12.74 13.90 17.20
9.89 13.53
10.00 13.66
10.12 13.78
8.80 10.24 13.91

1224-8MGT
P.L 48.189
153 teeth

Speed
Ratio

1200-8MGT
P.L 47.244
150 teeth

1440-8MGT
P.L 56.693
180 teeth

Center Distance, Inches

1.10

1.10

No. of
Grooves

No. of
Grooves

36
32
40
64
28
24
48
34
38
30
26
32
36
22
44
28
56
34
24
30
26
40
32
28
22
38
24
30
48
26
36
28
22
44
34
24
26
32
40
22
30
24
38
28
36
22
34
26
32
24
30
22
28
26
24
22

80
72
90
144
64
56
112
80
90
72
64
80
90
56
112
72
144
90
64
80
72
112
90
80
64
112
72
90
144
80
112
90
72
144
112
80
90
112
144
80
112
90
144
112
144
90
144
112
144
112
144
112
144
144
144
144

*This length factor must be used to determine the proper belt width.
Teeth in Mesh Factor:

1.0

0.8

0.6

Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 35

14mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.034
1.036
1.053
1.056
1.059
1.059
1.063
1.063
1.067
1.067
1.071
1.071
1.077
1.083
1.091
1.100
1.103
1.111
1.111
1.118
1.125
1.125
1.125
1.133
1.133
1.143
1.143
1.154
1.158
1.167
1.172
1.176
1.176
1.182
1.188
1.200
1.200
1.200
1.214
1.214
1.222
1.231
1.241
1.250
1.250
1.250
1.250

Length Factor*

11.30
11.02
10.75
10.20
9.65
9.09
8.54
7.99

15.71
15.43
15.16
14.61
14.06
13.50
12.95
12.40
11.30
10.20

19.84
19.57
19.29
18.74
18.19
17.64
17.09
16.54
15.43
14.33
13.23
12.13

23.98
23.70
23.43
22.88
22.33
21.77
21.22
20.67
19.57
18.47
17.36
16.26
15.16
14.06
12.96

27.28
27.01
26.73
26.18
25.63
25.08
24.53
23.98
22.87
21.77
20.67
19.57
18.46
17.36
16.26
15.16

10.88
11.16
8.26
8.82
9.37

15.30
15.57
12.68
13.23
13.78

19.43
19.71
16.81
17.36
17.91

23.57
23.84
20.95
21.50
22.05

9.92

14.33

18.47

10.47

14.88

19.02

11.02

15.43

10.61
8.54

9.64
10.74
11.84
15.02
12.95

19.57
11.57
12.67
13.78
14.88
15.98
19.15
17.08

22.60
13.50
23.15
14.60
23.70
15.71
16.81
17.91
19.01
20.12
23.29
21.22

9.09
9.64

13.50
14.05

17.64
18.19

21.77
22.32
12.94

26.87
27.15
24.25
24.80
25.35
15.71
25.91
16.81
26.46
17.91
27.01
19.01
20.12
21.22
22.32
23.42
26.59
24.52
14.04
25.08
25.63
16.24

10.19

14.60

18.74

10.74

15.15

19.29

22.87
14.04
23.43
15.14
16.25
20.39
17.35
23.01
21.49

10.32
8.80

14.74
13.22

12.11
16.25
13.21
18.87
17.36

9.35
9.91

10.17
13.77
14.32
11.28

14.31
17.91
18.46
15.42

10.46

14.87

19.01

7.96

12.38

10.04
9.07

14.46
13.49

16.52
11.53
18.59
17.62
12.63

18.45
22.04
22.59
19.56
13.46
23.15
14.57
20.66
15.68
22.73
21.76
16.78

0.80

0.80

0.90

0.90

12.11

29.49
29.21
28.94
28.39
27.84
27.28
26.73
26.18
25.08
23.98
22.87
21.77
20.67
19.57
18.47
17.36
15.16
29.08
29.35
26.46
27.01
27.56
17.91
28.11
19.01
28.66
20.11
29.21
21.22
22.32
23.42
24.53
25.63
28.80
26.73
16.24
27.28
27.83
18.45

26.18
17.35
26.73
18.45
19.55
23.69
20.66
26.32
24.80
14.57
21.76
25.35
25.90
22.86
16.78
26.45
17.88
23.97
18.99
26.04
25.07
20.09
15.09

28.38
19.55
28.94
20.66
21.76
25.90
22.86
28.52
27.00
16.78
23.97
27.55
28.11
25.07
18.99
28.66
20.09
26.17
21.19
28.24
27.27
22.30
17.30
14.80

33.62
33.35
33.07
32.52
31.97
31.42
30.87
30.32
29.21
28.11
27.01
25.91
24.80
23.70
22.60
21.50
19.29
33.21
33.49
30.59
31.14
31.69
22.05
32.25
23.15
32.80
24.25
33.35
25.35
26.46
27.56
28.66
29.76
32.93
30.87
20.38
31.42
31.97
22.59
17.89
32.52
23.69
33.07
24.79
25.90
30.04
27.00
32.66
31.14
20.92
28.10
31.69
32.24
29.21
23.13
32.79
24.23
30.31
25.33
32.38
31.41
26.44
21.45
18.95

0.95

0.95

1.00

2590-14MGT
P.L 101.968
185 teeth

4.912
5.088
5.263
5.614
5.965
6.316
6.667
7.018
7.720
8.421
9.123
9.825
10.527
11.229
11.930
12.632
14.036
5.263
5.088
7.018
6.667
6.316
12.632
5.965
11.930
5.614
11.229
5.263
10.527
9.825
9.123
8.421
7.720
5.614
7.018
14.036
6.667
6.316
12.632
15.790
5.965
11.930
5.614
11.229
10.527
7.720
9.825
5.965
7.018
14.036
9.123
6.667
6.316
8.421
12.632
5.965
11.930
7.720
11.229
6.316
7.018
10.527
14.036
15.790

2450-14MGT
P.L 96.457
175 teeth

28
29
30
32
34
36
38
40
44
48
52
56
60
64
68
72
80
30
29
40
38
36
72
34
68
32
64
30
60
56
52
48
44
32
40
80
38
36
72
90
34
68
32
64
60
44
56
34
40
80
52
38
36
48
72
34
68
44
64
36
40
60
80
90

2310-14MGT
P.L 90.945
165 teeth

4.912
5.088
5.263
5.614
5.965
6.316
6.667
7.018
7.720
8.421
9.123
9.825
10.527
11.229
11.930
12.632
14.036
5.088
4.912
6.667
6.316
5.965
11.930
5.614
11.229
5.263
10.527
4.912
9.825
9.123
8.421
7.720
7.018
5.088
6.316
12.632
5.965
5.614
11.229
14.036
5.263
10.527
4.912
9.825
9.123
6.667
8.421
5.088
5.965
11.930
7.720
5.614
5.263
7.018
10.527
4.912
9.825
6.316
9.123
5.088
5.614
8.421
11.229
12.632

2100-14MGT
P.L 82.677
150 teeth

28
29
30
32
34
36
38
40
44
48
52
56
60
64
68
72
80
29
28
38
36
34
68
32
64
30
60
28
56
52
48
44
40
29
36
72
34
32
64
80
30
60
28
56
52
38
48
29
34
68
44
32
30
40
60
28
56
36
52
29
32
48
64
72

1890-14MGT
P.L 74.409
135 teeth

Speed
Ratio

1778-14MGT
P.L 70.000
127 teeth

Pitch
Diameter
(Inches)

1610-14MGT
P.L 63.386
115 teeth

No.
of
Grooves

1400-14MGT
P.L 55.118
100 teeth

Pitch
Diameter
(Inches)

1190-14MGT
P.L 46.850
85 teeth

No.
of
Grooves

966-14MGT
P.L 38.031
69 teeth

Center Distance, Inches

37.75
37.48
37.20
36.65
36.10
35.55
35.00
34.45
33.34
32.24
31.14
30.04
28.93
27.83
26.73
25.63
23.42
37.34
37.62
34.72
35.27
35.82
26.18
36.38
27.28
36.93
28.38
37.48
29.48
30.59
31.69
32.79
33.89
37.06
35.00
24.51
35.55
36.10
26.72
22.03
36.65
27.82
37.20
28.93
30.03
34.17
31.13
36.79
35.27
25.05
32.23
35.82
36.37
33.34
27.26
36.92
28.36
34.44
29.47
36.51
35.54
30.57
25.59
23.09

40.51
40.24
39.96
39.41
38.86
38.31
37.76
37.21
36.10
35.00
33.90
32.80
31.69
30.59
29.49
28.39
26.18
40.10
40.38
37.48
38.03
38.58
28.94
39.14
30.04
39.69
31.14
40.24
32.24
33.35
34.45
35.55
36.65
39.82
37.76
27.28
38.31
38.86
29.48
24.79
39.41
30.58
39.96
31.69
32.79
36.93
33.89
39.55
38.03
27.82
34.99
38.58
39.13
36.10
30.02
39.68
31.13
37.20
32.23
39.27
38.30
33.33
28.35
25.86

43.27
42.99
42.72
42.17
41.62
41.06
40.51
39.96
38.86
37.76
36.65
35.55
34.45
33.35
32.25
31.14
28.94
42.86
43.13
40.24
40.79
41.34
31.69
41.89
32.79
42.44
33.90
42.99
35.00
36.10
37.20
38.31
39.41
42.58
40.51
30.03
41.06
41.61
32.24
27.55
42.17
33.34
42.72
34.44
35.54
39.68
36.65
42.30
40.78
30.57
37.75
41.34
41.89
38.85
32.78
42.44
33.88
39.95
34.98
42.02
41.06
36.09
31.11
28.62

1.00

1.00

1.05

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 36

R

The Gates Rubber Company

14mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN
5740-14MGT
P.L 225.984
410 teeth

6160-14MGT
P.L 242.520
440 teeth

6860-14MGT
P.L 270.079
490 teeth

5320-14MGT
P.L 209.449
380 teeth

4956-14MGT
P.L 195.118
354 teeth

4578-14MGT
P.L 180.236
327 teeth

4326-14MGT
P.L 170.315
309 teeth

3850-14MGT
P.L 151.575
275 teeth

3500-14MGT
P.L 137.795
250 teeth

3360-14MGT
P.L 132.283
240 teeth

3150-14MGT
P.L 124.016
225 teeth

2800-14MGT
P.L 110.236
200 teeth

Center Distance, Inches
Speed
Ratio

47.40
47.13
46.85
46.30
45.75
45.20
44.65
44.10
42.99
41.89
40.79
39.69
38.58
37.48
36.38
35.28
33.07
46.99
47.27
44.37
44.92
45.47
35.83
46.03
36.93
46.58
38.03
47.13
39.13
40.24
41.34
42.44
43.54
46.71
44.65
34.17
45.20
45.75
36.37
31.68
46.30
37.48
46.85
38.58
39.68
43.82
40.78
46.44
44.92
34.71
41.89
45.47
46.02
42.99
36.92
46.57
38.02
44.09
39.12
46.16
45.19
40.22
35.25
32.76

54.29
54.02
53.74
53.19
52.64
52.09
51.54
50.99
49.88
48.78
47.68
46.58
45.47
44.37
43.27
42.17
39.96
53.88
54.16
51.26
51.81
52.36
42.72
52.92
43.82
53.47
44.92
54.02
46.02
47.13
48.23
49.33
50.43
53.60
51.54
41.06
52.09
52.64
43.26
38.57
53.19
44.37
53.74
45.47
46.57
50.71
47.67
53.33
51.81
41.60
48.78
52.36
52.91
49.88
43.81
53.46
44.91
50.98
46.01
53.05
52.08
47.12
42.14
39.66

58.42
58.15
57.87
57.32
56.77
56.22
55.67
55.12
54.01
52.91
51.81
50.71
49.60
48.50
47.40
46.30
44.09
58.01
58.29
55.39
55.94
56.49
46.85
57.05
47.95
57.60
49.05
58.15
50.15
51.26
52.36
53.46
54.56
57.73
55.67
45.19
56.22
56.77
47.39
42.71
57.32
48.50
57.87
49.60
50.70
54.84
51.80
57.46
55.94
45.73
52.91
56.49
57.04
54.01
47.94
57.59
49.04
55.11
50.14
57.18
56.21
51.25
46.28
43.79

61.18
60.91
60.63
60.08
59.53
58.98
58.43
57.88
56.77
55.67
54.57
53.47
52.36
51.26
50.16
49.06
46.85
60.77
61.05
58.15
58.70
59.25
49.61
59.81
50.71
60.36
51.81
60.91
52.91
54.02
55.12
56.22
57.32
60.49
58.43
47.95
58.98
59.53
50.15
45.47
60.08
51.26
60.63
52.36
53.46
57.60
54.57
60.22
58.70
48.49
55.67
59.25
59.80
56.77
50.70
60.35
51.80
57.87
52.91
59.94
58.97
54.01
49.04
46.55

68.07
67.79
67.52
66.97
66.42
65.86
65.31
64.76
63.66
62.56
61.45
60.35
59.25
58.15
57.05
55.94
53.74
67.66
67.93
65.04
65.59
66.14
56.49
66.69
57.59
67.24
58.70
67.79
59.80
60.90
62.00
63.11
64.21
67.38
65.31
54.84
65.86
66.41
57.04
52.35
66.97
58.14
67.52
59.25
60.35
64.48
61.45
67.10
65.59
55.38
62.55
66.14
66.69
63.66
57.59
67.24
58.69
64.76
59.79
66.83
65.86
60.89
55.92
53.44

77.44
77.16
76.89
76.34
75.79
75.23
74.68
74.13
73.03
71.93
70.82
69.72
68.62
67.52
66.42
65.31
63.11
77.03
77.30
74.41
74.96
75.51
65.86
76.06
66.97
76.61
68.07
77.16
69.17
70.27
71.38
72.48
73.58
76.75
74.68
64.21
75.23
75.78
66.41
61.72
76.34
67.51
76.89
68.62
69.72
73.85
70.82
76.47
74.96
64.75
71.92
75.51
76.06
73.03
66.96
76.61
68.06
74.13
69.16
76.20
75.23
70.27
65.30
62.81

82.40
82.13
81.85
81.30
80.75
80.20
79.65
79.10
77.99
76.89
75.79
74.69
73.58
72.48
71.38
70.28
68.07
81.99
82.27
79.37
79.92
80.47
70.83
81.03
71.93
81.58
73.03
82.13
74.13
75.24
76.34
77.44
78.54
81.71
79.65
69.17
80.20
80.75
71.38
66.69
81.30
72.48
81.85
73.58
74.68
78.82
75.79
81.44
79.92
69.72
76.89
80.47
81.02
77.99
71.92
81.58
73.03
79.09
74.13
81.16
80.20
75.23
70.26
67.78

89.84
89.57
89.29
88.74
88.19
87.64
87.09
86.54
85.43
84.33
83.23
82.13
81.02
79.92
78.82
77.72
75.51
89.43
89.71
86.81
87.36
87.91
78.27
88.47
79.37
89.02
80.47
89.57
81.57
82.68
83.78
84.88
85.98
89.15
87.09
76.61
87.64
88.19
78.82
74.13
88.74
79.92
89.29
81.02
82.12
86.26
83.23
88.88
87.36
77.16
84.33
87.91
88.46
85.43
79.36
89.02
80.47
86.53
81.57
88.60
87.64
82.67
77.70
75.22

97.01
96.73
96.46
95.91
95.36
94.80
94.25
93.70
92.60
91.50
90.39
89.29
88.19
87.09
85.99
84.88
82.68
96.60
96.87
93.98
94.53
95.08
85.43
95.63
86.54
96.18
87.64
96.73
88.74
89.84
90.95
92.05
93.15
96.32
94.25
83.78
94.80
95.35
85.98
81.29
95.91
87.08
96.46
88.19
89.29
93.42
90.39
96.04
94.53
84.32
91.49
95.08
95.63
92.60
86.53
96.18
87.63
93.70
88.73
95.77
94.80
89.84
84.87
82.39

105.27
105.00
104.72
104.17
103.62
103.07
102.52
101.97
100.86
99.76
98.66
97.56
96.45
95.35
94.25
93.15
90.94
104.86
105.14
102.24
102.79
103.34
93.70
103.90
94.80
104.45
95.90
105.00
97.00
98.11
99.21
100.31
101.41
104.58
102.52
92.04
103.07
103.62
94.25
89.56
104.17
95.35
104.72
96.45
97.55
101.69
98.66
104.31
102.79
92.59
99.76
103.34
103.89
100.86
94.80
104.45
95.90
101.96
97.00
104.03
103.07
98.10
93.14
90.65

113.54
113.27
112.99
112.44
111.89
111.34
110.79
110.24
109.13
108.03
106.93
105.83
104.72
103.62
102.52
101.42
99.21
113.13
113.41
110.51
111.06
111.61
101.97
112.17
103.07
112.72
104.17
113.27
105.27
106.38
107.48
108.58
109.68
112.85
110.79
100.31
111.34
111.89
102.52
97.83
112.44
103.62
112.99
104.72
105.82
109.96
106.93
112.58
111.06
100.86
108.03
111.61
112.16
109.13
103.07
112.72
104.17
110.23
105.27
112.30
111.34
106.37
101.41
98.92

127.32
127.05
126.77
126.22
125.67
125.12
124.57
124.02
122.91
121.81
120.71
119.61
118.50
117.40
116.30
115.20
112.99
126.91
127.19
124.29
124.84
125.39
115.75
125.95
116.85
126.50
117.95
127.05
119.06
120.16
121.26
122.36
123.46
126.63
124.57
114.09
125.12
125.67
116.30
111.61
126.22
117.40
126.77
118.50
119.60
123.74
120.71
126.36
124.84
114.64
121.81
125.39
125.94
122.91
116.85
126.50
117.95
124.01
119.05
126.08
125.12
120.15
115.19
112.71

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.034
1.036
1.053
1.056
1.059
1.059
1.063
1.063
1.067
1.067
1.071
1.071
1.077
1.083
1.091
1.100
1.103
1.111
1.111
1.118
1.125
1.125
1.125
1.133
1.133
1.143
1.143
1.154
1.158
1.167
1.172
1.176
1.176
1.182
1.188
1.200
1.200
1.200
1.214
1.214
1.222
1.231
1.241
1.250
1.250
1.250
1.250

1.05

1.05

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

No. of
grooves

No. of
grooves

28
29
30
32
34
36
38
40
44
48
52
56
60
64
68
72
80
29
28
38
36
34
68
32
64
30
60
28
56
52
48
44
40
29
36
72
34
32
64
80
30
60
28
56
52
38
48
29
34
68
44
32
30
40
60
28
56
36
52
29
32
48
64
72

28
29
30
32
34
36
38
40
44
48
52
56
60
64
68
72
80
30
29
40
38
36
72
34
68
32
64
30
60
56
52
48
44
32
40
80
38
36
72
90
34
68
32
64
60
44
56
34
40
80
52
38
36
48
72
34
68
44
64
36
40
60
80
90

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.
R

The Driving Force in Power Transmission.

Page 37

14mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

1.263
1.267
1.273
1.286
1.286
1.294
1.300
1.308
1.310
1.324
1.333
1.333
1.333
1.333
1.357
1.364
1.368
1.375
1.379
1.385
1.400
1.400
1.406
1.412
1.417
1.429
1.429
1.444
1.455
1.467
1.474
1.500
1.500
1.500
1.500
1.517
1.529
1.538
1.545
1.556
1.556
1.571
1.579
1.600
1.600
1.607
1.625
1.636
1.647
1.647
1.655
1.667
1.667
1.684
1.700
1.714
1.731
1.733
1.750
1.750
1.765
1.778
1.789
1.793

Length Factor*

11.54
14.04
9.59
14.59

15.69
18.18
13.74
18.73

18.31

19.83
22.31
17.88
22.87
13.99
20.93
18.99
15.09
22.45

23.13
25.62
21.19
26.17
17.31
24.24
22.30
18.41
25.76

8.22

12.65
10.70

16.79
14.85

9.75

14.17

9.33

13.75
11.80

17.89
15.95
12.05

22.03
20.09
16.20

9.88

14.30

8.48
9.46

10.95
12.91
13.88

18.45
13.15
15.11
17.05
18.03

10.10

14.26

22.58
17.31
19.25
21.20
22.17
14.50
18.41

12.06

16.21
11.44
18.16

9.62
10.17

9.59

14.02
11.21

8.73
7.87

8.86

8.98
8.11

8.24

8.36

20.36
15.61
22.30
12.78
19.52
16.72
21.46
18.68
20.62
17.83
15.01

25.34
23.40
19.52
15.61
25.89
20.62
22.57
24.50
25.47
17.83
21.73

25.34
27.83
23.40
28.38
19.52
26.44
24.51
20.62
27.96
15.31
27.55
25.61
21.73
17.83
28.10
22.83
24.77
26.71
27.68
20.04
23.94

29.48
31.96
27.54
32.51
23.66
30.58
28.64
24.77
32.10
19.47
31.68
29.75
25.87
21.98
32.23
26.97
28.91
30.85
31.82
24.19
28.08

23.67
18.94
25.61
16.12
22.83
20.04
24.77
21.99
23.94
21.15
18.34
14.08
24.91
23.10
16.63
19.45
22.25

15.82
25.88
21.15
27.82
18.34
25.04
22.25
26.98
24.20
26.14
23.36
20.56
16.32
27.11
25.31
18.86
21.67
24.46

19.99
30.02
25.30
31.95
22.50
29.18
26.40
31.12
28.34
30.28
27.50
24.72
20.50
31.25
29.45
23.02
25.82
28.61

25.04
21.41
24.20
20.56
14.58
23.36
18.86
22.52

27.25
23.62
26.41
22.78
16.82
25.57
21.08
24.73

31.39
27.77
30.55
26.93
21.01
29.71
25.24
28.87

26.54
23.88
19.36
23.04
22.19
26.68
17.32
25.83
24.99

13.17
10.35
12.32
9.48

15.37
12.55
17.32
14.52
16.48
13.67

13.30
11.47

17.45
15.63

10.60

11.94
14.78

21.60
19.78
13.28
16.12
18.94

13.43
9.73
12.58

17.58
13.92
16.74
13.06

21.73
18.09
20.89
17.24

11.72
10.85

15.89
11.31
15.03

20.04
15.52
19.20

12.71
9.97

16.87
14.17

12.83

13.31
12.43
17.00

21.02
18.35
13.77
17.49
16.63
21.15

11.97
11.10

16.15
15.29

20.30
19.46

24.33
21.67
17.13
20.82
19.97
24.47
15.06
23.62
22.78

10.22

12.10

14.43
13.56
12.68
16.27

18.60
17.74
16.88
20.43

21.93
21.08
20.22
23.75

24.14
23.30
22.44
25.97

30.68
28.03
23.53
27.19
26.34
30.82
21.51
29.98
29.14
16.55
28.30
27.45
26.60
30.11

0.80

0.90

0.90

0.95

0.95

1.00

0.80

2590-14MGT
P.L 101.968
185 teeth

8.421
6.667
9.825
6.316
12.632
7.720
9.123
11.930
6.667
15.790
7.018
8.421
11.229
14.036
6.667
10.527
9.123
7.720
7.018
12.632
9.825
19.650
15.790
8.421
11.930
7.018
14.036
9.123
11.229
7.720
9.825
8.421
10.527
12.632
15.790
7.720
9.123
14.036
11.930
9.825
19.650
7.720
10.527
8.421
11.229
15.790
9.123
12.632
9.825
19.650
8.421
10.527
14.036
11.229
11.930
8.421
15.790
9.123
9.825
19.650
10.527
11.229
11.930
9.123

2450-14MGT
P.L 96.457
175 teeth

48
38
56
36
72
44
52
68
38
90
40
48
64
80
38
60
52
44
40
72
56
112
90
48
68
40
80
52
64
44
56
48
60
72
90
44
52
80
68
56
112
44
60
48
64
90
52
72
56
112
48
60
80
64
68
48
90
52
56
112
60
64
68
52

2310-14MGT
P.L 90.945
165 teeth

6.667
5.263
7.720
4.912
9.825
5.965
7.018
9.123
5.088
11.930
5.263
6.316
8.421
10.527
4.912
7.720
6.667
5.614
5.088
9.123
7.018
14.036
11.229
5.965
8.421
4.912
9.825
6.316
7.720
5.263
6.667
5.614
7.018
8.421
10.527
5.088
5.965
9.123
7.720
6.316
12.632
4.912
6.667
5.263
7.018
9.825
5.614
7.720
5.965
11.930
5.088
6.316
8.421
6.667
7.018
4.912
9.123
5.263
5.614
11.229
5.965
6.316
6.667
5.088

2100-14MGT
P.L 82.677
150 teeth

38
30
44
28
56
34
40
52
29
68
30
36
48
60
28
44
38
32
29
52
40
80
64
34
48
28
56
36
44
30
38
32
40
48
60
29
34
52
44
36
72
28
38
30
40
56
32
44
34
68
29
36
48
38
40
28
52
30
32
64
34
36
38
29

1890-14MGT
P.L 74.409
135 teeth

Speed
Ratio

1778-14MGT
P.L 70.000
127 teeth

Pitch
Diameter
(Inches)

1610-14MGT
P.L 63.386
115 teeth

No.
of
Grooves

1400-14MGT
P.L 55.118
100 teeth

Pitch
Diameter
(Inches)

1190-14MGT
P.L 46.850
85 teeth

No.
of
Grooves

966-14MGT
P.L 38.031
69 teeth

Center Distance, Inches

33.61
36.09
31.67
36.64
27.80
34.71
32.78
28.90
36.23
23.62
35.81
33.88
30.00
26.12
36.37
31.11
33.05
34.98
35.95
28.33
32.21
18.80
24.14
34.15
29.43
36.08
26.65
33.31
30.54
35.25
32.48
34.42
31.64
28.86
24.66
35.39
33.58
27.17
29.96
32.75
19.80
35.52
31.91
34.69
31.07
25.18
33.85
29.38
33.01
20.30
34.82
32.17
27.69
31.33
30.49
34.95
25.69
34.12
33.28
20.79
32.44
31.59
30.75
34.25

36.37
38.85
34.43
39.41
30.56
37.47
35.54
31.66
38.99
26.39
38.57
36.64
32.77
28.88
39.13
33.87
35.81
37.74
38.71
31.09
34.97
21.59
26.91
36.91
32.20
38.85
29.41
36.08
33.30
38.01
35.24
37.18
34.41
31.62
27.43
38.15
36.35
29.94
32.73
35.51
22.60
38.28
34.67
37.45
33.83
27.95
36.61
32.15
35.78
23.10
37.58
34.94
30.46
34.10
33.26
37.72
28.47
36.88
36.04
23.60
35.20
34.36
33.52
37.01

39.13
41.61
37.19
42.16
33.32
40.23
38.29
34.42
41.75
29.15
41.33
39.40
35.52
31.64
41.88
36.63
38.56
40.50
41.47
33.85
37.73
24.37
29.68
39.67
34.96
41.60
32.18
38.83
36.06
40.77
38.00
39.94
37.16
34.39
30.20
40.90
39.10
32.70
35.49
38.27
25.39
41.04
37.43
40.21
36.59
30.72
39.37
34.91
38.54
25.89
40.34
37.70
33.23
36.86
36.02
40.48
31.24
39.64
38.80
26.40
37.96
37.12
36.28
39.77

1.00

1.00

1.05

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 38

R

The Gates Rubber Company

14mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN
5740-14MGT
P.L 225.984
410 teeth

6160-14MGT
P.L 242.520
440 teeth

6860-14MGT
P.L 270.079
490 teeth

5320-14MGT
P.L 209.449
380 teeth

4956-14MGT
P.L 195.118
354 teeth

4578-14MGT
P.L 180.236
327 teeth

4326-14MGT
P.L 170.315
309 teeth

3850-14MGT
P.L 151.575
275 teeth

3500-14MGT
P.L 137.795
250 teeth

3360-14MGT
P.L 132.283
240 teeth

3150-14MGT
P.L 124.016
225 teeth

2800-14MGT
P.L 110.236
200 teeth

Center Distance, Inches
Speed
Ratio

43.26
45.74
41.33
46.30
37.46
44.36
42.43
38.56
45.88
33.29
45.47
43.53
39.66
35.79
46.02
40.76
42.70
44.64
45.60
37.99
41.87
28.52
33.82
43.80
39.10
45.74
36.32
42.97
40.20
44.91
42.14
44.07
41.30
38.53
34.35
45.04
43.24
36.85
39.63
42.41
29.56
45.18
41.57
44.34
40.73
34.87
43.51
39.06
42.67
30.07
44.48
41.84
37.38
41.00
40.16
44.61
35.40
43.78
42.94
30.58
42.11
41.27
40.43
43.91

50.15
52.64
48.22
53.19
44.35
51.25
49.32
45.45
52.77
40.19
52.36
50.42
46.56
42.68
52.91
47.66
49.59
51.53
52.49
44.89
48.76
35.44
40.73
50.70
45.99
52.63
43.22
49.86
47.09
51.80
49.03
50.97
48.20
45.43
41.26
51.93
50.14
43.75
46.53
49.30
36.49
52.07
48.47
51.24
47.63
41.79
50.41
45.96
49.57
37.01
51.37
48.74
44.28
47.90
47.06
51.51
42.31
50.67
49.84
37.52
49.00
48.17
47.33
50.81

54.28
56.77
52.35
57.32
48.48
55.38
53.45
49.59
56.90
44.33
56.49
54.56
50.69
46.82
57.04
51.79
53.72
55.66
56.62
49.02
52.89
39.58
44.86
54.83
50.13
56.76
47.35
54.00
51.23
55.93
53.16
55.10
52.33
49.56
45.39
56.07
54.27
47.89
50.66
53.43
40.63
56.20
52.60
55.37
51.77
45.93
54.54
50.10
53.70
41.16
55.51
52.87
48.42
52.03
51.20
55.64
46.45
54.81
53.97
41.67
53.14
52.30
51.47
54.94

57.04
59.53
55.11
60.08
51.24
58.15
56.21
52.35
59.66
47.09
59.25
57.32
53.45
49.58
59.80
54.55
56.49
58.42
59.38
51.78
55.65
42.35
47.62
57.59
52.89
59.52
50.12
56.76
53.99
58.69
55.92
57.86
55.09
52.32
48.16
58.83
57.03
50.65
53.43
56.20
43.40
58.96
55.36
58.13
54.53
48.69
57.30
52.86
56.47
43.93
58.27
55.63
51.19
54.80
53.96
58.40
49.22
57.57
56.74
44.45
55.90
55.07
54.23
57.70

63.93
66.41
62.00
66.96
58.13
65.03
63.10
59.23
66.55
53.98
66.13
64.20
60.34
56.47
66.69
61.44
63.37
65.30
66.27
58.67
62.54
49.25
54.52
64.47
59.78
66.41
57.01
63.64
60.88
65.58
62.81
64.75
61.98
59.21
55.05
65.71
63.92
57.54
60.32
63.08
50.31
65.85
62.25
65.02
61.42
55.59
64.19
59.75
63.35
50.84
65.15
62.52
58.08
61.69
60.85
65.29
56.12
64.46
63.62
51.36
62.79
61.96
61.12
64.59

73.30
75.78
71.37
76.33
67.50
74.40
72.47
68.61
75.92
63.35
75.50
73.57
69.71
65.84
76.06
70.81
72.74
74.68
75.64
68.05
71.91
58.63
63.89
73.85
69.15
75.78
66.38
73.02
70.25
74.95
72.18
74.12
71.35
68.59
64.43
75.08
73.29
66.92
69.69
72.46
59.70
75.22
71.62
74.39
70.79
64.97
73.56
69.13
72.73
60.23
74.53
71.90
67.46
71.06
70.23
74.66
65.50
73.83
73.00
60.76
72.17
71.33
70.50
73.97

78.26
80.75
76.33
81.30
72.47
79.37
77.44
73.57
80.88
68.32
80.47
78.54
74.67
70.81
81.02
75.78
77.71
79.64
80.61
73.01
76.88
63.60
68.86
78.81
74.12
80.74
71.35
77.98
75.22
79.91
77.15
79.08
76.32
73.55
69.40
80.05
78.25
71.89
74.66
77.42
64.67
80.19
76.59
79.36
75.76
69.94
78.53
74.09
77.69
65.20
79.49
76.86
72.43
76.03
75.20
79.63
70.47
78.80
77.97
65.73
77.13
76.30
75.47
78.93

85.71
88.19
83.77
88.74
79.91
86.81
84.88
81.01
88.32
75.76
87.91
85.98
82.11
78.25
88.46
83.22
85.15
87.08
88.05
80.45
84.32
71.05
76.31
86.25
81.56
88.18
78.79
85.42
82.66
87.35
84.59
86.53
83.76
81.00
76.85
87.49
85.70
79.33
82.10
84.86
72.12
87.63
84.03
86.80
83.20
77.38
85.97
81.54
85.14
72.65
86.93
84.31
79.87
83.47
82.64
87.07
77.92
86.24
85.41
73.19
84.58
83.74
82.91
86.38

92.87
95.35
90.94
95.90
87.08
93.97
92.04
88.18
95.49
82.93
95.08
93.14
89.28
85.42
95.63
90.38
92.32
94.25
95.21
87.62
91.49
78.22
83.47
93.42
88.72
95.35
85.96
92.59
89.83
94.52
91.76
93.69
90.93
88.16
84.01
94.66
92.86
86.50
89.27
92.03
79.29
94.79
91.20
93.96
90.37
84.55
93.13
88.71
92.30
79.83
94.10
91.47
87.04
90.64
89.81
94.24
85.09
93.41
92.58
80.36
91.74
90.91
90.08
93.54

101.14
103.62
99.20
104.17
95.34
102.24
100.31
96.44
103.75
91.20
103.34
101.41
97.55
93.68
103.89
98.65
100.58
102.51
103.48
95.89
99.75
86.49
91.74
101.68
96.99
103.61
94.23
100.85
98.09
102.79
100.02
101.96
99.19
96.43
92.28
102.92
101.13
94.77
97.53
100.30
87.57
103.06
99.47
102.23
98.64
92.82
101.40
96.97
100.57
88.10
102.37
99.74
95.31
98.91
98.08
102.50
93.36
101.67
100.84
88.64
100.01
99.18
98.35
101.81

109.41
111.89
107.48
112.44
103.61
110.51
108.58
104.72
112.02
99.47
111.61
109.68
105.82
101.95
112.16
106.92
108.85
110.78
111.75
104.16
108.02
94.76
100.01
109.95
105.26
111.89
102.50
109.13
106.36
111.06
108.30
110.23
107.47
104.70
100.56
111.19
109.40
103.04
105.81
108.57
95.84
111.33
107.74
110.50
106.91
101.10
109.67
105.25
108.84
96.38
110.64
108.01
103.58
107.18
106.35
110.77
101.64
109.94
109.11
96.92
108.28
107.45
106.62
110.08

123.19
125.67
121.26
126.22
117.39
124.29
122.36
118.50
125.81
113.25
125.39
123.46
119.60
115.73
125.94
120.70
122.63
124.56
125.53
117.94
121.80
108.55
113.80
123.74
119.04
125.67
116.28
122.91
120.14
124.84
122.08
124.01
121.25
118.49
114.34
124.97
123.18
116.83
119.59
122.35
109.63
125.11
121.52
124.28
120.69
114.88
123.45
119.03
122.62
110.17
124.42
121.79
117.37
120.96
120.13
124.56
115.43
123.73
122.90
110.71
122.07
121.24
120.41
123.86

1.263
1.267
1.273
1.286
1.286
1.294
1.300
1.308
1.310
1.324
1.333
1.333
1.333
1.333
1.357
1.364
1.368
1.375
1.379
1.385
1.400
1.400
1.406
1.412
1.417
1.429
1.429
1.444
1.455
1.467
1.474
1.500
1.500
1.500
1.500
1.517
1.529
1.538
1.545
1.556
1.556
1.571
1.579
1.600
1.600
1.607
1.625
1.636
1.647
1.647
1.655
1.667
1.667
1.684
1.700
1.714
1.731
1.733
1.750
1.750
1.765
1.778
1.789
1.793

1.05

1.05

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

No. of
grooves

No. of
grooves

38
30
44
28
56
34
40
52
29
68
30
36
48
60
28
44
38
32
29
52
40
80
64
34
48
28
56
36
44
30
38
32
40
48
60
29
34
52
44
36
72
28
38
30
40
56
32
44
34
68
29
36
48
38
40
28
52
30
32
64
34
36
38
29

48
38
56
36
72
44
52
68
38
90
40
48
64
80
38
60
52
44
40
72
56
112
90
48
68
40
80
52
64
44
56
48
60
72
90
44
52
80
68
56
112
44
60
48
64
90
52
72
56
112
48
60
80
64
68
48
90
52
56
112
60
64
68
52

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.
R

The Driving Force in Power Transmission.

Page 39

14mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

1.800
1.800
1.818
1.857
1.867
1.867
1.875
1.875
1.882
1.889
1.895
1.931
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.045
2.069
2.100
2.105
2.118
2.118
2.125
2.133
2.143
2.154
2.207
2.222
2.250
2.250
2.250
2.267
2.286
2.333
2.333
2.345
2.353
2.368
2.400
2.400
2.400
2.429
2.471
2.483
2.500
2.500
2.545
2.571
2.571
2.625
2.647
2.667
2.667
2.759
2.769
2.800
2.800
2.813
2.824
2.857

Length Factor*

7.70

2590-14MGT
P.L 101.968
185 teeth

12.632
25.264
14.036
9.123
9.825
19.650
10.527
15.790
11.229
11.930
12.632
9.825
9.825
10.527
11.229
11.930
12.632
14.036
19.650
25.264
15.790
10.527
29.475
14.036
12.632
25.264
11.930
11.229
10.527
19.650
11.229
14.036
12.632
15.790
25.264
11.930
11.229
19.650
29.475
11.930
14.036
15.790
12.632
25.264
33.686
11.930
29.475
12.632
14.036
15.790
19.650
12.632
25.264
29.475
15.790
14.036
33.686
14.036
25.264
19.650
29.475
15.790
33.686
14.036

2450-14MGT
P.L 96.457
175 teeth

72
144
80
52
56
112
60
90
64
68
72
56
56
60
64
68
72
80
112
144
90
60
168
80
72
144
68
64
60
112
64
80
72
90
144
68
64
112
168
68
80
90
72
144
192
68
168
72
80
90
112
72
144
168
90
80
192
80
144
112
168
90
192
80

2310-14MGT
P.L 90.945
165 teeth

7.018
14.036
7.720
4.912
5.263
10.527
5.614
8.421
5.965
6.316
6.667
5.088
4.912
5.263
5.614
5.965
6.316
7.018
9.825
12.632
7.720
5.088
14.036
6.667
5.965
11.930
5.614
5.263
4.912
9.123
5.088
6.316
5.614
7.018
11.229
5.263
4.912
8.421
12.632
5.088
5.965
6.667
5.263
10.527
14.036
4.912
11.930
5.088
5.614
6.316
7.720
4.912
9.825
11.229
5.965
5.263
12.632
5.088
9.123
7.018
10.527
5.614
11.930
4.912

2100-14MGT
P.L 82.677
150 teeth

40
80
44
28
30
60
32
48
34
36
38
29
28
30
32
34
36
40
56
72
44
29
80
38
34
68
32
30
28
52
29
36
32
40
64
30
28
48
72
29
34
38
30
60
80
28
68
29
32
36
44
28
56
64
34
30
72
29
52
40
60
32
68
28

1890-14MGT
P.L 74.409
135 teeth

Speed
Ratio

1778-14MGT
P.L 70.000
127 teeth

Pitch
Diameter
(Inches)

1610-14MGT
P.L 63.386
115 teeth

No.
of
Grooves

1400-14MGT
P.L 55.118
100 teeth

Pitch
Diameter
(Inches)

1190-14MGT
P.L 46.850
85 teeth

No.
of
Grooves

966-14MGT
P.L 38.031
69 teeth

Center Distance, Inches

11.79

16.02

19.36

21.59

25.75

29.91

32.68

35.44

12.22
11.34

16.40
15.54

14.26
20.56
19.71

17.63
23.88
23.04

19.87
26.10
25.25

10.46

14.68

18.86

9.56

13.80
12.92
12.03
15.67
15.79
14.93
14.05
13.17
12.27

18.00
17.13
16.26
19.84
19.97
19.11
18.25
17.38
16.51
14.74

22.19
15.55
21.33
20.48
19.62
23.17
23.30
22.44
21.59
20.73
19.87
18.12

24.40
17.81
23.55
22.70
21.84
25.38
25.51
24.66
23.81
22.96
22.10
20.37

24.05
30.24
29.40
17.02
28.56
22.02
27.71
26.86
26.01
29.53
29.66
28.82
27.97
27.12
26.27
24.55
17.50

28.21
34.38
33.54
21.28
32.70
26.20
31.86
31.01
30.17
33.67
33.81
32.96
32.12
31.27
30.42
28.72
21.76

30.98
37.15
36.31
24.10
35.47
28.98
34.63
33.78
32.94
36.44
36.57
35.73
34.89
34.04
33.20
31.50
24.59

15.05

12.58
19.24

16.02
22.57

18.29
24.79

22.51
28.95

26.70
33.09

29.49
35.86

33.75
39.91
39.07
26.90
38.23
31.76
37.39
36.55
35.70
39.20
39.33
38.49
37.65
36.81
35.96
34.27
27.39
20.23
32.27
38.63

12.51

14.98
16.76

18.37
20.12

20.61
22.35

24.81
26.52

28.98
30.68

31.76
33.46

13.41
14.29
15.17

17.63
18.50
19.37

20.98
21.84
22.70

23.21
24.07
24.92

10.14

14.42
10.88
12.74

18.63
15.22
17.00
13.04

21.97
18.61
20.37
16.50

24.19
20.86
22.60
18.78

27.38
28.23
29.08
17.97
28.36
25.06
26.78
23.01

31.53
32.38
33.23
22.25
32.51
29.23
30.94
27.20

34.31
35.15
35.99
25.08
35.28
32.01
33.72
30.00

9.32
10.26

13.65
14.54

17.88
18.75

21.23
22.10

23.46
24.32

27.64
28.49
18.43

31.79
32.64
22.73

34.57
35.41
25.56

34.53
36.23
20.69
37.07
37.91
38.76
27.89
38.05
34.79
36.49
32.78
21.15
37.33
38.18
28.38

9.43

13.77
11.11
12.98

18.00
15.46
13.27
17.25

21.36
18.86
16.74
20.62

23.59
21.11
19.02
22.85

27.76
25.31
23.25
27.03

31.92
29.48
27.45
31.20

34.70
32.27
30.25
33.98
18.64

37.46
35.04
33.03
36.75
21.61

13.89

18.13

21.49

23.72

27.89

32.05

34.83

37.59

13.10
11.34

17.37
15.69
13.49

20.74
19.10
16.97

13.21

17.49

20.86

22.98
21.36
19.26
14.46
23.10

27.16
25.56
23.50
18.89
27.29

31.33
29.74
27.70
23.20
31.45

34.10
32.52
30.50
26.05
34.23
19.09

36.87
35.30
33.29
28.87
37.00
22.06

11.56

13.72
15.93

17.21
19.34

19.50
21.60

23.74
25.81

27.95
29.99

30.75
32.78

33.54
35.56

11.67

16.05

19.46

21.72

25.93

30.12

14.90

19.36

23.68

32.91
19.53
26.53

35.68
22.51
29.36

11.47
11.59
10.70
9.79

10.82

10.03
10.94

9.54

0.80

0.80

13.95

17.44

19.73

23.99

28.20

31.00

33.79

11.78

16.17

19.58

21.85

26.06

30.24

33.03

35.81

0.90

0.90

0.95

0.95

1.00

1.00

1.00

1.05

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 40

R

The Gates Rubber Company

14mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN
5740-14MGT
P.L 225.984
410 teeth

6160-14MGT
P.L 242.520
440 teeth

6860-14MGT
P.L 270.079
490 teeth

82.08
66.46
80.41
86.51
85.68
73.72
84.85
78.46
84.01
83.18
82.35
85.81
85.95
85.12
84.28
83.45
82.62
80.95
74.25
67.50
78.99
85.25
62.91
81.22
82.89
68.02
83.72
84.55
85.39
74.78
84.69
81.48
83.16
79.53
68.54
83.99
84.82
75.30
63.93
84.12
81.75
79.79
83.42
69.06
59.26
84.26
64.44
83.56
82.02
80.06
75.83
83.69
69.57
64.95
80.32
82.29
60.26
82.42
70.09
76.35
65.46
80.59
60.76
82.55

89.25
73.64
87.58
93.68
92.85
80.90
92.02
85.63
91.18
90.35
89.52
92.98
93.12
92.29
91.45
90.62
89.79
88.12
81.43
74.69
86.17
92.42
70.13
88.39
90.06
75.22
90.89
91.72
92.56
81.96
91.86
88.66
90.33
86.70
75.74
91.16
91.99
82.49
71.16
91.29
88.92
86.97
90.60
76.26
66.52
91.43
71.67
90.73
89.19
87.23
83.01
90.86
76.78
72.18
87.50
89.46
67.52
89.59
77.30
83.54
72.69
87.77
68.03
89.73

97.52
81.93
95.85
101.95
101.11
89.17
100.28
93.90
99.45
98.62
97.79
101.25
101.39
100.55
99.72
98.89
98.06
96.39
89.71
82.99
94.44
100.69
78.44
96.66
98.33
83.51
99.16
99.99
100.83
90.24
100.13
96.93
98.60
94.98
84.04
99.43
100.26
90.77
79.47
99.57
97.20
95.24
98.87
84.56
74.86
99.70
79.99
99.00
97.47
95.51
91.30
99.14
85.08
80.50
95.78
97.73
75.88
97.87
85.60
91.83
81.02
96.04
76.39
98.00

105.79
90.22
104.12
110.22
109.39
97.45
108.56
102.18
107.72
106.89
106.06
109.52
109.66
108.83
108.00
107.16
106.33
104.67
97.99
91.28
102.72
108.96
86.74
104.94
106.60
91.81
107.43
108.27
109.10
98.52
108.40
105.20
106.87
103.25
92.33
107.71
108.54
99.05
87.78
107.84
105.47
103.52
107.14
92.86
83.20
107.98
88.30
107.28
105.74
103.79
99.58
107.41
93.38
88.82
104.06
106.01
84.22
106.15
93.91
100.12
89.34
104.33
84.73
106.28

119.57
104.02
117.91
124.00
123.17
111.25
122.34
115.97
121.51
120.68
119.85
123.30
123.44
122.61
121.78
120.95
120.12
118.45
111.78
105.09
116.51
122.75
100.57
118.72
120.39
105.62
121.22
122.05
122.88
112.32
122.19
118.99
120.66
117.04
106.15
121.49
122.32
112.85
101.62
121.63
119.26
117.31
120.93
106.68
97.06
121.76
102.14
121.06
119.53
117.58
113.39
121.20
107.20
102.67
117.85
119.80
98.10
119.94
107.73
113.92
103.19
118.12
98.61
120.07

1.800
1.800
1.818
1.857
1.867
1.867
1.875
1.875
1.882
1.889
1.895
1.931
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.045
2.069
2.100
2.105
2.118
2.118
2.125
2.133
2.143
2.154
2.207
2.222
2.250
2.250
2.250
2.267
2.286
2.333
2.333
2.345
2.353
2.368
2.400
2.400
2.400
2.429
2.471
2.483
2.500
2.500
2.545
2.571
2.571
2.625
2.647
2.667
2.667
2.759
2.769
2.800
2.800
2.813
2.824
2.857

1.05

1.05

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

41.03
39.46
37.46
33.08
41.16
26.43
21.15
37.71
39.72
39.85
26.89
33.58
21.59
37.97

5320-14MGT
P.L 209.449
380 teeth

74.63
58.99
72.96
79.07
78.24
66.26
77.40
71.01
76.57
75.74
74.90
78.37
78.51
77.67
76.84
76.01
75.17
73.50
66.79
60.02
71.54
77.81
55.41
73.77
75.44
60.54
76.28
77.11
77.94
67.32
77.24
74.03
75.71
72.07
61.05
76.54
77.38
67.84
56.42
76.68
74.30
72.34
75.98
61.57
51.70
76.81
56.92
76.11
74.57
72.60
68.36
76.24
62.08
57.42
72.87
74.83
52.69
74.97
62.59
68.89
57.93
73.13
53.18
75.10

48.66
28.11
47.94
46.39
44.40
40.07
48.08
33.56
28.57
44.65
46.65

4956-14MGT
P.L 195.118
354 teeth

69.67
54.00
67.99
74.10
73.27
61.28
72.44
66.04
71.60
70.77
69.93
73.40
73.54
72.71
71.87
71.04
70.20
68.53
61.81
55.03
66.57
72.84
50.39
68.80
70.47
55.54
71.31
72.14
72.98
62.33
72.27
69.06
70.74
67.10
56.05
71.57
72.41
62.86
51.39
71.71
69.33
67.36
71.00
56.56
46.64
71.84
51.89
71.14
69.59
67.63
63.38
71.27
57.07
52.39
67.89
69.86
47.61
69.99
57.58
63.90
52.89
68.15
48.09
70.12

41.74

4578-14MGT
P.L 180.236
327 teeth

60.29
44.56
58.61
64.73
63.89
51.88
63.06
56.65
62.23
61.39
60.55
64.03
64.16
63.33
62.49
61.66
60.82
59.15
52.40
45.58
57.18
63.46
40.88
59.41
61.09
46.09
61.93
62.76
63.60
52.92
62.89
59.68
61.35
57.70
46.59
62.19
63.03
53.44
41.86
62.33
59.94
57.97
61.62
47.10
36.99
62.46
42.35
61.75
60.20
58.23
53.96
61.89
47.60
42.84
58.49
60.47
37.94
60.60
48.10
54.47
43.33
58.75
38.41
60.73

41.61
39.20
37.20
40.90
25.96

4326-14MGT
P.L 170.315
309 teeth

53.39
37.61
51.72
57.84
57.00
44.97
56.17
49.75
55.33
54.50
53.66
57.14
57.27
56.44
55.60
54.76
53.93
52.25
45.48
38.62
50.27
56.57
33.84
52.51
54.19
39.12
55.03
55.87
56.70
46.00
56.00
52.77
54.46
50.80
39.62
55.30
56.13
46.51
34.81
55.43
53.04
51.06
54.72
40.11
29.78
55.56
35.28
54.85
53.30
51.32
47.02
54.99
40.61
35.76
51.58
53.56
30.70
53.69
41.10
47.53
36.24
51.84
31.15
53.82

38.68
40.38
25.01
41.22
42.06
42.90
32.09
42.19
38.94
40.64
36.95
25.49
41.48
42.32
32.59

3850-14MGT
P.L 151.575
275 teeth

39.98

46.78
34.04
40.57
29.03
44.91
23.63
46.91

50.63
34.82
48.95
55.08
54.24
42.19
53.41
46.98
52.57
51.73
50.90
54.38
54.51
53.67
52.84
52.00
51.16
49.48
42.71
35.82
47.50
53.81
31.00
49.74
51.43
36.31
52.27
53.10
53.94
43.22
53.24
50.01
51.69
48.03
36.81
52.53
53.37
43.73
31.95
52.66
50.27
48.29
51.95
37.30
26.84
52.80
32.43
52.09
50.53
48.55
44.24
52.22
37.79
32.90
48.81
50.79
27.74
50.92
38.28
44.75
33.37
49.07
28.19
51.05

46.49
30.63
44.81
50.94
50.11
38.04
49.27
42.84
48.43
47.60
46.76
50.24
50.38
49.54
48.70
47.86
47.02
45.34
38.55
31.61
43.36
49.67
26.71
45.60
47.29
32.10
48.13
48.97
49.81
39.06
49.10
45.86
47.55
43.88
32.59
48.39
49.23
39.56
27.65
48.52
46.12
44.14
47.81
33.08

3500-14MGT
P.L 137.795
250 teeth

Speed
Ratio

39.59
23.58
37.90
44.05
43.21
31.08
42.37
35.92
41.53
40.69
39.85
43.34
43.48
42.64
41.80
40.96
40.11
38.42
31.59
24.54
36.43
42.77

3360-14MGT
P.L 132.283
240 teeth

3150-14MGT
P.L 124.016
225 teeth

2800-14MGT
P.L 110.236
200 teeth

Center Distance, Inches

No. of
grooves

No. of
grooves

40
80
44
28
30
60
32
48
34
36
38
29
28
30
32
34
36
40
56
72
44
29
80
38
34
68
32
30
28
52
29
36
32
40
64
30
28
48
72
29
34
38
30
60
80
28
68
29
32
36
44
28
56
64
34
30
72
29
52
40
60
32
68
28

72
144
80
52
56
112
60
90
64
68
72
56
56
60
64
68
72
80
112
144
90
60
168
80
72
144
68
64
60
112
64
80
72
90
144
68
64
112
168
68
80
90
72
144
192
68
168
72
80
90
112
72
144
168
90
80
192
80
144
112
168
90
192
80

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.
R

The Driving Force in Power Transmission.

Page 41

14mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table

Sprocket Combinations
DriveR
DriveN

2.947
3.000
3.000
3.000
3.000
3.103
3.111
3.200
3.214
3.231
3.273
3.294
3.429
3.500
3.500
3.600
3.692
3.733
3.789
3.818
3.862
4.000
4.000
4.000
4.200
4.235
4.364
4.421
4.500
4.667
4.800
4.800
4.941
4.966
5.053
5.143
5.250
5.333
5.600
5.647
5.793
6.000
6.000
6.400
6.621
6.857

Length Factor*

2590-14MGT
P.L 101.968
185 teeth

19.650
15.790
25.264
29.475
33.686
15.790
19.650
33.686
15.790
29.475
25.264
19.650
33.686
19.650
29.475
25.264
33.686
19.650
25.264
29.475
19.650
19.650
25.264
33.686
29.475
25.264
33.686
29.475
25.264
29.475
25.264
33.686
29.475
25.264
33.686
25.264
29.475
33.686
29.475
33.686
29.475
29.475
33.686
33.686
33.686
33.686

2450-14MGT
P.L 96.457
175 teeth

112
90
144
168
192
90
112
192
90
168
144
112
192
112
168
144
192
112
144
168
112
112
144
192
168
144
192
168
144
168
144
192
168
144
192
144
168
192
168
192
168
168
192
192
192
192

2310-14MGT
P.L 90.945
165 teeth

6.667
5.263
8.421
9.825
11.229
5.088
6.316
10.527
4.912
9.123
7.720
5.965
9.825
5.614
8.421
7.018
9.123
5.263
6.667
7.720
5.088
4.912
6.316
8.421
7.018
5.965
7.720
6.667
5.614
6.316
5.263
7.018
5.965
5.088
6.667
4.912
5.614
6.316
5.263
5.965
5.088
4.912
5.614
5.263
5.088
4.912

2100-14MGT
P.L 82.677
150 teeth

38
30
48
56
64
29
36
60
28
52
44
34
56
32
48
40
52
30
38
44
29
28
36
48
40
34
44
38
32
36
30
40
34
29
38
28
32
36
30
34
29
28
32
30
29
28

1890-14MGT
P.L 74.409
135 teeth

Speed
Ratio

1778-14MGT
P.L 70.000
127 teeth

Pitch
Diameter
(Inches)

1610-14MGT
P.L 63.386
115 teeth

No.
of
Grooves

1400-14MGT
P.L 55.118
100 teeth

Pitch
Diameter
(Inches)

1190-14MGT
P.L 46.850
85 teeth

No.
of
Grooves

966-14MGT
P.L 38.031
69 teeth

Center Distance, Inches

15.12
19.97

19.58
24.23

23.91
28.45

26.77
31.25
19.97

29.60
34.04
22.97

17.79

20.09
15.34

24.35
19.81

28.57
24.15

31.38
27.01

34.17
29.84

17.91

20.21

24.47

28.69

31.50

34.29

15.56

20.04

17.29
24.39

20.41
27.25

23.42
30.09

15.77

20.27

24.62

27.49

30.33

17.71

20.85

23.86

14.17

17.68

14.28

14.40

13.25

13.46

15.99

20.50

24.85
17.92

27.72
21.06

30.57
24.09

13.57
13.67

16.10
16.21

20.61
20.72

24.97
25.09
18.13

27.84
27.96
21.28

30.69
30.81
24.31

18.34

21.50

18.87
24.53

18.55

21.72

18.76

21.93

19.08
24.76
19.28
24.98

18.86

22.04

19.48
25.09

18.97

22.15

25.20
19.69
19.89
19.99
20.09

0.80

0.80

0.90

0.90

0.95

0.95

1.00

1.00

1.00

1.05

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

Page 42

R

The Gates Rubber Company

14mm Pitch PowerGrip® GT®2 Belts

Drive Selection Table
Sprocket Combinations
DriveR
DriveN

38.48
22.46
27.82
34.32
34.56
22.89
28.28
34.81
28.51
23.32
34.93
35.05
28.74
23.75
28.97
23.97
29.20
24.18
29.43
24.39
29.54
29.66
24.61
24.82
24.93
25.03

1.05

5740-14MGT
P.L 225.984
410 teeth

5320-14MGT
P.L 209.449
380 teeth

4956-14MGT
P.L 195.118
354 teeth

4578-14MGT
P.L 180.236
327 teeth

4326-14MGT
P.L 170.315
309 teeth

3850-14MGT
P.L 151.575
275 teeth

3500-14MGT
P.L 137.795
250 teeth

6860-14MGT
P.L 270.079
490 teeth

38.35
34.07

6160-14MGT
P.L 242.520
440 teeth

33.83
38.22
27.36
22.02

3360-14MGT
P.L 132.283
240 teeth

3150-14MGT
P.L 124.016
225 teeth

2800-14MGT
P.L 110.236
200 teeth

Center Distance, Inches
Speed
Ratio

40.82
45.17
34.52
29.49
24.06
45.30
41.07
24.49
45.42
29.95
35.00
41.32
24.92
41.57
30.41
35.48
25.35
41.82
35.71
30.86
41.95
42.07
35.95
25.78
31.31
36.19
26.20
31.54
36.43
31.76
36.66
26.63
31.99
36.78
26.84
36.90
32.22
27.05
32.44
27.26
32.55
32.67
27.47
27.68
27.79
27.90

45.00
49.32
38.77
33.84
28.63
49.45
45.25
29.08
49.58
34.30
39.25
45.51
29.52
45.76
34.77
39.73
29.96
46.01
39.98
35.23
46.14
46.26
40.22
30.41
35.70
40.46
30.84
35.93
40.70
36.16
40.94
31.28
36.39
41.06
31.50
41.18
36.62
31.72
36.85
31.94
36.96
37.08
32.16
32.38
32.49
32.60

47.79
52.10
41.59
36.71
31.61
52.23
48.04
32.06
52.36
37.18
42.08
48.30
32.51
48.55
37.66
42.56
32.96
48.80
42.81
38.12
48.93
49.05
43.05
33.41
38.59
43.29
33.86
38.83
43.54
39.06
43.78
34.31
39.29
43.90
34.53
44.02
39.53
34.75
39.76
34.97
39.87
39.99
35.20
35.42
35.53
35.64

54.73
59.02
48.60
43.81
38.88
59.15
54.99
39.34
59.28
44.30
49.09
55.24
39.81
55.50
44.78
49.59
40.28
55.75
49.84
45.26
55.88
56.01
50.08
40.74
45.74
50.33
41.20
45.98
50.58
46.22
50.82
41.66
46.46
50.94
41.89
51.07
46.69
42.12
46.93
42.35
47.05
47.17
42.58
42.81
42.93
43.04

64.16
68.42
58.09
53.38
48.58
68.55
64.42
49.06
68.68
53.88
58.59
64.67
49.54
64.93
54.37
59.10
50.02
65.19
59.35
54.86
65.32
65.45
59.60
50.50
55.35
59.85
50.97
55.60
60.10
55.84
60.35
51.45
56.08
60.47
51.69
60.60
56.33
51.92
56.57
52.16
56.69
56.81
52.40
52.63
52.75
52.87

69.15
73.40
63.10
58.43
53.66
73.53
69.41
54.15
73.66
58.92
63.61
69.67
54.64
69.93
59.42
64.12
55.12
70.18
64.37
59.92
70.31
70.44
64.62
55.61
60.41
64.87
56.09
60.66
65.13
60.91
65.38
56.57
61.15
65.50
56.81
65.63
61.40
57.05
61.64
57.29
61.77
61.89
57.53
57.77
57.89
58.01

76.62
80.85
70.60
65.96
61.25
80.99
76.88
61.75
81.12
66.46
71.11
77.14
62.24
77.40
66.97
71.62
62.73
77.66
71.88
67.47
77.79
77.92
72.13
63.22
67.97
72.39
63.71
68.22
72.64
68.47
72.90
64.20
68.72
73.02
64.45
73.15
68.97
64.69
69.22
64.93
69.34
69.46
65.18
65.42
65.54
65.66

83.80
88.03
77.81
73.20
68.53
88.17
84.07
69.03
88.30
73.71
78.33
84.33
69.53
84.59
74.21
78.84
70.02
84.85
79.10
74.72
84.98
85.11
79.36
70.52
75.22
79.61
71.01
75.48
79.87
75.73
80.12
71.51
75.98
80.25
71.76
80.38
76.23
72.00
76.48
72.25
76.61
76.73
72.50
72.74
72.86
72.99

92.09
96.31
86.12
81.53
76.89
96.44
92.36
77.40
96.58
82.04
86.64
92.62
77.90
92.88
82.55
87.16
78.40
93.15
87.42
83.06
93.28
93.41
87.67
78.91
83.57
87.93
79.41
83.83
88.19
84.08
88.45
79.91
84.33
88.58
80.16
88.71
84.59
80.41
84.84
80.65
84.97
85.09
80.90
81.15
81.28
81.40

100.38
104.59
94.43
89.86
85.24
104.73
100.65
85.75
104.86
90.37
94.95
100.91
86.26
101.17
90.89
95.47
86.77
101.44
95.73
91.40
101.57
101.70
95.99
87.27
91.91
96.25
87.78
92.17
96.51
92.42
96.77
88.28
92.68
96.90
88.53
97.03
92.93
88.79
93.19
89.04
93.32
93.44
89.29
89.54
89.66
89.79

114.19
118.39
108.26
103.71
99.13
118.52
114.45
99.64
118.66
104.23
108.78
114.72
100.16
114.98
104.75
109.30
100.67
115.25
109.57
105.26
115.38
115.51
109.83
101.18
105.78
110.09
101.69
106.04
110.35
106.30
110.61
102.20
106.56
110.74
102.45
110.87
106.81
102.71
107.07
102.96
107.20
107.33
103.22
103.47
103.60
103.73

2.947
3.000
3.000
3.000
3.000
3.103
3.111
3.200
3.214
3.231
3.273
3.294
3.429
3.500
3.500
3.600
3.692
3.733
3.789
3.818
3.862
4.000
4.000
4.000
4.200
4.235
4.364
4.421
4.500
4.667
4.800
4.800
4.941
4.966
5.053
5.143
5.250
5.333
5.600
5.647
5.793
6.000
6.000
6.400
6.621
6.857

1.05

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

1.10

No. of
grooves

No. of
grooves

38
30
48
56
64
29
36
60
28
52
44
34
56
32
48
40
52
30
38
44
29
28
36
48
40
34
44
38
32
36
30
40
34
29
38
28
32
36
30
34
29
28
32
30
29
28

112
90
144
168
192
90
112
192
90
168
144
112
192
112
168
144
192
112
144
168
112
112
144
192
168
144
192
168
144
168
144
192
168
144
192
144
168
192
168
192
168
168
192
192
192
192

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged
Sprockets, on page 134.

R

The Driving Force in Power Transmission.

Page 43

®

®

5M PowerGrip GT 2 Power Rating Table — 9mm Belt Width
RPM
of
Faster
Shaft
10
20
40
60
100
200
300
400
500
600
800
1000
1200
1400
1600
1800
2000
2400
2800
3200
3600
4000
5000
6000
8000
10000
12000
14000

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
18
1.128
0.01
0.01
0.03
0.04
0.06
0.10
0.14
0.18
0.22
0.25
0.31
0.37
0.43
0.49
0.54
0.59
0.64
0.73
0.81
0.89
0.97
1.04
1.20
1.34
1.56
1.69
1.75
1.72

19
1.191
0.01
0.02
0.03
0.04
0.06
0.11
0.16
0.20
0.24
0.28
0.36
0.43
0.49
0.56
0.62
0.68
0.74
0.85
0.95
1.05
1.14
1.23
1.43
1.60
1.89
2.08
2.19
2.20

20
1.253
0.01
0.02
0.03
0.04
0.07
0.12
0.18
0.22
0.27
0.32
0.40
0.48
0.56
0.63
0.70
0.77
0.83
0.96
1.08
1.19
1.30
1.41
1.65
1.86
2.21
2.46
2.61
2.65

21
1.316
0.01
0.02
0.03
0.05
0.07
0.14
0.19
0.25
0.30
0.35
0.44
0.53
0.62
0.70
0.78
0.86
0.93
1.08
1.21
1.34
1.47
1.59
1.87
2.12
2.54
2.84
3.04
3.10

22
1.379
0.01
0.02
0.04
0.05
0.08
0.15
0.21
0.27
0.33
0.38
0.49
0.58
0.68
0.77
0.86
0.95
1.03
1.19
1.35
1.49
1.64
1.77
2.09
2.37
2.86
3.22
3.45
3.54

23
1.441
0.01
0.02
0.04
0.06
0.09
0.16
0.23
0.29
0.35
0.41
0.53
0.64
0.74
0.84
0.94
1.03
1.13
1.31
1.48
1.64
1.80
1.95
2.30
2.62
3.17
3.58
3.84
3.95

24
1.504
0.01
0.02
0.04
0.06
0.09
0.17
0.25
0.31
0.38
0.45
0.57
0.69
0.80
0.91
1.02
1.12
1.23
1.42
1.61
1.79
1.96
2.13
2.52
2.88
3.48
3.94
4.23
4.36

25
1.566
0.01
0.02
0.04
0.06
0.10
0.18
0.26
0.34
0.41
0.48
0.61
0.74
0.86
0.98
1.10
1.21
1.32
1.53
1.74
1.93
2.12
2.31
2.73
3.12
3.78
4.28
4.61
4.74

26
1.629
0.01
0.02
0.05
0.07
0.11
0.20
0.28
0.36
0.44
0.51
0.65
0.79
0.92
1.05
1.18
1.30
1.42
1.65
1.87
2.08
2.29
2.48
2.95
3.37
4.09
4.63
4.98
5.11

28
1.754
0.01
0.03
0.05
0.07
0.12
0.22
0.31
0.40
0.49
0.57
0.74
0.89
1.04
1.19
1.33
1.47
1.61
1.87
2.13
2.37
2.61
2.83
3.37
3.85
4.68
5.29
5.67
5.79

30
1.880
0.02
0.03
0.06
0.08
0.13
0.24
0.35
0.45
0.54
0.64
0.82
1.00
1.16
1.33
1.49
1.65
1.80
2.10
2.38
2.66
2.92
3.18
3.78
4.33
5.26
5.93
6.33

32
2.005
0.02
0.03
0.06
0.09
0.14
0.27
0.38
0.49
0.60
0.70
0.90
1.10
1.28
1.47
1.64
1.82
1.99
2.32
2.63
2.94
3.24
3.52
4.19
4.80
5.81
6.54
6.93

34
2.130
0.02
0.04
0.07
0.10
0.15
0.29
0.41
0.53
0.65
0.76
0.98
1.20
1.40
1.60
1.80
1.99
2.17
2.54
2.89
3.22
3.55
3.86
4.59
5.26
6.35
7.11

36
2.256
0.02
0.04
0.07
0.11
0.17
0.31
0.45
0.58
0.70
0.83
1.07
1.30
1.52
1.74
1.95
2.16
2.36
2.75
3.14
3.50
3.86
4.20
4.99
5.71
6.88
7.65

38
2.381
0.02
0.04
0.08
0.11
0.18
0.33
0.48
0.62
0.76
0.89
1.15
1.40
1.64
1.87
2.10
2.32
2.54
2.97
3.38
3.78
4.16
4.53
5.38
6.15
7.38
8.15

40
2.506
0.02
0.04
0.08
0.12
0.19
0.36
0.51
0.66
0.81
0.95
1.23
1.49
1.75
2.00
2.25
2.49
2.73
3.18
3.63
4.05
4.46
4.85
5.77
6.58
7.86
8.62

44
2.757
0.03
0.05
0.09
0.13
0.21
0.40
0.58
0.75
0.91
1.08
1.39
1.69
1.98
2.27
2.55
2.82
3.09
3.61
4.11
4.59
5.05
5.49
6.51
7.41
8.76

45
2.820
0.03
0.05
0.10
0.14
0.22
0.41
0.60
0.77
0.94
1.11
1.43
1.74
2.04
2.34
2.62
2.91
3.18
3.72
4.23
4.72
5.20
5.65
6.70
7.61
8.97

48
3.008
0.03
0.05
0.10
0.15
0.24
0.45
0.64
0.83
1.02
1.20
1.55
1.89
2.21
2.53
2.85
3.15
3.45
4.03
4.59
5.12
5.63
6.12
7.24
8.20
9.57

50
3.133
0.03
0.06
0.11
0.16
0.25
0.47
0.68
0.88
1.07
1.26
1.63
1.98
2.33
2.66
2.99
3.31
3.63
4.24
4.82
5.38
5.92
6.43
7.59
8.57
9.94

52
3.258
0.03
0.06
0.11
0.16
0.26
0.49
0.71
0.92
1.12
1.32
1.70
2.08
2.44
2.79
3.14
3.47
3.80
4.44
5.05
5.64
6.20
6.73
7.93
8.94

56
3.509
0.03
0.07
0.12
0.18
0.29
0.54
0.77
1.00
1.22
1.44
1.86
2.27
2.66
3.05
3.43
3.80
4.15
4.85
5.52
6.15
6.75
7.32
8.60
9.64

60
3.760
0.04
0.07
0.13
0.19
0.31
0.58
0.84
1.08
1.33
1.56
2.02
2.46
2.89
3.31
3.71
4.11
4.50
5.25
5.97
6.65
7.29
7.90
9.23
10.3

64
4.010
0.04
0.08
0.14
0.21
0.33
0.62
0.90
1.17
1.43
1.68
2.17
2.65
3.11
3.56
4.00
4.43
4.84
5.65
6.41
7.14
7.82
8.45
9.84
10.9

68
4.261
0.04
0.08
0.15
0.22
0.35
0.67
0.96
1.25
1.53
1.80
2.32
2.83
3.33
3.81
4.28
4.74
5.18
6.04
6.85
7.61
8.33
8.99
10.4

64
4.010
0.07
0.13
0.24
0.35
0.55
1.04
1.50
1.94
2.38
2.80
3.62
4.41
5.18
5.93
6.66
7.38
8.07
9.41
10.7
11.9
13.0
14.1
16.4
18.1

68
4.261
0.07
0.13
0.25
0.37
0.59
1.11
1.60
2.08
2.54
3.00
3.87
4.72
5.55
6.35
7.13
7.89
8.64
10.1
11.4
12.7
13.9
15.0
17.4

5M PowerGrip GT2 Power Rating Table — 15mm Belt Width
RPM
of
Faster
Shaft
10
20
40
60
100
200
300
400
500
600
800
1000
1200
1400
1600
1800
2000
2400
2800
3200
3600
4000
5000
6000
8000
10000
12000
14000

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
18
1.128
0.01
0.02
0.04
0.06
0.09
0.17
0.24
0.30
0.36
0.42
0.52
0.62
0.72
0.81
0.90
0.98
1.06
1.21
1.35
1.49
1.61
1.73
2.00
2.23
2.59
2.82
2.91
2.86

19
1.191
0.01
0.03
0.05
0.07
0.10
0.19
0.26
0.34
0.41
0.47
0.60
0.71
0.82
0.93
1.03
1.13
1.23
1.41
1.58
1.74
1.90
2.04
2.38
2.67
3.15
3.47
3.65
3.66

20
1.253
0.01
0.03
0.05
0.07
0.11
0.21
0.29
0.37
0.45
0.53
0.67
0.80
0.93
1.05
1.17
1.28
1.39
1.60
1.80
1.99
2.17
2.34
2.74
3.10
3.69
4.11
4.36
4.42

21
1.316
0.02
0.03
0.06
0.08
0.12
0.23
0.32
0.41
0.50
0.58
0.74
0.89
1.03
1.17
1.30
1.43
1.55
1.79
2.02
2.24
2.45
2.65
3.11
3.53
4.23
4.74
5.06
5.17

22
1.379
0.02
0.03
0.06
0.09
0.14
0.25
0.35
0.45
0.54
0.64
0.81
0.97
1.13
1.29
1.43
1.58
1.72
1.99
2.24
2.49
2.73
2.95
3.48
3.96
4.76
5.36
5.75
5.90

23
1.441
0.02
0.03
0.06
0.09
0.15
0.27
0.38
0.49
0.59
0.69
0.88
1.06
1.23
1.40
1.57
1.72
1.88
2.18
2.46
2.74
3.00
3.25
3.84
4.37
5.28
5.96
6.41
6.59

24
1.504
0.02
0.04
0.07
0.10
0.16
0.29
0.41
0.52
0.64
0.74
0.95
1.15
1.34
1.52
1.70
1.87
2.04
2.37
2.68
2.98
3.27
3.55
4.20
4.79
5.80
6.56
7.06
7.26

25
1.566
0.02
0.04
0.07
0.11
0.17
0.31
0.44
0.56
0.68
0.80
1.02
1.23
1.44
1.64
1.83
2.02
2.20
2.56
2.90
3.22
3.54
3.84
4.56
5.20
6.31
7.14
7.68
7.90

26
1.629
0.02
0.04
0.08
0.11
0.18
0.33
0.47
0.60
0.73
0.85
1.09
1.32
1.54
1.75
1.96
2.16
2.36
2.75
3.11
3.47
3.81
4.14
4.91
5.62
6.81
7.72
8.30
8.52

28
1.754
0.02
0.05
0.09
0.12
0.20
0.36
0.52
0.67
0.82
0.96
1.23
1.49
1.74
1.98
2.22
2.45
2.68
3.12
3.54
3.95
4.34
4.72
5.61
6.42
7.80
8.82
9.46
9.65

30
1.880
0.03
0.05
0.10
0.14
0.22
0.40
0.58
0.75
0.91
1.06
1.37
1.66
1.94
2.21
2.48
2.74
3.00
3.49
3.97
4.43
4.87
5.30
6.31
7.22
8.76
9.89
10.5

32
2.005
0.03
0.06
0.10
0.15
0.24
0.44
0.63
0.82
1.00
1.17
1.50
1.83
2.14
2.44
2.74
3.03
3.31
3.86
4.39
4.90
5.40
5.87
6.99
8.00
9.69
10.9
11.5

34
2.130
0.03
0.06
0.11
0.16
0.26
0.48
0.69
0.89
1.09
1.27
1.64
1.99
2.34
2.67
2.99
3.31
3.62
4.23
4.81
5.37
5.91
6.43
7.66
8.76
10.6
11.8

36
2.256
0.03
0.06
0.12
0.18
0.28
0.52
0.75
0.96
1.17
1.38
1.78
2.16
2.53
2.90
3.25
3.59
3.93
4.59
5.23
5.84
6.43
6.99
8.32
9.51
11.5
12.7

38
2.381
0.04
0.07
0.13
0.19
0.30
0.56
0.80
1.04
1.26
1.48
1.91
2.33
2.73
3.12
3.50
3.87
4.24
4.95
5.64
6.30
6.93
7.54
8.97
10.2
12.3
13.6

40
2.506
0.04
0.07
0.14
0.20
0.32
0.59
0.86
1.11
1.35
1.59
2.05
2.49
2.92
3.34
3.75
4.15
4.55
5.31
6.04
6.75
7.43
8.09
9.61
11.0
13.1
14.4

44
2.757
0.04
0.08
0.16
0.22
0.36
0.67
0.96
1.25
1.52
1.79
2.31
2.82
3.31
3.78
4.25
4.71
5.15
6.02
6.85
7.65
8.42
9.16
10.9
12.3
14.6

45
2.820
0.04
0.08
0.16
0.23
0.37
0.69
0.99
1.28
1.57
1.84
2.38
2.90
3.40
3.89
4.37
4.84
5.30
6.19
7.05
7.87
8.66
9.42
11.2
12.7
14.9

48
3.008
0.05
0.09
0.17
0.25
0.40
0.74
1.07
1.39
1.70
2.00
2.58
3.14
3.69
4.22
4.74
5.25
5.75
6.72
7.64
8.53
9.39
10.2
12.1
13.7
15.9

50
3.133
0.05
0.10
0.18
0.26
0.42
0.78
1.13
1.46
1.78
2.10
2.71
3.30
3.88
4.44
4.99
5.52
6.05
7.06
8.04
8.97
9.86
10.7
12.6
14.3
16.6

52
3.258
0.05
0.10
0.19
0.27
0.44
0.82
1.18
1.53
1.87
2.20
2.84
3.46
4.07
4.65
5.23
5.79
6.34
7.40
8.42
9.40
10.3
11.2
13.2
14.9

Shaded area indicates drive conditions where reduced service life can be expected.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

Page 44

R

The Gates Rubber Company

56
3.509
0.06
0.11
0.21
0.30
0.48
0.89
1.29
1.67
2.04
2.40
3.10
3.78
4.44
5.08
5.71
6.32
6.92
8.08
9.19
10.2
11.3
12.2
14.3
16.1

60
3.760
0.06
0.12
0.22
0.32
0.51
0.97
1.39
1.81
2.21
2.60
3.36
4.10
4.81
5.51
6.19
6.85
7.50
8.75
9.95
11.1
12.2
13.2
15.4
17.1

®

®

5M PowerGrip GT 2 Power Rating Table — 25mm Belt Width
RPM
of
Faster
Shaft
10
20
40
60
100
200
300
400
500
600
800
1000
1200
1400
1600
1800
2000
2400
2800
3200
3600
4000
5000
6000
8000
10000
12000
14000

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
18
1.128
0.02
0.04
0.07
0.10
0.16
0.28
0.39
0.50
0.60
0.69
0.87
1.04
1.20
1.35
1.49
1.63
1.77
2.02
2.26
2.48
2.69
2.89
3.34
3.72
4.32
4.70
4.85
4.77

19
1.191
0.02
0.04
0.08
0.11
0.17
0.31
0.44
0.56
0.68
0.79
0.99
1.19
1.37
1.55
1.72
1.89
2.04
2.35
2.63
2.90
3.16
3.40
3.96
4.45
5.24
5.79
6.08
6.10

20
1.253
0.02
0.05
0.09
0.12
0.19
0.35
0.49
0.62
0.75
0.88
1.11
1.33
1.54
1.75
1.94
2.13
2.32
2.67
3.00
3.32
3.62
3.91
4.57
5.17
6.14
6.85
7.26
7.37

21
1.316
0.03
0.05
0.09
0.13
0.21
0.38
0.54
0.69
0.83
0.97
1.23
1.48
1.72
1.95
2.17
2.38
2.59
2.99
3.37
3.74
4.08
4.42
5.19
5.88
7.04
7.90
8.44
8.63

22
1.379
0.03
0.05
0.10
0.14
0.23
0.41
0.59
0.75
0.91
1.06
1.35
1.62
1.89
2.14
2.39
2.63
2.86
3.31
3.74
4.15
4.54
4.92
5.80
6.60
7.93
8.94
9.58
9.84

23
1.441
0.03
0.06
0.11
0.15
0.24
0.45
0.63
0.81
0.98
1.15
1.47
1.77
2.06
2.34
2.61
2.87
3.13
3.63
4.10
4.56
5.00
5.42
6.40
7.29
8.80
9.94
10.7
11.0

24
1.504
0.03
0.06
0.11
0.17
0.26
0.48
0.68
0.87
1.06
1.24
1.58
1.91
2.23
2.53
2.83
3.12
3.40
3.95
4.47
4.97
5.45
5.92
7.00
7.99
9.67
10.9
11.8
12.1

25
1.566
0.03
0.07
0.12
0.18
0.28
0.51
0.73
0.94
1.13
1.33
1.70
2.05
2.40
2.73
3.05
3.36
3.67
4.26
4.83
5.37
5.90
6.41
7.59
8.67
10.5
11.9
12.8
13.2

26
1.629
0.04
0.07
0.13
0.19
0.29
0.54
0.78
1.00
1.21
1.42
1.82
2.20
2.57
2.92
3.27
3.61
3.94
4.58
5.19
5.78
6.35
6.90
8.19
9.36
11.4
12.9
13.8
14.2

28
1.754
0.04
0.08
0.14
0.21
0.33
0.61
0.87
1.12
1.36
1.60
2.05
2.48
2.90
3.31
3.70
4.09
4.47
5.20
5.90
6.58
7.24
7.87
9.35
10.7
13.0
14.7
15.8
16.1

30
1.880
0.04
0.08
0.16
0.23
0.36
0.67
0.96
1.24
1.51
1.77
2.28
2.76
3.23
3.69
4.14
4.57
5.00
5.82
6.62
7.38
8.12
8.84
10.5
12.0
14.6
16.5
17.6

32
2.005
0.05
0.09
0.17
0.25
0.40
0.74
1.06
1.36
1.66
1.95
2.51
3.04
3.56
4.07
4.56
5.05
5.52
6.44
7.32
8.17
8.99
9.79
11.6
13.3
16.1
18.2
19.2

34
2.130
0.05
0.10
0.19
0.27
0.43
0.80
1.15
1.48
1.81
2.12
2.73
3.32
3.89
4.45
4.99
5.52
6.04
7.04
8.01
8.95
9.85
10.7
12.8
14.6
17.6
19.7

36
2.256
0.06
0.11
0.20
0.29
0.46
0.86
1.24
1.61
1.96
2.30
2.96
3.60
4.22
4.83
5.41
5.99
6.56
7.65
8.71
9.73
10.7
11.7
13.9
15.9
19.1
21.2

38
2.381
0.06
0.11
0.22
0.31
0.50
0.93
1.33
1.73
2.10
2.47
3.19
3.88
4.55
5.20
5.83
6.46
7.07
8.25
9.39
10.5
11.6
12.6
15.0
17.1
20.5
22.6

40
2.506
0.06
0.12
0.23
0.33
0.53
0.99
1.43
1.84
2.25
2.64
3.41
4.15
4.87
5.57
6.25
6.92
7.58
8.85
10.1
11.3
12.4
13.5
16.0
18.3
21.8
23.9

44
2.757
0.07
0.14
0.26
0.37
0.60
1.12
1.61
2.08
2.54
2.99
3.86
4.70
5.51
6.31
7.08
7.84
8.59
10.0
11.4
12.8
14.0
15.3
18.1
20.6
24.3

45
2.820
0.07
0.14
0.27
0.38
0.61
1.15
1.65
2.14
2.61
3.07
3.97
4.83
5.67
6.49
7.29
8.07
8.84
10.3
11.8
13.1
14.4
15.7
18.6
21.1
24.9

48
3.008
0.08
0.15
0.29
0.42
0.66
1.24
1.79
2.32
2.83
3.33
4.30
5.24
6.15
7.04
7.90
8.75
9.58
11.2
12.7
14.2
15.6
17.0
20.1
22.8
26.6

50
3.133
0.08
0.16
0.30
0.44
0.69
1.30
1.88
2.43
2.97
3.50
4.52
5.50
6.46
7.40
8.31
9.20
10.1
11.8
13.4
14.9
16.4
17.9
21.1
23.8
27.6

52
3.258
0.09
0.17
0.31
0.46
0.73
1.36
1.97
2.55
3.11
3.67
4.74
5.77
6.78
7.76
8.71
9.65
10.6
12.3
14.0
15.7
17.2
18.7
22.0
24.8

56
3.509
0.10
0.18
0.34
0.50
0.79
1.49
2.15
2.78
3.40
4.00
5.17
6.30
7.40
8.47
9.52
10.5
11.5
13.5
15.3
17.1
18.8
20.3
23.9
26.8

60
3.760
0.10
0.20
0.37
0.54
0.86
1.61
2.32
3.01
3.68
4.33
5.60
6.83
8.02
9.18
10.3
11.4
12.5
14.6
16.6
18.5
20.3
21.9
25.7
28.6

64
4.010
0.11
0.21
0.40
0.58
0.92
1.73
2.50
3.24
3.96
4.66
6.03
7.35
8.64
9.89
11.1
12.3
13.5
15.7
17.8
19.8
21.7
23.5
27.3
30.2

68
4.261
0.12
0.22
0.42
0.62
0.98
1.85
2.67
3.47
4.24
4.99
6.46
7.87
9.25
10.6
11.9
13.2
14.4
16.8
19.0
21.2
23.1
25.0
28.9

Shaded area indicates drive conditions where reduced service life can be expected.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

5M PowerGrip GT2 Belt Length Correction Factor Table
Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

5MR-300
5MR-355
5MR-375
5MR-400
5MR-405
5MR-425
5MR-450

60
71
75
80
81
85
90

0.77
0.81
0.83
0.84
0.85
0.86
0.88

5MR-500
5MR-535
5MR-565
5MR-580
5MR-600
5MR-625
5MR-650

100
107
113
116
120
125
130

0.90
0.92
0.94
0.95
0.95
0.97
0.98

5MR-700
5MR-750
5MR-800
5MR-850
5MR-900
5MR-1000
5MR-1150

140
150
160
170
180
200
230

1.00
1.01
1.03
1.05
1.06
1.09
1.13

5MR-1300
5MR-1450
5MR-1600
5MR-1720
5MR-2100

260
290
320
344
420

1.16
1.19
1.22
1.24
1.29

R

The Driving Force in Power Transmission.

