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

2015-02-09

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Racehorse

PowerGrip

2 Belt Drives

For more power at less

cost in high-speed

applications.

Racehorse

THE DRIVING FORCE IN POWER TRANSMISSION

Drive Design Manual

Table of Contents

Description Page 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

PowerGrip®Timing Belt Pitch Selection Guide . . 11

NEMA Minimum Recommended

Sprocket Outside Diameters . . . . . . . . . . 12

PowerGrip GT2 Belt Drives . . . . . . . . . . . . . . . 13

Stock Lengths and Widths. . . . . . . . . . . . . 14

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

Belt Drive Selection Tables

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 . . . . . . . . . . . 75-76

L, 0.375″Pitch Belts . . . . . . . . . . . . 77-79

H, 0.500″Pitch Belts . . . . . . . . . . . . 80-84

Long Length Belting . . . . . . . . . . . . . . . . . 85-94

PowerGrip Twin Power Belts . . . . . . . . . . . . 95-97

Drive Selection Procedure . . . . . . . . . . . 98-99

PowerGrip GT2 Sprocket Specifications. . . . . . . . 100

Sprocket Specifications Tables

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

Belt Drive Tensioners . . . . . . . . . . . . . . . . . 125

PowerGrip GT2 Idler Sprockets . . . . . . . . . . . . 125

Sprocket Specification Tables. . . . . . . . 126-129

Engineering Data . . . . . . . . . . . . . . . . . . . 130

Section I—Application Design Considerations. . 130

1. Gear Motors/Speed Reducer Drives . . . 130

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

3. Minimum Recommended Sprocket

Diameters for General Purpose

Electric Motors . . . . . . . . . . . . . . 132

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

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

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

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

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

The Gates Rubber Company

Denver, Colorado 80217 Printed in U.S. of America

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.

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.

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.

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!

Low speed. High speed. And any speed in between.

Gates has your total synchronous belt drive system solution!

●

Taper-Lock

sprockets & bushings.

Poly Chain GT2 and PowerGrip GT2

belt drive systems feature Taper-

Lock bushings. Advantages of

the Taper-Lock system include:

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

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.

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 sav-

ings calculations, installation and

system cost savings. The CD also

contains eight instructional videos

covering topics such as belt drive

troubleshooting, tensioning, safety

and installation. The Compass

CD-ROM is available through

authorized Gates Industrial

Power Transmission Distributors.

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 opera-

tion. You’re backed by the indus-

try’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 pro-

grams. Nobody is as committed

to supporting you as Gates!

It’s obvious!

Gates is your total

synchronous drive solution.

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.

®Taper-Lock is a registered trademark

of the Reliance Electric Corporation.

▲Design Flex II

™

Design OHL

™

▲

▲Design View

™

●

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 curvilin-

ear 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 pre-

cision-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 prevent-

ing 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.

The belt teeth have a deep design

for robustness and excellent ratch-

eting 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

contact area of the belt teeth has

been increased significantly over

other curvilinear belt drive sys-

tems. This greatly increases sur-

face contact area and prevents

belt tooth distortion in the sprock-

et grooves under heavy torque

loads. This results in long, trouble-

free service. The belt tooth and

sprocket groove curvatures were

also designed to fit closely togeth-

er with a minimum of backlash.

This means more accurate posi-

tioning 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, convey-

ors and machine tools. Gates

offers belts in a full range of

standard configurations. Custom-

built constructions are also avail-

able for individual applications that

require maximum performance.

Quiet operation.

The PowerGrip GT2 belt’s specially

engineered teeth mesh cleanly

with sprocket grooves to reduce

noise and vibration. Clean meshing

results in significant noise reduc-

tion 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 remark-

able. 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 bush-

ing system with an industry-proven

track record of robustness and

reliability.

Taper-Lock bushings allow easy

sprocket installation and removal.

Their compact design allows nar-

row 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

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: Gates Rubber Company

900 So. Broadway

Denver, Colorado 80217-5887

303 - 744 - 5800

Application: ENERGY SAVINGS - 50 HP

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

Price Price

S-Belt PartNo: 2600-8MGT-50 $ 102.80 V-Belt Part No: 4 / 5VX1000 $ 73.30

DriveR Sprocket: P72-8MGT-50 $ 120.94 DriveR Sheave: QD4/5V7.10 $ 90.05

DriveR Bushing: 2517 2.1/8 $ 13.85 DriveR Bushing: SF 2.1/8 $ 18.57

DriveN Sprocket: P112-8MGT-50 $ 187.88 DriveN Sheave: TL4/5V10.30 $ 128.64

DriveN Bushing: 3020 2.1/8 $ 20.82 DriveN Bushing: 3020 2.1/8 $ 20.82

Total Cost: $ 446.29 TotalCost: $ 331.38

KWh Per Year: 348133 KWH/yr.

Energy Savings: $ 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.

NOTES

- 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

INDUSTRIAL BELT DRIVE DESIGN - Energy Report

Using Design Flex II by the Gates Rubber Company

™

●

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.

PowerGrip GT2 drive systems provide the lowest initial cost compared to

any other high-speed rubber belt synchronous system.

And here’s proof!

®™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.

PGGT2EaglePantherRPP PlusPGGTHTD

Published Horsepower Ratings

(8mm Pitch, 56 Groove Sprocket,

1750 rpm Motor Speed, 1” Belt Width)

$0$0

$5$5

$10$10

$15$15

$20$20

60504030252015107.5

Motor Horsepower

Relative Cost

Relative Drive Cost

For Motor Horsepowers

(1750 rpm Motor Speed, 8mm Pitch)

$10

EagleHTDPGGTPantherRPP PlusPGGT2

Relative Cost

Relative Drive Cost

Per Motor Horsepower

(8mm Pitch, 56 Groove Sprocket, 1750 rpm

Motor Speed, Service Factor Added)

$10

PGGTHTDEaglePantherRPP PlusPGGT2

Relative Cost

Relative Drive Cost

Per Inch of Belt Width

(8mm Pitch, 56 Groove Sprocket,

1750 rpm Motor Speed)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

PGGT2PantherRPP PlusEagleHTDPGGT

Horsepower Per mm Belt Width

Horsepower Capacity

Per mm Belt Width

(8mm Pitch, 56 Groove Sprocket, 1750 rpm

Motor Speed, Service Factor Added)

Center Distance Range

Maximum Speed Ratio

Belt Length Selections

Belt Length Range

Belt Width Selections

Total Drive Combinations

Goodyear

Eagle Pd Dayco

RPP Panther

Gates

PowerGrip GT2

3.46 – 83.15 5.51 – 44.09 3.78 – 83.15

6.545:1 11.200:1 8.730:1

33 14 26

384 – 4400mm 640 – 2400mm 480 – 4400mm

20-30-50-85 16-32 12-22-35-60

20000+ 7000+ 16500+

Sprocket Diameters 19 26 20

8mm Pitch Product

Line Comparison

■PowerGrip®GT®2

■PowerGrip®GT®■Goodyear®Eagle Pd®■RPP®Plus®■HTD®■Dayco®Panther®

$20

$40

$60

$80

$100

28%

37%

16%

30mm to 20mm50mm to 30mm85mm to 50mm

Belt Width

Replacement Cost

Replacement Belt Cost Saving %

(HTD & PowerGrip GT to PowerGrip GT2,

8mm Pitch)

$20

$40

$60

$80

$100

38%

10%

39%

18%

10%

55mm

to 40mm

85mm

to 55mm

115mm

to 55mm

115mm

to 85mm

170mm

to 85mm

Belt Width

Replacement Cost

Replacement Belt Cost Saving %

(HTD & PowerGrip GT to PowerGrip GT2,

14mm Pitch)

Center Distance Range

Maximum Speed Ratio

Belt Length Selections

Belt Length Range

Belt Width Selections

Total Drive Combinations

Goodyear

Eagle Pd Dayco

RPP Panther

Gates

PowerGrip GT2

7.99 – 127.32 8.54 – 47.40 7.99 – 89.84

6.857:1 6.00:1 7.71:1

22 14 18

966 – 6860mm 994 – 2800mm 966 – 4956mm

40-55-85-115-170 35-53-70-105 20-42-65-90-120

22000 8,000+ 17,500+

Sprocket Diameters 23 21 23

14mm Pitch Product

Line Comparison

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

Company Product Trade Name Nomenclature Belt-Pitch Profile

Bando Synchro-Link® – HT 1600-8M-20-H 8 & 14mm HTD

Dodge HT100™1600-8M-20 HT100 8 & 14mm GT

Electron EHT®1600-8M-20 8 & 14mm HTD

Gates HTD®1600-8M-20 8 & 14mm HTD

Jason HTB®1600-8M-20 8 & 14mm HTD

MBL HTT™1600-8M-20 8 & 14mm HTD

Opti Belt HTD®1600-8M-20 8 & 14mm HTD

Browning HPT®1600-8M-20 14mm RPP

Dayco RPP®1600-8M-20 14mm RPP

Goodyear HPPD™1600-8M-20 14mm RPP

T.B. Woods RPP®1600-8M-20 14mm RPP

Thermoid Synchro-Curve® Timing 1600-8M-20 14mm RPP

Dayco RPP Plus™1600-8M-20 14mm RPP

Dayco HPR™1600-8M-20 14mm RPP

Dodge HT150™1600-8M-20 8 & 14mm GT

T.B. Woods RPP Plus™1600-8M-20 14mm RPP

T.B. Woods HPR™1600-8M-20 14mm RPP

Competitors Width PowerGrip GT2 – Width Competitors Width PowerGrip GT2 – Width

8mm – Pitch 8mm – Pitch 14mm – Pitch 14mm – Pitch

20 20 40 40

30 20 55 40

50 30 85 55

85 50 115 85

170 115

Design Performance Grouping – PowerGrip GT

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

Company Product Trade Name Nomenclature Belt-Pitch Profile

Bando Synchro-Link® - HT 1600-8M-20-H 8 & 14mm HTD

Dodge HT100™1600-8M-20 HT100 8 & 14mm GT

Electron EHT®1600-8M-20 8 & 14mm HTD

Gates HTD®1600-8M-20 8 & 14mm HTD

Jason HTB®1600-8M-20 8 & 14mm HTD

MBL HTT™1600-8M-20 8 & 14mm HTD

Opti Belt HTD®1600-8M-20 8 & 14mm HTD

Browning HPT®1600-8M-20 14mm RPP

Dayco RPP®1600-8M-20 14mm RPP

Goodyear HPPD™1600-8M-20 14mm RPP

T.B. Woods RPP®1600-8M-20 14mm RPP

Thermoid Synchro-Curve® Timing 1600-8M-20 14mm RPP

Food Processing

Pumps, bucket elevators,

belt conveyors, icing machines,

elongators, dough mixers,

cookers, mills, bottling machines,

meat grinders, hog dehairers

Packaging

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

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

The Driving Force in Power Transmission. Page 1

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 mis-

uses include:

Primary In-Flight Aircraft Systems

Do not use Gates belts, pulleys or sprockets on aircraft, propeller or rotor drive sys-

tems 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 re-

quiring special “Lift” or “Proof” type chains with minimum tensile strength or certi-

fied/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 de-

vice in “emergency stop” systems.

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 accu-

racy 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 tim-

ing belt system.

The PowerGrip GT2 system is an extension of the HTD system with improved load-carrying capacity. HTD was de-

veloped for high torque drive applications, but is not acceptable for most precision indexing or registration applica-

tions. 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 de-

formation under load. The PowerGrip GT2 design improves registration characteristics and maintains high torque

carrying capability.

Page 2 The Gates Rubber Company

PowerGrip®GT2®Belt

Tooth/Groove Contact

PowerGrip®HTD®Belt

Tooth/Groove Contact

PowerGrip®Timing Belt

Tooth/Groove Contact

Introduction — PowerGrip®GT®2 Belt Drives

The choice of the industry

for ultimate durability and precision

The Gates PowerGrip GT2 combines the

very best in technology and construction

design to give improved performance

and extended product life.

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 in-

creases service life. A deep tooth profile provides su-

perior 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

for accurate registration, heavy loads

and small sprockets.

Sounds this quiet……

The PowerGrip GT2 belt’s specially engi-

neered 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.

When precision is critical,

depend on PowerGrip GT2 belts

PowerGrip GT2 belts are specifically designed for ap-

plications 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 re-

quire maximum performance. Gates worldwide manu-

facturing 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:

nmachine tools nfloor care equipment nrobotics equipment

nhand power tools nmedical diagnostic equipment nvending equipment

nDC stepper/servo applications ncentrifuges nconveyors

npumps nfans ncompressors

The Driving Force in Power Transmission. Page 3

Introduction — PowerGrip®Timing Belt Drives

Provide positive,

non-slip power transmission

PowerGrip Timing Belts are a good stan-

dard line product with a history of reliabil-

ity. Around since the late 1940’s, this

product line has been the flagship of syn-

chronous power transmission prior to

Gates introduction of PowerGrip HTD

and GT2 Belts.

Gates timing belts are made with a true

design pitch, a standard of the Rubber

Manufacturers’ Association and the Inter-

national Standards Organization.

PowerGrip Timing Belts are recommended for these types of applications:

noffice equipment ndata processing equipment nspindles

nappliances npower tools nmailing equipment

nmedical equipment nrobotics

See pages 59-84 for PowerGrip Timing Drives.

Page 4 The Gates Rubber Company

Introduction — PowerGrip®Twin Power®Belt Drives

Dual driving surfaces allow for unique,

problem solving drive designs

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 de-

sign problems.

Twin Power Belts are similar in construc-

tion to regular synchronous belts, includ-

ing nylon-faced teeth on both sides.

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:

nserpentine drives nreversing 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 con-

ventional endless form.

Long-length PowerGrip Belting has the

same basic construction as conventional

Gates synchronous belts.

For information or assistance on any

long length belt problem, contact Gates

Application Engineering.

NOTE: Long-length PowerGrip Belting

is available in GT, HTD, Timing Belt and

Synchro-Power Polyurethane configura-

tions.

Typical PowerGrip Long Length Belting uses are:

nreciprocating carriage drives nrack and pinion drives nlarge plotters

See pages 85-94 for PowerGrip Long Length Belting.

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 pre-

cision construction.

Page 6 The Gates Rubber Company

Test Conditions

Belt Length 1400mm

Width 40mm

Sprockets DriveR 36 Grooves

DriveN 36 Grooves

Load 36 HP

Speed 1750 rpm

All tests in HTD Sprockets

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.

PowerGrip®GT®2 Belt Drives

Belt Construction

PowerGrip GT2 drives provide positive, trou-

ble-free power transmission in low speed —

high torque applications and offer many advan-

tages over conventional chain, gear and other

belt drives.

Advantages:

nHigher capacity

nImproved registration

nReduced noise

nNo lubrication required

nNo stretching due to wear

nCorrosion resistance

nExcellent abrasion resistance

nClean operation

nLong trouble-free service

Construction Features

The tooth design substantially improves stress distribution and allows ex-

tra 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:

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 pro-

tects 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 sur-

faces and provides a durable wearing surface for long service.

The Driving Force in Power Transmission. Page 7

3. Neoprene Teeth

4. Nylon Facing

1. Tensile Member

2. Neoprene Backing

PowerGrip®Belt Drive Selection Procedure

Selection of a stock PowerGrip Belt Drive System in-

volves 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 op-

erate 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 de-

termined 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

a. Determine speed ratio.

The speed ratio can be determined by dividing the

rpm of the faster shaft by the slower shaft rpm.