Page 45

®

®

8M PowerGrip GT 2 Power Rating Table — 20mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
700
800
870
1000
1160
1200
1400
1600
1750
2000
2400
2800
3200
3450
4000
4500
5000
5500

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
22
2.206
0.07
0.12
0.24
0.35
0.55
1.04
1.51
1.96
2.40
2.83
3.26
3.68
3.96
4.49
5.13
5.29
6.07
6.84
7.41
8.35
9.81
11.2
12.6
13.5
15.3
16.9
18.5
20.0

24
2.406
0.07
0.14
0.27
0.40
0.63
1.20
1.74
2.27
2.78
3.28
3.78
4.26
4.60
5.22
5.97
6.15
7.07
7.97
8.64
9.73
11.4
13.1
14.8
15.8
17.9
19.8
21.7
23.5

26
2.607
0.08
0.16
0.31
0.45
0.72
1.36
1.97
2.57
3.16
3.73
4.29
4.85
5.23
5.94
6.80
7.01
8.06
9.09
9.86
11.1
13.1
15.0
16.9
18.0
20.5
22.7
24.8
26.9

28
2.807
0.09
0.18
0.34
0.50
0.80
1.52
2.20
2.87
3.53
4.17
4.80
5.43
5.86
6.66
7.62
7.86
9.04
10.2
11.1
12.5
14.7
16.9
19.0
20.3
23.1
25.5
27.9
30.2

30
3.008
0.10
0.20
0.37
0.55
0.88
1.67
2.44
3.18
3.90
4.62
5.32
6.01
6.49
7.38
8.45
8.71
10.0
11.3
12.3
13.9
16.3
18.7
21.1
22.5
25.6
28.4
31.0
33.6

32
3.208
0.11
0.21
0.41
0.60
0.96
1.83
2.66
3.48
4.27
5.06
5.83
6.59
7.12
8.09
9.26
9.56
11.0
12.4
13.5
15.2
17.9
20.6
23.2
24.8
28.2
31.1
34.0
36.8

34
3.409
0.12
0.23
0.44
0.65
1.04
1.98
2.89
3.78
4.64
5.50
6.34
7.17
7.74
8.80
10.1
10.4
12.0
13.5
14.7
16.6
19.5
22.4
25.2
27.0
30.7
33.9
37.0
40.0

36
3.609
0.13
0.25
0.48
0.69
1.12
2.14
3.12
4.07
5.01
5.93
6.84
7.74
8.36
9.50
10.9
11.2
12.9
14.6
15.9
17.9
21.1
24.2
27.3
29.1
33.1
36.6
40.0
43.2

38
3.810
0.14
0.27
0.51
0.74
1.20
2.29
3.35
4.37
5.38
6.37
7.35
8.31
8.98
10.2
11.7
12.1
13.9
15.7
17.1
19.3
22.7
26.0
29.3
31.3
35.6
39.3
42.9
46.3

40
4.010
0.15
0.28
0.54
0.79
1.28
2.45
3.57
4.67
5.74
6.80
7.85
8.88
9.60
10.9
12.5
12.9
14.9
16.8
18.2
20.6
24.3
27.8
31.3
33.5
38.0
42.0
45.7
49.3

44
4.411
0.16
0.32
0.61
0.89
1.44
2.75
4.02
5.26
6.47
7.67
8.85
10.0
10.8
12.3
14.1
14.6
16.8
19.0
20.6
23.2
27.4
31.4
35.3
37.7
42.8
47.2
51.3
55.3

48
4.812
0.18
0.35
0.68
0.99
1.60
3.06
4.47
5.85
7.20
8.53
9.84
11.1
12.0
13.7
15.7
16.2
18.7
21.1
22.9
25.8
30.5
34.9
39.2
41.9
47.4
52.2
56.7

56
5.614
0.22
0.42
0.81
1.18
1.91
3.67
5.36
7.02
8.64
10.2
11.8
13.4
14.5
16.5
18.9
19.5
22.4
25.3
27.5
31.0
36.5
41.8
46.9
50.0
56.4

64
6.416
0.25
0.49
0.94
1.38
2.23
4.27
6.24
8.17
10.1
11.9
13.8
15.6
16.9
19.2
22.0
22.7
26.1
29.5
32.0
36.1
42.4
48.5
54.2
57.7

72
7.218
0.29
0.55
1.07
1.57
2.54
4.87
7.12
9.32
11.5
13.6
15.7
17.8
19.2
21.
25.1
25.9
29.8
33.6
36.5
41.1
48.2
54.9
61.3
65.1

80
8.020
0.32
0.62
1.20
1.76
2.84
5.46
7.99
10.5
12.9
15.3
17.6
20.0
21.6
24.5
28.1
29.0
33.4
37.7
40.8
45.9
53.8
61.2

8M PowerGrip GT2 Power Rating Table — 30mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
700
800
870
1000
1160
1200
1400
1600
1750
2000
2400
2800
3200
3450
4000
4500
5000
5500

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
22
2.206
0.10
0.20
0.37
0.54
0.87
1.64
2.37
3.08
3.77
4.45
5.11
5.77
6.22
7.05
8.06
8.31
9.54
10.7
11.6
13.1
15.4
17.6
19.8
21.1
24.0
26.6
29.0
31.4

24
2.406
0.12
0.22
0.43
0.62
1.00
1.89
2.74
3.56
4.36
5.15
5.93
6.69
7.22
8.19
9.37
9.66
11.1
12.5
13.6
15.3
18.0
20.6
23.2
24.7
28.1
31.1
34.0
36.8

26
2.607
0.13
0.25
0.48
0.70
1.12
2.13
3.10
4.04
4.95
5.85
6.74
7.61
8.22
9.33
10.7
11.0
12.7
14.3
15.5
17.5
20.5
23.6
26.5
28.3
32.2
35.6
39.0
42.2

28
2.807
0.15
0.28
0.53
0.78
1.25
2.38
3.46
4.51
5.54
6.55
7.54
8.52
9.20
10.5
12.0
12.3
14.2
16.0
17.4
19.6
23.1
26.5
29.8
31.9
36.2
40.1
43.8
47.5

30
3.008
0.16
0.31
0.59
0.86
1.38
2.63
3.82
4.99
6.13
7.25
8.35
9.44
10.2
11.6
13.3
13.7
15.7
17.8
19.3
21.8
25.6
29.4
33.1
35.4
40.3
44.5
48.7
52.7

32
3.208
0.17
0.33
0.64
0.94
1.51
2.87
4.18
5.46
6.71
7.94
9.15
10.3
11.2
12.7
14.5
15.0
17.3
19.5
21.2
23.9
28.1
32.3
36.4
38.9
44.2
48.9
53.4
57.8

34
3.409
0.19
0.36
0.69
1.01
1.63
3.12
4.54
5.93
7.29
8.63
9.95
11.2
12.2
13.8
15.8
16.3
18.8
21.2
23.0
26.0
30.7
35.2
39.6
42.3
48.1
53.2
58.1
62.9

36
3.609
0.20
0.39
0.75
1.09
1.76
3.36
4.90
6.40
7.87
9.31
10.7
12.1
13.1
14.9
17.1
17.6
20.3
23.0
24.9
28.1
33.1
38.0
42.8
45.8
52.0
57.5
62.8
67.8

38
3.810
0.22
0.42
0.80
1.17
1.89
3.60
5.25
6.87
8.45
10.0
11.5
13.0
14.1
16.0
18.4
19.0
21.8
24.7
26.8
30.2
35.6
40.9
46.0
49.2
55.9
61.7
67.3
72.7

40
4.010
0.23
0.44
0.85
1.25
2.01
3.84
5.61
7.33
9.02
10.7
12.3
13.9
15.1
17.1
19.6
20.3
23.3
26.4
28.6
32.3
38.1
43.7
49.2
52.5
59.7
65.9
71.8
77.5

44
4.411
0.26
0.50
0.96
1.40
2.26
4.33
6.32
8.26
10.2
12.0
13.9
15.7
17.0
19.3
22.2
22.9
26.3
29.8
32.3
36.5
43.0
49.3
55.4
59.2
67.1
74.0
80.6
86.8

48
4.812
0.29
0.55
1.06
1.55
2.51
4.80
7.02
9.18
11.3
13.4
15.5
17.5
18.9
21.5
24.7
25.4
29.3
33.1
36.0
40.6
47.8
54.8
61.6
65.7
74.5
82.0
89.1

56
5.614
0.34
0.66
1.27
1.86
3.00
5.76
8.42
11.0
13.6
16.1
18.6
21.0
22.7
25.8
29.6
30.6
35.2
39.8
43.2
48.7
57.3
65.6
73.6
78.4
88.5

64
6.416
0.40
0.76
1.47
2.16
3.49
6.70
9.80
12.8
15.8
18.7
21.6
24.5
26.5
30.1
34.5
35.6
41.0
46.3
50.3
56.7
66.6
76.1
85.2
90.6

*Refer to page 15 for additional Service Factors for speeds of 600 rpm or less.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

Page 46

R

The Gates Rubber Company

72
7.218
0.45
0.87
1.68
2.46
3.98
7.64
11.2
14.6
18.0
21.4
24.7
27.9
30.2
34.3
39.4
40.6
46.8
52.8
57.2
64.5
75.6
86.2
96.2
102.2

80
8.020
0.51
0.98
1.88
2.76
4.47
8.58
12.5
16.4
20.2
24.0
27.7
31.4
33.9
38.5
44.2
45.6
52.4
59.1
64.1
72.1
84.4
96.0

®

®

8M PowerGrip GT 2 Power Rating Table — 50mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
700
800
870
1000
1160
1200
1400
1600
1750
2000
2400
2800
3200
3450
4000
4500
5000
5500

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
28
2.807
0.25
0.49
0.93
1.35
2.18
4.14
6.02
7.85
9.63
11.4
13.1
14.8
16.0
18.2
20.8
21.5
24.7
27.9
30.2
34.1
40.2
46.1
51.9
55.4
63.0
69.7
76.2
82.5

30
3.008
0.28
0.53
1.02
1.49
2.40
4.57
6.65
8.67
10.7
12.6
14.5
16.4
17.7
20.1
23.1
23.8
27.4
30.9
33.5
37.8
44.6
51.2
57.6
61.5
70.0
77.4
84.7
91.6

32
3.208
0.30
0.58
1.11
1.63
2.62
4.99
7.27
9.49
11.7
13.8
15.9
18.0
19.4
22.1
25.3
26.1
30.0
33.9
36.8
41.5
48.9
56.2
63.2
67.6
76.9
85.0
92.9
100.5

34
3.409
0.33
0.63
1.21
1.76
2.84
5.42
7.90
10.3
12.7
15.0
17.3
19.6
21.1
24.0
27.5
28.4
32.7
36.9
40.1
45.2
53.3
61.2
68.9
73.6
83.7
92.6
101.1
109.3

36
3.609
0.35
0.68
1.30
1.90
3.06
5.84
8.52
11.1
13.7
16.2
18.7
21.1
22.8
25.9
29.7
30.7
35.3
39.9
43.3
48.9
57.6
66.2
74.5
79.6
90.4
100.0
109.1
117.9

38
3.810
0.38
0.72
1.39
2.03
3.28
6.26
9.14
11.9
14.7
17.4
20.1
22.7
24.5
27.9
32.0
33.0
38.0
42.9
46.6
52.6
62.0
71.1
80.0
85.5
97.1
107.3
117.1
126.4

40
4.010
0.40
0.77
1.48
2.17
3.50
6.68
9.75
12.7
15.7
18.6
21.4
24.2
26.2
29.8
34.1
35.2
40.6
45.9
49.8
56.2
66.2
76.0
85.5
91.3
103.7
114.5
124.9
134.7

44
4.411
0.45
0.86
1.66
2.43
3.93
7.52
11.0
14.4
17.7
20.9
24.2
27.3
29.5
33.6
38.5
39.8
45.8
51.8
56.2
63.4
74.7
85.7
96.4
102.9
116.8
128.7
140.1
150.9

48
4.812
0.50
0.96
1.84
2.70
4.36
8.35
12.2
16.0
19.7
23.3
26.9
30.4
32.9
37.4
42.9
44.2
51.0
57.6
62.5
70.6
83.1
95.3
107.1
114.3
129.5
142.5
154.9

56
5.614
0.59
1.14
2.20
3.23
5.22
10.0
14.6
19.2
23.6
28.0
32.3
36.5
39.5
44.9
51.5
53.1
61.2
69.2
75.0
84.7
99.7
114.1
128.0
136.4
154.0

64
6.416
0.69
1.33
2.56
3.75
6.08
11.7
17.0
22.3
27.5
32.6
37.6
42.6
46.0
52.4
60.0
61.9
71.3
80.6
87.4
98.5
115.8
132.3
148.1
157.5

72
7.218
0.78
1.51
2.92
4.28
6.92
13.3
19.4
25.5
31.4
37.2
42.9
48.6
52.5
59.7
68.5
70.6
81.3
91.8
99.5
112.1
131.5
149.9
167.4
177.7

80
8.020
0.88
1.70
3.27
4.80
7.77
14.9
21.8
28.6
35.2
41.7
48.2
54.5
58.9
67.0
76.8
79.2
91.2
102.9
111.4
125.4
146.8
166.9

*Refer to page 15 for additional Service Factors for speeds of 600 rpm or less.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

8M PowerGrip GT2 Belt Length Correction Factor
Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

384-8MGT
480-8MGT
560-8MGT
600-8MGT
640-8MGT
720-8MGT
800-8MGT
840-8MGT
880-8MGT

48
60
70
75
80
90
100
105
110

0.70
0.80
0.80
0.80
0.90
0.90
0.90
0.90
0.90

920-8MGT
960-8MGT
1040-8MGT
1064-8MGT
1120-8MGT
1160-8MGT
1200-8MGT
1224-8MGT
1280-8MGT

115
120
130
133
140
145
150
153
160

1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.10

1440-8MGT
1512-8MGT
1584-8MGT
1600-8MGT
1760-8MGT
1800-8MGT
2000-8MGT
2200-8MGT
2400-8MGT

180
189
198
200
220
225
250
275
300

1.10
1.10
1.10
1.10
1.10
1.20
1.20
1.20
1.20

2600-8MGT
2800-8MGT
3048-8MGT
3280-8MGT
3600-8MGT
4400-8MGT

325
350
381
410
450
550

1.20
1.20
1.20
1.20
1.20
1.20

R

The Driving Force in Power Transmission.

Page 47

8M PowerGrip GT2 Power Rating Table — 85mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
700
800
870
1000
1160
1200
1400
1600
1750
2000
2400
2800
3200
3450
4000
4500
5000
5500

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
34
3.409
0.57
1.09
2.10
3.07
4.94
9.43
13.7
17.9
22.1
26.1
30.1
34.0
36.8
41.8
47.9
49.4
56.9
64.3
69.7
78.7
92.8
106.5
119.9
128.1
145.6
161.0
175.9
190.2

36
3.609
0.61
1.18
2.26
3.30
5.32
10.2
14.8
19.4
23.8
28.2
32.5
36.8
39.7
45.1
51.7
53.4
61.5
69.4
75.4
85.1
100.3
115.1
129.6
138.4
157.4
173.9
189.9
205.2

38
3.810
0.65
1.26
2.42
3.53
5.70
10.9
15.9
20.8
25.6
30.3
34.9
39.5
42.7
48.5
55.6
57.4
66.1
74.6
81.0
91.4
107.8
123.7
139.3
148.7
169.0
186.7
203.7
220.0

40
4.010
0.70
1.34
2.57
3.77
6.08
11.6
17.0
22.2
27.3
32.3
37.3
42.2
45.6
51.8
59.4
61.3
70.6
79.8
86.6
97.8
115.2
132.3
148.8
158.9
180.5
199.3
217.3
234.4

44
4.411
0.78
1.50
2.89
4.23
6.84
13.1
19.1
25.0
30.8
36.4
42.0
47.6
51.4
58.5
67.0
69.2
79.7
90.1
97.7
110.3
130.0
149.2
167.7
179.1
203.1
224.0
243.8
262.5

48
4.812
0.87
1.67
3.21
4.70
7.59
14.5
21.2
27.8
34.2
40.5
46.8
52.9
57.2
65.1
74.6
77.0
88.7
100.2
108.8
122.8
144.6
165.9
186.4
198.8
225.3
248.0
269.4

56
5.614
1.03
1.99
3.83
5.62
9.09
17.4
25.5
33.3
41.0
48.6
56.1
63.6
68.7
78.2
89.6
92.5
106.5
120.4
130.6
147.3
173.4
198.5
222.7
237.3
267.9

64
6.416
1.20
2.31
4.46
6.53
10.6
20.3
29.7
38.8
47.8
56.7
65.4
74.1
80.1
91.1
104.5
107.8
124.1
140.2
152.0
171.4
201.4
230.2
257.6
274.1

72
7.218
1.36
2.63
5.07
7.44
12.0
23.1
33.8
44.3
54.6
64.7
74.7
84.5
91.4
103.9
119.1
122.9
141.5
159.7
173.1
195.0
228.8
260.9
291.2
309.1

80
8.020
1.53
2.95
5.69
8.34
13.5
25.9
38.0
49.7
61.2
72.6
83.8
94.9
102.5
116.6
133.6
137.8
158.6
179.0
193.9
218.2
255.4
290.5

*Refer to page 15 for additional Service Factors for speeds of 600 rpm or less.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

8M PowerGrip GT2 Belt Length Correction Factor
Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

384-8MGT
480-8MGT
560-8MGT
600-8MGT
640-8MGT
720-8MGT
800-8MGT
840-8MGT
880-8MGT

48
60
70
75
80
90
100
105
110

0.70
0.80
0.80
0.80
0.90
0.90
0.90
0.90
0.90

920-8MGT
960-8MGT
1040-8MGT
1064-8MGT
1120-8MGT
1160-8MGT
1200-8MGT
1224-8MGT
1280-8MGT

115
120
130
133
140
145
150
153
160

1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.10

1440-8MGT
1512-8MGT
1584-8MGT
1600-8MGT
1760-8MGT
1800-8MGT
2000-8MGT
2200-8MGT
2400-8MGT

180
189
198
200
220
225
250
275
300

1.10
1.10
1.10
1.10
1.10
1.20
1.20
1.20
1.20

2600-8MGT
2800-8MGT
3048-8MGT
3280-8MGT
3600-8MGT
4400-8MGT

325
350
381
410
450
550

1.20
1.20
1.20
1.20
1.20
1.20

Page 48

R

The Gates Rubber Company

®

®

14M PowerGrip GT 2 Power Rating Table — 40mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
800
870
1000
1160
1200
1400
1600
1750
2000
2400
2800
+3200
+3600
+4000

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
28
4.912
0.56
1.04
1.95
2.81
4.44
8.21
11.7
15.1
18.3
21.4
27.5
29.5
33.2
37.7
38.7
44.1
49.3
53.1
59.2
68.5
77.3
85.5
93.2
100.4

29
5.088
0.58
1.09
2.04
2.94
4.64
8.58
12.3
15.8
19.1
22.4
28.7
30.9
34.8
39.4
40.6
46.2
51.6
55.5
61.9
71.7
80.9
89.5
97.5
105.0

30
5.263
0.60
1.13
2.12
3.06
4.83
8.94
12.8
16.4
20.0
23.4
30.0
32.2
36.3
41.1
42.3
48.2
53.9
58.0
64.7
74.9
84.4
93.4
101.7
109.5

32
5.614
0.65
1.22
2.29
3.30
5.22
9.67
13.8
17.8
21.6
25.3
32.5
34.9
39.3
44.6
45.9
52.3
58.4
62.9
70.1
81.2
91.5
101.1
110.0
118.2

34
5.965
0.70
1.31
2.46
3.54
5.60
10.4
14.9
19.1
23.3
27.3
35.0
37.6
42.3
48.0
49.4
56.3
62.9
67.7
75.5
87.3
98.4
108.6
118.1
126.7

36
6.316
0.74
1.40
2.62
3.78
5.98
11.1
15.9
20.5
24.9
29.2
37.4
40.2
45.3
51.4
52.9
60.3
67.3
72.5
80.8
93.4
105.2
116.0
125.9
134.8

38
6.667
0.79
1.48
2.79
4.02
6.36
11.8
16.9
21.8
26.5
31.1
39.9
42.9
48.3
54.8
56.4
64.2
71.7
77.2
86.1
99.4
111.8
123.2
133.5

40
7.018
0.83
1.57
2.95
4.26
6.74
12.5
17.9
23.1
28.1
33.0
42.3
45.5
51.2
58.1
59.8
68.1
76.1
81.9
91.3
105.3
118.3
130.1

44
7.720
0.92
1.74
3.27
4.73
7.49
13.9
20.0
25.7
31.3
36.7
47.1
50.6
57.1
64.7
66.6
75.8
84.7
91.1
101.4
116.8
130.9
143.5

48
8.421
1.01
1.91
3.60
5.19
8.23
15.3
22.0
28.3
34.5
40.4
51.9
55.7
62.8
71.2
73.3
83.4
93.1
100.1
111.3
127.9
142.9

52
9.123
1.10
2.08
3.92
5.66
8.97
16.7
23.9
30.9
37.6
44.1
56.6
60.8
68.5
77.6
79.9
90.8
101.3
108.9
120.9
138.6

56
9.825
1.19
2.25
4.24
6.12
9.71
18.1
25.9
33.4
40.7
47.7
61.2
65.8
74.1
84.0
86.4
98.1
109.4
117.4
130.2
148.8

60
10.527
1.28
2.42
4.55
6.58
10.4
19.4
27.9
35.9
43.7
51.3
65.8
70.7
79.6
90.2
92.8
105.3
117.2
125.8
139.3

64
11.229
1.37
2.59
4.87
7.03
11.2
20.8
29.8
38.4
46.8
54.8
70.3
75.6
85.0
96.3
99.0
112.3
125.0
134.0
148.0

68
11.930
1.46
2.75
5.18
7.49
11.9
22.1
31.7
40.9
49.8
58.4
74.8
80.4
90.4
102.3
105.2
119.2
132.5
141.9
156.5

72
12.632
1.55
2.92
5.49
7.94
12.6
23.5
33.6
43.4
52.8
61.9
79.3
85.1
95.7
108.3
111.3
126.0
139.8
149.6

80
14.036
1.72
3.25
6.11
8.83
14.0
26.1
37.4
48.3
58.7
68.8
88.0
94.5
106.2
119.9
123.2
139.2
154.0
164.3

14M PowerGrip GT2 Power Rating Table — 55mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
800
870
1000
1160
1200
1400
1600
1750
2000
2400
+2800
+3200
+3600
+4000

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
28
4.912
0.83
1.57
2.93
4.22
6.66
12.3
17.6
22.6
27.5
32.2
41.2
44.2
49.8
56.5
58.1
66.1
73.9
79.6
88.7
102.7
115.9
128.3
139.8
150.6

29
5.088
0.87
1.63
3.06
4.40
6.96
12.9
18.4
23.7
28.7
33.6
43.1
46.3
52.1
59.1
60.8
69.2
77.4
83.3
92.9
107.5
121.3
134.2
146.3
157.5

30
5.263
0.90
1.70
3.18
4.59
7.25
13.4
19.2
24.7
30.0
35.1
45.0
48.3
54.4
61.7
63.5
72.3
80.8
87.0
97.0
112.3
126.7
140.1
152.6
164.2

32
5.614
0.97
1.83
3.43
4.95
7.82
14.5
20.7
26.7
32.4
38.0
48.7
52.4
59.0
66.9
68.8
78.4
87.6
94.3
105.2
121.7
137.2
151.7
165.0
177.3

34
5.965
1.04
1.96
3.68
5.31
8.40
15.6
22.3
28.7
34.9
40.9
52.4
56.4
63.5
72.0
74.1
84.4
94.3
101.6
113.3
131.0
147.6
163.0
177.1
190.0

36
6.316
1.11
2.09
3.93
5.67
8.97
16.7
23.8
30.7
37.3
43.8
56.1
60.3
68.0
77.1
79.4
90.4
101.0
108.8
121.3
140.2
157.7
174.0
188.8
202.2

38
6.667
1.18
2.23
4.18
6.03
9.54
17.7
25.4
32.7
39.8
46.6
59.8
64.3
72.4
82.2
84.6
96.3
107.6
115.9
129.1
149.1
167.7
184.7
200.2

40
7.018
1.25
2.36
4.42
6.38
10.1
18.8
26.9
34.7
42.2
49.4
63.5
68.2
76.9
87.2
89.7
102.2
114.2
122.9
136.9
158.0
177.5
195.2

44
7.720
1.39
2.61
4.91
7.09
11.2
20.9
29.9
38.6
47.0
55.1
70.7
76.0
85.6
97.1
99.9
113.7
127.0
136.7
152.1
175.2
196.3
215.3

48
8.421
1.52
2.87
5.40
7.79
12.4
23.0
32.9
42.5
51.7
60.6
77.8
83.6
94.2
106.9
110.0
125.1
139.6
150.1
166.9
191.9
214.3

52
9.123
1.66
3.13
5.88
8.49
13.5
25.0
35.9
46.3
56.4
66.1
84.8
91.2
102.7
116.5
119.8
136.2
152.0
163.3
181.3
207.9

56
9.825
1.79
3.38
6.36
9.18
14.6
27.1
38.9
50.1
61.0
71.5
91.8
98.7
111.1
125.9
129.6
147.2
164.0
176.2
195.3
223.3

60
10.527
1.92
3.63
6.83
9.87
15.7
29.1
41.8
53.9
65.6
76.9
98.7
106.0
119.4
135.3
139.1
158.0
175.9
188.7
208.9

64
11.229
2.06
3.88
7.30
10.6
16.7
31.2
44.7
57.7
70.2
82.3
105.5
113.3
127.6
144.5
148.6
168.5
187.4
200.9
222.0

68
11.930
2.19
4.13
7.77
11.2
17.8
33.2
47.6
61.4
74.7
87.6
112.2
120.6
135.6
153.5
157.8
178.9
198.7
212.8
234.7

72
12.632
2.32
4.38
8.24
11.9
18.9
35.2
50.5
65.1
79.2
92.8
118.9
127.7
143.6
162.4
167.0
189.0
209.7
224.4

80
14.036
2.58
4.87
9.17
13.2
21.0
39.1
56.1
72.4
88.0
103.2
132.0
141.7
159.2
179.8
184.8
208.7
231.0
246.5

* Refer to Page 15 for additional Service Factors for speeds of 600 rpm or less.
+ Drives within this speed range may generate an objectionable noise level. This can be reduced by using commercially available acoustical damping
material in the belt guard. Contact Gates for recommendations on any drive to be installed in a noise sensitive area.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

14M PowerGrip GT2 Belt Length Correction Factor Table
Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

966-14MGT
1190-14MGT
1400-14MGT
1610-14MGT
1778-14MGT

69
85
100
115
127

0.80
0.80
0.90
0.90
0.95

1890-14MGT
2100-14MGT
2310-14MGT
2450-14MGT
2590-14MGT

135
150
165
175
185

0.95
1.00
1.00
1.00
1.05

2800-14MGT
3150-14MGT
3360-14MGT
3500-14MGT
3850-14MGT

200
225
240
250
275

1.05
1.05
1.10
1.10
1.10

4326-14MGT
4578-14MGT
4956-14MGT
5320-14MGT
5740-14MGT

309
327
354
380
410

1.10
1.10
1.10
1.10
1.10

R

The Driving Force in Power Transmission.

Page 49

®

®

14M PowerGrip GT 2 Power Rating Table — 85mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
800
870
1000
1160
1200
1400
1600
1750
+2000
+2400
+2800
+3200
+3600
+4000

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
28
4.912
1.39
2.61
4.89
7.03
11.1
20.5
29.3
37.7
45.8
53.6
68.6
73.7
83.0
94.1
96.9
110.2
123.2
132.6
147.9
171.2
193.2
213.8
233.1
251.0

29
5.088
1.45
2.72
5.10
7.34
11.6
21.5
30.7
39.4
47.9
56.1
71.8
77.2
86.9
98.5
101.4
115.4
129.0
138.8
154.9
179.2
202.2
223.7
243.8
262.4

30
5.263
1.51
2.83
5.30
7.64
12.1
22.4
32.0
41.1
49.9
58.5
74.9
80.5
90.7
102.9
105.8
120.5
134.7
145.0
161.7
187.2
211.1
233.5
254.4
273.6

32
5.614
1.62
3.05
5.72
8.25
13.0
24.2
34.6
44.5
54.1
63.3
81.2
87.3
98.3
111.5
114.7
130.6
146.0
157.2
175.3
202.9
228.7
252.8
275.1
295.5

34
5.965
1.74
3.27
6.14
8.85
14.0
26.0
37.2
47.8
58.2
68.2
87.4
93.9
105.8
120.1
123.6
140.7
157.2
169.3
188.8
218.4
246.0
271.6
295.2
316.7

36
6.316
1.85
3.49
6.55
9.45
15.0
27.8
39.7
51.2
62.2
72.9
93.6
100.6
113.3
128.6
132.3
150.6
168.4
181.3
202.1
233.6
262.9
290.0
314.7
337.1

38
6.667
1.97
3.71
6.96
10.0
15.9
29.5
42.3
54.5
66.3
77.7
99.7
107.1
120.7
137.0
141.0
160.5
179.4
193.1
215.2
248.6
279.5
307.9
333.7

40
7.018
2.08
3.93
7.37
10.6
16.8
31.3
44.8
57.8
70.3
82.4
105.8
113.7
128.1
145.3
149.6
170.3
190.3
204.8
228.1
263.3
295.8
325.4

44
7.720
2.31
4.36
8.19
11.8
18.7
34.8
49.9
64.3
78.3
91.8
117.8
126.6
142.7
161.9
166.6
189.6
211.7
227.8
253.5
292.1
327.2
358.8

48
8.421
2.54
4.78
8.99
13.0
20.6
38.3
54.9
70.8
86.1
101.0
129.6
139.4
157.0
178.1
183.3
208.5
232.7
250.2
278.2
319.8
357.2

52
9.123
2.76
5.21
9.80
14.1
22.4
41.7
59.9
77.2
93.9
110.2
141.4
152.0
171.2
194.1
199.7
227.1
253.3
272.2
302.2
346.5

56
9.825
2.98
5.63
10.6
15.3
24.3
45.2
64.8
83.6
101.7
119.2
153.0
164.4
185.2
209.9
215.9
245.3
273.4
293.6
325.6
372.1

60
10.527
3.20
6.05
11.4
16.4
26.1
48.6
69.7
89.9
109.3
128.2
164.5
176.7
199.0
225.4
231.9
263.3
293.1
314.5
348.2

64
11.229
3.43
6.47
12.2
17.6
27.9
51.9
74.5
96.1
116.9
137.1
175.8
188.9
212.6
240.8
247.6
280.9
312.4
334.9
370.1

68
11.930
3.64
6.88
13.0
18.7
29.7
55.3
79.3
102.3
124.5
145.9
187.1
200.9
226.1
255.8
263.1
298.1
331.2
354.7
391.2

72
12.632
3.86
7.30
13.7
19.8
31.5
58.6
84.1
108.5
131.9
154.7
198.2
212.8
239.3
270.7
278.3
315.1
349.6
374.0

80
14.036
4.30
8.12
15.3
22.1
35.0
65.2
93.6
120.7
146.7
171.9
220.1
236.2
265.4
299.7
308.0
347.9
385.0
410.8

14M PowerGrip GT2 Power Rating Table — 115mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
800
870
1000
1160
1200
+1400
+1600
+1750
+2000
+2400
+2800
+3200
+3600
+4000

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
28
4.912
1.94
3.65
6.84
9.85
15.5
28.8
41.1
52.8
64.1
75.1
96.1
103.2
116.2
131.8
135.6
154.3
172.5
185.7
207.1
239.7
270.4
299.3
326.3
351.4

29
5.088
2.03
3.81
7.13
10.3
16.2
30.0
42.9
55.2
67.0
78.5
100.5
108.0
121.6
137.9
141.9
161.5
180.5
194.4
216.8
250.9
283.1
313.2
341.3
367.4

30
5.263
2.11
3.96
7.43
10.7
16.9
31.3
44.7
57.6
69.9
81.9
104.9
112.7
127.0
144.0
148.2
168.7
188.5
203.0
226.4
262.0
295.5
326.9
356.1
383.1

32
5.614
2.27
4.27
8.01
11.5
18.3
33.8
48.4
62.3
75.7
88.7
113.7
122.2
137.6
156.1
160.6
182.9
204.4
220.1
245.5
284.0
320.2
353.9
385.1
413.7

34
5.965
2.43
4.58
8.59
12.4
19.6
36.4
52.0
67.0
81.4
95.4
122.4
131.5
148.2
168.1
173.0
197.0
220.1
237.0
264.3
305.7
344.4
380.2
413.3
443.3

36
6.316
2.59
4.89
9.17
13.2
20.9
38.9
55.6
71.7
87.1
102.1
131.0
140.8
158.6
180.0
185.2
210.9
235.7
253.8
282.9
327.0
368.1
406.0
440.6
471.9

38
6.667
2.75
5.19
9.75
14.1
22.3
41.3
59.2
76.3
92.8
108.8
139.5
150.0
169.0
191.8
197.4
224.7
251.1
270.3
301.3
348.0
391.3
431.1
467.1

40
7.018
2.92
5.50
10.3
14.9
23.6
43.8
62.8
80.9
98.4
115.4
148.1
159.1
179.3
203.5
209.4
238.4
266.4
286.7
319.4
368.7
414.1
455.5

44
7.720
3.23
6.10
11.5
16.5
26.2
48.7
69.9
90.1
109.6
128.5
164.9
177.3
199.7
226.6
233.2
265.4
296.4
318.9
354.9
408.9
458.1
502.4

48
8.421
3.55
6.70
12.6
18.2
28.8
53.6
76.9
99.1
120.6
141.4
181.5
195.1
219.8
249.3
256.6
291.9
325.8
350.3
389.5
447.7
500.1

52
9.123
3.86
7.29
13.7
19.8
31.4
58.4
83.8
108.1
131.5
154.2
197.9
212.8
239.7
271.8
279.6
317.9
354.6
381.0
423.1
485.1

56
9.825
4.18
7.88
14.8
21.4
34.0
63.2
90.7
117.0
142.3
166.9
214.2
230.2
259.2
293.8
302.3
343.5
382.8
411.0
455.8
521.0

60
10.527
4.49
8.47
15.9
23.0
36.5
68.0
97.5
125.8
153.1
179.5
230.3
247.4
278.6
315.6
324.7
368.6
410.4
440.3
487.4

64
11.229
4.80
9.06
17.0
24.6
39.1
72.7
104.3
134.6
163.7
192.0
246.2
264.5
297.7
337.1
346.7
393.2
437.4
468.8
518.1

68
11.930
5.10
9.64
18.1
26.2
41.6
77.4
111.1
143.2
174.2
204.3
261.9
281.3
316.5
358.1
368.3
417.4
463.7
496.6
547.7

72
12.632
5.41
10.2
19.2
27.8
44.1
82.1
117.8
151.8
184.7
216.5
277.4
298.0
335.1
379.0
389.6
441.1
489.4
523.5

80
14.036
6.02
11.4
21.4
30.9
49.0
91.3
131.0
168.9
205.4
240.7
308.1
330.7
371.6
419.6
431.2
487.1
538.9
575.1

* Refer to Page 15 for additional Service Factors for speeds of 600 rpm or less.
+ Drives within this speed range may generate an objectionable noise level. This can be reduced by using commercially available acoustical damping
material in the belt guard. Contact Gates for recommendations on any drive to be installed in a noise sensitive area.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

Page 50

R

The Gates Rubber Company

®

®

14M PowerGrip GT 2 Power Rating Table — 170mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*40
*60
*100
*200
*300
*400
*500
*600
800
870
1000
1160
+1200
+1400
+1600
+1750
+2000
+2400
+2800
+3200
+3600
+4000

Base Rated Horsepower for Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
36
6.316
3.94
7.43
13.9
20.1
31.8
59.1
84.6
108.9
132.4
155.2
199.1
214.0
241.1
273.6
281.6
320.6
358.3
385.8
430.0
497.1
559.5
617.1
669.7
717.3

38
6.667
4.19
7.89
14.8
21.4
33.8
62.8
90.0
116.0
141.0
165.3
212.1
228.0
256.9
291.5
300.0
341.6
381.7
410.9
457.9
529.0
594.8
655.2
710.0

40
7.018
4.43
8.35
15.7
22.6
35.9
66.6
95.4
123.0
149.6
175.4
225.0
241.9
272.6
309.3
318.3
362.4
404.9
435.8
485.5
560.3
629.4
692.4

44
7.720
4.91
9.27
17.4
25.1
39.8
74.1
106.2
136.9
166.5
195.3
250.6
269.4
303.6
344.4
354.4
403.4
450.5
484.7
539.5
621.5
696.3
763.6

48
8.421
5.39
10.2
19.1
27.6
43.8
81.5
116.8
150.6
183.3
214.9
275.9
296.6
334.1
379.0
390.0
443.6
495.2
532.5
592.0
680.5
760.1

52
9.123
5.87
11.1
20.8
30.1
47.7
88.8
127.4
164.3
199.9
234.4
300.9
323.4
364.3
413.1
425.0
483.2
539.0
579.2
643.1
737.3

56
9.825
6.35
12.0
22.5
32.6
51.6
96.1
137.9
177.8
216.3
253.7
325.6
349.9
394.1
446.7
459.5
522.1
581.8
624.8
692.8
791.9

60
10.527
6.82
12.9
24.2
35.0
55.5
103.4
148.3
191.2
232.7
272.8
350.0
376.1
423.4
479.7
493.5
560.2
623.8
669.3
740.9

64
11.229
7.29
13.8
25.9
37.4
59.4
110.5
158.6
204.5
248.8
291.8
374.2
402.0
452.4
512.3
526.9
597.7
664.8
712.6
787.5

68
11.930
7.76
14.6
27.6
39.8
63.2
117.7
168.8
217.7
264.8
310.5
398.0
427.6
481.0
544.4
559.8
634.4
704.8
754.8
832.4

72
12.632
8.22
15.5
29.2
42.2
67.0
124.8
179.0
230.8
280.8
329.1
421.7
452.9
509.3
576.0
592.2
670.4
743.9
795.8

80
14.036
9.15
17.3
32.5
47.0
74.5
138.8
199.1
256.8
312.2
365.9
468.3
502.7
564.8
637.8
655.5
740.4
819.2
874.2

* Refer to Page 15 for additional Service Factors for speeds of 600 rpm or less.
+ Drives within this speed range may generate an objectionable noise level. This can be reduced by using commercially available acoustical damping
material in the belt guard. Contact Gates for recommendations on any drive to be installed in a noise sensitive area.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

14M PowerGrip GT2 Belt Length Correction Factor Table
Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

Pitch/Length
Designation

No. of
Teeth

Correction
Factor

966-14MGT
1190-14MGT
1400-14MGT
1610-14MGT
1778-14MGT

69
85
100
115
127

0.80
0.80
0.90
0.90
0.95

1890-14MGT
2100-14MGT
2310-14MGT
2450-14MGT
2590-14MGT

135
150
165
175
185

0.95
1.00
1.00
1.00
1.05

2800-14MGT
3150-14MGT
3360-14MGT
3500-14MGT
3850-14MGT

200
225
240
250
275

1.05
1.05
1.10
1.10
1.10

4326-14MGT
4578-14MGT
4956-14MGT
5320-14MGT
5740-14MGT

309
327
354
380
410

1.10
1.10
1.10
1.10
1.10

R

The Driving Force in Power Transmission.

Page 51

Drive Selection Table

Pulley Combinations

The Gates Rubber Company

8.522
34
8.522
9.023
36
9.023
9.524
38
9.524
10.025
40 10.025
11.028
44 11.028
12.031
48 12.031
13.033
52 13.033
14.036
56 14.036
15.038
60 15.038
16.041
64 16.041
17.043
68 17.043
18.046
72 18.046
20.051
80 20.051
22.557
90 22.557
9.524
40 10.025
9.023
38
9.524
8.522
36
9.023
17.043
72 18.046
16.041
68 17.043
15.038
64 16.041
14.036
60 15.038
13.033
56 14.036
12.031
52 13.033
11.028
48 12.031
10.025
44 11.028
9.023
40 10.025
18.046
80 20.051
8.522
38
9.524
16.041
72 18.046
20.051
90 22.557
15.038
68 17.043
14.036
64 16.041
13.033
60 15.038
9.524
44 11.028
12.031
56 14.036
8.522
40 10.025
17.043
80 20.051
11.028
52 13.033
10.025
48 12.031
15.038
72 18.046
14.036
68 17.043
9.023
44 11.028
13.033
64 16.041
22.557
112 28.071
Length Factor*

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.053
1.056
1.059
1.059
1.063
1.067
1.071
1.077
1.083
1.091
1.100
1.111
1.111
1.118
1.125
1.125
1.133
1.143
1.154
1.158
1.167
1.176
1.176
1.182
1.200
1.200
1.214
1.222
1.231
1.244

25.98
25.20
24.41
23.62
22.05
20.47
18.90
17.32

35.83
35.04
34.25
33.47
31.89
30.31
28.74
27.16
25.59
24.02
22.44
20.87

24.01
24.80
25.59

33.86
34.64
35.43
21.65
23.22
24.80
26.37
27.95
29.52
31.10
32.67
34.25

16.53
18.10
19.68
21.25
22.83
24.40
25.19

17.29
23.22
18.87
24.79
20.45
22.02

23.60
16.47
0.80

35.04
22.42
24.00
25.57
27.15
33.06
28.72
34.64
20.02
30.30
31.87
23.18
24.76
33.45
26.33
0.85

53.54
52.76
51.97
51.18
49.61
48.03
46.46
44.88
43.31
41.73
40.16
38.58
35.43
31.50
51.57
52.36
53.15
39.37
40.94
42.52
44.09
45.67
47.24
48.82
50.39
51.97
36.99
52.75
40.14
33.44
41.72
43.29
44.87
50.78
46.45
52.36
37.77
48.02
49.60
40.92
42.49
51.17
44.07
27.03
.095

*This length factor must be used to determine the proper belt width.

61.42
60.63
59.84
59.06
57.48
55.90
54.33
52.76
51.18
49.61
48.03
46.46
43.31
39.37
59.45
60.24
61.02
47.24
48.82
50.39
51.97
53.54
55.12
56.69
58.27
59.84
44.87
60.63
48.02
41.32
49.60
51.17
52.75
58.66
54.32
60.23
45.64
55.90
57.47
48.80
50.37
59.05
51.95
34.93

69.29
68.50
67.72
66.93
65.35
63.78
62.20
60.63
59.06
57.48
55.91
54.33
51.18
47.24
67.32
68.11
68.90
55.12
56.69
58.27
59.84
61.42
62.99
64.56
66.14
67.71
52.75
68.50
55.90
49.20
57.47
59.05
60.62
66.53
62.20
68.11
53.52
63.77
65.35
56.67
58.25
66.92
59.82
42.83
1.0

77.16
76.38
75.59
74.80
73.23
71.65
70.08
68.50
66.93
65.35
63.78
62.20
59.05
55.12
75.20
75.98
76.77
62.99
64.56
66.14
67.71
69.29
70.86
72.44
74.01
75.59
60.62
76.38
63.77
57.07
65.35
66.92
68.50
74.41
70.07
75.98
61.40
71.65
73.22
64.55
66.12
74.80
67.70
50.71

85.04
84.25
83.46
82.68
81.10
79.53
77.95
76.38
74.80
73.23
71.65
70.08
66.93
62.99
83.07
83.86
84.64
70.86
72.44
74.01
75.59
77.16
78.74
80.31
81.89
83.46
68.50
84.25
71.65
64.95
73.22
74.80
76.37
82.28
77.95
83.85
69.28
79.52
81.10
72.43
74.00
82.67
75.58
58.60

88.98
88.19
87.40
86.61
85.04
83.46
81.89
80.31
78.74
77.16
75.59
74.02
70.87
66.93
87.01
87.79
88.58
74.80
76.38
77.95
79.53
81.10
82.68
84.25
85.83
87.40
72.43
88.19
75.58
68.89
77.16
78.73
80.31
86.22
81.88
87.79
73.21
83.46
85.03
76.36
77.94
86.61
79.51
62.54
1.05

92.91
92.13
91.34
90.55
88.98
87.40
85.83
84.25
82.68
81.10
79.53
77.95
74.80
70.87
90.94
91.73
92.52
78.74
80.31
81.89
83.46
85.04
86.61
88.19
89.76
91.34
76.37
92.12
79.52
72.82
81.10
82.67
84.25
90.15
85.82
91.73
77.15
87.40
88.97
80.30
81.88
90.55
83.45
66.48

96.85
96.06
95.28
94.49
92.91
91.34
89.76
88.19
86.61
85.04
83.46
81.89
78.74
74.80
94.88
95.67
96.46
82.68
84.25
85.83
87.40
88.97
90.55
92.12
93.70
95.27
80.31
96.06
83.46
76.76
85.03
86.61
88.18
94.09
89.76
95.67
81.09
91.33
92.91
84.24
85.81
94.48
87.39
70.42

100.79
100.00
99.21
98.43
96.85
95.27
93.70
92.13
90.55
88.98
87.40
85.83
82.68
78.74
98.82
99.61
100.39
86.61
88.19
89.76
91.34
92.91
94.49
96.06
97.64
99.21
84.25
100.00
87.40
80.70
88.97
90.55
92.12
98.03
93.69
99.60
85.03
95.27
96.85
88.18
89.75
98.42
91.33
74.36

104.72
103.94
103.15
102.36
100.79
99.21
97.64
96.06
94.49
92.91
91.34
89.76
86.61
82.68
102.76
103.54
104.33
90.55
92.12
93.70
95.27
96.85
98.42
100.00
101.57
103.15
88.18
103.94
91.33
84.64
92.91
94.48
96.06
101.97
97.63
103.54
88.96
99.21
100.78
92.11
93.69
102.36
95.26
78.30

108.66
107.87
107.09
106.30
104.72
103.15
101.57
100.00
98.43
96.85
95.28
93.70
90.55
86.61
106.69
107.48
108.27
94.49
96.06
97.64
99.21
100.79
102.36
103.94
105.51
107.09
92.12
107.87
95.27
88.57
96.85
98.42
100.00
105.90
101.57
107.48
92.90
103.14
104.72
96.05
97.63
106.29
99.20
82.24
1.1

112.60
111.81
111.02
110.24
108.66
107.09
105.51
103.94
102.36
100.79
99.21
97.64
94.49
90.55
110.63
111.42
112.20
98.42
100.00
101.57
103.15
104.72
106.30
107.87
109.45
111.02
96.06
111.81
99.21
92.51
100.78
102.36
103.93
109.84
105.51
111.42
96.84
107.08
108.66
99.99
101.56
110.23
103.14
86.18

6600-20M
P.L. 259.843
330 teeth

6400-20M
P.L. 251.969
320 teeth

6200-20M
P.L. 244.094
310 teeth

6000-20M
P.L. 236.220
300 teeth

5800-20M
P.L. 228.346
290 teeth

5600-20M
P.L. 220.472
280 teeth

5400-20M
P.L. 212.598
270 teeth

5200-20M
P.L. 204.724
260 teeth

5000-20M
P.L. 196.850
250 teeth

4600-20M
P.L. 181.102
230 teeth

4200-20M
P.L. 165.354
210 teeth

3800-20M
P.L. 149.606
190 teeth

Speed
Ratio

3400-20M
P.L. 133.858
170 teeth

Pitch
Pitch
No. of Diameter No. of Diameter
grooves (inches) grooves (inches)

34
36
38
40
44
48
52
56
60
64
68
72
80
90
38
36
34
68
64
60
56
52
48
44
40
36
72
34
64
80
60
56
52
38
48
34
68
44
40
60
56
36
52
90

Center Distance, Inches

DriveN
2500-20M
P.L. 98.425
125 teeth

DriveR

2000-20M
P.L. 78.740
100 teeth

Page 52

20mm Pitch PowerGrip® GT®2 Belts

116.54
115.75
114.96
114.17
112.60
111.02
109.45
107.87
106.30
104.72
103.15
101.57
98.43
94.49
114.57
115.35
116.14
102.36
103.94
105.51
107.09
108.66
110.24
111.81
113.39
114.96
100.00
115.75
103.14
96.45
104.72
106.29
107.87
113.78
109.44
115.35
100.78
111.02
112.59
103.93
105.50
114.17
107.08
90.12

20mm Pitch PowerGrip® GT®2 Belts — (continued)

Drive Selection Table

Pulley Combinations

The Driving Force in Power Transmission.

12.031
60 15.038
16.041
80 20.051
18.046
90 22.557
9.524
48 12.031
11.028
56 14.036
14.036
72 18.046
8.522
44 11.028
10.025
52 13.033
13.033
68 17.043
17.043
90 22.557
9.023
48 12.031
12.031
64 16.041
15.038
80 20.051
11.028
60 15.038
9.524
52 13.033
13.033
72 18.046
10.025
56 14.036
20.051
112 28.071
16.041
90 22.557
8.522
48 12.031
12.031
68 17.043
14.036
80 20.051
9.023
52 13.033
11.028
64 16.041
9.524
56 14.036
10.025
60 15.038
12.031
72 18.046
15.038
90 22.557
8.522
52 13.033
13.033
80 20.051
11.028
68 17.043
9.023
56 14.036
18.046
112 28.071
9.524
60 15.038
10.025
64 16.041
22.557
144 36.092
14.036
90 22.557
11.028
72 18.046
8.522
56 14.036
17.043
112 28.071
9.023
60 15.038
12.031
80 20.051
9.524
64 16.041
10.025
68 17.043
Length Factor*

1.250
1.250
1.250
1.263
1.273
1.286
1.294
1.300
1.308
1.324
1.333
1.333
1.333
1.364
1.368
1.385
1.400
1.400
1.406
1.412
1.417
1.429
1.444
1.455
1.474
1.500
1.500
1.500
1.529
1.538
1.545
1.556
1.556
1.579
1.600
1.600
1.607
1.636
1.647
1.647
1.667
1.667
1.684
1.700

18.05

27.91
20.77

22.41
19.63

32.26
29.49
23.93
33.83
31.07
25.51

23.98
21.21

22.78
17.21
18.79
21.58
20.37

23.16
16.34
21.96
17.93
20.74
19.52

22.33

32.64
27.09
21.51
28.67
31.45
24.68
30.25

33.02
26.26
22.24
31.83
27.84
30.63
29.42
25.41

17.06
21.11

32.20
22.96
27.00
31.00

19.89
18.65

29.79
28.58

16.15
21.48

20.02
26.14
31.37

20.25
19.01
17.76
0.80

30.16
23.67
28.95
27.73
0.85

45.64
38.53
34.97
49.98
47.22
41.68
51.56
48.80
43.26
35.72
50.37
44.84
39.29
46.41
49.18
42.45
47.99
28.85
36.47
50.76
44.02
40.04
49.57
45.60
48.37
47.18
43.20
37.21
49.95
40.79
44.78
48.75
30.29
47.56
46.36

53.52
46.41
42.85
57.86
55.10
49.57
59.44
56.67
51.14
43.61
58.25
52.72
47.18
54.29
57.06
50.33
55.87
36.79
44.37
58.63
51.91
47.94
57.45
53.48
56.25
55.06
51.09
45.12
57.83
48.69
52.67
56.64
38.25
55.44
54.25

37.95
43.95
49.13
31.00
47.94
41.54
46.74
45.53
.095

45.86
51.85
57.02
38.98
55.82
49.44
54.63
53.43

Page 53

*This length factor must be used to determine the proper belt width.

61.40
54.29
50.74
65.74
62.97
57.44
67.31
64.55
59.02
51.50
66.12
60.60
55.06
62.17
64.94
58.21
63.75
44.70
52.26
66.51
59.79
55.82
65.32
61.37
64.13
62.94
58.98
53.02
65.71
56.58
60.56
64.52
46.18
63.33
62.13
35.98
53.77
59.74
64.90
46.92
63.71
57.34
62.51
61.32
1.0

69.27
62.17
58.62
73.61
70.85
65.32
75.19
72.43
66.90
59.39
74.00
68.47
62.94
70.05
72.81
66.09
71.63
52.60
60.15
74.39
67.67
63.71
73.20
69.25
72.01
70.82
66.86
60.91
73.59
64.47
68.44
72.40
54.10
71.21
70.01
43.97
61.66
67.63
72.78
54.84
71.59
65.23
70.40
69.20

77.15
70.05
66.50
81.49
78.73
73.20
83.06
80.30
74.78
67.27
81.88
76.35
70.82
77.93
80.69
73.97
79.50
60.50
68.03
82.26
75.55
71.59
81.08
77.12
79.89
78.70
74.74
68.80
81.46
72.36
76.32
80.28
62.00
79.09
77.89
51.92
69.55
75.51
80.66
62.75
79.47
73.12
78.28
77.09

81.09
73.99
70.44
85.42
82.66
77.14
87.00
84.24
78.71
71.21
85.81
80.29
74.76
81.87
84.63
77.91
83.44
64.44
71.97
86.20
79.49
75.53
85.02
81.06
83.83
82.64
78.68
72.74
85.40
76.30
80.26
84.21
65.95
83.03
81.83
55.89
73.50
79.45
84.60
66.70
83.41
77.06
82.22
81.03
1.05

85.03
77.93
74.38
89.36
86.60
81.08
90.94
88.18
82.65
75.15
89.75
84.23
78.70
85.80
88.57
81.85
87.38
68.39
75.91
90.14
83.43
79.47
88.95
85.00
87.77
86.58
82.62
76.68
89.34
80.24
84.20
88.15
69.90
86.96
85.77
59.85
77.44
83.39
88.54
70.65
87.35
81.00
86.16
84.97

88.96
81.86
78.31
93.30
90.54
85.02
94.87
92.11
86.59
79.09
93.69
88.17
82.64
89.74
92.50
85.79
91.32
72.33
79.85
94.08
87.37
83.41
92.89
88.94
91.70
90.52
86.56
80.62
93.28
84.18
88.14
92.09
73.85
90.90
89.71
63.81
81.38
87.33
92.48
74.60
91.29
84.94
90.10
88.91

92.90
85.80
82.25
97.24
94.48
88.95
98.81
96.05
90.53
83.03
97.63
92.10
86.58
93.68
96.44
89.73
95.25
76.27
83.79
98.02
91.30
87.35
96.83
92.88
95.64
94.46
90.50
84.56
97.22
88.12
92.08
96.03
77.79
94.84
93.65
67.77
85.33
91.27
96.42
78.55
95.23
88.89
94.04
92.85

96.84
89.74
86.19
101.17
98.41
92.89
102.75
99.99
94.47
86.96
101.56
96.04
90.52
97.62
100.38
93.67
99.19
80.21
87.73
101.95
95.24
91.29
100.77
96.82
99.58
98.39
94.44
88.50
101.16
92.06
96.02
99.97
81.74
98.78
97.59
71.73
89.27
95.21
100.36
82.49
99.17
92.83
97.98
96.79

100.78
93.68
90.13
105.11
102.35
96.83
106.69
103.93
98.40
90.90
105.50
99.98
94.45
101.56
104.32
97.61
103.13
84.16
91.67
105.89
99.18
95.23
104.71
100.76
103.52
102.33
98.38
92.44
105.09
96.00
99.95
103.91
85.68
102.72
101.53
75.68
93.21
99.15
104.29
86.44
103.11
96.77
101.92
100.73
1.1

104.71
97.62
94.07
109.05
106.29
100.77
110.62
107.86
102.34
94.84
109.44
103.92
98.39
105.49
108.25
101.54
107.07
88.10
95.61
109.83
103.12
99.17
108.64
104.69
107.46
106.27
102.32
96.38
109.03
99.94
103.89
107.84
89.62
106.66
105.47
79.63
97.15
103.09
108.23
90.38
107.04
100.71
105.86
104.67

6600-20M
P.L. 259.843
330 teeth

6400-20M
P.L. 251.969
320 teeth

6200-20M
P.L. 244.094
310 teeth

6000-20M
P.L. 236.220
300 teeth

5800-20M
P.L. 228.346
290 teeth

5600-20M
P.L. 220.472
280 teeth

5400-20M
P.L. 212.598
270 teeth

5200-20M
P.L. 204.724
260 teeth

5000-20M
P.L. 196.850
250 teeth

4600-20M
P.L. 181.102
230 teeth

4200-20M
P.L. 165.354
210 teeth

3800-20M
P.L. 149.606
190 teeth

3400-20M
P.L. 133.858
170 teeth

Speed
Ratio

2500-20M
P.L. 98.425
125 teeth

Pitch
Pitch
No. of Diameter No. of Diameter
grooves (inches) grooves (inches)

48
64
72
38
44
56
34
40
52
68
36
48
60
44
38
52
40
80
64
34
48
56
36
44
38
40
48
60
34
52
44
36
72
38
40
90
56
44
34
68
36
48
38
40

Center Distance, Inches

DriveN
2000-20M
P.L. 78.740
100 teeth

DriveR

108.65
101.56
98.01
112.99
110.23
104.71
114.56
111.80
106.28
98.78
113.38
107.86
102.33
109.43
112.19
105.48
111.01
92.04
99.55
113.77
107.06
103.11
112.58
108.63
111.39
110.21
106.26
100.32
112.97
103.88
107.83
111.78
93.57
110.60
109.41
83.58
101.09
107.03
112.17
94.33
110.98
104.65
109.79
108.61

Drive Selection Table

Pulley Combinations

The Gates Rubber Company

13.033
90 22.557
16.041
112 28.071
8.522
60 15.038
9.023
64 16.041
9.524
68 17.043
10.025
72 18.046
20.051
144 36.092
11.028
80 20.051
15.038
112 28.071
22.557
168 42.107
12.031
90 22.557
8.522
64 16.041
9.023
68 17.043
9.524
72 18.046
8.522
68 17.043
9.023
72 18.046
10.025
80 20.051
14.036
112 28.071
18.046
144 36.092
11.028
90 22.557
20.051
168 42.107
9.524
80 20.051
8.522
72 18.046
17.043
144 36.092
22.557
192 48.122
13.033
112 28.071
9.023
80 20.051
10.025
90 22.557
16.041
144 36.092
12.031
112 28.071
18.046
168 42.107
8.522
80 20.051
9.524
90 22.557
15.038
144 36.092
20.051
192 48.122
22.557
216 54.138
17.043
168 42.107
9.023
90 22.557
11.028
112 28.071
14.036
144 36.092
16.041
168 42.107
8.522
90 22.557
18.046
192 48.122
20.051
216 54.138
Length Factor*

1.731
1.750
1.765
1.778
1.789
1.800
1.800
1.818
1.867
1.867
1.875
1.882
1.889
1.895
2.000
2.000
2.000
2.000
2.000
2.045
2.100
2.105
2.118
2.118
2.133
2.154
2.222
2.250
2.250
2.333
2.333
2.353
2.368
2.400
2.400
2.400
2.471
2.500
2.545
2.571
2.625
2.647
2.667
2.700

20.71
20.61
19.37
18.11
16.84

19.72
18.46
17.19
18.81
17.53

17.87

30.53
29.32
28.09
26.87

38.68
31.71
48.32
47.11
45.91
44.70

0.80

47.34
55.38
54.18
52.98
54.56
53.35
50.93
41.13
30.96
48.08

55.26
63.27
62.08
60.87
62.45
61.25
58.84
49.10
39.11
56.00
31.93
59.21
61.63
39.80

62.42
55.58
71.97
70.78
69.58
68.39
45.75
65.99
56.32
38.52
63.17
71.16
69.96
68.77
70.34
69.14
66.74
57.05
47.17
63.91
40.21
67.12
69.52
47.87

49.83
59.59
56.74
40.48
50.54
33.23
59.96
57.11
41.17

57.78
67.49
64.66
48.57
58.50
41.55
67.86
65.03
49.26

33.88
57.48
51.26
41.84
34.52
57.84

42.22
65.40
59.23
49.96
42.89
65.77
35.33

21.40
29.68
28.46
27.22
28.82
27.58
25.09

39.41
47.49
46.28
45.07
46.66
45.44
43.01
33.11

22.08

40.14

25.44
27.94

43.38
45.81

51.30
53.73
31.63

25.79
22.75

33.81
43.75
40.86

41.84
51.67
48.81
32.29
42.55

26.13
23.09

44.11
41.22

52.04
49.17
32.95

23.43

41.57
35.18

49.54
43.25
33.61

23.76

41.93

49.90

.095

1.0

70.31
63.49
79.85
78.66
77.47
76.27
53.73
73.88
64.24
46.61
71.06
79.04
77.85
76.65
78.23
77.03
74.63
64.97
55.17
71.82
48.34
75.01
77.41
55.88
40.90
65.71
75.39
72.56
56.59
66.44
49.72
75.76
72.94
57.30
42.55

74.26
67.45
83.79
82.60
81.41
80.21
57.71
77.82
68.19
50.63
75.01
82.99
81.79
80.60
82.17
80.98
78.58
68.93
59.15
75.77
52.38
78.96
81.36
59.87
45.02
69.67
79.34
76.52
60.59
70.41
53.77
79.71
76.89
61.30
46.69

50.40
73.31
67.18
58.00
51.08
73.68
43.85

54.46
77.26
71.14
62.01
55.15
77.64
48.02
40.45
1.05

78.20
71.40
87.73
86.54
85.35
84.16
61.68
81.77
72.15
54.64
78.96
86.93
85.73
84.54
86.11
84.92
82.53
72.89
63.13
79.71
56.40
82.90
85.30
63.86
49.11
73.63
83.28
80.47
64.57
74.37
57.80
83.66
80.84
65.29
50.80
43.14
58.50
81.21
75.11
66.01
59.19
81.59
52.15
44.74

82.15
75.35
91.67
90.48
89.29
88.10
65.65
85.71
76.10
58.63
82.90
90.87
89.67
88.48
90.06
88.86
86.47
76.84
67.11
83.66
60.41
86.85
89.24
67.83
53.18
77.59
87.23
84.41
68.56
78.33
61.82
87.61
84.79
69.28
54.89
47.34
62.52
85.16
79.07
70.00
63.22
85.54
56.25
48.97

86.09
79.30
95.61
94.42
93.23
92.04
69.62
89.65
80.05
62.62
86.85
94.81
93.61
92.42
94.00
92.80
90.41
80.80
71.08
87.61
64.41
90.79
93.18
71.81
57.23
81.54
91.17
88.36
72.53
82.29
65.83
91.55
88.74
73.26
58.95
51.50
66.53
89.11
83.03
73.98
67.24
89.49
60.32
53.15

90.03
83.25
99.55
98.36
97.17
95.98
73.58
93.59
84.00
66.60
90.79
98.75
97.56
96.36
97.94
96.74
94.36
84.75
75.05
91.55
68.40
94.74
97.13
75.78
61.26
85.50
95.12
92.31
76.51
86.24
69.83
95.49
92.68
77.23
63.00
55.62
70.54
93.06
86.98
77.96
71.25
93.44
64.38
57.29

93.97
87.19
103.49
102.30
101.11
99.92
77.54
97.53
87.95
70.58
94.74
102.69
101.50
100.30
101.88
100.69
98.30
88.70
79.01
95.50
72.39
98.68
101.07
79.75
65.28
89.45
99.06
96.25
80.48
90.19
73.82
99.44
96.63
81.21
67.03
59.71
74.53
97.01
90.94
81.93
75.25
97.38
68.42
61.40
1.1

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged Sprockets, on page 134.

97.92
91.14
107.43
106.24
105.05
103.86
81.49
101.47
91.90
74.56
98.68
106.63
105.44
104.24
105.82
104.63
102.24
92.65
82.97
99.44
76.37
102.62
105.01
83.71
69.29
93.40
103.00
100.20
84.44
94.15
77.81
103.38
100.58
85.18
71.05
63.78
78.53
100.95
94.89
85.91
79.24
101.33
72.45
65.49

6600-20M
P.L. 259.843
330 teeth

6400-20M
P.L. 251.969
320 teeth

6200-20M
P.L. 244.094
310 teeth

6000-20M
P.L. 236.220
300 teeth

5800-20M
P.L. 228.346
290 teeth

5600-20M
P.L. 220.472
280 teeth

5400-20M
P.L. 212.598
270 teeth

5200-20M
P.L. 204.724
260 teeth

5000-20M
P.L. 196.850
250 teeth

4600-20M
P.L. 181.102
230 teeth

54.52
47.65
64.09
62.89
61.70
60.50
37.73
58.09
48.38

42.28
32.41

0.85

4200-20M
P.L. 165.354
210 teeth

46.61
39.70
56.20
55.01
53.81
52.60
29.62
50.19
40.42

24.38

34.50
15.87

3800-20M
P.L. 149.606
190 teeth

Speed
Ratio

3400-20M
P.L. 133.858
170 teeth

Pitch
Pitch
No. of Diameter No. of Diameter
grooves (inches) grooves (inches)

52
64
34
36
38
40
80
44
60
90
48
34
36
38
34
36
40
56
72
44
80
38
34
68
90
52
36
40
64
48
72
34
38
60
80
90
68
36
44
56
64
34
72
80

Center Distance, Inches

DriveN
2500-20M
P.L. 98.425
125 teeth

DriveR

2000-20M
P.L. 78.740
100 teeth

Page 54

20mm Pitch PowerGrip® GT®2 Belts — (continued)

101.86
95.09
111.37
110.18
108.99
107.80
85.45
105.42
95.84
78.53
102.62
110.57
109.38
108.18
109.76
108.57
106.18
96.60
86.93
103.38
80.34
106.56
108.95
87.67
73.29
97.35
106.94
104.14
88.41
98.10
81.79
107.33
104.52
89.14
75.06
67.84
82.51
104.90
98.85
89.87
83.23
105.28
76.47
69.55

20mm Pitch PowerGrip® GT®2 Belts — (continued)

Drive Selection Table

Pulley Combinations

The Driving Force in Power Transmission.

13.033
144 36.092
10.025
112 28.071
15.038
168 42.107
17.043
192 48.122
9.524
112 28.071
12.031
144 36.092
14.036
168 42.107
16.041
192 48.122
18.046
216 54.138
9.023
112 28.071
17.043
216 54.138
15.038
192 48.122
13.033
168 42.107
11.028
144 36.092
8.522
112 28.071
16.041
216 54.138
14.036
192 48.122
12.031
168 42.107
10.025
144 36.092
15.038
216 54.138
13.033
192 48.122
9.524
144 36.092
11.028
168 42.107
14.036
216 54.138
9.023
144 36.092
12.031
192 48.122
13.033
216 54.138
10.025
168 42.107
8.522
144 36.092
11.028
192 48.122
9.524
168 42.107
12.031
216 54.138
9.023
168 42.107
10.025
192 48.122
11.028
216 54.138
8.522
168 42.107
9.524
192 48.122
9.023
192 48.122
10.025
216 54.138
8.522
192 48.122
9.524
216 54.138
9.023
216 54.138
8.522
216 54.138
Length Factor*

2.769
2.800
2.800
2.824
2.947
3.000
3.000
3.000
3.000
3.111
3.176
3.200
3.231
3.273
3.294
3.375
3.429
3.500
3.600
3.600
3.692
3.789
3.818
3.857
4.000
4.000
4.154
4.200
4.235
4.364
4.421
4.500
4.667
4.800
4.909
4.941
5.053
5.333
5.400
5.647
5.684
6.000
6.353
0.85

34.26
43.95

42.52
51.97
35.16

36.21
26.33

44.30
34.91

52.33
43.19
35.79

36.55

44.65

52.68

60.67

26.95
36.89

35.56
45.00

36.43
43.87
53.03

37.20
44.87
52.03
61.03

27.57

28.16
36.21

37.06
44.54

37.82
45.52
52.71

27.87

36.53
28.76

44.87
37.69

38.44
53.05
46.18

28.18

36.86

45.20

53.39
39.06

28.48

29.36
37.18

38.32
45.53
30.35
38.64

46.83
53.73
39.67
47.16

29.95

38.95
30.93

47.48
40.29

30.24

39.26
31.22
31.51

47.81
40.60
40.90

31.80

41.21
32.56
32.84
33.12

.095

1.0

50.65
59.95
43.55
35.96
60.31
51.34
44.21
36.58

58.71
67.90
51.76
44.50
68.27
59.41
52.44
45.15
37.27
68.63
37.88
45.80
53.12
60.11
68.99
38.49
46.44
53.79
60.80
39.10
47.09
61.15
54.46
39.70
61.50
47.73
40.31
55.13
61.84
48.37
55.46
40.91
55.80
49.01
41.51
56.13
49.32
49.64
42.11
49.96
42.41
42.71
43.01

62.72
71.87
55.83
48.68
72.24
63.42
56.52
49.34
41.70
72.60
42.32
49.99
57.20
64.13
72.97
42.95
50.65
57.88
64.83
43.57
51.30
65.18
58.56
44.19
65.53
51.95
44.80
59.23
65.87
52.60
59.57
45.42
59.91
53.25
46.04
60.24
53.57
53.89
46.65
54.22
46.96
47.26
47.57
1.05

66.72
75.84
59.88
52.82
76.21
67.43
60.57
53.48
46.02
76.57
46.66
54.15
61.26
68.14
76.94
47.29
54.81
61.94
68.84
47.92
55.47
69.19
62.63
48.55
69.54
56.13
49.18
63.31
69.90
56.79
63.65
49.81
63.99
57.44
50.44
64.33
57.77
58.10
51.06
58.42
51.38
51.69
52.00

70.71
79.80
63.92
56.92
80.17
71.42
64.61
57.59
50.27
80.54
50.91
58.27
65.30
72.14
80.90
51.56
58.94
66.00
72.85
52.20
59.60
73.20
66.68
52.84
73.55
60.27
53.48
67.37
73.91
60.93
67.72
54.12
68.06
61.60
54.75
68.40
61.93
62.26
55.39
62.59
55.71
56.02
56.34

74.70
83.77
67.94
61.00
84.13
75.42
68.64
61.68
54.46
84.50
55.12
62.36
69.34
76.13
84.87
55.77
63.04
70.03
76.84
56.42
63.71
77.20
70.73
57.07
77.56
64.38
57.72
71.42
77.91
65.05
71.76
58.36
72.11
65.72
59.01
72.45
66.06
66.39
59.65
66.73
59.97
60.30
60.62

78.68
87.73
71.95
65.06
88.09
79.40
72.66
65.75
58.62
88.46
59.28
66.43
73.36
80.12
88.83
59.94
67.12
74.06
80.84
60.60
67.80
81.19
74.76
61.25
81.55
68.47
61.91
75.45
81.91
69.15
75.80
62.56
76.15
69.83
63.22
76.50
70.16
70.50
63.87
70.84
64.19
64.52
64.84

82.66
91.68
75.96
69.11
92.05
83.38
76.66
69.80
62.74
92.42
63.41
70.49
77.37
84.10
92.79
64.08
71.18
78.07
84.82
64.74
71.86
85.18
78.78
65.41
85.54
72.55
66.07
79.48
85.90
73.23
79.83
66.73
80.18
73.91
67.39
80.53
74.25
74.59
68.05
74.93
68.37
68.70
69.03
1.1

Page 55

*This length factor must be used to determine the proper belt width.
Center Distance is greater than eight times the small diameter and the large sprocket is not flanged. See Engineering Section I-10, Use of Flanged Sprockets, on page 134.

86.63
95.64
79.95
73.15
96.01
87.36
80.67
73.84
66.84
96.38
67.52
74.54
81.38
88.08
96.75
68.19
75.23
82.08
88.81
68.86
75.92
89.17
82.79
69.53
89.53
76.60
70.20
83.49
89.89
77.29
83.85
70.86
84.20
77.98
71.53
84.55
78.32
78.66
72.19
79.00
72.53
72.86
73.19

6600-20M
P.L. 259.843
330 teeth

6400-20M
P.L. 251.969
320 teeth

6200-20M
P.L. 244.094
310 teeth

6000-20M
P.L. 236.220
300 teeth

5800-20M
P.L. 228.346
290 teeth

5600-20M
P.L. 220.472
280 teeth

5400-20M
P.L. 212.598
270 teeth

5200-20M
P.L. 204.724
260 teeth

5000-20M
P.L. 196.850
250 teeth

4600-20M
P.L. 181.102
230 teeth

25.72
35.87

29.65

0.80

4200-20M
P.L. 165.354
210 teeth

3800-20M
P.L. 149.606
190 teeth

3400-20M
P.L. 133.858
170 teeth

Speed
Ratio

2500-20M
P.L. 98.425
125 teeth

Pitch
Pitch
No. of Diameter No. of Diameter
grooves (inches) grooves (inches)

52
40
60
68
38
48
56
64
72
36
68
60
52
44
34
64
56
48
40
60
52
38
44
56
36
48
52
40
34
44
38
48
36
40
44
34
38
36
40
34
38
36
34

Center Distance, Inches

DriveN
2000-20M
P.L. 78.740
100 teeth

DriveR

90.60
99.59
83.95
77.17
99.96
91.33
84.66
77.87
70.92
100.34
71.60
78.57
85.37
92.06
100.71
72.28
79.26
86.08
92.78
72.96
79.96
93.15
86.79
73.63
93.51
80.65
74.30
87.50
93.87
81.34
87.86
74.98
88.21
82.03
75.65
88.56
82.38
82.72
76.32
83.06
76.65
76.99
77.32

®

®

20M PowerGrip GT 2 Power Rating Table — 115mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*30
*40
*50
*60
*80
*100
*150
*200
*300
*400
*500
*600
730
800
870
970
1170
+1200
+1460
+1600
+1750
+2000

Base Rated Horsepower For Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
34
8.522
2.7
5.4
8.1
10.7
13.4
16.1
21.5
26.9
40.3
53.7
77.9
98.0
116.8
134.5
155.9
166.8
177.2
191.4
217.3
220.9
248.9
261.6
273.4
288.5

36
9.023
2.9
5.8
8.6
11.5
14.4
17.3
23.0
28.8
43.2
57.5
83.3
104.7
124.7
143.5
166.1
177.6
188.6
203.5
230.4
234.1
262.8
275.5
287.0
301.0

38
9.524
3.1
6.1
9.2
12.3
15.4
18.4
24.6
30.7
46.1
61.4
88.8
111.6
132.8
152.6
176.5
188.5
200.1
215.6
243.6
247.4
276.5
289.1
300.2
312.6

40
10.026
3.3
6.5
9.8
13.0
16.3
19.6
26.1
32.6
48.9
65.2
94.4
118.5
140.9
161.8
187.0
199.6
211.7
227.9
256.7
260.6
290.0
302.4
312.9
323.5

44
11.028
3.6
7.3
10.9
14.5
18.1
21.8
29.0
36.3
54.4
72.4
105.9
132.8
157.6
180.7
208.3
222.0
235.1
252.5
283.0
287.0
316.5
327.9
336.7
342.4

48
12.031
4.0
7.9
11.9
15.8
19.8
23.7
31.7
39.6
59.3
79.0
117.7
147.4
174.7
199.9
229.9
244.7
258.7
277.2
308.8
313.0
341.6
351.6
357.7
357.0

52
13.033
4.3
8.6
12.9
17.1
21.4
25.7
34.3
42.9
64.2
85.6
125.5
156.9
185.6
212.0
243.0
258.3
272.5
291.1
321.9
325.8
350.8
357.6
359.4

56
14.036
4.6
9.2
13.8
18.5
23.1
27.7
36.9
46.1
69.2
92.1
133.0
165.9
196.0
223.4
255.3
270.8
285.1
303.5
332.9
336.4
356.6
359.4
355.8

60
15.038
4.9
9.8
14.6
19.5
24.4
29.3
39.0
48.8
73.1
97.4
140.3
174.8
206.0
234.3
266.9
282.5
296.8
314.8
342.0
345.0
359.2
357.2

64
16.041
5.1
10.3
15.4
20.6
25.7
30.8
41.1
51.4
77.0
102.5
147.5
183.4
215.8
244.8
277.9
293.5
307.6
324.9
349.3
351.7
358.6

68
17.043
5.4
10.8
16.2
21.6
27.0
32.4
43.1
53.9
80.8
107.5
154.5
191.8
225.2
254.9
288.2
303.7
317.4
333.7
354.6
356.3
354.4

72
18.046
5.6
11.3
16.9
22.6
28.2
33.9
45.1
56.4
84.5
112.4
161.4
200.0
234.3
264.5
297.9
313.1
326.2
341.3
358.0
358.8

80
20.051
6.1
12.3
18.4
24.5
30.7
36.8
49.0
61.3
91.7
122.1
174.8
215.7
251.6
282.5
315.2
329.3
340.8
352.6
358.4
357.1

90
22.557
6.7
13.5
20.2
26.9
33.6
40.3
53.8
67.2
100.5
133.7
190.7
234.2
271.4
302.4
333.1
344.9
353.3

20M PowerGrip GT2 Power Rating Table — 170mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*30
*40
*50
*60
*80
*100
*150
*200
*300
*400
*500
*600
730
800
870
970
1170
+1200
+1460
+1600
+1750
+2000

Base Rated Horsepower For Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
34
8.522
4.2
8.3
12.5
16.7
20.9
25.0
33.4
41.7
62.5
83.4
120.9
152.3
181.5
208.9
242.3
259.2
275.5
297.7
338.1
343.8
387.9
408.1
426.9
451.5

36
9.023
4.5
8.9
13.4
17.9
22.4
26.8
35.8
44.7
67.0
89.4
129.3
162.7
193.8
222.9
258.2
276.1
293.2
316.5
358.6
364.5
409.7
430.0
448.4
471.5

38
9.524
4.8
9.5
14.3
19.1
23.9
28.6
38.2
47.7
71.5
95.3
137.8
173.3
206.3
237.1
274.3
293.1
311.1
335.4
379.2
385.2
431.3
451.5
469.4
490.3

40
10.026
5.1
10.1
15.2
20.3
25.3
30.4
40.5
50.6
75.9
101.2
146.6
184.1
218.9
251.4
290.6
310.3
329.1
354.5
399.8
405.9
452.6
472.5
489.6
508.0

44
11.028
5.6
11.3
16.9
22.5
28.2
33.8
45.0
56.3
84.4
112.5
164.4
206.3
244.9
280.8
323.8
345.3
365.7
393.0
440.9
447.3
494.4
513.1
527.8
539.3

48
12.031
6.1
12.3
18.4
24.6
30.7
36.9
49.2
61.4
92.1
122.7
182.8
229.0
271.5
310.7
357.5
380.7
402.6
431.6
481.6
488.1
534.3
551.0
562.1
564.2

52
13.033
6.7
13.3
20.0
26.6
33.3
39.9
53.2
66.5
99.8
132.9
194.9
243.7
288.4
329.5
378.0
401.9
424.2
453.4
502.3
508.6
549.6
561.7
566.4

56
14.036
7.2
14.3
21.5
28.7
35.8
43.0
57.3
71.6
107.4
143.1
206.5
257.8
304.6
347.3
397.2
421.5
444.0
473.1
520.0
525.7
559.8
566.1
562.9

60
15.038
7.6
15.2
22.7
30.3
37.9
45.5
60.6
75.8
113.6
151.3
217.9
271.6
320.2
364.4
415.4
440.0
462.5
491.0
534.9
539.9
565.2
564.5

64
16.041
8.0
16.0
23.9
31.9
39.9
47.9
63.8
79.8
119.5
159.2
229.1
285.0
335.4
380.8
432.7
457.3
479.5
507.1
547.0
551.2
565.8

68
17.043
8.4
16.8
25.1
33.5
41.9
50.2
67.0
83.7
125.4
167.0
240.0
298.1
350.1
396.6
448.9
473.4
495.1
521.4
556.3
559.4
561.2

72
18.046
8.8
17.5
26.3
35.1
43.8
52.6
70.1
87.6
131.2
174.6
250.7
310.8
364.3
411.7
464.2
488.2
509.2
533.7
562.5
564.3

80
20.051
9.5
19.0
28.6
38.1
47.6
57.1
76.1
95.1
142.5
189.6
271.5
335.4
391.3
439.9
491.7
514.3
533.0
552.6
565.6
564.3

90
22.557
10.4
20.9
31.3
41.8
52.2
62.6
83.5
104.3
156.1
207.6
296.4
364.3
422.5
471.3
520.3
539.7
553.9

Shaded area indicates drive conditions where reduced service life can be expected.
* Refer to Page 15 for additional Service Factors for speeds of 600 rpm or less.
+ Drives within this speed range may generate an objectionable noise level. This can be reduced by using commercially available acoustical damping
material in the belt guard. Contact Gates for recommendations on any drive to be installed in a noise sensitive area.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

Page 56

R

The Gates Rubber Company

®

®

20M PowerGrip GT 2 Power Rating Table — 230mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*30
*40
*50
*60
*80
*100
*150
*200
*300
*400
*500
*600
730
800
870
970
+1170
+1200
+1460
+1600
+1750
+2000

Base Rated Horsepower For Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
38
9.524
6.6
13.2
19.9
26.5
33.1
39.7
53.0
66.2
99.3
132.3
191.4
240.7
286.4
329.2
381.0
407.2
432.2
466.1
527.1
535.6
600.1
628.6
654.0
684.2

40
10.026
7.0
14.1
21.1
28.1
35.2
42.2
56.3
70.3
105.4
140.5
203.5
255.7
304.0
349.2
403.7
431.1
457.3
492.6
555.8
564.5
630.0
658.1
682.5
709.3

44
11.028
7.8
15.6
23.5
31.3
39.1
46.9
62.5
78.2
117.2
156.2
228.3
286.4
340.1
390.0
449.8
479.7
508.2
546.2
613.2
622.2
688.5
715.1
736.4
754.1

48
12.031
8.5
17.1
25.6
34.1
42.7
51.2
68.2
85.3
127.9
170.4
253.9
318.0
377.0
431.6
496.6
529.0
559.5
600.0
670.0
679.2
744.5
768.5
785.0
790.2

52
13.033
9.2
18.5
27.7
37.0
46.2
55.5
73.9
92.4
138.5
184.5
270.6
338.4
400.5
457.7
525.2
558.5
589.7
630.5
699.2
708.0
766.4
784.3
792.3

56
14.036
10.0
19.9
29.9
39.8
49.8
59.7
79.6
99.5
149.1
198.6
286.8
358.0
423.0
482.5
552.0
585.9
617.4
658.1
724.1
732.2
781.4
791.6
788.8

60
15.038
10.5
21.1
31.6
42.1
52.6
63.1
84.2
105.2
157.7
210.0
302.6
377.2
444.8
506.3
577.4
611.7
643.2
683.3
745.4
752.6
790.0
790.7

64
16.041
11.1
22.2
33.2
44.3
55.4
66.5
88.6
110.8
166.0
221.0
318.1
395.8
466.0
529.2
601.5
635.9
667.1
705.9
762.8
768.8
791.9

68
17.043
11.6
23.3
34.9
46.5
58.1
69.8
93.0
116.2
174.1
231.9
333.3
414.0
486.4
551.2
624.3
658.5
689.0
726.1
776.2
780.8
786.8

72
18.046
12.2
24.3
36.5
48.7
60.8
73.0
97.3
121.6
182.2
242.5
348.2
431.7
506.2
572.2
645.6
679.4
708.9
743.7
785.6
788.5

80
20.051
13.2
26.4
39.7
52.9
66.1
79.3
105.7
132.1
197.8
263.3
377.1
465.9
543.8
611.6
684.3
716.1
742.6
770.9
791.6
790.3

90
22.557
14.5
29.0
43.5
58.0
72.5
87.0
115.9
144.8
216.8
288.3
411.7
506.1
587.3
655.6
724.6
752.2
772.8

20M PowerGrip GT2 Power Rating Table — 290mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*30
*40
*50
*60
*80
*100
*150
*200
*300
*400
*500
*600
730
800
870
+970
+1170
+1200
+1460
+1600
+1750

Base Rated Horsepower For Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
52
13.033
11.8
23.7
35.5
47.3
59.1
71.0
94.6
118.2
177.3
236.2
346.3
433.1
512.7
585.9
672.4
715.1
755.1
807.6
896.1
907.4
983.3
1007.0
1018.1

56
14.036
12.7
25.5
38.2
50.9
63.7
76.4
101.9
127.3
190.8
254.2
367.0
458.2
541.5
617.6
706.8
750.3
790.8
843.1
928.3
938.8
1003.1
1017.0
1014.8

60
15.038
13.5
26.9
40.4
53.9
67.3
80.8
107.7
134.6
201.8
268.8
387.3
482.8
569.4
648.2
739.4
783.5
823.9
875.5
955.8
965.2
1014.8
1016.8

64
16.041
14.2
28.4
42.5
56.7
70.9
85.1
113.4
141.7
212.4
282.9
407.1
506.7
596.5
677.5
770.4
814.6
854.7
904.8
978.5
986.4
1018.0

68
17.043
14.9
29.8
44.6
59.5
74.4
89.3
119.0
148.7
222.9
296.7
426.6
529.9
622.7
705.7
799.6
843.6
882.9
930.8
996.2
1002.3
1012.4

72
18.046
15.6
31.1
46.7
62.3
77.8
93.4
124.5
155.6
233.1
310.4
445.6
552.7
648.1
732.7
827.1
870.5
908.6
953.7
1008.7
1012.7

80
20.051
16.9
33.8
50.8
67.7
84.6
101.5
135.3
169.0
253.2
336.9
482.6
596.4
696.3
783.3
876.8
917.9
952.2
989.2
1017.6
1016.4

90
22.557
18.6
37.1
55.7
74.2
92.8
111.3
148.3
185.3
277.5
369.0
527.0
648.0
752.1
839.9
928.9
964.7
991.6

Shaded area indicates drive conditions where reduced service life can be expected.
* Refer to Page 15 for additional Service Factors for speeds of 600 rpm or less.
+ Drives within this speed range may generate an objectionable noise level. This can be reduced by using commercially available acoustical damping
material in the belt guard. Contact Gates for recommendations on any drive to be installed in a noise sensitive area.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

PowerGrip® GT®2 Belt Length Correction Factors
Pitch/Length
Designation
2000-20M
2500-20M
3400-20M
3800-20M

No. of
Teeth
100
125
170
190

Correction
Factor
0.80
0.85
0.95
1.00

Pitch/Length
Designation
4200-20M
4600-20M
5000-20M
5200-20M

R

No. of
Teeth
210
230
250
260

Correction
Factor
1.00
1.00
1.05
1.05

Pitch/Length
Designation
5400-20M
5600-20M
5800-20M
6000-20M

No. of
Teeth
270
280
290
300

Correction
Factor
1.05
1.05
1.10
1.10

The Driving Force in Power Transmission.

Pitch/Length
Designation
6200-20M
6400-20M
6600-20M

No. of
Teeth
310
320
330

Correction
Factor
1.10
1.10
1.10

Page 57

®

®

20M PowerGrip GT 2 Power Rating Table — 340mm Belt Width
RPM
of
Faster
Shaft
*10
*20
*30
*40
*50
*60
*80
*100
*150
*200
*300
*400
*500
+*600
+730
+800
+870
+970
+1170
+1200
+1460
+1600
+1750

Base Rated Horsepower For Small Sprocket
(Number of Grooves and Pitch Diameter, Inches)
52
13.033
14.0
28.0
41.9
55.9
69.9
83.9
111.8
139.8
209.5
279.2
409.4
512.0
606.1
692.8
795.1
845.7
893.0
955.2
1060.1
1073.5
1164.0
1192.5
1206.4

56
14.036
15.1
30.1
45.2
60.2
75.3
90.3
120.4
150.5
225.6
300.5
433.9
541.8
640.2
730.3
835.8
887.3
935.2
997.3
1098.4
1110.9
1187.8
1204.9
1203.1

60
15.038
15.9
31.9
47.8
63.7
79.6
95.5
127.4
159.2
238.6
317.8
457.8
570.8
673.3
766.4
874.4
926.6
974.5
1035.7
1131.2
1142.4
1202.1
1205.3

64
16.041
16.8
33.5
50.3
67.1
83.8
100.6
134.1
167.6
251.1
334.4
481.3
599.0
705.3
801.2
911.1
963.4
1011.0
1070.4
1158.3
1167.8
1206.4

68
17.043
17.6
35.2
52.8
70.4
88.0
105.5
140.7
175.8
263.5
350.8
504.3
626.6
736.3
834.5
945.7
997.8
1044.5
1101.4
1179.5
1186.9
1200.4

72
18.046
18.4
36.8
55.2
73.6
92.0
110.4
147.2
183.9
275.6
366.9
526.8
653.4
766.3
866.5
978.3
1029.8
1075.0
1128.6
1194.6
1199.6

80
20.051
20.0
40.0
60.0
80.0
100.0
120.0
159.9
199.8
299.3
398.3
570.6
705.1
823.4
926.3
1037.3
1086.0
1126.9
1171.1
1206.0
1204.7

90
22.557
21.9
43.9
65.8
87.7
109.7
131.6
175.4
219.1
328.0
436.3
623.0
766.2
889.5
993.4
1099.2
1141.8
1174.0

* Refer to Page 15 for additional Service Factors for speeds of 600 rpm or less.
+ Drives within this speed range may generate an objectionable noise level. This can be reduced by using commercially available acoustical damping
material in the belt guard. Contact Gates for recommendations on any drive to be installed in a noise sensitive area.

Corrected Horsepower Rating = [Base Rating] × [Belt Length Correction Factor]

PowerGrip® GT®2 Belt Length Correction Factors
Pitch/Length
Designation
2000-20M
2500-20M
3400-20M
3800-20M

Page 58

No. of
Teeth
100
125
170
190

Correction
Factor
0.80
0.85
0.95
1.00

Pitch/Length
Designation
4200-20M
4600-20M
5000-20M
5200-20M

No. of
Teeth
210
230
250
260

Correction
Factor
1.00
1.00
1.05
1.05

R

Pitch/Length
Designation
5400-20M
5600-20M
5800-20M
6000-20M

No. of
Teeth
270
280
290
300

Correction
Factor
1.05
1.05
1.10
1.10

The Gates Rubber Company

Pitch/Length
Designation
6200-20M
6400-20M
6600-20M

No. of
Teeth
310
320
330

Correction
Factor
1.10
1.10
1.10

®

PowerGrip Timing Belt Drives

PowerGrip Timing Belt drives operate with the molded
teeth of the belt designed to make positive engagement
with the matching grooves on the pulleys. Gates
PowerGrip belts have helically-wound fiberglass
tension members embedded in a Neoprene body with
the belt teeth faced with a tough wear-resistant nylon
fabric.