Example

rpm of faster shaft

rpm of slower shaft =1160

580 =2.0

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 maxi-

mum required sprocket diameter and the recom-

mended 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 vari-

ous 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 combina-

tions 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 diam-

eter of the 28-groove sprocket is less than the recom-

mended 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.

continued

Page 8 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

3.82 = 2191.9 fpm

14mm Drive:

V=6.316 1160

3.82 = 1917.9 fpm

Step 4 Select Belt Width

Procedure

Belt Width Selection Tables (pages 44 through 51, 56

through 58 and pages 75 through 84) show the horse-

power 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 col-

umn.

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 Fac-

tor (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.

68.5 hp 1.2 = 82.2 hp×

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 de-

sign 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 bush-

ing has a bore range of 12to 21116 inches which in-

cludes the 218-inch bore required for the driveR shaft.

The 3020 bushing has a bore range form 78to 314

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 218-inch bore

1—P144-8MGT-50 driveN sprocket

1—3020 Bushing with a 3-inch bore

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 qYes qNo

DriveN RPM _____________ RPM Measured with Contact or Strobe Tachometer qYes qNo

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? qYes qNo

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? qYes qNo Motor Mounted on Sheet Metal? qYes qNo

Adequate Structure? qYes qNo Floating/Pivot Motor Base? qYes qNo

Start Up Load:

%Motor Rating at Start Up________ AC Inverter? qYes qNo Soft Start? qYes qNo

Duty Cycle:

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

Energy Savings Information

Energy Cost per KW-Hour __________________________________________________________________

Hours of Operation: _______Hours per Day _______Days per Week ________Weeks per Year _________

Page 10 The Gates Rubber Company

PowerGrip®Belt Drives

The Driving Force in Power Transmission. Page 11

7000

5000

3450

1750

1160

870

600

400

200

100

RPM

Faster

Shaft

8mm

PowerGrip GT2

5mm

PowerGrip GT2

14mm

PowerGrip GT2

20mm

PowerGrip GT2

PowerGrip®GT®2 Belt Pitch Selection Guide

Design Horsepower

20,000

10,000

5,000

4,000

3,450

1,750

1,160

690

575

400

300

200

150

100

0.01 0.050.15 .02 .03 .04 .07 0.1 .15 .2 .3 0.5 1.0 1.5 2.0 3.0 4.0 5.0 7.0 10 20 200 300 400 50030 40 50 70 100 1,00015015.7

870

2,500

RPM OF Faster Shaft

NONSTOCK

0.200 Pitch

0.375 Pitch

0.500 Pitch

PowerGrip®Timing Belt Pitch Selection Guide

Design Horsepower

PowerGrip®Belt Drives

Mimimum Recommended Sprocket Outside Diameters

for General Purpose Electric Motors — Synchronous Belts

Page 12 The Gates Rubber Company

Motor

Horsepower

Motor RPM (60 Cycle and 50 Cycle Electric Motors

575

485* 690

575* 870

725* 1160

950* 1750

1425* 3450

2850*

2——2.0———

4— — 2.2 2.0 — —

1 2.7 2.3 2.2 2.2 2.0 —

22.7 2.7 2.2 2.2 2.2 2.0

2 3.4 2.7 2.7 2.2 2.2 2.2

3 4.1 3.4 2.7 2.7 2.2 2.2

5 4.1 4.1 3.4 2.7 2.7 2.2

7 4.7 4.1 4.0 3.4 2.7 2.7

10 5.4 4.7 4.0 4.0 3.4 2.7

15 6.1 5.4 4.7 4.0 4.0 3.4

20 7.4 6.1 5.4 4.7 4.0 4.0

25 8.1 7.4 6.1 5.4 4.0 4.0

30 9.0 8.1 6.1 6.1 4.7 —

40 9.0 9.0 7.4 6.1 5.4 —

50 9.9 9.0 7.6 7.4 6.1 —

60 10.8 9.9 9.0 7.2 6.7 —

75 12.5 11.7 8.5 9.0 7.7 —

100 16.2 13.5 10.8 9.0 7.7 —

125 18.0 16.2 13.5 10.8 9.5 —

150 19.8 18.0 16.2 11.7 9.5 —

200 19.8 19.8 19.8 — 11.9 —

250 19.8 19.8 ————

300 24.3 24.3 ————

* 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.

PowerGrip®GT®2 Belt Drives

Gates 5mm, 8mm, 14mm and 20mm pitch GT2 belts

have helically-wound fiberglass tension members em-

bedded in a Neoprene body with the belt teeth faced

with a tough wear-resistant nylon fabric.

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 the-

oretical 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.

5mm PowerGrip GT2

Example: 5mm pitch, 1600mm pitch length, 25mm belt width

Belt Designation: 5MR-1600-25

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

The part number designations for PowerGrip GT2

sprockets depend on the pitch of belt. Sprocket desig-

nations are shown below for each of the available

pitches.

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.

The Driving Force in Power Transmission. Page 13

Pitch (circular pitch)

Outside

Diameter

Belt

Pitch

Line

Sprocket

Pitch

Circle

Pitch

Diameter

5mm

.197 In.

3.81mm

.150 In.

1.93mm

.76 In.

5mm Pitch −Reference Dimensions

8mm Pitch −Reference Dimensions

8mm

.315 in.

3.28mm

.129 in.

5.59mm

.220 in.

14mm Pitch - Reference Dimensions

14mm

9.91mm 5.84mm

.552 in.

.390 in. .230 in.

20mm

.787 in.

8.4mm

.330 in.

13.2mm

.520 in.

20mm Pitch − Reference Dimensions

PowerGrip®GT®2 Belt Drives

The following tables list the stock Industrial Belts and their essential specification.

5mm Pitch PowerGrip GT2 Stock Belt Lengths

Designation

Pitch Length No. of

Teeth

(mm) (in)

5MR-300 300 11.81 60

5MR-355 355 13.98 71

5MR-375 375 14.76 75

5MR-400 400 15.75 80

5MR-425 425 16.73 85

5MR-450 450 17.72 90

5MR-405 405 15.99 81

5MR-500 500 19.69 100

5MR-535 535 21.06 107

5MR-565 565 22.24 113

5MR-580 580 22.83 116

5MR-600 600 23.62 120

5MR-625 625 24.61 125

5MR-650 650 25.59 130

5MR-700 700 27.56 140

5MR-750 750 29.53 150

5MR-800 800 31.50 160

5MR-850 850 33.46 170

5MR-900 900 35.43 180

5MR-1000 1000 39.37 200

5MR-1150 1150 45.28 230

5MR-1300 1300 51.18 260

5MR-1450 1450 57.09 290

5MR-1600 1600 62.99 320

5MR-1720 1720 67.72 344

5MR-2100 2100 82.67 420

5MR Stock Belt Widths

Belt Width

Code

Belt Width

(mm)

Belt Width

(in)

09 9 0.354

15 15 0.591

25 25 0.984

8mm Pitch PowerGrip GT2 Stock Belt Lengths

Designation

Pitch

Length No. of

Teeth(mm) (in)

384-8MGT 384 15.12 48

480-8MGT 480 18.89 60

560-8MGT 560 22.05 70

600-8MGT 600 23.62 75

640-8MGT 640 25.20 80

720-8MGT 720 28.35 90

800-8MGT 800 31.50 100

840-8MGT 840 33.07 105

880-8MGT 880 34.65 110

920-8MGT 920 36.22 115

960-8MGT 960 37.80 120

1040-8MGT 1040 40.94 130

1064-8MGT 1064 41.89 133

1120-8MGT 1120 44.09 140

1160-8MGT 1164 45.67 145

1200-8MGT 1200 47.24 150

1224-8MGT 1224 48.19 153

1280-8MGT 1280 50.39 160

1440-8MGT 1440 56.69 180

1512-8MGT 1512 59.53 189

1584-8MGT 1584 62.36 198

1600-8MGT 1600 62.99 200

1760-8MGT 1760 69.29 220

1800-8MGT 1800 70.87 225

2000-8MGT 2000 78.74 250

2200-8MGT 2200 86.61 275

2400-8MGT 2400 94.49 300

2600-8MGT 2600 102.36 325

2800-8MGT 2800 110.24 350

3048-8MGT 3048 120.00 381

3280-8MGT 3280 129.13 410

3600-8MGT 3600 141.73 450

4400-8MGT 4400 173.23 550

8MGT Stock Belt Widths

Belt Width

Code

Belt Width

(mm)

Belt Width

(in)

20 20 0.787

30 30 1.181

50 50 1.969

85 85 3.346

14mm Pitch PowerGrip GT2 Stock Belt Lengths

Designation

Pitch

Length No. of

Teeth(mm) (in)

966-14MGT 966 38.03 69

1190-14MGT 1190 46.85 85

1400-14MGT 1400 55.12 100

1610-14MGT 1610 63.39 115

1778-14MGT 1778 70.00 127

1890-14MGT 1890 74.41 135

2100-14MGT 2100 82.68 150

2310-14MGT 2310 90.94 165

2450-14MGT 2450 96.46 175

2590-14MGT 2590 101.97 185

2800-14MGT 2800 110.24 200

3150-14MGT 3150 124.02 225

3360-14MGT 3360 132.28 240

3500-14MGT 3500 137.80 250

3850-14MGT 3850 151.57 275

4326-14MGT 4326 170.32 309

4578-14MGT 4578 180.24 327

4956-14MGT 4956 195.12 354

5320-14MGT 5320 209.45 380

5740-14MGT 5740 225.98 410

6160-14MGT 6160 242.52 440

6860-14MGT 6860 270.08 490

14MGT Stock Belt Widths

Belt Width

Code

Belt Width

(mm)

Belt Width

(in)

40 40 1.575

55 55 2.165

85 85 3.346

115 115 4.528

170 170 6.693

20mm Pitch PowerGrip GT2 Stock Belt Lengths

Designation

Pitch

Length No. of

Teeth(mm) (in)

2000-20M 2000 78.74 100

2500-20M 2500 98.43 125

3400-20M 3400 133.86 170

3800-20M 3800 149.61 190

4200-20M 4200 165.35 210

4600-20M 4600 181.10 230

5000-20M 5000 196.85 250

5200-20M 5200 204.72 260

5400-20M 5400 212.60 270

5600-20M 5600 220.47 280

5800-20M 5800 228.35 290

6000-20M 6000 236.22 300

6200-20M 6200 244.09 310

6400-20M 6400 251.97 320

6600-20M 6600 259.84 330

20M Stock Belt Widths

Belt Width

Code

Belt Width

(mm)

Belt Width

(in)

115 115 4.528

170 170 6.693

230 230 9.055

290 290 11.417

340 340 13.386

Page 14 The Gates Rubber Company

Basic PowerGrip®Service Factors

The Driving Force in Power Transmission. Page 15

DriveN Machine DriveR

The driveN machines listed below are

representative samples only. Select a

driveN machine whose load characteris-

tics most closely approximate those of

the machine being considered.

AC Motors: Normal Torque, Squirrel Cage, Synchronous,

Split Phase, Inverter Controlled

DC Motors: Shunt Wound Stepper Motors

Engines: Multiple Cylinder Internal Combustion

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)

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 Ma-

chines

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 judg-

ment. Service factors may be adjusted based upon an understanding of the severity of actual drive operating conditions.

Additional Service Factors

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 condi-

tions—such as load reversal, heavy shock, plugged motor

stop, electric brake. These should be determined by a

transmission specialist.

Speedup Drives

For speedup drives, add to the basic service factor the

additional factor given below.

Speedup

Ratio Range

Additional

Factor

Speedup

Ratio Range

Additional

Factor

1 to 1.24 none 2.50 to 3.49 .30

1.25 to 1.74 .10 3.50 & over .40

1.75 to 2.49 .20

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

5MR-300

P.L 11.811

60 teeth

5MR-355

P.L 13.976

71 teeth

5MR-375

P.L 14.764

75 teeth

5MR-400

P.L 15.748

80 teeth

5MR-405

P.L 15.945

81 teeth

5MR-425

P.L 16.732

85 teeth

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

18 1.128 18 1.128 1.000 4.13 5.22 5.61 6.10 6.20 6.59 7.09 8.07 8.76 9.35 9.64 10.04

19 1.191 19 1.191 1.000 4.03 5.12 5.51 6.00 6.10 6.49 6.99 7.97 8.66 9.25 9.54 9.94

20 1.253 20 1.253 1.000 3.94 5.02 5.41 5.91 6.00 6.40 6.89 7.87 8.56 9.15 9.45 9.84

21 1.316 21 1.316 1.000 3.84 4.92 5.31 5.81 5.90 6.30 6.79 7.77 8.46 9.05 9.35 9.74

22 1.379 22 1.379 1.000 3.74 4.82 5.21 5.71 5.80 6.20 6.69 7.67 8.36 8.95 9.25 9.64

23 1.441 23 1.441 1.000 3.64 4.73 5.12 5.61 5.71 6.10 6.60 7.58 8.27 8.86 9.15 9.55

24 1.504 24 1.504 1.000 3.54 4.63 5.02 5.51 5.61 6.00 6.50 7.48 8.17 8.76 9.05 9.45

25 1.566 25 1.566 1.000 3.45 4.53 4.92 5.42 5.51 5.91 6.40 7.38 8.07 8.66 8.96 9.35

26 1.629 26 1.629 1.000 3.35 4.43 4.82 5.32 5.41 5.81 6.30 7.28 7.97 8.56 8.86 9.25

28 1.754 28 1.754 1.000 3.15 4.23 4.62 5.12 5.21 5.61 6.10 7.08 7.77 8.36 8.66 9.05

30 1.880 30 1.880 1.000 2.95 4.04 4.43 4.92 5.02 5.41 5.91 6.89 7.58 8.17 8.46 8.86

32 2.005 32 2.005 1.000 2.76 3.84 4.23 4.73 4.82 5.22 5.71 6.69 7.38 7.97 8.27 8.66

34 2.130 34 2.130 1.000 2.56 3.64 4.03 4.53 4.62 5.02 5.51 6.49 7.18 7.77 8.07 8.46

36 2.256 36 2.256 1.000 3.45 3.84 4.33 4.43 4.82 5.32 6.30 6.99 7.58 7.87 8.27

38 2.381 38 2.381 1.000 3.25 3.64 4.13 4.23 4.62 5.12 6.10 6.79 7.38 7.67 8.07

40 2.506 40 2.506 1.000 3.05 3.44 3.94 4.03 4.43 4.92 5.90 6.59 7.18 7.48 7.87

44 2.757 44 2.757 1.000 3.54 3.64 4.03 4.53 5.51 6.20 6.79 7.08 7.48

45 2.820 45 2.820 1.000 3.45 3.54 3.94 4.43 5.41 6.10 6.69 6.99 7.38

48 3.008 48 3.008 1.000 3.64 4.14 5.12 5.81 6.40 6.69 7.09

50 3.133 50 3.133 1.000 3.94 4.92 5.61 6.20 6.49 6.89

52 3.258 52 3.258 1.000 3.74 4.72 5.41 6.00 6.30 6.69

56 3.509 56 3.509 1.000 4.33 5.02 5.61 5.90 6.30

60 3.760 60 3.760 1.000 4.62 5.21 5.51 5.90

64 4.010 64 4.010 1.000 4.82 5.12 5.51

68 4.261 68 4.261 1.000 4.72 5.12

44 2.757 45 2.820 1.023 3.49 3.59 3.98 4.48 5.46 6.15 6.74 7.03 7.43

25 1.566 26 1.629 1.040 3.40 4.48 4.87 5.37 5.46 5.86 6.35 7.33 8.02 8.61 8.91 9.30

50 3.133 52 3.258 1.040 3.84 4.82 5.51 6.10 6.40 6.79

24 1.504 25 1.566 1.042 3.49 4.58 4.97 5.46 5.56 5.95 6.45 7.43 8.12 8.71 9.00 9.40

48 3.008 50 3.133 1.042 3.54 4.04 5.02 5.71 6.30 6.59 6.99

23 1.441 24 1.504 1.043 3.59 4.68 5.07 5.56 5.66 6.05 6.55 7.53 8.22 8.81 9.10 9.50