XL Pitch (.200) – Reference Dimensions
5.08mm
.200 in.

The three principal dimensions, in inches, shown
below, are used to specify a Timing belt.
330

XL

025

33.0∅ pitch
length

.200∅ pitch

.25∅ wide

Belt pitch is the distance in inches between two
adjacent tooth centers as measured on the pitch line of
the belt. Belt pitch length is the total length
(circumference) in inches as measured along the pitch
line. The theoretical pitch line of a Timing belt lies
within the tensile member.

2.29mm 1.27mm
.090 in. .050 in.

L Pitch (.375") – Reference Dimensions
9.53mm
.375 in.

Pitch (circular pitch)
Belt
Pitch
Line

3.43mm
.135 in.

1.91mm
.075 in.

side
Out ter
e
Diam

Pitch
Diam
ete

r

H Pitch (.500") – Reference Dimensions
Sprocket
Pitch
Circle

The three principal dimensions used to specify a pulley
number of grooves, pitch and belt width in inches are
shown below.
20

XL

025

Number of grooves

Pitch

Belt Width ( 14 ∅)

R

12.70mm
.500 in.

3.94mm
.155 in.

The Driving Force in Power Transmission.

2.29mm
.090 in.

Page 59

®

Gates PowerGrip Timing Belts
Stock Belts
0.200″ pitch extra light
(XL)

0.375″ pitch light
(L)

Available in
″ and 3 8″ widths

1

1
4

Length and Pitch
Designation
50XL
60XL
70XL
80XL
90XL
100XL
110XL
120XL
130XL
140XL
150XL
160XL
170XL
180XL
190XL
200XL
210XL
220XL
230XL
240XL
250XL
260XL
280XL
290XL
300XL
310XL
330XL
340XL
350XL
370XL
380XL
390XL
400XL
420XL
450XL
460XL
480XL
500XL
570XL
630XL
770XL

Pitch Length
(in)
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
26.0
28.0
29.0
30.0
31.0
33.0
34.0
35.0
37.0
38.0
39.0
40.0
42.0
45.0
46.0
48.0
50.0
57.0
63.0
77.0

Number
of Teeth
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
140
145
150
155
165
170
175
185
190
195
200
210
225
230
240
250
285
315
385

2

Available in
″, 3 4″ and 1″ widths

Length and Pitch
Designation
124L
135L
150L
165L
187L
195L
210L
225L
240L
255L
270L
285L
300L
315L
322L
345L
367L
390L
420L
450L
480L
510L
540L
600L
660L
817L
900L

Pitch Length
(in)
12.375
12.5
15.0
16.5
18.75
19.50
21.0
22.5
24.0
25.5
27.0
28.5
30.0
31.5
32.25
34.5
36.75
39.0
42.0
45.0
48.0
51.0
54.0
60.0
66.0
81.75
90.0

Number
of Teeth
33
36
40
44
50
52
56
60
64
68
72
76
80
84
86
92
98
104
112
120
128
136
144
160
176
218
240

0.500″ pitch heavy
(H)
3

4

Available in
″, 1″, 1 1 2″ 2″ and 3″ widths

Length and Pitch
Designation
210H
220H
230H
240H
270H
300H
320H
330H
340H
350H
360H
370H
390H
400H
410H
420H
450H
480H
490H
510H
540H
560H
570H
585H
600H
630H
645H
660H
700H
730H
750H
780H
800H
820H
840H
850H
900H
960H
1000H
1100H
1140H
1250H
1400H
1550H
1700H

Pitch Length Number
(in)
of Teeth
21.0
42
22.0
44
23.0
46
24.0
48
27.0
54
30.0
60
32.0
64
33.0
66
34.0
68
35.0
70
36.0
72
37.0
74
39.0
78
40.0
80
41.0
82
42.0
84
45.0
90
48.0
96
49.0
98
51.0
102
54.0
108
56.0
112
57.0
114
58.5
117
60.0
120
63.0
126
64.5
129
66.0
132
70.0
140
73.0
146
75.0
150
78.0
156
80.0
160
82.0
164
84.0
168
85.0
170
90.9
180
96.0
192
100.0
200
110.0
220
114.0
228
125.0
250
140.0
280
155.0
310
170.0
340

NOTE: Belt lengths other than those shown may be available as a made-to-order item. Contact your local Gates representative for details.

Page 60

R

The Gates Rubber Company

XL, 0.200″ Pitch Belts

Center Distance, Inches

Key to Horsepower Correction Factor

=1.0

190XL
P.L. 19.00
95 Teeth

200XL
P.L. 20.00
100 Teeth

210XL
P.L. 21.00
105 Teeth

220XL
P.L. 22.00
110 Teeth

230XL
P.L. 23.00
115 Teeth

240XL
P.L. 24.00
120 Teeth

250XL
P.L. 25.00
125 Teeth

260XL
P.L. 26.00
130 Teeth

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.048
1.050
1.067
1.067
1.071
1.071
1.091
1.091
1.100
1.100
1.111
1.125
1.143
1.143
1.143
1.167
1.167
1.167
1.200
1.200
1.200
1.200
1.222
1.250
1.250
1.250
1.273
1.273
1.286
1.286
1.313
1.333
1.333
1.333
1.333
1.333
1.333

180XL
P.L. 18.00
90 Teeth

0.637
0.700
0.764
0.891
0.955
1.019
1.146
1.273
1.337
1.401
1.528
1.783
1.910
1.401
1.337
1.019
2.037
0.955
1.910
0.764
1.528
0.700
1.401
1.273
1.146
1.019
1.528
2.037
0.891
1.337
1.783
0.764
1.146
1.528
2.292
1.401
0.955
1.273
1.910
0.891
1.783
1.146
2.292
1.337
1.019
1.273
1.528
1.783
2.037
2.546

170XL
P.L. 17.00
85 Teeth

10
11
12
14
15
16
18
20
21
22
24
28
30
22
21
16
32
15
30
12
24
11
22
20
18
16
24
32
14
21
28
12
18
24
36
22
15
20
30
14
28
18
36
21
16
20
24
28
32
40

160XL
P.L. 16.00
80 Teeth

0.637
0.700
0.764
0.891
0.955
1.019
1.146
1.273
1.337
1.401
1.528
1.783
1.910
1.337
1.273
0.955
1.910
0.891
1.783
0.700
1.401
0.637
1.273
1.146
1.019
0.891
1.337
1.783
0.764
1.146
1.528
0.637
0.955
1.273
1.910
1.146
0.764
1.019
1.528
0.700
1.401
0.891
1.783
1.019
0.764
0.955
1.146
1.337
1.528
1.910

150XL
P.L. 15.00
75 Teeth

10
11
12
14
15
16
18
20
21
22
24
28
30
21
20
15
30
14
28
11
22
10
20
18
16
14
21
28
12
18
24
10
15
20
30
18
12
16
24
11
22
14
28
16
12
15
18
21
24
30

140XL
P.L. 14.00
70 Teeth

3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3293
3286
3234
3234
3220
3220
3163
3163
3136
3136
3105
3067
3019
3019
3019
2957
2957
2957
2875
2875
2875
2875
2823
2760
2760
2760
2711
2711
2683
2683
2629
2588
2588
2588
2588
2588
2588

130XL
P.L. 13.00
65 Teeth

1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1670
1667
1641
1641
1633
1633
1604
1604
1591
1591
1575
1556
1531
1531
1531
1500
1500
1500
1458
1458
1458
1458
1432
1400
1400
1400
1375
1375
1361
1361
1333
1313
1313
1313
1313
1313
1313

120XL
P.L. 12.00
60 Teeth

1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1107
1105
1088
1088
1083
1083
1063
1063
1055
1055
1044
1031
1015
1015
1015
994
994
994
967
967
967
967
949
928
928
928
911
911
902
902
884
870
870
870
870
870
870

110XL
P.L. 11.00
55 Teeth

Pitch
Pitch
3450 No. of diam. No. of diam. Speed
RPM grooves inches grooves inches Ratio

100XL
P.L. 10.00
50 Teeth

Page 61

1750
RPM

90XL
P.L. 9.00
45 Teeth

The Driving Force in Power Transmission.

1160
RPM

80XL
P.L. 8.00
40 Teeth

DriveN

70XL
P.L. 7.00
35 Teeth

Sprocket Combinations
DriveR

2.50
2.40
2.30
2.10
2.00
1.90
1.70

3.00
2.90
2.80
2.60
2.50
2.40
2.20
2.00
1.90
1.80

3.50
3.40
3.30
3.10
3.00
2.90
2.70
2.50
2.40
2.30
2.10

4.00
3.90
3.80
3.60
3.50
3.40
3.20
3.00
2.90
2.80
2.60
2.20

1.95

1.85
1.95
2.45

2.35
2.45
2.95

2.85
2.95
3.45

1.55

2.05

2.55

3.05

3.55

1.85

2.35

2.85

1.95

2.45

1.50

1.60
1.80
2.00

2.95
1.90
2.10
2.30
2.50

3.35
2.20
3.45
2.40
2.60
2.80
3.00
2.25

3.85
2.70
3.95
2.90
3.10
3.30
3.50
2.75

1.70

2.20

2.70
2.05

3.20
2.55

1.90

2.40
1.85

2.90
2.35
1.80

3.40
2.85
2.30

3.70
3.05
2.40
3.90
3.35
2.80

4.50
4.40
4.30
4.10
4.00
3.90
3.70
3.50
3.40
3.30
3.10
2.70
2.50
3.35
3.45
3.95
2.40
4.05
2.60
4.35
3.20
4.45
3.40
3.60
3.80
4.00
3.25
2.50
4.20
3.55
2.90
4.40
3.85
3.30

1.65

2.15
1.70

2.00
2.65
2.20

2.50
3.15
2.70

1.75

2.25

2.75

3.25
1.99
2.90

5.00
4.90
4.80
4.60
4.50
4.40
4.20
4.00
3.90
3.80
3.60
3.20
3.00
3.85
3.95
4.45
2.90
4.55
3.10
4.85
3.70
4.95
3.90
4.10
4.30
4.50
3.75
3.00
4.70
4.05
3.40
4.90
4.35
3.80
2.69
4.00
4.65
4.20
3.29
4.75
3.49
4.40
2.79
4.15
4.60
4.25
3.90
3.54
3.19
2.48

5.50
5.40
5.30
5.10
5.00
4.90
4.70
4.50
4.40
4.30
4.10
3.70
3.50
4.35
4.45
4.95
3.40
5.05
3.60
5.35
4.20
5.45
4.40
4.60
4.80
5.00
4.25
3.50
5.20
4.55
3.90
5.40
4.85
4.30
3.19
4.50
5.15
4.70
3.79
5.25
3.99
4.90
3.29
4.65
5.10
4.75
4.40
4.04
3.69
2.98

6.00
5.90
5.80
5.60
5.50
5.40
5.20
5.00
4.90
4.80
4.60
4.20
4.00
4.85
4.95
5.45
3.90
5.55
4.10
5.85
4.70
5.95
4.90
5.10
5.30
5.50
4.75
4.00
5.70
5.05
4.40
5.90
5.35
4.80
3.69
5.00
5.65
5.20
4.30
5.75
4.50
5.40
3.79
5.15
5.60
5.25
4.90
4.54
4.19
3.49

6.50
6.40
6.30
6.10
6.00
5.90
5.70
5.50
5.40
5.30
5.10
4.70
4.50
5.35
5.45
5.95
4.40
6.05
4.60
6.35
5.20
6.45
5.40
5.60
5.80
6.00
5.25
4.50
6.20
5.55
4.90
6.40
5.85
5.30
4.20
5.50
6.15
5.70
4.80
6.25
5.00
5.90
4.29
5.65
6.10
5.75
5.40
5.04
4.69
3.99

7.00
6.90
6.80
6.60
6.50
6.40
6.20
6.00
5.90
5.80
5.60
5.20
5.00
5.85
5.95
6.45
4.90
6.55
5.10
6.85
5.70
6.95
5.90
6.10
6.30
6.50
5.75
5.00
6.70
6.05
5.40
6.90
6.35
5.80
4.70
6.00
6.65
6.20
5.30
6.75
5.50
6.40
4.79
6.15
6.60
6.25
5.90
5.55
5.19
4.49

7.50
7.40
7.30
7.10
7.00
6.90
6.70
6.50
6.40
6.30
6.10
5.70
5.50
6.35
6.45
6.95
5.40
7.05
5.60
7.35
6.20
7.45
6.40
6.60
6.80
7.00
6.25
5.50
7.20
6.55
5.90
7.40
6.85
6.30
5.20
6.50
7.15
6.70
5.80
7.25
6.00
6.90
5.29
6.65
7.10
6.75
6.40
6.05
5.69
4.99

8.00
7.90
7.80
7.60
7.50
7.40
7.20
7.00
6.90
6.80
6.60
6.20
6.00
6.85
6.95
7.45
5.90
7.55
6.10
7.85
6.70
7.95
6.90
7.10
7.30
7.50
6.75
6.00
7.70
7.05
6.40
7.90
7.35
6.80
5.70
7.00
7.65
7.20
6.30
7.75
6.50
7.40
5.79
7.15
7.60
7.25
6.90
6.55
6.19
5.49

8.50
8.40
8.30
8.10
8.00
7.90
7.70
7.50
7.40
7.30
7.10
6.70
6.50
7.35
7.45
7.95
6.40
8.05
6.60
8.35
7.20
8.45
7.40
7.60
7.80
8.00
7.25
6.50
8.20
7.55
6.90
8.40
7.85
7.30
6.20
7.50
8.15
7.70
6.80
8.25
7.00
7.90
6.29
7.65
8.10
7.75
7.40
7.05
6.70
5.99

9.00
8.90
8.80
8.60
8.50
8.40
8.20
8.00
7.90
7.80
7.60
7.20
7.00
7.85
7.95
8.45
6.90
8.55
7.10
8.85
7.70
8.95
7.90
8.10
8.30
8.50
7.75
7.00
8.70
8.05
7.40
8.90
8.35
7.80
6.70
8.00
8.65
8.20
7.30
8.75
7.50
8.40
6.79
8.15
8.60
8.25
7.90
7.55
7.20
6.49

9.50
9.40
9.30
9.10
9.00
8.90
8.70
8.50
8.40
8.30
8.10
7.70
7.50
8.35
8.45
8.95
7.40
9.05
7.60
9.35
8.20
9.45
8.40
8.60
8.80
9.00
8.25
7.50
9.20
8.55
7.90
9.40
8.85
8.30
7.20
8.50
9.15
8.70
7.80
9.25
8.00
8.90
7.30
8.65
9.10
8.75
8.40
8.05
7.70
6.99

10.00
9.90
9.80
9.60
9.50
9.40
9.20
9.00
8.90
8.80
8.60
8.20
8.00
8.85
8.95
9.45
7.90
9.55
8.10
9.85
8.70
9.95
8.90
9.10
9.30
9.50
8.75
8.00
9.70
9.05
8.40
9.90
9.35
8.80
7.70
9.00
9.65
9.20
8.30
9.75
8.50
9.40
7.80
9.15
9.60
9.25
8.90
8.55
8.20
7.49

10.50
10.40
10.30
10.10
10.00
9.90
9.70
9.50
9.40
9.30
9.10
8.70
8.50
9.35
9.45
9.95
8.40
10.05
8.60
10.35
9.20
10.45
9.40
9.60
9.80
10.00
9.25
8.50
10.20
9.55
8.90
10.40
9.85
9.30
8.20
9.50
10.15
9.70
8.80
10.25
9.00
9.90
8.30
9.65
10.10
9.75
9.40
9.05
8.70
7.99

11.00
10.90
10.80
10.60
10.50
10.40
10.20
10.00
9.90
9.80
9.60
9.20
9.00
9.85
9.95
10.45
8.90
10.55
9.10
10.85
9.70
10.95
9.90
10.10
10.30
10.50
9.75
9.00
10.70
10.05
9.40
10.90
10.35
9.80
8.70
10.00
10.65
10.20
9.30
10.75
9.50
10.40
8.80
10.15
10.60
10.25
9.90
9.55
9.20
8.49

11.50
11.40
11.30
11.10
11.00
10.90
10.70
10.50
10.40
10.30
10.10
9.70
9.50
10.35
10.45
10.95
9.40
11.05
9.60
11.35
10.20
11.45
10.40
10.60
10.80
11.00
10.25
9.50
11.20
10.55
9.90
11.40
10.85
10.30
9.20
10.50
11.15
10.70
9.80
11.25
10.00
10.90
9.30
10.65
11.10
10.75
10.40
10.05
9.70
8.99

12.00
11.90
11.80
11.60
11.50
11.40
11.20
11.00
10.90
10.80
10.60
10.20
10.00
10.85
10.95
11.45
9.90
11.55
10.10
11.85
10.70
11.95
10.90
11.10
11.30
11.50
10.75
10.00
11.70
11.05
10.40
11.90
11.35
10.80
9.70
11.00
11.65
11.20
10.30
11.75
10.50
11.40
9.80
11.15
11.60
11.25
10.90
10.55
10.20
9.49

60XL
P.L. 6.00
30 Teeth

DriveN Speed
For motor speed of

Drive Selection Table

2.00
1.90
1.80
1.60
1.50
1.40

1.45

1.39

1.90

2.40

1.59

1.64
2.10
1.74

2.14
2.60
2.24
1.89

=0.8

=0.6

2.64
3.10
2.75
2.39
2.04

3.00
3.65
3.20
2.29
3.75
2.49
3.40
3.15
3.60
3.25
2.89
2.54
2.19

3.50
4.15
3.70
2.79
4.25
2.99
3.90
2.29
3.65
4.10
3.75
3.39
3.04
2.69

Center Distance, Inches

Key to Horsepower Correction Factor

=1.0

200XL
P.L. 20.00
100 Teeth

210XL
P.L. 21.00
105 Teeth

220XL
P.L. 22.00
110 Teeth

230XL
P.L. 23.00
115 Teeth

240XL
P.L. 24.00
120 Teeth

250XL
P.L. 25.00
125 Teeth

260XL
P.L. 26.00
130 Teeth

1.364
1.364
1.375
1.400
1.400
1.400
1.400
1.429
1.429
1.429
1.455
1.455
1.467
1.467
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.524
1.556
1.571
1.571
1.600
1.600
1.600
1.600
1.636
1.636
1.667
1.667
1.667
1.714
1.714
1.714
1.750
1.750
1.750
1.778
1.800
1.800
1.818
1.818
1.833
1.833
1.867

190XL
P.L. 19.00
95 Teeth

0.955
1.910
1.401
0.891
1.337
1.783
2.674
1.273
1.910
2.546
1.019
2.037
1.401
2.801
0.955
1.146
1.337
1.528
1.910
2.292
2.674
2.037
1.783
1.401
2.801
1.019
1.528
2.037
3.056
1.146
2.292
1.273
1.910
2.546
1.528
2.292
3.056
1.337
1.783
2.674
2.037
1.146
2.292
1.273
2.546
1.401
2.801
1.783

180XL
P.L. 18.00
90 Teeth

15
30
22
14
21
28
42
20
30
40
16
32
22
44
15
18
21
24
30
36
42
32
28
22
44
16
24
32
48
18
36
20
30
40
24
36
48
21
28
42
32
18
36
20
40
22
44
28

170XL
P.L. 17.00
85 Teeth

0.700
1.401
1.019
0.637
0.955
1.273
1.910
0.891
1.337
1.783
0.700
1.401
0.955
1.910
0.637
0.764
0.891
1.019
1.273
1.528
1.783
1.337
1.146
0.891
1.783
0.637
0.955
1.273
1.910
0.700
1.401
0.764
1.146
1.528
0.891
1.337
1.783
0.764
1.019
1.528
1.146
0.637
1.273
0.700
1.401
0.764
1.528
0.955

160XL
P.L. 16.00
80 Teeth

11
22
16
10
15
20
30
14
21
28
11
22
15
30
10
12
14
16
20
24
28
21
18
14
28
10
15
20
30
11
22
12
18
24
14
21
28
12
16
24
18
10
20
11
22
12
24
15

150XL
P.L. 15.00
75 Teeth

2530
2530
2509
2464
2464
2464
2464
2415
2415
2415
2372
2372
2352
2352
2300
2300
2300
2300
2300
2300
2300
2264
2218
2195
2195
2156
2156
2156
2156
2108
2108
2070
2070
2070
2013
2013
2013
1971
1971
1971
1941
1917
1917
1898
1898
1882
1882
1848

140XL
P.L. 14.00
70 Teeth

1283
1283
1273
1250
1250
1250
1250
1225
1225
1225
1203
1203
1193
1193
1167
1167
1167
1167
1167
1167
1167
1148
1125
1114
1114
1094
1094
1094
1094
1069
1069
1050
1050
1050
1021
1021
1021
1000
1000
1000
984
972
972
963
963
955
955
938

130XL
P.L. 13.00
65 Teeth

851
851
844
829
829
829
829
812
812
812
798
798
791
791
773
773
773
773
773
773
773
761
746
738
738
725
725
725
725
709
709
696
696
696
677
677
677
663
663
663
653
644
644
638
638
633
633
621

120XL
P.L. 12.00
60 Teeth

Pitch
Pitch
3450 No. of diam. No. of diam. Speed
RPM grooves inches grooves inches Ratio

110XL
P.L. 11.00
55 Teeth

1750
RPM

100XL
P.L. 10.00
50 Teeth

The Gates Rubber Company

1160
RPM

3.20

3.70
2.39
3.09
3.80
3.19
2.59

4.20
2.89
3.59
4.30
3.69
3.09

4.70
3.39
4.09
4.80
4.20
3.59

2.79

3.29
2.43

3.80
2.94

2.65

3.15

1.63

2.14

2.64

3.65
2.28
3.14

4.15
2.78
3.64

4.30
3.44
2.57
4.65
3.28
4.14

2.24
1.99
1.74

2.75
2.49
2.24
1.98

3.25
2.99
2.74
2.49
1.97

3.75
3.49
3.24
2.99
2.48

4.25
4.00
3.74
3.49
2.98
2.47

1.68

2.18

2.18
2.69

2.32
2.68
3.19

2.83
3.18
3.69

4.75
4.50
4.24
3.99
3.49
2.98
2.46
3.33
3.69
4.19

1.69

2.19

2.69
2.03

3.19
2.53
1.86

3.69
3.04
2.37

4.20
3.54
2.87

4.70
4.04
3.38

5.20
3.89
4.60
5.30
4.70
4.09
2.87
4.80
3.94
3.08
5.15
3.79
4.64
2.76
5.25
5.00
4.74
4.49
3.99
3.48
2.97
3.83
4.19
4.69
2.85
5.20
4.54
3.88

1.53

2.04

2.54

3.04

1.38

1.88

2.39

2.89
2.06

3.54
2.05
3.39
2.57

1.57

2.08

2.58

3.08
2.10

4.04
2.56
3.89
3.08
2.24
3.59
2.61

4.54
3.07
4.39
3.58
2.75
4.09
3.11

1.83

2.33
1.76

2.84
2.27

3.34
2.77

3.84
3.28

1.58

2.08

2.59

1.95
3.09

1.42

1.93

2.43

2.94

2.46
3.59
2.14
3.44

4.34
3.78
2.64
3.47
4.59
3.16
4.44
2.84
4.29
2.52
3.83

5.70
4.39
5.10
5.80
5.20
4.59
3.38
5.30
4.44
3.58
5.65
4.29
5.14
3.27
5.75
5.50
5.25
4.99
4.49
3.98
3.47
4.34
4.69
5.19
3.36
5.70
5.04
4.38
3.05
5.55
4.08
5.39
4.58
3.77
5.09
4.12
3.13
5.34
4.78
3.65
4.48
5.59
4.17
5.44
3.86
5.29
3.54
4.83

6.20
4.89
5.60
6.30
5.70
5.09
3.88
5.80
4.94
4.08
6.15
4.79
5.65
3.77
6.25
6.00
5.75
5.49
4.99
4.48
3.97
4.84
5.19
5.69
3.87
6.20
5.54
4.89
3.55
6.05
4.58
5.89
5.09
4.27
5.59
4.63
3.64
5.84
5.29
4.16
4.98
6.09
4.67
5.94
4.36
5.79
4.05
5.33

6.70
5.39
6.10
6.80
6.20
5.59
4.38
6.30
5.44
4.58
6.65
5.29
6.15
4.28
6.75
6.50
6.25
5.99
5.49
4.99
4.48
5.34
5.69
6.19
4.37
6.70
6.04
5.39
4.06
6.55
5.08
6.40
5.59
4.77
6.09
5.13
4.15
6.34
5.79
4.66
5.48
6.59
5.17
6.44
4.87
6.29
4.56
5.83

7.20
5.89
6.60
7.30
6.70
6.09
4.88
6.80
5.94
5.09
7.15
5.79
6.65
4.78
7.25
7.00
6.75
6.49
5.99
5.49
4.98
5.84
6.19
6.70
4.87
7.20
6.54
5.89
4.56
7.05
5.58
6.90
6.09
5.28
6.59
5.63
4.66
6.84
6.29
5.17
5.98
7.10
5.68
6.94
5.37
6.79
5.06
6.34

7.70
6.39
7.10
7.80
7.20
6.59
5.39
7.30
6.44
5.59
7.65
6.29
7.15
5.28
7.75
7.50
7.25
6.99
6.49
5.99
5.48
6.34
6.69
7.20
5.38
7.70
7.04
6.39
5.07
7.55
6.08
7.40
6.59
5.78
7.09
6.13
5.16
7.34
6.79
5.67
6.48
7.60
6.18
7.44
5.87
7.29
5.56
6.84

8.20
6.89
7.60
8.30
7.70
7.10
5.89
7.80
6.94
6.09
8.15
6.79
7.65
5.78
8.25
8.00
7.75
7.50
6.99
6.49
5.98
6.84
7.19
7.70
5.88
8.20
7.54
6.89
5.57
8.05
6.58
7.90
7.09
6.28
7.59
6.63
5.66
7.84
7.29
6.17
6.99
8.10
6.68
7.95
6.37
7.79
6.07
7.34

8.70
7.40
8.10
8.80
8.20
7.60
6.39
8.30
7.44
6.59
8.65
7.29
8.15
6.28
8.75
8.50
8.25
8.00
7.49
6.99
6.48
7.34
7.69
8.20
6.38
8.70
8.04
7.39
6.07
8.55
7.09
8.40
7.59
6.78
8.09
7.13
6.17
8.34
7.79
6.68
7.49
8.60
7.18
8.45
6.88
8.29
6.57
7.84

9.20
7.90
8.60
9.30
8.70
8.10
6.89
8.80
7.94
7.09
9.15
7.79
8.65
6.79
9.25
9.00
8.75
8.50
7.99
7.49
6.99
7.84
8.19
8.70
6.88
9.20
8.55
7.89
6.57
9.05
7.59
8.90
8.09
7.28
8.59
7.63
6.67
8.85
8.29
7.18
7.99
9.10
7.68
8.95
7.38
8.79
7.07
8.34

9.70
8.40
9.10
9.80
9.20
8.60
7.39
9.30
8.44
7.59
9.65
8.29
9.15
7.29
9.75
9.50
9.25
9.00
8.49
7.99
7.49
8.34
8.69
9.20
7.38
9.70
9.05
8.39
7.08
9.55
8.09
9.40
8.59
7.78
9.09
8.14
7.17
9.35
8.79
7.68
8.49
9.60
8.18
9.45
7.88
9.29
7.57
8.84

10.20
8.90
9.60
10.30
9.70
9.10
7.89
9.80
8.95
8.09
10.15
8.79
9.65
7.79
10.25
10.00
9.75
9.50
8.99
8.49
7.99
8.84
9.19
9.70
7.88
10.20
9.55
8.89
7.58
10.05
8.59
9.90
9.09
8.28
9.59
8.64
7.67
9.85
9.29
8.18
8.99
10.10
8.69
9.95
8.38
9.79
8.07
9.34

10.70
9.40
10.10
10.80
10.20
9.60
8.39
10.30
9.45
8.59
10.65
9.29
10.15
8.29
10.75
10.50
10.25
10.00
9.49
8.99
8.49
9.34
9.69
10.20
8.38
10.70
10.05
9.39
8.08
10.55
9.09
10.40
9.59
8.79
10.10
9.14
8.17
10.35
9.79
8.68
9.49
10.60
9.19
10.45
8.88
10.29
8.58
9.84

11.20
9.90
10.60
11.30
10.70
10.10
8.89
10.80
9.95
9.09
11.15
9.79
10.65
8.79
11.25
11.00
10.75
10.50
10.00
9.49
8.99
9.84
10.19
10.70
8.89
11.20
10.55
9.89
8.58
11.05
9.59
10.90
10.09
9.29
10.60
9.64
8.68
10.85
10.29
9.18
9.99
11.10
9.69
10.95
9.38
10.79
9.08
10.34

11.70
10.40
11.10
11.80
11.20
10.60
9.39
11.30
10.45
9.59
11.65
10.29
11.15
9.29
11.75
11.50
11.25
11.00
10.50
9.99
9.49
10.34
10.69
11.20
9.39
11.70
11.05
10.39
9.08
11.55
10.09
11.40
10.59
9.79
11.10
10.14
9.18
11.35
10.79
9.68
10.49
11.60
10.19
11.45
9.88
11.30
9.58
10.84

80XL
P.L. 8.00
40 Teeth

DriveN

90XL
P.L. 9.00
45 Teeth

Sprocket Combinations
DriveR

70XL
P.L. 7.00
35 Teeth

DriveN Speed
For motor speed of

Drive Selection Table
60XL
P.L. 6.00
30 Teeth

Page 62

XL, 0.200² Pitch Belts

1.70

2.20

2.70

1.80

1.59
2.30
1.69

2.09
2.80
2.19

2.59
3.30
2.69
2.08

1.79

2.29

2.14

1.64

1.74
1.49

1.77

=0.8

=0.6

2.28

2.78

3.28

2.97
4.09
2.65
3.94
2.33
3.79

1.80

2.31

2.82

3.32

5.05
3.57
4.89
4.08
3.26
4.59
3.62
2.62
4.84
4.28
3.15
3.98
5.09
3.66
4.94
3.35
4.79
3.03
4.33

XL, 0.200² Pitch Belts

Page 63

Key to Horsepower Correction Factor

=1.0

160XL
P.L. 16.00
80 Teeth

170XL
P.L. 17.00
85 Teeth

180XL
P.L. 18.00
90 Teeth

190XL
P.L. 19.00
95 Teeth

200XL
P.L. 20.00
100 Teeth

210XL
P.L. 21.00
105 Teeth

220XL
P.L. 22.00
110 Teeth

230XL
P.L. 23.00
115 Teeth

240XL
P.L. 24.00
120 Teeth

250XL
P.L. 25.00
125 Teeth

260XL
P.L. 26.00
130 Teeth

1.875
1.905
1.909
1.909
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.095
2.100
2.100
2.133
2.143
2.143
2.182
2.182
2.200
2.200
2.222
2.250
2.286
2.286
2.333
2.333
2.400
2.400
2.400
2.400
2.444
2.500
2.500
2.500
2.545
2.571
2.571
2.625
2.667
2.667
2.667
2.727
2.727

150XL
P.L. 15.00
75 Teeth

1.910
2.546
1.337
2.674
1.273
1.401
1.528
1.783
1.910
2.037
2.292
2.546
2.674
2.801
3.056
3.820
2.801
1.337
2.674
2.037
1.910
3.820
1.528
3.056
1.401
2.801
2.546
2.292
2.037
3.056
1.783
2.674
1.528
2.292
3.056
4.584
2.801
1.910
2.546
3.820
1.783
2.292
4.584
2.674
2.037
2.546
3.056
1.910
3.820

1.36

1.87

2.38

2.88

3.39

1.47

1.97
1.82
1.66

2.48
2.32
2.17
1.85

2.98
2.83
2.67
2.36
2.20
2.04

3.49
3.33
3.18
2.87
2.71
2.55
2.23

3.99
3.83
3.68
3.37
3.21
3.06
2.74
2.42
2.25

5.18
4.41
5.89
4.25
5.99
5.84
5.69
5.38
5.23
5.07
4.77
4.46
4.30
4.14
3.82

1.41

1.92

2.42

2.93

3.43

2.08
2.24

2.59
2.75

3.93
2.29
3.10
3.26

2.65
4.44
2.81
3.61
3.77

3.16
4.94
3.33
4.11
4.27

3.68
5.44
3.84
4.62
4.77

4.19
5.94
4.34
5.12
5.28

5.23
3.40
5.39
3.72
4.04
4.35
4.67
3.44
4.97
3.93
5.28
4.40
3.49

5.74
3.91
5.89
4.23
4.55
4.86
5.17
3.96
5.48
4.43
5.78
4.90
4.00

5.68
4.91
6.39
4.76
6.49
6.34
6.19
5.88
5.73
5.58
5.27
4.96
4.80
4.65
4.33
3.36
4.69
6.44
4.85
5.62
5.78
3.45
6.24
4.42
6.39
4.74
5.05
5.36
5.67
4.47
5.98
4.94
6.28
5.41
4.51

6.18
5.42
6.89
5.26
6.99
6.84
6.69
6.38
6.23
6.08
5.77
5.46
5.31
5.15
4.84
3.88
5.20
6.94
5.35
6.13
6.28
3.97
6.74
4.93
6.89
5.24
5.56
5.86
6.17
4.98
6.48
5.45
6.78
5.91
5.02

4.32
5.37
4.64
3.08
5.52
4.95

4.83
5.87
5.14
3.62
6.03
5.46

5.34
6.37
5.65
4.14
6.53
5.96

4.52
5.26
4.68
4.09
5.42
3.17

5.03
5.76
5.19
4.60
5.92
3.70

5.54
6.27
5.69
5.11
6.42
4.23

6.68
5.92
7.39
5.76
7.49
7.34
7.19
6.89
6.73
6.58
6.27
5.97
5.81
5.66
5.35
4.40
5.70
7.44
5.86
6.63
6.78
4.48
7.24
5.44
7.39
5.75
6.06
6.37
6.68
5.48
6.98
5.95
7.29
6.41
5.53
3.65
5.84
6.88
6.15
4.66
7.03
6.46
3.73
6.04
6.77
6.20
5.62
6.92
4.74

7.19
6.42
7.89
6.27
7.99
7.84
7.69
7.39
7.23
7.08
6.78
6.47
6.31
6.16
5.85
4.91
6.21
7.94
6.36
7.13
7.28
5.00
7.74
5.94
7.89
6.25
6.56
6.87
7.18
5.99
7.48
6.45
7.79
6.92
6.03
4.18
6.35
7.38
6.66
5.17
7.53
6.96
4.27
6.55
7.27
6.70
6.13
7.43
5.26

7.69
6.92
8.39
6.77
8.49
8.34
8.19
7.89
7.74
7.58
7.28
6.97
6.82
6.66
6.35
5.42
6.71
8.44
6.86
7.63
7.78
5.50
8.24
6.45
8.39
6.76
7.07
7.37
7.68
6.49
7.98
6.96
8.29
7.42
6.54
4.71
6.85
7.88
7.16
5.68
8.03
7.47
4.79
7.05
7.77
7.21
6.63
7.93
5.77

8.19
7.43
8.89
7.27
8.99
8.84
8.69
8.39
8.24
8.08
7.78
7.47
7.32
7.17
6.86
5.92
7.21
8.94
7.37
8.13
8.28
6.01
8.74
6.95
8.89
7.26
7.57
7.87
8.18
7.00
8.48
7.46
8.79
7.92
7.04
5.23
7.35
8.38
7.66
6.19
8.53
7.97
5.31
7.55
8.28
7.71
7.14
8.43
6.28

8.69
7.93
9.39
7.77
9.49
9.34
9.19
8.89
8.74
8.58
8.28
7.98
7.82
7.67
7.36
6.43
7.72
9.44
7.87
8.63
8.79
6.52
9.24
7.45
9.39
7.76
8.07
8.38
8.68
7.50
8.99
7.96
9.29
8.42
7.55
5.74
7.86
8.88
8.16
6.70
9.03
8.47
5.83
8.06
8.78
8.21
7.64
8.93
6.79

9.19
8.43
9.90
8.28
9.99
9.84
9.69
9.39
9.24
9.09
8.78
8.48
8.32
8.17
7.86
6.93
8.22
9.94
8.37
9.13
9.29
7.03
9.74
7.96
9.89
8.26
8.57
8.88
9.18
8.00
9.49
8.47
9.79
8.92
8.05
6.26
8.36
9.38
8.67
7.21
9.53
8.97
6.34
8.56
9.28
8.71
8.14
9.43
7.30

9.69
8.93
10.40
8.78
10.50
10.34
10.19
9.89
9.74
9.59
9.28
8.98
8.82
8.67
8.36
7.44
8.72
10.44
8.87
9.63
9.79
7.53
10.24
8.46
10.39
8.77
9.07
9.38
9.68
8.51
9.99
8.97
10.29
9.43
8.55
6.77
8.86
9.88
9.17
7.71
10.04
9.47
6.86
9.06
9.78
9.22
8.65
9.93
7.81

10.19
9.43
10.90
9.28
11.00
10.84
10.69
10.39
10.24
10.09
9.78
9.48
9.33
9.17
8.87
7.94
9.22
10.94
9.37
10.14
10.29
8.03
10.74
8.96
10.89
9.27
9.57
9.88
10.18
9.01
10.49
9.47
10.79
9.93
9.06
7.28
9.36
10.38
9.67
8.22
10.54
9.98
7.37
9.56
10.28
9.72
9.15
10.43
8.31

10.69
9.93
11.40
9.78
11.5
11.34
11.19
10.89
10.74
10.59
10.28
9.98
9.83
9.67
9.37
8.45
9.72
11.44
9.88
10.64
10.79
8.54
11.24
9.46
11.39
9.77
10.08
10.38
10.68
9.51
10.99
9.97
11.29
10.43
9.56
7.78
9.87
10.88
10.17
8.72
11.04
10.48
7.87
10.07
10.78
10.22
9.65
10.93
8.82

2.66

3.17
2.37
3.89

3.67
2.89
4.39
2.72
4.49
4.34
4.18
3.87
3.72
3.56
3.25
2.93
2.77
2.61

4.18
3.40
4.89
3.24
4.99
4.84
4.68
4.38
4.22
4.07
3.76
3.44
3.28
3.12
2.79

4.68
3.90
5.39
3.75
5.49
5.34
5.19
4.88
4.73
4.57
4.26
3.95
3.79
3.63
3.31

1.70

2.21

2.72

3.22

3.73

4.23

1.86

2.37

2.87

3.38

3.88

2.12

2.31
2.64

2.50
2.83
3.15

1.93

2.45

2.96

2.26

2.76
1.83

3.27
2.35

3.46
2.38
3.77
2.87

4.38
2.69
3.02
3.34
3.66
2.39
3.97
2.90
4.28
3.38
2.43

4.73
2.88
4.88
3.21
3.53
3.85
4.16
2.92
4.47
3.41
4.78
3.89
2.96

1.81

2.33

2.84
2.06

2.25
3.35
2.59

2.78
3.86
3.11

3.30
4.36
3.62

3.81
4.87
4.13

1.98

2.49
1.87

3.00
2.40

3.51
2.92

4.01
3.43

4.52
3.94

5.02
4.44

1.68

2.21

2.73
2.10

2.46
3.24
2.63

1.85

2.37

2.89

3.40

2.98
3.75
3.15
2.52
3.90

3.50
4.25
3.66
3.05
4.41

4.01
4.76
4.17
3.57
4.91

1.74

=0.8

2.15

140XL
P.L. 14.00
70 Teeth

30
40
21
42
20
22
24
28
30
32
36
40
42
44
48
60
44
21
42
32
30
60
24
48
22
44
40
36
32
48
28
42
24
36
48
72
44
30
40
60
28
36
72
42
32
40
48
30
60

130XL
P.L. 13.00
65 Teeth

1.019
1.337
0.700
1.401
0.637
0.700
0.764
0.891
0.955
1.019
1.146
1.273
1.337
1.401
1.528
1.910
1.337
0.637
1.273
0.955
0.891
1.783
0.700
1.401
0.637
1.273
1.146
1.019
0.891
1.337
0.764
1.146
0.637
0.955
1.273
1.910
1.146
0.764
1.019
1.528
0.700
0.891
1.783
1.019
0.764
0.955
1.146
0.700
1.401

120XL
P.L. 12.00
60 Teeth

16
21
11
22
10
11
12
14
15
16
18
20
21
22
24
30
21
10
20
15
14
28
11
22
10
20
18
16
14
21
12
18
10
15
20
30
18
12
16
24
11
14
28
16
12
15
18
11
22

100XL
P.L. 10.00
50 Teeth

1840
1811
1807
1807
1725
1725
1725
1725
1725
1725
1725
1725
1725
1725
1725
1725
1647
1643
1643
1617
1610
1610
1581
1581
1568
1568
1553
1533
1509
1509
1479
1479
1438
1438
1438
1438
1411
1380
1380
1380
1355
1342
1342
1314
1294
1294
1294
1265
1265

90XL
P.L. 9.00
45 Teeth

933
919
917
917
875
875
875
875
875
875
875
875
875
875
875
875
835
833
833
820
817
817
802
802
795
795
788
778
766
766
750
750
729
729
729
729
716
700
700
700
688
681
681
667
656
656
656
642
642

80XL
P.L. 8.00
40 Teeth

619
609
608
608
580
580
580
580
580
580
580
580
580
580
580
580
554
552
552
544
541
541
532
532
527
527
522
516
508
508
497
497
483
483
483
483
475
464
464
464
456
451
451
442
435
435
435
425
425

Pitch
Pitch
3450 No. of diam. No. of diam. Speed
RPM grooves inches grooves inches Ratio

70XL
P.L. 7.00
35 Teeth

1750
RPM

DriveN

110XL
P.L. 11.00
55 Teeth

The Driving Force in Power Transmission.

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

60XL
P.L. 6.00
30 Teeth

DriveN Speed
For motor speed of

Drive Selection Table

=0.6

Key to Horsepower Correction Factor

=1.0

240XL
P.L. 24.00
120 Teeth

250XL
P.L. 25.00
125 Teeth

260XL
P.L. 26.00
130 Teeth

4.41
5.57
4.57
4.73
3.21
5.31
4.45
5.46
5.04
4.61
4.17
3.25

4.92
6.07
5.08
5.24
3.74
5.81
4.96
5.97
5.55
5.12
4.69
3.78

5.43
6.57
5.58
5.74
4.27
6.31
5.47
6.47
6.05
5.63
5.20
4.31
3.34
5.52
6.36
5.24
6.10
3.42
5.83
4.39
5.29
3.46
5.72
6.14
3.50
5.88
5.61
4.48
5.77
5.92
5.65
5.38
4.52
3.58
5.81
4.56
5.42
5.70
3.66
5.47
3.69
4.65
3.73
4.69
4.73
3.81
3.85
3.89

5.93
7.08
6.09
6.25
4.79
6.82
5.98
6.97
6.56
6.14
5.71
4.83
3.90
6.02
6.86
5.75
6.60
3.98
6.34
4.92
5.80
4.02
6.23
6.65
4.06
6.38
6.12
5.00
6.27
6.43
6.16
5.89
5.04
4.14
6.32
5.09
5.93
6.21
4.22
5.98
4.26
5.17
4.30
5.21
5.26
4.38
4.42
4.45

6.44
7.58
6.59
6.75
5.30
7.32
6.48
7.47
7.06
6.64
6.22
5.35
4.43
6.53
7.37
6.26
7.11
4.52
6.84
5.43
6.31
4.56
6.73
7.15
4.60
6.89
6.62
5.52
6.78
6.93
6.67
6.40
5.56
4.68
6.82
5.61
6.44
6.71
4.76
6.49
4.80
5.69
4.84
5.74
5.78
4.92
4.97
5.01

6.94
8.08
7.10
7.25
5.82
7.82
6.99
7.97
7.56
7.14
6.72
5.86
4.96
7.04
7.87
6.77
7.61
5.05
7.35
5.95
6.81
5.09
7.24
7.65
5.13
7.39
7.13
6.04
7.28
7.44
7.17
6.90
6.08
5.21
7.33
6.12
6.95
7.22
5.30
6.99
5.34
6.21
5.38
6.25
6.30
5.46
5.50
5.54

7.45
8.58
7.60
7.76
6.33
8.32
7.49
8.48
8.06
7.65
7.23
6.37
5.49
7.54
8.37
7.27
8.11
5.57
7.85
6.46
7.32
5.61
7.74
8.16
5.66
7.90
7.63
6.55
7.79
7.94
7.68
7.41
6.59
5.74
7.83
6.64
7.46
7.72
5.82
7.50
5.87
6.73
5.91
6.77
6.81
5.99
6.03
6.08

7.95
9.08
8.10
8.26
6.84
8.83
8.00
8.98
8.57
8.15
7.73
6.88
6.00
8.04
8.87
7.78
8.61
6.09
8.35
6.97
7.83
6.13
8.24
8.66
6.18
8.40
8.14
7.06
8.29
8.45
8.18
7.92
7.10
6.26
8.34
7.15
7.96
8.23
6.35
8.01
6.39
7.24
6.43
7.28
7.33
6.52
6.56
6.6

8.45
9.58
8.61
8.76
7.34
9.33
8.50
9.48
9.07
8.65
8.24
7.39
6.52
8.55
9.37
8.28
9.12
6.61
8.86
7.48
8.33
6.65
8.75
9.16
6.69
8.90
8.64
7.57
8.79
8.95
8.69
8.42
7.61
6.78
8.84
7.66
8.47
8.73
6.87
8.51
6.91
7.75
6.95
7.79
7.84
7.04
7.08
7.12

8.96
10.08
9.11
9.26
7.85
9.83
9.00
9.98
9.57
9.16
8.74
7.90
7.03
9.05
9.88
8.79
9.62
7.12
9.36
7.99
8.83
7.16
9.25
9.66
7.21
9.41
9.14
8.08
9.30
9.45
9.19
8.93
8.12
7.30
9.34
8.17
8.97
9.24
7.38
9.02
7.43
8.26
7.47
8.30
8.35
7.56
7.60
7.64

9.46
10.58
9.61
9.77
8.36
10.33
9.51
10.48
10.07
9.66
9.24
8.40
7.54
9.55
10.38
9.29
10.12
7.63
9.86
8.49
9.34
7.68
9.75
10.17
7.72
9.91
9.65
8.58
9.80
9.95
9.69
9.43
8.63
7.81
9.85
8.68
9.48
9.74
7.90
9.52
7.94
8.77
7.99
8.81
8.86
8.07
8.12
8.16

9.96
11.08
10.11
10.27
8.86
10.83
10.01
10.98
10.57
10.16
9.75
8.91
8.05
10.05
10.88
9.79
10.62
8.14
10.36
9.00
9.84
8.19
10.26
10.67
8.23
10.41
10.15
9.09
10.30
10.46
10.20
9.93
9.14
8.32
10.35
9.18
9.98
10.24
8.41
10.03
8.45
9.27
8.50
9.32
9.36
8.59
8.63
8.67

2.25

2.77

1.89

2.42
1.95

2.93
2.48
2.00

3.28
2.37
3.44
3.00
2.54

3.79
2.90
3.95
3.52
3.07
2.60

4.30
3.42
4.45
4.03
3.59
3.13

4.80
3.94
4.96
4.54
4.10
3.66

1.76

2.29

2.81

2.41
3.33

3.47
4.34
3.17
4.07

3.99
4.85
3.70
4.58

4.50
5.35
4.22
5.09

5.01
5.86
4.73
5.59

4.82
3.33
4.26

5.33
3.87
4.78

2.03

2.52

3.05

2.94
3.84
2.64
3.56

2.22

2.75

3.28

3.80

2.68

3.22

4.31
2.77
3.74

2.08
2.56

2.62
3.09

3.15
3.60

3.68
4.12

4.19
4.63

4.70
5.13

5.21
5.64

2.26

2.80
2.49

3.32
3.03

3.84
3.55

2.12
2.30
1.96

2.67
2.84
2.53
2.19

3.20
3.36
3.07
2.76

3.72
3.88
3.60
3.30

4.35
4.07
2.85
4.23
4.40
4.12
3.83
2.89

4.86
4.59
3.41
4.75
4.91
4.63
4.35
3.45

5.37
5.10
3.95
5.26
5.42
5.14
4.86
3.99

2.15

2.71

3.24

3.76

2.00

2.23
2.57

2.80
3.11

3.34
3.64

4.28
2.93
3.87
4.16

4.79
3.49
4.39
4.67

2.27

2.84

3.38

3.91

4.43

3.00

3.57

3.04
3.08

3.61
3.65

5.30
4.03
4.91
5.19
3.06
4.95
3.10
4.11
3.14
4.15
4.19
3.21
3.25
3.29

2.47

=0.6

3.90
5.07
4.06
4.22

1.72

1.99

=0.8

230XL
P.L. 23.00
115 Teeth

3.38
4.56
3.55
3.71

220XL
P.L. 22.00
110 Teeth

2.86
4.06
3.03
3.19

210XL
P.L. 21.00
105 Teeth

2.14

2.33
3.55
2.50
2.67

200XL
P.L. 20.00
100 Teeth

3.05

190XL
P.L. 19.00
95 Teeth

2.53

180XL
P.L. 18.00
90 Teeth

2.02

170XL
P.L. 17.00
85 Teeth

2.750
2.800
2.800
2.857
2.857
2.909
2.933
3.000
3.000
3.000
3.000
3.000
3.000
3.143
3.200
3.200
3.273
3.273
3.333
3.333
3.429
3.429
3.500
3.600
3.600
3.636
3.667
3.750
3.818
4.000
4.000
4.000
4.000
4.000
4.200
4.286
4.364
4.400
4.500
4.800
4.800
5.000
5.143
5.455
6.000
6.000
6.545
7.2

160XL
P.L. 16.00
80 Teeth

2.801
1.783
2.674
2.546
3.820
2.037
2.801
1.910
2.292
2.674
3.056
3.820
4.584
2.801
2.037
3.056
2.292
4.584
2.546
3.820
3.056
4.584
2.674
2.292
4.584
2.546
2.801
3.820
2.674
2.546
2.801
3.056
3.820
4.584
2.674
3.820
3.056
2.801
4.584
3.056
4.584
3.820
4.584
3.820
3.820
4.584
4.584
4.584

150XL
P.L. 15.00
75 Teeth

44
28
42
40
60
32
44
30
36
42
48
60
72
44
32
48
36
72
40
60
48
72
42
36
72
40
44
60
42
40
44
48
60
72
42
60
48
44
72
48
72
60
72
60
60
72
72
72

130XL
P.L. 13.00
65 Teeth

1.019
0.637
0.955
0.891
1.337
0.700
0.955
0.637
0.764
0.891
1.019
1.273
1.528
0.891
0.637
0.955
0.700
1.401
0.764
1.146
0.891
1.337
0.764
0.637
1.273
0.700
0.764
1.019
0.700
0.637
0.700
0.764
0.955
1.146
0.637
0.891
0.700
0.637
1.019
0.637
0.955
0.764
0.891
0.700
0.637
0.764
0.700
0.637

120XL
P.L. 12.00
60 Teeth

16
10
15
14
21
11
15
10
12
14
16
20
24
14
10
15
11
22
12
18
14
21
12
10
20
11
12
16
11
10
11
12
15
18
10
14
11
10
16
10
15
12
14
11
10
12
11
10

110XL
P.L. 11.00
55 Teeth

1255
1232
1232
1208
1208
1186
1176
1150
1150
1150
1150
1150
1150
1098
1078
1078
1054
1054
1035
1035
1006
1006
986
958
958
949
941
920
904
863
863
863
863
863
821
805
791
784
767
719
719
690
671
633
575
575
527
479

100XL
P.L. 10.00
50 Teeth

636
625
625
613
613
602
597
583
583
583
583
583
583
557
547
547
535
535
525
525
510
510
500
486
486
481
477
467
458
438
438
438
438
438
417
408
401
398
389
365
365
350
340
321
292
292
267
243

90XL
P.L. 9.00
45 Teeth

422
414
414
406
406
399
395
387
387
387
387
387
387
369
363
363
354
354
348
348
338
338
331
322
322
319
316
309
304
290
290
290
290
290
276
271
266
264
258
242
242
232
226
213
193
193
177
161

Pitch
Pitch
3450 No. of diam. No. of diam. Speed
RPM grooves inches grooves inches Ratio

80XL
P.L. 8.00
40 Teeth

1750
RPM

DriveN

140XL
P.L. 14.00
70 Teeth

The Gates Rubber Company

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

70XL
P.L. 7.00
35 Teeth

DriveN Speed
For motor speed of

Drive Selection Table
60XL
P.L. 6.00
30 Teeth

Page 64

XL, 0.200² Pitch Belts

=0.4

=0.2

L, 0.375² Pitch Belts

Key to Horsepower Correction Factor

=1.0

322L
P.L. 32.25
86 Teeth

345L
P.L. 34.50
92 Teeth

367L
P.L. 36.75
98 Teeth

390L
P.L. 39.00
104 Teeth

420L
P.L. 42.00
112 Teeth

450L
P.L. 45.00
120 Teeth

480L
P.L. 48.00
128 Teeth

510L
P.L. 51.00
136 Teeth

540L
P.L. 54.00
144 Teeth

600L
P.L. 60.00
160 Teeth

1.194
1.432
1.671
1.910
2.029
2.149
2.268
2.387
2.507
2.626
2.865
3.104
3.342
3.581
3.820
4.297
4.775
5.252
5.730
2.626
2.507
2.387
2.268
2.149
2.029
3.820
3.581
3.342
3.104
2.865
5.730
2.626
5.252
2.507
2.387
4.775
2.268
2.149
4.297
1.910
2.865
3.820
3.581
2.626
1.671
2.507
3.342

300L
P.L. 30.00
80 Teeth

10
12
14
16
17
18
19
20
21
22
24
26
28
30
32
36
40
44
48
22
21
20
19
18
17
32
30
28
26
24
48
22
44
21
20
40
19
18
36
16
24
32
30
22
14
21
28

285L
P.L. 28.50
76 Teeth

1.194
1.432
1.671
1.910
2.029
2.149
2.268
2.387
2.507
2.626
2.865
3.104
3.342
3.581
3.820
4.297
4.775
5.252
5.730
2.507
2.387
2.268
2.149
2.029
1.910
3.581
3.342
3.104
2.865
2.626
5.252
2.387
4.775
2.268
2.149
4.297
2.029
1.910
3.820
1.671
2.507
3.342
3.104
2.268
1.432
2.149
2.865

270L
P.L. 27.00
72 Teeth

10
12
14
16
17
18
19
20
21
22
24
26
28
30
32
36
40
44
48
21
20
19
18
17
16
30
28
26
24
22
44
20
40
19
18
36
17
16
32
14
21
28
26
19
12
18
24

255L
P.L. 25.50
68 Teeth

3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3293
3286
3278
3268
3258
3247
3234
3220
3204
3185
3163
3163
3136
3136
3121
3105
3105
3087
3067
3067
3019
3019
3019
2990
2980
2957
2957
2957

240L
P.L. 24.00
64 Teeth

1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1670
1667
1663
1658
1653
1647
1641
1633
1625
1615
1604
1604
1591
1591
1583
1575
1575
1566
1556
1556
1531
1531
1531
1517
1511
1500
1500
1500

Speed
Ratio

225L
P.L. 22.50
60 Teeth

1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1107
1105
1102
1099
1096
1092
1088
1083
1077
1071
1063
1063
1055
1055
1050
1044
1044
1038
1031
1031
1015
1015
1015
1005
1002
994
994
994

Pitch
Pitch
No. of diam. No. of diam.
grooves inches grooves inches

210L
P.L. 21.00
56 Teeth

3450
RPM

187L
P.L. 18.75
50 Teeth

1750
RPM

DriveN

150L
P.L. 15.00
40 Teeth

The Driving Force in Power Transmission.

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

124L
P.L. 12.375
33 Teeth

DriveN Speed
For motor speed of

Drive Selection Table

4.31
3.94
3.56
3.19
3.00
2.81
2.62

5.62
5.25
4.88
4.50
4.31
4.12
3.94
3.75
3.56
3.38

7.50
7.13
6.75
6.37
6.19
6.00
5.81
5.63
5.44
5.25
4.87
4.50
4.13

8.62
8.25
7.88
7.50
7.31
7.12
6.94
6.75
6.56
6.38
6.00
5.62
5.25
4.87
4.50

9.37
9.00
8.63
8.25
8.06
7.87
7.69
7.50
7.31
7.13
6.75
6.37
6.00
5.62
5.25

10.12
9.75
9.38
9.00
8.81
8.62
8.44
8.25
8.06
7.88
7.50
7.12
6.75
6.37
6.00
5.25

10.87
10.50
10.13
9.75
9.56
9.37
9.19
9.00
8.81
8.63
8.25
7.87
7.50
7.12
6.75
6.00
5.25

11.62
11.25
10.88
10.50
10.31
10.12
9.94
9.75
9.56
9.38
9.00
8.62
8.25
7.87
7.50
6.75
6.00

12.37
12.00
11.63
11.25
11.06
10.87
10.69
10.50
10.31
10.13
9.75
9.37
9.00
8.62
8.25
7.50
6.75
6.00

13.12
12.75
12.38
12.00
11.81
11.62
11.44
11.25
11.06
10.88
10.50
10.12
9.75
9.37
9.00
8.25
7.50
6.75

3.47
3.66
3.84
4.03
4.22
4.41

5.34
5.53
5.72
5.91
6.09
6.28

3.19

3.94
4.31
4.69
5.06

6.47
6.66
6.84
7.03
7.22
7.41
4.69
5.06
5.44
5.81
6.19

7.22
7.41
7.59
7.78
7.97
8.16
5.44
5.81
6.19
6.56
6.94

7.97
8.16
8.34
8.53
8.72
8.91
6.19
6.56
6.94
7.31
7.69

8.72
8.91
9.09
9.28
9.47
9.66
6.94
7.31
7.69
8.06
8.44

9.47
9.66
9.84
10.03
10.22
10.41
7.69
8.06
8.44
8.81
9.19

10.22
10.41
10.59
10.78
10.97
11.16
8.44
8.81
9.19
9.56
9.94

3.56

5.44

6.56

7.31

8.06

8.81

2.62

3.75
3.94

5.62
5.81

6.75
6.94

7.50
7.69

8.25
8.44

2.81
3.00

4.12
4.31

6.00
6.19

7.12
7.31

3.37

4.69
3.28

6.56
5.15

3.65
5.06
3.84

4.12
5.53
6.94
5.72
4.49

7.69
6.28
4.87
5.24
6.65
8.06
6.84
5.62

7.87
8.06
4.87
8.44
7.03
5.62
5.99
7.40
8.81
7.59
6.37

8.62
8.81
5.62
9.19
7.78
6.37
6.75
8.15
9.56
8.34
7.12

9.00
9.19
5.62
9.37
9.56
6.37
9.94
8.53
7.12
7.50
8.90
10.31
9.09
7.87

9.56
5.62
9.75
9.94
6.37
10.12
10.31
7.12
10.69
9.28
7.87
8.25
9.65
11.06
9.84
8.62

10.31
6.37
10.50
10.69
7.12
10.87
11.06
7.87
11.44
10.03
8.62
9.00
10.40
11.81
10.59
9.37

10.97
11.16
11.34
11.53
11.72
11.91
9.19
9.56
9.94
10.31
10.69
6.37
11.06
7.12
11.25
11.44
7.87
11.62
11.81
8.62
12.19
10.78
9.37
9.75
11.15
12.56
11.34
10.12

14.25
13.88
13.50
13.12
12.94
12.75
12.56
12.38
12.19
12.00
11.62
11.25
10.88
10.50
10.12
9.38
8.62
7.88
7.12
12.09
12.28
12.47
12.66
12.84
13.03
10.31
10.69
11.06
11.44
11.81
7.50
12.19
8.25
12.37
12.56
9.00
12.75
12.94
9.75
13.31
11.90
10.50
10.87
12.28
13.69
12.47
11.25

15.37
15.00
14.63
14.25
14.06
13.87
13.69
13.50
13.31
13.13
12.75
12.37
12.00
11.62
11.25
10.50
9.75
9.00
8.25
13.22
13.41
13.59
13.78
13.97
14.16
11.44
11.81
12.19
12.56
12.94
8.62
13.31
9.37
13.50
13.69
10.12
13.87
14.06
10.87
14.44
13.03
11.62
12.00
13.41
14.81
13.59
12.37

16.50
16.13
15.75
15.37
15.19
15.00
14.81
14.63
14.44
14.25
13.87
13.50
13.13
12.75
12.37
11.63
10.87
10.13
9.37
14.34
14.53
14.72
14.91
15.09
15.28
12.56
12.94
13.31
13.69
14.06
9.75
14.44
10.50
14.62
14.81
11.25
15.00
15.19
12.00
15.56
14.15
12.75
13.12
14.53
15.94
14.72
13.50

17.62
17.25
16.88
16.50
16.31
16.12
15.94
15.75
15.56
15.38
15.00
14.62
14.25
13.87
13.50
12.75
12.00
11.25
10.50
15.47
15.66
15.84
16.03
16.22
16.41
13.69
14.06
14.44
14.81
15.19
10.87
15.56
11.62
15.75
15.94
12.37
16.12
16.31
13.12
16.69
15.28
13.87
14.25
15.66
17.06
15.84
14.62

19.12
18.75
18.38
18.00
17.81
17.62
17.44
17.25
17.06
16.88
16.50
16.12
15.75
15.37
15.00
14.25
13.50
12.75
12.00
16.97
17.16
17.34
17.53
17.72
17.91
15.19
15.56
15.94
16.31
16.69
12.37
17.06
13.12
17.25
17.44
13.87
17.62
17.81
14.62
18.19
16.78
15.37
15.75
17.16
18.56
17.34
16.12

20.62
20.25
19.88
19.50
19.31
19.12
18.94
18.75
18.56
18.38
18.00
17.62
17.25
16.87
16.50
15.75
15.00
14.25
13.50
18.47
18.66
18.84
19.03
19.22
19.41
16.69
17.06
17.44
17.81
18.19
13.87
18.56
14.62
18.75
18.94
15.37
19.12
19.31
16.12
19.69
18.28
16.87
17.25
18.66
20.06
18.84
17.62

22.12
21.75
21.38
21.00
20.81
20.62
20.44
20.25
20.06
19.88
19.50
19.12
18.75
18.37
18.00
17.25
16.50
15.75
15.00
19.97
20.16
20.34
20.53
20.72
20.91
18.19
18.56
18.94
19.31
19.69
15.37
20.06
16.12
20.25
20.44
16.87
20.62
20.81
17.62
21.19
19.78
18.37
18.75
20.16
21.56
20.34
19.12

23.62
23.25
22.88
22.50
22.31
22.12
21.94
21.75
21.56
21.38
21.00
20.62
20.25
19.87
19.50
18.75
18.00
17.25
16.50
21.47
21.66
21.84
22.03
22.22
22.41
19.69
20.06
20.44
20.81
21.19
16.87
21.56
17.62
21.75
21.94
18.37
22.12
22.31
19.12
22.69
21.28
19.87
20.25
21.66
23.06
21.84
20.62

25.12
24.75
24.38
24.00
23.81
23.62
23.44
23.25
23.06
22.88
22.50
22.12
21.75
21.37
21.00
20.25
19.50
18.75
18.00
22.97
23.16
23.34
23.53
23.72
23.91
21.19
21.56
21.94
22.31
22.69
18.37
23.06
19.12
23.25
23.44
19.87
23.62
23.81
20.62
24.19
22.78
21.37
21.75
23.16
24.56
23.34
22.12

28.12
27.75
27.38
27.00
26.81
26.62
26.44
26.25
26.06
25.88
25.50
25.12
24.75
24.37
24.00
23.25
22.50
21.75
21.00
25.97
26.16
26.34
26.53
26.72
26.91
24.19
24.56
24.94
25.31
25.69
21.37
26.06
22.12
26.25
26.44
22.87
26.62
26.81
23.62
27.19
25.78
24.37
24.75
26.16
27.56
26.34
25.12

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.048
1.050
1.053
1.056
1.059
1.063
1.067
1.071
1.077
1.083
1.091
1.091
1.100
1.100
1.105
1.111
1.111
1.118
1.125
1.125
1.143
1.143
1.143
1.154
1.158
1.167
1.167
1.167

=0.8

2.72
2.91
3.09

3.75

Page 65

Key to Horsepower Correction Factor

=1.0

3.28

4.59
3.74

6.47
5.62

7.59
6.75

8.34
7.50

9.09
8.25

2.61

3.93

2.80

4.12

3.92
5.81
4.96
6.00
4.30

5.05
6.93
6.09
7.12
5.43

5.80
7.68
6.84
7.87
6.18

6.55
8.43
7.59
8.62
6.93
5.23

9.84
9.00
5.23
7.30
9.18
8.34
9.37
7.68
5.98

5.34
4.67
6.37

7.21
6.55
8.25
5.23
7.59
6.93
7.78
8.62
7.30
6.64
5.98
4.65

7.96
7.30
9.00
5.98
8.34
7.68
8.53
9.37
8.05
7.39
6.73
5.40

8.71
8.05
9.75
6.73
9.09
8.43
9.28
10.12
8.80
8.15
7.48
6.16

=0.8

3.46

600L
P.L. 60.00
160 Teeth

9.28
8.25
9.47
10.69
8.62
6.55

540L
P.L. 54.00
144 Teeth

8.53
7.50
8.72
9.94
7.87
5.80

510L
P.L. 51.00
136 Teeth

7.78
6.75
7.97
9.19
7.12
5.05

480L
P.L. 48.00
128 Teeth

7.03
5.99
7.22
8.44
6.37
4.30

450L
P.L. 45.00
120 Teeth

5.90
4.87
6.09
7.31
5.24

420L
P.L. 42.00
112 Teeth

4.21
5.44
3.37

390L
P.L. 39.00
104 Teeth

4.03

2.90
4.12

367L
P.L. 36.75
98 Teeth

2.71

1.176
1.182
1.188
1.200
1.200
1.200
1.200
1.214
1.222
1.222
1.231
1.235
1.238
1.250
1.250
1.250
1.250
1.263
1.273
1.286
1.286
1.294
1.300
1.313
1.333
1.333
1.333
1.333
1.333
1.333
1.357
1.364
1.364
1.368
1.375
1.375
1.385
1.400
1.400
1.412
1.417
1.429
1.429
1.429
1.444
1.455
1.467
1.474

345L
P.L. 34.50
92 Teeth

2.387
3.104
2.268
1.432
2.865
4.297
5.730
2.029
2.626
5.252
3.820
2.507
3.104
2.387
3.581
4.775
7.162
2.865
3.342
2.149
4.297
2.626
3.104
2.507
1.910
2.865
3.342
3.820
4.775
5.730
2.268
3.581
7.162
3.104
2.626
5.252
4.297
1.671
3.342
2.865
2.029
2.387
3.581
4.775
3.104
3.820
5.252
3.342

322L
P.L. 32.25
86 Teeth

20
26
19
12
24
36
48
17
22
44
32
21
26
20
30
40
60
24
28
18
36
22
26
21
16
24
28
32
40
48
19
30
60
26
22
44
36
14
28
24
17
20
30
40
26
32
44
28

300L
P.L. 30.00
80 Teeth

2.029
2.626
1.910
1.194
2.387
3.581
4.775
1.671
2.149
4.297
3.104
2.029
2.507
1.910
2.865
3.820
5.730
2.268
2.626
1.671
3.342
2.029
2.387
1.910
1.432
2.149
2.507
2.865
3.581
4.297
1.671
2.626
5.252
2.268
1.910
3.820
3.104
1.194
2.387
2.029
1.432
1.671
2.507
3.342
2.149
2.626
3.581
2.268

285L
P.L. 28.50
76 Teeth

17
22
16
10
20
30
40
14
18
36
26
17
21
16
24
32
48
19
22
14
28
17
20
16
12
18
21
24
30
36
14
22
44
19
16
32
26
10
20
17
12
14
21
28
18
22
30
19

270L
P.L. 27.00
72 Teeth

2933
2919
2905
2875
2875
2875
2875
2841
2823
2823
2803
2793
2787
2760
2760
2760
2760
2731
2711
2683
2683
2666
2654
2629
2588
2588
2588
2588
2588
2588
2542
2530
2530
2521
2509
2509
2492
2464
2464
2444
2435
2415
2415
2415
2388
2372
2352
2341

255L
P.L. 25.50
68 Teeth

1488
1481
1474
1458
1458
1458
1458
1441
1432
1432
1422
1417
1413
1400
1400
1400
1400
1385
1375
1361
1361
1352
1346
1333
1313
1313
1313
1313
1313
1313
1289
1283
1283
1279
1273
1273
1264
1250
1250
1240
1235
1225
1225
1225
1212
1203
1193
1188

Speed
Ratio

240L
P.L. 24.00
64 Teeth

986
982
977
967
967
967
967
955
949
949
943
939
937
928
928
928
928
918
911
902
902
896
892
884
870
870
870
870
870
870
855
851
851
848
844
844
838
829
829
822
819
812
812
812
803
798
791
787

Pitch
Pitch
No. of diam. No. of diam.
grooves inches grooves inches

225L
P.L. 22.50
60 Teeth

3450
RPM

210L
P.L. 21.00
56 Teeth

1750
RPM

DriveN

187L
P.L. 18.75
50 Teeth

The Gates Rubber Company

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

150L
P.L. 15.00
40 Teeth

DriveN Speed
For motor speed of

Drive Selection Table
124L
P.L. 12.375
33 Teeth

Page 66

L, 0.375² Pitch Belts

10.03
9.00
10.22
11.44
9.37
7.30
10.59
9.75
5.98
8.05
9.93
9.09
10.12
8.43
6.73

10.78
9.75
10.97
12.19
10.12
8.05
5.98
11.34
10.50
6.73
8.80
10.68
9.84
10.87
9.18
7.48

11.53
10.50
11.72
12.94
10.87
8.81
6.73
12.09
11.25
7.49
9.56
11.43
10.59
11.62
9.93
8.24

12.66
11.62
12.84
14.06
12.00
9.93
7.86
13.22
12.37
8.61
10.68
12.56
11.71
12.75
11.06
9.36

10.21
9.56
11.25
8.24
10.59
9.93
10.78
11.62
10.31
9.65
8.99
7.66
6.33
11.15
9.36

10.96
10.31
12.00
8.99
11.34
10.68
11.53
12.37
11.06
10.40
9.74
8.42
7.09
11.90
10.11

12.09
11.43
13.12
10.11
12.47
11.81
12.65
13.50
12.18
11.52
10.86
9.54
8.22
13.03
11.24

10.02
10.68
7.09
8.42
12.00
9.74
10.40
11.53
11.06
9.45
7.84
10.11
9.17
7.26
9.83

10.77
11.43
7.84
9.17
12.75
10.49
11.15
12.28
11.81
10.20
8.60
10.86
9.92
8.02
10.58

11.90
12.56
8.97
10.29
13.87
11.62
12.27
13.40
12.93
11.33
9.72
11.99
11.05
9.15
11.71

13.78
12.75
13.97
15.19
13.12
11.06
8.99
14.34
13.50
9.74
11.81
13.69
12.84
13.87
12.18
10.49
7.09
13.22
12.56
14.25
11.24
13.59
12.93
13.78
14.62
13.31
12.65
11.99
10.67
9.35
14.15
12.37
7.44
13.02
13.68
10.10
11.42
15.00
12.74
13.40
14.53
14.06
12.46
10.85
13.12
12.17
10.28
12.83

14.91
13.87
15.09
16.31
14.25
12.18
10.11
15.47
14.62
10.86
12.93
14.81
13.96
15.00
13.31
11.61
8.22
14.34
13.68
15.37
12.37
14.72
14.06
14.90
15.75
14.43
13.77
13.12
11.80
10.48
15.28
13.49
8.57
14.15
14.81
11.23
12.55
16.12
13.87
14.53
15.65
15.18
13.58
11.98
14.24
13.30
11.41
13.96

16.03
15.00
16.22
17.44
15.37
13.31
11.24
16.59
15.75
11.99
14.06
15.94
15.09
16.12
14.43
12.74
9.35
15.47
14.81
16.50
13.49
15.84
15.18
16.03
16.87
15.56
14.90
14.24
12.92
11.60
16.40
14.62
9.70
15.28
15.93
12.35
13.67
17.25
14.99
15.65
16.78
16.31
14.71
13.11
15.37
14.42
12.53
15.08

17.53
16.50
17.72
18.94
16.87
14.81
12.74
18.09
17.25
13.49
15.56
17.44
16.59
17.62
15.93
14.24
10.85
16.97
16.31
18.00
14.99
17.34
16.68
17.53
18.37
17.06
16.40
15.74
14.42
13.11
17.90
16.12
11.21
16.78
17.43
13.86
15.18
18.75
16.49
17.15
18.28
17.81
16.21
14.61
16.87
15.93
14.04
16.59

19.03
18.00
19.22
20.44
18.37
16.31
14.24
19.59
18.75
14.99
17.06
18.94
18.09
19.12
17.43
15.74
12.35
18.47
17.81
19.50
16.49
18.84
18.18
19.03
19.87
18.56
17.90
17.24
15.93
14.61
19.40
17.62
12.71
18.28
18.93
15.36
16.68
20.25
17.99
18.65
19.78
19.31
17.71
16.11
18.37
17.43
15.54
18.09

20.53
19.50
20.72
21.94
19.87
17.81
15.74
21.09
20.25
16.49
18.56
20.44
19.59
20.62
18.93
17.24
13.86
19.97
19.31
21.00
17.99
20.34
19.68
20.53
21.37
20.06
19.40
18.74
17.43
16.11
20.90
19.12
14.22
19.78
20.43
16.86
18.18
21.75
19.49
20.15
21.28
20.81
19.21
17.61
19.87
18.93
17.04
19.59

22.03
21.00
22.22
23.44
21.37
19.31
17.24
22.59
21.75
17.99
20.06
21.94
21.09
22.12
20.43
18.74
15.36
21.47
20.81
22.50
19.49
21.84
21.18
22.03
22.87
21.56
20.90
20.24
18.93
17.61
22.40
20.62
15.72
21.28
21.93
18.36
19.68
23.25
21.00
21.65
22.78
22.31
20.71
19.11
21.37
20.43
18.54
21.09

23.53
22.50
23.72
24.94
22.87
20.81
18.74
24.09
23.25
19.49
21.56
23.44
22.59
23.62
21.93
20.24
16.86
22.97
22.31
24.00
20.99
23.34
22.68
23.53
24.37
23.06
22.40
21.74
20.43
19.11
23.90
22.12
17.22
22.78
23.43
19.86
21.18
24.75
22.50
23.15
24.28
23.81
22.21
20.61
22.87
21.93
20.05
22.59

26.53
25.50
26.72
27.94
25.87
23.81
21.74
27.09
26.25
22.50
24.56
26.44
25.59
26.62
24.93
23.24
19.86
25.97
25.31
27.00
24.00
26.34
25.68
26.53
27.37
26.06
25.40
24.75
23.43
22.11
26.90
25.12
20.23
25.78
26.44
22.86
24.18
27.75
25.50
26.15
27.28
26.81
25.21
23.61
25.87
24.93
23.05
25.59

3.83
3.17
4.02
4.87
3.54

5.71
5.05
5.90
6.75
5.43
4.76
4.10

6.46
5.80
7.50
4.47
6.84
6.18
7.02
7.87
6.55
5.89
5.23

4.40

6.27
4.47

7.40
5.60

8.15
6.36

8.90
7.11

9.65
7.86

9.46
8.81
10.50
7.49
9.84
9.18
10.03
10.87
9.56
8.90
8.24
6.91
5.58
10.40
8.61

3.25
3.92

5.14
5.80

6.27
6.93

7.02
7.68

7.77
8.43

3.93

5.24

3.46
2.98

3.63
4.77
4.30

7.12
4.85
5.52
6.65
6.18
4.56

4.65
8.25
5.98
6.64
7.78
7.30
5.69

5.23
4.27

6.36
5.40

5.40
9.00
6.73
7.39
8.53
8.05
6.45
4.82
7.11
6.16

4.94

6.07

6.82

6.16
9.75
7.49
8.15
9.28
8.81
7.20
5.58
7.86
6.91
4.99
7.57

8.52
9.18
5.58
6.91
10.50
8.24
8.90
10.03
9.56
7.95
6.33
8.61
7.66
5.75
8.33

9.27
9.93
6.33
7.66
11.25
8.99
9.65
10.78
10.31
8.70
7.09
9.36
8.42
6.51
9.08

3.18

2.70
3.55

3.08

4.49

3.34

=0.6

L, 0.375² Pitch Belts

Center Distance, Inches

Page 67

Key to Horsepower Correction Factor

=1.0

390L
P.L. 39.00
104 Teeth

420L
P.L. 42.00
112 Teeth

450L
P.L. 45.00
120 Teeth

480L
P.L. 48.00
128 Teeth

510L
P.L. 51.00
136 Teeth

540L
P.L. 54.00
144 Teeth

600L
P.L. 60.00
160 Teeth

2.149
2.507
2.865
3.581
4.297
5.730
7.162
8.594
3.820
3.104
4.775
3.342
2.626
5.252
3.581
2.268
1.910
3.820
5.730
3.104
4.297
8.594
3.342
2.387
3.581
4.775
7.162
3.820
5.252
2.029
2.865
4.297
5.730
2.507
3.342
10.027
3.581
3.820
2.149
4.297
8.594
4.775
2.626
5.252
5.730
3.104
3.581
7.162

367L
P.L. 36.75
98 Teeth

18
21
24
30
36
48
60
72
32
26
40
28
22
44
30
19
16
32
48
26
36
72
28
20
30
40
60
32
44
17
24
36
48
21
28
84
30
32
18
36
72
40
22
44
48
26
30
60

345L
P.L. 34.50
92 Teeth

1.432
1.671
1.910
2.387
2.865
3.820
4.775
5.730
2.507
2.029
3.104
2.149
1.671
3.342
2.268
1.432
1.194
2.387
3.581
1.910
2.626
5.252
2.029
1.432
2.149
2.865
4.297
2.268
3.104
1.194
1.671
2.507
3.342
1.432
1.910
5.730
2.029
2.149
1.194
2.387
4.775
2.626
1.432
2.865
3.104
1.671
1.910
3.820

322L
P.L. 32.25
86 Teeth

1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.524
1.529
1.538
1.556
1.571
1.571
1.579
1.583
1.600
1.600
1.600
1.625
1.636
1.636
1.647
1.667
1.667
1.667
1.667
1.684
1.692
1.700
1.714
1.714
1.714
1.750
1.750
1.750
1.765
1.778
1.800
1.800
1.800
1.818
1.833
1.833
1.846
1.857
1.875
1.875

12
14
16
20
24
32
40
48
21
17
26
18
14
28
19
12
10
20
30
16
22
44
17
12
18
24
36
19
26
10
14
21
28
12
16
48
17
18
10
20
40
22
12
24
26
14
16
32

300L
P.L. 30.00
80 Teeth

2300
2300
2300
2300
2300
2300
2300
2300
2264
2256
2243
2218
2195
2195
2185
2179
2156
2156
2156
2123
2108
2108
2095
2070
2070
2070
2070
2048
2039
2029
2013
2013
2013
1971
1971
1971
1955
1941
1917
1917
1917
1898
1882
1882
1869
1858
1840
1840

285L
P.L. 28.50
76 Teeth

1167
1167
1167
1167
1167
1167
1167
1167
1148
1144
1138
1125
1114
1114
1108
1105
1094
1094
1094
1077
1069
1069
1063
1050
1050
1050
1050
1039
1034
1029
1021
1021
1021
1000
1000
1000
992
984
972
972
972
963
955
955
948
942
933
933

270L
P.L. 27.00
72 Teeth

773
773
773
773
773
773
773
773
761
758
754
746
738
738
735
733
725
725
725
714
709
709
704
696
696
696
696
689
685
682
677
677
677
663
663
663
657
653
644
644
644
638
633
633
628
625
619
619

255L
P.L. 25.50
68 Teeth

Speed
Ratio

240L
P.L. 24.00
64 Teeth

Pitch
Pitch
3450 No. of diam. No. of diam.
RPM grooves inches grooves inches

225L
P.L. 22.50
60 Teeth

1750
RPM

210L
P.L. 21.00
56 Teeth

The Driving Force in Power Transmission.

1160
RPM

187L
P.L. 18.75
50 Teeth

DriveN

150L
P.L. 15.00
40 Teeth

Sprocket Combinations
DriveR

124L
P.L. 12.375
33 Teeth

DriveN Speed
For motor speed of

Drive Selection Table

3.36
2.88

4.67
4.20
3.72

6.55
6.08
5.60
4.65

7.68
7.21
6.73
5.78
4.82

8.43
7.96
7.48
6.54
5.58

9.18
8.71
8.24
7.29
6.33

9.93
9.46
8.99
8.04
7.09
5.16

10.68
10.21
9.74
8.79
7.84
5.92

11.43
10.96
10.49
9.54
8.60
6.68

12.18
11.71
11.24
10.30
9.35
7.44

13.31
12.84
12.37
11.42
10.48
8.57
6.64

14.43
13.96
13.49
12.55
11.60
9.70
7.78

15.56
15.09
14.62
13.67
12.73
10.83
8.92

16.68
16.21
15.74
14.80
13.86
11.96
10.05
8.12
14.52
15.46
13.29
15.18
16.12
12.71
14.89
16.59
17.06
14.61
12.14
15.55
14.04
8.46
15.27
16.49
14.98
13.47
10.40
14.70
12.89
16.96
15.93
14.13
12.32
16.40
15.36

18.18
17.71
17.24
16.30
15.36
13.47
11.56
9.64
16.02
16.96
14.79
16.68
17.62
14.22
16.39
18.09
18.56
16.11
13.64
17.05
15.54
9.99
16.77
17.99
16.48
14.97
11.91
16.20
14.40
18.46
17.43
15.63
13.82
17.90
16.86
8.35
16.58
16.29
18.37
15.72
10.32
15.15
17.80
14.58
14.00
17.23
16.67
12.26

19.68
19.21
18.74
17.80
16.86
14.97
13.07
11.16
17.52
18.46
16.29
18.18
19.12
15.72
17.89
19.59
20.06
17.61
15.15
18.55
17.04
11.50
18.27
19.49
17.99
16.47
13.42
17.70
15.90
19.96
18.93
17.13
15.33
19.40
18.36
9.89
18.08
17.79
19.87
17.22
11.85
16.65
19.30
16.08
15.51
18.74
18.17
13.77

21.18
20.71
20.24
19.30
18.36
16.47
14.58
12.67
19.02
19.96
17.79
19.68
20.62
17.22
19.40
21.09
21.56
19.11
16.65
20.05
18.54
13.02
19.77
21.00
19.49
17.97
14.93
19.20
17.40
21.46
20.43
18.63
16.83
20.90
19.86
11.42
19.58
19.29
21.37
18.73
13.36
18.16
20.80
17.58
17.01
20.24
19.67
15.28

22.68
22.21
21.74
20.80
19.86
17.97
16.08
14.18
20.52
21.46
19.29
21.18
22.12
18.73
20.90
22.59
23.06
20.61
18.16
21.55
20.05
14.53
21.27
22.50
20.99
19.48
16.44
20.70
18.91
22.96
21.93
20.14
18.34
22.40
21.36
12.95
21.08
20.80
22.87
20.23
14.88
19.66
22.30
19.09
18.52
21.74
21.17
16.79

24.18
23.71
23.24
22.30
21.36
19.48
17.58
15.68
22.02
22.96
20.80
22.68
23.62
20.23
22.40
24.09
24.56
22.11
19.66
23.05
21.55
16.04
22.77
24.00
22.49
20.98
17.94
22.20
20.41
24.47
23.43
21.64
19.84
23.90
22.86
14.46
22.58
22.30
24.37
21.73
16.39
21.16
23.81
20.59
20.02
23.24
22.67
18.30

27.19
26.72
26.25
25.31
24.36
22.48
20.59
18.70
25.02
25.96
23.80
25.68
26.62
23.23
25.40
27.09
27.56
25.11
22.66
26.06
24.55
19.05
25.77
27.00
25.49
23.98
20.95
25.21
23.41
27.47
26.43
24.64
22.84
26.90
25.87
17.49
25.58
25.30
27.37
24.73
19.41
24.16
26.81
23.59
23.02
26.24
25.67
21.31

=0.8

3.43

4.36
5.32

5.49
6.45

2.77

3.13
4.10

5.03
5.98

6.16
7.11

6.25
7.20
4.99
6.91
7.86

3.25
3.73

4.57
5.05

4.74
6.46
6.93
4.44

5.87
7.58
8.05
5.58

6.62
8.33
8.80
6.33

7.00
7.95
5.75
7.66
8.61
5.16
7.38
9.08
9.56
7.09

3.51

5.40
3.85

6.53
4.99

7.29
5.75

8.04
6.51

7.75
8.70
6.51
8.42
9.36
5.92
8.13
9.84
10.31
7.84
5.33
8.79
7.26

8.51
9.45
7.26
9.17
10.11
6.68
8.88
10.59
11.06
8.60
6.09
9.54
8.02

9.26
10.20
8.02
9.92
10.86
7.44
9.63
11.34
11.81
9.35
6.85
10.29
8.77

10.01
10.96
8.77
10.67
11.62
8.19
10.39
12.09
12.56
10.10
7.61
11.05
9.53

11.14
12.08
9.90
11.80
12.74
9.33
11.51
13.21
13.68
11.23
8.75
12.17
10.65

12.26
13.21
11.03
12.92
13.87
10.46
12.64
14.34
14.81
12.35
9.88
13.30
11.78

3.21
4.48

5.11
6.36
4.82

6.25
7.49
5.96
4.40

7.00
8.24
6.71
5.16

7.75
8.99
7.47
5.92

8.51
9.74
8.22
6.68

9.26
10.49
8.97
7.44

10.01
11.24
9.72
8.19

10.76
11.99
10.48
8.95

4.53

5.67

7.18
5.33
9.46
8.42
6.60

8.68
6.85
10.96
9.92
8.11
6.26
10.39
9.35

9.44
7.61
11.71
10.67
8.86
7.02
11.14
10.10

10.19
8.37
12.46
11.42
9.61
7.78
11.89
10.85

11.89
13.12
11.60
10.08
6.98
11.32
9.50
13.59
12.55
10.74
8.92
13.02
11.98

13.02
14.24
12.73
11.21
8.12
12.44
10.63
14.71
13.67
11.87
10.05
14.15
13.11

13.39
14.33
12.16
14.05
14.99
11.59
13.77
15.46
15.93
13.48
11.01
14.42
12.91
7.31
14.14
15.37
13.86
12.34
9.26
13.57
11.76
15.84
14.80
13.00
11.19
15.27
14.23
13.95
13.66
15.74
13.09
7.63
12.52
15.18
11.94
11.36
14.61
14.04
9.60

15.07
14.79
16.87
14.22
8.79
13.64
16.30
13.07
12.49
15.73
15.16
10.74

3.15

3.63

4.95
3.89

6.83
5.78
3.93

7.96
6.91
5.08

6.42
4.56
8.71
7.66
5.84

3.05

4.37
3.30

6.26
5.20

7.39
6.33

8.14
7.09

8.89
7.84

7.93
6.09
10.21
9.17
7.35
5.49
9.64
8.60

3.53

4.85

4.91
4.61
6.73
4.01

6.04
5.75
7.86
5.16

6.80
6.51
8.61
5.92

7.55
7.26
9.36
6.68

8.31
8.02
10.11
7.44

9.06
8.77
10.86
8.19

9.81
9.53
11.61
8.95

10.57
10.28
12.37
9.70

11.69
11.41
13.49
10.83

12.82
12.53
14.62
11.96

2.94

4.27

6.16

4.56
7.29

5.33
8.04
4.72

3.68

5.58
4.99

6.71
6.13

7.47
6.89

6.09
8.79
5.49
4.88
8.22
7.64

6.85
9.54
6.26
5.66
8.97
8.40

7.61
10.30
7.02
6.43
9.72
9.15

8.37
11.05
7.78
7.19
10.48
9.90

9.12
11.80
8.54
7.95
11.23
10.65
6.15

10.26
12.92
9.68
9.09
12.35
11.78
7.31

11.39
14.05
10.81
10.23
13.48
12.91
8.46

=0.6

Key to Horsepower Correction Factor

=1.0

=0.8

540L
P.L. 54.00
144 Teeth

600L
P.L. 60.00
160 Teeth

4.70
4.09
6.63

5.84
5.25
7.76
4.64

6.60
6.01
8.51
5.41

7.35
6.77
9.27
6.18

8.11
7.53
10.02
6.94

8.86
8.28
10.77
7.70

9.61
9.04
11.52
8.45

10.37
9.79
12.27
9.21

11.50
10.92
13.40
10.34

12.62
12.05
14.52
11.47

13.75
13.18
15.65
12.60

4.65
4.06
3.46

6.54
5.96
5.37
4.78
4.17

7.66
7.09
6.51
5.92
5.33
4.72

8.42
7.84
7.26
6.68
6.09
5.49
4.89

9.17
8.60
8.02
7.44
6.85
6.26
5.66
5.04

9.92
9.35
8.77
8.19
7.61
7.02
6.43
5.82

10.67
10.10
9.53
8.95
8.37
7.78
7.19
6.59

11.42
10.85
10.28
9.70
9.12
8.54
7.95
7.36

12.17
11.60
11.03
10.46
9.88
9.30
8.71
8.12
6.31

13.30
12.73
12.16
11.59
11.01
10.43
9.85
9.26
7.47

14.43
13.86
13.29
12.71
12.14
11.56
10.98
10.40
8.63
6.78

15.55
14.98
14.41
13.84
13.27
12.69
12.12
11.54
9.77
7.96

16.68
16.11
15.54
14.97
14.40
13.82
13.25
12.67
10.92
9.12

4.55

6.43

7.56

4.97
8.32

5.74
9.07

6.51
9.82

7.28
10.57

8.04
11.32

8.80
12.08

9.94
13.20

11.07
14.33

12.20
15.45

13.34
16.58

3.23

4.25
5.16

4.80
5.41
6.30

5.58
6.18
7.06

6.34
6.94
7.82

7.11
7.70
8.57

7.87
8.46
9.33

3.85

5.75

6.89

7.64

8.40
5.20

9.15
5.98

9.90
6.76

8.63
9.21
10.08
5.68
10.65
7.53

9.38
9.97
10.83
6.47
11.41
8.29

10.52
11.10
11.96
7.64
12.53
9.43

11.65
12.23
13.09
8.79
13.66
10.57

12.78
13.36
14.22
9.94
14.79
11.71

4.44

6.33
4.33

7.47
4.26
4.88
5.49

8.22
5.05
5.66
6.26

8.97
5.82
6.43
7.02

9.72
6.59
7.19
7.78

10.48
7.36
7.95
8.54

11.23
8.12
8.71
9.30

11.98
8.88
9.47
10.05

13.11
10.02
10.61
11.19

4.95

6.09

6.85
4.49

7.61
5.28

8.37
6.07

9.12
6.84

3.62

5.54

4.33
6.68

5.13
7.44

5.90
8.19

6.68
8.95

7.44
9.70

9.88
7.61
5.83
8.21
10.46

10.63
8.38
6.62
8.97
11.21

11.76
9.52
7.80
10.11
12.34

14.23
11.16
11.74
12.32
7.09
12.89
10.66
8.96
11.24
13.47

15.36
12.29
12.87
13.45
8.28
14.02
11.80
10.11
12.38
14.59

4.23

3.78
6.13

4.97
7.26

5.74
8.02
4.57

6.51
8.77
5.36

7.28
9.53
6.15

8.04
10.28
6.92

8.80
11.03
7.69

9.56
11.78
8.46

10.69
12.91
9.60

11.83
14.04
10.74
7.25

5.33
3.86

4.41
6.47
5.04

5.20
7.23
5.82

5.99
7.99
6.59

6.76
8.75
7.36

7.53
9.50
8.12

8.29
10.26
8.88
5.98

9.05
11.01
9.64
6.78

10.19
12.14
10.78
7.96

11.33
13.27
11.91
9.12

=0.6

510L
P.L. 51.00
136 Teeth

4.75

3.39

480L
P.L. 48.00
128 Teeth

2.88

450L
P.L. 45.00
120 Teeth

3.10

420L
P.L. 42.00
112 Teeth

3.21

390L
P.L. 39.00
104 Teeth

3.32
2.72

367L
P.L. 36.75
98 Teeth

3.43

1.882
1.895
1.900
1.905
1.909
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.095
2.100
2.100
2.105
2.118
2.143
2.143
2.167
2.182
2.182
2.200
2.200
2.222
2.250
2.250
2.286
2.286
2.308
2.316
2.333
2.333
2.353
2.400
2.400
2.400
2.400
2.444
2.500
2.500
2.500
2.500

345L
P.L. 34.50
92 Teeth

3.820
4.297
2.268
4.775
10.027
2.387
2.865
3.342
3.820
4.297
4.775
5.252
5.730
7.162
8.594
11.459
5.252
2.507
10.027
4.775
4.297
3.581
7.162
3.104
5.730
11.459
2.626
5.252
4.775
4.297
8.594
3.820
5.730
7.162
5.252
3.342
10.027
4.775
2.865
5.730
8.594
11.459
5.252
3.581
4.775
7.162
14.324

322L
P.L. 32.25
86 Teeth

32
36
19
40
84
20
24
28
32
36
40
44
48
60
72
96
44
21
84
40
36
30
60
26
48
96
22
44
40
36
72
32
48
60
44
28
84
40
24
48
72
96
44
30
40
60
120

300L
P.L. 30.00
80 Teeth

2.029
2.268
1.194
2.507
5.252
1.194
1.432
1.671
1.910
2.149
2.387
2.626
2.865
3.581
4.297
5.730
2.507
1.194
4.775
2.268
2.029
1.671
3.342
1.432
2.626
5.252
1.194
2.387
2.149
1.910
3.820
1.671
2.507
3.104
2.268
1.432
4.297
2.029
1.194
2.387
3.581
4.775
2.149
1.432
1.910
2.865
5.730

285L
P.L. 28.50
76 Teeth

17
19
10
21
44
10
12
14
16
18
20
22
24
30
36
48
21
10
40
19
17
14
28
12
22
44
10
20
18
16
32
14
21
26
19
12
36
17
10
20
30
40
18
12
16
24
48

270L
P.L. 27.00
72 Teeth

1833
1821
1816
1811
1807
1725
1725
1725
1725
1725
1725
1725
1725
1725
1725
1725
1647
1643
1643
1639
1629
1610
1610
1592
1581
1581
1568
1568
1553
1533
1533
1509
1509
1495
1490
1479
1479
1466
1438
1438
1438
1438
1411
1380
1380
1380
1380

255L
P.L. 25.50
68 Teeth

930
924
921
919
917
875
875
875
875
875
875
875
875
875
875
875
835
833
833
831
826
817
817
808
802
802
795
795
788
778
778
766
766
758
756
750
750
744
729
729
729
729
716
700
700
700
700

Speed
Ratio

240L
P.L. 24.00
64 Teeth

616
612
611
609
608
580
580
580
580
580
580
580
580
580
580
580
554
552
552
551
548
541
541
535
532
532
527
527
522
516
516
508
508
503
501
497
497
493
483
483
483
483
475
464
464
464
464

Pitch
Pitch
No. of diam. No. of diam.
grooves inches grooves inches

225L
P.L. 22.50
60 Teeth

3450
RPM

210L
P.L. 21.00
56 Teeth

1750
RPM

DriveN

187L
P.L. 18.75
50 Teeth

The Gates Rubber Company

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

150L
P.L. 15.00
40 Teeth

DriveN Speed
For motor speed of

Drive Selection Table
124L
P.L. 12.375
33 Teeth

Page 68

L, 0.375² Pitch Belts

14.88
14.31
16.77
13.73

16.38
15.81
18.27
15.24
8.67
18.18
17.61
17.04
16.47
15.90
15.33
14.75
14.18
12.43
10.66

17.88
17.31
19.77
16.74
10.22
19.68
19.11
18.54
17.97
17.40
16.83
16.26
15.68
13.95
12.19

13.91
14.49
15.35
11.09
15.92
12.84

14.84
18.08
8.99
15.42
15.99
16.85
12.61
17.42
14.35

12.96
15.16
11.88
8.44

16.48
13.42
14.00
14.58
9.45
15.15
12.93
11.25
13.51
15.72
7.71
14.09
16.29
13.02
9.61

17.99
14.93
15.51
16.08
10.99
16.65
14.44
12.78
15.02
17.22
9.31
15.60
17.79
14.53
11.15

12.47
14.40
13.05
10.27

13.60
15.53
14.18
11.42

15.11
17.03
15.68
12.95

16.35
19.58
10.55
16.92
17.49
18.35
14.12
18.92
15.86
8.82
19.49
16.44
17.01
17.58
12.52
18.16
15.95
14.29
16.53
18.73
10.87
17.10
19.29
16.04
12.69
9.13
16.61
18.53
17.19
14.46

19.39
18.82
21.27
18.25
11.76
21.18
20.61
20.05
19.48
18.91
18.34
17.76
17.19
15.46
13.71
10.09
17.85
21.08
12.09
18.43
19.00
19.85
15.63
20.42
17.37
10.41
20.99
17.94
18.52
19.09
14.05
19.66
17.46
15.81
18.03
20.23
12.42
18.61
20.80
17.55
14.22
10.72
18.12
20.03
18.69
15.98

20.89
20.32
22.77
19.75
13.28
22.68
22.11
21.55
20.98
20.41
19.84
19.27
18.69
16.97
15.22
11.65
19.36
22.58
13.62
19.93
20.50
21.35
17.14
21.92
18.87
11.97
22.49
19.45
20.02
20.59
15.57
21.16
18.96
17.32
19.54
21.73
13.95
20.11
22.30
19.05
15.74
12.29
19.63
21.54
20.20
17.49

22.39
21.82
24.28
21.25
14.81
24.18
23.61
23.05
22.48
21.91
21.34
20.77
20.20
18.48
16.74
13.19
20.86
24.08
15.15
21.43
22.00
22.86
18.65
23.42
20.38
13.52
23.99
20.95
21.52
22.09
17.08
22.66
20.47
18.83
21.04
23.23
15.48
21.61
23.80
20.56
17.26
13.84
21.13
23.04
21.70
19.00
10.34

25.39
24.82
27.28
24.25
17.84
27.18
26.62
26.05
25.48
24.91
24.35
23.78
23.21
21.49
19.76
16.25
23.87
27.09
18.18
24.44
25.01
25.86
21.67
26.42
23.39
16.58
26.99
23.96
24.53
25.10
20.11
25.66
23.48
21.84
24.05
26.23
18.53
24.62
26.80
23.57
20.28
16.92
24.14
26.04
24.71
22.02
13.56

L, 0.375² Pitch Belts

Page 69

Key to Horsepower Correction Factor

=1.0

=0.8

5.92

4.49
7.06

5.28
7.82

6.07
8.57

6.84
9.33

7.61
10.08

8.38
10.83

3.15

5.11

6.26

7.02
4.72

7.78
5.52

8.54
6.31

9.30
7.08

3.78

3.55

3.30

10.83
12.49
7.40
11.42
13.84

11.97
13.62
8.60
12.55
14.97
14.20
12.05

13.10
14.75
9.77
13.69
16.10
8.02
15.33
13.19

10.05
7.86

10.81
8.63

11.94
9.77

13.07
10.91

5.32

6.14

6.94

8.12

9.28

10.44

11.59

10.36
6.33
12.52

11.50
7.56
13.65

12.64
8.75
14.77

4.57

5.36

6.15

6.92

7.69

8.46

9.22

5.71

6.85

7.61

8.37

9.12

9.88

10.63

11.39

4.01

5.20

4.79
5.98

5.60
6.76

6.39
7.53

5.49
4.65

6.64
5.82

7.40
6.59
4.87

8.16
7.36
5.68

8.92
8.12
6.47

7.17
8.29
5.40
9.68
8.88
7.25
5.47

7.94
9.05
6.21
10.43
9.64
8.02
6.29

8.71
9.81
7.02
11.19
10.40
8.79
7.09

9.86
10.95
8.20
12.32
11.54
9.94
8.28
6.48

11.00
12.09
9.37
13.45
12.67
11.08
9.45
7.71

12.14
13.22
10.52
14.58
13.80
12.23
10.61
8.91
7.07

13.77
9.93
15.90
8.17
13.28
14.35
11.67
15.70
14.93
13.36
11.76
10.09
8.32

4.72

5.52

6.31

7.09

6.43

7.19

7.95

8.71

7.86
5.54
9.47

8.63
6.37
10.23

9.39
7.17
10.98

10.54
8.36
12.12

11.68
9.53
13.25

12.81
10.69
14.38

13.95
11.84
15.51

6.63
11.12
8.44

7.86
12.26
9.61

7.21
9.07
13.40
10.77

8.47
10.25
14.53
11.92

5.27

4.16

4.81

=0.6

9.14
11.58

9.69
11.36
6.18
10.28
12.71

=0.4

5.36

6.15

6.92

7.69

8.46
5.62

9.22
6.44

9.98
7.25

4.18

5.02

5.83

6.62

7.41

8.18

8.96

10.11
6.70

11.25
7.94

12.40
9.15

13.53
10.33

5.69
9.05

6.52
9.81

7.33
10.57

9.69
12.84
8.02
11.85

7.36
10.85
13.98
9.22
12.98

8.62
12.01
15.11
10.41
14.12

600L
P.L. 60.00
160 Teeth

4.01

8.54
10.23

540L
P.L. 54.00
144 Teeth

7.77
9.47

510L
P.L. 51.00
136 Teeth

7.00
8.71

480L
P.L. 48.00
128 Teeth

6.23
7.95

450L
P.L. 45.00
120 Teeth

5.44
7.19

420L
P.L. 42.00
112 Teeth

4.64
6.43

390L
P.L. 39.00
104 Teeth

5.66

345L
P.L. 34.50
92 Teeth

2.64

4.49

322L
P.L. 32.25
86 Teeth

2.526
2.571
2.571
2.588
2.600
2.625
2.667
2.667
2.667
2.727
2.727
2.750
2.769
2.800
2.800
2.824
2.857
2.857
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.143
3.158
3.200
3.200
3.231
3.273
3.333
3.333
3.333
3.429
3.429
3.429
3.500
3.529
3.600
3.600
3.667
3.692
3.750
3.750
3.789
3.818

300L
P.L. 30.00
80 Teeth

5.730
4.297
8.594
5.252
3.104
10.027
3.820
5.730
11.459
7.162
14.324
5.252
8.594
3.342
10.027
5.730
4.775
7.162
3.581
4.297
5.730
7.162
8.594
10.027
11.459
14.324
5.252
7.162
3.820
11.459
10.027
8.594
4.775
7.162
14.324
5.730
8.594
11.459
10.027
7.162
4.297
8.594
5.252
11.459
7.162
14.324
8.594
10.027

285L
P.L. 28.50
76 Teeth

48
36
72
44
26
84
32
48
96
60
120
44
72
28
84
48
40
60
30
36
48
60
72
84
96
120
44
60
32
96
84
72
40
60
120
48
72
96
84
60
36
72
44
96
60
120
72
84

270L
P.L. 27.00
72 Teeth

2.268
1.671
3.342
2.029
1.194
3.820
1.432
2.149
4.297
2.626
5.252
1.910
3.104
1.194
3.581
2.029
1.671
2.507
1.194
1.432
1.910
2.387
2.865
3.342
3.820
4.775
1.671
2.268
1.194
3.581
3.104
2.626
1.432
2.149
4.297
1.671
2.507
3.342
2.865
2.029
1.194
2.387
1.432
3.104
1.910
3.820
2.268
2.626

255L
P.L. 25.50
68 Teeth

19
14
28
17
10
32
12
18
36
22
44
16
26
10
30
17
14
21
10
12
16
20
24
28
32
40
14
19
10
30
26
22
12
18
36
14
21
28
24
17
10
20
12
26
16
32
19
22

240L
P.L. 24.00
64 Teeth

1366
1342
1342
1333
1327
1314
1294
1294
1294
1265
1265
1255
1246
1232
1232
1222
1208
1208
1150
1150
1150
1150
1150
1150
1150
1150
1098
1093
1078
1078
1068
1054
1035
1035
1035
1006
1006
1006
986
978
958
958
941
934
920
920
910
904

225L
P.L. 22.50
60 Teeth

693
681
681
676
673
667
656
656
656
642
642
636
632
625
625
620
613
613
583
583
583
583
583
583
583
583
557
554
547
547
542
535
525
525
525
510
510
510
500
496
486
486
477
474
467
467
462
458

Speed
Ratio

210L
P.L. 21.00
56 Teeth

459
451
451
448
446
442
435
435
435
425
425
422
419
414
414
411
406
406
387
387
387
387
387
387
387
387
369
367
363
363
359
354
348
348
348
338
338
338
331
329
322
322
316
314
309
309
306
304

Pitch
Pitch
No. of diam. No. of diam.
grooves inches grooves inches

187L
P.L. 18.75
50 Teeth

3450
RPM

150L
P.L. 15.00
40 Teeth

1750
RPM

DriveN

367L
P.L. 36.75
98 Teeth

The Driving Force in Power Transmission.

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

124L
P.L. 12.375
33 Teeth

DriveN Speed
For motor speed of

Drive Selection Table

14.62
16.26
11.32
15.20
17.60
9.62
16.83
14.70
13.12

16.13
17.76
12.86
16.70
19.10
11.19
18.34
16.21
9.44
14.64

17.63
19.27
14.39
18.21
20.60
12.74
19.84
17.72
11.04
16.15

19.14
20.77
15.91
19.72
22.10
14.29
21.34
19.23
12.61
17.67

15.28
11.48
17.40
9.78
14.79
15.86
13.20
17.21
16.44
14.88
13.29
11.65
9.93
8.08

16.79
13.02
18.91
11.35
16.30
17.37
14.72
18.71
17.94
16.39
14.81
13.19
11.51
9.74

18.30
14.55
20.41
12.91
17.81
18.87
16.24
20.21
19.45
17.90
16.33
14.72
13.07
11.35

19.80
16.08
21.91
14.45
19.32
20.38
17.75
21.72
20.95
19.41
17.84
16.25
14.62
12.93

15.46
13.37
17.01
8.22
10.09
11.81
16.04
13.45

16.97
14.89
18.52
9.89
11.67
13.35
17.55
14.98

18.48
16.41
20.02
11.51
13.23
14.89
19.05
16.50

16.56
13.44
10.04
11.83
15.06
18.12
13.52
17.14
10.19
15.15

18.07
14.97
11.66
13.39
16.58
19.63
15.05
18.65
11.82
16.67

13.60
11.99

15.14
13.55

19.98
17.93
21.52
13.09
14.78
16.42
20.56
18.01
9.52
19.58
16.50
13.25
14.94
18.10
21.13
16.58
20.16
13.41
18.18
9.81
16.67
15.11

20.65
22.27
17.43
21.22
23.61
15.82
22.84
20.73
14.17
19.18
10.64
21.31
17.60
23.41
15.99
20.82
21.88
19.27
23.22
22.45
20.91
19.35
17.77
16.15
14.49
10.94
21.49
19.44
23.02
14.65
16.32
17.94
22.06
19.53
11.24
21.09
18.02
14.82
16.48
19.61
22.63
18.11
21.67
14.98
19.70
11.53
18.19
16.65

23.66
25.28
20.46
24.23
26.61
18.87
25.85
23.74
17.25
22.20
13.88
24.32
20.63
26.42
19.04
23.83
24.89
22.28
26.22
25.46
23.92
22.37
20.80
19.21
17.58
14.19
24.50
22.46
26.03
17.75
19.38
20.98
25.07
22.55
14.50
24.10
21.06
17.91
19.55
22.64
25.64
21.15
24.68
18.08
22.72
14.81
21.23
19.71

5.99

6.76

7.53

4.83
8.29

4.87

5.68

6.47

7.25

8.02

8.79

9.56

8.52
11.71
6.78
10.70

4.90

5.77

6.59

7.40

8.60

9.77

10.93

12.09

15.05
11.89
8.37
10.24
13.54
16.61
11.97
15.63
8.52
13.62

6.85

8.09

9.30
7.51

10.49
8.77

12.05
10.40

Drive Selection Table
Center Distance, Inches

Key to Horsepower Correction Factor

=1.0

=0.8

367L
P.L. 36.75
98 Teeth

390L
P.L. 39.00
104 Teeth

420L
P.L. 42.00
112 Teeth

450L
P.L. 45.00
120 Teeth

480L
P.L. 48.00
128 Teeth

510L
P.L. 51.00
136 Teeth

540L
P.L. 54.00
144 Teeth

600L
P.L. 60.00
160 Teeth

4.000
4.000
4.000
4.000
4.000
4.000
4.200
4.235
4.286
4.286
4.364
4.400
4.421
4.500
4.571
4.615
4.667
4.800
4.800
4.941
5.000
5.000
5.053
5.143
5.250
5.333
5.455
5.647
5.714
6.000
6.000
6.000
6.000
6.000
6.316
6.667
6.857
7.000
7.059
7.200
7.500
8.000
8.400
8.571
9.600
10.000
12.000

345L
P.L. 34.50
92 Teeth

4.775
5.730
8.594
10.027
11.459
14.324
10.027
8.594
7.162
14.324
11.459
5.252
10.027
8.594
11.459
14.324
10.027
5.730
11.459
10.027
7.162
14.324
11.459
8.594
10.027
11.459
14.324
11.459
14.324
7.162
8.594
10.027
11.459
14.324
14.324
14.324
11.459
10.027
14.324
8.594
14.324
11.459
10.027
14.324
11.459
14.324
14.324

322L
P.L. 32.25
86 Teeth

40
48
72
84
96
120
84
72
60
120
96
44
84
72
96
120
84
48
96
84
60
120
96
72
84
96
120
96
120
60
72
84
96
120
120
120
96
84
120
72
120
96
84
120
96
120
120

300L
P.L. 30.00
80 Teeth

1.194
1.432
2.149
2.507
2.865
3.581
2.387
2.029
1.671
3.342
2.626
1.194
2.268
1.910
2.507
3.104
2.149
1.194
2.387
2.029
1.432
2.865
2.268
1.671
1.910
2.149
2.626
2.029
2.507
1.194
1.432
1.671
1.910
2.387
2.268
2.149
1.671
1.432
2.029
1.194
1.910
1.432
1.194
1.671
1.194
1.432
1.194

285L
P.L. 28.50
76 Teeth

10
12
18
21
24
30
20
17
14
28
22
10
19
16
21
26
18
10
20
17
12
24
19
14
16
18
22
17
21
10
12
14
16
20
19
18
14
12
17
10
16
12
10
14
10
12
10

270L
P.L. 27.00
72 Teeth

863
863
863
863
863
863
821
815
805
805
791
784
780
767
755
748
739
719
719
698
690
690
683
671
657
647
633
611
604
575
575
575
575
575
546
518
503
493
489
479
460
431
411
403
359
345
288

255L
P.L. 25.50
68 Teeth

438
438
438
438
438
438
417
413
408
408
401
398
396
389
383
379
375
365
365
354
350
350
346
340
333
328
321
310
306
292
292
292
292
292
277
263
255
250
248
243
233
219
208
204
182
175
146

Speed
Ratio

240L
P.L. 24.00
64 Teeth

290
290
290
290
290
290
276
274
271
271
266
264
262
258
254
251
249
242
242
235
232
232
230
226
221
218
213
205
203
193
193
193
193
193
184
174
169
166
164
161
155
145
138
135
121
116
97

Pitch
Pitch
No. of diam. No. of diam.
grooves inches grooves inches

225L
P.L. 22.50
60 Teeth

3450
RPM

210L
P.L. 21.00
56 Teeth

1750
RPM

DriveN

187L
P.L. 18.75
50 Teeth

The Gates Rubber Company

1160
RPM

DriveR

150L
P.L. 15.00
40 Teeth

Sprocket Combinations

DriveN Speed
For motor speed of

124L
P.L. 12.375
33 Teeth

Page 70

L, 0.375² Pitch Belts

4.31

5.52
4.33

6.31
5.17

7.08
5.98

7.86
6.78

8.63
7.57

9.39
8.35

10.15
9.12
5.61

11.29
10.27
6.92

12.43
11.42
8.17

13.57
12.57
9.38
7.58

14.70
13.71
10.57
8.84

16.21
15.22
12.13
10.47
8.66

17.72
16.74
13.68
12.07
10.34

19.23
18.25
15.22
13.63
11.97

20.73
19.76
16.75
15.19
13.56
9.95
15.27
16.84
18.36
10.09
13.72
20.34
15.35
16.92
13.80
10.23
15.43
19.93
13.88
15.51
18.53
10.37
13.96
17.09
15.59
14.03
10.51
14.11
10.58
18.70
17.25
15.76
14.19
10.66
10.73
10.80
14.34
15.92
10.87
17.42
10.94
14.50
16.08
11.08
14.65
11.22
11.36

22.24
21.27
18.28
16.73
15.14
11.68
16.81
18.36
19.87
11.83
15.30
21.84
16.90
18.45
15.37
11.97
16.98
21.44
15.45
17.06
20.05
12.12
15.53
18.62
17.14
15.61
12.26
15.69
12.34
20.22
18.78
17.31
15.77
12.41
12.48
12.56
15.93
17.47
12.63
18.95
12.70
16.09
17.63
12.85
16.24
12.99
13.13

25.25
24.28
21.32
19.80
18.24
14.96
19.88
21.40
22.90
15.12
18.41
24.85
19.97
21.49
18.49
15.27
20.05
24.46
18.57
20.13
23.07
15.42
18.65
21.66
20.22
18.73
15.58
18.81
15.65
23.25
21.83
20.38
18.89
15.73
15.80
15.88
19.06
20.55
15.96
22.00
16.03
19.22
20.71
16.18
19.38
16.34
16.49

3.75

5.02

4.47

5.83

5.32

6.62

6.14

4.37

=0.4

=0.2

7.65
9.46
11.10

8.92
10.65
12.25

10.55
12.21
13.79

12.14
13.76
15.32

13.71
15.30
16.84

13.16
7.72
9.53

14.29
8.99
10.73

8.80
15.81
10.63
12.29
8.88

10.49
17.32
12.22
13.84
10.57

12.12
18.83
13.79
15.39
12.20

9.07
13.88
7.13
9.14
12.42

10.70
15.39
8.95
10.78
13.96

12.30
16.91
10.64
12.38
15.48

13.87
18.42
12.28
13.95
17.01

7.19
10.88
9.22
7.26

9.02
12.45
10.86
9.09

10.72
14.01
12.46
10.79

12.35
15.55
14.03
12.43

7.33

9.16

10.87

12.58
11.04
9.36
7.40

14.12
12.61
11.01
9.24

15.65
14.17
12.61
10.94

12.51
8.68
17.18
15.72
14.19
12.58
8.75
8.81
8.88
12.74
14.35
8.95
15.88
9.01
12.89
14.51
9.15
13.04
9.28
9.41

5.05

5.91

6.75

7.41

8.18

8.96

9.72

10.87

5.75

7.07

12.02
6.37
8.32

6.94

7.73

8.51

9.28

10.44

6.44
11.59

7.79
12.73

5.19

6.06

6.90

7.71

8.91

6.51
10.09

7.87
11.26

5.89

7.22

8.47
6.58

9.69
7.94

5.33

6.20

7.05

5.17

=0.6

7.00
8.75

8.24
9.93

5.68
7.56

7.86
6.03

6.16

9.07
7.36

7.51

10.25
8.62
6.71

11.42
9.84
8.08

6.85

8.22

7.53
9.51

9.38
11.16

11.09
12.77

8.77

9.99

11.20

12.77

14.33

6.99

8.37

7.67
9.66

9.52
11.31

11.24
12.92

7.80

9.66

11.38

H, 0.500² Pitch Belts

Page 71

Key to Horsepower Correction Factor

=1.0

570H
P.L. 57.00
114 Teeth

600H
P.L. 60.00
120 Teeth

630H
P.L. 63.00
126 Teeth

660H
P.L. 66.00
132 Teeth

700H
P.L. 70.00
140 Teeth

750H
P.L. 75.00
150 Teeth

800H
P.L. 80.00
160 Teeth

850H
P.L. 85.00
170 Teeth

900H
P.L. 90.00
180 Teeth

1000H
P.L. 100.00
200 Teeth

1100H
P.L. 110.00
220 Teeth

1250H
P.L. 125.00
250 Teeth

1400H
P.L. 140.00
280 Teeth

1700H
P.L. 170.00
340 Teeth

1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.048
1.050
1.053
1.056
1.067
1.071
1.077
1.083
1.091
1.091
1.100
1.100
1.105
1.111
1.111
1.125
1.125
1.143
1.143
1.143
1.154
1.158
1.167
1.167
1.182
1.188
1.200
1.200
1.200
1.222
1.222
1.231
1.238
1.250
1.250
1.250
1.250
1.263
1.273
1.286
1.286
1.300

540H
P.L. 54.00
108 Teeth

2.228
2.546
2.865
3.024
3.183
3.342
3.501
3.820
4.138
4.456
4.775
5.093
5.730
6.366
7.003
7.639
3.501
3.342
3.183
3.024
5.093
4.775
4.456
4.138
3.820
7.639
3.501
7.003
3.342
3.183
6.366
2.865
5.730
2.546
3.820
5.093
4.775
3.501
3.342
4.456
4.138
3.024
3.820
5.730
7.639
3.501
7.003
5.093
4.138
3.183
4.775
6.366
9.549
3.820
4.456
2.865
5.730
4.138

510H
P.L. 51.00
102 Teeth

14
16
18
19
20
21
22
24
26
28
30
32
36
40
44
48
22
21
20
19
32
30
28
26
24
48
22
44
21
20
40
18
36
16
24
32
30
22
21
28
26
19
24
36
48
22
44
32
26
20
30
40
60
24
28
18
36
26

480H
P.L. 48.00
96 Teeth

2.228
2.546
2.865
3.024
3.183
3.342
3.501
3.820
4.138
4.456
4.775
5.093
5.730
6.366
7.003
7.639
3.342
3.183
3.024
2.865
4.775
4.456
4.138
3.820
3.501
7.003
3.183
6.366
3.024
2.865
5.730
2.546
5.093
2.228
3.342
4.456
4.138
3.024
2.865
3.820
3.501
2.546
3.183
4.775
6.366
2.865
5.730
4.138
3.342
2.546
3.820
5.093
7.639
3.024
3.501
2.228
4.456
3.183

450H
P.L. 45.00
90 Teeth

14
16
18
19
20
21
22
24
26
28
30
32
36
40
44
48
21
20
19
18
30
28
26
24
22
44
20
40
19
18
36
16
32
14
21
28
26
19
18
24
22
16
20
30
40
18
36
26
21
16
24
32
48
19
22
14
28
20

420H
P.L. 42.00
84 Teeth

3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3450
3293
3286
3278
3268
3234
3220
3204
3185
3163
3163
3136
3136
3121
3105
3105
3067
3067
3019
3019
3019
2990
2980
2957
2957
2919
2905
2875
2875
2875
2823
2823
2803
2787
2760
2760
2760
2760
2731
2711
2683
2683
2654

390H
P.L. 39.00
78 Teeth

1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1670
1667
1663
1658
1641
1633
1625
1615
1604
1604
1591
1591
1583
1575
1575
1556
1556
1531
1531
1531
1517
1511
1500
1500
1481
1474
1458
1458
1458
1432
1432
1422
1413
1400
1400
1400
1400
1385
1375
1361
1361
1346

360H
P.L. 36.00
72 Teeth

1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1160
1107
1105
1102
1099
1088
1083
1077
1071
1063
1063
1055
1055
1050
1044
1044
1031
1031
1015
1015
1015
1005
1002
994
994
982
977
967
967
967
949
949
943
937
928
928
928
928
918
911
902
902
892

Pitch
Pitch
No. of diam. No. of diam. Speed
grooves inches grooves inches Ratio

330H
P.L. 33.00
66 Teeth

3450
RPM

300H
P.L. 30.00
60 Teeth

1750
RPM

DriveN

270H
P.L. 27.00
54 Teeth

The Driving Force in Power Transmission.

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

240H
P.L. 24.00
48 Teeth

DriveN Speed
For motor speed of

Drive Selection Table

8.50
8.00
7.50
7.25
7.00
6.75
6.50
6.00
5.50
5.00

10.00
9.50
9.00
8.75
8.50
8.25
8.00
7.50
7.00
6.50
6.00
5.50

11.50
11.00
10.50
10.25
10.00
9.75
9.50
9.00
8.50
8.00
7.50
7.00

13.00
12.50
12.00
11.75
11.50
11.25
11.00
10.50
10.00
9.50
9.00
8.50
7.50

14.50
14.00
13.50
13.25
13.00
12.75
12.50
12.00
11.50
11.00
10.50
10.00
9.00
8.00

16.00
15.50
15.00
14.75
14.50
14.25
14.00
13.50
13.00
12.50
12.00
11.50
10.50
9.50
8.50

6.63
6.87
7.12
7.37
5.25
5.75
6.25

8.13
8.37
8.62
8.87
5.75
6.25
6.75
7.25
7.75

9.63
9.87
10.12
10.37
7.25
7.75
8.25
8.75
9.25

11.13
11.37
11.62
11.87
8.75
9.25
9.75
10.25
10.75

12.63
12.88
13.12
13.37
10.25
10.75
11.25
11.75
12.25

6.75

8.25

9.75

11.25

7.00
7.25

8.50
8.75

10.00
10.25

7.75

9.25

8.25
6.37
4.99
6.87
7.12
5.49
5.99
7.62
6.49

9.75
7.87
5.99
6.49
8.37
8.62
6.99
7.49
9.12
7.99

10.75
6.49
11.25
9.37
7.49
7.99
9.87
10.12
8.49
8.99
10.62
9.49
6.73

11.50
11.75
6.99
12.25
7.99
12.75
10.87
8.99
9.49
11.37
11.62
9.99
10.50
12.12
11.00
8.24

12.75
7.49
13.00
13.25
8.49
13.75
9.49
14.25
12.37
10.50
11.00
12.87
13.12
11.50
12.00
13.62
12.50
9.74

6.99

8.49

10.00

11.50

6.11
7.49
5.23

6.23
7.61
8.99
6.73

7.74
9.12
10.50
8.24

9.24
10.62
12.00
9.74
7.47

13.00
7.97
10.74
12.12
13.50
11.24
8.98

14.13
14.38
14.62
14.87
11.75
12.25
12.75
13.25
13.75
7.99
14.25
8.99
14.50
14.75
9.99
15.25
11.00
15.75
13.87
12.00
12.50
14.37
14.62
13.00
13.50
15.12
14.00
11.24
8.48
14.50
9.48
12.24
13.62
15.00
12.74
10.48

17.50
17.00
16.50
16.25
16.00
15.75
15.50
15.00
14.50
14.00
13.50
13.00
12.00
11.00
10.00
9.00
15.63
15.88
16.12
16.37
13.25
13.75
14.25
14.75
15.25
9.49
15.75
10.50
16.00
16.25
11.50
16.75
12.50
17.25
15.37
13.50
14.00
15.87
16.12
14.50
15.00
16.62
15.50
12.74
9.98
16.00
10.98
13.74
15.12
16.50
14.24
11.98

8.11
7.23
9.49
5.46
7.74

9.62
8.74
11.00
6.97
9.24

11.12
10.24
12.50
8.48
10.74

12.62
11.74
14.00
9.98
12.24

14.12
13.24
15.50
11.48
13.74

15.62
14.74
17.00
12.98
15.24

19.00
18.50
18.00
17.75
17.50
17.25
17.00
16.50
16.00
15.50
15.00
14.50
13.50
12.50
11.50
10.50
17.13
17.38
17.62
17.87
14.75
15.25
15.75
16.25
16.75
11.00
17.25
12.00
17.50
17.75
13.00
18.25
14.00
18.75
16.87
15.00
15.50
17.37
17.62
16.00
16.50
18.12
17.00
14.24
11.48
17.50
12.48
15.24
16.62
18.00
15.74
13.49
8.95
17.12
16.24
18.50
14.49
16.74

20.50
20.00
19.50
19.25
19.00
18.75
18.50
18.00
17.50
17.00
16.50
16.00
15.00
14.00
13.00
12.00
18.63
18.88
19.12
19.37
16.25
16.75
17.25
17.75
18.25
12.50
18.75
13.50
19.00
19.25
14.50
19.75
15.50
20.25
18.37
16.50
17.00
18.87
19.12
17.50
18.00
19.62
18.50
15.74
12.98
19.00
13.99
16.74
18.12
19.50
17.24
14.99
10.46
18.62
17.74
20.00
15.99
18.24

22.00
21.50
21.00
20.75
20.50
20.25
20.00
19.50
19.00
18.50
18.00
17.50
16.50
15.50
14.50
13.50
20.13
20.38
20.62
20.87
17.75
18.25
18.75
19.25
19.75
14.00
20.25
15.00
20.50
20.75
16.00
21.25
17.00
21.75
19.87
18.00
18.50
20.37
20.62
19.00
19.50
21.12
20.00
17.24
14.49
20.50
15.49
18.24
19.62
21.00
18.74
16.49
11.96
20.12
19.24
21.50
17.49
19.74

23.50
23.00
22.50
22.25
22.00
21.75
21.50
21.00
20.50
20.00
19.50
19.00
18.00
17.00
16.00
15.00
21.63
21.88
22.12
22.37
19.25
19.75
20.25
20.75
21.25
15.50
21.75
16.50
22.00
22.25
17.50
22.75
18.50
23.25
21.37
19.50
20.00
21.87
22.12
20.50
21.00
22.62
21.50
18.74
15.99
22.00
16.99
19.74
21.12
22.50
20.24
17.99
13.47
21.62
20.75
23.00
18.99
21.24

25.00
24.50
24.00
23.75
23.50
23.25
23.00
22.50
22.00
21.50
21.00
20.50
19.50
18.50
17.50
16.50
23.13
23.38
23.62
23.87
20.75
21.25
21.75
22.25
22.75
17.00
23.25
18.00
23.50
23.75
19.00
24.25
20.00
24.75
22.87
21.00
21.50
23.37
23.62
22.00
22.50
24.12
23.00
20.24
17.49
23.50
18.49
21.24
22.62
24.00
21.74
19.49
14.97
23.12
22.25
24.50
20.49
22.75

26.50
26.00
25.50
25.25
25.00
24.75
24.50
24.00
23.50
23.00
22.50
22.00
21.00
20.00
19.00
18.00
24.63
24.88
25.12
25.37
22.25
22.75
23.25
23.75
24.25
18.50
24.75
19.50
25.00
25.25
20.50
25.75
21.50
26.25
24.37
22.50
23.00
24.87
25.12
23.50
24.00
25.62
24.50
21.74
18.99
25.00
19.99
22.74
24.12
25.50
23.24
20.99
16.47
24.62
23.75
26.00
21.99
24.25

28.00
27.50
27.00
26.75
26.50
26.25
26.00
25.50
25.00
24.50
24.00
23.50
22.50
21.50
20.50
19.50
26.13
26.38
26.62
26.87
23.75
24.25
24.75
25.25
25.75
20.00
26.25
21.00
26.50
26.75
22.00
27.25
23.00
27.75
25.87
24.00
24.50
26.37
26.62
25.00
25.50
27.12
26.00
23.24
20.49
26.50
21.49
24.25
25.62
27.00
24.74
22.49
17.98
26.12
25.25
27.50
23.49
25.75

29.50
29.00
28.50
28.25
28.00
27.75
27.50
27.00
26.50
26.00
25.50
25.00
24.00
23.00
22.00
21.00
27.63
27.88
28.12
28.37
25.25
25.75
26.25
26.75
27.25
21.50
27.75
22.50
28.00
28.25
23.50
28.75
24.50
29.25
27.37
25.50
26.00
27.87
28.12
26.50
27.00
28.62
27.50
24.74
21.99
28.00
22.99
25.75
27.12
28.50
26.25
23.99
19.48
27.62
26.75
29.00
24.99
27.25

31.50
31.00
30.50
30.25
30.00
29.75
29.50
29.00
28.50
28.00
27.50
27.00
26.00
25.00
24.00
23.00
29.63
29.88
30.12
30.37
27.25
27.75
28.25
28.75
29.25
23.50
29.75
24.50
30.00
30.25
25.50
30.75
26.50
31.25
29.37
27.50
28.00
29.87
30.12
28.50
29.00
30.62
29.50
26.75
23.99
30.00
24.99
27.75
29.12
30.50
28.25
25.99
21.48
29.62
28.75
31.00
26.99
29.25

34.00
33.50
33.00
32.75
32.50
32.25
32.00
31.50
31.00
30.50
30.00
29.50
28.50
27.50
26.50
25.50
32.13
32.38
32.62
32.87
29.75
30.25
30.75
31.25
31.75
26.00
32.25
27.00
32.50
32.75
28.00
33.25
29.00
33.75
31.87
30.00
30.50
32.37
32.62
31.00
31.50
33.12
32.00
29.25
26.49
32.50
27.49
30.25
31.62
33.00
30.75
28.49
23.98
32.12
31.25
33.50
29.49
31.75

36.50
36.00
35.50
35.25
35.00
34.75
34.50
34.00
33.50
33.00
32.50
32.00
31.00
30.00
29.00
28.00
34.63
34.88
35.12
35.37
32.25
32.75
33.25
33.75
34.25
28.50
34.75
29.50
35.00
35.25
30.50
35.75
31.50
36.25
34.37
32.50
33.00
34.87
35.12
33.50
34.00
35.62
34.50
31.75
28.99
35.00
29.99
32.75
34.12
35.50
33.25
30.99
26.48
34.62
33.75
36.00
31.99
34.25

39.00
38.50
38.00
37.75
37.50
37.25
37.00
36.50
36.00
35.50
35.00
34.50
33.50
32.50
31.50
30.50
37.13
37.38
37.62
37.87
34.75
35.25
35.75
36.25
36.75
31.00
37.25
32.00
37.50
37.75
33.00
38.25
34.00
38.75
36.87
35.00
35.50
37.37
37.62
36.00
36.50
38.12
37.00
34.25
31.49
37.50
32.49
35.25
36.62
38.00
35.75
33.49
28.98
37.12
36.25
38.50
34.49
36.75

41.50
41.00
40.50
40.25
40.00
39.75
39.50
39.00
38.50
38.00
37.50
37.00
36.00
35.00
34.00
33.00
39.63
39.88
40.12
40.37
37.25
37.75
38.25
38.75
39.25
33.50
39.75
34.50
40.00
40.25
35.50
40.75
36.50
41.25
39.37
37.50
38.00
39.87
40.12
38.50
39.00
40.62
39.50
36.75
33.99
40.00
34.99
37.75
39.12
40.50
38.25
35.99
31.49
39.62
38.75
41.00
36.99
39.25

46.50
46.00
45.50
45.25
45.00
44.75
44.50
44.00
43.50
43.00
42.50
42.00
41.00
40.00
39.00
38.00
44.63
44.88
45.12
45.37
42.25
42.75
43.25
43.75
44.25
38.50
44.75
39.50
45.00
45.25
40.50
45.75
41.50
46.25
44.37
42.50
43.00
44.87
45.12
43.50
44.00
45.62
44.50
41.75
39.00
45.00
39.99
42.75
44.12
45.50
43.25
41.00
36.49
44.62
43.75
46.00
42.00
44.25

51.50
51.00
50.50
50.25
50.00
49.75
49.50
49.00
48.50
48.00
47.50
47.00
46.00
45.00
44.00
43.00
49.63
49.88
50.12
50.37
47.25
47.75
48.25
48.75
49.25
43.50
49.75
44.50
50.00
50.25
45.50
50.75
46.50
51.25
49.37
47.50
48.00
49.87
50.12
48.50
49.00
50.62
49.50
46.75
44.00
50.00
45.00
47.75
49.12
50.50
48.25
46.00
41.49
49.62
48.75
51.00
47.00
49.25

59.00
58.50
58.00
57.75
57.50
57.25
57.00
56.50
56.00
55.50
55.00
54.50
53.50
52.50
51.50
50.50
57.13
57.38
57.62
57.87
54.75
55.25
55.75
56.25
56.75
51.00
57.25
52.00
57.50
57.75
53.00
58.25
54.00
58.75
56.87
55.00
55.50
57.37
57.62
56.00
56.50
58.12
57.00
54.25
51.50
57.50
52.50
55.25
56.62
58.00
55.75
53.50
48.99
57.12
56.25
58.50
54.50
56.75

66.50
66.00
65.50
65.25
65.00
64.75
64.50
64.00
63.50
63.00
62.50
62.00
61.00
60.00
59.00
58.00
64.63
64.88
65.12
65.37
62.25
62.75
63.25
63.75
64.25
58.50
64.75
59.50
65.00
65.25
60.50
65.75
61.50
66.25
64.37
62.50
63.00
64.87
65.12
63.50
64.00
65.62
64.50
61.75
59.00
65.00
60.00
62.75
64.12
65.50
63.25
61.00
56.49
64.62
63.75
66.00
62.00
64.25

81.50
81.00
80.50
80.25
80.00
79.75
79.50
79.00
78.50
78.00
77.50
77.00
76.00
75.00
74.00
73.00
79.63
79.88
80.12
80.37
77.25
77.75
78.25
78.75
79.25
73.50
79.75
74.50
80.00
80.25
75.50
80.75
76.50
81.25
79.37
77.50
78.00
79.87
80.12
78.50
79.00
80.62
79.50
76.75
74.00
80.00
75.00
77.75
79.12
80.50
78.25
76.00
71.49
79.62
78.75
81.00
77.00
79.25

6.61
5.73
7.99
6.23

Key to Horsepower Correction Factor

=1.0

9.36
10.24

10.86
11.74
6.93
8.71
10.48
12.24
10.10
7.94
10.98
9.72
7.16
10.60
12.11
11.48
10.22
8.95

12.36
13.24
8.45
10.22
11.98
13.74
11.60
9.45
12.48
11.22
8.68
12.10
13.61
12.98
11.72
10.46
7.90

13.86
14.74
9.95
11.72
13.49
15.24
13.11
10.96
13.99
12.73
10.19
13.61
15.12
14.49
13.23
11.96
9.41

5.97
7.74
5.58

5.69
7.47
9.24
7.09

6.47
5.19

7.97
6.70

7.21
8.98
10.74
8.60
6.43
9.48
8.21

6.08
7.60
6.97
5.69

7.59
9.11
8.48
7.21
5.92

9.10
10.61
9.98
8.71
7.44

5.30

6.82

6.20
7.47

7.71
8.98

8.33
6.66
9.22
10.48

9.72
7.67

9.84
8.17
10.72
11.98
7.39
10.34
9.95
6.59
11.22
9.18

11.34
9.69
12.22
13.49
8.91
11.84
11.46
8.12
12.73
10.69

5.81
5.42

7.32
6.93

8.83
8.45

6.70

8.21
6.15

5.92

7.44

8.95
6.88

10.46
8.40

5.53

7.05

7.21

8.71
6.26

8.56
6.08
10.22
7.78

6.43

7.94

5.64
4.83

6.93
6.15

1700H
P.L. 170.00
340 Teeth

7.86
8.74

1400H
P.L. 140.00
280 Teeth

6.35
7.23

1250H
P.L. 125.00
250 Teeth

12.37
9.98

1100H
P.L. 110.00
220 Teeth

10.87
8.48

1000H
P.L. 100.00
200 Teeth

9.37
6.97

900H
P.L. 90.00
180 Teeth

7.87
5.46

850H
P.L. 85.00
170 Teeth

14.87
14.24
13.36
12.48
10.72
8.95
15.37
12.98

800H
P.L. 80.00
160 Teeth

13.37
12.74
11.86
10.98
9.22
7.44
13.87
11.48

750H
P.L. 75.00
150 Teeth

11.87
11.24
10.36
9.48
7.71

700H
P.L. 70.00
140 Teeth

10.37
9.74
8.86
7.97
6.20

660H
P.L. 66.00
132 Teeth

8.87
8.24
7.35
6.47

630H
P.L. 63.00
126 Teeth

7.36
6.73
5.85
4.96

600H
P.L. 60.00
120 Teeth

1.313
1.333
1.333
1.333
1.333
1.333
1.357
1.364
1.364
1.368
1.375
1.375
1.385
1.400
1.429
1.429
1.429
1.444
1.455
1.467
1.474
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.524
1.538
1.556
1.571
1.571
1.579
1.600
1.600
1.625
1.636
1.636
1.667
1.667
1.667
1.684
1.692
1.714
1.714
1.714
1.750
1.750
1.778
1.800
1.800
1.818
1.833
1.846
1.857
1.875
1.875

570H
P.L. 57.00
114 Teeth

3.342
3.820
4.456
5.093
6.366
7.639
3.024
4.775
9.549
4.138
3.501
7.003
5.730
4.456
3.183
4.775
6.366
4.138
5.093
7.003
4.456
3.342
3.820
4.775
5.730
7.639
9.549
11.459
5.093
6.366
4.456
3.501
7.003
4.775
5.093
7.639
4.138
5.730
11.459
4.775
6.366
9.549
5.093
7.003
3.820
5.730
7.639
4.456
13.369
5.093
5.730
11.459
6.366
7.003
7.639
4.138
4.775
9.549

540H
P.L. 54.00
108 Teeth

21
24
28
32
40
48
19
30
60
26
22
44
36
28
20
30
40
26
32
44
28
21
24
30
36
48
60
72
32
40
28
22
44
30
32
48
26
36
72
30
40
60
32
44
24
36
48
28
84
32
36
72
40
44
48
26
30
60

510H
P.L. 51.00
102 Teeth

2.546
2.865
3.342
3.820
4.775
5.730
2.228
3.501
7.003
3.024
2.546
5.093
4.138
3.183
2.228
3.342
4.456
2.865
3.501
4.775
3.024
2.228
2.546
3.183
3.820
5.093
6.366
7.639
3.342
4.138
2.865
2.228
4.456
3.024
3.183
4.775
2.546
3.501
7.003
2.865
3.820
5.730
3.024
4.138
2.228
3.342
4.456
2.546
7.639
2.865
3.183
6.366
3.501
3.820
4.138
2.228
2.546
5.093

480H
P.L. 48.00
96 Teeth

16
18
21
24
30
36
14
22
44
19
16
32
26
20
14
21
28
18
22
30
19
14
16
20
24
32
40
48
21
26
18
14
28
19
20
30
16
22
44
18
24
36
19
26
14
21
28
16
48
18
20
40
22
24
26
14
16
32

19.37
18.74
17.87
16.99
15.23
13.47
19.87
17.49
10.93
18.37
19.24
14.47
16.23
17.99
19.74
17.61
15.47
18.49
17.23
14.71
18.11
19.62
18.99
17.73
16.47
13.94
11.39

17.97
15.95
11.85
17.59
15.18
19.23
16.83
14.41
18.48

20.87
20.24
19.37
18.49
16.73
14.97
21.37
18.99
12.43
19.87
20.75
15.97
17.73
19.49
21.24
19.11
16.97
19.99
18.73
16.21
19.61
21.12
20.49
19.23
17.97
15.45
12.90
10.32
18.85
17.21
19.73
20.99
16.45
19.35
18.98
15.68
20.23
18.22
10.77
19.48
17.45
13.36
19.10
16.69
20.73
18.34
15.92
19.98

22.37
21.74
20.87
19.99
18.23
16.47
22.87
20.49
13.94
21.37
22.25
17.47
19.23
20.99
22.75
20.61
18.48
21.49
20.23
17.71
21.11
22.62
21.99
20.73
19.48
16.95
14.41
11.85
20.36
18.72
21.24
22.49
17.95
20.86
20.48
17.19
21.74
19.72
12.30
20.98
18.96
14.88
20.60
18.19
22.24
19.84
17.43
21.48

17.71
16.95
9.66
16.19
15.42
14.65
18.98
18.22
12.30

19.22
18.46
11.21
17.69
16.92
16.16
20.48
19.72
13.82

20.72
19.96
12.75
19.20
18.43
17.66
21.98
21.22
15.34

23.87
23.24
22.37
21.49
19.73
17.97
24.37
21.99
15.45
22.87
23.75
18.98
20.73
22.49
24.25
22.11
19.98
22.99
21.74
19.22
22.61
24.12
23.49
22.24
20.98
18.46
15.92
13.36
21.86
20.22
22.74
23.99
19.46
22.36
21.98
18.70
23.24
21.22
13.82
22.48
20.46
16.39
22.10
19.70
23.74
21.34
18.93
22.98
11.65
22.22
21.46
14.27
20.70
19.94
19.17
23.48
22.72
16.85

25.37
24.75
23.87
22.99
21.23
19.48
25.87
23.49
16.95
24.37
25.25
20.48
22.24
23.99
25.75
23.61
21.48
24.49
23.24
20.72
24.11
25.62
24.99
23.74
22.48
19.96
17.43
14.88
23.36
21.72
24.24
25.49
20.96
23.86
23.48
20.20
24.74
22.72
15.34
23.98
21.96
17.90
23.60
21.20
25.24
22.84
20.44
24.48
13.19
23.72
22.96
15.79
22.20
21.44
20.68
24.98
24.22
18.36

26.87
26.25
25.37
24.49
22.74
20.98
27.37
24.99
18.46
25.87
26.75
21.98
23.74
25.49
27.25
25.11
22.98
25.99
24.74
22.22
25.62
27.12
26.49
25.24
23.98
21.46
18.93
16.39
24.86
23.22
25.74
26.99
22.46
25.36
24.98
21.70
26.24
24.22
16.85
25.48
23.47
19.41
25.10
22.70
26.74
24.35
21.94
25.98
14.72
25.23
24.47
17.31
23.71
22.94
22.18
26.48
25.73
19.88

28.37
27.75
26.87
25.99
24.24
22.48
28.87
26.49
19.96
27.37
28.25
23.48
25.24
26.99
28.75
26.62
24.48
27.49
26.24
23.72
27.12
28.62
27.99
26.74
25.48
22.97
20.44
17.90
26.36
24.73
27.24
28.49
23.97
26.86
26.48
23.21
27.74
25.73
18.36
26.98
24.97
20.91
26.60
24.21
28.24
25.85
23.45
27.48
16.25
26.73
25.97
18.83
25.21
24.45
23.69
27.98
27.23
21.38

30.37
29.75
28.87
27.99
26.24
24.48
30.87
28.49
21.96
29.37
30.25
25.48
27.24
28.99
30.75
28.62
26.48
29.49
28.24
25.73
29.12
30.62
29.99
28.74
27.48
24.97
22.44
19.91
28.36
26.73
29.24
30.49
25.97
28.86
28.48
25.21
29.74
27.73
20.38
28.98
26.97
22.92
28.61
26.21
30.24
27.85
25.45
29.49
18.28
28.73
27.97
20.84
27.21
26.45
25.69
29.98
29.23
23.39

32.87
32.25
31.37
30.49
28.74
26.98
33.37
30.99
24.47
31.87
32.75
27.98
29.74
31.49
33.25
31.12
28.98
31.99
30.74
28.23
31.62
33.12
32.49
31.24
29.98
27.47
24.95
22.42
30.86
29.23
31.74
32.99
28.47
31.36
30.99
27.71
32.24
30.23
22.89
31.49
29.47
25.43
31.11
28.71
32.74
30.35
27.96
31.99
20.80
31.23
30.47
23.36
29.72
28.96
28.20
32.49
31.73
25.90

35.37
34.75
33.87
32.99
31.24
29.48
35.87
33.49
26.97
34.37
35.25
30.48
32.24
33.99
35.75
33.62
31.49
34.49
33.24
30.73
34.12
35.62
34.99
33.74
32.49
29.97
27.45
24.93
33.36
31.73
34.24
35.49
30.97
33.86
33.49
30.22
34.74
32.73
25.40
33.99
31.97
27.93
33.61
31.22
35.24
32.85
30.46
34.49
23.32
33.73
32.98
25.87
32.22
31.46
30.70
34.99
34.23
28.41

37.87
37.25
36.37
35.49
33.74
31.99
38.37
35.99
29.47
36.87
37.75
32.99
34.74
36.49
38.25
36.12
33.99
36.99
35.74
33.23
36.62
38.12
37.49
36.24
34.99
32.48
29.96
27.43
35.86
34.23
36.74
38.00
33.48
36.36
35.99
32.72
37.24
35.23
27.91
36.49
34.48
30.44
36.11
33.72
37.74
35.35
32.96
36.99
25.84
36.23
35.48
28.39
34.72
33.96
33.20
37.49
36.73
30.92

40.37
39.75
38.87
37.99
36.24
34.49
40.87
38.49
31.97
39.37
40.25
35.49
37.24
39.00
40.75
38.62
36.49
39.49
38.24
35.73
39.12
40.62
40.00
38.74
37.49
34.98
32.46
29.94
38.37
36.73
39.24
40.50
35.98
38.86
38.49
35.22
39.74
37.73
30.42
38.99
36.98
32.94
38.61
36.22
40.24
37.86
35.46
39.49
28.36
38.73
37.98
30.90
37.22
36.46
35.71
39.99
39.23
33.43

45.37
44.75
43.87
43.00
41.24
39.49
45.87
43.50
36.98
44.37
45.25
40.49
42.24
44.00
45.75
43.62
41.49
44.50
43.24
40.73
44.12
45.62
45.00
43.74
42.49
39.98
37.47
34.95
43.37
41.74
44.24
45.50
40.98
43.87
43.49
40.22
44.74
42.74
35.43
43.99
41.98
37.95
43.61
41.22
45.24
42.86
40.47
44.49
33.38
43.74
42.98
35.91
42.23
41.47
40.71
44.99
44.24
38.44

50.37
49.75
48.87
48.00
46.24
44.49
50.87
48.50
41.98
49.37
50.25
45.49
47.24
49.00
50.75
48.62
46.49
49.50
48.24
45.74
49.12
50.62
50.00
48.74
47.49
44.98
42.47
39.95
48.37
46.74
49.24
50.50
45.98
48.87
48.49
45.23
49.74
47.74
40.44
48.99
46.98
42.96
48.61
46.23
50.24
47.86
45.47
49.49
38.39
48.74
47.98
40.92
47.23
46.47
45.72
49.99
49.24
43.44

57.87
57.25
56.37
55.50
53.74
51.99
58.37
56.00
49.48
56.87
57.75
52.99
54.74
56.50
58.25
56.12
53.99
57.00
55.74
53.24
56.62
58.12
57.50
56.24
54.99
52.48
49.98
47.46
55.87
54.24
56.74
58.00
53.48
56.37
55.99
52.73
57.24
55.24
47.95
56.49
54.49
50.46
56.12
53.73
57.74
55.36
52.98
56.99
45.91
56.24
55.49
48.43
54.73
53.98
53.22
57.49
56.74
50.95

65.37
64.75
63.87
63.00
61.24
59.49
65.87
63.50
56.99
64.37
65.25
60.49
62.24
64.00
65.75
63.62
61.49
64.50
63.25
60.74
64.12
65.62
65.00
63.74
62.49
59.99
57.48
54.97
63.37
61.74
64.25
65.50
60.99
63.87
63.49
60.23
64.75
62.74
55.46
63.99
61.99
57.97
63.62
61.23
65.25
62.86
60.48
64.49
53.42
63.74
62.99
55.94
62.23
61.48
60.73
64.99
64.24
58.46

80.37
79.75
78.87
78.00
76.25
74.49
80.87
78.50
71.99
79.37
80.25
75.49
77.25
79.00
80.75
78.62
76.49
79.50
78.25
75.74
79.12
80.62
80.00
78.75
77.49
74.99
72.48
69.97
78.37
76.74
79.25
80.50
75.99
78.87
78.49
75.24
79.75
77.74
70.46
78.99
76.99
72.97
78.62
76.24
80.25
77.87
75.48
79.49
68.44
78.74
77.99
70.95
77.24
76.48
75.73
79.99
79.24
73.47

450H
P.L. 45.00
90 Teeth

2629
2588
2588
2588
2588
2588
2542
2530
2530
2521
2509
2509
2492
2464
2415
2415
2415
2388
2372
2352
2341
2300
2300
2300
2300
2300
2300
2300
2264
2243
2218
2195
2195
2185
2156
2156
2123
2108
2108
2070
2070
2070
2048
2039
2013
2013
2013
1971
1971
1941
1917
1917
1898
1882
1869
1858
1840
1840

Speed
Ratio

420H
P.L. 42.00
84 Teeth

1333
1313
1313
1313
1313
1313
1289
1283
1283
1279
1273
1273
1264
1250
1225
1225
1225
1212
1203
1193
1188
1167
1167
1167
1167
1167
1167
1167
1148
1138
1125
1114
1114
1108
1094
1094
1077
1069
1069
1050
1050
1050
1039
1034
1021
1021
1021
1000
1000
984
972
972
963
955
948
942
933
933

Pitch
diam.
inches

390H
P.L. 39.00
78 Teeth

884
870
870
870
870
870
855
851
851
848
844
844
838
829
812
812
812
803
798
791
787
773
773
773
773
773
773
773
761
754
746
738
738
735
725
725
714
709
709
696
696
696
689
685
677
677
677
663
663
653
644
644
638
633
628
625
619
619

Pitch
No. of diam. No. of
grooves inches grooves

360H
P.L. 36.00
72 Teeth

3450
RPM

330H
P.L. 33.00
66 Teeth

1750
RPM

DriveN

300H
P.L. 30.00
60 Teeth

The Gates Rubber Company

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

270H
P.L. 27.00
54 Teeth

DriveN Speed
For motor speed of

Drive Selection Table
240H
P.L. 24.00
48 Teeth

Page 72

H, 0.500² Pitch Belts

16.37
15.74
14.87
13.99
12.22
10.46
16.87
14.49
15.36
16.24
11.46
13.23
14.99
16.74
14.61
12.46
15.49
14.23
11.70
15.11
16.62
15.99
14.73
13.47
10.93
8.35

17.87
17.24
16.37
15.49
13.73
11.96
18.37
15.99
9.41
16.87
17.74
12.96
14.73
16.49
18.24
16.11
13.97
16.99
15.73
13.20
16.61
18.12
17.49
16.23
14.97
12.44
9.87

12.85
11.19
13.73
14.99
10.42
13.35
12.96
9.64
14.23
12.20

14.35
12.70
15.23
16.49
11.93
14.85
14.47
11.16
15.73
13.70

15.85
14.21
16.73
17.99
13.44
16.35
15.97
12.67
17.23
15.21

17.35
15.71
18.23
19.49
14.95
17.85
17.47
14.18
18.73
16.71

11.96
9.92

13.47
11.43

9.45

10.07
7.61
11.72
9.30
6.81
10.96

11.58
9.14
13.23
10.81
8.35
12.46

13.08
10.65
14.73
12.32
9.87
13.97

14.97
12.94
8.79
14.59
12.17
16.23
13.82
11.39
15.47

16.47
14.44
10.32
16.09
13.67
17.73
15.33
12.90
16.97

7.16
6.37

8.68
7.90

10.19
9.41

11.70
10.93

13.20
12.43

14.71
13.94

16.21
15.45

5.57

7.11
6.30

8.45
7.67

9.95
9.18

8.63
7.84
7.03
11.46
10.69

10.15
9.36
8.57
12.96
12.20

11.66
10.88
10.10
14.47
13.70
7.67

13.17
12.40
11.62
15.97
15.21
9.23

14.68
13.91
13.13
17.47
16.71
10.77

H, 0.500² Pitch Belts

Page 73

Key to Horsepower Correction Factor

=1.0

600H
P.L. 60.00
120 Teeth

630H
P.L. 63.00
126 Teeth

660H
P.L. 66.00
132 Teeth

700H
P.L. 70.00
140 Teeth

750H
P.L. 75.00
150 Teeth

800H
P.L. 80.00
160 Teeth

850H
P.L. 85.00
170 Teeth

900H
P.L. 90.00
180 Teeth

1000H
P.L. 100.00
200 Teeth

1100H
P.L. 110.00
220 Teeth

1250H
P.L. 125.00
250 Teeth

1400H
P.L. 140.00
280 Teeth

1700H
P.L. 170.00
340 Teeth

23.08
22.32
13.63
24.73
23.97
23.21
22.44
21.68
20.91
18.60
16.25

20.65
21.42
17.77

21.80
14.06
22.56
24.47
18.83
21.15
11.76
21.92
22.68
23.45
16.70
24.21
21.27
19.06
22.03
14.49
21.38
16.92
12.17
22.15
22.92
19.29

24.59
23.83
15.16
26.23
25.47
24.71
23.95
23.18
22.42
20.11
17.77
12.93
23.30
15.61
24.07
25.97
20.34
22.66
13.35
23.42
24.19
24.95
18.22
25.71
22.77
20.57
23.54
16.04
22.89
18.45
13.77
23.66
24.43
20.80

26.09
25.33
16.70
27.73
26.97
26.21
25.45
24.69
23.92
21.62
19.29
14.49
24.81
17.14
25.57
27.47
21.85
24.16
14.92
24.93
25.69
26.45
19.74
27.21
24.28
22.08
25.05
17.58
24.40
19.97
15.35
25.16
25.93
22.32

28.09
27.33
18.73
29.73
28.97
28.21
27.45
26.69
25.93
23.63
21.31
16.56
26.81
19.18
27.57
29.47
23.86
26.17
16.99
26.93
27.69
28.46
21.77
29.21
26.29
24.10
27.05
19.63
26.41
22.00
17.43
27.17
27.94
24.33

19.99
22.18
15.61
13.35
20.11
10.94
18.00

21.50
23.69
17.14
14.92
21.62
12.58
19.52

23.01
25.19
18.67
16.48
23.13
14.19
21.03

24.52
26.69
20.20
18.02
24.63
15.77
22.55

26.52
28.70
22.22
20.07
26.64
17.86
24.56

19.37
14.28
11.97
20.14
16.58
18.83
16.70
14.49
12.18

20.88
15.82
13.56
21.65
18.11
20.34
18.22
16.04
13.77
11.34

22.39
17.36
15.14
23.16
19.63
21.85
19.74
17.58
15.35
12.99

23.90
18.89
16.69
24.66
21.15
23.36
21.26
19.12
16.91
14.60

25.40
20.42
18.24
26.17
22.66
24.87
22.78
20.65
18.46
16.19

18.09
15.28

19.60
16.81

10.74

12.38

21.11
18.33
11.53
13.98

22.62
19.86
13.19
15.56

24.13
21.38
14.81
17.12

25.64
22.89
16.40
18.68

27.41
22.45
20.29
28.17
24.68
26.88
24.80
22.68
20.51
18.29
13.46
27.65
24.91
18.50
20.73

30.59
29.84
21.26
32.23
31.47
30.72
29.96
29.20
28.44
26.14
23.83
19.12
29.32
21.72
30.08
31.97
26.38
28.68
19.56
29.44
30.20
30.96
24.29
31.72
28.80
26.61
29.56
22.17
28.91
24.52
20.00
29.68
30.44
26.85
15.42
29.03
31.20
24.75
22.62
29.15
20.44
27.08
15.83
29.92
24.98
22.84
30.68
27.20
29.39
27.31
25.21
23.07
20.88
16.23
30.16
27.43
21.09
23.29

33.10
32.34
23.79
34.73
33.98
33.22
32.46
31.70
30.94
28.65
26.34
21.66
31.82
24.25
32.58
34.48
28.89
31.18
22.11
31.94
32.70
33.46
26.81
34.22
31.30
29.12
32.06
24.70
31.42
27.04
22.56
32.18
32.95
29.36
18.08
31.54
33.70
27.28
25.16
31.66
23.00
29.60
18.50
32.42
27.51
25.39
33.19
29.71
31.90
29.83
27.74
25.61
23.44
18.92
32.66
29.95
23.66
25.84

35.60
34.84
26.31
37.23
36.48
35.72
34.96
34.21
33.45
31.16
28.86
24.20
34.33
26.77
35.09
36.98
31.40
33.69
24.65
34.45
35.21
35.96
29.33
36.72
33.81
31.63
34.57
27.23
33.93
29.56
25.10
34.69
35.45
31.87
20.70
34.05
36.21
29.79
27.69
34.17
25.55
32.11
21.13
34.93
30.03
27.92
35.69
32.23
34.41
32.34
30.26
28.15
26.00
21.55
35.17
32.46
26.22
28.37

38.10
37.34
28.82
39.73
38.98
38.22
37.47
36.71
35.95
33.67
31.37
26.73
36.83
29.29
37.59
39.48
33.90
36.19
27.18
36.95
37.71
38.47
31.84
39.22
36.31
34.14
37.07
29.75
36.43
32.08
27.64
37.19
37.95
34.38
23.29
36.55
38.71
32.31
30.22
36.67
28.09
34.62
23.72
37.43
32.54
30.45
38.19
34.74
36.91
34.85
32.78
30.68
28.54
24.16
37.67
34.97
28.77
30.90

43.10
42.35
33.85
44.74
43.98
43.23
42.47
41.71
40.96
38.68
36.39
31.77
41.84
34.32
42.59
44.48
38.92
41.20
32.23
41.96
42.71
43.47
36.86
44.23
41.32
39.16
42.08
34.79
41.44
37.10
32.70
42.20
42.96
39.40
28.42
41.56
43.71
37.34
35.26
41.68
33.16
39.64
28.86
42.44
37.57
35.49
43.20
39.75
41.92
39.87
37.81
35.72
33.61
29.31
42.68
39.99
33.84
35.95

48.11
47.35
38.87
49.74
48.98
48.23
47.47
46.72
45.96
43.68
41.40
36.80
46.84
39.34
47.60
49.48
43.93
46.20
37.27
46.96
47.72
48.47
41.88
49.23
46.33
44.17
47.08
39.82
46.45
42.12
37.74
47.20
47.96
44.41
33.51
46.57
48.72
42.36
40.29
46.69
38.20
44.65
33.96
47.45
42.59
40.52
48.21
44.77
46.93
44.89
42.83
40.76
38.66
34.41
47.69
45.01
38.89
40.99

55.61
54.85
46.39
57.24
56.49
55.73
54.98
54.22
53.47
51.19
48.92
44.34
54.34
46.87
55.10
56.99
51.44
53.71
44.81
54.47
55.22
55.98
49.40
56.73
53.83
51.68
54.59
47.35
53.95
49.64
45.28
54.71
55.47
51.92
41.10
54.08
56.22
49.88
47.82
54.20
45.75
52.16
41.56
54.96
50.12
48.06
55.71
52.28
54.44
52.40
50.35
48.29
46.22
42.02
55.20
52.52
46.45
48.53

63.11
62.36
53.91
64.74
63.99
63.23
62.48
61.73
60.97
58.70
56.43
51.86
61.85
54.39
62.60
64.49
58.95
61.22
52.34
61.97
62.73
63.48
56.91
64.23
61.34
59.19
62.09
54.87
61.46
57.15
52.81
62.22
62.97
59.43
48.66
61.58
63.73
57.39
55.35
61.70
53.29
59.67
49.13
62.46
57.63
55.58
63.22
59.79
61.95
59.92
57.87
55.82
53.76
49.59
62.70
60.04
53.99
56.06

78.11
77.36
68.93
79.74
78.99
78.24
77.48
76.73
75.98
73.71
71.44
66.89
76.85
69.41
77.61
79.49
73.96
76.22
67.37
76.98
77.73
78.48
71.93
79.24
76.35
74.20
77.10
69.90
76.47
72.17
67.85
77.22
77.98
74.44
63.74
76.59
78.73
72.42
70.38
76.71
68.33
74.69
64.21
77.47
72.66
70.62
78.22
74.81
76.96
74.93
72.90
70.86
68.81
64.69
77.71
75.05
69.05
71.10

4.94

6.48
5.67

8.01
7.22

9.53
8.74

11.04
10.26

12.55
11.78

14.06
13.29

15.57
14.80

17.07
16.31

6.66
5.86
5.04

8.17
7.39
6.59
5.78

9.69
8.91
8.12
7.33
6.51

11.19
10.42
9.64
8.86
8.06
7.25

12.70
11.93
11.16
10.38
9.59
8.79

14.21
13.44
12.67
11.89
11.11
10.32
7.89

15.71
14.95
14.18
13.41
12.63
11.85
9.45

17.21
16.45
15.68
14.92
14.14
13.36
10.99

18.72
17.96
17.19
16.42
15.65
14.88
12.52
10.09

20.22
19.46
18.69
17.93
17.16
16.39
14.05
11.65

6.62

8.17

9.70

11.23

12.74

14.26

15.77

17.28

6.37

5.89
7.90

7.44
9.41

8.97
10.93

10.49
12.43

7.46

9.01

12.01
13.94
8.10
10.55

13.52
15.45
9.66
12.07

15.03
16.95
11.21
13.59

16.54
18.46
12.75
15.11

18.05
19.96
14.27
16.62

5.26

5.99
6.81

6.73
7.55
8.35

8.28
9.08
9.87

9.81
10.61
11.39

11.34
12.12
12.90

12.86
13.64
14.41

6.08

7.61

9.14
5.99

10.65
7.57

12.17
9.12

6.83

8.39

9.92

13.68
10.66
8.31
11.45

15.18
12.19
9.88
12.97

14.37
15.15
15.92
8.93
16.69
13.71
11.43
14.49

15.88
16.66
17.43
10.51
18.19
15.22
12.97
16.00

17.39
18.17
18.93
12.08
19.70
16.74
14.50
17.51

6.09

7.67

9.23

10.77

12.30

13.82
9.13

15.34
10.72

5.34
6.20

6.94
7.76

8.50
9.30

10.04
10.83
6.90

11.56
12.35
8.51

13.09
13.87
10.09

14.60
15.38
11.65

7.03

6.19
8.57

7.78
10.10

9.34
11.62

10.88
13.13

12.41
14.65

6.29

7.89

9.45

10.99

12.52

7.10

8.72

10.30

11.86

13.41

14.94

16.47

5.55

7.15

8.71

10.26

11.79

13.31

14.83
9.54

16.35
11.14

6.41

7.98

9.52

6.49

8.10

11.06
7.20
9.66
7.29

12.58
8.82
11.21
8.93

14.10
10.41
12.75
10.51
8.08

15.61
11.97
14.27
12.08
9.74

17.13
13.52
15.79
13.63
11.35

17.86
12.72
10.34
18.64
15.05
17.31
15.17
12.93
10.54

7.36

8.93

10.48
7.39

12.01
9.03

13.54
10.62

15.06
12.19

16.58
13.74
9.04

5.47

4.80

5.75

=0.8

=0.6

570H
P.L. 57.00
114 Teeth

1.895
1.905
1.909
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.095
2.100
2.105
2.143
2.143
2.182
2.182
2.200
2.222
2.250
2.250
2.286
2.286
2.308
2.316
2.333
2.400
2.400
2.400
2.444
2.500
2.500
2.500
2.526
2.571
2.571
2.625
2.667
2.667
2.727
2.727
2.750
2.769
2.800
2.857
2.857
3.000
3.000
3.000
3.000
3.000
3.000
3.143
3.158
3.200
3.231

540H
P.L. 54.00
108 Teeth

5.730
6.366
13.369
4.456
5.093
5.730
6.366
7.003
7.639
9.549
11.459
15.279
7.003
13.369
6.366
4.775
9.549
7.639
15.279
7.003
6.366
5.730
11.459
5.093
7.639
9.549
7.003
13.369
7.639
11.459
15.279
7.003
6.366
9.549
19.099
7.639
5.730
11.459
13.369
7.639
15.279
9.549
19.099
7.003
11.459
13.369
6.366
9.549
7.639
9.549
11.459
13.369
15.279
19.099
7.003
9.549
15.279
13.369

510H
P.L. 51.00
102 Teeth

36
40
84
28
32
36
40
44
48
60
72
96
44
84
40
30
60
48
96
44
40
36
72
32
48
60
44
84
48
72
96
44
40
60
120
48
36
72
84
48
96
60
120
44
72
84
40
60
48
60
72
84
96
120
44
60
96
84

480H
P.L. 48.00
96 Teeth

3.024
3.342
7.003
2.228
2.546
2.865
3.183
3.501
3.820
4.775
5.730
7.639
3.342
6.366
3.024
2.228
4.456
3.501
7.003
3.183
2.865
2.546
5.093
2.228
3.342
4.138
3.024
5.730
3.183
4.775
6.366
2.865
2.546
3.820
7.639
3.024
2.228
4.456
5.093
2.865
5.730
3.501
7.003
2.546
4.138
4.775
2.228
3.342
2.546
3.183
3.820
4.456
5.093
6.366
2.228
3.024
4.775
4.138

450H
P.L. 45.00
90 Teeth

19
21
44
14
16
18
20
22
24
30
36
48
21
40
19
14
28
22
44
20
18
16
32
14
21
26
19
36
20
30
40
18
16
24
48
19
14
28
32
18
36
22
44
16
26
30
14
21
16
20
24
28
32
40
14
19
30
26

420H
P.L. 42.00
84 Teeth

1821
1811
1807
1725
1725
1725
1725
1725
1725
1725
1725
1725
1647
1643
1639
1610
1610
1581
1581
1568
1553
1533
1533
1509
1509
1495
1490
1479
1438
1438
1438
1411
1380
1380
1380
1366
1342
1342
1314
1294
1294
1265
1265
1255
1246
1232
1208
1208
1150
1150
1150
1150
1150
1150
1098
1093
1078
1068

Speed
Ratio

390H
P.L. 39.00
78 Teeth

924
919
917
875
875
875
875
875
875
875
875
875
835
833
831
817
817
802
802
795
788
778
778
766
766
758
756
750
729
729
729
716
700
700
700
693
681
681
667
656
656
642
642
636
632
625
613
613
583
583
583
583
583
583
557
554
547
542

Pitch
diam.
inches

360H
P.L. 36.00
72 Teeth

612
609
608
580
580
580
580
580
580
580
580
580
554
552
551
541
541
532
532
527
522
516
516
508
508
503
501
497
483
483
483
475
464
464
464
459
451
451
442
435
435
425
425
422
419
414
406
406
387
387
387
387
387
387
369
367
363
359

Pitch
No. of diam. No. of
grooves inches grooves

330H
P.L. 33.00
66 Teeth

3450
RPM

300H
P.L. 30.00
60 Teeth

1750
RPM

DriveN

270H
P.L. 27.00
54 Teeth

The Driving Force in Power Transmission.