22 1.379 23 1.441 1.045 3.69 4.78 5.17 5.66 5.76 6.15 6.65 7.63 8.32 8.91 9.20 9.60

21 1.316 22 1.379 1.048 3.79 4.87 5.26 5.76 5.85 6.25 6.74 7.72 8.41 9.00 9.30 9.69

20 1.253 21 1.316 1.050 3.89 4.97 5.36 5.86 5.95 6.35 6.84 7.82 8.51 9.10 9.40 9.79

19 1.191 20 1.253 1.053 3.99 5.07 5.46 5.96 6.05 6.45 6.94 7.92 8.61 9.20 9.50 9.89

38 2.381 40 2.506 1.053 3.15 3.54 4.04 4.13 4.53 5.02 6.00 6.69 7.28 7.58 7.97

18 1.128 19 1.191 1.056 4.08 5.17 5.56 6.05 6.15 6.54 7.04 8.02 8.71 9.30 9.59 9.99

36 2.256 38 2.381 1.056 3.35 3.74 4.23 4.33 4.72 5.22 6.20 6.89 7.48 7.77 8.17

34 2.130 36 2.256 1.059 3.54 3.93 4.43 4.52 4.92 5.41 6.39 7.08 7.67 7.97 8.37

68 4.261 72 4.511 1.059 4.92

32 2.005 34 2.130 1.063 2.66 3.74 4.13 4.63 4.72 5.12 5.61 6.59 7.28 7.87 8.17 8.56

64 4.010 68 4.261 1.063 4.62 4.92 5.31

30 1.880 32 2.005 1.067 2.85 3.94 4.33 4.82 4.92 5.31 5.81 6.79 7.48 8.07 8.36 8.76

45 2.820 48 3.008 1.067 3.30 3.39 3.79 4.28 5.26 5.95 6.54 6.84 7.23

60 3.760 64 4.010 1.067 4.43 5.02 5.31 5.71

28 1.754 30 1.880 1.071 3.05 4.14 4.53 5.02 5.12 5.51 6.01 6.99 7.68 8.27 8.56 8.96

56 3.509 60 3.760 1.071 4.13 4.82 5.41 5.70 6.10

26 1.629 28 1.754 1.077 3.25 4.33 4.72 5.22 5.31 5.71 6.20 7.18 7.87 8.46 8.76 9.15

52 3.258 56 3.509 1.077 4.52 5.21 5.80 6.10 6.49

24 1.504 26 1.629 1.083 3.44 4.53 4.92 5.41 5.51 5.90 6.40 7.38 8.07 8.66 8.95 9.35

48 3.008 52 3.258 1.083 3.94 4.92 5.61 6.20 6.49 6.89

23 1.441 25 1.566 1.087 3.54 4.63 5.02 5.51 5.61 6.00 6.50 7.48 8.17 8.76 9.05 9.45

22 1.379 24 1.504 1.091 3.64 4.73 5.12 5.61 5.71 6.10 6.60 7.58 8.27 8.86 9.15 9.55

44 2.757 48 3.008 1.091 3.34 3.44 3.84 4.33 5.31 6.00 6.59 6.89 7.28

21 1.316 23 1.441 1.095 3.74 4.82 5.21 5.71 5.80 6.20 6.69 7.67 8.36 8.95 9.25 9.64

20 1.253 22 1.379 1.100 3.84 4.92 5.31 5.81 5.90 6.30 6.79 7.77 8.46 9.05 9.35 9.74

40 2.506 44 2.757 1.100 3.24 3.74 3.83 4.23 4.72 5.71 6.40 6.99 7.28 7.68

19 1.191 21 1.316 1.105 3.94 5.02 5.41 5.91 6.00 6.40 6.89 7.87 8.56 9.15 9.45 9.84

18 1.128 20 1.253 1.111 4.03 5.12 5.51 6.00 6.10 6.49 6.99 7.97 8.66 9.25 9.54 9.94

36 2.256 40 2.506 1.111 3.25 3.64 4.13 4.23 4.62 5.12 6.10 6.79 7.38 7.67 8.07

45 2.820 50 3.133 1.111 3.29 3.69 4.18 5.16 5.85 6.44 6.74 7.13

34 2.130 38 2.381 1.118 3.44 3.84 4.33 4.43 4.82 5.32 6.30 6.99 7.58 7.87 8.27

25 1.566 28 1.754 1.120 3.30 4.38 4.77 5.27 5.36 5.76 6.25 7.23 7.92 8.51 8.81 9.20

50 3.133 56 3.509 1.120 3.64 4.62 5.31 5.90 6.20 6.59

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 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 16 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

grooves No. of

grooves

10.53 11.02 12.01 12.99 13.98 14.96 15.94 17.91 20.87 23.82 26.77 29.72 32.09 39.57 1.000 18 18

10.43 10.92 11.91 12.89 13.88 14.86 15.84 17.81 20.77 23.72 26.67 29.62 31.99 39.47 1.000 19 19

10.34 10.83 11.81 12.80 13.78 14.76 15.75 17.72 20.67 23.62 26.58 29.53 31.89 39.37 1.000 20 20

10.24 10.73 11.71 12.70 13.68 14.66 15.65 17.62 20.57 23.52 26.48 29.43 31.79 39.27 1.000 21 21

10.14 10.63 11.61 12.60 13.58 14.56 15.55 17.52 20.47 23.42 26.38 29.33 31.69 39.17 1.000 22 22

10.04 10.53 11.52 12.50 13.49 14.47 15.45 17.42 20.38 23.33 26.28 29.23 31.60 39.08 1.000 23 23

9.94 10.43 11.42 12.40 13.39 14.37 15.35 17.32 20.28 23.23 26.18 29.13 31.50 38.98 1.000 24 24

9.85 10.34 11.32 12.31 13.29 14.27 15.26 17.23 20.18 23.13 26.09 29.04 31.40 38.88 1.000 25 25

9.75 10.24 11.22 12.21 13.19 14.17 15.16 17.13 20.08 23.03 25.99 28.94 31.30 38.78 1.000 26 26

9.55 10.04 11.02 12.01 12.99 13.97 14.96 16.93 19.88 22.83 25.79 28.74 31.10 38.58 1.000 28 28

9.35 9.84 10.83 11.81 12.80 13.78 14.76 16.73 19.69 22.64 25.59 28.54 30.91 38.39 1.000 30 30

9.16 9.65 10.63 11.62 12.60 13.58 14.57 16.54 19.49 22.44 25.40 28.35 30.71 38.19 1.000 32 32

8.96 9.45 10.43 11.42 12.40 13.38 14.37 16.34 19.29 22.24 25.20 28.15 30.51 37.99 1.000 34 34

8.76 9.25 10.24 11.22 12.21 13.19 14.17 16.14 19.10 22.05 25.00 27.95 30.32 37.80 1.000 36 36

8.56 9.05 10.04 11.02 12.01 12.99 13.97 15.94 18.90 21.85 24.80 27.75 30.12 37.60 1.000 38 38

8.37 8.86 9.84 10.83 11.81 12.79 13.78 15.75 18.70 21.65 24.61 27.56 29.92 37.40 1.000 40 40

7.97 8.46 9.45 10.43 11.42 12.40 13.38 15.35 18.31 21.26 24.21 27.16 29.53 37.01 1.000 44 44

7.88 8.37 9.35 10.34 11.32 12.30 13.29 15.26 18.21 21.16 24.12 27.07 29.43 36.91 1.000 45 45

7.58 8.07 9.06 10.04 11.03 12.01 12.99 14.96 17.92 20.87 23.82 26.77 29.14 36.62 1.000 48 48

7.38 7.87 8.86 9.84 10.83 11.81 12.79 14.76 17.72 20.67 23.62 26.57 28.94 36.42 1.000 50 50

7.19 7.68 8.66 9.65 10.63 11.61 12.60 14.57 17.52 20.47 23.43 26.38 28.74 36.22 1.000 52 52