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

240H
P.L. 24.00
48 Teeth

DriveN Speed
For motor speed of

Drive Selection Table

18.58
17.81

20.08
19.32
10.51
21.72
20.96
20.20
19.44
18.67
17.90
15.57
13.19

21.58
20.82
12.08
23.22
22.46
21.70
20.94
20.17
19.41
17.08
14.72

18.79
10.93
19.55
21.46
15.79
18.13

20.29
12.51
21.06
22.96
17.31
19.64

16.85
12.29

18.90
19.67
20.44
13.63
21.20
18.25
16.02
19.02
11.35
18.37
13.84

20.41
21.18
21.94
15.16
22.70
19.76
17.54
20.53
12.93
19.88
15.39

16.12
16.89
13.19

17.63
18.40
14.72

19.14
19.91
16.25

13.93
16.15
9.34

15.45
17.66
10.93

14.05

15.57

16.97
19.17
12.51
10.14
17.08

18.48
20.68
14.06
11.76
18.60

9.88

11.43

12.97
8.37

14.50
10.04

16.02
11.66

17.54
13.25

19.06
14.82

9.24

10.94

12.58

20.57
16.37
11.73
14.19

22.08
17.91
13.39
15.77

23.60
19.45
15.01
17.34

25.10
20.98
16.61
18.89

8.47

10.14

11.76

13.35

10.94

12.51

14.06

15.61

14.92
10.18
17.14

16.48
11.92
18.67

18.02
13.59
20.20

19.56
15.22
21.72

21.09
16.82
23.24

8.56

10.24

11.87
9.43

13.46
11.14

15.03
12.79

16.59
14.40

18.13
15.98

19.67
17.55

21.20
19.11

8.66

10.34

11.97
9.52

13.56
11.24

15.14
12.89
10.37

16.69
14.50
12.12

18.24
16.09
13.79

19.78
17.66
15.42

21.32
19.22
17.03

11.14

12.72

9.62
14.28

11.34
15.83

12.99
17.36

14.60
18.89

16.19
20.42

17.76
21.94

8.85

10.54

9.71
12.18

11.43
13.77

10.56
13.09
15.35
10.65

12.31
14.71
16.91
12.41

13.99
16.30
18.46
14.09

15.63
17.87
20.00
15.73

9.81

11.53

13.19
10.75

14.81
12.51

16.40
14.19

12.38

13.98

10.84
15.56

12.60
17.12

10.00

11.73

13.39
10.94

10.18

11.92
9.19

13.59
11.12

7.69

6.12

7.88

9.34

9.54

7.22

9.04

10.74

8.30

9.37

11.31

20.87
23.01

22.90
25.03
13.85
27.12
23.02
18.71
20.95

25.44
27.55
16.64
29.63
25.55
21.31
23.51

27.97
30.06
19.33
32.14
28.08
23.88
26.06

30.49
32.58
21.97
34.64
30.61
26.44
28.60

23.13
18.92
25.26
14.24
23.24
21.17

25.67
21.53
27.78
17.04
25.78
23.74

28.20
24.10
30.30
19.74
28.31
26.29

30.72
26.67
32.81
22.40
30.84
28.83

19.33
23.46
12.24

23.35
21.28
19.14
14.43
21.39
25.49
14.63

25.89
23.85
21.74
17.24
23.96
28.01
17.44

28.42
26.40
24.32
19.95
26.51
30.53
20.15

30.95
28.94
26.89
22.61
29.05
33.05
22.81

17.98
15.83

17.23
19.43
21.54
17.34
12.42
19.54
17.44

19.35
21.50
23.58
19.45
14.82
21.61
19.56

21.96
24.07
26.12
22.06
17.64
24.18
22.17

24.54
26.62
28.65
24.65
20.36
26.73
24.76

14.29
18.68

15.93
20.22

12.60
17.54
21.76

15.01
19.66
23.80

17.84
22.28
26.34

20.56
24.87
28.88

15.01
12.70

16.61
14.39

18.19
16.03

19.75
17.65
12.79

21.83
19.77
15.20

24.40
22.38
18.04

26.96
24.97
20.77

15.22
12.89

16.82
14.59

18.40
16.24

12.88
19.97
17.85
12.97

15.30
22.04
19.98
15.39

18.13
24.62
22.60
18.23

20.87
27.18
25.19
20.97

13.06

15.49

18.33

21.07

16.44

13.15
18.06

15.58
20.19

18.43
22.81

21.17
25.41

11.31

13.34

15.77

18.63

21.38

11.48

13.52

15.96

18.83

21.58

27.11
29.17
31.18
27.22
23.02
29.28
27.33
15.81
23.23
27.44
31.41
15.99
29.50
27.55
23.44
16.17
23.54
29.73
27.77
23.65
16.35
23.75
16.53
23.85
27.99
16.72
16.81
24.06
16.90
16.99
24.27
17.08
17.26
17.44

13.09

14.79

13.78

=0.8

=0.6

=0.4

1700H
P.L. 170.00
340 Teeth

19.34
21.49

1400H
P.L. 140.00
280 Teeth

17.80
19.97

1250H
P.L. 125.00
250 Teeth

16.26
18.45

1100H
P.L. 110.00
220 Teeth

14.71
16.92

1000H
P.L. 100.00
200 Teeth

13.14
15.39

900H
P.L. 90.00
180 Teeth

11.56
13.84

850H
P.L. 85.00
170 Teeth

9.94
12.29

800H
P.L. 80.00
160 Teeth

8.27
10.73

750H
P.L. 75.00
150 Teeth

9.13

700H
P.L. 70.00
140 Teeth

7.49

660H
P.L. 66.00
132 Teeth

630H
P.L. 63.00
126 Teeth

=1.0

8.31

600H
P.L. 60.00
120 Teeth

Key to Horsepower Correction Factor

6.70

570H
P.L. 57.00
114 Teeth

24.828 3.250
11.459 3.273
9.549 3.333
19.099 3.333
7.639 3.429
11.459 3.429
15.279 3.429
13.369 3.500
24.828 3.545
11.459 3.600
15.279 3.692
9.549 3.750
19.099 3.750
11.459 3.789
13.369 3.818
24.828 3.900
11.459 4.000
13.369 4.000
15.279 4.000
19.099 4.000
13.369 4.200
9.549 4.286
19.099 4.286
24.828 4.333
15.279 4.364
13.369 4.421
11.459 4.500
15.279 4.571
19.099 4.615
13.369 4.667
15.279 4.800
24.828 4.875
19.099 5.000
15.279 5.053
11.459 5.143
24.828 5.200
13.369 5.250
15.279 5.333
19.099 5.455
24.828 5.571
19.099 5.714
13.369 6.000
15.279 6.000
19.099 6.000
24.828 6.000
19.099 6.316
24.828 6.500
19.099 6.667
15.279 6.857
24.828 7.091
24.828 7.429
19.099 7.500
24.828 7.800
24.828 8.211
19.099 8.571
24.828 8.667
24.828 9.750
24.828 11.143

540H
P.L. 54.00
108 Teeth

156
72
60
120
48
72
96
84
156
72
96
60
120
72
84
156
72
84
96
120
84
60
120
156
96
84
72
96
120
84
96
156
120
96
72
156
84
96
120
156
120
84
96
120
156
120
156
120
96
156
156
120
156
156
120
156
156
156

510H
P.L. 51.00
102 Teeth

7.639
3.501
2.865
5.730
2.228
3.342
4.456
3.820
7.003
3.183
4.138
2.546
5.093
3.024
3.501
6.366
2.865
3.342
3.820
4.775
3.183
2.228
4.456
5.730
3.501
3.024
2.546
3.342
4.138
2.865
3.183
5.093
3.820
3.024
2.228
4.775
2.546
2.865
3.501
4.456
3.342
2.228
2.546
3.183
4.138
3.024
3.820
2.865
2.228
3.501
3.342
2.546
3.183
3.024
2.228
2.865
2.546
2.228

480H
P.L. 48.00
96 Teeth

48
22
18
36
14
21
28
24
44
20
26
16
32
19
22
40
18
21
24
30
20
14
28
36
22
19
16
21
26
18
20
32
24
19
14
30
16
18
22
28
21
14
16
20
26
19
24
18
14
22
21
16
20
19
14
18
16
14

450H
P.L. 45.00
90 Teeth

1062
1054
1035
1035
1006
1006
1006
986
973
958
934
920
920
910
904
885
863
863
863
863
821
805
805
796
791
780
767
755
748
739
719
708
690
683
671
663
657
647
633
619
604
575
575
575
575
546
531
518
503
487
464
460
442
420
403
398
354
310

Speed
Ratio

420H
P.L. 42.00
84 Teeth

538
535
525
525
510
510
510
500
494
486
474
467
467
462
458
449
438
438
438
438
417
408
408
404
401
396
389
383
379
375
365
359
350
346
340
337
333
328
321
314
306
292
292
292
292
277
269
263
255
247
236
233
224
213
204
202
179
157

Pitch
diam.
inches

390H
P.L. 39.00
78 Teeth

357
354
348
348
338
338
338
331
327
322
314
309
309
306
304
297
290
290
290
290
276
271
271
268
266
262
258
254
251
249
242
238
232
230
226
223
221
218
213
208
203
193
193
193
193
184
178
174
169
164
156
155
149
141
135
134
119
104

Pitch
No. of diam. No. of
grooves inches grooves

330H
P.L. 33.00
66 Teeth

3450
RPM

300H
P.L. 30.00
60 Teeth

1750
RPM

DriveN

360H
P.L. 36.00
72 Teeth

The Gates Rubber Company

1160
RPM

Center Distance, Inches

Sprocket Combinations
DriveR

270H
P.L. 27.00
54 Teeth

DriveN Speed
For motor speed of

Drive Selection Table
240H
P.L. 24.00
48 Teeth

Page 74

H, 0.500² Pitch Belts

17.32
33.01
35.09
24.58
37.15
33.13
28.99
31.13
17.71
33.24
29.22
35.33
25.01
33.36
31.36
18.09
33.47
31.48
29.44
25.23
31.59
35.56
25.44
18.47
29.66
31.70
33.71
29.77
25.65
31.82
29.89
18.85
25.86
30.00
33.94
19.04
32.04
30.11
26.07
19.23
26.18
32.27
30.33
26.29
19.42
26.39
19.61
26.50
30.55
19.80
19.90
26.71
19.99
20.09
26.92
20.18
20.37
20.56

22.87
38.04
40.11
29.75
42.16
38.16
34.07
36.18
23.27
38.28
34.30
40.35
30.18
38.39
36.42
23.68
38.51
36.53
34.52
30.40
36.65
40.59
30.62
24.08
34.75
36.76
38.74
34.86
30.84
36.88
34.98
24.48
31.05
35.09
38.98
24.68
37.11
35.20
31.27
24.89
31.38
37.33
35.43
31.49
25.09
31.60
25.28
31.70
35.65
25.49
25.58
31.92
25.68
25.78
32.14
25.88
26.08
26.28

28.18
43.07
45.13
34.86
47.17
43.18
39.13
41.22
28.60
43.30
39.36
45.37
35.30
43.42
41.46
29.02
43.54
41.57
39.58
35.52
41.69
45.60
35.75
29.44
39.81
41.80
43.77
39.93
35.97
41.92
40.04
29.85
36.19
40.16
44.01
30.06
42.15
40.27
36.41
30.27
36.52
42.38
40.50
36.63
30.48
36.74
30.68
36.85
40.73
30.89
30.99
37.07
31.10
31.20
37.29
31.30
31.51
31.72

35.97
50.59
52.64
42.47
54.68
50.71
46.69
48.77
36.40
50.83
46.92
52.88
42.93
50.95
49.00
36.84
51.07
49.12
47.15
43.15
49.24
53.12
43.38
37.27
47.38
49.35
51.31
47.50
43.61
49.47
47.62
37.70
43.83
47.73
51.54
37.92
49.71
47.85
44.06
38.13
44.17
49.94
48.08
44.28
38.35
44.40
38.56
44.51
48.31
38.77
38.88
44.73
38.99
39.09
44.96
39.20
39.42
39.63

43.65
58.11
60.16
50.05
62.19
58.23
54.23
56.30
44.10
58.35
54.46
60.40
50.51
58.47
56.53
44.54
58.59
56.65
54.70
50.74
56.77
60.64
50.97
44.98
54.93
56.89
58.83
55.05
51.20
57.01
55.17
45.42
51.43
55.28
59.07
45.64
57.24
55.40
51.66
45.86
51.77
57.48
55.64
51.89
46.08
52.00
46.30
52.12
55.87
46.52
46.63
52.34
46.74
46.85
52.57
46.96
47.18
47.40

58.87
73.14
75.18
65.16
77.20
73.26
69.29
71.34
59.33
73.38
69.53
75.42
65.63
73.50
71.58
59.79
73.62
71.70
69.76
65.86
71.82
75.66
66.09
60.24
70.00
71.94
73.87
70.12
66.33
72.06
70.24
60.70
66.56
70.36
74.11
60.92
72.30
70.48
66.79
61.15
66.91
72.54
70.71
67.03
61.38
67.14
61.60
67.26
70.95
61.83
61.94
67.49
62.05
62.17
67.72
62.28
62.50
62.73

Horsepower Rating for 0.25 Inch Wide
XL Section Belt (0.200 Inch Pitch)
RPM
of
Faster
Shaft

Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)
10XL
0.637

11XL
0.700

12XL
0.764

14XL
0.891

15XL
0.955

16XL
1.019

18XL
1.146

20XL
1.273

21XL
1.337

22XL
1.401

24XL
1.528

28XL
1.783

30XL
1.910

950
1160
1425
1750
2850

0.034
0.042
0.051
0.063
0.10

0.038
0.046
0.057
0.069
0.11

0.041
0.050
0.062
0.076
0.12

0.048
0.059
0.072
0.088
0.14

0.051
0.063
0.077
0.095
0.15

0.055
0.067
0.082
0.10
0.16

0.062
0.075
0.093
0.11
0.18

0.069
0.084
0.10
0.13
0.20

0.072
0.088
0.11
0.13
0.21

0.075
0.092
0.11
0.14
0.22

0.082
0.10
0.12
0.15
0.24

0.096
0.12
0.14
0.18
0.28

0.10
0.13
0.15
0.19
0.30

3450
100
200
300
400

0.12
0.004
0.007
0.011
0.014

0.14
0.004
0.008
0.012
0.016

0.15
0.004
0.009
0.013
0.017

0.17
0.005
0.010
0.015
0.020

0.19
0.005
0.011
0.016
0.022

0.20
0.006
0.012
0.017
0.023

0.22
0.007
0.013
0.020
0.026

0.25
0.007
0.014
0.022
0.029

0.26
0.008
0.015
0.023
0.030

0.27
0.008
0.016
0.024
0.032

0.29
0.009
0.017
0.026
0.035

0.34
0.010
0.020
0.030
0.040

0.36
0.011
0.022
0.033
0.043

500
600
700
800
900

0.018
0.022
0.025
0.029
0.033

0.020
0.024
0.028
0.032
0.036

0.022
0.026
0.030
0.035
0.039

0.025
0.030
0.035
0.040
0.046

0.027
0.033
0.038
0.043
0.049

0.029
0.035
0.040
0.046
0.052

0.033
0.039
0.046
0.052
0.059

0.036
0.043
0.051
0.058
0.065

0.038
0.046
0.053
0.061
0.068

0.040
0.048
0.056
0.064
0.072

0.043
0.052
0.061
0.069
0.078

0.051
0.061
0.071
0.081
0.091

0.054
0.065
0.076
0.087
0.097

1000
1100
1200
1300
1400

0.036
0.040
0.043
0.047
0.051

0.040
0.044
0.048
0.052
0.056

0.043
0.048
0.052
0.056
0.061

0.051
0.056
0.061
0.066
0.071

0.054
0.060
0.065
0.070
0.076

0.058
0.064
0.069
0.075
0.081

0.065
0.072
0.078
0.084
0.091

0.072
0.079
0.087
0.094
0.10

0.076
0.083
0.091
0.098
0.11

0.079
0.087
0.095
0.10
0.11

0.087
0.095
0.10
0.11
0.12

0.10
0.11
0.12
0.13
0.14

0.11
0.12
0.13
0.14
0.15

1500
1600
1700
1800
2000

0.054
0.058
0.061
0.065
0.072

0.060
0.064
0.068
0.071
0.079

0.065
0.069
0.074
0.078
0.087

0.076
0.081
0.086
0.091
0.10

0.081
0.087
0.092
0.097
0.11

0.087
0.092
0.098
0.10
0.12

0.097
0.10
0.11
0.12
0.13

0.11
0.12
0.12
0.13
0.14

0.11
0.12
0.13
0.14
0.15

0.12
0.13
0.13
0.14
0.16

0.13
0.14
0.15
0.16
0.17

0.15
0.16
0.17
0.18
0.20

0.16
0.17
0.18
0.19
0.21

2200
2400
2600
2800
3000

0.079
0.087
0.094
0.10
0.11

0.087
0.095
0.10
0.11
0.12

0.095
0.10
0.11
0.12
0.13

0.11
0.12
0.13
0.14
0.15

0.12
0.13
0.14
0.15
0.16

0.13
0.14
0.15
0.16
0.17

0.14
0.16
0.17
0.18
0.19

0.16
0.17
0.19
0.20
0.21

0.17
0.18
0.20
0.21
0.22

0.17
0.19
0.20
0.22
0.24

0.19
0.21
0.22
0.24
0.26

0.22
0.24
0.26
0.28
0.30

0.24
0.26
0.28
0.30
0.32

3200
3400
3600
3800
4000

0.12
0.12
0.13
0.14
0.14

0.13
0.13
0.14
0.15
0.16

0.14
0.15
0.16
0.16
0.17

0.16
0.17
0.18
0.19
0.20

0.17
0.18
0.19
0.20
0.21

0.18
0.19
0.21
0.22
0.23

0.21
0.22
0.23
0.24
0.26

0.23
0.24
0.26
0.27
0.28

0.24
0.25
0.27
0.28
0.30

0.25
0.27
0.28
0.30
0.31

0.27
0.29
0.31
0.32
0.34

0.32
0.33
0.35
0.37
0.39

0.34
0.36
0.38
0.40
0.41

4200
4400
4600
4800
5000

0.15
0.16
0.17
0.17
0.18

0.17
0.17
0.18
0.19
0.20

0.18
0.19
0.20
0.21
0.21

0.21
0.22
0.23
0.24
0.25

0.22
0.24
0.25
0.26
0.27

0.24
0.25
0.26
0.27
0.28

0.27
0.28
0.29
0.31
0.32

0.30
0.31
0.32
0.34
0.35

0.31
0.33
0.34
0.35
0.37

0.33
0.34
0.35
0.37
0.38

0.35
0.37
0.38
0.40
0.41

0.41
0.42
0.44
0.46
0.48

0.43
0.45
0.47
0.49
0.50

0.29
0.32
0.34
0.37
0.39

0.31
0.34
0.36
0.39
0.41

0.35
0.38
0.40
0.43
0.46

0.38
0.41
0.45
0.48
0.50

0.40
0.43
0.46
0.50
0.53

0.42
0.45
0.48
0.52
0.55

0.45
0.49
0.52
0.55
0.58

0.52
0.55
0.59
0.62
0.65

0.55
0.58
0.62
0.65
0.68

0.49
0.51
0.54
0.56
0.58

0.53
0.56
0.58
0.61
0.63

0.55
0.58
0.61
0.63
0.65

0.57
0.60
0.63
0.65
0.68

0.61
0.64
0.67
0.69
0.71

0.68
0.71
0.73
0.75
0.76

0.71
0.73
0.75
0.77
0.78

5500
6000
6500
7000
7500
8000
8500
9000
9500
10000

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5,
Sprocket Diameter—Speed, on page 138.

R

The Driving Force in Power Transmission.

Page 75

Horsepower Rating for 0.375 Inch Wide
XL Section Belt (0.200 Inch Pitch)
Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)

RPM
of
Faster
Shaft

10XL
0.637

11XL
0.700

12XL
0.764

14XL
0.891

15XL
0.955

16XL
1.019

18XL
1.146

20XL
1.273

21XL
1.337

22XL
1.401

24XL
1.528

28XL
1.783

30XL
1.910

950
1160
1425
1750
2850

0.055
0.068
0.083
0.10
0.17

0.061
0.074
0.091
0.11
0.18

0.066
0.081
0.100
0.12
0.20

0.077
0.095
0.12
0.14
0.23

0.083
0.10
0.12
0.15
0.25

0.089
0.11
0.13
0.16
0.26

0.100
0.12
0.15
0.18
0.30

0.11
0.14
0.17
0.20
0.33

0.12
0.14
0.17
0.21
0.35

0.12
0.15
0.18
0.22
0.36

0.13
0.16
0.20
0.24
0.39

0.15
0.19
0.23
0.28
0.46

0.17
0.20
0.25
0.30
0.49

3450
100
200
300
400

0.20
0.006
0.012
0.017
0.023

0.22
0.006
0.013
0.019
0.026

0.24
0.007
0.014
0.021
0.028

0.28
0.008
0.016
0.024
0.033

0.30
0.009
0.017
0.026
0.035

0.32
0.009
0.019
0.028
0.037

0.36
0.010
0.021
0.031
0.042

0.40
0.012
0.023
0.035
0.047

0.42
0.012
0.024
0.037
0.049

0.43
0.013
0.026
0.038
0.051

0.47
0.014
0.028
0.042
0.056

0.55
0.016
0.033
0.049
0.065

0.58
0.017
0.035
0.052
0.070

500
600
700
800
900

0.029
0.035
0.041
0.047
0.052

0.032
0.038
0.045
0.051
0.058

0.035
0.042
0.049
0.056
0.063

0.041
0.049
0.057
0.065
0.073

0.044
0.052
0.061
0.070
0.079

0.047
0.056
0.065
0.075
0.084

0.052
0.063
0.073
0.084
0.094

0.058
0.070
0.082
0.093
0.10

0.061
0.073
0.086
0.098
0.11

0.064
0.077
0.090
0.10
0.12

0.070
0.084
0.098
0.11
0.13

0.082
0.098
0.11
0.13
0.15

0.087
0.10
0.12
0.14
0.16

1000
1100
1200
1300
1400

0.058
0.064
0.070
0.076
0.082

0.064
0.070
0.077
0.083
0.090

0.070
0.077
0.084
0.091
0.098

0.082
0.090
0.098
0.11
0.11

0.087
0.096
0.10
0.11
0.12

0.093
0.10
0.11
0.12
0.13

0.10
0.12
0.13
0.14
0.15

0.12
0.13
0.14
0.15
0.16

0.12
0.13
0.15
0.16
0.17

0.13
0.14
0.15
0.17
0.18

0.14
0.15
0.17
0.18
0.20

0.16
0.18
0.20
0.21
0.23

0.17
0.19
0.21
0.23
0.24

1500
1600
1700
1800
2000

0.087
0.093
0.099
0.10
0.12

0.096
0.10
0.11
0.12
0.13

0.10
0.11
0.12
0.13
0.14

0.12
0.13
0.14
0.15
0.16

0.13
0.14
0.15
0.16
0.17

0.14
0.15
0.16
0.17
0.19

0.16
0.17
0.18
0.19
0.21

0.17
0.19
0.20
0.21
0.23

0.18
0.20
0.21
0.22
0.24

0.19
0.20
0.22
0.23
0.26

0.21
0.22
0.24
0.25
0.28

0.24
0.26
0.28
0.29
0.32

0.26
0.28
0.30
0.31
0.35

2200
2400
2600
2800
3000

0.13
0.14
0.15
0.16
0.17

0.14
0.15
0.17
0.18
0.19

0.15
0.17
0.18
0.20
0.21

0.18
0.20
0.21
0.23
0.24

0.19
0.21
0.23
0.24
0.26

0.20
0.22
0.24
0.26
0.28

0.23
0.25
0.27
0.29
0.31

0.25
0.28
0.30
0.32
0.35

0.27
0.29
0.32
0.34
0.36

0.28
0.31
0.33
0.36
0.38

0.31
0.33
0.36
0.39
0.41

0.36
0.39
0.42
0.45
0.48

0.38
0.41
0.45
0.48
0.51

3200
3400
3600
3800
4000

0.19
0.20
0.21
0.22
0.23

0.20
0.22
0.23
0.24
0.25

0.22
0.24
0.25
0.26
0.28

0.26
0.28
0.29
0.31
0.32

0.28
0.30
0.31
0.33
0.35

0.30
0.31
0.33
0.35
0.37

0.33
0.35
0.37
0.39
0.41

0.37
0.39
0.41
0.44
0.46

0.39
0.41
0.43
0.46
0.48

0.40
0.43
0.45
0.48
0.50

0.44
0.47
0.49
0.52
0.54

0.51
0.54
0.57
0.60
0.63

0.54
0.58
0.61
0.64
0.67

4200
4400
4600
4800
5000

0.24
0.26
0.27
0.28
0.29

0.27
0.28
0.29
0.31
0.32

0.29
0.31
0.32
0.33
0.35

0.34
0.35
0.37
0.39
0.40

0.36
0.38
0.40
0.41
0.43

0.39
0.40
0.42
0.44
0.46

0.43
0.45
0.47
0.49
0.51

0.48
0.50
0.52
0.54
0.56

0.50
0.52
0.55
0.57
0.59

0.52
0.55
0.57
0.59
0.62

0.57
0.59
0.62
0.64
0.67

0.66
0.68
0.71
0.74
0.77

0.70
0.73
0.76
0.79
0.81

0.47
0.51
0.55
0.59
0.63

0.50
0.54
0.59
0.63
0.67

0.56
0.61
0.65
0.70
0.74

0.62
0.67
0.72
0.77
0.81

0.65
0.70
0.75
0.80
0.85

0.67
0.73
0.78
0.83
0.88

0.73
0.79
0.84
0.89
0.94

0.83
0.89
0.95
1.01
1.06

0.88
0.94
1.00
1.06
1.10

0.79
0.83
0.87
0.91
0.94

0.86
0.90
0.94
0.98
1.02

0.89
0.94
0.98
1.02
1.06

0.93
0.97
1.01
1.05
1.09

0.99
1.03
1.08
1.11
1.15

1.10
1.14
1.18
1.21
1.23

1.15
1.18
1.22
1.24
1.26

5500
6000
6500
7000
7500
8000
8500
9000
9500
10000

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.

Page 76

R

The Gates Rubber Company

Horsepower Rating for 0.50 Inch Wide
L Section Belt (0.375 Inch Pitch)
Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)

RPM
of
Faster
Shaft

10L
1.194

12L
1.432

14L
1.671

16L
1.910

18L
2.149

19L
2.268

20L
2.387

21L
2.507

22L
2.626

24L
2.865

26L
3.104

28L
3.342

30L
3.581

32L
3.820

36L
4.297

40L
4.775

44L
5.252

48L
5.730

725
870
950
1160
1425

0.17
0.20
0.22
0.27
0.33

0.20
0.24
0.27
0.33
0.40

0.24
0.28
0.31
0.38
0.47

0.27
0.33
0.36
0.43
0.53

0.31
0.37
0.40
0.49
0.60

0.32
0.39
0.42
0.51
0.63

0.34
0.41
0.44
0.54
0.66

0.36
0.43
0.47
0.57
0.69

0.37
0.45
0.49
0.59
0.73

0.41
0.49
0.53
0.65
0.79

0.44
0.53
0.57
0.70
0.86

0.47
0.57
0.62
0.75
0.92

0.51
0.61
0.66
0.81
0.98

0.54
0.65
0.71
0.86
1.05

0.61
0.73
0.79
0.96
1.17

0.67
0.81
0.88
1.06
1.29

0.74
0.88
0.96
1.16
1.41

0.81
0.96
1.05
1.26
1.53

1750
2850
3450
100
200

0.41

0.49
0.79

0.023
0.047

0.028
0.056

0.57
0.92
1.11
0.033
0.066

0.65
1.05
1.25
0.037
0.075

0.73
1.17
1.40
0.042
0.084

0.77
1.23
1.47
0.044
0.089

0.81
1.29
1.54
0.047
0.094

0.85
1.35
1.61
0.049
0.098

0.89
1.41
1.68
0.052
0.10

0.97
1.53
1.81
0.056
0.11

1.04
1.64
1.93
0.061
0.12

1.12
1.75
2.05
0.066
0.13

1.20
1.86
2.17
0.070
0.14

1.27
1.96
2.28
0.075
0.15

1.42
2.15
2.47
0.084
0.17

1.56
2.33
2.63
0.094
0.19

1.70
2.48
2.75
0.10
0.21

1.83
2.61
2.83
0.11
0.22

300
400
500
600
700

0.070
0.094
0.12
0.14
0.16

0.084
0.11
0.14
0.17
0.20

0.098
0.13
0.16
0.20
0.23

0.11
0.15
0.19
0.22
0.26

0.13
0.17
0.21
0.25
0.29

0.13
0.18
0.22
0.27
0.31

0.14
0.19
0.23
0.28
0.33

0.15
0.20
0.25
0.29
0.34

0.15
0.21
0.26
0.31
0.36

0.17
0.22
0.28
0.34
0.39

0.18
0.24
0.30
0.36
0.42

0.20
0.26
0.33
0.39
0.46

0.21
0.28
0.35
0.42
0.49

0.22
0.30
0.37
0.45
0.52

0.25
0.34
0.42
0.50
0.59

0.28
0.37
0.47
0.56
0.65

0.31
0.41
0.51
0.61
0.71

0.34
0.45
0.56
0.67
0.78

800
900
1000
1100
1200

0.19
0.21
0.23
0.26
0.28

0.22
0.25
0.28
0.31
0.34

0.26
0.29
0.33
0.36
0.39

0.30
0.34
0.37
0.41
0.45

0.34
0.38
0.42
0.46
0.50

0.36
0.40
0.44
0.49
0.53

0.37
0.42
0.47
0.51
0.56

0.39
0.44
0.49
0.54
0.59

0.41
0.46
0.51
0.56
0.61

0.45
0.50
0.56
0.61
0.67

0.49
0.55
0.60
0.66
0.72

0.52
0.59
0.65
0.71
0.78

0.56
0.63
0.70
0.76
0.83

0.60
0.67
0.74
0.81
0.89

0.67
0.75
0.83
0.91
0.99

0.74
0.83
0.92
1.01
1.10

0.81
0.91
1.01
1.11
1.20

0.89
0.99
1.10
1.20
1.30

1300
1400
1500
1600
1700

0.30
0.33
0.35
0.37
0.40

0.36
0.39
0.42
0.45
0.48

0.42
0.46
0.49
0.52
0.55

0.49
0.52
0.56
0.60
0.63

0.55
0.59
0.63
0.67
0.71

0.57
0.62
0.66
0.71
0.75

0.60
0.65
0.70
0.74
0.79

0.63
0.68
0.73
0.78
0.83

0.66
0.71
0.76
0.81
0.86

0.72
0.78
0.83
0.89
0.94

0.78
0.84
0.90
0.96
1.02

0.84
0.90
0.97
1.03
1.09

0.90
0.97
1.03
1.10
1.16

0.96
1.03
1.10
1.17
1.24

1.07
1.15
1.23
1.30
1.38

1.19
1.27
1.36
1.44
1.52

1.30
1.39
1.48
1.57
1.66

1.41
1.50
1.60
1.69
1.79

1800
1900
2000
2200
2400

0.50
0.53
0.56
0.61
0.67

0.59
0.62
0.65
0.71
0.78

0.67
0.71
0.74
0.81
0.89

0.75
0.79
0.83
0.91
0.99

0.79
0.83
0.88
0.96
1.05

0.83
0.88
0.92
1.01
1.10

0.87
0.92
0.97
1.06
1.15

0.91
0.96
1.01
1.11
1.20

0.99
1.05
1.10
1.20
1.30

1.07
1.13
1.19
1.30
1.41

1.15
1.21
1.27
1.39
1.50

1.23
1.29
1.36
1.48
1.60

1.30
1.37
1.44
1.57
1.69

1.45
1.53
1.60
1.74
1.87

1.60
1.68
1.76
1.90
2.04

1.74
1.82
1.90
2.06
2.20

1.87
1.96
2.04
2.20
2.35

2600
2800
3000
3200
3400

0.72
0.78
0.83

0.84
0.90
0.97
1.03
1.09

0.96
1.03
1.10
1.17
1.24

1.07
1.15
1.23
1.30
1.38

1.13
1.21
1.29
1.37
1.45

1.19
1.27
1.36
1.44
1.52

1.24
1.33
1.42
1.50
1.59

1.30
1.39
1.48
1.57
1.66

1.41
1.50
1.60
1.69
1.79

1.51
1.62
1.72
1.82
1.91

1.62
1.73
1.83
1.93
2.03

1.72
1.83
1.94
2.04
2.14

1.82
1.93
2.04
2.15
2.25

2.00
2.12
2.24
2.35
2.44

2.18
2.30
2.41
2.51
2.61

2.33
2.45
2.56
2.65
2.73

2.47
2.59
2.68
2.76
2.82

1.15
1.21
1.27

1.30
1.37
1.44
1.50
1.57

1.45
1.53
1.60
1.67
1.74

1.53
1.60
1.68
1.75
1.82

1.60
1.68
1.76
1.83
1.90

1.67
1.75
1.83
1.91
1.98

1.74
1.82
1.90
1.98
2.06

1.87
1.96
2.04
2.12
2.20

2.00
2.09
2.18
2.26
2.33

2.12
2.21
2.30
2.38
2.45

2.24
2.33
2.41
2.49
2.56

2.35
2.43
2.51
2.59
2.65

2.53
2.61
2.68
2.74
2.79

2.68
2.75
2.80
2.84
2.87

2.79
2.84
2.87
2.87
2.86

2.86
2.87
2.87
2.83
2.78

4600
4800
5000
5200
5400

1.63
1.69
1.76
1.82
1.87

1.81
1.87
1.94
2.00
2.06

1.89
1.96
2.03
2.09
2.15

1.98
2.04
2.11
2.18
2.24

2.05
2.12
2.19
2.26
2.32

2.13
2.20
2.27
2.33
2.40

2.28
2.35
2.41
2.47
2.53

2.41
2.47
2.54
2.60
2.65

2.52
2.59
2.65
2.70
2.74

2.63
2.68
2.74
2.78
2.81

2.71
2.76
2.80
2.84
2.86

2.83
2.86
2.87
2.87
2.86

2.87
2.87
2.84
2.80
2.74

2.83
2.78
2.70
2.60
2.47

2.69
2.58
2.44
2.26
2.06

5600
5800
6000

1.93
1.99
2.04

2.12
2.18
2.24

2.21
2.27
2.33

2.30
2.36
2.41

2.38
2.44
2.49

2.45
2.51
2.56

2.59
2.64
2.68

2.70
2.74
2.78

2.78
2.82
2.84

2.84
2.86
2.87

2.87
2.87
2.87

2.83
2.79
2.74

2.66
2.56
2.44

2.32
2.15
1.94

1.82
1.55
1.24

3600
3800
4000
4200
4400

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.
Sprocket surface speeds over 6,500 fpm; special pulleys are required. See Engineering Section II-5, Sprocket Diameter—Speed, on
page 138.

R

The Driving Force in Power Transmission.

Page 77

Horsepower Rating for 0.75 Inch Wide
L Section Belt (0.375 Inch Pitch)
RPM
of
Faster
Shaft

Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)
10L
1.194

12L
1.432

14L
1.671

16L
1.910

18L
2.149

19L
2.268

20L
2.387

21L
2.507

22L
2.626

24L
2.865

26L
3.104

28L
3.342

30L
3.581

32L
3.820

36L
4.297

40L
4.775

44L
5.252

48L
5.730

725
870
950
1160
1425

0.27
0.33
0.36
0.43
0.53

0.33
0.39
0.43
0.52
0.64

0.38
0.46
0.50
0.61
0.74

0.43
0.52
0.57
0.69
0.85

0.49
0.59
0.64
0.78
0.95

0.52
0.62
0.67
0.82
1.01

0.54
0.65
0.71
0.86
1.06

0.57
0.68
0.74
0.91
1.11

0.60
0.71
0.78
0.95
1.16

0.65
0.78
0.85
1.04
1.27

0.70
0.84
0.92
1.12
1.37

0.76
0.91
0.99
1.20
1.47

0.81
0.97
1.06
1.29
1.57

0.86
1.04
1.13
1.37
1.67

0.97
1.16
1.27
1.54
1.87

1.08
1.29
1.40
1.70
2.07

1.18
1.41
1.54
1.86
2.26

1.29
1.54
1.67
2.02
2.45

1750
2850
3450
100
200

0.65

0.78
1.27

0.037
0.075

0.045
0.090

0.91
1.47
1.77
0.052
0.10

1.04
1.67
2.01
0.060
0.12

1.17
1.87
2.24
0.067
0.13

1.23
1.97
2.35
0.071
0.14

1.30
2.07
2.46
0.075
0.15

1.36
2.16
2.57
0.079
0.16

1.42
2.26
2.68
0.082
0.16

1.55
2.45
2.89
0.090
0.18

1.67
2.63
3.10
0.097
0.19

1.79
2.80
3.29
0.10
0.21

1.91
2.97
3.47
0.11
0.22

2.03
3.14
3.64
0.12
0.24

2.27
3.45
3.95
0.13
0.27

2.50
3.73
4.20
0.15
0.30

2.72
3.97
4.40
0.16
0.33

2.93
4.18
4.53
0.18
0.36

300
400
500
600
700

0.11
0.15
0.19
0.22
0.26

0.13
0.18
0.22
0.27
0.31

0.16
0.21
0.26
0.31
0.37

0.18
0.24
0.30
0.36
0.42

0.20
0.27
0.34
0.40
0.47

0.21
0.28
0.36
0.43
0.50

0.22
0.30
0.37
0.45
0.52

0.24
0.31
0.39
0.47
0.55

0.25
0.33
0.41
0.49
0.58

0.27
0.36
0.45
0.54
0.63

0.29
0.39
0.49
0.58
0.68

0.31
0.42
0.52
0.63
0.73

0.34
0.45
0.56
0.67
0.78

0.36
0.48
0.60
0.72
0.84

0.40
0.54
0.67
0.81
0.94

0.45
0.60
0.75
0.89
1.04

0.49
0.66
0.82
0.98
1.14

0.54
0.72
0.89
1.07
1.25

800
900
1000
1100
1200

0.30
0.34
0.37
0.41
0.45

0.36
0.40
0.45
0.49
0.54

0.42
0.47
0.52
0.58
0.63

0.48
0.54
0.60
0.66
0.72

0.54
0.61
0.67
0.74
0.81

0.57
0.64
0.71
0.78
0.85

0.60
0.67
0.75
0.82
0.89

0.63
0.71
0.78
0.86
0.94

0.66
0.74
0.82
0.90
0.98

0.72
0.81
0.89
0.98
1.07

0.78
0.87
0.97
1.06
1.16

0.84
0.94
1.04
1.14
1.25

0.89
1.00
1.11
1.22
1.33

0.95
1.07
1.19
1.30
1.42

1.07
1.20
1.33
1.46
1.59

1.19
1.33
1.48
1.62
1.76

1.30
1.46
1.62
1.77
1.92

1.42
1.59
1.76
1.92
2.09

1300
1400
1500
1600
1700

0.49
0.52
0.56
0.60
0.64

0.58
0.63
0.67
0.72
0.76

0.68
0.73
0.78
0.84
0.89

0.78
0.84
0.89
0.95
1.01

0.87
0.94
1.00
1.07
1.14

0.92
0.99
1.06
1.13
1.20

0.97
1.04
1.11
1.19
1.26

1.02
1.09
1.17
1.25
1.32

1.06
1.14
1.22
1.30
1.38

1.16
1.25
1.33
1.42
1.50

1.25
1.35
1.44
1.53
1.62

1.35
1.45
1.55
1.65
1.74

1.44
1.55
1.65
1.76
1.86

1.53
1.65
1.76
1.87
1.98

1.72
1.84
1.97
2.09
2.21

1.90
2.03
2.17
2.30
2.43

2.07
2.22
2.37
2.51
2.65

2.25
2.41
2.56
2.71
2.86

1800
1900
2000
2200
2400

0.81
0.85
0.89
0.98
1.07

0.94
0.99
1.04
1.14
1.25

1.07
1.13
1.19
1.30
1.42

1.20
1.27
1.33
1.46
1.59

1.27
1.34
1.40
1.54
1.67

1.33
1.40
1.48
1.62
1.76

1.40
1.47
1.55
1.69
1.84

1.46
1.54
1.62
1.77
1.92

1.59
1.67
1.76
1.92
2.09

1.72
1.81
1.90
2.07
2.25

1.84
1.94
2.03
2.22
2.41

1.97
2.07
2.17
2.37
2.56

2.09
2.20
2.30
2.51
2.71

2.33
2.45
2.56
2.78
3.00

2.56
2.69
2.81
3.05
3.27

2.78
2.92
3.05
3.29
3.52

3.00
3.14
3.27
3.52
3.75

2600
2800
3000
3200
3400

1.16
1.25
1.33

1.35
1.45
1.55
1.65
1.74

1.53
1.65
1.76
1.87
1.98

1.72
1.84
1.97
2.09
2.21

1.81
1.94
2.07
2.20
2.32

1.90
2.03
2.17
2.30
2.43

1.99
2.13
2.27
2.41
2.54

2.07
2.22
2.37
2.51
2.65

2.25
2.41
2.56
2.71
2.86

2.42
2.59
2.75
2.91
3.06

2.59
2.76
2.93
3.09
3.25

2.75
2.93
3.10
3.27
3.43

2.91
3.09
3.27
3.44
3.60

3.21
3.40
3.58
3.75
3.91

3.48
3.68
3.86
4.02
4.17

3.73
3.93
4.10
4.25
4.37

3.96
4.14
4.30
4.42
4.51

1.84
1.94
2.03

2.09
2.20
2.30
2.41
2.51

2.33
2.45
2.56
2.67
2.78

2.45
2.57
2.69
2.80
2.92

2.56
2.69
2.81
2.93
3.05

2.67
2.80
2.93
3.05
3.17

2.78
2.92
3.05
3.17
3.29

3.00
3.14
3.27
3.40
3.52

3.21
3.35
3.48
3.61
3.73

3.40
3.54
3.68
3.81
3.93

3.58
3.73
3.86
3.98
4.10

3.75
3.89
4.02
4.14
4.25

4.05
4.18
4.30
4.39
4.47

4.30
4.40
4.49
4.55
4.59

4.47
4.54
4.59
4.60
4.58

4.57
4.60
4.59
4.53
4.44

4600
4800
5000
5200
5400

2.61
2.71
2.81
2.91
3.00

2.89
3.00
3.10
3.21
3.30

3.03
3.14
3.24
3.35
3.45

3.16
3.27
3.38
3.48
3.58

3.29
3.40
3.51
3.61
3.71

3.41
3.52
3.63
3.73
3.83

3.64
3.75
3.86
3.96
4.05

3.85
3.96
4.06
4.16
4.24

4.04
4.14
4.23
4.32
4.39

4.20
4.30
4.38
4.45
4.50

4.34
4.42
4.49
4.54
4.57

4.53
4.57
4.60
4.60
4.58

4.60
4.59
4.55
4.48
4.38

4.53
4.44
4.32
4.16
3.96

4.31
4.13
3.90
3.62
3.29

5600
5800
6000

3.09
3.18
3.27

3.40
3.49
3.58

3.54
3.64
3.73

3.68
3.77
3.86

3.81
3.90
3.98

3.93
4.02
4.10

4.14
4.22
4.30

4.32
4.39
4.45

4.45
4.51
4.55

4.55
4.58
4.60

4.59
4.60
4.59

4.53
4.47
4.38

4.25
4.09
3.90

3.72
3.44
3.11

2.91
2.48
1.99

3600
3800
4000
4200
4400

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.
Sprocket surface speeds over 6,500 fpm; special pulleys are required. See Engineering Section II-5, Sprocket Diameter—Speed, on
page 138.

Page 78

R

The Gates Rubber Company

Horsepower Rating for 1.00 Inch Wide
L Section Belt (0.375 Inch Pitch)
RPM
of
Faster
Shaft

Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)
10L
1.194

12L
1.432

14L
1.671

16L
1.910

18L
2.149

19L
2.268

20L
2.387

21L
2.507

22L
2.626

24L
2.865

26L
3.104

28L
3.342

30L
3.581

32L
3.820

36L
4.297

40L
4.775

44L
5.252

48L
5.730

725
870
950
1160
1425

0.38
0.45
0.49
0.60
0.74

0.45
0.54
0.59
0.72
0.89

0.53
0.63
0.69
0.84
1.03

0.60
0.72
0.79
0.96
1.18

0.68
0.81
0.89
1.08
1.33

0.72
0.86
0.94
1.14
1.40

0.75
0.90
0.99
1.20
1.47

0.79
0.95
1.03
1.26
1.54

0.83
0.99
1.08
1.32
1.62

0.90
1.08
1.18
1.44
1.76

0.98
1.17
1.28
1.56
1.90

1.05
1.26
1.37
1.67
2.04

1.13
1.35
1.47
1.79
2.18

1.20
1.44
1.57
1.91
2.32

1.35
1.61
1.76
2.14
2.60

1.50
1.79
1.95
2.36
2.87

1.64
1.96
2.14
2.59
3.14

1.79
2.14
2.32
2.81
3.40

1750
2850
3450
100
200

0.91

1.09
1.76

0.052
0.10

0.062
0.12

1.27
2.04
2.46
0.073
0.15

1.45
2.32
2.79
0.083
0.17

1.62
2.60
3.11
0.094
0.19

1.71
2.74
3.27
0.099
0.20

1.80
2.87
3.42
0.10
0.21

1.89
3.01
3.58
0.11
0.22

1.97
3.14
3.73
0.11
0.23

2.15
3.40
4.02
0.12
0.25

2.32
3.65
4.30
0.14
0.27

2.49
3.89
4.57
0.15
0.29

2.66
4.13
4.82
0.16
0.31

2.82
4.36
5.06
0.17
0.33

3.15
4.79
5.48
0.19
0.37

3.47
5.17
5.84
0.21
0.42

3.77
5.52
6.11
0.23
0.46

4.07
5.81
6.29
0.25
0.50

300
400
500
600
700

0.16
0.21
0.26
0.31
0.36

0.19
0.25
0.31
0.37
0.44

0.22
0.29
0.36
0.44
0.51

0.25
0.33
0.42
0.50
0.58

0.28
0.37
0.47
0.56
0.65

0.30
0.40
0.49
0.59
0.69

0.31
0.42
0.52
0.62
0.73

0.33
0.44
0.55
0.65
0.76

0.34
0.46
0.57
0.69
0.80

0.37
0.50
0.62
0.75
0.87

0.41
0.54
0.68
0.81
0.94

0.44
0.58
0.73
0.87
1.02

0.47
0.62
0.78
0.93
1.09

0.50
0.67
0.83
1.00
1.16

0.56
0.75
0.93
1.12
1.30

0.62
0.83
1.04
1.24
1.45

0.69
0.91
1.14
1.36
1.59

0.75
1.00
1.24
1.49
1.73

800
900
1000
1100
1200

0.42
0.47
0.52
0.57
0.62

0.50
0.56
0.62
0.69
0.75

0.58
0.65
0.73
0.80
0.87

0.67
0.75
0.83
0.91
1.00

0.75
0.84
0.93
1.03
1.12

0.79
0.89
0.99
1.08
1.18

0.83
0.93
1.04
1.14
1.24

0.87
0.98
1.09
1.20
1.30

0.91
1.03
1.14
1.25
1.36

1.00
1.12
1.24
1.36
1.49

1.08
1.21
1.34
1.48
1.61

1.16
1.30
1.45
1.59
1.73

1.24
1.40
1.55
1.70
1.85

1.32
1.49
1.65
1.81
1.97

1.49
1.67
1.85
2.03
2.21

1.65
1.85
2.05
2.25
2.44

1.81
2.03
2.25
2.46
2.67

1.97
2.21
2.44
2.67
2.90

1300
1400
1500
1600
1700

0.68
0.73
0.78
0.83
0.88

0.81
0.87
0.93
1.00
1.06

0.94
1.02
1.09
1.16
1.23

1.08
1.16
1.24
1.32
1.41

1.21
1.30
1.40
1.49
1.58

1.28
1.37
1.47
1.57
1.66

1.34
1.45
1.55
1.65
1.75

1.41
1.52
1.62
1.73
1.83

1.48
1.59
1.70
1.81
1.92

1.61
1.73
1.85
1.97
2.09

1.74
1.87
2.00
2.13
2.26

1.87
2.01
2.15
2.29
2.42

2.00
2.15
2.30
2.44
2.59

2.13
2.29
2.44
2.60
2.75

2.38
2.56
2.73
2.90
3.07

2.63
2.82
3.01
3.20
3.38

2.88
3.09
3.29
3.49
3.68

3.12
3.34
3.56
3.77
3.97

1800
1900
2000
2200
2400

1.12
1.18
1.24
1.36
1.49

1.30
1.37
1.45
1.59
1.73

1.49
1.57
1.65
1.81
1.97

1.67
1.76
1.85
2.03
2.21

1.76
1.85
1.95
2.14
2.32

1.85
1.95
2.05
2.25
2.44

1.94
2.04
2.15
2.35
2.56

2.03
2.14
2.25
2.46
2.67

2.21
2.32
2.44
2.67
2.90

2.38
2.51
2.63
2.88
3.12

2.56
2.69
2.82
3.09
3.34

2.73
2.87
3.01
3.29
3.56

2.90
3.05
3.20
3.49
3.77

3.23
3.40
3.56
3.87
4.17

3.56
3.73
3.90
4.23
4.54

3.87
4.05
4.23
4.57
4.89

4.17
4.36
4.54
4.89
5.21

2600
2800
3000
3200
3400

1.61
1.73
1.85

1.87
2.01
2.15
2.29
2.42

2.13
2.29
2.44
2.60
2.75

2.38
2.56
2.73
2.90
3.07

2.51
2.69
2.87
3.05
3.22

2.63
2.82
3.01
3.20
3.38

2.76
2.96
3.15
3.34
3.53

2.88
3.09
3.29
3.49
3.68

3.12
3.34
3.56
3.77
3.97

3.36
3.59
3.82
4.04
4.25

3.59
3.83
4.07
4.29
4.51

3.82
4.07
4.31
4.54
4.77

4.04
4.29
4.54
4.78
5.00

4.45
4.72
4.98
5.21
5.43

4.84
5.11
5.36
5.59
5.79

5.19
5.45
5.69
5.90
6.07

5.50
5.75
5.97
6.14
6.27

2.56
2.69
2.82

2.90
3.05
3.20
3.34
3.49

3.23
3.40
3.56
3.71
3.87

3.40
3.56
3.73
3.89
4.05

3.56
3.73
3.90
4.07
4.23

3.71
3.89
4.07
4.24
4.40

3.87
4.05
4.23
4.40
4.57

4.17
4.36
4.54
4.72
4.89

4.45
4.65
4.84
5.02
5.19

4.72
4.92
5.11
5.29
5.45

4.98
5.17
5.36
5.53
5.69

5.21
5.41
5.59
5.75
5.90

5.63
5.81
5.97
6.10
6.21

5.97
6.11
6.23
6.32
6.37

6.21
6.31
6.37
6.39
6.36

6.35
6.39
6.37
6.30
6.17

4600
4800
5000
5200
5400

3.63
3.77
3.90
4.04
4.17

4.02
4.17
4.31
4.45
4.59

4.21
4.36
4.51
4.65
4.79

4.39
4.54
4.69
4.84
4.98

4.57
4.72
4.87
5.02
5.16

4.74
4.89
5.04
5.19
5.32

5.06
5.21
5.36
5.50
5.63

5.35
5.50
5.64
5.77
5.89

5.61
5.75
5.88
6.00
6.10

5.84
5.97
6.08
6.18
6.25

6.03
6.14
6.23
6.30
6.35

6.29
6.35
6.38
6.38
6.36

6.39
6.37
6.31
6.22
6.08

6.29
6.17
6.00
5.78
5.50

5.98
5.73
5.41
5.03
4.57

5600
5800
6000

4.29
4.42
4.54

4.72
4.85
4.98

4.92
5.05
5.17

5.11
5.24
5.36

5.29
5.41
5.53

5.45
5.58
5.69

5.75
5.86
5.97

6.00
6.09
6.18

6.19
6.26
6.32

6.32
6.36
6.38

6.38
6.39
6.37

6.30
6.21
6.08

5.90
5.68
5.41

5.17
4.77
4.32

4.05
3.44
2.76

3600
3800
4000
4200
4400

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.
Sprocket surface speeds over 6,500 fpm; special pulleys are required. See Engineering Section II-5, Sprocket Diameter—Speed, on
page 138.

R

The Driving Force in Power Transmission.

Page 79

Horsepower Rating for 0.75 Inch Wide
H Section Belt (0.500 Inch Pitch)
Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)

RPM
of
Faster
Shaft

725
870
950
1160
1425

14L
2.228

16L
2.546

18L
2.865

19L
3.024

20L
3.183

21L
3.342

22L
3.501

24L
3.820

26L
4.138

28L
4.456

30L
4.775

32L
5.093

36L
5.730

40L
6.366

44L
7.003

48L
7.639

1.26
1.52
1.66
2.02

1.44
1.73
1.89
2.31
2.83

1.62
1.95
2.13
2.59
3.18

1.71
2.06
2.24
2.73
3.35

1.80
2.16
2.36
2.88
3.53

1.89
2.27
2.48
3.02
3.70

1.98
2.38
2.59
3.16
3.87

2.16
2.59
2.83
3.44
4.22

2.34
2.81
3.06
3.73
4.56

2.52
3.02
3.29
4.01
4.90

2.70
3.23
3.53
4.29
5.24

2.88
3.44
3.76
4.57
5.57

3.23
3.87
4.22
5.12
6.23

3.59
4.29
4.67
5.67
6.88

3.94
4.71
5.12
6.20
7.52

4.29
5.12
5.57
6.74
8.15

3.46

4.10
6.56
7.84
0.24
0.47

4.31
6.88
8.21
0.25
0.50

4.52
7.21
8.58
0.26
0.52

4.73
7.52
8.94
0.27
0.55

5.15
8.15
9.64
0.30
0.60

5.56
8.75
10.3
0.32
0.65

5.97
9.34
11.0
0.35
0.70

6.37
9.91
11.6
0.37
0.75

6.77
10.5
12.2
0.40
0.80

7.56
11.5
13.2
0.45
0.90

8.32
12.4
14.1
0.50
1.00

9.05
13.3
14.7
0.55
1.10

9.76
14.0
15.2
0.60
1.20

1750
2850
3450
100
200

0.17
0.35

0.20
0.40

3.89
6.23
7.46
0.22
0.45

300
400
500
600
700

0.52
0.70
0.87
1.05
1.22

0.60
0.80
1.00
1.20
1.39

0.67
0.90
1.12
1.34
1.57

0.71
0.95
1.18
1.42
1.66

0.75
1.00
1.25
1.49
1.74

0.79
1.05
1.31
1.57
1.83

0.82
1.10
1.37
1.64
1.92

0.90
1.20
1.49
1.79
2.09

0.97
1.30
1.62
1.94
2.26

1.05
1.39
1.74
2.09
2.43

1.12
1.49
1.87
2.24
2.61

1.20
1.59
1.99
2.39
2.78

1.34
1.79
2.24
2.68
3.12

1.49
1.99
2.48
2.98
3.46

1.64
2.19
2.73
3.27
3.80

1.79
2.39
2.98
3.56
4.14

800
900
1000
1100
1200

1.39
1.57
1.74
1.92

1.59
1.79
1.99
2.19
2.39

1.79
2.01
2.24
2.46
2.68

1.89
2.13
2.36
2.59
2.83

1.99
2.24
2.48
2.73
2.98

2.09
2.35
2.61
2.87
3.12

2.19
2.46
2.73
3.00
3.27

2.39
2.68
2.98
3.27
3.56

2.58
2.90
3.22
3.54
3.85

2.78
3.12
3.46
3.80
4.14

2.98
3.34
3.71
4.07
4.43

3.17
3.56
3.95
4.34
4.72

3.56
4.00
4.43
4.86
5.29

3.95
4.43
4.91
5.38
5.85

4.34
4.86
5.38
5.90
6.41

4.72
5.29
5.85
6.41
6.95

1300
1400
1500
1600
1700

2.58
2.78
2.98
3.17
3.37

2.90
3.12
3.34
3.56
3.78

3.06
3.29
3.53
3.76
3.99

3.22
3.46
3.71
3.95
4.19

3.38
3.63
3.89
4.14
4.40

3.54
3.80
4.07
4.34
4.60

3.85
4.14
4.43
4.72
5.01

4.17
4.48
4.79
5.10
5.41

4.48
4.82
5.15
5.48
5.81

4.79
5.15
5.50
5.85
6.20

5.10
5.48
5.85
6.22
6.59

5.71
6.13
6.54
6.95
7.36

6.31
6.77
7.22
7.67
8.10

6.91
7.40
7.88
8.36
8.83

7.49
8.02
8.53
9.03
9.52

1800
1900
2000
2100
2200

3.56
3.76
3.95

4.00
4.22
4.43
4.65
4.86

4.22
4.44
4.67
4.90
5.12

4.43
4.67
4.91
5.15
5.38

4.65
4.90
5.15
5.40
5.64

4.86
5.12
5.38
5.64
5.90

5.29
5.57
5.85
6.13
6.41

5.71
6.01
6.31
6.61
6.91

6.13
6.45
6.77
7.09
7.40

6.54
6.88
7.22
7.56
7.88

6.95
7.31
7.67
8.02
8.36

7.75
8.15
8.53
8.91
9.28

8.53
8.95
9.36
9.76
10.2

9.28
9.72
10.2
10.6
11.0

10.0
10.5
10.9
11.3
11.8

2300
2400
2500
2600
2800

5.08
5.29
5.50
5.71
6.13

5.35
5.57
5.79
6.01
6.45

5.62
5.85
6.08
6.31
6.77

5.89
6.13
6.37
6.61
7.09

6.15
6.41
6.66
6.91
7.40

6.68
6.95
7.22
7.49
8.02

7.20
7.49
7.78
8.06
8.62

7.71
8.02
8.32
8.62
9.20

8.21
8.53
8.85
9.16
9.76

8.70
9.03
9.36
9.68
10.3

9.64
10.0
10.3
10.7
11.3

10.5
10.9
11.3
11.6
12.3

11.4
11.8
12.1
12.5
13.1

12.2
12.5
12.9
13.2
13.9

3000
3200
3400
3600
3800

6.54
6.95
7.36

6.88
7.31
7.73

7.22
7.67
8.10
8.53
8.95

7.56
8.02
8.47
8.91
9.34

7.88
8.36
8.83
9.28
9.72

8.53
9.03
9.52
10.0
10.5

9.16
9.68
10.2
10.7
11.2

9.76
10.3
10.8
11.3
11.8

10.3
10.9
11.4
12.0
12.4

10.9
11.5
12.0
12.5
13.0

12.0
12.5
13.1
13.6
14.0

12.9
13.5
14.0
14.4
14.8

13.7
14.2
14.7
15.0
15.3

14.4
14.8
15.2
15.4
15.5

4000
4200
4400
4600
4800

9.36
9.76
10.2
10.5
10.9

9.76
10.2
10.6
11.0
11.3

10.2
10.6
11.0
11.4
11.8

10.9
11.3
11.8
12.2
12.5

11.6
12.1
12.5
12.9
13.2

12.3
12.7
13.1
13.5
13.9

12.9
13.3
13.7
14.1
14.4

13.5
13.9
14.2
14.5
14.8

14.4
14.7
15.0
15.2
15.4

15.1
15.3
15.4
15.5
15.5

15.4
15.5
15.5
15.3
15.1

15.5
15.4
15.1
14.7
14.1

5000
5200
5400
5600
5800

11.3
11.6
12.0
12.3
12.6

11.7
12.1
12.4
12.7
13.0

12.1
12.5
12.8
13.1
13.4

12.9
13.2
13.6
13.9
14.1

13.6
13.9
14.2
14.5
14.7

14.2
14.5
14.7
14.9
15.1

14.7
14.9
15.1
15.3
15.4

15.1
15.2
15.4
15.5
15.5

15.5
15.5
15.5
15.4
15.2

15.4
15.2
14.9
14.5
14.0

14.7
14.2
13.6

13.4

12.9

13.3

13.7

14.4

14.9

15.3

15.5

15.5

14.9

13.4

6000

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.
Sprocket surface speeds over 6,500 fpm; special pulleys are required. See Engineering Section II-5, Sprocket Diameter—Speed, on
page 138.

Page 80

R

The Gates Rubber Company

Horsepower Rating for 1.00 Inch Wide
H Section Belt (0.500 Inch Pitch)
RPM
of
Faster
Shaft

725
870
950
1160
1425

Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)
14L
2.228

16L
2.546

18L
2.865

19L
3.024

20L
3.183

21L
3.342

22L
3.501

24L
3.820

26L
4.138

28L
4.456

30L
4.775

32L
5.093

36L
5.730

40L
6.366

44L
7.003

48L
7.639

1.75
2.09
2.29
2.79

1.99
2.39
2.61
3.18
3.91

2.24
2.69
2.94
3.58
4.39

2.37
2.84
3.10
3.78
4.63

2.49
2.99
3.26
3.97
4.87

2.62
3.14
3.42
4.17
5.11

2.74
3.28
3.58
4.37
5.35

2.99
3.58
3.91
4.76
5.82

3.23
3.88
4.23
5.15
6.29

3.48
4.17
4.55
5.54
6.76

3.73
4.46
4.87
5.92
7.23

3.97
4.76
5.19
6.31
7.69

4.46
5.34
5.82
7.07
8.61

4.95
5.92
6.45
7.82
9.51

5.44
6.50
7.08
8.57
10.4

5.92
7.07
7.69
9.30
11.2

4.78

5.66
9.06
10.8
0.33
0.65

5.95
9.51
11.3
0.34
0.69

6.24
9.95
11.8
0.36
0.72

6.53
10.4
12.3
0.38
0.76

7.11
11.2
13.3
0.41
0.83

7.68
12.1
14.3
0.45
0.89

8.24
12.9
15.1
0.48
0.96

8.80
13.7
16.0
0.52
1.03

9.35
14.5
16.8
0.55
1.10

10.4
15.9
18.2
0.62
1.24

11.5
17.2
19.4
0.69
1.38

12.5
18.3
20.4
0.76
1.51

13.5
19.3
21.0
0.83
1.65

1750
2850
3450
100
200

0.24
0.48

0.28
0.55

5.37
8.61
10.3
0.31
0.62

300
400
500
600
700

0.72
0.96
1.20
1.45
1.69

0.83
1.10
1.38
1.65
1.93

0.93
1.24
1.55
1.86
2.17

0.98
1.31
1.63
1.96
2.29

1.03
1.38
1.72
2.06
2.41

1.08
1.45
1.81
2.17
2.53

1.14
1.51
1.89
2.27
2.65

1.24
1.65
2.06
2.47
2.88

1.34
1.79
2.23
2.68
3.12

1.45
1.93
2.41
2.88
3.36

1.55
2.06
2.58
3.09
3.60

1.65
2.20
2.75
3.29
3.84

1.86
2.47
3.09
3.70
4.31

2.06
2.75
3.43
4.11
4.78

2.27
3.02
3.77
4.51
5.25

2.47
3.29
4.11
4.92
5.72

800
900
1000
1100
1200

1.93
2.17
2.41
2.65

2.20
2.47
2.75
3.02
3.29

2.47
2.78
3.09
3.40
3.70

2.61
2.94
3.26
3.58
3.91

2.75
3.09
3.43
3.77
4.11

2.88
3.24
3.60
3.96
4.31

3.02
3.40
3.77
4.14
4.51

3.29
3.70
4.11
4.51
4.92

3.57
4.01
4.45
4.89
5.32

3.84
4.31
4.78
5.25
5.72

4.11
4.62
5.12
5.62
6.12

4.38
4.92
5.46
5.99
6.52

4.92
5.52
6.12
6.72
7.30

5.46
6.12
6.78
7.43
8.08

5.99
6.72
7.43
8.15
8.85

6.52
7.30
8.08
8.85
9.60

1300
1400
1500
1600
1700

3.57
3.84
4.11
4.38
4.65

4.01
4.31
4.62
4.92
5.22

4.23
4.55
4.87
5.19
5.51

4.45
4.78
5.12
5.46
5.79

4.67
5.02
5.37
5.72
6.07

4.89
5.25
5.62
5.99
6.35

5.32
5.72
6.12
6.52
6.91

5.76
6.19
6.62
7.04
7.47

6.19
6.65
7.11
7.56
8.02

6.62
7.11
7.60
8.08
8.56

7.04
7.56
8.08
8.59
9.10

7.89
8.47
9.04
9.60
10.2

8.72
9.35
9.97
10.6
11.2

9.54
10.2
10.9
11.5
12.2

10.3
11.1
11.8
12.5
13.2

1800
1900
2000
2100
2200

4.92
5.19
5.46

5.52
5.82
6.12
6.42
6.72

5.82
6.14
6.45
6.76
7.08

6.12
6.45
6.78
7.11
7.43

6.42
6.76
7.11
7.45
7.79

6.72
7.08
7.43
7.79
8.15

7.30
7.69
8.08
8.47
8.85

7.89
8.31
8.72
9.13
9.54

8.47
8.91
9.35
9.79
10.2

9.04
9.51
9.97
10.4
10.9

9.60
10.1
10.6
11.1
11.5

10.7
11.2
11.8
12.3
12.8

11.8
12.4
12.9
13.5
14.0

12.8
13.4
14.0
14.6
15.2

13.8
14.5
15.1
15.7
16.2

2300
2400
2500
2600
2800

7.01
7.30
7.60
7.89
8.47

7.39
7.69
8.00
8.31
8.91

7.76
8.08
8.40
8.72
9.35

8.13
8.47
8.80
9.13
9.79

8.50
8.85
9.19
9.54
10.2

9.23
9.60
9.97
10.3
11.1

9.94
10.3
10.7
11.1
11.9

10.6
11.1
11.5
11.9
12.7

11.3
11.8
12.2
12.6
13.5

12.0
12.5
12.9
13.4
14.2

13.3
13.8
14.3
14.8
15.7

14.6
15.1
15.6
16.1
17.0

15.7
16.2
16.7
17.2
18.1

16.8
17.3
17.8
18.3
19.1

3000
3200
3400
3600
3800

9.04
9.60
10.2

9.51
10.1
10.7

9.97
10.6
11.2
11.8
12.4

10.4
11.1
11.7
12.3
12.9

10.9
11.5
12.2
12.8
13.4

11.8
12.5
13.2
13.8
14.5

12.6
13.4
14.1
14.8
15.4

13.5
14.2
15.0
15.7
16.3

14.3
15.1
15.8
16.5
17.2

15.1
15.9
16.6
17.3
18.0

16.5
17.3
18.0
18.7
19.3

17.8
18.6
19.3
19.9
20.4

18.9
19.6
20.2
20.7
21.1

19.9
20.5
20.9
21.2
21.4

4000
4200
4400
4600
4800

12.9
13.5
14.0
14.6
15.1

13.5
14.1
14.6
15.1
15.7

14.0
14.6
15.2
15.7
16.2

15.1
15.7
16.2
16.8
17.3

16.1
16.7
17.2
17.8
18.3

17.0
17.6
18.1
18.7
19.1

17.8
18.4
18.9
19.4
19.9

18.6
19.1
19.6
20.1
20.5

19.9
20.3
20.7
21.0
21.2

20.8
21.1
21.3
21.4
21.4

21.3
21.4
21.4
21.2
20.8

21.4
21.2
20.8
20.3
19.5

5000
5200
5400
5600
5800

15.6
16.1
16.5
17.0
17.4

16.2
16.7
17.1
17.6
18.0

16.7
17.2
17.7
18.1
18.5

17.8
18.3
18.7
19.1
19.5

18.8
19.2
19.6
20.0
20.3

19.6
20.0
20.3
20.6
20.9

20.3
20.6
20.9
21.1
21.3

20.8
21.1
21.2
21.4
21.4

21.4
21.4
21.4
21.2
20.9

21.2
21.0
20.6
20.0
19.4

20.3
19.6
18.8

18.5

17.8

18.4

18.9

19.9

20.6

21.1

21.4

21.4

20.6

18.5

6000

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.
Sprocket surface speeds over 6,500 fpm; special pulleys are required. See Engineering Section II-5, Sprocket Diameter—Speed, on
page 138.

R

The Driving Force in Power Transmission.

Page 81

Horsepower Rating for 1.50 Inch Wide
H Section Belt (0.500 Inch Pitch)
Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)

RPM
of
Faster
Shaft

725
870
950
1160
1425

14L
2.228

16L
2.546

18L
2.865

19L
3.024

20L
3.183

21L
3.342

22L
3.501

24L
3.820

26L
4.138

28L
4.456

30L
4.775

32L
5.093

36L
5.730

40L
6.366

44L
7.003

48L
7.639

2.71
3.25
3.55
4.33

3.09
3.71
4.05
4.94
6.06

3.48
4.17
4.56
5.55
6.81

3.67
4.40
4.81
5.86
7.18

3.87
4.63
5.06
6.17
7.55

4.06
4.87
5.31
6.47
7.93

4.25
5.10
5.56
6.77
8.30

4.63
5.55
6.06
7.38
9.03

5.02
6.01
6.56
7.99
9.77

5.40
6.47
7.06
8.59
10.5

5.78
6.93
7.55
9.19
11.2

6.17
7.38
8.05
9.79
11.9

6.93
8.29
9.03
11.0
13.4

7.68
9.19
10.0
12.1
14.8

8.44
10.1
11.0
13.3
16.1

9.19
11.0
11.9
14.4
17.5

7.42

8.79
14.1
16.8
0.51
1.01

9.24
14.8
17.6
0.53
1.07

9.69
15.4
18.4
0.56
1.12

10.1
16.1
19.2
0.59
1.18

11.0
17.5
20.7
0.64
1.28

11.9
18.8
22.1
0.69
1.39

12.8
20.0
23.5
0.75
1.50

13.7
21.2
24.8
0.80
1.60

14.5
22.4
26.1
0.85
1.71

16.2
24.6
28.3
0.96
1.92

17.8
26.7
30.1
1.07
2.14

19.4
28.5
31.6
1.18
2.35

20.9
30.0
32.6
1.28
2.56
3.84
5.11
6.38
7.63
8.88

1750
2850
3450
100
200

0.37
0.75

0.43
0.85

8.34
13.4
16.0
0.48
0.96

300
400
500
600
700

1.12
1.50
1.87
2.24
2.62

1.28
1.71
2.14
2.56
2.99

1.44
1.92
2.40
2.88
3.36

1.52
2.03
2.54
3.04
3.55

1.60
2.14
2.67
3.20
3.73

1.68
2.24
2.80
3.36
3.92

1.76
2.35
2.94
3.52
4.10

1.92
2.56
3.20
3.84
4.48

2.08
2.78
3.47
4.16
4.85

2.24
2.99
3.73
4.48
5.22

2.40
3.20
4.00
4.79
5.59

2.56
3.41
4.26
5.11
5.96

2.88
3.84
4.79
5.74
6.69

3.20
4.26
5.32
6.38
7.42

3.52
4.69
5.85
7.01
8.15

800
900
1000
1100
1200

2.99
3.36
3.73
4.10

3.41
3.84
4.26
4.69
5.11

3.84
4.32
4.79
5.27
5.74

4.05
4.56
5.06
5.56
6.06

4.26
4.79
5.32
5.85
6.38

4.48
5.03
5.59
6.14
6.69

4.69
5.27
5.85
6.43
7.01

5.11
5.74
6.38
7.01
7.63

5.53
6.22
6.90
7.58
8.26

5.96
6.69
7.42
8.15
8.88

6.38
7.16
7.95
8.72
9.50

6.80
7.63
8.46
9.29
10.1

7.63
8.57
9.50
10.4
11.3

8.46
9.50
10.5
11.5
12.5

9.29
10.4
11.5
12.6
13.7

10.1
11.3
12.5
13.7
14.9

1300
1400
1500
1600
1700

5.53
5.96
6.38
6.80
7.21

6.22
6.69
7.16
7.63
8.10

6.56
7.06
7.55
8.05
8.54

6.90
7.42
7.95
8.46
8.98

7.24
7.79
8.34
8.88
9.42

7.58
8.15
8.72
9.29
9.86

8.26
8.88
9.50
10.1
10.7

8.93
9.60
10.3
10.9
11.6

9.60
10.3
11.0
11.7
12.4

10.3
11.0
11.8
12.5
13.3

10.9
11.7
12.5
13.3
14.1

12.2
13.1
14.0
14.9
15.8

13.5
14.5
15.5
16.4
17.4

14.8
15.9
16.9
17.9
18.9

16.0
17.2
18.3
19.4
20.4

1800
1900
2000
2100
2200

7.63
8.05
8.46

8.57
9.03
9.50
9.96
10.4

9.03
9.52
10.0
10.5
11.0

9.50
10.0
10.5
11.0
11.5

9.96
10.5
11.0
11.6
12.1

10.4
11.0
11.5
12.1
12.6

11.3
11.9
12.5
13.1
13.7

12.2
12.9
13.5
14.2
14.8

13.1
13.8
14.5
15.2
15.9

14.0
14.8
15.5
16.2
16.9

14.9
15.7
16.4
17.2
17.9

16.6
17.5
18.3
19.1
19.9

18.3
19.2
20.1
20.9
21.8

19.9
20.8
21.8
22.7
23.5

21.4
22.4
23.4
24.3
25.2

2300
2400
2500
2600
2800

10.9
11.3
11.8
12.2
13.1

11.5
11.9
12.4
12.9
13.8

12.0
12.5
13.0
13.5
14.5

12.6
13.1
13.7
14.2
15.2

13.2
13.7
14.3
14.8
15.9

14.3
14.9
15.5
16.0
17.2

15.4
16.0
16.7
17.3
18.5

16.5
17.2
17.8
18.5
19.7

17.6
18.3
19.0
19.6
20.9

18.6
19.4
20.1
20.8
22.1

20.7
21.4
22.2
22.9
24.3

22.6
23.4
24.2
24.9
26.3

24.4
25.2
26.0
26.7
28.1

26.1
26.9
27.6
28.4
29.7

3000
3200
3400
3600
3800

14.0
14.9
15.8

14.8
15.7
16.6

15.5
16.4
17.4
18.3
19.2

16.2
17.2
18.1
19.1
20.0

16.9
17.9
18.9
19.9
20.8

18.3
19.4
20.4
21.4
22.4

19.6
20.8
21.8
22.9
23.9

20.9
22.1
23.2
24.3
25.3

22.2
23.4
24.5
25.6
26.7

23.4
24.6
25.8
26.9
27.9

25.6
26.9
28.0
29.1
30.0

27.6
28.8
29.9
30.8
31.6

29.4
30.5
31.4
32.1
32.7

30.8
31.8
32.5
33.0
33.2

4000
4200
4400
4600
4800

20.1
20.9
21.8
22.6
23.4

20.9
21.8
22.7
23.5
24.3

21.8
22.7
23.5
24.4
25.2

23.4
24.3
25.2
26.1
26.9

24.9
25.8
26.7
27.6
28.4

26.3
27.3
28.1
28.9
29.7

27.6
28.5
29.4
30.1
30.8

28.8
29.7
30.5
31.2
31.8

30.8
31.5
32.1
32.6
33.0

32.3
32.8
33.1
33.2
33.2

33.1
33.2
33.2
32.9
32.3

33.2
32.9
32.3
31.4
30.3

5000
5200
5400
5600
5800

24.2
24.9
25.6
26.3
27.0

25.1
25.8
26.6
27.3
27.9

26.0
26.7
27.4
28.1
28.8

27.6
28.4
29.1
29.7
30.3

29.1
29.8
30.4
31.0
31.5

30.4
31.0
31.5
32.0
32.4

31.4
32.0
32.4
32.8
33.0

32.3
32.7
33.0
33.2
33.2

33.2
33.2
33.1
32.9
32.5

33.0
32.5
31.9
31.1
30.0

31.5
30.5
29.2

28.8

27.6

28.5

29.4

30.8

32.0

32.8

33.2

33.2

31.9

28.8

6000

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.
Sprocket surface speeds over 6,500 fpm; special pulleys are required. See Engineering Section II-5, Sprocket Diameter—Speed, on
page 138.

Page 82

R

The Gates Rubber Company

Horsepower Rating for 2.00 Inch Wide
H Section Belt (0.500 Inch Pitch)
RPM
of
Faster
Shaft

725
870
950
1160
1425

Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)
14L
2.228

16L
2.546

18L
2.865

3.79
4.55
4.97
6.06

4.33
5.20
5.67
6.92
8.48

4.87
5.84
6.38
7.78
9.53

5.14
6.17
6.73
8.20
10.1

5.41
6.49
7.08
8.63
10.6

5.68
6.81
7.43
9.06
11.1

5.95
7.13
7.78
9.48
11.6

6.49
7.78
8.48
10.3
12.6

7.03
8.42
9.18
11.2
13.7

7.56
9.06
9.88
12.0
14.7

8.10
9.70
10.6
12.9
15.7

8.63
10.3
11.3
13.7
16.7

9.70
11.6
12.6
15.4
18.7

10.8
12.9
14.0
17.0
20.7

11.8
14.1
15.4
18.6
22.6

12.9
15.4
16.7
20.2
24.4

12.3
19.7
23.5
0.71
1.42

12.9
20.7
24.6
0.75
1.50

13.6
21.6
25.7
0.79
1.57

14.2
22.6
26.8
0.82
1.65

15.4
24.4
28.9
0.90
1.79

16.7
26.3
31.0
0.97
1.94

17.9
28.0
32.9
1.05
2.09

19.1
29.7
34.7
1.12
2.24

20.3
31.4
36.5
1.20
2.39

22.7
34.5
39.6
1.35
2.69

25.0
37.3
42.2
1.50
2.99

27.2
39.8
44.2
1.65
3.29

29.3
42.0
45.7
1.79
3.59

4.03
5.37
6.71
8.04
9.37

4.48
5.97
7.45
8.93
10.4

4.93
6.56
8.19
9.81
11.4

5.37
7.16
8.93
10.7
12.4

20L
3.183

21L
3.342

22L
3.501

24L
3.820

26L
4.138

28L
4.456

30L
4.775

32L
5.093

36L
5.730

40L
6.366

44L
7.003

48L
7.639

1750
2850
3450
100
200

0.52
1.05

0.60
1.20

11.7
18.7
22.4
0.67
1.35

300
400
500
600
700

1.57
2.09
2.62
3.14
3.66

1.79
2.39
2.99
3.59
4.18

2.02
2.69
3.36
4.03
4.71

2.13
2.84
3.55
4.26
4.97

2.24
2.99
3.74
4.48
5.23

2.36
3.14
3.92
4.71
5.49

2.47
3.29
4.11
4.93
5.75

2.69
3.59
4.48
5.37
6.27

2.92
3.89
4.85
5.82
6.79

3.14
4.18
5.23
6.27
7.30

3.36
4.48
5.60
6.71
7.82

3.59
4.78
5.97
7.16
8.34

800
900
1000
1100
1200

4.18
4.71
5.23
5.75

4.78
5.37
5.97
6.56
7.16

5.37
6.04
6.71
7.38
8.04

5.67
6.38
7.08
7.78
8.48

5.97
6.71
7.45
8.19
8.93

6.27
7.04
7.82
8.60
9.37

6.56
7.38
8.19
9.00
9.81

7.16
8.04
8.93
9.81
10.7

7.75
8.71
9.66
10.6
11.6

8.34
9.37
10.4
11.4
12.4

8.93
10.0
11.1
12.2
13.3

9.51
10.7
11.9
13.0
14.2

10.7
12.0
13.3
14.6
15.9

11.9
13.3
14.7
16.2
17.6

13.0
14.6
16.2
17.7
19.2

14.2
15.9
17.6
19.2
20.9

1300
1400
1500
1600
1700

7.75
8.34
8.93
9.51
10.1

8.71
9.37
10.0
10.7
11.3

9.18
9.88
10.6
11.3
12.0

9.66
10.4
11.1
11.9
12.6

10.1
10.9
11.7
12.4
13.2

10.6
11.4
12.2
13.0
13.8

11.6
12.4
13.3
14.2
15.0

12.5
13.4
14.4
15.3
16.2

13.4
14.4
15.4
16.4
17.4

14.4
15.4
16.5
17.6
18.6

15.3
16.4
17.6
18.7
19.8

17.1
18.4
19.6
20.9
22.1

18.9
20.3
21.7
23.0
24.3

20.7
22.2
23.7
25.1
26.5

22.5
24.0
25.6
27.1
28.6

1800
1900
2000
2100
2200

10.7
11.3
11.9

12.0
12.6
13.3
13.9
14.6

12.6
13.3
14.0
14.7
15.4

13.3
14.0
14.7
15.4
16.2

13.9
14.7
15.4
16.2
16.9

14.6
15.4
16.2
16.9
17.7

15.9
16.7
17.6
18.4
19.2

17.1
18.0
18.9
19.8
20.7

18.4
19.4
20.3
21.3
22.2

19.6
20.7
21.7
22.7
23.7

20.9
21.9
23.0
24.0
25.1

23.3
24.4
25.6
26.7
27.8

25.6
26.9
28.1
29.3
30.5

27.8
29.2
30.5
31.7
33.0

30.0
31.4
32.7
34.0
35.3

2300
2400
2500
2600
2800

15.2
15.9
16.5
17.1
18.4

16.0
16.7
17.4
18.0
19.4

16.9
17.6
18.3
18.9
20.3

17.7
18.4
19.1
19.8
21.3

18.5
19.2
20.0
20.7
22.2

20.0
20.9
21.7
22.5
24.0

21.6
22.5
23.3
24.2
25.8

23.1
24.0
25.0
25.8
27.6

24.6
25.6
26.5
27.5
29.3

26.1
27.1
28.1
29.1
30.9

28.9
30.0
31.0
32.1
34.0

31.6
32.7
33.8
34.9
36.9

34.1
35.3
36.4
37.4
39.4

36.5
37.6
38.7
39.7
41.6

3000
3200
3400
3600
3800

19.6
20.9
22.1

20.7
21.9
23.2

21.7
23.0
24.3
25.6
26.9

22.7
24.0
25.4
26.7
28.0

23.7
25.1
26.5
27.8
29.2

25.6
27.1
28.6
30.0
31.4

27.5
29.1
30.6
32.1
33.5

29.3
30.9
32.5
34.0
35.5

31.0
32.7
34.3
35.9
37.3

32.7
34.5
36.1
37.6
39.0

35.9
37.6
39.2
40.7
42.0

38.7
40.4
41.9
43.2
44.3

41.1
42.7
44.0
45.0
45.8

43.2
44.5
45.5
46.1
46.5

4000
4200
4400
4600
4800

28.1
29.3
30.5
31.6
32.7

29.3
30.5
31.7
32.9
34.0

30.5
31.7
33.0
34.1
35.3

32.7
34.0
35.3
36.5
37.6

34.9
36.2
37.4
38.6
39.7

36.9
38.2
39.4
40.5
41.6

38.7
40.0
41.1
42.2
43.2

40.4
41.6
42.7
43.6
44.5

43.2
44.2
45.0
45.7
46.1

45.2
45.9
46.3
46.5
46.5

46.3
46.5
46.4
46.0
45.3

46.5
46.1
45.3
44.0
42.4

5000
5200
5400
5600
5800

33.8
34.9
35.9
36.9
37.8

35.1
36.2
37.2
38.2
39.1

36.4
37.4
38.4
39.4
40.3

38.7
39.7
40.7
41.6
42.4

40.8
41.7
42.6
43.4
44.1

42.5
43.4
44.2
44.8
45.4

44.0
44.7
45.4
45.9
46.2

45.2
45.7
46.1
46.4
46.5

46.4
46.5
46.4
46.1
45.5

46.2
45.6
44.7
43.5
42.0

44.1
42.7
40.8

40.3

38.7

40.0

41.1

43.2

44.7

45.9

46.4

46.5

44.7

40.3

6000

10.4

19L
3.024

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.
Sprocket surface speeds over 6,500 fpm; special pulleys are required. See Engineering Section II-5, Sprocket Diameter—Speed, on
page 138.

R

The Driving Force in Power Transmission.

Page 83

orsepower Rating for 3.00 Inch Wide
H Section Belt (0.500 Inch Pitch)
Rated Horsepower for Small Pulley
(Number of Grooves and Pitch Diameter, Inches)

RPM
of
Faster
Shaft

14L
2.228

725
870
950
1160
1425

6.02
7.22
7.88
9.62

16L
2.546

18L
2.865

19L
3.024

20L
3.183

21L
3.342

22L
3.501

24L
3.820

26L
4.138

28L
4.456

30L
4.775

32L
5.093

36L
5.730

40L
6.366

44L
7.003

48L
7.639

6.88
8.25
9.00
11.0
13.5

7.73
9.27
10.1
12.3
15.1

8.16
9.79
10.7
13.0
16.0

8.59
10.3
11.2
13.7
16.8

9.02
10.8
11.8
14.4
17.6

9.45
11.3
12.4
15.1
18.4

10.3
12.3
13.5
16.4
20.1

11.2
13.4
14.6
17.7
21.7

12.0
14.4
15.7
19.1
23.3

12.9
15.4
16.8
20.4
24.9

13.7
16.4
17.9
21.7
26.5

15.4
18.4
20.1
24.4
29.7

17.1
20.4
22.2
27.0
32.8

18.8
22.4
24.4
29.5
35.8

20.4
24.4
26.5
32.1
38.8

16.5

19.5
31.2
37.3
1.13
2.26

20.5
32.8
39.1
1.19
2.37

21.5
34.3
40.8
1.25
2.49

22.5
35.8
42.6
1.31
2.61

24.5
38.8
45.9
1.42
2.85

26.5
41.7
49.1
1.54
3.09

28.4
44.5
52.2
1.66
3.32

30.3
47.2
55.1
1.78
3.56

32.2
49.8
57.9
1.90
3.80

36.0
54.8
62.8
2.14
4.27

39.6
59.3
67.0
2.37
4.75

43.1
63.2
70.2
2.61
5.22

46.5
66.7
72.5
2.85
5.69

3.92
5.22
6.52
7.82
9.12

4.27
5.69
7.11
8.53
9.95

4.63
6.17
7.70
9.24
10.8

4.98
6.64
8.30
9.95
11.6

5.34
7.11
8.89
10.7
12.4

5.69
7.59
9.48
11.4
13.2

6.40
8.53
10.7
12.8
14.9

7.11
9.48
11.8
14.2
16.5

7.82
10.4
13.0
15.6
18.1

8.53
11.4
14.2
17.0
19.7

1750
2850
3450
100
200

0.83
1.66

0.95
1.90

18.5
29.7
35.5
1.07
2.14

300
400
500
600
700

2.49
3.32
4.15
4.98
5.81

2.85
3.80
4.75
5.69
6.64

3.20
4.27
5.34
6.40
7.47

3.38
4.51
5.63
6.76
7.88

3.56
4.75
5.93
7.11
8.30

3.74
4.98
6.23
7.47
8.71

800
900
1000
1100
1200

6.64
7.47
8.30
9.12

7.59
8.53
9.48
10.4
11.4

8.53
9.59
10.7
11.7
12.8

9.00
10.1
11.2
12.4
13.5

9.48
10.7
11.8
13.0
14.2

9.95
11.2
12.4
13.6
14.9

10.4
11.7
13.0
14.3
15.6

11.4
12.8
14.2
15.6
17.0

12.3
13.8
15.3
16.8
18.3

13.2
14.9
16.5
18.1
19.7

14.2
15.9
17.7
19.4
21.1

15.1
17.0
18.8
20.6
22.5

17.0
19.0
21.1
23.2
25.2

18.8
21.1
23.4
25.6
27.9

20.6
23.2
25.6
28.1
30.5

22.5
25.2
27.9
30.5
33.1

1300
1400
1500
1600
1700

12.3
13.2
14.2
15.1
16.0

13.8
14.9
15.9
17.0
18.0

14.6
15.7
16.8
17.9
19.0

15.3
16.5
17.7
18.8
20.0

16.1
17.3
18.5
19.7
20.9

16.8
18.1
19.4
20.6
21.9

18.3
19.7
21.1
22.5
23.8

19.8
21.3
22.8
24.3
25.7

21.3
22.9
24.5
26.1
27.6

22.8
24.5
26.2
27.9
29.5

24.3
26.1
27.9
29.6
31.4

27.2
29.2
31.2
33.1
35.0

30.1
32.2
34.4
36.5
38.6

32.9
35.2
37.5
39.8
42.0

35.7
38.2
40.6
43.0
45.4

1800
1900
2000
2100
2200

17.0
17.9
18.8

19.0
20.1
21.1
22.1
23.2

20.1
21.2
22.2
23.3
24.4

21.1
22.2
23.4
24.5
25.6

22.1
23.3
24.5
25.7
26.9

23.2
24.4
25.6
26.9
28.1

25.2
26.5
27.9
29.2
30.5

27.2
28.6
30.1
31.5
32.9

29.2
30.7
32.2
33.8
35.2

31.2
32.8
34.4
36.0
37.5

33.1
34.8
36.5
38.2
39.8

36.9
38.8
40.6
42.4
44.2

40.6
42.6
44.6
46.5
48.4

44.2
46.3
48.4
50.4
52.3

47.6
49.8
52.0
54.0
56.0

2300
2400
2500
2600
2800

24.2
25.2
26.2
27.2
29.2

25.5
26.5
27.6
28.6
30.7

26.8
27.9
29.0
30.1
32.2

28.0
29.2
30.3
31.5
33.8

29.3
30.5
31.7
32.9
35.2

31.8
33.1
34.4
35.7
38.2

34.3
35.7
37.0
38.4
41.0

36.7
38.2
39.6
41.0
43.8

39.1
40.6
42.1
43.6
46.5

41.4
43.0
44.6
46.1
49.1

45.9
47.6
49.3
50.9
54.0

50.2
52.0
53.7
55.3
58.5

54.2
56.0
57.7
59.4
62.5

57.9
59.7
61.4
63.0
66.0

3000
3200
3400
3600
3800

31.2
33.1
35.0

32.8
34.8
36.8

34.4
36.5
38.6
40.6
42.6

36.0
38.2
40.3
42.4
44.5

37.5
39.8
42.0
44.2
46.3

40.6
43.0
45.4
47.6
49.8

43.6
46.1
48.6
50.9
53.2

46.5
49.1
51.6
54.0
56.3

49.3
52.0
54.5
57.0
59.3

52.0
54.7
57.3
59.7
62.0

57.0
59.7
62.2
64.6
66.7

61.4
64.1
66.4
68.5
70.3

65.3
67.7
69.8
71.4
72.7

68.5
70.6
72.2
73.3
73.8

4000
4200
4400
4600
4800

44.6
46.5
48.4
50.2
52.0

46.5
48.5
50.4
52.2
54.0

48.4
50.4
52.3
54.2
56.0

52.0
54.0
56.0
57.9
59.7

55.3
57.4
59.4
61.3
63.0

58.5
60.6
62.5
64.3
66.0

61.4
63.4
65.3
67.0
68.5

64.1
66.0
67.7
69.3
70.6

68.5
70.1
71.4
72.5
73.3

71.7
72.8
73.5
73.8
73.7

73.5
73.8
73.7
73.0
71.8

73.7
73.1
71.8
69.9
67.3

5000
5200
5400
5600
5800

53.7
55.3
57.0
58.5
60.0

55.8
57.4
59.0
60.6
62.0

57.7
59.4
61.0
62.5
63.9

61.4
63.0
64.6
66.0
67.3

64.7
66.2
67.6
68.9
70.0

67.5
68.9
70.1
71.2
72.1

69.9
71.0
72.0
72.8
73.3

71.7
72.6
73.3
73.7
73.8

73.7
73.8
73.6
73.1
72.2

73.3
72.3
70.9
69.1
66.7

70.1
67.7
64.8

63.9

61.4

63.4

65.3

68.5

71.0

72.8

73.7

73.7

70.9

63.9

6000

Use this sprocket and rpm only if required to obtain speed ratio or to meet diameter limitations. See Engineering Section II-5, Sprocket
Diameter—Speed, on page 138.
Sprocket surface speeds over 6,500 fpm; special pulleys are required. See Engineering Section II-5, Sprocket Diameter—Speed, on
page 138.

Page 84

R

The Gates Rubber Company

Long Length Belting
Introduction
Long Length synchronous belting is a cost effective, low maintenance drive alternative that is especially suited for
linear movement and positioning applications. Long Length belting is available in a wide variety of belt pitches and
constructions. Applications as diverse as automated door openers, product conveying systems, positioning devices,
and office equipment are possible using the different pitches and constructions available.

Long Length Belting Designations
PolyChain GT, PowerGrip, and Synchro-Power long length belting is specified using the same width and pitch codes
as standard endless belts, except that the part designation includes an LL prefix and omits the length code. An ST
suffix may also be used to indicate a steel tensile cord construction. For example, 8mm pitch PowerGrip GT belting,
50mm wide, with steel tensile cords, would be designated LL8MR50ST.

Long Length Belting Product Listing
Standard Long Length belting is available in 8mm and 14mm pitch Poly Chain® GT®; 2mm, 3mm, 5mm, and 8mm
PowerGrip® GT®; 3mm, 5mm, 8mm, and 14mm PowerGrip® HTD®; MXL, XL, L, and H PowerGrip Timing; and T5,
T10, AT5, and AT10 Synchro-Power® Polyurethane. Available standard and standard/non-stock Long Length belting
is listed below.

Poly Chain GT Long Length Belting
8mm—14mm Pitch
Part
No.

Product
No.

Width
(mm)

Net Wt./ft.
(lb)

LL8M012GT

9305-0001

12

0.03

LL8M021GT

9305-0002

21

0.06

LL8M036GT

9305-0003

36

0.11

LL14M020GT

9305-0005

20

0.10

LL14M037GT

9305-0006

37

0.19

R

The Driving Force in Power Transmission.

Page 85

Long Length Belting — continued
PowerGrip GT—Long Length Belting
PowerGrip GT—Fiberglass Tensile

PowerGrip GT—Steel Tensile

2mm—3mm—5mm—8mm Pitch

5mm—8mm Pitch

Part
No.

Product
No.

Width
(mm)

Net Wt./ft.
(lb)

Part
No.

Product
No.

Width
(mm)

Net Wt./ft.
(lb)

LL2MR04

9396-0033

4

0.01

LL5MR15ST

9308-10043

15

0.18

LL2MR06

9396-0009

6

0.01

LL5MR25ST

9308-40417

25

0.23

LL2MR09

9396-0011

9

0.01

LL8MR20ST

9308-10049

20

0.29

LL3MR06

9396-0002

6

0.01

LL8MR30ST

9308-10050

30

0.37

LL3MR09

9396-0012

9

0.01

LL8MR50ST

9308-40433

50

0.53

LL3MR15

9396-0021

15

0.01

LL5MR09

9396-0020

9

0.01

LL5MR15

9396-0025

15

0.01

LL5MR25

9396-0018

25

0.05

LL8MR20

9396-0029

20

0.08

PowerGrip HTD—Long Length Belting
PowerGrip HTD Belting—Fiberglass Tensile

PowerGrip HTD Belting—Steel Tensile

3mm—5mm—8mm—14mm Pitch

14mm Pitch

Part
No.

Product
No.

Width
(mm)

Net Wt./ft.
(lb)

Part
No.

Product
No.

Width
(mm)

Net Wt./ft.
(lb)

LL3M06

9308-0044

6

0.01

LL14M40ST

9308-10016

40

0.76

LL3M09

9308-0003

9

0.01

LL14M55ST

9308-10051

55

1.02

LL3M15

9308-0084

15

0.01

LL14M85ST

9308-10084

85

1.51

LL5M09

9308-0045

9

0.01

LL5M15

9308-0033

15

0.01

LL5M25

9308-0025

25

0.05

LL8M20

9308-0001

20

0.08

LL8M30

9308-0004

30

0.13

LL8M50

9308-0005

50

0.21

LL8M85

9308-0006

85

0.36

LL14M40

9308-10009

40

0.26

LL14M55

9308-10020

55

0.35

LL14M85

9308-10057

85

0.55

Page 86

R

The Gates Rubber Company

Long Length Belting — continued

PowerGrip Timing—Long Length Belting
Mini-Pitch (0.080″/MXL)—Fiberglass Tensile
Part
No.

Product
No.

Width
(in)

LL025MXL

9314-2020

1

LL037MXL

9314-2014

3

LL050MXL

9314-2038

1

Net Wt./ft.
(lb)

4

0.01

8

0.02

2

0.02

1/5″ Pitch (0.200″/XL)—Fiberglass Tensile
Part
No.

Product
No.

Width
(in)

LL025XL

9314-0001

1

LL037XL

9314-0002

3

LL050XL

9314-2012

1

LL075XL

9314-2090

3

1/5″ Pitch (0.200″/XL)—Steel Tensile

Net Wt./ft.
(lb)

Part
No.

Product
No.

4

0.01

LL025XLST

9314-10028

1

8

0.01

LL037XLST

9314-10029

3

2

0.03

LL050XLST

9314-10030

1

4

0.04

3/8″ Pitch (0.375″/L)—Fiberglass Tensile
Part
No.

Product
No.

Width
(in)

LL037L

9314-2089

3

LL050L

9314-0004

1

LL075L

9314-0007

3

LL100L

9314-0015

Net Wt./ft.
(lb)

Part
No.

Product
No.

8

0.02

LL050LST

9314-10035

1

2

0.02

LL075LST

9314-10036

3

4

0.04

1

0.05

Part
No.

Product
No.

Width
(in)

LL050H

9314-0003

1

LL075H

9314-0006

3

LL100H

9314-0008

LL150H

9314-0017

LL200H
LL300H

4

0.06

8

0.07

2

0.08

Width
(in)

Net Wt./ft.
(lb)

2

0.16

4

0.19

1/2″ Pitch (0.500″/H)—Steel Tensile

Net Wt./ft.
(lb)

Part
No.

Product
No.

2

0.04

LL075HST

9314-10011

4

0.06

LL100HST

9314-10037

1

0.12

1

2

0.12

9314-0021

2

0.16

9314-0025

3

0.24

R

Net Wt./ft.
(lb)

3/8″ Pitch (0.375″/L)—Steel Tensile

1/2″ Pitch (0.500″/H)—Fiberglass Tensile

1

Width
(in)

The Driving Force in Power Transmission.

Width
(in)

Net Wt./ft.
(lb)

4

0.22

1

0.25

3

Page 87

Long Length Belting — continued
Synchro-Power PolyUrethane Long Length Belting
T5 Pitch
Part
No.

Width
(mm)

AT5 Pitch
Net Wt./ft.
(lb)

Part
No.

Width
(mm)

Net Wt./ft.
(lb)

U6T5LL

6*

.01

U6AT5LL

6*

.01

U8T5LL

8

.01

U10AT5LL

10*

.02

U10T5LL

10*

.02

U16AT5LL

16*

.03

U12T5LL

12

.02

U20AT5LL

20*

.04

U16T5LL

16*

.03

U25AT5LL

25*

.05

U20T5LL

20

.03

U32AT5LL

32*

.06

U25T5LL

25*

.04

U50AT5LL

50*

.10

U32T5LL

32*

.05

U50T5LL

50*

.08

T10 Pitch
Part
No.

Width
(mm)

AT10 Pitch
Net Wt./ft.
(lb)

Part
No.

Width
(mm)

Net Wt./ft.
(lb)

U12T10LL

12

.04

U16AT10LL

16*

.06

U16T10LL

16*

.05

U20AT10LL

20

.08

U20T10LL

20

.07

U25AT10LL

25*

.10

U25T10LL

25*

.08

U32AT10LL

32*

.13

U32T10LL

32*

.11

U40AT10LL

40

.16

U40T10LL

40

.13

U50AT10LL

50*

.20

U50T10LL

50*

.16

U75AT10LL

75

.30

U75T10LL

75*

.25

U100AT10LL

100

.40

U100T10LL

100*

.33

T20 Pitch
Part
No.

Width
(mm)

AT20 Pitch
Net Wt./ft.
(lb)

Part
No.

Width
(mm)

Net Wt./ft.
(lb)

U25T10LL

25*

.13

U25AT20LL

25

.17

U32T20LL

32*

.17

U32AT20LL

32

.22

U50T20LL

50*

.27

U50AT20LL

50

.34

U75T20LL

75*

.40

U75AT20LL

75

.50

U100T20LL

100*

.54

U100AT20LL

100

.67

U120AT20LL

120*

.81

U150AT20LL

150*

1.01

*Stock size. All others are Standard/Non-Stock product.

Page 88

R

The Gates Rubber Company

Long Length Belting — continued
Synchro-Power PolyUrethane Long Length Belting — continued
5mm Pitch HTD

1/5″ Pitch (0.200″/XL)
Width
(mm)

Net Wt./ft.
(lb)

Part
No.

Width
(mm)

Net Wt./ft.
(lb)

U.25INXL LL

.250

.01

U10MTD5MLL

10

.03

U.31INXL LL

.310

.01

U15MTD5MLL

15

.04

U.375INXL LL

.375

.01

U25MTD5MLL

25

.07

U.50INXL LL

.500

.02

U50MTD5MLL

50

.13

U.75INXL LL

.750

.03

U1.00INXL LL

1.000

.03

U2.00INXL LL

2.000

.07

Part
No.

8mm Pitch HTD

3/8″ Pitch (0.375″/L)
Part
No.

Width
(mm)

Net Wt./ft.
(lb)

Part
No.

Width
(mm)

Net Wt./ft.
(lb)

U.375INL LL

.375*

.02

U10MTD8MLL

10

.04

U.50INL LL

.500*

.02

U15MTD8MLL

15

.06

U.75INL LL

.750*

.03

U20MTD8MLL

20

.08

U1.00INL LL

1.000*

.04

U30MTD8MLL

30

.13

U1.50INL LL

1.500

.06

U50MTD8MLL

50

.21

U2.00INL LL

2.000

.08

U85MTD8MLL

85

.36

U100MTD8MLL

100

.42

14mm Pitch HTD

1/2″ Pitch (0.500″/H)
Part
No.

Width
(mm)

Net Wt./ft.
(lb)

Part
No.

Width
(mm)

Net Wt./ft.
(lb)

U.50INH LL

.500*

.02

U25MTD14MLL

25

.19

U.75INH LL

.750*

.04

U40MTD14MLL

40

.30

U1.00INH LL

1.000*

.05

U55MTD14MLL

55

.41

U1.50INH LL

1.500*

.07

U85MTD14MLL

85

.64

U2.00INH LL

2.000*

.09

U100MTD14MLL

100

.75

U3.00INH LL

3.000

.14

U4.00INH LL

4.000

.19

7/8″Pitch (0.875″/XH)
Part
No.

Width
(mm)

Net Wt./ft.
(lb)

U1.00INXHLL

1.000

.22

U1.50INXHLL

1.500

.32

U2.00INXHLL

2.000

.43

U3.00INXHLL

3.000

.65

U4.00INXHLL

4.000

.86

*Stock size. All others are Standard/Non-Stock product.

R

The Driving Force in Power Transmission.

Page 89

Long Length Belting Specifications
The available standard pitches, with belt dimensions, constructions, and allowable working tensions (Ta), are shown below.

Poly Chain GT Belting
8mm Pitch—Aramid Tensile Cord
Belt Width (mm)

12

21

36

Ta (lb)

304

534

913

Poly Chain GT Belting
14mm Pitch - Aramid Tensile Cord
Belt Width (mm)

20

37

Ta (lb)

835

1545

PowerGrip GT Belting
3MR Pitch - Fiberglass Tensile Cord
Belt Width (mm)

6

9

15

Ta (lb)

32.8

54.4

97.4

PowerGrip GT Belting
5MR Pitch - Fiberglass Tensile Cord
Belt Width (mm)

9

15

25

Ta (lb)

77.9

136.8

253.7

5MR Pitch - Steel Tensile Cord
Belt Width (mm)

15

25

Ta (lb)

184.9

342.8

PowerGrip GT Belting
8MR Pitch - Fiberglass Tensile Cord
Belt Width (mm)

20

Ta (lb)

190

8MR Pitch - Steel Tensile Cord
Belt Width (mm)

20

30

50

Ta (lb)

369

579

1073

Page 90

R

The Gates Rubber Company

Long Length Belting Specifications — continued
PowerGrip HTD Belting
3M Pitch - Fiberglass Tensile Cord
Belt Width (mm)

6

9

15

Ta (lb)

20.7

34.4

61.4

PowerGrip HTD Belting
5M Pitch - Fiberglass Tensile Cord
Belt Width (mm)

9

15

25

Ta (lb)

55.6

97.6

181

PowerGrip HTD Belting
8M Pitch - Fiberglass Tensile Cord
Belt Width (mm)

20

30

50

Ta (lb)

190

216

552

PowerGrip HTD Belting
14M Pitch - Fiberglass Tensile Cord
Belt Width (mm)

40

55

85

Ta (lb)

909

1363

2263

14M Pitch - Steel Tensile Cord
Belt Width (mm)

40

55

85

Ta (lb)

1227

1840

3055

PowerGrip Timing Belting

.200 in

XL Pitch - Fiberglass Tensile Cord
Belt Width (in)

0.250

0.375

0.500

Ta (lb)

6.3

9.8

14.4

.05 in

.091 in

XL Pitch - Steel Tensile Cord
Belt Width (in)

0.250

0.375

0.500

Ta (lb)

7.8

12.2

17.8

R

The Driving Force in Power Transmission.

Page 91

Long Length Belting Specifications — continued
PowerGrip Timing Belting
L Pitch - Fiberglass Tensile Cord
Belt Width (in)

0.375

0.500

0.750

Ta (lb)

15.7

24.7

35.9

L Pitch - Steel Tensile Cord
Belt Width (in)

0.375

0.500

0.750

Ta (lb)

15.7

24.7

35.9

PowerGrip Timing Belting
H Pitch - Fiberglass Tensile Cord
Belt Width (in)

0.500

0.750

1.000

Ta (lb)

69.7

109.5

159.6

H Pitch - Steel Tensile Cord
Belt Width (in)

0.750

1.000

Ta (lb)

109.5

159.6

Synchro-Power Polyurethane Belting
AT5 Pitch - Steel Tensile Cord
Belt Width (mm)

6

10

16

Ta (lb)

130

137

236

Belt Width (mm)

25

32

50

Ta (lb)

389

499

792

Synchro-Power Polyurethane Belting
AT10 Pitch - Steel Tensile Cord
Belt Width (mm)

16

25

32

Ta (lb)

517

819

1059

Belt Width (mm)

50

75*

100*

Ta (lb)

1696

2571

3397

Page 92

R

The Gates Rubber Company

Long Length Belting Specifications — continued
Synchro-Power Polyurethane Belting
T5 Pitch - Steel Tensile Cord
Belt Width (mm)

6

10

16

Ta (lb)

36

63

105

Belt Width (mm)

25

32

Ta (lb)

175

225

Synchro-Power Polyurethane Belting
T10 Pitch - Steel Tensile Cord
Belt Width (mm)

16

25

32

Ta (lb)

258

418

558

Belt Width (mm)

50

75

100

Ta (lb)

859

1318

1759

Synchro-Power Polyurethane Belting
L Pitch - Steel Tensile Cord
Belt Width (in)

0.375

0.500

0.750

Ta (lb)

135

180

292

Belt Width (in)

1.000

1.500*

Ta (lb)

389

598

*Standard/Non-Stock belt width

Synchro-Power Polyurethane Belting
H Pitch - Steel Tensile Cord
Belt Width (in)

0.500

0.750

1.000

Ta (lb)

198

319

441

Belt Width (in)

1.500

2.000

Ta (lb)

659

900

R

The Driving Force in Power Transmission.

Page 93

Long Length Belting Specifications — continued
Drive Selection
Due to the unique nature of long length applications, special drive design procedures must be followed. Rather than
designing a drive based on a single load at a continuous speed, long length application designs typically consider
acceleration/deceleration loads generated by the mass being moved and placed, as well as the orientation of the
drive (vertical or horizontal). Maximum dynamic drive tensions are then compared to allowable working tensions (Ta)
for proper belt width selection. Considering the drive design procedures unique to Long Length belting applications,
it is suggested that designers contact Gates Power Transmission Product Application for a drive system analysis.

Belt Clamping Fixtures
Long length applications typically require that the ends of the belt be mechanically fastened to the component being
positioned. A common means of attachment is to use a belt clamping fixture, which clamps the ends of the belt
between a grooved plate and a flat top plate. Belt clamping fixtures can have a variety of configurations, depending
on belt pitch, belt tooth profile, and system attachment requirements. Contact Gates Power Transmission Product
Application for groove dimensions that are suitable for use with clamping fixtures. A minimum of 6 belt teeth should
be engaged in the belt clamping fixture to achieve optimum performance. As shown below, mechanical fasteners
should be placed beyond the belt’s top width in order to maintain belt integrity.

Page 94

R

The Gates Rubber Company

PowerGrip Twin Power Belts
Gates PowerGrip Twin Power Belts have teeth on both sides to provide synchronization from both driving surfaces.
This configuration accommodates unique drive designs such as multipoint drives, shaft rotation reversal, and
serpentine drives. Twin Power Belts are similar in construction to regular synchronous belts, including nylon-faced
teeth on both sides.

Specifying Twin Power Belts
PowerGrip Twin Power Belts are specified using the same code as standard PowerGrip belts, except that they include a
TP prefix. Thus, a Twin Power PowerGrip GT2 belt with 8mm pitch, 1600mm pitch length and 30mm width is specified as
TP1600-8MGT-30. Similarly, a Twin Power PowerGrip Timing belt with an L pitch, 24″ pitch length, and 1″ width is
specified as TP240L100. A listing of available sizes, both Stock and Standard/Non-Stock, is shown below.
Standard/non-stock belts may require manufacturing lead time. Contact your local Gates representative for availability.
PowerGrip GT Twin Power belts are available in 3mm and 5mm pitches as non-stock, made to order items. Contact your
Gates representative for availability.

Twin Power Drive Selection
Gates Twin Power Belts can transmit 100% of their maximum rated load capacity from either side of the belt or in
combination where the sum of the loads carried by both sides of the belt does not exceed the maximum rating of the belt.
For example, a Twin Power Belt rated at 12 HP could be used with 50% of the maximum rated load on one side and 50%
on the other; or 90% on one side and 10% on the other.

8mm Pitch PowerGrip GT2 TwinPower Stock Belt Lengths
Pitch Length

Pitch Length

Part No.

(mm)

(in)

No. of Teeth

Part No.

(mm)

(in)

No. of Teeth

TP840-8MGT
TP880-8MGT
TP920-8MGT
TP960-8MGT
TP1040-8MGT

840
880
920
960
1040

33.08
34.65
36.23
37.80
40.95

105
110
115
120
130

TP1760-8MGT
TP1800-8MGT
TP2000-8MGT
TP2200-8MGT
TP2400-8MGT

1760
1800
2000
2200
2400

69.30
70.88
78.75
86.63
94.50

220
225
250
275
300

TP1120-8MGT
TP1200-8MGT
TP1224-8MGT
TP1280-8MGT
TP1440-8MGT
TP1600-8MGT

1120
1200
1224
1280
1440
1600

44.10
47.25
48.20
50.40
56.70
63.00

140
150
153
160
180
200

TP2600-8MGT
TP2800-8MGT
TP3048-8MGT
TP3280-8MGT
TP3600-8MGT
TP4400-8MGT

2600
2800
3048
3280
3600
4400

102.38
110.25
120.02
129.15
141.75
173.25

325
350
381
410
450
550

8M PowerGrip GT2 Twin Power — Reference Dimensions
8mm
.315 in.

8M GT2 TwinPower Stock Belt Widths

1.37mm
.054 in.

Belt Width

Belt Width
Code

(mm)

(in)

20
30
50
85

20
30
50
85

0.787
1.181
1.969
3.346

8.18mm
.322 in.

R

The Driving Force in Power Transmission.

Page 95

PowerGrip Twin Power Belts — continued
14mm Pitch PowerGrip GT2 TwinPower Stock Belt Lengths
Pitch Length

Pitch Length

Part No.

(mm)

(in)

No. of Teeth

Part No.

(mm)

(in)

No. of Teeth

TP966-14MGT
TP1190-14MGT
TP1400-14MGT
TP1610-14MGT
TP1778-14MGT

966
1190
1400
1610
1778

38.03
46.85
55.12
63.38
70.00

69
85
100
115
127

TP2590-14MGT
TP2800-14MGT
TP3150-14MGT
TP3360-14MGT
TP3500-14MGT

2590
2800
3150
3360
3500

101.96
110.23
124.01
132.28
137.79

185
200
225
240
250

TP1890-14MGT
TP2100-14MGT
TP2310-14MGT
TP2450-14MGT

1890
2100
2310
2450

74.41
82.67
90.94
96.45

135
150
165
175

TP3850-14MGT
TP4326-14MGT
TP4578-14MGT

3850
4326
4578

151.57
170.31
180.23

275
309
327

14M PowerGrip GT2 — Reference Dimensions
14mm
.552 in.

14MGT2 TwinPower Stock Belt Widths

2.8mm
.110 in.

Belt Width

Belt Width
Code

(mm)

(in)

40
55
85
115
170

40
55
85
115
170

1.575
2.165
3.346
4.528
6.693

15mm
.590 in.

1/5″ (0.200″) Pitch XL PowerGrip TwinPower Timing Stock Belt Lengths
Part No.

Pitch Length
(in)

No. of Teeth

Part No.

Pitch Length
(in)

No. of Teeth

TP140XL
TP150XL
TP160XL
TP170XL
TP180XL

14.00
15.00
16.00
17.00
18.00

70
75
80
85
90

TP240XL
TP250XL
TP260XL
TP270XL
TP280XL

24.00
25.00
26.00
27.00
28.00

120
125
130
135
140

TP190XL
TP200XL
TP210XL
TP220XL
TP230XL

19.00
20.00
21.00
22.00
23.00

95
100
105
110
115

TP290XL
TP300XL
TP310XL
TP330XL
TP340XL

29.00
30.00
31.00
33.00
34.00

145
150
155
165
170

XL PowerGrip Twin Power — Reference Dimensions
5.08mm
.200 in.

.51mm
.020 in.

Page 96

XL TwinPower Stock Belt Widths
Belt Width
Code

Belt Width
(in)

025
037

0.250
0.375

3.05mm
.120 in.

R

The Gates Rubber Company

PowerGrip Twin Power Belts — continued
3/8″ Pitch (0.375″) Pitch L PowerGrip TwinPower Timing Stock Belt Lengths
Part No.

Pitch Length
(in)

No. of Teeth

Part No.

Pitch Length
(in)

No. of Teeth

TP150L
TP165L
TP187L
TP195L
TP210L

15.00
16.50
18.75
19.50
21.00

40
44
50
52
56

TP345L
TP367L
TP390L
TP420L
TP450L

34.50
36.75
39.00
42.00
45.00

92
98
104
112
120

TP225L
TP240L
TP255L
TP270L
TP285L

22.50
24.00
25.50
27.00
28.50

60
64
68
72
76

TP480L
TP510L
TP540L
TP600L
TP660L

48.00
51.00
54.00
60.00
66.00

128
136
144
160
176

TP300L
TP322L

30.00
32.25

80
86

TP817L

81.75

218

L PowerGrip Twin Power — Reference Dimensions
9.53mm
.375 in.

L TwinPower Stock Belt Widths

.76mm
.030 in.

Belt Width
Code

Belt Width
(in)

050
075
100

0.500
0.750
1.000

4.57mm
.180 in.

1/2″ (0.500″) Pitch H PowerGrip TwinPower Timing Stock Belt Lengths
Part No.

Pitch Length
(in)

No. of Teeth

Pitch Length
(in)

TP240H
TP270H
TP300H
TP330H
TP350H

24.00
27.00
30.00
33.00
35.00

48
54
60
66
70

No. of Teeth

TP600H
TP630H
TP660H
TP700H
TP750H

60.00
63.00
66.00
70.00
75.00

120
126
132
140
150

TP360H
TP390H
TP400H
TP420H
TP450H

36.00
39.00
40.00
42.00
45.00

72
78
80
84
90

TP800H
TP850H
TP900H
TP1000H
TP1100H

80.00
85.00
90.00
100.00
110.00

160
170
180
200
220

TP480H
TP510H
TP540H
TP570H

48.00
51.00
54.00
57.00

96
102
108
114

TP1250H
TP1400H
TP1700H

125.00
140.00
170.00

250
280
340

Part No.

H PowerGrip Twin Power — Reference Dimensions
12.70mm
.500 in.

H TwinPower Stock Belt Widths

1.37mm
.054 in.

Belt Width
Code

Belt Width
(in)

075
100
150
200
300

0.750
1.000
1.500
2.000
3.000

5.94mm
.234 in.

R

The Driving Force in Power Transmission.

Page 97

®

®

PowerGrip Twin Power Belt Drive Selection Procedure
To select a Gates PowerGrip Twin Power Belt drive,
you need to know only five facts:
1. DriveN horsepower requirements.
2. RPM of the driveR shaft.

2. Read down the speed ratio column and locate the
speed ratio nearest the requirements. Select a driveN
sprocket using a common size driveN sprocket which
yields the speeds nearest the requirements.
C. Required belt lengths are most easily determined by
measuring directly from a drawing of the drive layout. For
computer aided assistance in determining the correct belt
length, contact Gates Product Application Engineering.

3. RPM of the driveN shafts.
4. Approximate geometry for the drive.
5. Hours per day operation.

Step 1 Determine Design Horsepower
Design Horsepower = (Service Factor) x
(Horsepower Requirement)
A. To calculate the design horsepower, it is necessary to
determine the service factor for each type of driveN unit.
Using the Service Factor Chart on Page 15, determine the
type of driveR machine.
B. Using this chart, determine the service factor for each
driveN machine, based on the type of driveN machine and
the type of service. Add any additional service factors
required. Drives with multiple function driveN machines
must have an appropriate service factor applied to each
type of driveN machine.
C. Multiply the horsepower requirement of the drive by the
service factor selected. This yields the design horsepower
for the drive.
D. Add up the drlveN loads. On multiple function driveN
machines, add up the design horsepower for each driveN
unit to determine the total horsepower for the drive.

Step 2 Select Belt Pitch
Locate the design horsepower along the bottom of the Belt
Pitch Selection Guide on Page 11. Read up from the RPM of
the smaller sprocket (faster shaft). The belt pitch indicated in
the area surrounding the point of intersection is the one that
should be used. If the point of intersection falls outside any
specific area, contact your local Gates field representative. If
the point is near one of the lines, a good drive can be designed with the belt pitch on either side of the line. Design
drives using both belt pitches and select the most economical
drive consistent with the other requirements.

Step 3 Select Sprockets and Determine Belt
Length
A typical Twin Power Belt application will have three or more
sprockets; although in some drives, one of the driveN sprockets may be unloaded and act only as an idler. It may be possible to use the Drive Selection Table as an aid to determine
the required sprockets.
A. For drives with standard motor speeds, refer to the
appropriate motor speed column. Read down the column
and locate the driveN machine speed nearest the
requirements for each driveN sprocket using a common
size motor sprocket.

Step 4 Calculate Horsepower Rating
A. For 8mm and 14mm pitch PowerGrip GT2 Twin Power Belts:
1. Determine Base HP Rating: Refer to the Belt Width Selection tables on page 46 for 20mm wide, 8mm pitch
belts, and page 49 for 40mm wide, 14mm pitch belts. The
tables present Horsepower Rating values for the narrowest, single sided belt width for each belt pitch. Read down
the first column to the speed of the faster shaft, then
across to the column headed by the smallest sprocket in
the drive. The horsepower rating value shown is the Base
Horsepower Rating.
2. Calculate Modified Twin Power HP Rating:
a. For 20mm wide, 8mm pitch PowerGrip GT2 Twin
Power belts, the Modified Twin Power Base Horsepower Rating is calculated by performing the calculation shown below.
20mm wide, 8mm pitch Twin Power:
Modified Twin Power Horsepower Rating =
(Table HP Rating) - (d)(RPM)(TPf)
b. For 40mm wide, 14mm pitch PowerGrip GT2 Twin
Power belts, the Modified Twin Power Base Horsepower Rating is calculated by performing the simple
calculation shown below.
40mm wide, 14mm pitch Twin Power:
Modified Twin Power Horsepower Rating =
(Table HP Rating) - (d)(RPM)(TPf)
where d = pitch diameter of small sprocket, in.
RPM = RPM of small sprocket
TPf = Twin Power factor, based on belt pitch
and width, selected from table below
Pitch

Belt Width (mm)

TPf

8M PowerGrip GT2 Twin Power

20

.000799

14M PowerGrip GT2 Twin Power

40

.00228

3. Calculate Final PowerGrip GT2 Twin Power HP Rating:
To calculate the Final PowerGrip GT2 Twin Power Horsepower Rating for wider belt widths, multiply the Modified
Twin Power Horsepower Rating by the appropriate Width
Correction Factor shown below.
Pitch

8M PowerGrip GT2 Twin Power

B. For all other speeds:
1. Find the speed ratio by dividing the RPM of the faster
shaft by the RPM of the slower shaft for each driveN
sprocket in the drive.

Page 98

R

14M PowerGrip GT2 Twin Power

The Gates Rubber Company

Belt Width
(mm)

Width Correction
Factor

20

1.00

30

1.57

50

2.73

85

4.75

40

1.00

55

1.50

85

2.50

115

3.50

170

5.32

PowerGrip® Twin Power® Belt Drive Selection Procedure
B. PowerGrip Timing Twin Power Belts: Belt Width Selection
tables on pages 75 through 84 show the Horsepower
Ratings for each stock belt width. Each table represents
one belt width for a specific pitch belt. Read down the first
column to the speed of the faster shaft, then across to the
column headed by the small sprocket rotating at this speed.
This value is the Horsepower Rating.

Step 5 Select Belt Width
A. Locate the critical sprocket in the drive. This sprocket may
be either the smaller diameter sprocket or a larger diameter
sprocket with less than six teeth in mesh, depending on the
loads transmitted by each sprocket
1. Determine the number of teeth in mesh using the formula
below:
Number of
Teeth in
Angle of Sprocket Contact
× Sprocket
=
360 °
Mesh
Teeth

2. Select the appropriate teeth in mesh factor (Ktm) from
Page 135.
3. Correct the horsepower rating by multiplying the teeth in
mesh factor (Ktm) by the horsepower rating from Step 4.

R

4. Repeat this procedure for each sprocket to locate the critical sprocket in the drive. Select the proper belt width on
the basis of the critical sprocket parameters.

Step 6 Installation and Takeup
Because of its high resistance to elongation, there is no need
to retension PowerGrip Twin Power Belt drives. However,
some adjustments must be provided when installing timing
belt drives, as with nearly all power transmission methods,
because of manufacturing tolerances, wear of pressure surfaces and tensioning requirements. Center distance adjustment values are shown in the Center Distance Allowance
Table on Page 141.

Step 7 Check and Specify Stock Drive
Components
A. Check the sprockets selected against the design
requirements using the dimensions given in the Sprocket
Specifications Tables on Pages 100 through 111.
B. Using the Sprocket Specifications Tables, determine the
bushing size to use with each sprocket. Check the bore
range against the design requirements.
C. Specify all stock components using proper designation for
the belt, sprockets and bushings.

The Driving Force in Power Transmission.

Page 99

®

®

Gates PowerGrip GT 2 Sprocket Specifications
For 5mm, 8mm, and 14mm PowerGrip GT2 Belts
Type A

Type C

Type A

F

F

F

CL

E

CL

F-CL

CL

M

F-CL

F-CL

O.D.
E

D

O.D.

M

D

D

E

A

A

M

B

A

C
C

Type AF
Type CF

C

Type D

Type 6

F
E

M

CL

F

F-CL

CL
E

F-CL

D

M

D
A

B

O.D.

O.D.

B

A

C
C

Type DF

Page 100

Type 6F

R

The Gates Rubber Company

O.D.

5mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Dimensions (in)
Bore Sizes

The Driving Force in Power Transmission.

Sprocket
Number

Number
of
Teeth

Pitch

P18-5MGT-15 PB
P19-5MGT-15 PB
P20-5MGT-15 PB
P21-5MGT-15 PB
P22-5MGT-15 PB
P23-5MGT-15 PB
P24-5MGT-15 PB
P25-5MGT-15 PB
P26-5MGT-15 PB
P28-5MGT-15 PB
P30-5MGT-15 PB
P32-5MGT-15 PB
P34-5MGT-15 PB
P36-5MGT-15
P36-5MGT-15 PB
P38-5MGT-15
P38-5MGT-15 PB
P40-5MGT-15
P40-5MGT-15 PB
P44-5MGT-15
P45-5MGT-15 PB
P48-5MGT-15
P50-5MGT-15 PB
P52-5MGT-15
P56-5MGT-15
P60-5MGT-15
P64-5MGT-15
P68-5MGT-15
P72-5MGT-15
P80-5MGT-15
P90-5MGT-15
P112-5MGT-15

18
19
20
21
22
23
24
25
26
28
30
32
34
36
36
38
38
40
40
44
45
48
50
52
56
60
64
68
72
80
90
112

1.128
1.191
1.253
1.316
1.379
1.441
1.504
1.566
1.629
1.754
1.880
2.005
2.130
2.256
2.256
2.381
2.381
2.506
2.506
2.757
2.820
3.008
3.133
3.258
3.509
3.760
4.010
4.261
4.511
5.013
5.639
7.018

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

1.083
1.146
1.208
1.271
1.334
1.396
1.459
1.521
1.584
1.709
1.835
1.960
2.085
2.211
2.211
2.336
2.336
2.461
2.461
2.712
2.775
2.963
3.088
3.213
3.464
3.715
3.965
4.216
4.466
4.968
5.594
6.973

1.385
1.420
1.510
1.530
1.530
1.660
1.780
1.780
1.900
2.020
2.130
2.130
2.375
2.380
2.380
2.610
2.610
2.730
2.730
3.090
3.090
3.330
3.330
2.570
3.810
4.040
4.140
4.520
4.670
—
—
—

6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
AF-1
6F-1
AF-1
6F-1
AF-1
6F-1
AF-1
6F-1
BF-1
6F-1
BF-1
BF-1
BF-1
BF-1
BF-1
BF-1
B-1
B-1
B-1

—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—

0.68
0.88
0.90
1.09
1.09
1.15
1.18
1.18
1.21
1.37
1.53
1.55
1.69
—
1.69
—
1.96
—
2.09
—
2.34
2.69
2.65
2.88
3.07
3.25
3.25
3.25
3.25
3.25
3.25
4.38

0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
0.69
—
—
—

1.25
1.25
1.25
1.25
1.28
1.28
1.28
1.28
1.28
1.34
1.34
1.34
1.34
0.88
1.34
0.88
1.34
0.88
1.38
0.88
1.38
1.00
1.38
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.25

0.36
0.36
0.36
0.36
0.39
0.39
0.39
0.39
0.39
0.45
0.45
0.45
0.45
0
0.45
0
0.45
0
0.49
0
0.49
0
0.49
0
0
0
0
0
0
0
0
0

0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.88
0.89
0.88
0.89
0.88
0.89
0.88
0.89
0.88
0.89
0.88
0.88
0.88
0.88
0.88
0.88
0.89
0.89
0.89

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.13
0
0.13
0.13
0.13
0.13
0.13
0.13
0.11
0.11
0.36

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron
Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45

MPB
MPB
MPB
MPB
MPB
MPB
MPB
MPB
MPB
MPB
MPB
MPB
MPB
1108
MPB
1108
MPB
1108
MPB
1108
MPB
1210
MPB
1210
1610
1610
1610
1610
1610
1610
1610
2012

0.250
0.250
0.250
0.250
0.250
0.375
0.375
0.375
0.375
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500

0.375
0.437
0.500
0.690
0.655
0.625
0.625
0.625
0.687
0.750
0.937
0.937
1.000
1.125
1.000
1.125
1.250
1.125
1.312
1.125
1.500
1.250
1.750
1.250
1.688
1.688
1.688
1.688
1.688
1.688
1.688
2.125

0.3
0.3
0.3
0.4
0.4
0.5
0.5
0.6
0.6
0.7
0.8
0.9
1.1
0.5
1.1
0.6
1.6
0.7
1.6
0.9
2.1
0.0
2.6
1.3
1.4
1.7
2.1
2.4
2.8
3.7
4.9
8.3

0.0003
0.0003
0.0004
0.0005
0.0006
0.0008
0.0009
0.001
0.001
0.001
0.002
0.002
0.003
0.002
0.004
0.003
0.005
0.004
0.006
0.007
0.010
0.010
0.015
0.015
0.019
0.026
0.035
0.045
0.058
0.090
0.147
0.374

S
S
S
S
S
S
S
S
S
S
S
S
S
SS
S
SS
S
SS
S
SS
S
SS
S
SS
SS
SS
SS
SS
SS
SS
SS
SS

D - Ductile Iron

Page 101

Details shown which do not affect drive function may be changed without notification.

Page 102

5mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Sprocket
Number

Number
of
Teeth

Dimensions (in)
Bore Sizes

Pitch

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

The Gates Rubber Company

P18-5MGT-25 PB
P19-5MGT-25 PB
P20-5MGT-25 PB
P21-5MGT-25 PB
P22-5MGT-25 PB

18
19
20
21
22

1.128
1.191
1.253
1.316
1.379

1.083
1.146
1.208
1.271
1.334

1.385
1.420
1.510
1.530
1.530

6F-1
6F-1
6F-1
6F-1
6F-1

—
—
—
—
—

0.68
0.88
0.90
1.09
1.09

1.08
1.08
1.08
1.08
1.08

1.65
1.65
1.65
1.65
1.68

0.37
0.37
0.37
0.37
0.40

1.28
1.28
1.28
1.28
1.28

0
0
0
0
0

0.64
0.64
0.64
0.64
0.64

MPB
MPB
MPB
MPB
MPB

0.250
0.250
0.250
0.250
0.250

0.375
0.437
0.500
0.690
0.655

0.4
0.4
0.5
0.5
0.6

0.0003
0.0004
0.0005
0.0006
0.0007

S
S
S
S
S

P23-5MGT-25 PB
P24-5MGT-25 PB
P25-5MGT-25 PB
P26-5MGT-25 PB
P28-5MGT-25 PB
P30-5MGT-25 PB
P32-5MGT-25 PB
P34-5MGT-25 PB
P36-5MGT-25
P36-5MGT-25 PB
P38-5MGT-25
P38-5MGT-25 PB
P40-5MGT-25
P40-5MGT-25 PB
P44-5MGT-25
P45-5MGT-25 PB
P48-5MGT-25
P50-5MGT-25 PB
P52-5MGT-25
P56-5MGT-25
P60-5MGT-25
P64-5MGT-25
P68-5MGT-25
P72-5MGT-25
P80-5MGT-25
P90-5MGT-25
P112-5MGT-25

23
24
25
26
28
30
32
34
36
36
38
38
40
40
44
45
48
50
52
56
60
64
68
72
80
90
112

1.441
1.504
1.566
1.629
1.754
1.880
2.005
2.130
2.256
2.256
2.381
2.381
2.506
2.506
2.757
2.820
3.008
3.133
3.258
3.509
3.760
4.010
4.261
4.511
5.013
5.639
7.018

1.396
1.459
1.521
1.584
1.709
1.835
1.960
2.085
2.211
2.211
2.336
2.336
2.461
2.461
2.712
2.775
2.963
3.088
3.213
3.464
3.715
3.965
4.216
4.466
4.968
5.594
6.973

1.660
1.780
1.780
1.900
2.020
2.130
2.125
2.375
2.375
2.380
2.613
2.610
2.733
2.730
3.090
3.090
3.328
3.330
3.566
3.805
4.044
4.170
4.520
4.670
—
—
—

6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
6F-1
AF-1
6F-1
AF-1
6F-1
AF-1
6F-1
AF-1
6F-1
AF-1
6F-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
A-1
A-1
A-1

—
—
—
—
—
—
—
—
1.55
—
1.80
—
1.90
—
2.20
—
2.36
—
2.62
2.75
2.90
3.37
2.57
2.57
2.57
2.57
2.57

1.15
1.18
1.18
1.21
1.37
1.53
1.55
1.69
—
1.69
—
1.96
—
2.09
—
2.34
—
2.65
—
—
—
—
—
—
—
—
—

1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08
1.08

1.68
1.68
1.68
1.68
1.73
1.73
1.73
1.73
0.88
1.73
0.88
1.73
0.88
1.78
0.88
1.78
1.00
1.78
1.00
1.00
1.00
1.00
1.25
1.25
1.25
1.25
1.25

0.40
0.40
0.40
0.40
0.45
0.45
0.45
0.45
0
0.45
0
0.45
0
0.50
0
0.50
0
0.50
0
0
0
0
0.03
0.03
0.03
0.03
0.03

1.28
1.28
1.28
1.28
1.28
1.28
1.28
1.28
1.29
1.28
1.29
1.28
1.29
1.28
1.29
1.28
1.28
1.28
1.28
1.28
1.28
1.28
1.28
1.28
1.28
1.28
1.28

0
0
0
0
0
0
0
0
0.41
0
0.41
0
0.41
0
0.41
0
0.28
0
0.28
0.28
0.28
0.28
0
0
0
0
0

0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64

MPB
MPB
MPB
MPB
MPB
MPB
MPB
MPB
1108
MPB
1108
MPB
1108
MPB
1108
MPB
1210
MPB
1210
1610
1610
1610
2012
2012
2012
2012
2012

0.375
0.375
0.375
0.375
0.375
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500

0.625
0.625
0.625
0.687
0.750
0.937
.937
1.000
1.125
1.000
1.125
1.250
1.125
1.312
1.125
1.500
1.250
1.750
1.250
1.688
1.688
1.688
2.125
2.125
2.125
2.125
2.125

0.7
0.8
0.8
0.8
1.0
1.1
1.2
1.4
0.7
1.6
0.7
1.9
0.8
2.2
1.1
2.7
1.2
3.4
1.6
1.6
2.1
2.4
2.7
3.3
4.5
6.2
10.7

0.0009
0.001
0.001
0.001
0.002
0.002
0.003
0.004
0.003
0.005
0.004
0.007
0.006
0.009
0.009
0.014
0.012
0.022
0.018
0.024
0.033
0.042
0.057
0.075
0.121
0.203
0.510

S
S
S
S
S
S
S
S
SS
S
SS
S
SS
S
SS
S
SS
S
SS
SS
SS
G
G
G
G
G
G

Material Spec :
S - Steel
SS - Sintered Steel
G - Grey Iron
Design Type Suffix:
1 - Solid
2 - Web
3 - Arms

D - Ductile Iron

Details shown which do not affect drive function may be changed without notification.

8mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Sprocket
Number

The Driving Force in Power Transmission.

P22-8MGT-20
P24-8MGT-20
P26-8MGT-20
P28-8MGT-20
P30-8MGT-20
P32-8MGT-20
P34-8MGT-20
P36-8MGT-20
P38-8MGT-20
P40-8MGT-20
P44-8MGT-20
P48-8MGT-20
P56-8MGT-20
P64-8MGT-20
P72-8MGT-20
P80-8MGT-20
P90-8MGT-20

Number
of
Teeth
22
24
26
28
30
32
34
36
38
40
44
48
56
64
72
80
90

Dimensions (in)
Bore Sizes

Pitch

O.D

Flange
Ref.

2.206
2.406
2.607
2.807
3.008
3.208
3.409
3.609
3.810
4.010
4.411
4.812
5.614
6.416
7.218
8.020
9.023

2.152
2.352
2.553
2.753
2.954
3.154
3.355
3.555
3.756
3.956
4.357
4.758
5.560
6.362
7.164
7.966
8.969

2.559
2.756
2.953
3.150
3.346
3.543
3.819
3.937
4.134
4.331
4.764
5.157
5.945
6.772
7.598
8.386
—

Design
Type

A

B

C

D

E

F

M

AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
BF-1
BF-1
BF-1
BF-1
BF-1
BF-1
C-2

1.55
1.55
1.55
1.10
1.20
1.91
1.60
1.60
1.60
1.60
—
—
—
—
—
—
7.90

—
—
—
—
—
—
—
—
—
—
3.88
4.25
4.38
4.38
4.38
4.88
4.88

0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
—

0.88
0.88
0.88
0.88
1.00
1.00
1.00
1.00
1.00
1.00
1.25
1.25
1.25
1.25
1.25
1.75
1.75

0
0
0
0.26
0.13
0
0.13
0.13
0.13
0.13
0
0
0
0
0
0
0.31

1.14
1.14
1.14
1.14
1.13
1.13
1.13
1.13
1.13
1.13
1.12
1.12
1.12
1.12
1.12
1.12
1.13

0.26
0.26
0.26
0
0
0.13
0
0
0
0
0.13
0.13
0.13
0.13
0.13
0.63
0.31

Material Spec :
S - Steel
SS - Sintered Steel
G - Grey Iron
Design Type Suffix:
1 - Solid
2 - Web
3 - Arms

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.59

1108
1108
1108
1108
1210
1210
1610
1610
1610
1610
2012
2012
2012
2012
2012
2517
2517

0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500

1.125
1.125
1.125
1.125
1.250
1.250
1.688
1.688
1.688
1.688
2.125
2.125
2.125
2.125
2.125
2.688
2.688

0.5
0.7
0.9
1.2
1.2
1.4
1.4
1.7
2.0
2.4
2.7
3.7
5.6
7.7
10.2
13.1
12.5

0.002
0.004
0.006
0.009
0.011
0.015
0.018
0.024
0.032
0.040
0.058
0.091
0.176
0.307
0.499
0.772
0.903

D
D
D
D
D
D
D
D
G
G
G
G
G
G
G
G
G

D - Ductile Iron

Page 103

Details shown which do not affect drive function may be changed without notification.

Page 104

8mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Sprocket
Number

Number
of
Teeth

Dimensions (in)
Bore Sizes

Pitch

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

The Gates Rubber Company

P22-8MGT-30
P24-8MGT-30
P26-8MGT-30
P28-8MGT-30
P30-8MGT-30

22
24
26
28
30

2.206
2.406
2.607
2.807
3.008

2.152
2.352
2.553
2.753
2.954

2.559
2.756
2.953
3.150
3.346

AF-1
AF-1
AF-1
AF-1
AF-1

1.55
1.55
1.75
1.55
1.91

—
—
—
—
—

1.22
1.22
1.22
1.22
1.22

0.88
0.88
0.88
0.88
1.00

0
0
0
0
0

1.50
1.50
1.50
1.50
1.50

0.63
0.63
0.63
0.63
0.50

0.75
0.75
0.75
0.75
0.75

1108
1108
1108
1108
1210

0.500
0.500
0.500
0.500
0.500

1.125
1.125
1.125
1.125
1.250

0.6
0.9
1.1
1.5
1.5

0.003
0.005
0.008
0.012
0.015

D
D
D
G
D

P32-8MGT-30
P34-8MGT-30
P36-8MGT-30
P38-8MGT-30
P40-8MGT-30
P44-8MGT-30
P48-8MGT-30
P56-8MGT-30
P64-8MGT-30
P72-8MGT-30
P80-8MGT-30
P90-8MGT-30
P112-8MGT-30
P144-8MGT-30

32
34
36
38
40
44
48
56
64
72
80
90
112
144

3.208
3.409
3.609
3.810
4.010
4.411
4.812
5.614
6.416
7.218
8.020
9.023
11.229
14.437

3.154
3.355
3.555
3.756
3.956
4.357
4.758
5.560
6.362
7.164
7.966
8.969
11.175
14.383

3.543
3.819
3.937
4.134
4.331
4.764
5.157
5.945
6.772
7.598
8.386
—
—
—

AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
BF-1
BF-1
BF-1
C-2
C-2
C-2

2.19
2.29
2.29
2.53
3.00
3.50
3.80
4.60
—
—
—
7.90
10.00
13.20

—
—
—
—
—
—
—
—
4.88
4.88
4.88
4.88
4.88
4.88

1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
—
—
—

1.00
1.00
1.00
1.00
1.25
1.25
1.25
1.25
1.75
1.75
1.75
1.75
1.75
1.88

0
0
0
0
0
0
0
0
0
0
0
0.13
0.13
0.38

1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50

0.50
0.50
0.50
0.50
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.12
0.12
0

0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.51
0.51
0.76

1210
1610
1610
1610
2012
2012
2012
2012
2517
2517
2517
2517
2517
2517

0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500

1.250
1.688
1.688
1.688
2.125
2.125
2.125
2.125
2.688
2.688
2.688
2.688
2.688
2.688

1.7
1.8
2.2
2.5
2.3
3.2
4.2
6.3
9.5
12.8
16.5
21.6
25.4
31.0

0.019
0.024
0.032
0.040
0.045
0.071
0.106
0.208
0.404
0.659
1.019
1.65
3.42
6.014

D
D
D
D
G
G
G
G
G
G
G
G
G
G

Material Spec :
S - Steel
SS - Sintered Steel
G - Grey Iron
Design Type Suffix:
1 - Solid
2 - Web
3 - Arms

D - Ductile Iron

Details shown which do not affect drive function may be changed without notification.

8mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Dimensions (in)
Bore Sizes

The Driving Force in Power Transmission.

Sprocket
Number

Number
of
Teeth

Pitch

P28-8MGT-50 PB
P30-8MGT-50
P32-8MGT-50
P34-8MGT-50
P36-8MGT-50
P38-8MGT-50
P40-8MGT-50
P44-8MGT-50
P48-8MGT-50
P56-8MGT-50
P64-8MGT-50
P72-8MGT-50
P80-8MGT-50
P90-8MGT-50
P112-8MGT-50
P144-8MGT-50
P192-8MGT-50

28
30
32
34
36
38
40
44
48
56
64
72
80
90
112
144
192

2.807
3.008
3.208
3.409
3.609
3.810
4.010
4.411
4.812
5.614
6.416
7.218
8.020
9.023
11.229
14.437
19.249

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

2.753
2.954
3.154
3.355
3.555
3.756
3.956
4.357
4.758
5.560
6.362
7.164
7.966
8.969
11.175
14.383
19.195

3.207
3.346
3.543
3.819
3.937
4.134
4.331
4.764
5.157
5.945
6.772
7.598
8.386
—
—
—
—

6F-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
A-1
A-2
A-3
A-3

1.80
2.00
2.36
2.57
2.77
2.97
2.97
3.50
3.80
4.60
5.40
6.20
6.90
7.90
10.00
13.49
18.00

2.34
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—

2.10
2.10
2.10
2.10
2.10
2.10
2.10
2.10
2.10
2.10
2.10
2.10
2.10
—
—
—
—

2.50
1.00
1.00
1.00
1.00
1.00
1.25
1.25
1.25
1.75
1.75
1.75
1.75
2.00
2.00
2.00
2.00

0.62
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.38
2.39
2.38

0.50
1.38
1.38
1.38
1.38
1.38
1.13
1.13
1.13
0.63
0.63
0.63
0.63
0.38
0.38
0.39
0.38

Material Spec :
S - Steel
SS - Sintered Steel
G - Grey Iron
Design Type Suffix:
1 - Solid
2 - Web
3 - Arms

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19
1.19

MPB
1210
1210
1610
1610
1610
2012
2012
2012
2517
2517
2517
2517
3020
3020
3020
3020

0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.875
0.875
0.875
0.875

1.500
1.250
1.250
1.688
1.688
1.688
2.125
2.125
2.125
2.688
2.688
2.688
2.688
3.250
3.250
3.250
3.250

3.7
2.2
2.3
4.0
2.7
3.1
3.5
4.3
5.5
8.1
11.7
15.7
20.3
26.9
29.8
49.0
108.0

0.024
0.023
0.028
0.045
0.043
0.054
0.068
0.099
0.149
0.295
0.527
0.862
1.343
2.277
3.746
8.988
32.21

D
D
D
D
G
G
D
G
G
G
G
G
G
G
G
D
G

D - Ductile Iron

Page 105

Details shown which do not affect drive function may be changed without notification.

Page 106

8mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Sprocket
Number

Number
of
Teeth

Dimensions (in)
Bore Sizes

Pitch

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

The Gates Rubber Company

P34-8MGT-85
P36-8MGT-85
P38-8MGT-85
P40-8MGT-85
P44-8MGT-85

34
36
38
40
44

3.409
3.609
3.810
4.010
4.411

3.355
3.555
3.756
3.956
4.357

3.819
4.009
4.210
4.410
4.764

AF-1
AF-1
AF-1
AF-1
AF-1

2.52
2.72
3.00
3.12
3.50

—
—
—
—
—

3.47
3.47
3.47
3.47
3.47

1.50
1.50
1.00
1.25
1.25

0.75
0.75
0.63
1.25
1.25

3.75
3.75
2.75
3.75
3.75

1.50
1.50
1.12
1.25
1.25

1.88
1.88
2.50
1.88
1.88

1615
1615
1610
2012
2012

0.500
0.500
0.500
0.500
0.500

1.688
1.688
1.688
2.125
2.125

3.9
4.4
4.3
4.7
5.9

0.054
0.069
0.077
0.097
0.144

G
G
G
D
G

P48-8MGT-85
P56-8MGT-85
P64-8MGT-85
P72-8MGT-85
P80-8MGT-85
P90-8MGT-85
P112-8MGT-85
P144-8MGT-85
P192-8MGT-85

48
56
64
72
80
90
112
144
192

4.812
5.614
6.416
7.218
8.020
9.023
11.229
14.437
19.249

4.758
5.560
6.362
7.164
7.966
8.969
11.175
14.383
19.195

5.212
6.014
6.716
7.500
8.420
—
—
—
—

AF-1
AF-1
AF-1
AF-1
AF-1
A-1
D-1
D-1
D-1

3.80
4.60
5.40
6.20
7.20
7.90
10.00
13.44
18.00

—
—
—
—
—
—
6.25
6.56
7.00

3.47
3.47
3.47
3.47
3.47
—
—
—
—

1.25
1.75
1.75
2.00
2.00
2.00
2.00
3.50
3.50

1.25
0.81
0.59
0.88
0.50
0.50
0.50
0
0.13

3.75
3.75
3.75
3.76
3.75
3.75
3.75
3.75
3.76

1.25
1.19
1.41
0.88
1.25
1.25
1.25
0.25
0.13

1.88
1.88
1.88
1.88
1.88
1.88
1.44
0.94
1.07

2012
2517
2517
3020
3020
3020
3020
3535
3535

0.500
0.500
0.500
0.875
0.875
0.875
0.875
1.188
1.188

2.125
2.688
2.688
3.250
3.250
3.250
3.250
3.938
3.938

7.6
10.6
14.5
18.0
22.4
31.5
33.2
54.1
125.0

0.214
0.405
0.698
1.121
1.642
2.846
4.621
11.06
39.63

G
G
G
G
G
G
G
G
G

Material Spec :
S - Steel
SS - Sintered Steel
G - Grey Iron
Design Type Suffix:
1 - Solid
2 - Web
3 - Arms

D - Ductile Iron

Details shown which do not affect drive function may be changed without notification.

14mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Sprocket
Number

The Driving Force in Power Transmission.

P28-14MGT-40
P29-14MGT-40
P30-14MGT-40
P32-14MGT-40
P34-14MGT-40
P36-14MGT-40
P38-14MGT-40
P40-14MGT-40
P44-14MGT-40
P48-14MGT-40
P52-14MGT-40
P56-14MGT-40
P60-14MGT-40
P64-14MGT-40
P68-14MGT-40
P72-14MGT-40
P80-14MGT-40
P90-14MGT-40
P112-14MGT-40
P144-14MGT-40
P168-14MGT-40
P192-14MGT-40

Dimensions (in)
Bore Sizes

Number
of
Teeth

Pitch

28
29
30
32
34
36
38
40
44
48
52
56
60
64
68
72
80
90
112
144
168
192

4.912
5.088
5.263
5.614
5.965
6.316
6.667
7.018
7.720
8.421
9.123
9.825
10.527
11.229
11.930
12.632
14.036
15.790
19.650
25.264
29.475
33.686

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

4.802
4.978
5.153
5.504
5.855
6.206
6.557
6.908
7.610
8.311
9.013
9.715
10.417
11.119
11.820
12.522
13.926
15.680
19.540
25.154
29.365
33.576

5.560
5.560
6.125
6.125
6.500
6.875
7.219
7.500
8.343
8.937
9.687
10.375
11.062
11.750
12.500
13.187
14.625
—
—
—
—
—

AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
DF-1
DF-1
DF-3
D-3
A-3
A-3
A-3
A-3

3.13
3.15
3.85
3.92
4.06
4.69
4.94
5.06
6.14
6.50
7.18
7.88
8.50
9.25
10.00
10.69
12.53
14.25
18.09
23.65
27.50
31.75

—
—
—
—
—
—
—
—
—
—
—
—
—
—
6.25
6.25
5.50
5.50
—
—
—
—

1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
1.81
—
—
—
—

1.25
1.25
1.25
1.25
1.25
1.75
1.75
1.75
1.75
1.75
1.75
1.75
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13
2.13

0.88
0.88
0.88
0.88
0.88
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13

Material Spec :
S - Steel
SS - Sintered Steel
G - Grey Iron
Design Type Suffix:
1 - Solid
2 - Web
3 - Arms

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

1.06
1.06
1.06
1.06
1.06
1.06
1.06
1.06
1.06
1.06
1.06
1.06
1.06
1.06
0.53
0.53
0.53
0.53
1.06
1.06
1.06
1.06

2012
2012
2012
2012
2012
2517
2517
2517
2517
2517
2517
2517
3020
3020
3020
3020
3020
3020
3020
3020
3020
3020

0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.875
0.875
0.875
0.875
0.875
0.875
0.875
0.875
0.875
0.875

2.125
2.125
2.125
2.125
2.125
2.688
2.688
2.688
2.688
2.688
2.688
2.688
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.250

5.9
6.6
6.5
8.0
9.4
10.5
12.2
14.2
17.6
22.0
26.5
31.3
28.9
31.0
31.3
33.9
33.7
39.7
100.5
154.1
133.2
167.6

0.153
0.181
0.193
0.265
0.349
0.444
0.565
0.713
1.046
1.527
2.126
2.878
3.177
3.872
4.446
5.41
7.474
9.396
29.66
75.16
113.3
189.8

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G

D - Ductile Iron

Page 107

Details shown which do not affect drive function may be changed without notification.

Page 108

14mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Sprocket
Number

Number
of
Teeth

Dimensions (in)
Bore Sizes

Pitch

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

The Gates Rubber Company

P28-14MGT-55
P29-14MGT-55
P30-14MGT-55
P32-14MGT-55
P34-14MGT-55

28
29
30
32
34

4.912
5.088
5.263
5.614
5.965

4.802
4.978
5.153
5.504
5.855

5.560
5.560
6.125
6.125
6.500

AF-1
AF-1
AF-1
AF-1
AF-1

3.13
3.13
3.80
3.92
4.06

—
—
—
—
—

2.43
2.43
2.43
2.43
2.43

1.25
1.25
1.75
1.75
1.75

0
0
0
0
0

2.75
2.75
2.75
2.75
2.75

1.50
1.50
1.00
1.00
1.00

1.38
1.38
1.38
1.38
1.38

2012
2012
2517
2517
2517

0.500
0.500
0.500
0.500
0.500

2.125
2.125
2.688
2.688
2.688

7.4
8.4
7.4
9.3
11.2

0.194
0.231
0.237
0.327
0.437

G
G
G
G
G

P36-14MGT-55
P38-14MGT-55
P40-14MGT-55
P44-14MGT-55
P48-14MGT-55
P52-14MGT-55
P56-14MGT-55
P60-14MGT-55
P64-14MGT-55
P68-14MGT-55
P72-14MGT-55
P80-14MGT-55
P90-14MGT-55
P112-14MGT-55
P144-14MGT-55
P168-14MGT-55
P192-14MGT-55

36
38
40
44
48
52
56
60
64
68
72
80
90
112
144
168
192

6.316
6.669
7.018
7.720
8.421
9.123
9.825
10.527
11.229
11.930
12.632
14.036
15.790
19.650
25.264
29.475
33.686

6.206
6.557
6.908
7.610
8.311
9.013
9.715
10.417
11.119
11.820
12.522
13.926
15.680
19.540
25.154
29.365
33.576

6.875
7.219
7.500
8.343
8.937
9.687
10.375
11.062
11.750
12.500
13.187
14.625
—
—
—
—
—

AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
DF-1
DF-1
DF-3
D-3
D-2
D-3
D-3
C-3

4.69
4.94
5.06
6.12
6.50
7.18
7.88
8.50
9.25
10.00
10.69
12.00
14.22
18.04
23.38
27.50
31.93

—
—
—
—
—
—
—
—
—
6.25
6.25
5.50
5.50
6.25
6.25
6.25
6.56

2.43
2.43
2.43
2.43
2.43
2.43
2.43
2.43
2.43
2.43
2.43
2.43
—
—
—
—
—

1.75
1.75
1.75
1.75
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
3.50

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.19
0

2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75
2.75

1.00
1.00
1.00
1.00
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.56
0.75

1.38
1.38
1.38
1.38
1.38
1.38
1.38
1.38
1.38
0.69
0.69
0.69
0.69
0.69
0.69
0.88
0.69

2517
2517
2517
2517
3020
3020
3020
3020
3020
3020
3020
3020
3020
3020
3020
3020
3535

0.500
0.500
0.500
0.500
0.875
0.875
0.875
0.875
0.875
0.875
0.875
0.875
0.875
0.875
0.875
0.875
1.188

2.688
2.688
2.688
2.688
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.250
3.938

12.4
14.4
16.7
19.9
24.4
29.6
35.3
41.6
47.9
40.2
45.1
41.6
45.0
116.7
98.0
145.5
432.3

0.54
0.686
0.871
1.234
1.84
2.573
3.489
4.647
6.012
5.909
7.387
9.021
12.36
36.86
65.38
150.2
404.3

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron
Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

D - Ductile Iron

Details shown which do not affect drive function may be changed without notification.

14mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Sprocket
Number

The Driving Force in Power Transmission.

P28-14MGT-85
P29-14MGT-85
P30-14MGT-85
P32-14MGT-85
P34-14MGT-85
P36-14MGT-85
P38-14MGT-85
P40-14MGT-85
P44-14MGT-85
P48-14MGT-85
P52-14MGT-85
P56-14MGT-85
P60-14MGT-85
P64-14MGT-85
P68-14MGT-85
P72-14MGT-85
P80-14MGT-85
P90-14MGT-85
P112-14MGT-85
P144-14MGT-85
P168-14MGT-85
P192-14MGT-85

Dimensions (in)
Bore Sizes

Number
of
Teeth

Pitch

28
29
30
32
34
36
38
40
44
48
52
56
60
64
68
72
80
90
112
144
168
192

4.912
5.088
5.263
5.614
5.965
6.316
6.669
7.018
7.720
8.421
9.123
9.825
10.527
11.229
11.930
12.632
14.036
15.790
19.650
25.264
29.475
33.686

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

4.802
4.978
5.153
5.504
5.855
6.206
6.557
6.908
7.610
8.311
9.013
9.715
10.417
11.119
11.820
12.522
13.926
15.680
19.540
25.154
29.365
33.576

5.560
5.560
6.125
6.125
6.500
6.875
7.219
7.500
8.343
8.937
9.687
10.375
11.062
11.750
12.500
13.187
14.625
—
—
—
—
—

AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
DF-1
AF-1
DF-2
D-2
D-3
D-3
D-3
D-3

3.13
3.13
3.78
3.92
4.06
4.69
4.94
5.06
6.12
6.50
7.18
7.88
8.50
9.25
10.00
10.69
12.13
14.15
17.97
23.40
27.70
31.87

—
—
—
—
—
—
—
—
—
—
—
—
—
—
7.00
—
7.00
7.00
6.56
7.63
7.63
7.63

3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
3.68
—
—
—
—
—

1.25
1.25
1.75
1.75
1.75
2.00
2.00
2.00
2.00
2.00
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
4.00
4.00
4.00

1.31
1.31
0.50
0.81
0.81
0.53
0.53
0.53
0.53
0.53
0
0
0
0
0
0
0
0
0
0
0
0

4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00

1.44
1.44
1.75
1.44
1.44
1.47
1.47
1.47
1.47
1.47
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0
0
0

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron
Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.00
1.00
2.00
1.00
1.00
1.00
1.00
1.00
1.00

2012
2012
2517
2517
2517
3020
3020
3020
3020
3020
3535
3535
3535
3535
3535
3535
3535
3535
3535
4040
4040
4040

0.500
0.500
0.500
0.500
0.500
0.875
0.875
0.875
0.875
0.875
1.188
1.188
1.188
1.188
1.188
1.188
1.188
1.188
1.188
1.438
1.438
1.438

2.125
2.125
2.688
2.688
2.688
3.250
3.250
3.250
3.250
3.250
3.938
3.938
3.938
3.938
3.938
3.938
3.938
3.938
3.938
4.438
4.438
4.438

10.5
11.9
10.2
12.7
15.3
14.4
17.0
20.3
23.6
30.6
36.6
52.4
62.8
73.6
63.3
97.4
62.9
71.5
131.2
137.4
192.2
448.0

0.278
0.332
0.332
0.459
0.614
0.694
0.897
1.161
1.615
2.432
3.356
5.300
7.128
9.334
9.169
15.19
13.04
18.14
44.18
92.1
194.5
444.6

G
G
G
G
G
D
G
G
G
G
G
G
G
G
G
G
G
G
D
G
G
G

D - Ductile Iron

Page 109

Details shown which do not affect drive function may be changed without notification.

Page 110

14mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Sprocket
Number
P28-14MGT-115 PB
P29-14MGT-115 PB
P30-14MGT-115
P32-14MGT-115
P34-14MGT-115

The Gates Rubber Company

P36-14MGT-115
P38-14MGT-115
P40-14MGT-115
P44-14MGT-115
P48-14MGT-115
P52-14MGT-115
P56-14MGT-115
P60-14MGT-115
P64-14MGT-115
P68-14MGT-115
P72-14MGT-115
P80-14MGT-115
P90-14MGT-115
P112-14MGT-115
P144-14MGT-115
P168-14MGT-115
P192-14MGT-115
P216-14MGT-115

Number
of
Teeth

Dimensions (in)
Bore Sizes

Pitch

O.D

Flange
Ref.

Design
Type

28
29
30
32
34

4.912
5.088
5.263
5.614
5.965

4.802
4.978
5.153
5.504
5.855

5.562
5.562
5.763
6.114
6.465

6F-1
6F-1
AF-1
AF-1
AF-1

36
38
40
44
48
52
56
60
64
68
72
80
90
112
144
168
192
216

6.316
6.669
7.018
7.720
8.421
9.123
9.825
10.527
11.229
11.930
12.632
14.036
15.790
19.650
25.264
29.475
33.686
37.896

6.206
6.557
6.908
7.610
8.311
9.013
9.715
10.417
11.119
11.820
12.522
13.926
15.680
19.540
25.154
29.365
33.576
37.786

6.816
7.167
7.518
8.395
8.941
9.687
10.355
11.067
11.750
12.500
13.066
14.620
—
—
—
—
—
—

AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-2
D-1
D-2
D-3
D-3
D-2
D-3

B

C

D

E

F

M

F-CL

Bushing
Size

3.13
3.13
3.70
3.94
4.06

3.69
3.69
—
—
—

4.93
4.93
4.93
4.93
4.93

5.00
5.00
1.75
1.75
1.75

1.20
1.20
1.75
1.75
1.75

5.30
5.30
5.25
5.25
5.25

1.50
1.50
1.75
1.75
1.75

2.67
2.67
2.63
2.63
2.63

MPB
MPB
2517
2517
2517

1.250
1.250
0.500
0.500
0.500

2.688
2.688
2.688
2.688
2.688

22.2
24.0
13.4
16.0
19.5

0.508
0.585
0.438
0.587
0.790

D
D
G
G
G

4.74
5.08
5.43
6.13
6.50
7.18
7.88
8.50
9.25
10.00
10.70
12.13
14.11
17.94
9.50
27.66
31.83
36.00

—
—
—
—
—
—
—
—
—
—
—
—
9.50
9.50
17.94
8.63
8.63
13.06

4.93
4.93
4.93
4.93
4.93
4.93
4.93
4.93
4.93
4.93
4.93
4.93
—
—
—
—
—
—

2.00
2.00
2.00
3.50
3.50
4.00
4.00
4.00
4.50
4.50
4.50
4.50
4.50
4.50
4.50
4.50
4.50
5.00

1.63
1.63
1.63
0.88
0.88
0.63
0.63
0.63
0.38
0.38
0.38
0.38
0.38
0
0.38
0.38
0.38
0

5.26
5.26
5.26
5.26
5.26
5.26
5.26
5.26
5.26
5.26
5.26
5.26
5.26
5.25
5.26
5.26
5.26
5.25

1.63
1.63
1.63
0.88
0.88
0.63
0.63
0.63
0.38
0.38
0.38
0.38
0.38
0.75
0.38
0.38
0.38
0.25

2.63
2.63
2.63
2.63
2.63
2.63
2.63
2.63
2.63
2.63
2.63
2.63
2.32
1.94
2.32
2.32
2.32
1.94

3020
3020
3020
3535
3535
4040
4040
4040
4545
4545
4545
4545
4545
4545
4545
4545
4545
6050

0.875
0.875
0.875
1.188
1.188
1.438
1.438
1.438
1.938
1.938
1.938
1.938
1.938
1.938
1.938
1.938
1.938
4.438

3.250
3.250
3.250
3.938
3.938
4.438
4.438
4.438
4.938
4.938
4.938
4.938
4.938
4.938
4.938
4.938
4.938
6.000

17.9
20.3
22.9
30.3
40.3
46.8
58.1
70.4
82.4
97.2
113.2
147.5
116.9
173.3
172.2
223.4
475.0
378.0

0.876
1.100
1.357
2.144
3.277
4.545
6.335
8.589
11.47
14.91
19.06
29.66
28.30
64.72
119.8
243.3
496.5
686.1

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G

A

Material Spec :
S - Steel
SS - Sintered Steel
G - Grey Iron
Design Type Suffix:
1 - Solid
2 - Web
3 - Arms

D - Ductile Iron

Details shown which do not affect drive function may be changed without notification.

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

14mm Pitch PowerGrip GT2 Sprocket Specifications
Diameters (in)

Dimensions (in)
Bore Sizes

The Driving Force in Power Transmission.

Sprocket
Number

Number
of
Teeth

Pitch

P36-14MGT-170 PB
P38-14MGT-170 PB
P40-14MGT-170
P44-14MGT-170
P48-14MGT-170
P52-14MGT-170
P56-14MGT-170
P60-14MGT-170
P64-14MGT-170
P68-14MGT-170
P72-14MGT-170
P80-14MGT-170
P90-14MGT-170
P112-14MGT-170
P144-14MGT-170
P168-14MGT-170
P192-14MGT-170
P216-14MGT-170

36
38
40
44
48
52
56
60
64
68
72
80
90
112
144
168
192
216

6.316
6.667
7.018
7.720
8.421
9.123
9.825
10.527
11.229
11.930
12.632
14.036
15.790
19.650
25.264
29.475
33.686
37.896

O.D

Flange
Ref.

Design
Type

A

B

C

D

E

F

M

6.206
6.557
6.908
7.610
8.311
9.013
9.715
10.417
11.119
11.820
12.522
13.926
15.680
19.540
25.154
29.365
33.576
37.786

6.816
7.167
7.518
8.395
8.941
9.687
10.355
11.067
11.750
12.500
13.066
14.625
—
—
—
—
—
—

6F-1
6F-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
AF-1
D-1
D-1
D-3
D-2
D-3
D-2

4.69
4.94
5.54
6.06
6.50
7.18
7.88
8.50
9.53
10.00
10.69
12.13
14.05
17.87
23.31
27.59
31.76
35.93

5.00
5.38
—
—
—
—
—
—
—
—
—
—
9.00
11.39
13.02
13.02
13.02
13.02

7.06
7.06
7.06
7.06
7.06
7.06
7.06
7.06
7.06
7.06
7.06
7.06
—
—
—
—
—
—

6.00
6.00
3.50
3.50
3.50
4.00
4.00
4.50
4.50
4.50
4.50
4.50
4.50
4.50
5.00
5.00
5.00
5.00

1.21
1.21
1.94
1.94
1.94
1.13
1.13
0.75
0.63
0.63
0.63
1.04
0.63
0
1.19
1.19
1.19
1.19

7.42
7.42
7.38
7.38
7.38
7.38
7.38
7.38
7.38
7.38
7.38
7.38
7.38
7.63
7.38
7.38
7.38
7.38

2.63
2.63
1.94
1.94
1.94
2.25
2.25
2.13
2.25
2.25
2.25
1.84
2.25
3.13
1.19
1.19
1.19
1.19

Material Spec :
S - Steel
SS - Sintered Steel
G - Grey Iron
Design Type Suffix:
1 - Solid
2 - Web
3 - Arms

F-CL

Bushing
Size

Min.

Max.

Approx.
Wt.(lb)

Approx.
WR2

Matl.
Spec.

3.73
3.73
4.94
3.69
3.69
3.69
3.69
3.69
3.69
3.69
3.69
3.69
3.10
2.47
3.66
3.66
3.66
3.66

MPB
MPB
3535
3535
3535
4040
4040
4545
4545
4545
4545
4545
4545
4545
6050
6050
6050
6050

1.500
1.500
1.188
1.188
1.188
1.438
1.438
1.938
1.938
1.938
1.938
1.938
1.938
1.938
4.438
4.438
4.438
4.438

3.375
3.375
3.938
3.938
3.938
4.438
4.438
4.938
4.938
4.938
4.938
4.938
4.938
4.938
6.000
6.000
6.000
6.000

47.3
53.5
28.6
38.9
51.0
58.6
70.9
82.9
94.5
113.0
130.1
166.2
159.2
215.1
264.0
462.0
616.0
563.0

1.849
2.321
1.780
2.828
4.283
5.877
8.051
10.85
13.71
18.15
23.00
35.12
42.03
81.3
207.9
384.2
655.7
851.7

D
D
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
D

D - Ductile Iron

Page 111

Details shown which do not affect drive function may be changed without notification.

®

Gates PowerGrip HTD Sprocket Specifications
For 20mm Pitch PowerGrip GT2 Belts
Type D
Type A
F

F

M

E

D
M

E
O.D.

A

L

O.D.

B

K

A

B

L

D

K

C

C

Type G
F
E

O.D. A

M

B

L

D

K

C

Bushing Mounting
QD Bushing Types M - S
mount in a
Conventional manner only.

Motor

Motor

Reverse
Mount

Page 112

Conventional
Mount

R

The Gates Rubber Company

Sprocket Specification Tables
20mm Pitch HTD® Stock Sprockets
115mm (4.53 in) Wide Belts (20M-115)
Sprocket
Code
Symbol

No.
Q.D. of
Bores Teeth

Diameters (Inches)

Dimensions (in)

Bore Sizes

Approx.
Weight† Approx. Mat’l
(lb)
WR2 Spec.

Pitch

O.D.

Flange

Type

A

B

C

D

E

F

K

L

M

Min.

Max.

P34-20M-115

F

34

8.522

8.352

9 716

A-1

63 4

0

5

2 12

1
16

53 8

1 716

33 4

1 716

1

4

36.5

2.820

G

P36-20M-115

F

36

9.023

8.853

92732

A-1

613 16

0

5

2 12

1
16

53 8

1 716

33 4

1 716

1

4

46.3

3.881

G

P38-20M-115

F

38

9.524

9.354

10 716

A-1

75 16

0

5

2 12

1
16

53 8

1 716

33 4

1 716

1

4

51.0

4.833

G

P40-20M-115

F

40

10.026

9.855

1013 16

A-1

7 78

0

5

2 12

1
16

53 8

1 716

33 4

1 716

1

4

57.4

5.878

G

P44-20M-115

F

44

11.028 10.858

1113 16

A-1

813 16

0

5

2 12

1
16

53 8

1 716

33 4

1 716

1

4

70.8

8.681

G

P48-20M-115

J

48

12.031 11.861

1225 32

D-1

913 16

0

5

33 16

3

8

53 8

13 16

45 8

1

1 12

4 12

90.9

13.16

G

P52-20M-115

J

52

13.033 12.863

133 4

D-1

105 8

0

5

33 16

3

8

53 8

13 16

45 8

1

1 12

4 12

110.0

18.56

G

P56-20M-115

J

56

14.036 13.856

143 4

D-2

113 4

9

5

33 16

3

8

53 8

13 16

45 8

1

1 12

4 12

106.0

20.02

G

P60-20M-115

J

60

15.038 14.868

1529 32

D-2

1213 16

9

5

33 16

3

8

53 8

13 16

45 8

1

1 12

4 12

116.0

25.09

G

P64-20M-115

J

64

16.041 15.871

1629 32

D-2

1313 16

9

5

33 16

3

8

53 8

13 16

45 8

1

1 12

4 12

127.0

31.22

G

P68-20M-115

J

68

17.032 16.873

1729 32

D-2

143 4

9

5

33 16

3

8

53 8

13 16

45 8

1

1 12

4 12

148.0

41.30

G

P72-20M-115

J

72

18.046 17.876

18 78

D-2

1519 32

9

5

33 16

3

8

53 8

13 16

45 8

1

1 12

4 12

186.0

52.29

G

P80-20M-115

M

80

20.051 19.881

20 78

D-2

173 4

113 8

5

53 16

1 12

53 8

3

16

63 4

0

2

5 12

237.0

81.91

G

P90-20M-115

M

90

22.557 22.387

2313 32

D-2

205 16

113 8

5

53 16

1 12

53 8

3

16

63 4

0

2

5 12

275.0

120.1

G

P112-20M-115

M

112

28.071 27.901

—

D-2

263 8

113 8

5

53 16

1 12

53 8

3

16

63 4

0

2

5 12

477.0

273.2

G

P144-20M-115

N

144

36.092 35.922

—

G-3

343 8

12

5

61 4

2

53 8

0

813 16

7
8

2 716

5 78

612.0

408.3

G

P168-20M-115

N

168

42.107 41.937

—

G-3

403 8

12

5

61 4

2

53 8

0

8 18

7
8

2 716

5 78

648.0

606.1

G

P192-20M-115

N

192

48.122 47.952

—

G-3

46 1 4

12

5

61 4

2

53 8

0

8 18

7
8

2 716

5 78

786.0

1068

P216-20M-115

N

216

54.136 53.958

—

G-3

52 1 4

12

5

61 4

2

53 8

0

8 18

7
8

2 716

5 78

907.0

1555

G
G

230mm (9.06 in) Wide Belts (20M-230)
P34-20M-170 MPB

34

8.522

8.352

9 716

F-1

6 12

6 12

7 18

—

11 4

7 12

—

6 12

21 4

2 18

41 4

87.2

5.642

G

P36-20M-170 MPB

36

9.023

8.853

92732

F-1

7

7

7 18

—

11 4

7 12

—

6 12

21 4

2 18

4 12

98.7

7.136

G

P38-20M-170

J

38

9.524

9.354

10 716

A-1

73 8

0

7 18

33 16

5

8

7 12

23 16

45 8

2 18

1 12

4 12

64.0

6.369

G

P40-20M-170

J

40

10.026

9.855

1013 16

A-1

73 4

0

7 18

33 16

3

4

7 12

25 16

45 8

2

1 12

4 12

73.4

8.032

G

P44-20M-170

J

44

11.028 10.858

1113 16

A-1

8 78

0

7 18

33 16

5

8

7 12

23 16

45 8

2 18

1 12

4 12

88.1

11.51

G

P48-20M-170

M

48

12.031 11.861

1225 32

D-1

9 78

0

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

120.0

18.50

G

P52-20M-170

M

52

13.033 12.863

133 4

D-1

101116

0

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

149.0

26.45

G

P56-20M-170

M

56

14.036 13.856

143 4

D-1

1113 16

0

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

177.0

35.64

G

P60-20M-170

M

60

15.038 14.868

1529 32

D-1

12 78

0

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

209.0

47.39

G

P64-20M-170

M

64

16.041 15.871

1629 32

D-1

13 78

0

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

236.0

61.79

G

P68-20M-170

M

68

17.032 16.873

1729 32

D-2

1413 16

113 8

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

214.0

58.93

G

P72-20M-170

M

72

18.046 17.876

18 78

D-2

1519 32

113 8

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

238.0

73.88

G

P80-20M-170

M

80

20.051 19.881

20 78

D-2

1713 16

113 8

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

262.0

98.45

G

P90-20M-170

M

90

22.557 22.387

2313 32

D-2

203 8

113 8

7 18

53 16

3

16

7 12

1 12

63 4

13

16

2

5 12

303.0

143.5

G

P112-20M-170

N

112

28.071 27.901

—

D-2

26 1 4

12

7 18

61 4

3

4

7 12

11 4

8 18

0

2 716

5 78

473.0

323.7

G

P144-20M-170

N

144

36.092 35.922

—

D-3

34 1 4

12

7 18

61 4

3

4

7 12

11 4

8 18

0

2 716

5 78

520.0

515.3

G

P168-20M-170

P

168

42.107 41.937

—

G-3

40 1 4

14

7 18

71 4

13 16

7 12

1 116

93 8

13

16

215 16

7

619.0

804.9

G

P192-20M-170

P

192

48.122 47.952

—

G-3

46 1 4

14

7 18

71 4

13 16

7 12

1 116

93 8

13

16

215 16

7

783.0

1315

P216-20M-170

P

216

54.136 53.958

—

G-3

52 18

14

7 18

71 4

13 16

7 12

1 116

93 8

13

16

215 16

7

902.0

1997

G
G

†

Weight shown is for sprocket without bushing.

G = Gray Iron

Details shown which do not affect drive function may be changed without notification.

R

The Driving Force in Power Transmission.

Page 113

Sprocket Specification Tables
20mm Pitch HTD® Stock Sprockets
170mm (6.69 in.) Wide Belts (20M-170)
Sprocket
Code
Symbol

No.
Q.D. of
Bores Teeth

Diameters (Inches)

Dimensions (in)

Bore Sizes

Approx.
Weight† Approx. Mat’l
(lb)
WR2 Spec.

Pitch

O.D.

Flange

Type

A

B

C

D

E

F

K

L

M

Min.

Max.

P38-20M-230 MPB

38

9.524

9.354

10 716

F-1

79 16

7 12

9 12

—

11 4

9 78

—

7 12

35 8

2 78

43 4

128.0

11.06

G

P40-20M-230 MPB

40

10.026

9.855

1013 16

F-1

8

8

9 12

—

11 4

9 78

—

8 12

25 8

2 78

51 4

156.0

14.35

G

P44-20M-230 MPB

44

11.028 10.858

1113 16

F-1

815 16

81 4

9 12

—

11 4

9 78

—

8 12

25 8

2 78

6

189.0

21.65

G

P48-20M-230

M

48

12.031 11.861

1225 32

A-1

915 16

0

9 12

53 16

5

16

9 78

2

63 4

21116

2

5 12

140.0

21.86

G

P52-20M-230

M

52

13.033 12.863

133 4

A-1

102132

0

9 12

53 16

5

16

9 78

2

63 4

21116

2

5 12

175.0

31.64

G

P56-20M-230

M

56

14.036 13.856

143 4

A-1

115 8

0

9 12

53 16

5

16

9 78

2

63 4

21116

2

5 12

204.0

42.74

G

P60-20M-230

M

60

15.038 14.868

1529 32

A-1

1215 16

0

9 12

53 16

5

16

9 78

2

63 4

21116

2

5 12

234.0

54.44

G

P64-20M-230

M

64

16.041 15.871

1629 32

A-1

1315 16

0

9 12

53 16

5

16

9 78

2

63 4

21116

2

5 12

270.0

70.49

G

P68-20M-230

N

68

17.032 16.873

1729 32

D-1

14 78

0

9 12

61 4

3

16

9 78

113 16

8 18

113 16

2 78

5 78

341.0

98.76

G

P72-20M-230

N

72

18.046 17.876

18 78

D-1

1519 32

0

9 12

61 4

3

16

9 78

113 16

8 18

113 16

2 78

5 78

410.0

127.3

G

P80-20M-230

N

80

20.051 19.881

20 78

D-2

17 78

12

9 12

61 4

3

16

9 78

113 16

8 18

113 16

2 78

5 78

343.0

128.9

G

P90-20M-230

N

90

22.557 22.387

2313 32

D-2

20 716

12

9 12

61 4

3

16

9 78

113 16

8 18

113 16

2 78

5 78

398.0

187.5

G

P112-20M-230

N

112

28.071 27.901

—

D-2

26 1 4

12

9 12

61 4

3

16

9 78

113 16

8 18

113 16

2 78

5 78

664.0

368.8

G

P144-20M-230

P

144

36.092 35.922

—

D-3

34 1 4

14

9 12

71 4

15

16

9 78

15 16

93 8

15 16

215 16

7

886.0

637.1

G

P168-20M-230

P

168

42.107 41.937

—

D-3

40 1 4

14

9 12

71 4

15

16

9 78

15 16

93 8

15 16

215 16

7

934.0

967.5

G

P192-20M-230

W

192

48.122 47.952

—

G-3

46

17

9 12

9

1

9 78

1 12

113 8

5

8

4

8 12

1429.0

2203

P216-20M-230

W

216

54.136 53.958

—

G-3

52

17

9 12

9

1

9 78

1 12

113 8

5

8

4

8 12

1317.0

2576

G
G

290mm (11.42 in) Wide Belts (20M-290)
13.033 12.863
14.036 13.856

133 4

A-1

1013 16

0

11 78

61 4

1
2

12 1 4

2 12

8 18

3 12

2 716

5 78

202.0

37.46

G

143 4

A-1

11 78

0

11 78

61 4

1
2

12 1 4

2 12

8 18

3 12

2 716

5 78

237.0

50.16

G

15.038 14.868
16.041 15.871

1529 32

A-1

13

0

11 78

61 4

1
2

12 1 4

2 12

8 18

3 12

2 716

5 78

276.0

65.49

G

1629 32

A-1

14

0

11 78

61 4

1
2

12 1 4

2 12

8 18

3 12

2 716

5 78

320.0

84.94

G

17.032 16.873
18.046 17.876

1729 32

A-1

1415 16

0

11 78

61 4

1
2

12 1 4

2 12

8 18

3 12

2 716

5 78

368.0

109.1

G

18 78

A-2

1519 32

12

11 78

61 4

1
2

12 1 4

2 12

8 18

3 12

2 716

5 78

404.0

120.6

G

20.051 19.881
22.557 22.387

20 78

A-2

1729 32

12

11 78

61 4

1
2

12 1 4

2 12

8 18

3 12

2 716

5 78

376.0

146.7

G

2313 32

A-2

20 12

12

11 78

61 4

1
2

12 1 4

2 12

8 18

3 12

2 716

5 78

431.0

210.6

G

28.071 27.901
36.092 35.922

—

A-2

26 18

14

11 78

71 4

1

4

12 1 4

2 12

93 8

2 12

215 16

7

799.0

447.8

G

—

A-3

34

14

11 78

71 4

1

4

12 1 4

2 12

93 8

2 12

215 16

7

1004.00

818.9

G

42.107 41.937
48.122 47.952

—

A-3

40

17

11 78

9

3

16

12 1 4

21116

113 8

9

16

4

8 12

1410.0

1669

G

192

—

A-3

46

17

11 78

9

3

16

12 1 4

21116

113 8

9

16

4

8 12

1552.0

2491

W

216

54.136 53.958

—

A-3

52

17

11 78

9

3

16

12 1 4

21116

113 8

9

16

4

8 12

1441.0

2991

G
G

P52-20M-340

N

52

13.033 12.863

133 4

A-1

1013 16

0

13 78

61 4

1
2

14 1 4

2 12

8 18

5 12

2 716

5 78

219.0

41.49

G

P56-20M-340

N

56

14.036 13.856

143 4

A-1

11 78

0

13 78

61 4

1
2

14 1 4

2 12

8 18

5 12

2 716

5 78

258.0

55.14

G

P60-20M-340

N

60

15.038 14.868

1529 32

A-1

13 116

0

13 78

61 4

1
2

14 1 4

2 12

8 18

5 12

2 716

5 78

294.0

70.61

G

P64-20M-340

N

64

16.041 15.871

1629 32

A-1

14 116

0

13 78

61 4

1
2

14 1 4

2 12

8 18

5 12

2 716

5 78

339.0

91.26

G

P68-20M-340

N

68

17.032 16.873

1729 32

A-1

15

0

13 78

61 4

1
2

14 1 4

2 12

8 18

5 12

2 716

5 78

389.0

117.1

G

P72-20M-340

N

72

18.046 17.876

18 78

A-2

1519 32

12

13 78

61 4

1
2

14 1 4

2 12

8 18

5 12

2 716

5 78

438.0

133.5

G

P80-20M-340

P

80

20.051 19.881

20 78

A-2

18

14

13 78

71 4

11 4

14 1 4

3 12

93 8

3 12

215 16

7

462.0

183.9

G

P90-20M-340

P

90

22.557 22.387

2313 32

A-2

209 16

14

13 78

71 4

11 4

14 1 4

3 12

93 8

3 12

215 16

7

507.0

245.1

G

P112-20M-340

P

112

28.071 27.901

—

A-2

263 32

14

13 78

71 4

11 4

14 1 4

3 12

93 8

3 12

215 16

7

870.0

492.1

G

P144-20M-340

W

144

36.092 35.922

—

A-3

34

17

13 78

9

1
8

14 1 4

25 8

113 8

25 8

4

8 12

1215.0

982.1

G

P168-20M-340

W

168

42.107 41.937

—

A-3

40

17

13 78

9

1
8

14 1 4

25 8

113 8

25 8

4

8 12

1514.0

1829

G

P192-20M-340

S

192

48.122 47.952

—

D-3

46

19

13 78

12

23 8

14 1 4

1 18

15 1 4

1 18

5 12

10

2847

P216-20M-340

S

216

54.136 53.958

—

D-3

51 78

19

13 78

12

23 8

14 1 4

1 18

15 1 4

1 18

5 12

10

1817.0
1717.0

G
G

P52-20M-290

N

52

P56-20M-290

N

56

P60-20M-290

N

60

P64-20M-290

N

64

P68-20M-290

N

68

P72-20M-290

N

72

P80-20M-290

N

80

P90-20M-290

N

90

P112-20M-290

P

112

P144-20M-290

P

144

P168-20M-290

W

168

P192-20M-290

W

P216-20M-290

340mm (13.39 in) Wide Belts (20M-340)

†

Weight shown is for sprocket without bushing.

G = Gray Iron

Details shown which do not affect drive function may be changed without notification.