6.79 7.28 8.27 9.25 10.24 11.22 12.20 14.17 17.13 20.08 23.03 25.98 28.35 35.83 1.000 56 56

6.40 6.89 7.87 8.86 9.84 10.82 11.81 13.78 16.73 19.68 22.64 25.59 27.95 35.43 1.000 60 60

6.01 6.50 7.48 8.47 9.45 10.43 11.42 13.39 16.34 19.29 22.25 25.20 27.56 35.04 1.000 64 64

5.61 6.10 7.09 8.07 9.06 10.04 11.02 12.99 15.95 18.90 21.85 24.80 27.17 34.65 1.000 68 68

7.92 8.41 9.40 10.38 11.37 12.35 13.33 15.30 18.26 21.21 24.16 27.11 29.48 36.96 1.023 44 45

9.80 10.29 11.27 12.26 13.24 14.22 15.21 17.18 20.13 23.08 26.04 28.99 31.35 38.83 1.040 25 26

7.29 7.78 8.76 9.75 10.73 11.71 12.70 14.67 17.62 20.57 23.53 26.48 28.84 36.32 1.040 50 52

9.89 10.38 11.37 12.35 13.34 14.32 15.30 17.27 20.23 23.18 26.13 29.08 31.45 38.93 1.042 24 25

7.48 7.97 8.96 9.94 10.93 11.91 12.89 14.86 17.82 20.77 23.72 26.67 29.04 36.52 1.042 48 50

9.99 10.48 11.47 12.45 13.44 14.42 15.40 17.37 20.33 23.28 26.23 29.18 31.55 39.03 1.043 23 24

10.09 10.58 11.57 12.55 13.54 14.52 15.50 17.47 20.43 23.38 26.33 29.28 31.65 39.13 1.045 22 23

10.19 10.68 11.66 12.65 13.63 14.61 15.60 17.57 20.52 23.47 26.43 29.38 31.74 39.22 1.048 21 22

10.29 10.78 11.76 12.75 13.73 14.71 15.70 17.67 20.62 23.57 26.53 29.48 31.84 39.32 1.050 20 21

10.39 10.88 11.86 12.85 13.83 14.81 15.80 17.77 20.72 23.67 26.63 29.58 31.94 39.42 1.053 19 20

8.47 8.96 9.94 10.93 11.91 12.89 13.88 15.85 18.80 21.75 24.71 27.66 30.02 37.50 1.053 38 40

10.48 10.97 11.96 12.94 13.93 14.91 15.89 17.86 20.82 23.77 26.72 29.67 32.04 39.52 1.056 18 19

8.66 9.15 10.14 11.12 12.11 13.09 14.07 16.04 19.00 21.95 24.90 27.85 30.22 37.70 1.056 36 38

8.86 9.35 10.34 11.32 12.31 13.29 14.27 16.24 19.20 22.15 25.10 28.05 30.42 37.90 1.059 34 36

5.41 5.90 6.89 7.87 8.86 9.84 10.82 12.79 15.75 18.70 21.66 24.61 26.97 34.45 1.059 68 72

9.06 9.55 10.53 11.52 12.50 13.48 14.47 16.44 19.39 22.34 25.30 28.25 30.61 38.09 1.063 32 34

5.81 6.30 7.28 8.27 9.25 10.23 11.22 13.19 16.14 19.09 22.05 25.00 27.36 34.84 1.063 64 68

9.25 9.74 10.73 11.71 12.70 13.68 14.66 16.63 19.59 22.54 25.49 28.44 30.81 38.29 1.067 30 32

7.73 8.22 9.20 10.19 11.17 12.15 13.14 15.11 18.06 21.01 23.97 26.92 29.28 36.76 1.067 45 48

6.20 6.69 7.68 8.66 9.65 10.63 11.61 13.58 16.54 19.49 22.44 25.39 27.76 35.24 1.067 60 64

9.45 9.94 10.93 11.91 12.90 13.88 14.86 16.83 19.79 22.74 25.69 28.64 31.01 38.49 1.071 28 30

6.59 7.08 8.07 9.06 10.04 11.02 12.01 13.98 16.93 19.88 22.84 25.79 28.15 35.63 1.071 56 60

9.65 10.14 11.12 12.11 13.09 14.07 15.06 17.03 19.98 22.93 25.89 28.84 31.20 38.68 1.077 26 28

6.99 7.48 8.46 9.45 10.43 11.41 12.40 14.37 17.32 20.27 23.23 26.18 28.54 36.02 1.077 52 56

9.84 10.33 11.32 12.30 13.29 14.27 15.25 17.22 20.18 23.13 26.08 29.03 31.40 38.88 1.083 24 26

7.38 7.87 8.86 9.84 10.83 11.81 12.79 14.76 17.72 20.67 23.62 26.57 28.94 36.42 1.083 48 52

9.94 10.43 11.42 12.40 13.39 14.37 15.35 17.32 20.28 23.23 26.18 29.13 31.50 38.98 1.087 23 25

10.04 10.53 11.52 12.50 13.49 14.47 15.45 17.42 20.38 23.33 26.28 29.23 31.60 39.08 1.091 22 24

7.78 8.27 9.25 10.24 11.22 12.20 13.19 15.16 18.11 21.06 24.02 26.97 29.33 36.81 1.091 44 48

10.14 10.63 11.61 12.60 13.58 14.56 15.55 17.52 20.47 23.42 26.38 29.33 31.69 39.17 1.095 21 23

10.24 10.73 11.71 12.70 13.68 14.66 15.65 17.62 20.57 23.52 26.48 29.43 31.79 39.27 1.100 20 22

8.17 8.66 9.65 10.63 11.62 12.60 13.58 15.55 18.51 21.46 24.41 27.36 29.73 37.21 1.100 40 44

10.34 10.83 11.81 12.80 13.78 14.76 15.75 17.72 20.67 23.62 26.58 29.53 31.89 39.37 1.105 19 21

10.43 10.92 11.91 12.89 13.88 14.86 15.84 17.81 20.77 23.72 26.67 29.62 31.99 39.47 1.111 18 20

8.56 9.05 10.04 11.02 12.01 12.99 13.97 15.94 18.90 21.85 24.80 27.75 30.12 37.60 1.111 36 40

7.63 8.12 9.10 10.09 11.07 12.05 13.04 15.01 17.96 20.91 23.87 26.82 29.18 36.66 1.111 45 50

8.76 9.25 10.24 11.22 12.21 13.19 14.17 16.14 19.10 22.05 25.00 27.95 30.32 37.80 1.118 34 38

9.70 10.19 11.17 12.16 13.14 14.12 15.11 17.08 20.03 22.98 25.94 28.89 31.25 38.73 1.120 25 28

7.09 7.58 8.56 9.55 10.53 11.51 12.50 14.47 17.42 20.37 23.33 26.28 28.64 36.12 1.120 50 56

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

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

*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.