Page 114

3625

R

The Gates Rubber Company

®

Gates PowerGrip Timing Belt Pulleys
0.200″ Pitch, XL

0.375″ Pitch, L

0.375″ Pitch, L

For 1 4″ and 3 8″ Wide Belts

For 1 2″ Wide Belts

For 3 4″ Wide Belts

Pulley
Designation

Number
of
Grooves

10XL037
11XL037
12XL037
14XL037
15XL037
16XL037
18XL037
20XL037
21XL037
22XL037
24XL037
28XL037
30XL037
32XL037
36XL037
40XL037
42XL037
44XL037
48XL037
60XL037
72XL037

10
11
12
14
15
16
18
20
21
22
24
28
30
32
36
40
42
44
48
60
72

Pitch
Outside
Diameter Diameter
(in)
(in)
.637
.700
.764
.891
.955
1.019
1.146
1.273
1.337
1.401
1.528
1.783
1.910
2.037
2.292
2.546
2.674
2.801
3.056
3.820
4.584

Pulley
Designation

Number
of
Grooves

10L050
12L050
14L050
16L050
17L050
18L050
19L050
20L050
21L050
22L050
24L050
26L050
28L050
30L050
32L050
40L050
48L050
60L050
72L050
84L050

10
12
14
16
17
18
19
20
21
22
24
26
28
30
32
40
48
60
72
84

.617
.680
.744
.871
.935
.999
1.126
1.253
1.317
1.381
1.508
1.763
1.890
2.017
2.272
2.526
2.654
2.781
3.036
3.800
4.564

Pitch
Outside
Diameter Diameter
(in)
(in)
1.194
1.432
1.671
1.910
2.029
2.149
2.268
2.387
2.507
2.626
2.865
3.104
3.342
3.581
3.820
4.775
5.730
7.162
8.594
10.027

Pulley
Designation

Number
of
Grooves

12L075
14L075
16L075
17L075
18L075
19L075
20L075
21L075
22L075
24L075
26L075
28L075
30L075
32L075
40L075
48L075
60L075
72L075
84L075

12
14
16
17
18
19
20
21
22
24
26
28
30
32
40
48
60
72
84

1.164
1.402
1.641
1.880
1.999
2.119
2.238
2.357
2.477
2.596
2.835
3.074
3.312
3.551
3.790
4.745
5.700
7.132
8.564
9.997

Pitch
Outside
Diameter Diameter
(in)
(in)
1.432
1.671
1.910
2.029
2.149
2.268
2.387
2.507
2.626
2.865
3.104
3.342
3.581
3.820
4.775
5.730
7.162
8.594
10.027

0.375″ Pitch, L

0.500″ Pitch, H

0.500″ Pitch, H

For 1″ Wide Belts

For 3 4″ and 1″ Wide Belts

For 11 2″ Wide Belts

Pulley
Designation

Number
of
Grooves

14L100
16L100
17L100
18L100
19L100
20L100
21L100
22L100
24L100
26L100
28L100
30L100
32L100
40L100
48L100
60L100
72L100
84L100

14
16
17
18
19
20
21
22
24
26
28
30
32
40
48
60
72
84

Pitch
Outside
Diameter Diameter
(in)
(in)
1.671
1.910
2.029
2.149
2.268
2.387
2.507
2.626
2.865
3.104
3.342
3.581
3.820
4.775
5.730
7.162
8.594
10.027

Pulley
Designation

Number
of
Grooves

14H100
16H100
18H100
20H100
22H100
24H100
26H100
28H100
30H100
32H100
40H100
48H100
60H100
72H100
84H100
96H100
120H100

14
16
18
20
22
24
26
28
30
32
40
48
60
72
84
96
120

1.641
1.880
1.999
2.119
2.238
2.357
2.477
2.596
2.835
3.074
3.312
3.551
3.790
4.745
5.700
7.132
8.564
9.997

Pitch
Outside
Diameter Diameter
(in)
(in)
2.228
2.546
2.865
3.183
3.501
3.820
4.138
4.456
4.775
5.093
6.366
7.639
9.549
11.459
13.369
15.279
19.099

Pulley
Designation

Number
of
Grooves

14H150
16H150
18H150
20H150
22H150
24H150
26H150
28H150
30H150
32H150
40H150
48H150
60H150
72H150
84H150
96H150
120H150

14
16
18
20
22
24
26
28
30
32
40
48
60
72
84
96
120

2.174
2.492
2.811
3.129
3.447
3.766
4.084
4.402
4.721
5.039
6.312
7.585
9.495
11.405
13.315
15.225
19.045

0.500″ Pitch, H

0.500″ Pitch, H

For 2″ Wide Belts

For 3″ Wide Belts

Pulley
Designation

Number
of
Grooves

16H200
18H200
20H200
22H200
24H200
26H200
28H200
30H200
32H200
40H200
48H200
60H200
72H200
84H200
96H200
120H200

16
18
20
22
24
26
28
30
32
40
48
60
72
84
96
120

Pitch
Outside
Diameter Diameter
(in)
(in)
2.546
2.865
3.183
3.501
3.820
4.138
4.456
4.775
5.093
6.366
7.639
9.549
11.459
13.369
15.279
19.099

R

2.492
2.811
3.129
3.447
3.766
4.084
4.402
4.721
5.039
6.312
7.585
9.495
11.405
13.315
15.225
19.045

Pulley
Designation

Number
of
Grooves

16H300
18H300
20H300
22H300
24H300
26H300
28H300
30H300
32H300
40H300
48H300
60H300
72H300
84H300
96H300
120H300

16
18
20
22
24
26
28
30
32
40
48
60
72
84
96
120

1.402
1.641
1.880
1.999
2.119
2.238
2.357
2.477
2.596
2.835
3.074
3.312
3.551
3.790
4.745
5.700
7.132
8.564
9.997

Pitch
Outside
Diameter Diameter
(in)
(in)
2.228
2.546
2.865
3.183
3.501
3.820
4.138
4.456
4.775
5.093
6.366
7.639
9.549
11.459
13.369
15.279
19.099

2.174
2.492
2.811
3.129
3.447
3.766
4.084
4.402
4.721
5.039
6.312
7.585
9.495
11.405
13.315
15.225
19.045

Pitch
Outside
Diameter Diameter
(in)
(in)
2.546
2.865
3.183
3.501
3.820
4.138
4.456
4.775
5.093
6.366
7.639
9.549
11.459
13.369
15.279
19.099

The Driving Force in Power Transmission.

2.492
2.811
3.129
3.447
3.766
4.084
4.402
4.721
5.039
6.312
7.585
9.495
11.405
13.315
15.225
19.045

Page 115

Sprocket Specifications
Sprocket Tolerance Specifications
PowerGrip® GT®2 sprockets are made to close tolerances. Modifications such as reboring may result in unsatisfactory drive
performance. Strict adherence to the standard tolerances (as shown in table below) is highly recommended.

Sprocket Outside Diameter and Pitch
Outside
Diameter
Tolerance
(in)

Outside Diameter
Range (in)
Over 2.000 to and
including 4.000
Over 4.000 to and
including 7.000
Over 7.000 to and
including 12.000
Over 12.000 to and
including 20.000

+ 0.004
– 0.000
+ 0.005
– 0.000
+ 0.006
– 0.000
+ 0.007
– 0.000
+ 0.008
– 0.000

Over 20.000

Pitch To Pitch Tolerance (in)
Adjacent
Grooves

Accumulative Over
90 Degrees

± 0.001

± 0.0045

± 0.001

± 0.005

± 0.001

± 0.006

± 0.001

± 0.0065

± 0.001

± 0.0075

Sprocket Runout
Radial Runout*
Total Eccentricity
Total Indicator Reading

Outside Diameter
(in)

(mm)

(in)

(mm)

Up to 2

50
50
100
100
200

0.0025

0.06

0.003

0.08

0.004

0.10

Over 2 to 4
Over 4 to 8
Over 8

Balancing
Stock Sprockets are statically balanced per MPTA (Mechanical
Power Transmission Association) Standard Practice for Pulley
Balancing SPB-86 using the weight based on the following two
criteria:

.0005 per inch
.013 per mm O.D.
O.D. over 8″
over 200mm
(may not exceed face diameter tolerance)

200

* Total Indicator Reading

Axial Runout*
For outside diameters 1.0 inches and under. . 0.001 inches
For each additional inch of outside diameter up through
10.0 inches, add . . . . . . . . . . . . . . . . 0.001 inches
For each additional inch of outside diameter
over 10.0 inches, add . . . . . . . . . . . . . 0.0005 inches
* Total Indicator Reading

Sprocket and Bushing Keyseat
Shaft Diameter
(in)

Over
Over
Over

7
9

16
16

7

8

Width wk†
(in)

Up through 716 (0.44)
(0.44) to and incl. 9 16 (0.56)
(0.56) to and incl. 78 (0.88)
(0.88) to and incl. 1 14 (1.25)

Over
Over
Over
Over

1 14
13 8
13 4
2 14

(1.25)
(1.38)
(1.75)
(2.25)

to and incl.
to and incl.
to and incl.
to and incl.

13 8
13 4
2 14
23 4

(1.38)
(1.75)
(2.25)
(2.75)

Over
Over
Over
Over

23 4
3 14
33 4
4 12

(2.75)
(3.25)
(3.75)
(4.50)

to and incl.
to and incl.
to and incl.
to and incl.

3 14
33 4
4 12
5 12

(3.25)
(3.75)
(4.50)
(5.50)

†

3

32
1

3

16
1

5

8

4

16

3
1
5
3
7

8
2
8
4
8

1
1

1

4

(0.0938)
(0.125)
(0.1875)
(0.250)
(0.3125)
(0.375)
(0.500)
(0.625)
(0.750)
(0.875)
(1.000)
(1.250)

Depth, hk (in)
+ 0.015
0.000
3
1
3

64

16
32

1
5

8

32

3

16
1

5

4

16

3
7

8

16

1
5

2
8

(0.047)
(0.062)
(0.094)
(0.125)
(0.156)
(0.188)
(0.250)
(0.312)

1. Balance limit (ounces) = Sprocket Weight (lb) x 0.016; or
2. 0.176 ounce (5 grams), whichever is greater.
Caution: Stock sprockets should not be used on drives where
rim surface speeds exceed 6,500 fpm. Sprocket construction
and materials will determine the dynamic balancing requirements of the sprocket(s) where rim surface speeds exceed
6,500 fpm.

Sprocket Tooth Profile and Surface Quality
The PowerGrip GT2 sprocket tooth profile was designed and
developed exclusively by The Gates Rubber Company to operate with the Gates PowerGrip GT2 Belt. See Engineering Section II-3, Tooth Profile, on page 137 for a complete discussion of
the performance characteristics of this new tooth profile. The
tooth surface should be free of any surface defects and should
be 80 microinches finish or better.

Sprocket Blanks
Sprocket blanks can be grooved by Gates for specially designed, made-to-order sprockets. If those sprockets are supplied in blank form, Gates can perform the “grooving” operation.
The blank diameter must be 0.050″ larger than the finished
sprocket O.D. Contact your local Gates Representative for additional details.

(0.375)
(0.438)
(0.500)
(0.625)

Tolerance on width, Wk
For width up through 1/2 (0.500) . . . . . . . . . + 0.002, 0.000 inches
For width over 1/2 (0.500) up through 1 (1.000) . . + 0.003, 0.000 inches
For width over 1 (1.000). . . . . . . . . . . . . . + 0.004, 0.000 inches

Page 116

R

The Gates Rubber Company

Recommended Re-bore Specifications and Instructions
For Minimum Plain Bore (MPB) Sprockets
®

When using MPB PowerGrip GT®2 sprockets in power transmission systems, important guidelines should be followed for
proper product finishing and application. Due to the high load
carrying capacity and high operating tensions often found in
PowerGrip GT2 belt drive systems, it is imperative to use and
adhere to industry standard practices.

Class 1 Clearance Fits should be used when the transmitted load is smooth in nature.
Interference Fits should be used for PowerGrip GT2
curvilinear drives transmitting cyclical, pulsating, or reversing loads.

When finishing MPB sprockets for high performance belt drive
systems, care should be taken to ensure proper functionality
and performance. General re-bore instructions and specifications are as follows:

Table 1 - Recommended Shaft / Bore Fits (Inches)

1. Materials used in PowerGrip GT2 sprockets are steel, gray
iron, and ductile iron. The materials used may vary with the
size of the sprocket. See the Sprocket Specification Tables, pages 101 thru 111 for specific materials.
2. The maximum bore diameter specified by the manufacturer for each sprocket size should NOT be exceeded, or a
keyway used which reduces the hub thickness to less than
its minimum allowable value. See the Sprocket Specification Tables for a listing of recommended bore ranges by
sprocket size. Bores exceeding the maximum recommended value for a particular sprocket size can adversely
affect the structural integrity, thereby reducing their
load-carrying capability.
The minimum metal thickness between the keyway and
hub O.D. should be no less than the set screw diameter
specified for the corresponding sprocket size. See Figure 1. A listing of minimum set screw diameters is included
below.
P18-5MGT - 8-32
P19-5MGT thru P22-5MGT -10-32
P23-5MGT thru P32-5MGT -1/4″
P34-5MGT thru P38-5MGT -5/16″
P40-5MGT thru P50-5MGT -3/8″
P28-14MGT thru P29-14MGT -7/16″
P36-14MGT thru P38-14MGT -5/8″

Figure 1 — Minimum Hub Thickness And Set Screw Placement Guidelines

3. The fit between a finished sprocket bore and its mating
shaft in a power transmission system must not allow relative movement between the bore and the shaft when the
drive is subjected to belt tension and torque loads. This is
accomplished, in the case of plain bore sprockets, with the
use of set screws and keys and by controlling the fit or
clearance between the sprocket bore and its mating shaft.
Cyclical, pulsating, or reversing loads may wear the
sprocket bore and/or keyway due to the relative movement
between the contacting surfaces of the shaft and the bore.
The resulting wear may increase the clearance further, if an
interference fit is not used.
In order to maximize the performance of high capacity belt
drives using plain bore style sprockets, the following for recommendations presented in Table 1 should be followed:
R

Clearance Fits

Interference Fits

Class 1- Smooth
Load

Cyclical, Pulsating,
Reversing Load

Nominal Bore Shaft Bore
Bore Tolerance
Range
Tol.
Tol. Fit Tol.
Range
Over - To (Incl.) (minus) (Plus) (Plus)
(Minus)
0.4375 - 0.5626
0.5625 - 0.8750
0.8750 - 1.2500
1.2500 - 1.3750
1.3750 - 1.500
1.5000 - 1.7500
1.7500 - 2.0000
2.0000 - 2.2500
2.2500 - 2.7500
2.7500 - 3.0000
3.0000 - 3.2500
3.2500 - 3.7500
3.7500 - 4.0000
4.0000 - 4.5000
4.5000 - 5.0000
5.0000 - 5.5000
5.5000 - 6.5000

0.0005
0.0005
0.0005
0.0005
0.0005
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010

0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0015
0.0015
0.0015
0.0015
0.0015
0.0015
0.0015
0.0015
0.0015
0.0015

0.0015
0.0015
0.0015
0.0015
0.0015
0.0020
0.0020
0.0025
0.0025
0.0025
0.0025
0.0025
0.0025
0.0025
0.0025
0.0025
0.0025

0.0005
0.0005
0.0005
0.0005
0.0005
0.0010
0.0010
0.0010
0.0010
0.0010
0.0015
0.0015
0.0015
0.0020
0.0020
0.0025
0.0025

0.0010
0.0010
0.0010
0.0010
0.0010
0.0020
0.0020
0.0020
0.0020
0.0020
0.0030
0.0030
0.0030
0.0035
0.0035
0.0040
0.0040

Fit Tolerance
Range
(Minus)
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
0.0005
0.0005
0.0005
0.0010
0.0010
0.0015
0.0015

0.0010
0.0010
0.0010
0.0010
0.0010
0.0020
0.0020
0.0020
0.0020
0.0020
0.0030
0.0030
0.0030
0.0035
0.0035
0.0040
0.0040

Table 1 was extracted in part from AGMA Standard for Bores and Keyways for
Flexible Couplings (Inch Series) AGMA 9002-A86 Table.

4. DO NOT chuck or center the sprocket on guide flanges.
Soft jaws should be used when chucking on the sprocket
teeth. Center (indicate) the sprocket using the sprocket
tooth O.D.
If chucked on the Rim I.D. or Hub O.D., the sprocket should
be centered with respect to the sprocket tooth O.D. Guide
flanges are permanently mounted and should not be removed. If original flanges must be removed, they should be
replaced with NEW flanges. New guide flanges should be
attached securely with care using mechanical fasteners
such as screws. Note: Improper guide flange reassembly may cause serious personal injury and/or mechanical damage.
5. Set screw holes in the sprocket hub must be placed properly for maximum holding strength. For both standard and
shallow keyseats, two (2) set screws should be used as illustrated in Figure 2. The total holding strength of the set
screws is dependent upon their placement and design.
Generally, one screw should be placed directly over the
keyway, and the other screw at ninety degrees (90°) from
the keyway, or at sixty-five degrees (65°) from the
keyway—a more recent practice that improves holding
power. Sometimes four set screws (or two pair) are used
for increased holding strength.

The Driving Force in Power Transmission.

Page 117

Recommended Re-bore Specifications and Instructions
For Minimum Plain Bore (MPB) Sprockets

Figure 2 — Set Screw Angles

Each set screw should be placed axially—a minimum of
one set screw diameter from the end of the sprocket hub
extension. See Figure 1. For recommended set screw

Table 2 — Recommended Tightening
Torque Values For Set Screws
Set Screw Size

Hex Key Size
(in)

8-32

5

10-32

3

1
5

16

3
7

4

8

16

1
5

2
8

64

20

32

35

8

80

32

160

16

275

32

430

1
5
3
7

4

615

16

1315

1
5

Approximate Installation
Torque Values (lb-in)

tightening torque values see Table 2 below.
6. After reboring, the sprocket may require rebalancing. Vibration, noise, reduced bearing life, and undue stresses on
the mechanical components in the system could result if
improper rebalancing practices are used. See Sprocket
Specifications, page 116, for recommended sprocket balancing specifications.
7. Standard square or rectangular keys should be used. See
page 121 for standard key dimensions.
Refer to Sprocket Specifications, page 116, for specifications
and tolerances for sprocket eccentricity, parallelism, and balancing.

Page 118

R

The Gates Rubber Company

Stock Bushings for Sprockets
B
For removing from Shaft:
-Bushing Half of Hole Threaded
-Hub Half of Hole NOT Threaded

Position of Screw
to Tighten Bushing

Bolt
Circle

55

85o

A

85o

8o Taper
Included Angle

Section A-A

Screw for Tightening on Shaft:
-Hub Half of Hole Threaded
-Bushing Half of Hole NOT Threaded

o

A
B

A

Position of Screw
to Tighten Bushing

1008 thru 3020

A

Bolt
Circle

55

G
60o 52o

8o Taper
Included Angle

Section A-A

o

G

A

B

For removing from Shaft:
-Bushing Half of Hole Threaded
-Hub Half of Hole NOT Threaded

A

Socket Head
Cap Screws
Screw for Tightening on Shaft:
-Hub Half of Hole Threaded
-Bushing Half of Hole NOT Threaded

3525 thru 5040
A
For Bushing
Removal

o

80

A

Bolt
Circle

82 45
o

o

o

33

o

43

o

37

38

A

60

o

o

o

o
45 35

Hex Head Cap
A Screws for Bushing
Installation

o

Section A-A

o

8 Taper
Included Angle

31

A

6050

7060

TAPER-LOCK* BUSHINGS
Bore Range
(in)

Bushing
Size

Torque Capacity
(lb-in)

1008
1108
1210
1610
1615
2012
2517
3020
3525
3535
4030
4040
4535
4545
5040
6050
7060

1,200
1,300
3,600
4,300
4,300
7,150
11,600
24,000
44,800
44,800
77,300
77,300
110,000
110,000
126,000
282,000
416,000

Dimensions (in)

Mounting Screws

A

B

Bolt Circle
(in)

Qty.

1.386
1.511
1.875
2.250
2.25
2.750
3.375
4.250
5.000
5.000
5.750
5.750
6.375
6.375
7.000
9.250
10.250

0.875
0.875
1.000
1.000
1.500
1.250
1.750
2.000
2.500
3.500
3.000
4.000
3.500
4.500
4.000
5.000
6.000

1.328
1.328
1.750
2.125
2.125
2.625
3.250
4.000
4.830
4.830
5.540
5.540
6.130
6.130
6.720
9.000
10.000

2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
4

1
1
3
3
3
7

1
1

4
4
8
8
8

16
1
2
5
8
1
2
1
2
5
8
5
8
3
4
3
4
7
8
1
4
1
4

Max Bore

Size

G
(deg)

x 12
x 12
x 58
x 58
x 58
x 78
x 1
x1 14
x1 12
x1 12
x13 4
x13 4
x 2
x 2
x2 14
x3 12
x3 12

—
—
—
—
—
—
—
—
39
39
40
40
40
40
37
—
—

Weight Range
(lb)

Standard Shallow
Min. Bore Keyseat*** Keyseat** Max. Bore Min. Bore
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.875
1.188
1.188
1.438
1.438
1.938
1.938
2.438
4.438
4.938

0.875
1.000
1.250
1.500
1.500
1.875
2.250
2.750
3.250
3.250
3.625
3.625
4.250
4.250
4.500
6.000
7.000

1.000
1.125
—
1.688
1.688
2.125
2.688
3.250
3.938
3.938
4.438
4.438
4.938
4.938
5.000
—
—

0.2
0.1
0.4
0.5
0.6
0.9
1.8
3.3
3.7
5.0
6.4
8.2
8.8
11.2
15.9
45.0
66.0

0.3
0.3
0.6
0.9
1.3
1.7
3.7
6.5
10.9
14.8
17.3
22.1
23.7
30.3
31.5
57.0
87.0

* Registered trademark of Reliance Electric. ** Key is furnished with each bushing having a shallow keyseat.

R

The Driving Force in Power Transmission.

Page 119

Stock Bushings for Sprockets — continued
L
G

F

D

B

/4" Taper
Per Foot
(on diameter)
3

Style M through S

Style F to J

A

E

QD Bushings
Dimensions (in)

Cap Screws

Bushing
Size

Torque Capacity
(lb-in)

A

B

D

E

F

G

F
J
M
N
P
W
S

30,000
45,000
85,000
150,000
250,000
375,000
625,000

1.000
1.125
1.250
1.500
1.750
2.000
2.750

4.438
5.141
6.500
7.000
8.250
10.422
12.125

6.625
7.250
9.000
10.000
11.750
15.000
17.750

2.844
3.563
5.594
6.813
7.875
9.500
12.750

2.500
3.188
5.188
6.250
7.250
9.000
12.000

0.344
0.375
0.406
0.563
0.625
0.500
0.750

L

Bolt Circle

No.

3.750
4.625
6.750
8.125
9.375
11.375
15.250

5.625
6.250
7.875
8.500
10.000
12.750
15.000

3
3
4
4
4
4
5

Size
-12
-11
-10
-9
8
1-8
1 18-7
1 14-7

9

16
5
8
3
4
7

* Maximum bore without keyway
**Maximum bore with shallow keyway

Page 120

R

The Gates Rubber Company

x35 8
x4 12
x63 4
x 8
x9 12
x11 12
x 15

Bore Range (in) Weight Range (lb)
Max.
Bore

Min.
Bore

1.000 4.000*
8.5
1.438 4.500**
12.8
2.000 5.500**
47.8
2.438 6.000**
48.0
2.938 7.000**
69.5
4.000 8.500** 164.0
5.500 10.000** 133.0

19.5
29.7
63.8
94.0
133.0
262.0
350.0

Min.

Max.

Bushing Bore and Keyseat Information
Taper Lock and QD Bushings are available from stock with all popular bores within the bore range of each size bushing.
The Taper Lock and QD Bushing Keyseat Dimension charts below list the bore range for each bushing and the appropriate keyseat dimensions.
Where standard keyseats are indicated, refer to the Standard Keyseat Dimensions chart. Where bores do not permit standard depth
keyseats, a flat key of the proper dimensions is furnished with the bushing.

QD Bushing Keyseat Dimensions

Taper-Lock Bushing Keyseat Dimensions
Bushing
1008
1108
1210
1610
1615
2012
2517
3020
3525

3535

4030

4040

4535

4545
5040
6050
7060

Bores (in)

Keyseat

0.500 - 0.875
0.938 - 1.000
0.500 - 1.000
1.062 - 1.125
0.500 - 1.250
0.500 - 1.500
1.563 - 1.688
0.500 - 1.500
1.563 - 1.688
0.500 - 1.875
1.938 - 2.125
0.500 - 2.250
2.313 - 2.688
0.875 - 2.750
2.813 - 3.250
1.188 - 3.250
3.313 - 3.750
3.875 - 3.938
1.188 - 3.250
3.313 - 3.750
3.875 - 3.938
1.438 - 3.625
3.688 - 3.750
3.875 - 4.438
1.438 - 3.625
3.688 - 3.750
3.875 - 4.438
1.938 - 4.250
4.375 - 4.500
4.750 - 4.938
1.938 - 4.250
4.375 - 4.500
4.750 - 4.938
2.438 - 4.500
4.875 - 5.000
4.438 - 6.000
4.938 - 7.000

Standard
1 x 1
4
16
Standard
1 x 1
4
16
Standard
Standard
3 x 1
8
8
Standard
3 x 1
8
8
Standard
1 x 3
2
16
Standard
5 x 3
8
16
Standard
3 x 1
4
4
Standard
7 x 1
8
4
1 x 14
Standard
7 x 1
8
4
1 x 14
Standard
7 x 1
8
4
1 x 14
Standard
7 x 1
8
4
1 x 14
Standard
1 x 14
1 14 x 14
Standard
1 x 14
1 18 x 14
Standard
1 14 x 716
Standard
Standard

Bushing
F
J
M
N

P
W
S

Bores (in)

Keyseat

1.000 - 3.250
3.375 - 3.750
3.875 - 3.938
1.500 - 3.750
3.875 - 4.500
2.000 - 4.750
4.875 - 5.500
2.438 - 5.000
5.125 - 5.500
5.625 - 6.000
2.938 - 5.938
6.000 - 6.500
7.000
4.000 - 8.000
5.500 - 10.000

Standard
7 x 3
8
16
1 x 18
Standard
1 x 18
Standard
1 14 x 14
Standard
1 14 x 14
1 12 x 18
Standard
1 12 x 14
1 3 4 x 14
Made to order
Made to order

Standard Keyseat Dimensions
Keyseat (in)
Shaft Diameter (in)

Width

0.313 - 0.438
0.500 - 0.563
0.625 - 0.875
0.938 - 1.250
1.313 - 1.375
1.438 - 1.750
1.813 - 2.250
2.313 - 2.750
2.813 - 3.250
3.313 - 3.750
3.813 - 4.500
4.563 - 5.500
5.563 - 6.500
6.563 - 7.500
7.563 - 9.000

3

32
1
8
3
16
1
4
5
16
3
8
1
2
5
8
3
4
7
8

1
1 14
1 12
13 4
2

R

Key (in)
Depth
3
1
3

64
16

32
1
8
5
32
3
16
1
4
5
16
3
8
7
16
1
2
5
8
3
4
3
4
3
4

Width

Depth

3

3

1
1 14
1 12
13 4
2

1
1 14
1 12
1 12
1 12

32
1
8
3
16
1
4
5
16
3
8
1
2
5
8
3
4
7
8

The Driving Force in Power Transmission.

32
1
8
3
16
1
4
5
16
3
8
1
2
5
8
3
4
7
8

Page 121

Bushing Bore and Keyseat Information — continued
Specifying English and Metric Keyways
Dimensioning and specifying metric keys and keyways varies
significantly from the English system. In the English system, it is
the standard practice to dimension the keyway, while in the metric system it is common practice to specify the key size. In the
English system, the keyway in the hub is dimensioned by the
width and depth at the side, but in the metric system the keyway is
dimensioned by the width and the depth measured from the radius of the shaft to the center of the keyway. One of the following
methods should be used to specify keyways:
English:
W x T1 Keyway
W x T Key

W

h

T1
T

Metric:
W x T Key
W x h Keyway

r

H

T2

Unless otherwise noted, the keyway in the shaft is assumed to be
standard. Also, T1 and T2 are not necessarily equal.
The metric system does not refer to keyseat or keyway dimensions as does the English system. Instead, dimensions are given
for the key itself which is rectangular in shape, not square, as in
the English system. The correct terminology when ordering metric bored bushings with millimeter keyways will be either of the following:
1. Specify “standard Keyway”
2. Customer to specify keysize (keyseat to be
standard size in shaft)

Metric Bore and Key Dimensions for Taper-Lock Bushings
Bushing
1008

1108

1210

1610

2012

2517

3020

Bore
(mm)

Keyway (WxT)
(mm)

Key Size (ref.)
(mm)

14, 16
18, 19, 20, 22
24
14*, 16
18, 19, 20, 22
24, 25
14, 16
18, 19, 20, 22*
24, 25, 28, 30
14*, 16*
18*, 19, 20, 22
24, 25, 28, 30
32, 35, 38
40
14, 16
18, 19, 20, 22
24, 25, 28, 30
32, 35, 38
40, 42
45, 48*
14, 16
18, 19*, 20, 22
24, 25, 28, 30
32, 35, 38
40, 42
45, 48, 50
55
60, 65*
24, 25, 28, 30*
32*, 35*, 38*
40, 42*
45, 48, 50
55
60, 65
70*, 75*

5 X 2.3
6 X 2.8
8 X 3.3
5 X 2.3
6 X 2.8
8 X 3.3
5 X 2.3
6 X 2.8
8 X 3.3
5 X 2.3
6 X 2.8
8 X 3.3
10 X 3.3
12 X 3.3
5 X 2.3
6 X 2.8
8 X 3.3
10 X 3.3
12 X 3.3
14 X 3.8
5 X 2.3
6 X 2.8
8 X 3.3
10 X 3.3
12 X 3.3
14 X 3.8
16 X 4.3
18 X 4.4
8 X 3.3
10 X 3.3
12 X 3.3
14 X 3.8
16 X 4.3
18 X 4.4
20 X 4.9

5X5
6X6
8X7
5X5
6X6
8X7
5X5
6X6
8X7
5X5
6X6
8X7
10 X 8
12 X 8
5X5
6X6
8X7
10 X 8
12 X 8
14 X 9
5X5
6X6
8X7
10 X 8
12 X 8
14 X 9
16 X 10
18 X 11
8X7
10 X 8
12 X 8
14 X 9
16 X 10
18 X 11
20 X 12

* Non-stock, made to order bushing

Page 122

R

The Gates Rubber Company

Taper-Lock Type Sprocket Installation and Removal

To Install TAPER-LOCK Type Bushings
1. Clean the shaft, bore of bushing, outside of bushing and the
sprocket hub bore of all oil, paint and dirt. File away any
burrs.
Note: The use of lubricants can cause sprocket breakage.
USE NO LUBRICANTS IN THIS INSTALLATION.
2. Insert the bushing into the sprocket hub. Match the hole pattern, not threaded holes (each complete hole will be
threaded on one side only).
3, LIGHTLY oil the set screws and thread them into those
half-threaded holes indicated by on the diagram above.
Note: Do not lubricate the bushing taper, hub taper, bushing
bore, or the shaft. Doing so could result in sprocket breakage.
4. With the key in the shaft keyway, position the assembly onto
the shaft allowing for small axial movement of the sprocket
which will occur during the tightening process.
Note: When mounting sprockets on a vertical shaft, precautions must be taken to positively prevent the sprocket and/or
bushing from falling during installation.

5. Alternately torque the set screws until the sprocket and
bushing tapers are completely seated together (at approximately half of the recommended torque; see table below).
Note: Do not use worn hex key wrenches. Doing so may result in a loose assembly or may damage screws.
6. Check the alignment and sprocket axial runout (wobble),
and correct as necessary.
7. Continue alternate tightening of the cap screws to the recommended torque values specified in the table below.
8. To increase the bushing gripping force, hammer the face of
the bushing using a drift or sleeve (Do Not Hit The Bushing
Directly With The Hammer).
9. Re-torque the bushing screws after hammering.
10. Recheck all screw torque values after the initial drive run-in,
and periodically thereafter. Repeat steps 5 through 9 if loose.

To Remove
3. Loosen the bushing by alternately tightening the screws in
small but equal increments until the tapered sprocket and
bushing surfaces disengage.

1. Loosen and remove all mounting screws.
2. Insert screws into all jack screw holes indicated by “ ”
(see figure above).

•

Sprocket Installation
Bolts

Torque Wrench

Bushing
Style

Qty.

Size

lb-ft

lb-in

1008
1108
1210
1610
1615
2012
2517
3020
3525
3535
4030
4040
4535
4545
5040
6050
7060

2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
4

1/4-20 x 1/2
1/4-20 x 1/2
3/8-16 x 5/8
3/8-16 x 5/8
3/8-16 x 5/8
7/16-14 x 7/8
1/2-13 x 1
5/8-11 x 1 1/4
1/2-13 x 1 1/2
1/2-13 x 1 1/2
5/8-11 x 1 3/4
5/8-11 x 1 3/4
3/4-10 x 2
3/4-10 x 2
7/8-9 x 2 1/4
1 1/4-7 x 3 1/2
1 1/4-7 x 3 1/2

4.6
4.6
14.6
14.6
14.6
23.3
35.8
66.7
83.3
83.3
141.7
142
204.2
204
258
652
652

55
55
175
175
175
280
430
800
1000
1000
1700
1700
2450
2450
3100
7820
7820

Caution: Excessive bolt torque can cause sprocket and/or bushing breakage.
Note: To insure proper bushing/sprocket performance, full bushing contact on the shaft is recommended.

R

The Driving Force in Power Transmission.

Page 123

QD Type Sprocket Installation and Removal

Conventional Mount

Reverse Mount

To Install QD Type Bushings
1. Clean the shaft, bore of bushing, outside of bushing and the
sprocket hub bore of all oil, paint and dirt. File away any
burrs.
Note: The use of lubricants can cause sprocket breakage.
USE NO LUBRICANTS IN THIS INSTALLATION.
2. For Position One or Position Two (whichever applies), line
up the unthreaded bushing holes C with the threaded
sprocket hub holes T. Lightly oil the cap screws and thread
them (with lock washers) into the sprocket hub engaging
only 2 or 3 threads. Screw heads should be mounted outside
to allow for disassembly. When mounting sprockets on M
through W bushing sizes, position the threaded jack screw
hole (J) as far from the bushing saw slot as possible to reduce the possibility of bushing breakage during disassembly.
Note: Do not lubricate the bushing taper, hub taper, bushing
bore, or the shaft. Doing so could result in sprocket breakage.
3. With the key in the shaft keyway, position the assembly onto
the shaft allowing for small axial movement of the sprocket
which will occur during the tightening process. When installing large or heavy parts in Position One (see figure above), it
may be easier to mount the key and bushing onto the shaft

4.

5.
6.

7.

first then place the sprocket on the bushing and align the
holes.
Note: When mounting sprockets on a vertical shaft, precautions must be taken to positively prevent the sprocket and/or
bushing from falling during installation.
Alternately tighten the cap screws until the sprocket and
bushing tapers are completely seated together (at approximately half the recommended torque).
Check the alignment and sprocket runout (wobble), and correct as necessary.
Continue alternate tightening of the cap screws to the recommended torque values specified in the table below.
Note: Excessive cap screw torque can cause sprocket
and/or bushing breakage. When properly mounted, there
must be a gap between bushing flange and sprocket after
the screws are tightened.
Tighten the set screw, when available, to hold the key securely during operation.

To Remove
1. Loosen and remove all mounting screws.
2. Insert cap screws into all threaded jack screw holes J (see
figure above).
3. Loosen the bushing by first tightening the screw furthest
from the bushing saw slot, then alternately tighten remaining
screws. Keep tightening the screws in small but equal incre-

ments until the tapered sprocket and bushing surfaces disengage.
Note: Excessive or unequal pressure on the cap screws can
break the bushing flange, making removal nearly impossible
without destroying the sprocket.

Sprocket Installation
Bolts

Torque Wrench

Bushing
Style

Qty.

Size

lb-ft

lb-in

H
JA
SH & SDS
SD
SK
SF
E
F
J
M
N
P
W
S

2
3
3
3
3
3
3
3
3
4
4
4
4
5

1/4 x 3/4
10-24 x 1
1/4-20 x 1 3/8
1/4-20 x 1 7/8
5/16-18 x 2
3/8-16 x 2
1/2-13 x 2 3/4
9/16-12 x 3 5/8
5/8-11 x 4 1/2
3/4-10 x 6 3/4
7/8-9 x 8
1-8 x 9 1/2
1 1/8-7 x 11 1/2
1 1/4-7 x 15 1/2

7.9
4.5
9.0
9.0
15.0
30.0
60.0
75.0
135.0
225.0
300.0
450.0
600.0
750.0

95
54
108
108
180
360
720
900
1620
2700
3600
5400
7200
9000

Caution: Excessive bolt torque can cause sprocket and/or bushing breakage.
Note: To insure proper bushing/sprocket performance, full bushing contact on the shaft is recommended.

Page 124

R

The Gates Rubber Company

Belt Drive Tensioners
(Double Adjustable)

H
J

M
TAP

Q

N
P

Specifications
Tensioner
Product No.

Use
With

Part
No.

A
(in)

B
(in)

C
(in)

D
(in)

E
(in)

F
(in)

G
(in)

H
(in)

J
(in)

7720-2010

8mm Pitch
10-IDL-BRAK2 4.63
PowerGrip GT2

3.50

1.75

2.00

2.06

3.06

0.38

1.50

0.56

3

7720-2020

14mm Pitch
20-IDL-BRAK2 6.94
PowerGrip GT2

5.25

2.63

5.00

3.00

4.56

0.63

2.38

1.00

®

M
(Threads)

N
(in)

P
(in)

Q
(in)

Weight
(lb)

-16

1.00

1.88

1.75

2.7

1-14

1.63

2.94

0.75

10.8

4

®

PowerGrip GT 2 Idler Sprockets

PowerGrip® GT® 2 Idler Dimensions
Product
No.
7720-1740

Use
With

Part
No.

Size
Designation

Belt
Width No. of O.D.
(mm) Teeth (in)

B
Ref.
(in)

C
(in)

D
(in)

E
F
G
Ref. (Threads) Ref.
(in)
(in)
(in)

32S-8MGT-20

20

32

3.154

1.25

0.50

1.24

1.56

3

36S-8MGT-30

30

36

3.555

1.91

0.75

1.86

1.63

3

7720-1760

20-SPK2-IDL
8mm Pitch
30-SPK2-IDL
PowerGrip GT2
50-SPK2-IDL

36S-8MGT-50

50

36

3.555

1.91

0.75

2.91

1.69

3

7720-1850

40-SPK2-IDL

30S-14MGT-40

40

30

5.153

2.55

1.00

2.06

2.25

7720-1860

14mm Pitch 55-SPK2-IDL
PowerGrip GT2 85-SPK2-IDL

34S-14MGT-55

55

34

5.855

3.38

0.56

3.33

2.25

34S-14MGT-85

85

34

5.855

3.38

0.31

4.20

2.25

115

34

5.855

3.38

0.19

5.61

2.25

7720-1750

7720-1870
7720-1880

115-SPK2-IDL 34S-14MGT-115

H
(in)

0.56

J
(in)

4

-16

4

-16

4

-16

0.69

3.13

—

2.1

1-14

0.25

4.38

—

12.0

1-14

1.00

4.88

4.34

15.6

1-14

1.00

4.88

4.34

16.7

1-14

1.09

4.88

4.34

23.1

—

2.75

Wt.
(lb)

—

—
—

1.1
2.0

NOTE: Stock idler sprockets are not available for 85mm wide, 8mm pitch or 170mm wide, 14mm pitch PowerGrip GT2 belt drives. If
idlers are required due to belt drive geometry, redesign the drive to use narrower belt drive components.

R

The Driving Force in Power Transmission.

Page 125

Sprocket Specification Tables
5mm Pitch Sprocket Diameters
No.
Diameters
of
P.D.
Grooves
28.65
18
1.128
30.24
19
1.191
31.83
20
1.253
33.42
21
1.316
35.01
22
1.379
36.61
23
1.441
38.20
24
1.504
39.79
25
1.566
41.38
26
1.629
42.97
27
1.692
44.56
28
1.754
46.15
29
1.817
47.75
30
1.880
49.34
31
1.942
50.93
32
2.005
52.52
33
2.068
54.11
34
2.130
55.70
35
2.193
57.30
36
2.256
58.89
37
2.318
60.48
38
2.381
62.07
39
2.444
63.66
40
2.506
65.25
41
2.569
66.85
42
2.632
68.44
43
2.694
70.03
44
2.757
71.62
45
2.820
73.21
46
2.882

mm
(in)
O.D.
27.51
1.083
29.10
1.146
30.69
1.208
32.28
1.271
33.87
1.334
35.47
1.396
37.06
1.459
38.65
1.521
40.24
1.584
41.83
1.647
43.42
1.709
45.01
1.772
46.61
1.835
48.20
1.897
49.79
1.960
51.38
2.023
52.97
2.085
54.56
2.148
56.16
2.211
57.75
2.273
59.34
2.336
60.93
2.399
62.52
2.461
64.11
2.524
65.71
2.587
67.30
2.649
68.89
2.712
70.48
2.775
72.07
2.837

No.
Diameters
of
P.D.
Grooves
74.80
47
2.945
76.39
48
3.008
77.99
49
3.070
79.58
50
3.133
81.17
51
3.196
82.76
52
3.258
84.35
53
3.321
85.94
54
3.384
87.54
55
3.446
89.13
56
3.509
90.72
57
3.572
92.31
58
3.634
93.90
59
3.697
95.49
60
3.760
97.08
61
3.822
98.68
62
3.885
100.27
63
3.948
101.86
64
4.010
103.45
65
4.073
105.04
66
4.136
106.63
67
4.198
108.23
68
4.261
109.82
69
4.324
111.41
70
4.386
113.00
71
4.449
114.59
72
4.511
116.18
73
4.574
117.77
74
4.637
119.37
75
4.699

mm
(in)

No.
Diameters
of
P.D.
Grooves
120.96
76
4.762
122.55
77
4.825
124.14
78
4.887
125.73
79
4.950
127.32
80
5.013
128.92
81
5.075
130.51
82
5.138
132.10
83
5.201
133.69
84
5.263
135.28
85
5.326
136.87
86
5.389
138.46
87
5.451
140.06
88
5.514
141.65
89
5.577
143.24
90
5.639
144.83
91
5.702
146.42
92
5.765
148.01
93
5.827
149.61
94
5.890
151.20
95
5.953
152.79
96
6.015
154.38
97
6.078
155.97
98
6.141
157.56
99
6.203
159.15
100
6.266
160.75
101
6.329
162.34
102
6.391
163.93
103
6.454
165.52
104
6.517

O.D.
73.66
2.900
75.25
2.963
76.85
3.025
78.44
3.088
80.03
3.151
81.62
3.213
83.21
3.276
84.80
3.339
86.40
3.401
87.99
3.464
89.58
3.527
91.17
3.589
92.76
3.652
94.35
3.715
95.94
3.777
97.54
3.840
99.13
3.903
100.72
3.965
102.31
4.028
103.90
4.091
105.49
4.153
107.09
4.216
108.68
4.279
110.27
4.341
111.86
4.404
113.45
4.466
115.04
4.529
116.63
4.592
118.23
4.654

mm
(in)
O.D.
119.82
4.717
121.41
4.780
123.00
4.842
124.59
4.905
126.18
4.968
127.78
5.030
129.37
5.093
130.96
5.156
132.55
5.218
134.14
5.281
135.73
5.344
137.32
5.406
138.92
5.469
140.51
5.532
142.10
5.594
143.69
5.657
145.28
5.720
146.87
5.782
148.47
5.845
150.06
5.908
151.65
5.970
153.24
6.033
154.83
6.096
156.42
6.158
158.01
6.221
159.61
6.284
161.20
6.346
162.79
6.409
164.38
6.472

No.
Diameters
of
P.D.
Grooves
167.11
105
6.579
168.70
106
6.642
170.30
107
6.705
171.89
108
6.767
173.48
109
6.830
175.07
110
6.893
176.66
111
6.955
178.25
112
7.018
179.85
113
7.081
181.44
114
7.143
183.03
115
7.206
184.62
116
7.268
186.21
117
7.331
187.80
118
7.394
189.39
119
7.456
190.99
120
7.519
192.58
121
7.582
194.17
122
7.644
195.76
123
7.707
197.35
124
7.770
198.94
125
7.832
200.54
126
7.895
202.13
127
7.958
203.72
128
8.020
205.31
129
8.083
206.90
130
8.146
208.49
131
8.208
210.08
132
8.271
211.68
133
8.334

See Page 116 for sprocket O.D. tolerances.

Page 126

R

The Gates Rubber Company

mm
(in)
O.D.
165.97
6.534
167.56
6.597
169.16
6.660
170.75
6.722
172.34
6.785
173.93
6.848
175.52
6.910
177.11
6.973
178.71
7.036
180.30
7.098
181.89
7.161
183.48
7.223
185.07
7.286
186.66
7.349
188.25
7.411
189.85
7.474
191.44
7.537
193.03
7.599
194.62
7.662
196.21
7.725
197.80
7.787
199.40
7.850
200.99
7.913
202.58
7.975
204.17
8.038
205.76
8.101
207.35
8.163
208.94
8.226
210.54
8.289

No.
Diameters
of
P.D.
Grooves
213.27
134
8.396
214.86
135
8.459
216.45
136
8.522
218.04
137
8.584
219.63
138
8.647
221.23
139
8.710
222.82
140
8.772
224.41
141
8.835
226.00
142
8.898
227.59
143
8.960
229.18
144
9.023
230.77
145
9.086
232.37
146
9.148
233.96
147
9.211
235.55
148
9.274
237.14
149
9.336
238.73
150
9.399
240.32
151
9.462
241.92
152
9.524
243.51
153
9.587
245.10
154
9.650
246.69
155
9.712
248.28
156
9.775
249.87
157
9.838
251.46
158
9.900
253.06
159
9.963
254.65
160
10.026

mm
(in)
O.D.
212.13
8.351
213.72
8.414
215.31
8.477
216.90
8.539
218.49
8.602
220.09
8.665
221.68
8.727
223.27
8.790
224.86
8.853
226.45
8.915
228.04
8.978
229.63
9.041
231.23
9.103
232.82
9.166
234.41
9.229
236.00
9.291
237.59
9.354
239.18
9.417
240.78
9.479
242.37
9.542
243.96
9.605
245.55
9.667
247.14
9.730
248.73
9.793
250.32
9.855
251.92
9.918
253.51
9.981

Sprocket Specification Tables
8mm Pitch Sprocket Diameters
No.
Diameters
of
P.D.
Grooves
56.02
22
2.206
58.57
23
2.306
61.12
24
2.406
63.66
25
2.506
66.21
26
2.607
68.75
27
2.707
71.30
28
2.807
73.85
29
2.907
76.39
30
3.008
78.94
31
3.108
81.49
32
3.208
84.03
33
3.308
86.58
34
3.409
89.13
35
3.509
91.67
36
3.609
94.22
37
3.709
96.77
38
3.810
99.31
39
3.910
101.86
40
4.010
104.41
41
4.110
106.95
42
4.211
109.50
43
4.311
112.05
44
4.411
114.59
45
4.511
117.14
46
4.612
119.68
47
4.712
122.23
48
4.812
124.78
49
4.912
127.32
50
5.013
129.87
51
5.113
132.42
52
5.213
134.96
53
5.314
137.51
54
5.414
140.06
55
5.514

mm
(in)
O.D.
54.65
2.152
57.20
2.252
59.74
2.352
62.29
2.452
64.84
2.553
67.38
2.653
69.93
2.753
72.48
2.853
75.02
2.954
77.57
3.054
80.12
3.154
82.66
3.254
85.21
3.355
87.76
3.455
90.30
3.555
92.85
3.655
95.39
3.756
97.94
3.856
100.49
3.956
103.03
4.056
105.58
4.157
108.13
4.257
110.67
4.357
113.22
4.457
115.77
4.558
118.31
4.658
120.86
4.758
123.41
4.858
125.95
4.959
128.50
5.059
131.05
5.159
133.59
5.259
136.14
5.360
138.68
5.460

mm
(in)

No.
Diameters
of
P.D.
Grooves
142.60
56
5.614
145.15
57
5.715
147.70
58
5.815
150.24
59
5.915
152.79
60
6.015
155.34
61
6.116
157.88
62
6.216
160.43
63
6.316
162.97
64
6.416
165.52
65
6.517
168.07
66
6.617
170.61
67
6.717
173.16
68
6.817
175.71
69
6.918
178.25
70
7.018
180.80
71
7.118
183.35
72
7.218
185.89
73
7.319
188.44
74
7.419
190.99
75
7.519
193.53
76
7.619
196.08
77
7.720
198.63
78
7.820
201.17
79
7.920
203.72
80
8.020
206.26
81
8.121
208.81
82
8.221
211.36
83
8.321
213.90
84
8.421
216.45
85
8.522
219.00
86
8.622
221.54
87
8.722
224.09
88
8.822
226.64
89
8.923

O.D.
141.23
5.560
143.78
5.660
146.32
5.761
148.87
5.861
151.42
5.961
153.96
6.062
156.51
6.162
159.06
6.262
161.60
6.362
164.15
6.463
166.70
6.563
169.24
6.663
171.79
6.763
174.34
6.864
176.88
6.964
179.43
7.064
181.97
7.164
184.52
7.265
187.07
7.365
189.61
7.465
192.16
7.565
194.71
7.666
197.25
7.766
199.81
7.866
202.35
7.966
2.4.89
8.067
207.44
8.167
209.99
8.267
212.53
8.367
215.08
8.468
217.63
8.568
220.17
8.668
222.72
8.768
225.27
8.869

No.
Diameters
of
P.D.
Grooves
229.18
90
9.023
231.73
91
9.123
234.28
92
9.223
236.82
93
9.324
239.37
94
9.424
241.92
95
9.524
244.46
96
9.624
247.01
97
9.725
249.55
98
9.825
252.10
99
9.925
254.65
100
10.025
257.19
101
10.126
259.74
102
10.226
262.29
103
10.326
264.83
104
10.427
267.38
105
10.527
269.93
106
10.628
272.47
107
10.728
275.02
108
10.828
277.57
109
10.928
280.11
110
11.028
282.66
111
11.128
285.21
112
11.229
287.75
113
11.329
290.30
114
11.429
292.85
115
11.529
295.39
116
11.630
297.94
117
11.730
300.48
118
11.830
303.03
119
11.930
305.58
120
12.031
308.12
121
12.131
310.67
122
12.231
313.22
123
12.331

mm
(in)
O.D.
227.81
8.969
230.36
9.069
232.90
9.169
235.45
9.270
238.00
9.370
240.54
9.470
243.09
9.570
245.64
9.671
248.18
9.771
250.73
9.871
253.28
9.971
255.82
10.072
258.37
10.172
260.92
10.272
263.46
10.372
266.01
10.473
268.56
10.573
271.10
10.673
273.65
10.771
276.19
10.874
278.74
10.974
281.29
11.074
283.83
11.175
286.38
11.275
288.93
11.375
291.47
11.475
294.02
11.576
296.57
11.676
299.11
11.776
301.66
11.876
304.21
11.977
306.75
12.077
309.30
12.177
311.85
12.277

No.
Diameters
of
P.D.
Grooves
315.76
124
12.432
318.31
125
12.532
320.86
126
12.632
323.41
127
12.733
325.95
128
12.833
328.50
129
12.933
331.04
130
13.033
333.59
131
13.133
336.14
132
13.234
338.68
133
13.334
341.23
134
13.434
343.77
135
13.534
346.32
136
13.635
348.87
137
13.735
351.41
138
13.835
353.96
139
13.935
356.51
140
14.036
359.05
141
14.136
361.60
142
14.236
364.15
143
14.336
366.69
144
14.437
369.24
145
14.537
371.79
146
14.637
374.33
147
14.737
376.88
148
14.838
379.43
149
14.938
381.97
150
15.038
384.52
151
15.138
387.06
152
15.239
389.61
153
15.339
392.16
154
15.439
394.70
155
15.510
397.25
156
15.640
399.80
157
15.740

mm
(in)
O.D.
314.39
12.378
316.94
12.478
319.48
12.578
322.03
12.678
324.58
12.779
327.12
12.879
329.67
12.979
332.22
13.079
334.76
13.180
337.31
13.280
339.86
13.380
342.40
13.480
344.95
13.581
347.50
13.681
350.04
13.781
352.59
13.881
355.14
13.982
357.68
14.082
360.23
14.182
362.77
14.282
365.32
14.383
367.87
14.483
370.41
14.583
372.96
14.683
375.51
14.784
378.05
14.884
380.60
14.984
353.15
15.084
385.70
15.185
388.24
15.285
390.79
15.385
393.33
15.486
395.88
15.586
398.43
15.686

No.
Diameters
of
P.D.
Grooves
402.34
158
15.840
404.89
159
15.941
407.44
160
16.041
409.98
161
16.141
412.53
162
16.241
415.08
163
16.342
417.62
164
16.442
420.17
165
16.542
422.72
166
16.642
425.26
167
16.743
427.81
168
16.843
430.35
169
16.943
432.90
170
17.043
435.45
171
17.144
437.99
172
17.244
440.54
173
17.344
443.09
174
17.444
445.63
175
17.544
448.18
176
17.645
450.73
177
17.745
453.27
178
17.845
455.82
179
17.946
458.37
180
18.046
460.91
181
18.146
463.46
182
18.246
466.01
183
18.347
468.55
184
18.447
471.10
185
18.547
473.65
186
18.647
476.19
187
18.748
478.74
188
18.848
481.28
189
18.948
483.83
190
19.048
486.38
191
19.149

mm
(in)
O.D.
400.97
15.786
403.52
15.887
406.07
15.987
408.61
16.087
411.16
16.187
413.70
16.288
416.25
16.388
418.80
16.488
421.34
16.588
423.89
16.689
426.44
16.789
428.98
16.889
431.53
16.989
434.08
17.090
436.62
17.190
439.17
17.290
441.72
17.390
444.26
17.491
446.81
17.591
449.36
17.691
451.90
17.791
454.45
17.892
456.99
17.992
459.54
18.092
462.09
18.192
464.63
18.293
467.18
18.393
469.73
18.493
472.27
18.593
474.82
18.694
477.37
18.794
479.91
18.894
482.46
18.994
485.01
19.095

See Page 116 for sprocket O.D. Tolerances.

R

The Driving Force in Power Transmission.

Page 127

Sprocket Specification Tables
14mm Pitch Sprocket Diameters
No.
Diameters
of
P.D.
Grooves
124.78
28
4.912
129.23
29
5.088
133.69
30
5.263
138.15
31
5.439
142.60
32
5.614
147.06
33
5.790
151.52
34
5.965
155.98
35
6.141
160.43
36
6.316
164.88
37
6.492
169.34
38
6.667
173.80
39
6.842
178.25
40
7.018
182.71
41
7.193
187.17
42
7.369
191.62
43
7.544
196.08
44
7.720
200.53
45
7.895
204.99
46
8.071
209.45
47
8.246
213.90
48
8.421
218.36
49
8.597
222.82
50
8.772
227.27
51
8.948
231.73
52
9.123
236.19
53
9.299
240.64
54
9.474
245.10
55
9.650
249.55
56
9.825
254.01
57
10.000
258.47
58
10.176
262.92
59
10.351
267.38
60
10.527
271.84
61
10.702
276.29
62
10.878
280.75
63
11.053
285.21
64
11.229

mm
(in)
O.D.
121.98
4.802
126.44
4.978
130.90
5.153
135.35
5.329
139.81
5.504
144.27
5.680
148.72
5.855
153.18
6.031
157.63
6.206
162.09
6.382
166.55
6.557
171.00
6.732
175.46
6.908
179.92
7.083
184.37
7.259
188.83
7.434
193.28
7.610
197.74
7.785
202.20
7.961
206.65
8.136
211.11
8.311
215.57
8.487
220.02
8.662
224.48
8.838
228.94
9.013
233.39
9.189
237.85
9.364
242.30
9.540
246.76
9.715
251.22
9.890
255.67
10.066
260.13
10.241
264.59
10.417
269.04
10.592
273.50
10.768
277.95
10.943
282.41
11.119

No.
Diameters
of
P.D.
Grooves
289.66
65
11.404
294.12
66
11.579
298.57
67
11.755
303.03
68
11.930
307.49
69
12.106
311.94
70
12.281
316.40
71
12.457
320.86
72
12.632
325.31
73
12.808
329.77
74
12.983
334.22
75
13.158
338.68
76
13.334
343.14
77
13.509
347.59
78
13.685
352.05
79
13.860
356.51
80
14.036
360.96
81
14.211
365.42
82
14.387
369.88
83
14.562
374.33
84
14.737
378.79
85
14.913
383.24
86
15.068
387.70
87
15.264
392.16
88
15.439
396.61
89
15.615
401.07
90
15.790
405.53
91
15.966
409.98
92
16.141
414.44
93
16.316
418.90
94
16.492
423.35
95
16.667
427.81
96
16.843
432.26
97
17.018
436.72
98
17.194
441.18
99
17.369
445.63
100
17.545
450.09
101
17.720

mm
(in)

No.
Diameters
of
P.D.
Grooves
454.55
102
17.895
459.00
103
18.071
463.46
104
18.246
467.92
105
18.422
472.37
106
18.597
476.83
107
18.773
481.28
108
18.948
485.74
109
19.124
490.20
110
19.299
494.65
111
19.475
499.11
112
19.650
503.57
113
19.825
508.2
114
20.001
512.48
115
20.176
516.93
116
20.352
521.39
117
20.527
525.85
118
20.703
530.30
119
20.878
534.76
120
21.054
539.22
121
21.229
543.67
122
21.404
548.13
123
21.580
552.59
124
21.755
557.04
125
21.931
561.50
126
22.106
565.95
127
22.282
570.41
128
22.457
574.87
129
22.633
579.32
130
22.808
583.78
131
22.983
588.24
132
23.159
592.69
133
23.334
597.15
134
23.510
601.61
135
23.685
606.06
136
23.861
610.52
137
24.036
614.97
138
24.212

O.D.
286.87
11.294
291.32
11.469
295.78
11.645
300.24
11.820
304.69
11.996
309.15
12.171
313.61
12.347
318.06
12.522
322.52
12.698
326.97
12.873
331.43
13.048
335.89
13.224
340.34
13.399
344.80
13.575
349.26
13.750
353.71
13.926
358.17
14.101
362.63
14.277
367.08
14.452
371.54
14.627
375.99
14.803
380.45
14.978
384.91
15.154
389.36
15.329
393.82
15.505
398.28
15.680
402.73
15.856
407.19
16.031
411.64
16.206
416.10
16.382
420.56
16.557
425.01
16.733
429.47
16.908
433.93
17.084
438.38
17.259
442.84
17.435
447.30
17.610

mm
(in)
O.D.
451.75
17.785
456.21
17.961
460.66
18.136
465.12
18.312
469.58
18.487
474.03
18.663
478.49
18.838
482.95
19.014
487.40
19.189
491.86
19.365
496.32
19.540
500.77
19.715
505.23
19.891
509.68
20.056
514.14
20.242
518.60
20.417
523.05
20.593
527.51
20.768
531.97
20.944
536.42
21.119
540.88
21.294
545.34
21.470
549.79
21.645
554.25
21.821
558.70
21.996
563.16
22.172
567.62
22.347
572.07
22.523
576.53
22.689
580.99
22.873
585.44
23.049
589.90
23.224
594.35
23.400
598.81
23.575
603.27
23.751
607.72
23.926
612.18
24.102

No.
Diameters
of
P.D.
Grooves
619.43
139
24.387
623.89
140
24.562
628.34
141
24.738
632.80
142
24.913
637.26
143
25.089
641.71
144
25.264
646.17
145
25.440
650.63
146
25.615
655.08
147
25.791
659.54
148
25.966
663.99
149
26.141
668.45
150
26.317
672.91
151
26.492
677.36
152
26.668
681.82
153
26.843
686.28
154
27.019
690.73
155
27.194
695.19
156
27.370
699.64
157
27.545
704.10
158
27.720
708.56
159
27.896
713.01
160
28.071
717.47
161
28.247
721.93
162
28.422
726.38
163
28.598
730.84
164
28.773
735.30
165
28.949
739.75
166
29.124
744.21
167
29.299
748.66
168
29.475
753.12
169
29.650
757.58
170
29.826
762.03
171
30.001
766.49
172
30.177
770.95
173
30.352
775.40
174
30.528
779.86
175
30.703

See Page 116 for sprocket O.D. tolerances.

Page 128

R

The Gates Rubber Company

mm
(in)
O.D.
616.64
24.277
621.09
24.452
625.55
24.628
630.01
24.803
634.46
24.979
638.92
25.154
643.37
25.330
647.83
25.505
652.29
25.681
656.74
25.856
661.20
26.031
665.66
26.207
670.11
26.382
674.57
26.558
679.03
26.733
683.48
26.909
687.94
27.084
692.39
27.260
696.85
27.435
701.31
27.610
705.76
27.786
710.22
27.961
714.68
28.137
719.13
28.312
723.59
28.488
728.05
28.663
782.50
28.839
736.96
29.014
741.41
29.189
745.87
29.365
750.33
29.540
754.78
29.716
759.24
29.891
763.70
30.067
768.15
30.242
772.61
30.418
777.06
30.593

No.
Diameters
of
P.D.
Grooves
784.32
176
30.878
788.77
177
31.054
793.23
178
31.228
797.68
179
31.405
802.14
180
31.580
806.60
181
31.756
811.05
182
31.931
815.51
183
32.107
819.97
184
32.252
824.42
185
32.458
828.88
186
32.633
833.33
187
32.808
837.79
188
32.954
842.25
189
33.159
846.70
190
33.335
851.16
191
33.510
855.62
192
33.686
860.07
193
33.861
864.53
194
34.037
868.98
195
34.212
873.44
196
34.387
877.90
197
34.553
882.35
198
34.738
886.81
199
34.914
891.27
200
35.089
895.72
201
35.265
900.18
202
35.440
904.64
203
35.616
909.09
204
35.791
913.55
205
35.966
918.00
206
36.142
922.46
207
36.317
926.92
208
36.493
931.37
209
36.668
935.83
210
36.844
940.29
211
37.019
944.74
212
37.195

mm
(in)
O.D.
781.52
30.768
785.98
30.944
790.43
31.119
794.89
31.295
799.35
31.470
803.80
31.646
808.26
31.821
812.72
31.997
817.17
32.172
821.63
32.348
826.08
32.523
830.54
32.698
835.00
32.874
839.45
33.049
843.91
33.225
848.37
33.400
852.82
33.576
857.28
33.751
861.75
33.927
866.44
34.112
870.64
34.277
875.11
34.453
879.55
34.628
884.02
34.804
888.47
34.979
892.94
35.155
897.38
35.330
901.85
35.506
906.30
35.681
910.74
35.856
915.21
36.032
919.66
36.207
924.13
36.383
928.57
36.558
933.04
36.734
937.49
36.909
941.96
37.085

Sprocket Specification Tables
20mm Pitch Sprocket Diameters
No.
Diameters
of
P.D.
Grooves
216.45
34
8.522
222.82
35
8.772
229.18
36
9.023
235.55
37
9.274
241.92
38
9.524
248.28
39
9.775
254.65
40
10.026
261.01
41
10.276
267.38
42
10.527
273.75
43
10.777
280.11
44
11.028
286.48
45
11.279
292.85
46
11.529
299.21
47
11.780
305.58
48
12.031
311.94
49
12.281
318.31
50
12.532
324.68
51
12.763
331.04
52
13.033
337.41
53
13.284
343.77
54
13.534
350.14
55
13.785
356.51
56
14.036
362.87
57
14.286
369.24
58
14.537
375.61
59
14.788
381.97
60
15.038
388.34
61
15.289
394.70
62
15.540
401.07
63
15.790
407.44
64
16.041
413.80
65
16.291
420.17
66
16.542
426.54
67
16.793
432.90
68
17.043
439.27
69
17.299

mm
(in)
O.D.
212.13
8.352
218.50
8.602
224.87
8.853
231.23
9.104
237.60
9.354
243.96
9.605
250.33
9.855
256.70
10.106
263.06
10.357
269.43
10.607
275.79
10.858
282.16
11.109
288.53
11.469
294.89
11.610
301.26
11.861
307.63
12.111
313.99
12.362
320.36
12.613
326.72
12.863
333.09
13.114
339.46
13.364
345.82
13.615
352.19
13.856
358.56
14.116
364.92
14.367
371.29
14.618
377.65
14.868
384.02
15.119
390.39
15.370
396.75
15.620
403.12
15.871
409.48
16.121
415.85
16.372
422.22
16.623
428.58
16.873
434.95
17.124

mm
(in)

No.
Diameters
of
P.D.
Grooves
445.63
70
17.545
452.00
71
17.795
458.37
72
18.046
464.73
73
18.297
471.10
74
18.547
477.46
75
18.798
483.83
76
19.048
490.20
77
19.299
496.56
78
19.550
502.93
79
19.800
509.30
80
20.051
515.66
81
20.302
522.03
82
20.552
528.39
83
20.803
534.76
84
21.054
541.13
85
21.304
547.49
86
21.555
553.86
87
21.805
560.23
88
22.056
566.59
89
22.307
572.96
90
22.557
579.32
91
22.808
585.69
92
23.059
592.06
93
23.309
598.42
94
23.560
604.72
95
23.811
611.15
96
24.061
617.52
97
24.312
623.89
98
24.562
630.25
99
24.813
636.62
100
25.064
642.99
101
25.314
649.35
102
25.565
655.72
103
25.816
662.08
104
26.066
668.45
105
26.317

O.D.
441.32
17.375
447.68
17.625
454.05
17.876
460.41
18.127
466.78
18.377
473.15
18.628
479.51
18.878
485.88
19.129
492.25
19.380
498.61
19.630
504.98
19.881
511.34
20.132
517.71
20.382
524.08
20.633
530.44
20.884
536.81
21.134
543.18
21.385
549.54
21.635
555.91
21.886
562.27
22.137
568.64
22.387
575.01
22.638
581.37
22.889
587.74
23.139
594.10
23.390
600.47
23.641
606.84
23.891
613.20
24.142
619.57
24.392
625.94
24.643
632.30
24.894
638.67
25.144
645.03
25.395
651.40
25.646
657.77
25.896
664.13
26.147

No.
Diameters
of
P.D.
Grooves
674.82
106
26.568
681.18
107
26.818
687.55
108
27.069
693.92
109
27.320
700.28
110
27.570
706.65
111
27.821
713.01
112
28.071
719.38
113
28.322
725.75
114
28.573
732.11
115
28.823
738.48
116
29.074
744.85
117
29.325
751.21
118
29.575
757.58
119
29.826
763.94
120
30.077
770.31
121
30.327
776.68
122
30.578
783.04
123
30.828
789.41
124
31.079
795.77
125
31.330
805.14
126
31.580
808.51
127
31.831
814.87
128
32.082
821.24
129
32.332
827.61
130
32.583
833.97
131
32.834
840.34
132
33.084
846.70
133
33.335
853.07
134
33.585
859.44
135
33.836
865.80
136
34.087
872.17
137
34.337
878.54
138
34.588
884.90
139
34.839
891.27
140
35.089
897.63
141
35.340

mm
(in)
O.D.
670.50
26.398
676.87
26.648
683.23
26.899
689.60
27.150
695.96
27.400
702.33
27.651
708.70
27.901
715.06
28.152
721.43
28.403
727.79
28.653
734.16
28.904
740.53
29.155
746.89
29.405
753.26
29.656
759.63
29.907
765.99
30.157
772.36
30.408
778.72
30.658
785.09
30.909
791.46
31.160
797.82
31.410
804.19
31.661
810.56
31.912
816.92
32.162
823.29
32.413
829.65
32.664
836.02
32.914
842.39
33.165
848.75
33.415
885.12
33.666
861.48
33.917
867.85
34.167
874.22
34.418
880.58
34.669
886.95
34.919
893.32
35.170

No.
Diameters
of
P.D.
Grooves
904.00
142
35.591
910.37
143
35.841
916.73
144
36.092
923.10
145
36.342
929.46
146
36.593
935.83
147
36.84
942.20
148
37.094
948.56
149
37.345
954.93
150
37.596
961.30
151
37.846
967.66
152
38.097
974.03
153
38.348
980.39
154
38.598
986.76
155
38.849
993.13
156
39.099
999.49
157
39.350
1005.86
158
39.601
1012.23
159
39.851
1018.59
160
40.102
1024.96
161
40.353
1031.32
162
40.603
1037.69
163
40.854
1044.06
164
41.105
1050.42
165
41.355
1056.79
166
41.606
1063.16
167
41.856
1069.52
168
42.107
1075.89
169
42.358
1082.25
170
42.608
1088.62
171
42.859
1094.99
172
43.110
1101.35
173
43.350
1107.72
174
43.611
1114.08
175
43.862
1120.45
176
44.112
1126.82
177
44.363

mm
(in)
O.D.
899.68
35.421
906.05
35.671
912.41
35.922
918.78
36.172
925.15
36.423
931.51
36.674
937.88
36.924
944.25
37.175
950.61
37.426
956.98
37.676
963.34
37.927
969.71
38.178
976.08
38.428
982.44
38.679
988.81
38.929
995.18
39.180
1001.54
39.431
1007.91
39.681
1014.27
39.932
1020.64
40.183
1027.01
40.433
1033.37
40.684
1039.74
40.935
1046.10
41.185
1052.47
41.436
1058.34
41.686
1065.20
41.937
1071.57
42.188
1077.94
42.438
1084.30
42.689
1090.67
42.940
1097.03
43.190
1103.40
43.441
1109.77
43.692
1116.13
43.942
1122.50
44.193

No.
Diameters
of
P.D.
Grooves
1133.18
178
44.614
1139.55
179
44.854
1145.92
180
45.115
1152.28
181
45.365
1158.65
182
45.616
1165.01
183
45.867
1171.38
184
46.117
1177.75
185
46.368
1184.11
186
46.619
1190.48
187
46.859
1196.85
188
47.120
1203.21
189
47.371
1209.58
190
47.621
1215.94
191
47.672
1222.31
192
48.122
1228.68
193
48.373
1235.04
194
48.624
1241.41
195
48.874
1247.77
196
49.125
1254.14
197
49.376
1260.51
198
49.626
1266.87
199
49.577
1273.24
200
50.128
1279.61
201
50.378
1285.97
202
50.629
1292.34
203
50.679
1298.70
204
51.130
1305.07
205
51.381
1311.44
206
51.631
1317.80
207
51.882
1324.17
208
52.133
1330.54
209
52.383
1336.90
210
52.634
1343.27
211
52.885
1349.63
212
53.135
1356.00
213
53.386

mm
(in)
O.D.
1128.87
44.444
1135.23
44.694
1141.60
44.945
1147.96
45.195
1154.33
45.446
1160.70
45.697
1167.06
45.947
1173.43
46.198
1179.79
46.449
1186.16
46.699
1192.53
46.950
1198.89
47.201
1205.26
47.451
1211.63
47.702
1217.99
47.952
1224.36
48.203
1230.72
48.454
1237.09
48.704
1243.46
48.955
1249.82
49.206
1256.19
49.456
1262.56
49.707
1268.92
49.958
1275.29
50.208
1281.65
50.459
1288.02
50.709
1294.39
50.960
1300.75
51.211
1307.12
51.461
1313.48
51.712
1319.85
51.963
1326.22
52.213
1332.58
62.464
1338.95
52.715
1345.32
52.965
1351.68
53.216

See Page 116 for sprocket O.D. tolerances.

R

The Driving Force in Power Transmission.

Page 129

ENGINEERING DATA
NOTE: This engineering section provides general engineering information for synchronous belts and sprockets (or pulleys) which
are useful in general drive design work. Where we refer to sprockets (for PowerGrip GT2 belts), you can substitute pulleys for
PowerGrip Timing Belts. If you need additional information, contact Gates Power Transmission Product Application.

Section I
Application Design Considerations
When designing synchronous drives, there are several special circumstances that may require additional consideration:
1. Gear Motors/ Speed Reducer Drives
2. Electric Motor Frame Dimensions
3. Minimum Sprocket Diameter Recommendations
for Electric Motors

Overhung load calculations are generally assumed to apply
to the slower output shaft of a speed reducer. It is important to note that these calculations apply to higher speed
input shafts as well.

4. High-Driven Inertia
5. Air Moving Drives
6. Linear Motion Drives
7. High Performance Applications

Most speed reducer manufacturers publish allowable overhung load values for every model in their product line. This
value represents the maximum load that the shaft and bearings can support without negatively impacting the durability
of the speed reducer. When the actual overhung load
exceeds the published allowable value, premature shaft or
bearing failure may occur. In extreme cases, catastrophic
failures can occur.

8. Belt Drive Registration
9. Belt Drive Noise
10. Use of Flanged Sprockets
11. Fixed (Nonadjustable) Center Distance
12. Use of Idlers
13. Minimum Belt Wrap and Tooth Engagement
14. Adverse Operating Environments
Each of these circumstances and special considerations are
reviewed below.

1. Gear Motors/ Speed Reducer Drives
When designing a belt drive system to transfer power from
the output shaft of a speed reducer to the final driven shaft,
the designer must make certain that the belt drive does not
exert shaft loads greater than the speed reducing device is
rated to carry. Failure to do so can result in premature
shaft/ bearing failures whether the belt drive has been
designed with the appropriate power capacity or not.
This concept is similar to the National Electric Motor
Association (NEMA) establishing minimum acceptable
sprocket diameters for each of their standardized motor
frames. Abiding by these minimum recommended diameters, when designing a belt drive system, prevents the
motor bearings from failing prematurely due to excessive
shaft loads exerted by the belt drive.
Overhung load is generally defined as a force exerted by a
belt or chain drive, that is perpendicular to a speed reducer
shaft, and applied beyond its outermost bearing. Calculated
overhung load values are intended to serve as an indication
of how heavily loaded the shaft and outermost bearing of a
speed reducer actually is.

Page 130

Figure 3 - Overhung Load

A general formula used to calculate overhung load (OHL) is
as follows:
OHL = 126,000 x HP x kLCF x KSF x KLLF
PD X RPM
Where: HP = Actual horsepower being transmitted at the
gear motor/reducer output shaft with no service factor applied
KLCF = Overhung load connection factor (1.3 for all
synchronous belt drives)
KSF = Service factor for the speed reducer (available from the manufacturer)
KLLF = Load location factor for the speed reducer
(available from the manufacturer)
PD = Pitch diameter of the speed reducer output
shaft sprocket
RPM = RPM of the speed reducer output shaft
Speed reducer manufacturers each publish their own specific formula and constants to calculate overhung load. They
also publish specific overhung load ratings for each speed
reducer product that they produce. It is very important to
use the correct overhung load calculation procedure in conjunction with the manufacturer’s accompanying overhung
load rating.

The Gates Rubber Company

If the calculated overhung load for a particular belt drive
system does exceed the speed reducer manufacturer’s
maximum recommended value, consider altering the belt
drive design. In order to reduce the calculated overhung
load, consider:

Shaft
Length
Min.

Shaft
Dia.

• Increasing sprocket diameters
• Reducing belt width
• Mounting the sprocket closer to the speed reducer
outboard bearing
Increasing the sprocket diameter not only reduces calculated overhung load, it also potentially reduces the required
belt width. Reducing the belt width and mounting the
sprocket as close as possible to the outermost bearing of
the speed reducer both move the center of the belt load
closer to the speed reducer. This also reduces the calculated overhung load. Alterations to the belt drive design
should be made until the calculated overhung load is within
the speed reducer manufacturer’s recommendations.

2. Electric Motor Frame Dimensions
Motor dimensions can be important considerations depending on the application and its requirements. If motor shaft
length, motor shaft diameter, or clearance issues are a concern, refer to the motor dimension table on this page. The
table lists common general purpose electric motors by
frame size.

Motor Frame Dimensions
Frame
Size

Shaft Dia. (in)

Shaft Length
Min. (in)

Key (in)

48
56

1/2
5/8

—
—

3/64 Flat
3/16 x 3/16 x 1-3/8

143T
145T

7/8
7/8

2
2

3/16 x 3/16 x 1-3/8
3/16 x 3/16 x 1-3/8

182
182T
184
184T

7/8
1-1/8
7/8
1-1/8

2
2-1/2
2
2-1/2

3/16 x 3/16 x 1-3/8
1/4 x 1/4 x 1-3/4
3/16 x 3/16 x 1-3/8
1/4 x 1/4 x 1-3/4

213
213T
215
215T

1-1/8
1-3/8
1-1/8
1-3/8

2-3/4
3-1/8
2-3/4
3-1/8

1/4 x 1/4 x 2
5/16 x 5/16 x 2-3/8
1/4 x 1/4 x 2
5/16 x 5/16 x 2-3/8

254U
254T
256U
256T

1-3/8
1-5/8
1-3/8
1-5/8

3-1/2
3-3/4
3-1/2
3-3/4

5/16 x 5/16 x 2-3/4
3/8 x 3/8 x 2-7/8
5/16 x 5/16 x 3-3/4
3/8 x 3/8 x 2-7/8

284U
284T
284TS
286U
286T
286TS

1-5/8
1-7/8
1-5/8
1-5/8
1-7/8
1-5/8

4-5/8
4-3/8
3
4-5/8
4-3/8
3

3/8
1/2
3/8
3/8
1/2
3/8

x
x
x
x
x
x

3/8
1/2
3/8
3/8
1/2
3/8

x
x
x
x
x
x

3-3/4
3-1/4
1-7/8
3-3/4
3-1/4
1-7/8

324U
324T
324TS
326U
326T
326TS

1-7/8
2-1/8
1-7/8
1-7/8
2-1/8
1-7/8

5-3/8
5
3-1/2
5-3/8
5
3-1/2

1/2
1/2
1/2
1/2
1/2
1/2

x
x
x
x
x
x

1/2
1/2
1/2
1/2
1/2
1/2

x
x
x
x
x
x

4-1/4
3-7/8
2
4-1/4
3-7/8
2

364U
364US
364T
364TS
365U
365US
365T
365TS

2-1/8
1-7/8
2-3/8
1-7/8
2-1/8
1-7/8
2-3/8
1-7/8

6-1/8
3-1/2
5-5/8
3-1/2
6-1/8
3-1/2
5-5/8
3-1/2

1/2
1/2
5/8
1/2
1/2
1/2
5/8
1/2

x 1/2 x 5
x1/2 x 2
x 5/8 x 4-1/4
x 1/2 x 2
x 1/2 x 5
x 1/2 x 2
x 5/8 x 4-1/4
x 1/2 x 2

404U
404US
404T
404TS
405U
405US
405T
405TS

2-3/8
2-1/8
2-7/8
2-1/8
2-3/8
2-1/8
2-7/8
2-1/8

6-7/8
4
7
4
6-7/8
4
7
4

5/8
1/2
3/4
1/2
5/8
1/2
3/4
1/2

x
x
x
x
x
x
x
x

5/8 x 5-1/2
4 x 2-3/4
3/4 x 5-5/8
1/2 x 2-3/4
5/8 x 5-1/2
1/2 x 2-3/4
3/4 x 5-5/8
1/2 x 2-3/4

444U
444US
444T
444TS
445U
445US
445T
445TS
447T
447TS
449T
449TS

2-7/8
2-1/8
3-3/8
2-3/8
2-7/8
2-1/8
3-3/8
2-3/8
3-3/8
2-3/8
3-3/8
2-3/8

8-3/8
4
8-1/4
4-1/2
8-3/8
4
8-1/4
4-1/2
8-1/4
4-1/2
8-1/4
4-1/2

3/4
1/2
7/8
5/8
3/4
1/2
7/8
5/8
7/8
5/8
7/8
5/8

x
x
x
x
x
x
x
x
x
x
x
x

3/4
1/2
7/8
5/8
3/4
1/2
7/8
5/8
7/8
5/8
7/8
5/8

The Driving Force in Power Transmission

x
x
x
x
x
x
x
x
x
x
x
x

7
2-3/4
6-7/8
3
7
2-3/4
6-7/8
3
6-7/8
3
6-7/8
3

Page 131

3. Minimum Sprocket Diameter
Recommendations for Electric Motors
Minimum Recommended Sprocket / Sheave Diameters
NEMA (The National Electric Manufacturers Association)
publishes recommendations for the minimum diameter of
sprockets and sheaves to be used on General Purpose
Electric Motors. The purpose of these recommendations is
to prevent the use of excessively small sprockets or
sheaves. This can result in motor shaft or bearing damage
since belt pull increases as the diameter is reduced.
Table data has been compiled from NEMA Standard MG-114-42; 11/78, MG-1-14-43; 1/68, and a composite of electric
motor manufacturers data. Values are generally conservative, and specific motors may permit the use of a smaller
sprocket or sheave. Consult the motor manufacturer.

Motor Frames and Minimum Diameters
for 60 Cycle Electric Motors
Horsepower at Synchronous Speed (rpm) Synchronous
Belts
3600
1800
1200
900
Min.
(3450)
(1750)
(1160)
(870)
Pitch
Dia. (in)

Motor
Frame
Code

Shaft
Dia.
(in)

143T
145T

0.875
0.875

1-1/2
2—3

1
1-1/2— 2

3/4
1

1/2
3/4

2.0
2.2

182T
182T

1.125
1.125

3
5

3
—

1-1/2
—

1
—

2.2
2.4

184T
184T
184T

1.125
1.125
1.125

—
5
7-1/2

—
—
5

2
—
—

1-1/2
—
—

2.2
2.2
2.7

213T

1.375

7-1/2—10

7-1/2

3

2

2.7

215T
215T

1.375
1.375

10
15

—
10

5
—

3
—

2.7
3.4

254T
254T

1.625
1.625

15
20

—
15

7-1/2
—

5
—

3.4
4.0

256T
256T

1.625
1.625

20—25
—

—
20

10
—

7-1/2
—

4.0
4.0

284T
284T

1.875
1.875

—
—

—
25

15
—

10
—

4.0
4.0

286T

1.875

—

30

20

15

4.7

324T

2.125

—

40

25

20

5.4

236T

2.125

—

50

30

25

6.1

364T
364T

2.375
2.375

—
—

—
60

40
—

30
—

6.1
6.7

365T
365T

2.375
2.375

—
—

—
75

50
—

40
—

7.4
7.7

404T
404T
404T

2.875
2.875
2.875

—
—
—

—
—
100

60
—
—

—
50
—

7.2
7.6
7.7

405T
405T
405T

2.875
2.875
2.875

—
—
—

—
100
125

75
—
—

60
—
—

9.0
7.7
9.5

444T
444T
444T
444T

3.375
3.375
3.375
3.375

—
—
—
—

—
—
125
150

100
—
—
—

—
75
—
—

9.0
8.6
9.5
9.5

445T
445T
445T
445T

3.375
3.375
3.375
3.375

—
—
—
—

—
—
150
200

125
—
—
—

—
100
—
—

10.8
10.8
9.5
11.9

Page 132

4. High-Driven Inertia
Many drives, such as piston compressors, punch presses
and crushers, depend on the driveN pulley acting as a flywheel. This flywheel effect, or WR2 is used to help moderate
or smooth out fluctuations in driven load and speed. Failure
to compensate for this during a redesign can result in premature damage to the prime mover or early belt failures.
This can be a consideration when replacing older belt drives
with new, higher capacity belts.
When replacing large pulleys or sheaves with sprockets, be
careful not to remove a designed-in flywheel effect. Ask
questions of the user to make sure there is not a concern
for a high WR2. If there is a concern, you may have to use a
wider sprocket, a larger diameter, or a special made-toorder sprocket designed with added weight and WR2.
Drives which have a high driveN inertia and are subjected
to high acceleration or emergency stop conditions require
additional design expertise. Contact Gates Power
Transmission Product Application for further engineering
assistance.

5. Air Moving Drives
HVAC Equipment Inspection
Many air handling drives have structures that are not particularly rigid, which can create belt tension and drive alignment problems resulting in unusual and premature belt
wear. Synchronous belts are sensitive to fluctuations in
center distance that can be caused by inadequate bracketry.
Under start up conditions, an AC motor can be required to
provide 150% to 200% of its rated capacity. Synchronous
belts cannot slip, and must transmit the higher start up
torque. Under these conditions, the drive center distance
may collapse if the structure is not sufficiently rigid.
With the drive shut off and safely locked out, a simple
method to use when inspecting potential drive conversions
is to grab the two belt spans and push them together while
observing the motor. If any significant relative change in
center distance or motor position is noticed, the drive’s
structural strength is most likely insufficient for a simple conversion. The structure would need to be reinforced to
obtain optimum performance from a synchronous belt drive.
The best conversion candidates have motors that are
mounted solidly on support bracketry that is part of the fan's
structural system. When possible, select synchronous
drives with diameters similar to existing V-belt sheave diameters. This will maintain similar belt pulls and loads on the
shafts and structure.

Air Handling Unit Start-Up Characteristics
Full Load Start Up
Start up loads can be a concern when evaluating potential
drives for conversion to synchronous belts. Synchronous
belts will transmit all of the start up torque, where V-belts
may slip if the load is excessive. Due to the inertia of the
fan, start up loads can potentially be 150% to 200% of the
normal operating load. It is important that the start up load
be considered by selecting appropriate service factors
when designing a belt drive system.

The Gates Rubber Company

Controlled Start Up
An air handling drive with soft start or variable frequency
controller (AC Inverter) is ideal for conversion to synchronous belts. The fan will be ramped up to speed slowly, with
a corresponding increase in load as the speed increases.
Structural flexing is typically not a concern when designing
synchronous belt drives on systems using soft starts or variable frequency controllers.
Fan Speed
The volume of air being transmitted and the required horsepower are both sensitive to changes in the driveN fan
speed. If designing a synchronous belt drive for energy
savings, it is important that the synchronous belt drive be
designed to operate at the proper driveN fan speed. All
conversions from existing V-belt drives should have the synchronous belt drive speed ratio based on a measured
driveN shaft RPM, and not calculated from the theoretical Vbelt speed ratio. This measurement can be made by either
using a mechanical contact tachometer or a strobe
tachometer.
The horsepower requirement for fans varies with the cube
of the fan speed. A small change in the fan speed makes a
much larger difference in the actual horsepower and energy
required.
HP1/HP2 = (RPM1/RPM2)3
Where: HP1
HP2

= Initial Horsepower
= New Horsepower @ New Fan RPM

Although special considerations may be involved, it is
important to remember that reasonable drive recommendations can be provided to the designer in most cases.

8. Belt Drive Registration
The three primary factors contributing to belt drive registration (or positioning) errors are belt elongation, backlash, and
tooth deflection. When evaluating the potential registration
capabilities of a synchronous belt drive, the system must
first be determined to be either static or dynamic in terms of
its registration function and requirements.
Static Registration: A static registration system moves
from its initial static position to a secondary static position.
During the process the designer is concerned only with how
accurately and consistently the drive arrives at its secondary position. Potential registration errors that occur during
transport are not considered. Therefore, the primary factor
contributing to registration error in a static registration system is backlash. The effects of belt elongation and tooth
deflection do not have any influence on the registration
accuracy of this type of system.
Dynamic Registration: A dynamic registration system is
required to perform a registering function while in motion
with torque loads varying as the system operates. In this
case, the designer is concerned with the rotational position
of the drive sprockets with respect to each other at every
point in time. Therefore, belt elongation, backlash, and tooth
deflection will all contribute to registrational inaccuracies.

RPM1 = Initial Fan RPM
Further discussion about each of the factors contributing to
registration error is as follows:

RPM2 = New Fan RPM

6. Linear Motion Drives
In linear motion drives, such as a rack and pinion application, the belt is not transmitting a load in the conventional
rotational manner. The two cut ends of the belt are connected to clamping fixtures and the belt travels back and
forth a specified distance while rotating over a sprocket.
Because of these characteristics, the drive design process
will typically not follow standard catalog design procedures.
The designer will most likely have available a maximum belt
load or pull which will need to be related to the belt's allowable working tension. Reasonably sized sprocket diameters
are still required to prevent excessive stress fatigue in the
belt. In these applications, the designer may either use
endless belts and cut them, or use standard long length
belting when available. Design information and belt clamping recommendations are included on pages 85 through 94,
PowerGrip Long Length Belting. Gates Power Transmission
Product Application may also be consulted for additional
design assistance.

7. High Performance Applications
For special high performance applications, such as motorcycles or race car and boat supercharger drives, the design
loads will typically exceed published data. Because of the
extremely high loads and speeds (as much as 500 HP and
belt speeds exceeding 10,000 fpm), it is necessary for the
designer to contact Gates Power Transmission Product
Application for additional assistance.

Belt Elongation: Belt elongation, or stretch, occurs naturally when a belt is placed under tension. The total tension
exerted within a belt results from installation as well as
working loads. The amount of belt elongation is a function of
the belt tensile modulus, which is influenced by the type of
tensile cord and the belt construction. The standard tensile
cord used in rubber synchronous belts is fiberglass.
Fiberglass has a high tensile modulus, is dimensionally stable, and has excellent flex-fatigue characteristics. If a higher
tensile modulus is needed in a rubber synchronous belt,
aramid tensile cords can be considered, although they are
generally used to provide resistance to harsh shock and
impulse loads. Aramid tensile cords used in rubber synchronous belts generally have only a marginally higher tensile
modulus in comparison to fiberglass. When needed, belt
tensile modulus data is available from Gates Power
Transmission Product Application.
Backlash: Backlash in a synchronous belt drive results
from clearance between the belt teeth and the sprocket
grooves. This clearance is needed to allow the belt teeth to
enter and exit the grooves smoothly with a minimum of
interference. The amount of clearance necessary depends
upon the belt tooth profile. PowerGrip® Timing Belt Drives
are known for having relatively little backlash. PowerGrip®
HTD® Drives have improved torque carrying capability and
resist ratcheting, but have a significant amount of backlash.
PowerGrip® GT2 Drives have considerably improved torque
carrying capability, and backlash characteristics in between
that of PowerGrip HTD and PowerGrip Timing Drives. In
special cases, alterations can be made to drive systems to

The Driving Force in Power Transmission

Page 133

further decrease backlash. These alterations often result in
increased belt wear, increased drive noise and shorter drive
life. Contact Gates Power Transmission Product Application
for additional information.
Tooth Deflection: Tooth deformation in a synchronous belt
drive occurs as a torque load is applied to the system, and
individual belt teeth are loaded. The amount of belt tooth
deformation depends upon the amount of torque loading,
sprocket size, installation tension and belt type. Of the three
primary contributors to registration error, tooth deflection is
the most difficult to quantify. Experimentation with a prototype drive system is the best means of obtaining realistic
estimations of belt tooth deflection.
Additional guidelines that may be useful in designing registration critical drive systems are as follows:
•
•
•
•

Design with large sprockets with more teeth in mesh.
Keep belts tight, and control tension closely.
Design frame/shafting to be rigid under load.
Use high quality machined sprockets to minimize
radial run out and lateral wobble.

9. Belt Drive Noise
Field experience on actual applications verifies that some
positive belt drives can produce some noise. The noise levels produced are typically greater than V-belts, and are
associated with tooth meshing characteristics. For the most
part, this noise is low level and will not exceed the level of
noise produced by the equipment it is used on or the surrounding environment of the equipment. Laboratory studies
(confirmed by field studies), using highly instrumented
equipment, show a high probability for significant noise generation at speeds greater than 3,500 feet per minute and
belt widths in excess of 85mm.

On all drives using stock or made-to-order sprockets, the
following conditions should be considered when selecting
flanged sprockets:
1. On all two-sprocket drives, the minimum flanging
requirements are two flanges on one sprocket or one
flange on each sprocket on opposite sides.
2. On drives where the center distance is more than
eight times the diameter of the small sprocket, both
sprockets should be flanged on both sides. (See
Engineering Section II-10, Drive Alignment on page
141 and Engineering Section II-11, Belt Installation
on page 142.)
3. On vertical shaft drives, one sprocket should be
flanged on both sides, and all the other sprockets in
the system should be flanged on the bottom side
only.
4. On drives with more than two sprockets, the minimum flanging requirements are two flanges on every
other sprocket or one flange on every sprocket—on
alternating sides around the system.
On made-to-order sprockets, flanges must be securely fastened, such as using mechanical fasteners, welding, shrinkfit or other equivalent methods.

11. Fixed (Nonadjustable) Center Distance
Designers sometimes attempt to design synchronous belt
drive systems without any means of belt adjustment or take
up. This type of system is called a Fixed Center Drive.
While this approach is often viewed as being economical,
and is simple for assemblers, it often results in troublesome
reliability and performance problems in the long run.

Many times a belt drive system, when operating under load,
is not the primary cause for noise. Undersized, poorly lubricated, worn or misaligned bearings can cause significant
noise levels. Rotating parts of a total system can create air
disturbances, thus generating noise. A weak structural
design could flex under the load and cause misalignment
and affect components in the drive system, thereby creating
noise. Consideration should also be given to assuring that
the total system has not been designed to act as an echo
chamber, thus amplifying an otherwise insignificant noise.

The primary pitfall in a fixed center design approach is failure to consider the affects of system tolerance accumulation. Belts and sprockets are manufactured with industry
accepted production tolerances. There are limits to the
accuracy that the center distance can be maintained on a
production basis as well. The potential effects of this tolerance accumulation is as follows:

It becomes obvious there are many sources for noise in
most applications. The study and understanding of noise
analysis is a complex and controversial issue. It should be
apparent to the designer that noise problems require very
careful and thorough examinations. If belt drive noise is a
problem, contact Gates Power Transmission Product
Application for further assistance.

High Tension:
Short Belt with Large Sprockets on a Long Center Distance

10. Use of Flanged Sprockets
Guide flanges are needed in order to keep the belt on the
sprocket. Due to tracking characteristics, even on the best
aligned drives, belts will ride off the edge of the sprockets.
Flanges will prevent this belt ride-off.

Page 134

Low Tension:
Long Belt with Small Sprockets on a Short Center Distance

Belt tension in these two cases can vary by a factor of 3 or
more with a standard fiberglass tensile cord, and even more
with an aramid tensile cord. This potential variation is great
enough to overload bearings and shafting, as well as the
belts themselves. The probability of these extremes occurring is a matter of statistics, but however remote the
chances seem, they will occur in a production setting. In
power transmission drives, the appearance of either
extreme is very likely to impact drive system performance in
a negative manner.

The Gates Rubber Company

The most detrimental aspect of fixed center drives is generally the potentially high tension condition. This condition can
be avoided by adjusting the design center distance. A common approach in these designs is to reduce the center distance from the exact calculated value by some small fraction. This results in a drive system that is inherently loose,
but one that has much less probability of yielding excessively high shaft loads. NOTE: This approach should not be
used for power transmission drives since the potentially
loose operating conditions could result in accelerated wear
and belt ratcheting, even under nominal loading.
There are times when fixed center drive designs can’t be
avoided. In these cases, the following recommendations will
maximize the probability of success.

Idler arc of contact should be held to a minimum. All idlers
should be rigidly mounted in place to minimize movement or
deflection during drive startup and operation.
In most cases, use of spring-loaded idlers is not recommended on positive belt applications. This stems from the
fact that a synchronous belt can generate sufficient tension
to overcome any reasonable force imposed by a springloaded idler (See Engineering Section II-14, Self-Generated
Tension on page 143). The belt may ratchet in this situation
because the idler has not maintained sufficient belt tension
on the slack side span. Any spring force sufficient to resist
being overcome by belt span tensions may be excessive
and could significantly reduce belt life. Exceptions include
lightly loaded applications.

1. Do not use a fixed center design for power transmission drives. Consider using a fixed center design only
for lightly loaded or motion transfer applications.

13. Minimum Belt Wrap
and Tooth Engagement

2. Do not use a fixed center design for drives requiring
high motion quality or registration precision.

Horsepower ratings listed in this catalog are based on a
minimum of six teeth in mesh between the belt and the
sprocket. The ratings must be corrected for excessive tooth
loading if there are less than six teeth in mesh. For nonstock drives not listed in the Drive Selection Tables, the
teeth in mesh may be calculated by using this formula:

3. When considering a fixed center design, the center
distance must be held as accurately as possible, typically within 0.002”—0.003” (0.05mm—0.08mm). This
accuracy often requires the use of stamped steel
framework. Molding processes do not generally have
the capability of maintaining the necessary accuracy.
4. Sprockets for fixed center systems should be produced with a machining process for accuracy.
Molding and sintering processes are generally not
capable of holding the finished O.D. sufficiently accurate for these systems.
5. The performance capabilities of the drive system
should be verified by testing belts produced over their
full length tolerance range on drive systems representing the full potential center-distance variation.
Contact Gates Power Transmission Product
Application for further details.
6. Contact Gates Power Transmission Product
Application for design center distance recommendations, and to review the application.

12. Use of Idlers
Use of idlers should be restricted to those cases in which
they are functionally necessary. Idlers are often used as a
means of applying tension when the center distance is not
adjustable.
Idlers should be located on the slack side span of the belt
drive. For inside idlers, grooved sprockets are recommended up to 40 grooves. On larger diameters, flat uncrowned
idlers may be used. In some cases, such as high capacity
drives utilizing large sprockets, idlers as large as the smallest loaded sprocket in the system may be more appropriate.


D − d 
Ng
Teeth in Mesh = 0.5 − 
  Ng

 6C  
Where: D = pitch diameter, large sprocket, inches
d = pitch diameter, small sprocket, inches
C = center distance between shafts, inches
Ng = number of grooves in small sprocket
Ng

In cases where fewer than six teeth are in full contact, 20%
of the horsepower rating must be subtracted for each tooth
less than six not in full contact. After computing the teeth in
mesh, the belt rating should be multiplied by the appropriate
Ktm factor shown in the following table.

Teeth In Mesh Correction Factor
Teeth in Mesh

Factor KTM

6 or more
5
4
3
2

1.00
0.80
0.60
0.40
0.20

In addition to the number of teeth in mesh, some drives with
more than two shafts may have a greater potential for the
belts to ratchet where loaded sprockets have 6 teeth in
mesh, but a small arc of contact. In order to minimize this
condition, each loaded sprocket in the drive system should
have an arc of contact or belt wrap angle of at least 60
degrees. Non-loaded idler sprockets do not have tooth
meshing or wrap angle requirements.

Outside or backside idlers should be flat and uncrowned;
flanges may or may not be necessary. Diameters should not
be smaller than 1.3 times the smallest recommended inside
sprocket size.

The Driving Force in Power Transmission

Page 135

14. Adverse Operating Environments

Section II

Debris
Be very careful when using synchronous drives in high
debris environments. Debris can be more damaging to the
positive belt drive than a V-belt drive, which has a tendency
to remove debris from the sheave grooves through drive
operation. Entrapment of debris in synchronous drives is a
major concern. Debris can be packed into sprocket grooves
causing improper belt tooth engagement, reducing belt life
and accelerating belt and sprocket wear. Care must be
taken to provide adequate shielding to drives in environments where debris is likely. Completely enclosing a synchronous belt drive may be acceptable. Since synchronous
belts generate minimal heat during drive operation, air circulation is not critical except where extremely high temperatures already are present. Depending on the type and abrasive characteristics of the debris, excessive wear can be
generated on both belt and sprockets.

Engineering Design Considerations
All synchronous belt drives require proper installation procedures for optimum performance. In addition, topics such as
tooth profile advantages, sprocket rim speed limitations, efficiency, and tolerances are common to all Gates synchronous belt drives.
1. Belt Storage and Handling
2. Center Distance and Belt Length
3. Tooth Profiles
4. Static Conductivity
5. Sprocket Diameter - Speed
6. Efficiency

Temperature
Belt performance is generally unaffected in ambient temperature environments between -30° and 185°F (-34° and
85°C). Temperature extremes beyond these limits should be
reviewed by Gates Power Transmission Product Application.

7. Belt Tolerances

Chemical Resistance
Based on lab and field testing, PowerGrip belts provide
excellent resistance to most chemicals. Actual performance
characteristics will be determined by the degree of concentration of the chemical, the time of exposure and the type of
exposure (drip, splash, immersion, etc.). In addition to possible belt degradation, these chemicals can act as a lubricant in the drive system. As with any positive belt drive,
PowerGrip drives which run where excessive lubrication is
present have an increased tendency to ratchet (See
Engineering Section II-14, Self Generated Tension on page
143). Special attention should be given to assure that recommended tension is maintained (See Engineering Section
II-8, Belt Installation Tension on page 139).

10. Drive Alignment

High Humidity
Many industrial applications face the problems of rusting
parts. This is equally true of sprockets when used in very
wet or humid environments, such as seen with air moving
drives on cooling towers or wood kilns. The constant effects
of the wet air surrounding the belt drive can cause excessive rust, which in the most severe cases may lead to premature wear.
In these instances the designer may elect to use special
stainless steel sprockets or a more economical choice such
as nickel coating. A 0.001" thick coating of electroless nickel
can, in many instances, dramatically slow down the effects
of rusting.

8. Belt Installation Tension
9. Center Distance Allowances for Installation
and Tensioning

11. Belt Installation
12. Belt Pull Calculations
13. Bearing/Shaft Load Calculations
14. Self-Generated Tension
Each of these circumstances and special considerations are
reviewed below.

1. Belt Storage and Handling
Synchronous belts should be protected from moisture, temperature extremes, direct sunlight and high ozone environments. Each belt should be stored In its original package,
avoiding any sharp bends or crimping which will cause damage. When properly stored, Gates synchronous belts should
easily meet the criteria covered in RMA Bulletin IP-3-4
(eight years’ storage with no reduced performance).

2. Center Distance and Belt Length
The approximate relationship between a center distance and
belt pitch length is given by the following formula:

Formula 6
1
(D − d)2
4C
Where: Lp = belt pitch length, inches
D = diameter of large sprocket, inches
d = diameter of small sprocket, inches
C = center distance, inches
Lp = 2C + 1.57(D + d) +

Page 136

The Gates Rubber Company

A more precise formula is given below:

Formula 7
2
π ( D + d)
π ϕ ( D − d)
+
2
180
Where:
Where: Lp = belt pitch length, inches
C = center distance, inches
D = pitch diameter of large sprocket, inches
d = pitch diameter of small sprocket, inches
Lp = 2C Cos ϕ +

D − d
ϕ = sin 
 degrees
 2C 
The approximate center distance can be found by this
formula:
−1

Formula 8
3
C=

K +


√
K2 − 32 (D − d)

2

16

Where: K = 4Lp – 6.28 (D + d)

The exact center distance can be calculated using an iterative process between the center distance (Formula 3) and
belt length (Formula 2) equations. The exact center distance
has been found when the two equations converge. The
pitch length increment of a synchronous belt is equal to a
multiple of the belt pitch.

3. Tooth Profiles
Conventional trapezoidal belts (MXL, XL, etc.) were the earliest developments of positive drive belts. In more recent
years, new curvilinear profiles have entered the market. The
most predominant of these profiles is the HTD® system
(5mm, 8mm, etc.). While these curvilinear profiles provide
many advantages, they also can provide significant disadvantages.
R

With the development of the new Gates GT® tooth profile,
the combined advantages of the various curvilinear profiles
have now been optimized. Characteristics such as ratcheting resistance, improved load/life and noise reduction were
prime factors in the design of the Gates GT® profile.
Additionally, it allowed optimization in incorporating premium
materials into its superior construction.

Figure 4

4. Static Conductivity
All belts, whether made from rubber or urethane, naturally
build up an electric charge while in operation. While the likelihood that an electrical discharge from a belt could actually
cause a detonation continues to be a point of speculation,
lower humidity levels around 15% are known to result in significantly stronger electrical charges than higher humidity
levels around 60% or more. Thus, greater precautions
should be taken for belt drive systems operating in low
humidity, or dry, environments.
Power transmission belts produced in a conductive construction have traditionally been considered to be relatively
safe for explosive environments. Conductive belts continuously dissipate their electrical charge into the ferrous
sprockets or sheaves on which they operate. The test procedure described in RMA Bulletin IP-3-3/1995 provides a
measurable standard of belt conductivity to ensure that
electrical charges from power transmission belts are safely
dissipated into the belt drive hardware. It is important to
note that this test procedure applies only to new belts.
PowerGrip belts do not meet the static conductivity requirements specified in RMA Bulletin IP-3-3/1995. Though
PowerGrip belts can be produced in a conductive construction, it is important to understand that belt conductivity properties are known to decay over time with belt usage. In
addition, power transmission belts that do not meet the
RMA IP-3-3 standard are widely available. A conductive
power transmission belt used in an explosive environment
could inadvertently be replaced with an unsafe belt, creating
a potential safety hazard.
The user must ensure that belt drives operating in potentially hazardous or explosive environments are designed and
installed in accordance with existing building codes, OSHA
requirements, and/or recognized safety-related organizations.

The GT® tooth profile is based on the tractix mathematical
function. Engineering handbooks describe this function as a
“frictionless” system. This early development by Schiele is
described as an involute form of a catenary. With this system, the belt and sprocket teeth move substantially tangentially during entry and exit, thus improving significantly the
belts’ performance characteristics. This is illustrated in Fig. 4.

The Driving Force in Power Transmission

Page 137

5. Sprocket Diameter—Speed

heat build up due to increased friction in the roller joints.
Even properly lubricated chains running at higher speeds
tend to throw off the oil due to centrifugal forces, making it
difficult to maintain proper lubrication at the load bearing
surfaces. Consequently, chain drives are typically only 9298% efficient.
Speed losses result from belt slip and creep. Unlike V-belts,
slip is not a factor with synchronous belts. Well maintained
V-belt drives are typically in the range of 95-98% efficient.
However, on a poorly designed or maintained drive, the efficiency may drop as much as 5% or more. If proper maintenance cannot be scheduled for a V-belt drive or it is located
in an inaccessible area, a positive belt drive system should
be considered.

Drives shaded in the Belt Width Selection Tables on pages
44 through 51, pages 56 through 58, and pages 75 through
84 use sprocket diameters that may reduce belt life. The
amount of reduction will depend on speed—the higher the
speed, the greater the reduction. The drives are included for
use where speed ratio or space requirements must be met.
Blanks in the lower right-hand portions of the Belt Width
Selection Tables occur because sprocket rim speed
exceeds 6,500 feet per minute. Centrifugal forces developed beyond this speed may prohibit the use of stock gray
cast iron sprockets. For rim speeds above 6,500 feet per
minute, contact Gates Power Transmission Product
Application for other alternatives.

Sprockets Recommended
For maximum performance, we recommend using Gates
PowerGrip belts only with Gates PowerGrip® Sprockets

Increasing DriveN Torque

The belt drive is only part of the total system. Motors should
be properly sized for the application. They must have sufficient capacity to meet the power needs, yet over-designed
motors will lead to electrical inefficiencies. DriveN machines
also may have inherent inefficiencies which may contribute
to overall system efficiency.

6. Efficiency
When properly designed and applied, PowerGrip belt drive
efficiency will be as high as 98%. This high efficiency is primarily due to the positive, no slip characteristic of synchronous belts. Since the belt has a thin profile, it flexes easily,
thus resulting in low hysteresis losses as evidenced by low
heat buildup in the belt.
Gates synchronous belts are uniquely constructed because
they use high performance materials. Optimization of these
high-technology features provide maximum performance
and efficiency.
Synchronous belt drive efficiency can be simply defined as
shown in the following equation:

Efficiency, percent =

DN RPM × DN Torque
× 100
DR RPM × DR Torque

When examining the loss of energy, it is necessary to consider belt losses in terms of shaft torque and shaft speed.
Torque losses result from bending stress and friction.
Chain drives running unlubricated may generate significant
R

Page 138

The Gates Rubber Company

7. Belt Tolerances

Stock
BeltBelt
Center
Distance
Tolerances
Stock
Width
Tolerances

These tolerances are for reference only. For fixed center
drive applications and special tolerances, contact Gates
Power Transmission Product Application.

Belt Width Tolerances
(mm)
Belt Width

Belt

(mm)

Lengths

(in)

0

838

(in)
to

0
Stock
BeltCenter
Center Distance
Distance Tolerances
Stock
Belt
Tolerances
(mm)
(in)

Belt Length
over

127
5

to

Center Distance
Tolerance

254
10

±

0.20
.008

over

254
10

to

381
15

±

0.23
.009

over

381
15

to

508
20

±

0.25
.010

over

508
20

to

762
30

±

0.30
.012

over

762
30

to

1016
40

±

0.33
.013

over

1016
40

to

1270
50

±

0.38
.015

over

1270
50

to

1524
60

±

0.41
.016

over

1524
60

to

1778
70

±

0.43
.017

over

1778
70

to

2032
80

±

0.46
.018

over

2032
80

to

2286
90

±

0.49
.019

over

2286
90

to

2540
100

±

0.52
.020

over

2540
100

to

2794
110

±

0.54
.021

over

2794
110

to

3048
120

±

0.56
.022

over

3048
120

to

3302
130

±

0.58
.023

over

3302
130

to

3556
140

±

0.60
.024

over

3556
140

to

3810
150

±

0.63
.025

3810
over
150

4064
to
160

(mm)
(in)

0.66
±
.026

over

4064
160

to

4318
170

±

0.69
.027

over

4318
170

to

4572
180

±

0.72
.028

over

4572
180

add ±
every

.03
for
.001
254
increment
10

Belt

over

11.1

to

0.438
over

38.1

1.500
to

1.500
over

50.8

63.5

to

76.2

to

101.6

to

177.8

101.6
4.000

to

4.000
over

76.5
3.000

3.000
over

63.5
2.500

2.500
over

50.8
2.000

2.000
over

38.1

177.8
7.000

.8

(mm)

Belt

(mm)

Lengths (in) Lengths (in)
over
over
838
1676
1676
to
33
66
66

33

+
0.032

.8
–
0.032

.8
+
0.032

–

.8
+
0.032

1.2
–
0.047

1.2
+
0.047

–

1.2
+
0.047

1.2
–
0.047

1.2
+
0.047

–

1.2
+
0.047

1.6
–
0.063

1.6
+
0.063

–

1.6
+
0.063

1.6
–
0.063

1.6
+
0.063

–

2.4
+
0.094

2.4
–
0.094

2.4
+
0.094

–

1.2
0.047
1.2
0.047
1.6
0.063

.8
1.2
+
–
0.032 0.047
1.2
1.6
+
–
0.047 0.063
1.6
1.6
+
–
0.063 0.063

1.6

1.6
2.9
+
–
0.063 0.063 0.078
2.0
0.078
2.8
0.109

to

2.0
2.0
+
–
0.078 0.078
2.4
3.2
+
–
0.094 0.125
+

7.000

4.8
0.188

–

6.4
0.250

8. Belt Installation Tension
Standard Belt Tensioning Procedure
When installing a Gates PowerGrip belt:
A. Be sure it is tensioned adequately to prevent tooth
jumping (ratcheting) under the most severe load conditions which the drive will encounter during operation.
B. Avoid extremely high tension which can reduce belt
life and possibly damage bearings, shafts and other
drive components.
When you wish to use a numerical method for calculating
recommended belt installation tension values, the following
procedure should be used:
Measure the force (lb) required to deflect one belt span a
given amount, as shown in the sketch below.

Span L
ength

Force

The Driving Force in Power Transmission

Deflection
1/64" per inch
of span
, t

t =


√

D −
2
C −
 2

Page 139

STEP 1: Calculate the required base static
installation tension.
Use Formula 4 to calculate the required base static
installation tension.

If a more appropriately sized drive cannot be designed, minimum recommended Tst values are provided in Table 3 to
assure that the PowerGrip belts are tensioned properly
when lightly loaded.
Always use the greater Tst value; i.e., from Tst Formula 4 or
Table 3.

Formula 4
Tst = 17.4DHP + mS2 , pounds
S

STEP 2: Calculate the
theminimum
minimumand
and
maximum
maximum
recommended deflection forces.

Where: DHP = Design Horsepower
S = PD x RPM
3820
m = Value from Table 3
PD = Sprocket Pitch Diameter, inches
RPM = Sprocket Speed

A.
A. Measure
Measure the
the span
span length
length of
of your
your drive
drive (see
(see sketch).
sketch).

Span L
ength

Deflection
1/64" per inch
of span
, t

t =

Force

Table 3
Pitch

m

Y

Minimum Tst
(lb) per span

9mm
15mm
25mm

0.17
0.28
0.47

14.90
24.90
41.50

8.4
14.1
23.4

20mm
30mm
50mm
85mm

0.58
0.88
1.46
2.45

34.18
51.27
85.45
145.26

18.5
30.0
52.0
94.5

40mm
55mm
85mm
115mm
170mm

1.78
2.44
3.77
5.11
7.55

93.04
127.93
197.72
267.50
395.43

76.5
120.0
205.5
291.0
447.5

115mm
170mm
230mm
290mm
340mm

7.24
10.71
14.49
18.27
21.42

366.98
542.49
733.96
925.43
1084.99

391.5
603.0
834.0
1065.0
1257.5

5M
PowerGrip HTD

15mm
25mm

0.26
0.43

13.32
22.20

12.0
16.5

XL PowerGrip
Timing

1/4 in.
3/8 in.

0.07
0.11

3.30
4.90

3.2
5.1

L PowerGrip
Timing

1/2 in.
3/4 in.
1 in.

0.19
0.29
0.38

10.00
18.00
25.00

13.0
19.0
25.0

3/4 in.
1 in.
1-1/2 in.
2 in.
3 in.

0.34
0.46
0.69
0.92
1.40

33.00
47.00
73.00
100.00
160.00

54.0
72.0
110.0
140.0
220.0

2 in.
3 in.
4 in.

2.70
4.00
5.30

200.00
320.00
460.00

210.0
310.0
410.0

2
3
4
5

3.50
5.30
7.00
8.80

320.00
510.00
720.00
930.00

260.0
390.0
520.0
650.0

5MR
PowerGrip GT2

8M
PowerGrip GT2
PowerGrip GT

14M
PowerGrip GT2
PowerGrip GT

20M
PowerGrip GT2

H PowerGrip
Timing

XH PowerGrip
Timing

XXH PowerGrip
Timing

Belt Width

in.
in.
in.
in.

Because of the high performance capabilities of PowerGrip
belts, it is possible to design drives that have significantly
greater load than are necessary to carry the actual design
load. Consequently, Formula 4 can provide Tst values less
than are necessary for the belt to operate properly, resulting
in poor belt performance and reduced service life.

Page 140


√

D − d 2
2
C −

 2 

force:=
B. Minimum recommended force
B.
Formula 53
Formula

deflection force, Min. =
=

t
1.4
1.2 Tst +  L  Y
 

, lbf

16

C. Maximum recommended force
C.
force:=
Formula 64
Formula

deflection
=
deflectionforce,
force,Max.
Min. =

Where: TTstst=
t t=
LL=
Y=
Y

t
1.5
1.3 Tst +  L  Y
 

, lbf

16
Base
Static
tension,
=
Static
tension,
lbf lbf
span
=
spanlength,
length,inches
inches
belt
=
beltpitch
pitchlength,
length,inches
inches
constant
=
constantfrom
fromTable
Table3 1

NOTE: For initial belt installation of a new belt, a recommended tension
NOTE: For
re-installation
of a used
belt,
a recommended
of
should
be used
in calculating tension
the deflection
of 1.4
Tst to 1.5 Tst value
1⁄ inch
1.2
Tst Deflection
to 1.3 Tst isvalue
be used
in length
calculating
per inch
of span
or t⁄64 .the
forces.
64 should
deflection forces.

STEP 3: Applying the tension.
A. At the center of the span (t) apply a force perpendicular to the span large enough to deflect the belt on the
drive 1⁄64 inch per inch of span length from its normal
position. One sprocket should be free to rotate. Be
sure the force is applied evenly across the entire belt
width.
B. Compare this deflection force with the range of forces
calculated in Step 2.
1. If it is less than the minimum recommended
deflection force, the belt should be tightened.
2. If it is greater than the maximum recommended deflection force, the belt should be
loosened.

The Gates Rubber Company

9. Center Distance Allowances for
Installation and Tensioning

10. Drive Alignment

Since fixed center drives are not recommended, center distance allowances for a Gates PowerGrip belt drive are necessary to assure that the belt can be installed without damage and then tensioned correctly. The standard installation
allowance is the minimum decrease in center distance
required to install a belt when flanged sprockets are removed
from their shafts for belt installation. This is shown in the
first column of Table 4. This table also lists the minimum
increase in center distance required to assure that a belt
can be properly tensioned over its normal lifetime. If a belt
is to be installed over flanged sprockets without removing
them, the additional center distance allowance for installation shown in the second table below must be added to the
first table data.

Table 4
Center Distance Allowance For Installation and Tensioning
Length Belt (mm)
(in)

Standard Installation Allowance
(Flanged Sprockets
(mm)
RemovedFor Installation) (in)

Tensioning Allowance
(All Drives)
(mm)
(in)

Up to 125
5

0.5
0.02

0.5
0.02

Over

125
250
to
5
10

0.8
0.03

0.8
0.03

Over

250
500
to
10
20

1.0
0.04

0.8
0.03

Over

500
1000
to
20
40

1.8
0.07

0.8
0.03

1000 1780
Over
to
40
70

2.8
0.10

0.8
0.04

1780 2540
Over
to
70
100

3.3
0.13

1.0
0.04

2540 3300
Over
to
100
130

4.1
0.16

1.3
0.05

3300 4600
Over
to
130
180

4.8
0.19

1.3
0.05

4600 6900
Over
to
180
270

5.6

1.3

0.22

0.05

Provision should be made for center distance adjustment,
according to the two tables on this page, or to change the
idler position so the belt can be slipped easily onto the
drive. When installing a belt, never force it over the flange.
This will cause internal damage to the belt tensile member.
Synchronous belts typically are made with high modulus
tensile members which provide length stability over the belt
life. Consequently, misalignment does not allow equal load
distribution across the entire belt top width. In a misaligned
drive, the load is being carried by only a small portion of the
belt top width, resulting in uneven belt wear and premature
tensile failure.
There are two types of misalignment: parallel and angular
(See Fig.5). Parallel misalignment is where the driveR and
driveN shafts are parallel, but the two sprockets lie in different planes. When the two shafts are not parallel, the drive is
angularly misaligned.
A fleeting angle is the angle at which the belt enters and
exits the sprocket, and equals the sum of the parallel and
angular misalignments.
Any degree of sprocket misalignment will result in some
reduction of belt life, which is not accounted for in the normal drive design procedure. Misalignment of all synchronous belt drives should not exceed 1/4° or 1/16" per foot of
linear distance. Misalignment should be checked with a
good straight edge tool. The tool should be applied from
driveR to driveN, and then from driveN to driveR so that the
total effect of parallel and angular misalignment is taken into
account.

PARALLEL MISALIGNMENT
CL
ANGULAR MISALIGNMENT

Additional Center Distance Allowance For Installation Over
Flanged Sprockets*

FLEETING ANGLE

CL

(Add to Installation Allowance In Table No. 4)
Pitch

One Sprocket (mm)
Flanged
(in)

Both Sprockets (mm)
Flanged
(in)

0.080" (MXL)

8.4
0.33

12.4
0.49

0.200" (XL)

11.7
0.46

18.0
0.71

0.375" (L)

16.3
0.64

21.6
0.85

0.500" (H)

16.3
0.64

24.4
0.85

5mm

13.5
0.53

19.1
0.75

8mm

21.8
0.86

33.3
1.31

14mm

31.2
1.23

50.0
1.97

20mm

47.0
1.85

77.5
3.05

* For drives that require installation of the belt over one sprocket at a time, use the value
for “Both Sprockets Flanged”

Figure 5

Drive misalignment can also cause belt tracking problems.
However, light flange contact by the belt is normal and won’t
affect performance.
For those drives in which the center distance is greater than
eight times the small sprocket diameter, belt tracking can be
a problem. In these cases, the parallel position of the two
sprockets may need to be adjusted until only one flange
guides the belt in the system and the belt tracks fully on all
sprockets. Regardless of the drive center distance, the optimum drive performance will occur with the belt lightly contacting one flange in the system. The worst case is for the
belt to contact flanges on opposite sides of the system. This
traps the belt between opposite flanges and can force the
belt into undesirable parallel misalignment.

The Driving Force in Power Transmission

Page 141

Improper installation of the bushing can result in the bushing / sprocket assembly being "cocked" on the shaft. This
leads to angular misalignment and sprocket wobble. Be
sure to follow the instructions provided with the bushings.

shafts is equal but opposite in direction . For drives using
idlers, both magnitude and direction may be different.

11. Belt Installation

If only the magnitude of belt pull is needed, follow the steps
below. Use this method for drives with two sprockets. Use
the graphical method shown if the drive uses idlers.

During the belt installation process, it is very important the
belt be fully seated in the sprocket grooves before applying
final tension. Serpentine drives with multiple sprockets and
drives with large sprockets are particularly vulnerable to belt
tensioning problems resulting from the belt teeth being only
partially engaged in the sprockets during installation. In
order to prevent these problems, the belt installation tension
should be evenly distributed to all belt spans by rotating the
system by hand. After confirming that belt teeth are fully
engaged in the sprocket grooves, belt tension should be
rechecked and verified. Failure to do this may result in an
undertensioned condition with the potential for belt ratcheting.

C. Solution For Magnitude Only

1. Add TT and TS
D-d
C for the drive,
find the vector sum correction factor using
Fig. 7, where:

2. Using the value of

D = large diameter
d = small diameter
C = center distance
Or, use the arc of contact on the small
sprocket if known.

12. Belt Pull Calculations

3. Multiply the sum of TT plus TS by the vector
sum correction factor to find the vector
sum of TT plus TS.

When the machine designer requests shaft load calculations
from the drive designer, the following procedure can be
applied:

A. Calculate Belt Span Tensions

Parallel

Belt pull is the vector sum of TT and TS, the tightside and
slackside tensions. TT and TS may be calculated using the
following formulas:

TS
Parallel

Motor

Figure 6

144,067 DHP
(PD)(RPM)
Formula 8

Vector Sum Correction Factor
D-d
9HFWRU6XP&RUUHFWLRQ)DFWRU
C
'G
1.4
1.2
0.8
&1.0





1.6


18,008 DHP
(PD)(RPM)

0.4


0.2


0


0.9

Where: DHP = Horsepower x Service Factor
PD = Sprocket Pitch Diameter (in)
RPM = Sprocket Speed (rev/min)


0.8


0.7

)RU
For 2-sprocket
VSURFNHW
6\QFKURQRXV Drives
Synchronous
'ULYHV


0.6

B. Solution For Both Magnitude and Direction

0.5


60

The vector sum of TT and TS can be found so that the direction of belt pull, as well as magnitude, is known. This is necessary if belt pull is to be vectorially added to sprocket
weight, shaft weight, etc., to find true bearing loads. In this
case, the easiest method of finding the belt pull vector is by
graphical addition of TT and TS. If only the magnitude of belt
pull is needed, numerical methods for vector additions are
faster to use.
If both direction and magnitude of belt pull are required, the
vector sum of TT and TS can be found by graphical vector
addition as shown in Fig. 6. TT and TS vectors are drawn to
a convenient scale and parallel to the tightside and slackside, respectively. Fig. 6 shows vector addition for belt pull
on the motor shaft. The same procedures can be used for
finding belt pull on the driveN shaft. This method may be
used for drives using three or more sprockets or idlers.
For two-sprocket drives, belt pull on the driveR and driveN

Page 142

0.6


1
Vector9HFWRU6XP&RUUHFWLRQ)DFWRU
Sum Correction Factor

T =
S

T
Parallel to T
Slackside

Formula 7
TT =

Tightside
Parallel to
TS
TT
ll
Resultant Belt Pu


70


80








90
100
110
120
130
140
150
$UFRI&RQWDFWRQ6PDOO6SURFNHW'HJUHHV
Arc of Contact
on Small Sprocket, Degrees


160


170

Figure 7

13. Bearing / Shaft Load Calculations
A. Shaft Load Calculations
If true side load on the shaft, including sprocket weight, is
desired, the sprocket weight can be added to the belt pull
using the same graphical method shown in Fig. 6. The
sprocket weight vector is vertical toward the ground.
Weights for standard sprockets are shown in the sprocket
specification tables.

The Gates Rubber Company


180

14. Self-Generated Tension

B. Bearing Load Calculations
In order to find actual bearing loads, it is necessary to know
weights of machine components and the value of all other
forces contributing to the load. However, it is sometimes
desirable to know the bearing load contributed by the synchronous drive alone. Bearing loads resulting from a synchronous belt drive can be calculated knowing bearing
placement with respect to the sprocket center and the shaft
load as previously calculated. For rough estimates, machine
designers sometimes use belt pull alone, ignoring sprocket
weight. If accuracy is desired, or if the sprocket is unusually
heavy, actual shaft load values including sprocket weight
should be used.
A. Overhung Sprocket
a

b

Bearing
Load
A

All synchronous belt drives exhibit a self-generating or selftightening characteristic when transmitting a load.
Laboratory testing has shown this characteristic is similar
with all tooth profiles. The designer/user should be aware
that self-tensioning can result in increased bearing and
shaft loads and reduced drive performance; i.e., short belt
life. This can be avoided by following proper tensioning procedures.
Properly designed and tensioned drives will not be significantly affected by self-generated tension. While belt
overtensioning can impose higher bearing and shaft loads
and lead to reduced belt life, undertensioning can result in
self-tensioning.
When a belt is too loose for the design load, the self-tensioning characteristic results in the belt teeth climbing out of
the sprocket grooves, leading to increased stresses on the
belt teeth, accelerated tooth wear and reduced belt life.

Bearing
Load
B

Shaft
Load

Figure
Fig. A 8
Formula 12
9
Formula
Shaft Load x (a + b)
B, (lb) =
=
LoadLoad
at B,atpounds
a

When a belt is severely undertensioned, the self-tensioning
characteristic can result in the belt ratcheting (jumping
teeth). When this occurs, significant shaft separation forces
are instantaneously developed in the drive, resulting in
damage to bearings, shafts, and other drive components
including the belt.
NOTE: This is true for all synchronous belts.
Maximum drive performance and belt life are achieved
when the belt is properly tensioned for the design load and
maintained.

Formula 10
Formula
13
LoadLoad
at A,at
pounds
A, (lb) == Shaft Load x

b
a

Where:
perFig.
Fig.8A
Where:aaand
andbb==spacing,
spacing,inches,
(in), per

B. Sprocket Between Bearings
c

Bearing
Load
C

d

Shaft
Load

Bearing
Load
D

Figure
Fig. B 9
Formula14
11
Formula
D (lb) =
=
LoadLoad
at D, at
pounds

Shaft Load × c
(c + d)

Formula 15
12
Formula
Shaft Load × d
(c + d)
Where:
c and
= spacing
(in), per
Where:
c and
d =d spacing,
inches,
per Fig.
Fig. 9B
C (lb) =
=
Load Load
at C, at
pounds

The Driving Force in Power Transmission

Page 143

®

Made-to-order (MTO) PowerGrip Belts
In addition to the stock industrial PowerGrip® belts listed in this catalog, Gates offers many special construction, made-to-order belts for use
with stock sprockets. The table below lists some of them. Contact Gates for more information.

MTO BELT TYPES

APPLICATION

Alternate tensile member

Special applications: i.e., low rpm, shock loads and precise
registration.

Nonstock widths and/or lengths in stock pitches

When exact width or length is required.

High temperature

Dry operation from –40°F to 230°F (–40°C to 110°C)

Oil resistance

For excessively oily conditions, including immersion in
commercial motor oil. Temperature range: in oil, –20°F to
240°F (–29°C to 116°C); dry, –20°F to 210°F (–29°C to 99°C)

Static dissipating

Resistance of 6 megohms or less.

Low temperature

Dry temperature operation from –65°F to 180°F (–54°C to 82°C)

Nonmarking backing

For conveyors, food handling, etc., with taste and toxicity
subject to customer approval.

Precision ground backing

Special applications involving a critical overall belt thickness
dimension.

Special thickness rubber backing

For functional and other applications where belt back may
require special thickness, durometer or material.

Special tracking

When belt must track in a specific direction.

Page 144

R

The Gates Rubber Company

Troubleshooting
Symptom

Diagnosis

Possible Remedy

Misaligned drive
Too low or high belt tension
Backside idler
Worn sprocket
Bent guide flange
Belt speed too high
Incorrect belt profile for the sprocket
(i.e., GT® etc.)

Correct alignment
Adjust tension to recommended value
Use inside idler
Replace sprocket
Replace sprocket/flange
Redesign drive
Use proper Gates PowerGrip® GT®2 belt/sprocket

Subminimal diameter
Excess load

Redesign drive using larger diameters
Redesign drive for increased capacity

Weak support structure
Excessive sprocket wear
Fixed (nonadjustable) centers
Excessive debris
Excessive load
Subminimal diameter
Belt, sprockets or shafts running too hot

Reinforce the structure
Use alternate sprocket material
Use inside idler for belt adjustment
Protect drive
Redesign drive for increased capacity
Redesign drive using larger diameters
Check for conductive heat transfer from
prime mover

Unusual belt degradation, such as softening
or melting

Reduce ambient drive temperature to
180°F maximum

Belt running partly off unflanged sprocket
Centers exceed 8 times small sprocket
diameter and the large sprocket is not
flanged.

Correct alignment
Correct parallel alignment to set belt to track on
both sprockets

Excessive belt edge wear

Correct alignment

Flange failure

Belt forcing flanges off

Correct alignment or properly secure flange
to sprocket

Excessive belt edge wear

Damage due to handling
Flange damage
Belt too wide
Belt tension too low
Rough flange surface finish
Improper tracking
Belt hitting drive guard or bracketry

Follow proper handling instructions
Repair flange or replace sprocket
Use proper width sprocket
Adjust tension to recommended value
Replace or repair flange (to eliminate abrasive surface)
Correct alignment
Remove obstruction or use inside idler

Premature tooth wear

Too low or high belt tension
Belt running partly off unflanged sprocket
Misaligned drive
Incorrect belt profile for the sprocket
(i.e., GT®, etc.)

Adjust tension to recommended value
Correct alignment
Correct alignment
®
Use proper Gates PowerGrip® GT 2 belt/sprocket

Worn sprocket
Rough sprocket teeth
Damaged sprocket
Sprocket not to dimensional specification
Belt hitting drive bracketry or other structure
Excessive load
Insufficient hardness of sprocket material
Excessive debris
Cocked bushing/sprocket assembly

Replace sprocket
Replace sprocket
Replace sprocket
Replace sprocket
Remove obstruction or use inside idler
Redesign drive for increased capacity
Use a more wear-resistant material
Protect belt
Install bushing per instructions

Unusual noise

Tension loss

Belt tracking

R

The Driving Force in Power Transmission.

Page 145

Troubleshooting
Symptom

Diagnosis

Possible Remedy

Excessive shock loads
Less than 6 teeth-in-mesh
Extreme sprocket runout
Worn sprocket
Backside idler
Incorrect belt profile for the sprocket
(i.e., GT, etc.)

Redesign drive for increased capacity
Redesign drive
Replace sprocket
Replace sprocket
Use inside idler
Use proper Gates PowerGrip GT2 belt/sprocket

Misaligned drive
Belt undertensioned

Correct alignment
Adjust tension to recommended value

Excessive shock load
Subminimal diameter
Improper belt handling and storage prior to
installation

Redesign drive for increased capacity
Redesign drive using larger diameters
Follow proper handling and storage procedures

Debris or foreign object in drive
Extreme sprocket runout

Protect drive
Replace sprocket

Sprocket has too little wear resistance
(i.e., plastic, aluminum, softer metals)

Use alternate sprocket material

Misaligned drive
Excessive debris
Excessive load
Too high, too low belt tension
Incorrect belt profile (i.e. GT, etc.)

Correct alignment
Protect drive
Redesign drive for increased capacity
Adjust tension to recommended value
Use proper Gates PowerGrip GT2 belt/sprocket

Belt cracking

Subminimal diameter
Backside idler
Extreme low temperature startup
Extended exposure to harsh chemicals
Cocked bushing/sprocket assembly

Redesign drive using larger diameters
Use inside idler
Preheat drive environment
Protect drive
Install bushing per instructions

Excessive temperature
(belt, bearing, housing, shafts, etc.)

Misaligned drive
Too low or too high belt tension
Incorrect belt profile (i.e. GT, etc.)

Correct alignment
Adjust tension to recommended value
Use proper Gates PowerGrip GT2 belt/sprocket

Vibration

Incorrect belt profile for the sprocket
(i.e. GT, etc.)

Use proper Gates PowerGrip GT2 belt/sprocket

Too low or too high belt tension
Bushing or key loose

Adjust tension to recommended value
Check and reinstall per instructions

Tooth shear

Tensile break

Unusual sprocket wear

Page 146

R

The Gates Rubber Company

Standard Calculations
Required

Given

Formula
rpm (faster shaft speed)
rpm (slower shaft speed)

Shaft speeds (rpm)

R =

Pulley diameter (D & d)

R =

D (larger pulley diameter)
d (smaller pulley diameter)

Number of pulley grooves (N & n)

R =

N (larger pulley groove no. )
n (smaller pulley groove no. )

Torque (T) in lb-in
Shaft speed (rpm)

hp =

T x rpm
63,025

Effective tension (Te) in lb.
Belt velocity in fpm

hp =

Te x V
33,000

Design horsepower (Dhp)

Rated horsepower (hp)
Service factor (SF)

Dhp = hp x SF

Power (kw)

Horsepower (hp)

kw = .7457 x hp

Torque (T) in lb-in

Shaft horsepower (hp)
Shaft speed (rpm)

T =

Effective tension (Te) in lbs
Pulley radius (R) in inches

T = Te x R

Torque (T) in N-mm

Torque (T) in lb-inches

T = 112.98 x T

Belt velocity in ft/min

Pulley pd in inches
Pulley speed in rpm

V =

Belt velocity in m/s

Pulley pd in mm
Pulley speed in rpm

V = .0000524 x pd x rpm

Belt pitch length (PL) in inches
(approximate)

Center distance (C) in inches
Pulley diameters (D & d) in inches

PL = 2C + [1.57 × (D − d)] +

Arc of contact on
smaller pulley (A/Cs)

Pulley diameters (D & d) in inches
Center distance (C) in inches

(D − d) × 60 
A / Cs = 180 − 

4C



Torque (T) due to flywheel
effect (WR2) in lb-inches
(accel. and/or decel.)

Final speed (RPM)
Initial speed (rpm)
Flywheel effect (WR2) in lbs-ft2
Time (t) in seconds

Flywheel effect (WR2) in lb-ft2

Face width of rim (F) in inches
Material density (Z) in lbs/in3
Outside rim diameter (D) in inches
Inside rim diameter (d) in inches

Speed ratio (R)

Horsepower (hp)
(33,000 lb-ft/min)

R

T =

63,025 x hp
rpm

pd x rpm
3.82

(D − d)2
4C

.039 x (RPM - rpm) x WR2
t

WR2 =

The Driving Force in Power Transmission.

F x Z x (D4 - d4 )
1467

Page 147

Useful Formulas and Calculations
Power Transmission Conversions
FORCE CONVERSION CONSTANTS
U.S. to Metric
Ouncesf × 0.2780 = Newtons
Poundsf × 4.4482 = Newtons
Poundsf × 0.4536 = Kilogramsf

Metric to U.S.
Newtons × 3.5969 = Ouncesf
Newtons × 0.2248 = Poundsf
Kilogramsf × 2.2046 = Poundsf

Metric to Metric
Kilogramsf × 9.8067 = Newtons
Newtons × 0.1020 = Kilogramsf

TORQUE CONVERSION CONSTANTS
Metric to U.S.
Newton Meters × 141.6119 = Ouncef Inches
Newton Meters × 8.8508 = Poundf Inches
Newton Meters × 0.7376 = Poundf Feet
Metric to Metric
Newton Meters × 10.1972 = Kilogramf Centimeters
Kilogramf Centimeters × 0.0981 = Newton Meters
Newton Meters × 0.1020 = Kilogramf Meters
Kilogramf Meters × 9.8067 = Newton Meters

U.S. to Metric
Ouncef Inches × 0.0071 = Newton Meters
Poundf Inches × 0.1130 = Newton Meters
Poundf Feet × 1.3558 = Newton Meters

POWER CONVERSION CONSTANTS
Metric to U.S.
Kilowatt × 1.3410 = Horsepower
Watt × 0.0013 = Horsepower

U.S. to Metric
Horsepower × 745.6999 = Watt
Horsepower × 0.7457 = Kilowatt
LINEAR BELT SPEED CONVERSION CONSTANTS

Metric to U.S.
Meters per second × 196.8504 = Feet per Minute
U.S. to Metric
Feet per Minute × 0.005080 = Meters per Second
Square Miles × 2.5900 = Square Kilometers

U.S. to U.S.
Feet per Second × 60.00 = Feet per Minute
Feet per Minute × 0.0167 = Feet per Second

Other Conversions
LENGTH CONVERSION CONSTANTS
U.S. to Metric
Inches × 25.4000 = Millimeters
Inches × 0.0254 = Meters
Feet × 0.3048 = Meters
Yards × 0.9144 = Meters
Feet × 0.0003048 = Kilometers
Statute Miles × 1.6093 = Kilometers
Nautical Miles × 1.8532 = Kilometers

Metric to U.S.
Millimeters × 0.0394 = Inches
Meters × 39.3701 = Inches
Meters × 3.2808 = Feet
Meters × 1.0936 = Yards
Kilometers × 3280.84 = Feet
Kilometers × 0.6214 = Statute Miles
Kilometers × 0.5396 = Nautical Miles

AREA CONVERSION CONSTANTS
Metric to U.S.
Square Millimeters × 0.0016 = Square Inches
Square Centimeters × 0.1550 = Square Inches
Square Meters × 10.7639 = Square Feet
Square Meters × 1.1960 = Square Yards
Hectares × 2.4711 = Acres
Square Kilometers × 247.105 = Acres
Square Kilometers × 0.3861 = Square Miles

Page 148

R

U.S. to Metric
Square Inches × 645.160 = Square Millimeters
Square Inches × 6.4516 = Square Centimeters
Square Feet × 0.0929 = Square Meters
Square Yards × 0.8361 = Square Meters
Acres × 0.4047 = Hectares
Acres × 0.004047 = Square Kilometers
Square Miles × 2.5900 = Square Kilometers

The Gates Rubber Company

Useful Formulas and Calculations
Other Conversions — continued
WEIGHT CONVERSION CONSTANTS
Metric to U.S.
Grams × 15.4324 = Grains
Grams × 0.0353 = Ounces (Avd.)
Grams × 0.0338 = Fluid Ounces (water)
Kilograms × 35.2740 = Ounces (Avd.)
Kilograms × 2.2046 = Pounds (Avd.)
Metric Tons (1000 Kg) × 1.1023 = Net Ton (2000 lbs.)
Metric Tons (1000 Kg) × 0.9842 = Gross Ton (2240 lbs.)

U.S. to Metric
Grains × 0.0648 = Grams
Ounces (Avd.) × 28.3495 = Grams
Fluid Ounces (water) × 29.5735 = Grams
Ounces (Avd.) × 0.0283 = Kilograms
Pounds (Avd.) × 0.4536 = Kilograms
Net Ton (2000 lbs.) × 0.9072 = Metric Tons (1000 Kg)
Gross Ton (2240 lbs.) × 1.0160 = Metric Tons (1000 Kg)

DECIMAL AND MILLIMETER EQUIVALENTS OF FRACTIONS
Inches
Fractions
1⁄
64
3⁄
64
5⁄
64
7⁄
64
9⁄
64
11⁄
64
13⁄
64
15⁄
64
17⁄
64
19⁄
64
21⁄
64
23⁄
64
25⁄
64
27⁄
64
29⁄
64
31⁄
64

1⁄
32
1⁄
16
3⁄
32
1⁄
8
5⁄
32
3⁄
16
7⁄
32
1⁄
4
9⁄
32
5⁄
16
11⁄
32
3⁄
8
13⁄
32
7⁄
16
15⁄
32
1⁄
2

Inches
Decimals

Millimeters

.015625
.03125
.046875
.0625
.078125
.09375
.109375
.125
.140625
.15625
.171875
.1875
.203125
.21875
.234375
.250
.265625
.28125
.296875
.3125
.328125
.34375
.359375
.375
.390625
.40625
.421875
.4375
.453125
.46875
.484375
.500

.397
.794
1.191
1.588
1.984
2.381
2.778
3.175
3.572
3.969
4.366
4.763
5.159
5.556
5.953
6.350
6.747
7.144
7.541
7.938
8.334
8.731
9.128
9.525
9.922
10.319
10.716
11.113
11.509
11.906
12.303
12.700

R

Fractions
33⁄
64
35⁄
64
37⁄
64
39⁄
64
41⁄
64
43⁄
64
45⁄
64
47⁄
64
49⁄
64
51⁄
64
53⁄
64
55⁄
64
57⁄
64
59⁄
64
61⁄
64
63⁄
64

Decimals

17⁄
32
9⁄
16
19⁄
32
5⁄
8
21⁄
32
11⁄
16
23⁄
32
3⁄
4
25⁄
32
13⁄
16
27⁄
32
7⁄
8
29⁄
32
15⁄
16
31⁄
32

1

The Driving Force in Power Transmission.

.515625
.53125
.546875
.5625
.578125
.59375
.609375
.625
.640625
.65625
.671875
.6875
.703125
.71875
.734375
.750
.765625
.78125
.796875
.8125
.828125
.84375
.859375
.875
.890625
.90625
.921875
.9375
.953125
.96875
.984375
1.000

Millimeters
13.097
13.494
13.891
14.288
14.684
15.081
15.478
15.875
16.272
16.669
17.066
17.463
17.859
18.256
18.653
19.050
19.447
19.844
20.241
20.638
21.034
21.431
21.828
22.225
22.622
23.019
23.416
23.813
24.209
24.606
25.003
25.400

Page 149

Synchronous Belt Product Design Catalogs
Gates Synchronous
Belt Products

Pitch

For Design Information Refer to:

®

®

8mm, 14mm

Poly Chain® GT® 2 Belt Drive Design Manual Catalog 17595

®

®

PowerGrip GT 2

5mm, 8mm, 14mm, 20mm

PowerGrip® Belt Systems Drive Design Manual Catalog 17195

PowerGrip® GT® 2

2mm, 3mm

Light Power & Precision Drives Design Manual Catalog 17183

PowerGrip® HTD®

3mm, 5mm

Light Power & Precision Drives Design Manual Catalog 17183

®

XL, L, H

PowerGrip® Belt Systems Drive Design Manual Catalog 17195

®

PowerGrip Timing

MXL, XL

Light Power & Precision Drives Design Manual Catalog 17183

Poly Chain® GT®
Long Length Belting

8mm,14mm

PowerGrip® Belt Systems Drive Design Manual Catalog 17195

PowerGrip® Timing
Long Length Belting

MXL, XL, L, H

PowerGrip® Belt Systems Drive Design Manual Catalog 17195

PowerGrip® HTD
Long Length Belting

3mm, 5mm, 8mm, 14mm HTD

PowerGrip® Belt Systems Drive Design Manual Catalog 17195

PowerGrip® GT®
Long Length Belting

2mm, 3mm, 5mm, 8mm PowerGrip GT

PowerGrip® Belt Systems Drive Design Manual Catalog 17195

Synchro-Power Polyurethane
Long Length Belting

T5, T10, T20, AT5, AT10, AT20, XL, L, H, XH, 5mm, 8mm,
14mm HTD

PowerGrip® Belt Systems Drive Design Manual Catalog 17195

Twin Power®

XL, L, H PowerGrip Timing, 8mm, 14mm PowerGrip GT2

PowerGrip® Belt Systems Drive Design Manual Catalog 17195

Poly Chain GT 2

PowerGrip Timing

Synchronous Belt Product Listing
Product
Short Length Poly Chain GT

Page 150

Page
151

Poly Chain GT2

151

PowerGrip GT2

152-154

PowerGrip HTD

155

PowerGrip Timing

156-157

PowerGrip GT2 Twin Power

158

PowerGrip Twin Power Timing

159-160

PowerGrip Timing Long Length Belting

161

Poly Chain GT Long Length Belting

161

PowerGrip HTD Long Length Belting

162

PowerGrip GT Long Length Belting

162

Synchro-Power Polyurethane Long Length Belting

163-164

R

The Gates Rubber Company

®

®

8mm Pitch Poly Chain GT2 and Short Length Poly Chain GT Belts
8M and 8MGT Stock Belt Lengths
Pitch Length

Part
No.

(mm)

8M-248
8M-288
8M-352
8M-416
8M-456
8M-480
8M-544
8M-608
8MGT-640
8MGT-720
8MGT-800
8MGT-896
8MGT-1000
8MGT-1120

248
288
352
416
456
480
544
608
640
720
800
896
1000
1120

Pitch Length

(in)

No. of
Teeth

Part
No.

(mm)

(in)

No. of
Teeth

9.77
11.34
13.86
16.38
17.96
18.90
21.42
23.94
25.20
28.35
31.50
35.28
39.38
44.10

31
36
44
52
57
60
68
76
80
90
100
112
125
140

8MGT-1200
8MGT-1280
8MGT-1440
8MGT-1600
8MGT-1792
8MGT-2000
8MGT-2240
8MGT-2400
8MGT-2520
8MGT-2840
8MGT-3200
8MGT-3600
8MGT-4000
8MGT-4480

1200
1280
1440
1600
1792
2000
2240
2400
2520
2840
3200
3600
4000
4480

47.25
50.40
56.70
63.00
70.56
78.75
88.20
94.50
99.23
111.83
126.00
141.75
157.50
176.40

150
160
180
200
224
250
280
300
315
355
400
450
500
560

8M Short Length Stock Belt Widths

8MGT Stock Belt Widths

Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

12
21
36

12
21
36

0.472
0.827
1.417

12
21
36
62

12
21
36
62

0.472
0.827
1.417
2.441

14mm Pitch Poly Chain GT2 Stock Belts
14MGT Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

14MGT-994
14MGT-1120
14MGT-1190
14MGT-1260
14MGT-1400
14MGT-1568
14MGT-1750
14MGT-1890
14MGT-1960
14MGT-2100

994
1120
1190
1260
1400
1568
1750
1890
1960
2100

39.13
44.09
46.85
49.60
55.11
61.73
68.89
74.40
77.16
82.67

71
80
85
90
100
112
125
135
140
150

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

14MGT-2240
14MGT-2380
14MGT-2520
14MGT-2660
14MGT-2800
14MGT-3136
14MGT-3304
14MGT-3500
14MGT-3920
14MGT-4410

2240
2380
2520
2660
2800
3136
3304
3500
3920
4410

88.18
93.69
99.20
104.71
110.23
123.45
130.07
137.78
154.32
173.60

160
170
180
190
200
224
236
250
280
315

14MGT Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

20
37
68
90
125

20
37
68
90
125

0.787
1.457
2.677
3.543
4.921

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2mm Pitch PowerGrip GT 2 Stock Belts
2MR Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

2MR-100
2MR-112
2MR-126
2MR-134
2MR-136
2MR-140
2MR-152
2MR-158
2MR-160
2MR-164
2MR-166
2MR-168
2MR-172
2MR-180
2MR-192
2MR-200
2MR-202
2MR-210
2MR-212
2MR-216
2MR-220
2MR-232
2MR-236
2MR-240
2MR-250
2MR-252
2MR-258

100
112
126
134
136
140
152
158
160
164
166
168
172
180
192
200
202
210
212
216
220
232
236
240
250
252
258

3.94
4.41
4.96
5.28
5.35
5.51
5.98
6.22
6.30
6.46
6.54
6.61
6.77
7.09
7.56
7.87
7.95
8.27
8.35
8.50
8.66
9.13
9.29
9.45
9.84
9.92
10.16

50
56
63
67
68
70
76
79
80
82
83
84
86
90
96
100
101
105
106
108
110
116
118
120
125
126
129

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

2MR-278
2MR-280
2MR-300
2MR-320
2MR-322
2MR-346
2MR-350
2MR-364
2MR-370
2MR-380
2MR-386
2MR-400
2MR-406
2MR-420
2MR-456
2MR-470
2MR-474
2MR-488
2MR-504
2MR-528
2MR-552
2MR-576
2MR-600
2MR-640
2MR-696
2MR-744
2MR-1164

278
280
300
320
322
346
350
364
370
380
386
400
406
420
456
470
474
488
504
528
552
576
600
640
696
744
1164

10.94
11.02
11.81
12.60
12.68
13.62
13.78
14.33
14.57
14.96
15.20
15.75
15.98
16.54
17.95
18.50
18.66
19.21
19.84
20.79
21.73
22.68
23.62
25.20
27.40
29.29
45.83

139
140
150
160
161
173
175
182
185
190
193
200
203
210
228
235
237
244
252
264
276
288
300
320
348
372
582

2MR Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

04
06
09

4
6
9

0.157
0.236
0.354

3mm Pitch PowerGrip GT2 Stock Belts
3MR Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

3MR-165
3MR-189
3MR-201
3MR-219
3MR-225
3MR-240
3MR-243
3MR-267
3MR-282
3MR-291
3MR-300
3MR-339
3MR-348
3MR-357
3MR-360
3MR-375
3MR-420

165
189
201
219
225
240
243
267
282
291
300
339
348
357
360
375
420

6.50
7.44
7.91
8.62
8.86
9.45
9.57
10.51
11.10
11.46
11.81
13.35
13.70
14.06
14.17
14.76
16.54

No. of
Teeth
55
63
67
73
75
80
89
94
97
100
113
116
119
120
125
140

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

3MR-447
3MR-450
3MR-474
3MR-480
3MR-483
3MR-489
3MR-537
3MR-600
3MR-630
3MR-684
3MR-750
3MR-840
3MR-945
3MR-1050
3MR-1080
3MR-1536
3MR-2061

447
450
474
480
483
489
537
600
630
684
750
840
945
1050
1080
1536
2062

17.60
17.72
18.66
18.90
19.02
19.25
21.14
23.62
24.80
26.93
29.53
33.07
37.20
41.34
42.52
60.47
81.18

149
150
158
160
161
163
179
200
210
228
250
280
315
350
360
512
687

3MR Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

06
09
15

6
9
15

0.236
0.354
0.591

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5mm Pitch PowerGrip GT 2 Stock Belt Lengths
5MR Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

5MR-300
5MR-355
5MR-375
5MR-400
5MR-405
5MR-425
5MR-450
5MR-500
5MR-535
5MR-565
5MR-580
5MR-600
5MR-625

300
355
375
400
405
425
450
500
535
565
580
600
625

11.81
13.98
14.76
15.75
15.94
16.73
17.72
19.69
21.06
22.24
22.83
23.62
24.61

60
71
75
80
81
85
90
100
107
113
116
120
125

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

5MR-650
5MR-700
5MR-750
5MR-800
5MR-850
5MR-900
5MR-1000
5MR-1150
5MR-1300
5MR-1450
5MR-1600
5MR-1720
5MR-2100

650
700
750
800
850
900
1000
1150
1300
1450
1600
1720
2100

25.59
27.56
29.53
31.50
33.46
35.43
39.37
45.28
51.18
57.09
62.99
67.72
82.67

130
140
150
160
170
180
200
230
260
290
320
344
420

5MR Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

09
15
25

9
15
25

0.354
0.591
0.984

8mm Pitch PowerGrip GT2 Belts
8MGT Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

384-8MGT
480-8MGT
560-8MGT
600-8MGT
640-8MGT
720-8MGT
800-8MGT
840-8MGT
880-8MGT
920-8MGT
960-8MGT
1040-8MGT
1064-8MGT
1120-8MGT
1160-8MGT
1200-8MGT
1224-8MGT

384
480
560
600
640
720
800
840
880
920
960
1040
1064
1120
1164
1200
1224

15.12
18.89
22.05
23.62
25.20
28.35
31.50
33.07
34.65
36.22
37.80
40.94
41.89
44.09
45.67
47.24
48.19

48
60
70
75
80
90
100
105
110
115
120
130
133
140
145
150
153

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

1280-8MGT
1440-8MGT
1512-8MGT
1584-8MGT
1600-8MGT
1760-8MGT
1800-8MGT
2000-8MGT
2200-8MGT
2400-8MGT
2600-8MGT
2800-8MGT
3048-8MGT
3280-8MGT
3600-8MGT
4400-8MGT

1280
1440
1512
1584
1600
1760
1800
2000
2200
2400
2600
2800
3048
3280
3600
4400

50.39
56.69
59.53
62.36
62.99
69.29
70.87
78.74
86.61
94.49
102.36
110.24
120.00
129.13
141.73
173.23

160
180
189
198
200
220
225
250
275
300
325
350
381
410
450
550

8MGT Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

20
30
50
85

20
30
50
85

0.787
1.181
1.969
3.346

Refer to the Industrial Power Transmission Products catalog, 19993, for a listing of 8mm and 14mm pitch PowerGrip GT belts for replacement use on
existing PowerGrip GT or HTD drives.

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14mm Pitch PowerGrip GT 2 Belts
14MGT Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

966-14MGT
1190-14MGT
1400-14MGT
1610-14MGT
1778-14MGT
1890-14MGT
2100-14MGT
2310-14MGT
2450-14MGT
2590-14MGT
2800-14MGT

966
1190
1400
1610
1778
1890
2100
2310
2450
2590
2800

38.03
46.85
55.12
63.39
70.00
74.41
82.63
90.94
96.46
101.97
110.24

69
85
100
115
127
135
150
165
175
185
200

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

3150-14MGT
3360-14MGT
3500-14MGT
3850-14MGT
4326-14MGT
4578-14MGT
4956-14MGT
5320-14MGT
5740-14MGT
6160-14MGT
6860-14MGT

3150
3360
3500
3850
4326
4578
4956
5320
5740
6160
6860

124.02
132.28
137.80
151.57
170.32
180.24
195.12
209.45
225.98
242.52
270.08

225
240
250
275
309
327
354
380
410
440
490

14MGT Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

40
55
85
115
170

40
55
85
115
170

1.575
2.165
3.346
4.528
6.693

Refer to the Industrial Power Transmission Products catalog, 19993, for a listing of 8mm and 14mm pitch PowerGrip GT belts for replacement use on
existing PowerGrip GT or HTD drives.

20mm Pitch PowerGrip GT2 Stock Belt Lengths
20M Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

2000-20M
2500-20M
3400-20M
3800-20M
4200-20M
4600-20M
5000-20M
5200-20M

2000
2500
3400
3800
4200
4600
5000
5200

78.74
98.43
133.86
149.61
165.35
181.10
196.85
204.72

100
125
170
190
210
230
250
260

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

5400-20M
5600-20M
5800-20M
6000-20M
6200-20M
6400-20M
6600-20M

5400
5600
5800
6000
6200
6400
6600

212.60
220.47
228.35
236.22
244.09
251.97
259.84

270
280
290
300
310
320
330

20M Stock Belt Widths
Belt Widt
Code

Belt Width
(mm)

Belt Width
(in)

115
170
230
290
340

115
170
230
290
340

4.528
6.693
9.055
11.417
13.386

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3mm Pitch PowerGrip HTD Belts
3M Stock Belt Widths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

150-3M
159-3M
168-3M
177-3M
189-3M
201-3M
213-3M
225-3M
240-3M
252-3M
255-3M
267-3M
285-3M
300-3M
312-3M
318-3M
339-3M
357-3M
363-3M
384-3M
390-3M
399-3M

150
159
168
177
189
201
213
225
240
252
255
267
285
300
312
318
339
357
363
384
390
399

5.91
6.26
6.61
6.97
7.44
7.91
8.39
8.86
9.45
9.92
10.04
10.51
11.22
11.81
12.28
12.52
13.35
14.06
14.29
15.12
15.35
15.71

50
53
56
59
63
67
71
75
80
84
85
89
95
100
104
106
113
119
121
128
130
133

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

420-3M
447-3M
474-3M
486-3M
501-3M
513-3M
531-3M
564-3M
597-3M
633-3M
669-3M
711-3M
753-3M
795-3M
843-3M
882-3M
945-3M
1002-3M
1062-3M
1125-3M
1191-3M
1263-3M

420
447
474
486
501
513
531
564
597
633
669
711
753
795
843
882
945
1002
1062
1125
1191
1263

16.54
17.60
18.66
19.13
19.72
20.20
20.91
22.20
23.50
24.92
26.34
27.99
29.65
31.30
33.19
34.72
37.20
39.45
41.81
44.29
46.89
49.72

140
149
158
162
167
171
177
188
199
211
223
237
251
265
281
294
315
334
354
375
397
421

3M HTD Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

06
09
15

6
9
15

0.236
0.354
0.591

5mm Pitch PowerGrip HTD Belts
5M Stock Belt Widths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

350-5M
375-5M
400-5M
425-5M
450-5M
475-5M
500-5M
535-5M
565-5M
600-5M
635-5M
670-5M
710-5M
740-5M
800-5M
850-5M

350
375
400
425
450
475
500
535
565
600
635
670
710
740
800
850

13.78
14.76
15.75
16.73
17.72
18.70
19.69
21.06
22.24
23.62
25.00
26.38
27.95
29.13
31.50
33.46

70
75
80
85
90
95
100
107
113
120
127
134
142
148
160
170

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

890-5M
950-5M
1000-5M
1050-5M
1125-5M
1195-5M
1270-5M
1420-5M
1595-5M
1690-5M
1790-5M
1895-5M
2000-5M
2250-5M
2525-5M

890
950
1000
1050
1125
1195
1270
1420
1595
1690
1790
1895
2000
2250
2525

35.04
37.40
39.37
41.34
44.29
47.05
50.00
55.91
62.80
66.54
70.47
74.61
78.74
88.58
99.40

178
190
200
210
225
239
254
284
319
338
358
379
400
450
505

5M HTD Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

09
15
25

9
15
25

0.354
0.591
0.984

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MXL Pitch PowerGrip Timing Belts
MXL Stock Belt Lengths
Part
No.

Pitch Length
(in)

No.
of Teeth

Part
No.

Pitch Length
(in)

No.
of Teeth

36MXL
40MXL
44MXL
48MXL
56MXL
64MXL
68MXL
72MXL
76MXL
80MXL
88MXL
96MXL
104MXL

3.60
4.00
4.40
4.80
5.60
6.40
6.80
7.20
7.60
8.00
8.80
9.60
10.40

45
50
55
60
70
80
85
90
95
100
110
120
130

112MXL
120MXL
132MXL
140MXL
152MXL
160MXL
168MXL
180MXL
200MXL
208MXL
236MXL
240MXL
320MXL

11.20
12.00
13.20
14.00
15.20
16.00
16.80
18.00
20.00
20.80
23.60
24.00
32.00

140
150
165
175
190
200
210
225
250
260
295
300
400

Part No.

Pitch Length
(in)

No. of
Teeth

260XL
280XL
290XL
300XL
310XL
330XL
340XL
350XL
370XL
380XL
390XL
400XL
420XL
450XL
460XL
480XL
500XL
570XL
630XL
770XL

26.00
28.00
29.00
30.00
31.00
33.00
34.00
35.00
37.00
38.00
39.00
40.00
42.00
45.00
46.00
48.00
50.00
57.00
63.00
77.00

130
140
145
150
155
165
170
175
185
190
195
200
210
225
230
240
250
285
315
385

MXL Stock Belt Widths
Belt Width
Code

Belt Width
(in)

012
019
025

0.125
0.188
0.250

XL Pitch PowerGrip Timing Belts
XL Stock Belt Lengths
Part No.

Pitch Length
(in)

No. of
Teeth

50XL
60XL
70XL
80XL
90XL
100XL
110XL
120XL
130XL
140XL
150XL
160XL
170XL
180XL
190XL
200XL
210XL
220XL
230XL
240XL
250XL

5.00
6.00
7.00
8.00
9.00
10.00
11.00
12.00
13.00
14.00
15.00
16.00
17.00
18.00
19.00
20.00
21.00
22.00
23.00
24.00
25.00

25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125

XL Stock Belt Widths
Belt Width
Code

Belt Width
(in)

025
037

0.250
0.375

Page 156

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L Pitch PowerGrip Timing Belts
L Stock Belt Lengths
Part No.

Pitch Length
(in)

No. of
Teeth

124L
135L
150L
165L
187L
195L
210L
225L
240L
255L
270L
285L
300L
315L

12.38
13.50
15.00
16.50
18.75
19.50
21.00
22.50
24.00
25.50
27.00
28.50
30.00
31.50

33
36
40
44
50
52
56
60
64
68
72
76
80
84

Part No.

Pitch Length
(in)

No. of
Teeth

322L
345L
367L
390L
420L
450L
480L
510L
540L
600L
660L
817L
900L

32.25
34.50
36.75
39.00
42.00
45.00
48.00
51.00
54.00
60.00
66.00
81.75
90.00

86
92
98
104
112
120
128
136
144
160
176
218
240

L Stock Belt Widths
Belt Width
Code

Belt Width
(in)

050
075
100

0.500
0.750
1.000

H Pitch PowerGrip Timing Belts
H Stock Belt Lengths
Part No.

Pitch Length

No. of Teeth

Part No.

Pitch Length

No. of Teeth

210H
220H
230H
240H
270H
300H
320H
330H
340H
350H
360H
370H
390H
400H
410H
420H
450H
480H
490H
510H
540H
560H
570H

21.00
22.00
23.00
24.00
27.00
30.00
32.00
33.00
34.00
35.00
36.00
37.00
39.00
40.00
41.00
42.00
45.00
48.00
49.00
51.00
54.00
56.00
57.00

42
44
46
48
54
60
64
66
68
70
72
74
78
80
82
84
90
96
98
102
108
112
114

585H
600H
630H
645H
660H
700H
730H
750H
780H
800H
820H
840H
850H
900H
960H
1000H
1100H
1140H
1250H
1400H
1550H
1700H

58.50
60.00
63.00
64.50
66.00
70.00
73.00
75.00
78.00
80.00
82.00
84.00
85.00
90.00
96.00
100.00
110.00
114.00
125.00
140.00
155.00
170.00

117
120
126
129
132
140
146
150
156
160
164
168
170
180
192
200
220
228
250
280
310
340

H Stock Belt Widths
Belt Width
Code

Belt Width
(in)

75
100
150
200
300

0.750
1.000
1.500
2.000
3.000

Refer to the Industrial Power Transmission Products catalog, 19993, for a listing of XH and XXH PowerGrip Timing belts for replacement use on
existing drives.

R

The Driving Force in Power Transmission.

Page 157

®

®

®

8mm Pitch PowerGrip GT 2 Twin Power Belts
TP 8MGT Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

TP840-8MGT
TP880-8MGT
TP920-8MGT
TP960-8MGT
TP1040-8MGT
TP1120-8MGT
TP1200-8MGT
TP1224-8MGT
TP1280-8MGT
TP1440-8MGT
TP1600-8MGT

840
880
920
960
1040
1120
1200
1224
1280
1440
1600

33.08
34.65
36.23
37.80
40.95
44.10
47.25
48.20
50.40
56.70
63.00

105
110
115
120
130
140
150
153
160
180
200

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

TP1760-8MGT
TP1800-8MGT
TP2000-8MGT
TP2200-8MGT
TP2400-8MGT
TP2600-8MGT
TP2800-8MGT
TP3048-8MGT
TP3280-8MGT
TP3600-8MGT
TP4400-8MGT

1760
1800
2000
2200
2400
2600
2800
3048
3280
3600
4400

69.30
70.88
78.75
86.63
94.50
102.38
110.25
120.02
129.15
141.75
173.25

220
225
250
275
300
325
350
381
410
450
550

8MGT2 Twin Power Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

20
30
50
85

20
30
50
85

0.787
1.181
1.969
3.346

14mm Pitch PowerGrip GT2 Twin Power Belts
TP 14MGT Stock Belt Lengths
Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

TP966-14MGT
TP1190-14MGT
TP1400-14MGT
TP1610-14MGT
TP1778-14MGT
TP1890-14MGT
TP2100-14MGT
TP2310-14MGT
TP2450-14MGT

966
1190
1400
1610
1778
1890
2100
2310
2450

38.03
46.85
55.12
63.38
70.00
74.41
82.67
90.94
96.45

69
85
100
115
127
135
150
165
175

Pitch Length
Part No.

(mm)

(in)

No. of
Teeth

TP2590-14MGT
TP2800-14MGT
TP3150-14MGT
TP3360-14MGT
TP3500-14MGT
TP3850-14MGT
TP4326-14MGT
TP4578-14MGT

2590
2800
3150
3360
3500
3850
4326
4578

101.96
110.23
124.01
132.28
137.79
151.57
170.31
180.23

185
200
225
240
250
275
309
327

14MGT2 Twin Power Stock Belt Widths
Belt Width
Code

Belt Width
(mm)

Belt Width
(in)

40
55
85

40
55
85

1.575
2.165
3.346

Refer to the Industrial Power Transmission Products catalog, 19993, for a listing of 8mm and 14mm pitch PowerGrip GT Twin Power belts for replacement
use on existing PowerGrip GT or HTD Twin Power drives.

Page 158

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The Gates Rubber Company

®

®

XL Pitch PowerGrip Twin Power Timing Belts
Stock Belt Lengths
Part No.

Pitch Length
(in)

No. of
Teeth

Part No.

Pitch Length
(in)

No. of
Teeth

TP140XL
TP150XL
TP160XL
TP170XL
TP180XL
TP190XL
TP200XL
TP210XL
TP220XL
TP230XL

14.00
15.00
16.00
17.00
18.00
19.00
20.00
21.00
22.00
23.00

70
75
80
85
90
95
100
105
110
115

TP240XL
TP250XL
TP260XL
TP270XL
TP280XL
TP290XL
TP300XL
TP310XL
TP330XL
TP340XL

24.00
25.00
26.00
27.00
28.00
29.00
30.00
31.00
33.00
34.00

120
125
130
135
140
145
150
155
165
170

XL Twin Power Stock Belt Widths
Belt Width
Code

Belt Width
(in)

025
037

0.250
0.375

L Pitch PowerGrip Twin Power Timing Belts
Stock Belt Lengths
Part No.

Pitch Length
(in)

No. of
Teeth

TP150L
TP165L
TP187L
TP195L
TP210L
TP225L
TP240L
TP255L
TP270L
TP285L
TP300L
TP322L

15.00
16.50
18.75
19.50
21.00
22.50
24.00
25.50
27.00
28.50
30.00
32.25

40
44
50
52
56
60
64
68
72
76
80
86

Part No.

Pitch Length
(in)

No. of
Teeth

TP345L
TP367L
TP390L
TP420L
TP450L
TP480L
TP510L
TP540L
TP600L
TP660L
TP817L

34.50
36.75
39.00
42.00
45.00
48.00
51.00
54.00
60.00
66.00
81.75

92
98
104
112
120
128
136
144
160
176
218

L Twin Power, Stock Belt Widths
Belt Width
Code

Belt Width
(in)

050
075
100

0.500
0.750
1.000

R

The Driving Force in Power Transmission.

Page 159

®

®

H Pitch PowerGrip Twin Power Timing Belts
Stock Belt Lengths
Part No.

Pitch Length
(in)

No. of
Teeth

TP240H
TP270H
TP300H
TP330H
TP350H
TP360H
TP390H
TP400H
TP420H
TP450H
TP480H
TP510H
TP540H
TP570H

24.00
27.00
30.00
33.00
35.00
36.00
39.00
40.00
42.00
45.00
48.00
51.00
54.00
57.00

48
54
60
66
70
72
78
80
84
90
96
102
108
114

Part No.

Pitch Length
(in)

No. of
Teeth

TP600H
TP630H
TP660H
TP700H
TP750H
TP800H
TP850H
TP900H
TP1000H
TP1100H
TP1250H
TP1400H
TP1700H

60.00
63.00
66.00
70.00
75.00
80.00
85.00
90.00
100.00
110.00
125.00
140.00
170.00

120
126
132
140
150
160
170
180
200
220
250
280
340

H Twin Power Stock Belt Widths
Belt Width
Code

Belt Width
(in)

075
100
150
200
300

0.750
1.000
1.500
2.000
3.000

Page 160

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The Gates Rubber Company

®

PowerGrip Timing — Long Length Belting
Mini-Pitch (0.080/MXL) — Fiberglass Tensile

1/5 Pitch (0.200/XL) - Steel Tensile

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL025MXL
LL037MXL
LL050MXL

9314-2020
9314-2014
9314-2038

1⁄
4
3⁄
8
1⁄
2

0.01
0.02
0.02

LL025XLST
LL037XLST
LL050XLST

9314-10028
9314-10029
9314-10030

1⁄
4
3⁄
8
1⁄
2

0.064
0.072
0.082

1/5 Pitch (0.200/XL) - Fiberglass Tensile

3/8 Pitch (0.375/L) - Steel Tensile

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL025XL
LL037XL
LL050XL
LL075XL

9314-0001
9314-0002
9314-2012
9314-2090

1⁄
4
3⁄
8
1⁄
2
3⁄
4

0.01
0.01
0.03
0.04

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL050LST
LL075LST

9314-10035
9314-10036

1⁄
2
3⁄
4

0.163
0.198

1/2" Pitch (0.500"/H) - Steel Tensile
3/8 Pitch (0.375/L) - Fiberglass Tensile
Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL037L
LL050L
LL075L
LL100L

9314-2089
9314-0004
9314-0007
9314-0015

3⁄
8
1⁄
2
3⁄
4

0.02
0.02
0.04
0.05

1

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL075HST
LL100HST

9314-10011
9314-10037

3/4
1

0.229
0.253

1/2" Pitch (0.500"/H) - Fiberglass Tensile
Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL050H
LL075H
LL100H
LL150H
LL200H
LL300H

9314-0003
9314-0006
9314-0008
9314-0017
9314-0021
9314-0025

1⁄
2
3⁄
4

0.04
0.06
0.12
0.12
0.16
0.24

1
11⁄2
2
3

Poly Chain GT Long Length Belting
8mm - 14mm Pitch
Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL8M012GT
LL8M021GT
LL8M036GT
LL14M020GT
LL14M037GT

9305-0001
9305-0002
9305-0003
9305-0005
9305-0006

12
21
36
20
37

0.03
0.06
0.11
0.10
0.19

R

The Driving Force in Power Transmission.

Page 161

®

®

PowerGrip HTD — Long Length Belting
PowerGrip HTD - Long Length Belting

PowerGrip HTD Belting - Fiberglass Tensile
3mm - 5mm - 8mm - 14mm Pitch

PowerGrip HTD Belting - Steel Tensile
14mm Pitch

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL3M06
LL3M09
LL3M15
LL5M09
LL5M15
LL5M25
LL8M20
LL8M30
LL8M50
LL8M85
LL14M40
LL14M55
LL14M85

9308-0044
9308-0003
9308-0084
9308-0045
9308-0033
9308-0025
9308-0001
9308-0004
9308-0005
9308-0006
9308-10009
9308-10020
9308-10057

6
9
15
9
15
25
20
30
50
85
40
55
85

0.01
0.01
0.01
0.01
0.01
0.05
0.08
0.13
0.21
0.36
0.26
0.35
0.55

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL14M40ST
LL14M55ST
LL14M85ST

9308-10016
9308-10051
9308-10084

40
55
85

0.76
1.02
1.51

PowerGrip GT - Long Length Belting
PowerGrip GT - Fiberglass Tensile
2mm - 3mm - 5mm - 8mm Pitch

PowerGrip GT - Steel Tensile
5mm - 8mm Pitch

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL2MR04
LL2MR06
LL2MR09
LL3MR06
LL3MR09
LL3MR15
LL5MR09
LL5MR15
LL5MR25
LL8MR20
LL8MR30
LL8MR50
LL8MR85

9396-0033
9396-0009
9396-0011
9396-0002
9396-0012
9396-0021
9396-0020
9396-0025
9396-0018
9396-0029
9396-0030
9396-0031
9396-0032

4
6
9
6
9
15
9
15
25
20
30
50
85

0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.05
0.08
0.13
0.21
0.36

Page 162

R

Part No.

Product
No.

Width
(in)

Net Wt. /ft.
(lbs)

LL5MR15ST
LL5MR25ST
LL8MR20ST
LL8MR30ST
LL8MR50ST

9308-10043
9308-40417
9308-10049
9308-10050
9308-40433

15
25
20
30
50

0.18
0.23
0.29
0.37
0.53

The Gates Rubber Company

®

Synchro-Power PolyUrethane Long Length Belting
T5 Pitch

AT5 Pitch

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

U6T5LL
U8T5LL
U10T5LL
U12T5LL
U16T5LL
U20T5LL
U25T5LL
U32T5LL
U50T5LL

6
8*
10
12*
16
20*
25
32
50

.01
.01
.02
.02
.03
.03
.04
.05
.08

U6AT5LL
U10AT5LL
U16AT5LL
U20AT5LL
U25AT5LL
U32AT5LL
U50AT5LL

6
10
16
20
25
32
50

.01
.02
.03
.04
.05
.06
.10

Width
(mm)

Wt. per ft.
(lbs)

T10 Pitch
Part
No.
U12T10LL
U16T10LL
U20T10LL
U25T10LL
U32T10LL
U40T10LL
U50T10LL
U75T10LL
U100T10LL

AT10 Pitch
Width
(mm)
12*
16
20*
25
32
40*
50
75
100

Wt. per ft.
(lbs)

Part
No.

.04
.05
.07
.08
.11
.13
.16
.25
.33

U16AT10LL
U20AT10LL
U25AT10LL
U32AT10LL
U40AT10LL
U50AT10LL
U75AT10LL
U100AT10LL

T20 Pitch

16
20*
25
32
40*
50
75*
100*

.06
.08
.10
.13
.16
.20
.30
.40

AT20 Pitch

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

Part
No.

U25T10LL
U32T20LL
U50T20LL
U75T20LL
U100T20LL

25*
32*
50*
75*
100*

.13
.17
.27
.40
.54

U25AT20LL
U32AT20LL
U50AT20LL
U75AT20LL
U100AT20LL
U120AT20LL
U150AT20LL

*Standard/Non-Stock item, may require manufacturing lead time.

Width
(mm)
25*
32*
50*
75*
100*
120*
150*

Wt. per ft.
(lbs)
.17
.22
.34
.50
.67
.81
1.01

*Standard/Non-Stock item, may require manufacturing lead time.

R

The Driving Force in Power Transmission.

Page 163

®

Synchro-Power PolyUrethane Long Length Belting
1/5"Pitch (0.200"/XL)

5mm Pitch HTD

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

U.25INXL LL
U.31INXL LL
U.375INXL LL
U.50INXL LL
U.75INXL LL
U1.00INXL LL
U2.00INXL LL

.250*
.310*
.375*
.500*
.750*
1.000*
2.000*

.01
.01
.01
.02
.03
.03
.07

U10MTD5MLL
U15MTD5MLL
U25MTD5MLL
U50MTD5MLL

10*
15*
25*
50*

.03
.04
.07
.13

3/8" Pitch (0.375"/L)
Part
No.
U.375INL LL
U.50INL LL
U.75INL LL
U1.00INL LL
U1.50INL LL
U2.00INL LL

8mm Pitch HTD
Width
(mm)
.375
.500
.750
1.000
1.500*
2.000*

Wt. per ft.
(lbs)

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

.02
.02
.03
.04
.06
.08

U10MTD8MLL
U15MTD8MLL
U20MTD8MLL
U30MTD8MLL
U50MTD8MLL
U85MTD8MLL
U100MTD8MLL

10*
15*
20*
30*
50*
85*
100*

.04
.06
.08
.13
.21
.36
.42

1/2" Pitch (0.500"/H)

14MM Pitch HTD

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

U.50INH LL
U.75INH LL
U1.00INH LL
U1.50INH LL
U2.00INH LL
U3.00INH LL
U4.00INH LL

.500
.750
1.000
1.500
2.000
3.000*
4.000*

.02
.04
.05
.07
.09
.14
.19

U25MTD14MLL
U40MTD14MLL
U55MTD14MLL
U85MTD14MLL
U100MTD14MLL

25*
40*
55*
85*
100*

.19
.30
.41
.64
.75

Part
No.

Width
(mm)

Wt. per ft.
(lbs)

U1.00INXHLL
U1.50INXHLL
U2.00INXHLL
U3.00INXHLL
U4.00INXHLL

1.000*
1.500*
2.000*
3.000*
4.000*

.22
.32
.43
.65
.86

*Standard/Non-Stock item, may require manufacturing lead time.

7/8" Pitch (0.875"/XH)

*Standard/Non-Stock item, may require manufacturing lead time.

Page 164

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The Gates Rubber Company

Application Examples
The following illustrations show a few of the many ways that PowerGrip belt drives can be used to transmit both power and
motion. Synchronous belt drive systems are amazingly versatile, yet reliable and efficient. The examples that follow utilize
conventional endless, Long-Length and Twin Power belting, all of which is readily available.

Common Drive Configurations

Multiple Shaft Drive Configurations

R

The Driving Force in Power Transmission.

Page 165

Application Examples — continued
Serpentine Drive Configurations

Conveying and Material Transport Applications

Page 166

R

The Gates Rubber Company

Application Examples — continued
Rack and Carriage Drive Configurations

Long Length Drive Applications

R

The Driving Force in Power Transmission.

Page 167

Application Examples — continued
Complex Carriage Drive Configuration

Lead Screw Drive Applications

Page 168

R

The Gates Rubber Company

The Gates Rubber Company
990 South Broadway
P.O. Box 5887
Denver, CO 80217
For more information on any of Gates
Industrial Power Transmission products,
programs or services, contact your local
Gates representative, call the Gates
Belt Information Line at 800-777-6363,
or visit us at www.gates.com.

Gates Canada, Inc.
300 Henry Street
Brantford, ON N3S 7R5
Telephone: 519-759-4141
Fax: 519-759-0944

Your Local Distributor
PowerGrip© GT©2 Belt Drive Design Manual

THE DRIVING FORCE

IN

POWER TRANSMISSION

#17195
March 2000

© 2000 The Gates Rubber Company
All rights reserved. Form 17195
Printed in the U.S.A.



---

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File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : Yes
Create Date                     : 2000:04:08 09:49:53
Producer                        : Acrobat Distiller 4.0 for Windows
Modify Date                     : 2000:10:18 12:14:31-06:00
Title                           : Gates PowerGrip® GT®2 Drive Design Manual
Author                          : S. Wayne Carrel
Page Count                      : 179

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