The Driving Force in Power Transmission. Page 17

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

5MR-300

P.L 11.811

60 teeth

5MR-355

P.L 13.976

71 teeth

5MR-375

P.L 14.764

75 teeth

5MR-400

P.L 15.748

80 teeth

5MR-405

P.L 15.945

81 teeth

5MR-425

P.L 16.732

85 teeth

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

32 2.005 36 2.256 1.125 2.56 3.64 4.03 4.53 4.62 5.02 5.51 6.49 7.18 7.77 8.07 8.46

40 2.506 45 2.820 1.125 3.19 3.69 3.78 4.18 4.67 5.65 6.35 6.94 7.23 7.63

64 4.010 72 4.511 1.125 4.42 4.72 5.11

23 1.441 26 1.629 1.130 3.49 4.58 4.97 5.46 5.56 5.95 6.45 7.43 8.12 8.71 9.00 9.40

30 1.880 34 2.130 1.133 2.75 3.84 4.23 4.72 4.82 5.21 5.71 6.69 7.38 7.97 8.26 8.66

60 3.760 68 4.261 1.133 4.81 5.11 5.50

22 1.379 25 1.566 1.136 3.59 4.68 5.07 5.56 5.66 6.05 6.55 7.53 8.22 8.81 9.10 9.50

44 2.757 50 3.133 1.136 3.34 3.73 4.23 5.21 5.90 6.49 6.79 7.18

21 1.316 24 1.504 1.143 3.69 4.77 5.16 5.66 5.75 6.15 6.64 7.62 8.31 8.90 9.20 9.59

28 1.754 32 2.005 1.143 2.95 4.04 4.43 4.92 5.02 5.41 5.91 6.89 7.58 8.17 8.46 8.86

56 3.509 64 4.010 1.143 4.62 5.21 5.50 5.90

20 1.253 23 1.441 1.150 3.79 4.87 5.26 5.76 5.85 6.25 6.74 7.72 8.41 9.00 9.30 9.69

26 1.629 30 1.880 1.154 3.15 4.23 4.62 5.12 5.21 5.61 6.10 7.08 7.77 8.36 8.66 9.05

52 3.258 60 3.760 1.154 4.32 5.01 5.60 5.90 6.29

45 2.820 52 3.258 1.156 3.58 4.08 5.06 5.75 6.34 6.64 7.03

19 1.191 22 1.379 1.158 3.89 4.97 5.36 5.86 5.95 6.35 6.84 7.82 8.51 9.10 9.40 9.79

38 2.381 44 2.757 1.158 2.95 3.34 3.84 3.93 4.33 4.82 5.80 6.49 7.08 7.38 7.77

18 1.128 21 1.316 1.167 3.98 5.07 5.46 5.95 6.05 6.44 6.94 7.92 8.61 9.20 9.50 9.89

24 1.504 28 1.754 1.167 3.34 4.43 4.82 5.31 5.41 5.80 6.30 7.28 7.97 8.56 8.86 9.25

48 3.008 56 3.509 1.167 3.73 4.71 5.41 6.00 6.29 6.69

34 2.130 40 2.506 1.176 3.34 3.73 4.23 4.32 4.72 5.22 6.20 6.89 7.48 7.77 8.17

68 4.261 80 5.013 1.176

22 1.379 26 1.629 1.182 3.54 4.63 5.02 5.51 5.61 6.00 6.50 7.48 8.17 8.76 9.05 9.45

44 2.757 52 3.258 1.182 3.63 4.13 5.11 5.80 6.39 6.69 7.08

38 2.381 45 2.820 1.184 3.29 3.78 3.88 4.27 4.77 5.75 6.44 7.03 7.33 7.72

32 2.005 38 2.381 1.188 3.54 3.93 4.43 4.52 4.92 5.41 6.39 7.08 7.67 7.97 8.36

21 1.316 25 1.566 1.190 3.64 4.72 5.11 5.61 5.71 6.10 6.60 7.58 8.27 8.86 9.15 9.55

20 1.253 24 1.504 1.200 3.74 4.82 5.21 5.71 5.80 6.20 6.69 7.67 8.36 8.95 9.25 9.64

25 1.566 30 1.880 1.200 3.19 4.28 4.67 5.17 5.26 5.66 6.15 7.13 7.82 8.41 8.71 9.10

30 1.880 36 2.256 1.200 2.65 3.74 4.13 4.62 4.72 5.11 5.61 6.59 7.28 7.87 8.16 8.56

40 2.506 48 3.008 1.200 3.54 3.63 4.03 4.52 5.50 6.19 6.78 7.08 7.48

50 3.133 60 3.760 1.200 4.42 5.11 5.70 5.99 6.39

60 3.760 72 4.511 1.200 4.61 4.90 5.30

19 1.191 23 1.441 1.211 3.84 4.92 5.31 5.81 5.90 6.30 6.79 7.77 8.46 9.05 9.35 9.74

28 1.754 34 2.130 1.214 2.85 3.94 4.33 4.82 4.92 5.31 5.81 6.79 7.48 8.07 8.36 8.76

56 3.509 68 4.261 1.214 4.41 5.00 5.30 5.70

23 1.441 28 1.754 1.217 3.39 4.48 4.87 5.36 5.46 5.85 6.35 7.33 8.02 8.61 8.90 9.30

18 1.128 22 1.379 1.222 3.93 5.02 5.41 5.90 6.00 6.39 6.89 7.87 8.56 9.15 9.45 9.84

36 2.256 44 2.757 1.222 3.04 3.43 3.93 4.03 4.42 4.92 5.90 6.59 7.18 7.47 7.87

26 1.629 32 2.005 1.231 3.05 4.13 4.52 5.02 5.11 5.51 6.00 6.98 7.67 8.26 8.56 8.95

52 3.258 64 4.010 1.231 4.11 4.81 5.40 5.69 6.09

21 1.316 26 1.629 1.238 3.59 4.67 5.06 5.56 5.65 6.05 6.55 7.53 8.22 8.81 9.10 9.50

45 2.820 56 3.509 1.244 3.87 4.86 5.55 6.14 6.43 6.83

20 1.253 25 1.566 1.250 3.69 4.77 5.16 5.66 5.75 6.15 6.64 7.62 8.31 8.90 9.20 9.59

24 1.504 30 1.880 1.250 3.24 4.33 4.72 5.21 5.31 5.70 6.20 7.18 7.87 8.46 8.76 9.15

32 2.005 40 2.506 1.250 3.44 3.83 4.32 4.42 4.82 5.31 6.29 6.98 7.57 7.87 8.26

36 2.256 45 2.820 1.250 2.99 3.38 3.88 3.97 4.37 4.87 5.85 6.54 7.13 7.42 7.82

40 2.506 50 3.133 1.250 3.43 3.53 3.92 4.42 5.40 6.09 6.68 6.98 7.37

48 3.008 60 3.760 1.250 4.51 5.20 5.79 6.09 6.48

64 4.010 80 5.013 1.250 4.70

19 1.191 24 1.504 1.263 3.79 4.87 5.26 5.76 5.85 6.25 6.74 7.72 8.41 9.00 9.30 9.69

38 2.381 48 3.008 1.263 3.13 3.63 3.72 4.12 4.62 5.60 6.29 6.88 7.18 7.57

30 1.880 38 2.381 1.267 2.55 3.63 4.03 4.52 4.62 5.01 5.51 6.49 7.18 7.77 8.06 8.46

22 1.379 28 1.754 1.273 3.44 4.53 4.92 5.41 5.51 5.90 6.40 7.38 8.07 8.66 8.95 9.35

44 2.757 56 3.509 1.273 3.92 4.90 5.60 6.19 6.48 6.88

18 1.128 23 1.441 1.278 3.88 4.97 5.36 5.86 5.95 6.35 6.84 7.82 8.51 9.10 9.40 9.79

25 1.566 32 2.005 1.280 3.09 4.18 4.57 5.07 5.16 5.56 6.05 7.03 7.72 8.31 8.61 9.00

50 3.133 64 4.010 1.280 4.21 4.90 5.49 5.79 6.18

28 1.754 36 2.256 1.286 2.74 3.83 4.22 4.72 4.81 5.21 5.71 6.69 7.38 7.97 8.26 8.66

56 3.509 72 4.511 1.286 4.20 4.79 5.09 5.49

34 2.130 44 2.757 1.294 3.14 3.53 4.02 4.12 4.52 5.01 5.99 6.68 7.28 7.57 7.97

20 1.253 26 1.629 1.300 3.64 4.72 5.11 5.61 5.70 6.10 6.59 7.57 8.26 8.85 9.15 9.54

40 2.506 52 3.258 1.300 3.33 3.42 3.82 4.32 5.30 5.99 6.58 6.88 7.27

23 1.441 30 1.880 1.304 3.29 4.38 4.77 5.26 5.36 5.75 6.25 7.23 7.92 8.51 8.80 9.20

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 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 18 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

grooves No. of

grooves

8.96 9.45 10.43 11.42 12.40 13.38 14.37 16.34 19.29 22.24 25.20 28.15 30.51 37.99 1.125 32 36

8.12 8.61 9.60 10.58 11.57 12.55 13.53 15.50 18.46 21.41 24.36 27.31 29.68 37.16 1.125 40 45

5.61 6.10 7.08 8.07 9.05 10.03 11.02 12.99 15.95 18.90 21.85 24.80 27.17 34.65 1.125 64 72

9.89 10.38 11.37 12.35 13.34 14.32 15.30 17.27 20.23 23.18 26.13 29.08 31.45 38.93 1.130 23 26

9.15 9.64 10.63 11.61 12.60 13.58 14.57 16.54 19.49 22.44 25.40 28.35 30.71 38.19 1.133 30 34

6.00 6.49 7.48 8.46 9.45 10.43 11.41 13.38 16.34 19.29 22.24 25.19 27.56 35.04 1.133 60 68

9.99 10.48 11.47 12.45 13.44 14.42 15.40 17.37 20.33 23.28 26.23 29.18 31.55 39.03 1.136 22 25

7.68 8.17 9.15 10.14 11.12 12.10 13.09 15.06 18.01 20.96 23.92 26.87 29.23 36.71 1.136 44 50

10.09 10.58 11.56 12.55 13.53 14.51 15.50 17.47 20.42 23.37 26.33 29.28 31.65 39.13 1.143 21 24

9.35 9.84 10.83 11.81 12.80 13.78 14.76 16.73 19.69 22.64 25.59 28.54 30.91 38.39 1.143 28 32

6.39 6.89 7.87 8.86 9.84 10.82 11.81 13.78 16.73 19.68 22.64 25.59 27.95 35.43 1.143 56 64

10.19 10.68 11.66 12.65 13.63 14.61 15.60 17.57 20.52 23.47 26.43 29.38 31.74 39.22 1.150 20 23

9.55 10.04 11.02 12.01 12.99 13.97 14.96 16.93 19.88 22.83 25.79 28.74 31.10 38.58 1.154 26 30

6.79 7.28 8.26 9.25 10.23 11.22 12.20 14.17 17.13 20.08 23.03 25.98 28.35 35.83 1.154 52 60

7.53 8.02 9.00 9.99 10.97 11.95 12.94 14.91 17.87 20.82 23.77 26.72 29.09 36.57 1.156 45 52

10.29 10.78 11.76 12.75 13.73 14.71 15.70 17.67 20.62 23.57 26.53 29.48 31.84 39.32 1.158 19 22

8.27 8.76 9.74 10.73 11.71 12.69 13.68 15.65 18.60 21.55 24.51 27.46 29.82 37.30 1.158 38 44

10.39 10.88 11.86 12.85 13.83 14.81 15.80 17.77 20.72 23.67 26.63 29.58 31.94 39.42 1.167 18 21

9.75 10.24 11.22 12.21 13.19 14.17 15.16 17.13 20.08 23.03 25.99 28.94 31.30 38.78 1.167 24 28

7.18 7.67 8.66 9.64 10.63 11.61 12.59 14.56 17.52 20.47 23.43 26.38 28.74 36.22 1.167 48 56

8.66 9.15 10.14 11.12 12.11 13.09 14.07 16.04 19.00 21.95 24.90 27.85 30.22 37.70 1.176 34 40

5.01 5.50 6.49 7.47 8.46 9.44 10.42 12.40 15.35 18.30 21.26 24.21 26.57 34.05 1.176 68 80

9.94 10.43 11.42 12.40 13.39 14.37 15.35 17.32 20.28 23.23 26.18 29.13 31.50 38.98 1.182 22 26

7.58 8.07 9.05 10.04 11.02 12.00 12.99 14.96 17.91 20.86 23.82 26.77 29.13 36.61 1.182 44 52

8.22 8.71 9.69 10.68 11.66 12.64 13.63 15.60 18.55 21.50 24.46 27.41 29.77 37.25 1.184 38 45

8.86 9.35 10.33 11.32 12.30 13.28 14.27 16.24 19.19 22.14 25.10 28.05 30.41 37.89 1.188 32 38

10.04 10.53 11.52 12.50 13.49 14.47 15.45 17.42 20.38 23.33 26.28 29.23 31.60 39.08 1.190 21 25

10.14 10.63 11.61 12.60 13.58 14.56 15.55 17.52 20.47 23.42 26.38 29.33 31.69 39.17 1.200 20 24

9.60 10.09 11.07 12.06 13.04 14.02 15.01 16.98 19.93 22.88 25.84 28.79 31.15 38.63 1.200 25 30

9.05 9.54 10.53 11.52 12.50 13.48 14.47 16.44 19.39 22.34 25.30 28.25 30.61 38.09 1.200 30 36

7.97 8.46 9.45 10.43 11.42 12.40 13.38 15.35 18.31 21.26 24.21 27.16 29.53 37.01 1.200 40 48

6.88 7.37 8.36 9.35 10.33 11.31 12.30 14.27 17.22 20.17 23.13 26.08 28.44 35.92 1.200 50 60

5.80 6.29 7.27 8.26 9.25 10.23 11.21 13.18 16.14 19.09 22.05 25.00 27.36 34.84 1.200 60 72

10.24 10.73 11.71 12.70 13.68 14.66 15.65 17.62 20.57 23.52 26.48 29.43 31.79 39.27 1.211 19 23

9.25 9.74 10.73 11.71 12.70 13.68 14.66 16.63 19.59 22.54 25.49 28.44 30.81 38.29 1.214 28 34

6.19 6.68 7.67 8.65 9.64 10.62 11.61 13.58 16.53 19.48 22.44 25.39 27.75 35.24 1.214 56 68

9.79 10.28 11.27 12.25 13.24 14.22 15.20 17.17 20.13 23.08 26.04 28.99 31.35 38.83 1.217 23 28

10.34 10.83 11.81 12.80 13.78 14.76 15.75 17.72 20.67 23.62 26.58 29.53 31.89 39.37 1.222 18 22

8.36 8.85 9.84 10.82 11.81 12.79 13.78 15.75 18.70 21.65 24.61 27.56 29.92 37.40 1.222 36 44

9.45 9.94 10.92 11.91 12.89 13.87 14.86 16.83 19.78 22.74 25.69 28.64 31.01 38.49 1.231 26 32

6.59 7.08 8.06 9.05 10.03 11.02 12.00 13.97 16.93 19.88 22.83 25.78 28.15 35.63 1.231 52 64

9.99 10.48 11.47 12.45 13.44 14.42 15.40 17.37 20.33 23.28 26.23 29.18 31.55 39.03 1.238 21 26

7.33 7.82 8.80 9.79 10.77 11.75 12.74 14.71 17.67 20.62 23.57 26.52 28.89 36.37 1.244 45 56

10.09 10.58 11.56 12.55 13.54 14.52 15.50 17.47 20.43 23.38 26.33 29.28 31.65 39.13 1.250 20 25

9.65 10.14 11.12 12.11 13.09 14.07 15.06 17.03 19.98 22.93 25.89 28.84 31.20 38.68 1.250 24 30

8.76 9.25 10.23 11.22 12.20 13.18 14.17 16.14 19.10 22.05 25.00 27.95 30.32 37.80 1.250 32 40

8.31 8.80 9.79 10.77 11.76 12.74 13.73 15.70 18.65 21.60 24.56 27.51 29.87 37.35 1.250 36 45

7.87 8.36 9.35 10.33 11.32 12.30 13.28 15.25 18.21 21.16 24.11 27.06 29.43 36.91 1.250 40 50

6.98 7.47 8.46 9.44 10.43 11.41 12.39 14.36 17.32 20.27 23.23 26.18 28.54 36.02 1.250 48 60

5.19 5.69 6.67 7.66 8.65 9.63 10.62 12.59 15.55 18.50 21.45 24.40 26.77 34.25 1.250 64 80

10.19 10.68 11.66 12.65 13.63 14.61 15.60 17.57 20.52 23.47 26.43 29.38 31.74 39.22 1.263 19 24

8.07 8.56 9.54 10.53 11.51 12.49 13.48 15.45 18.40 21.36 24.31 27.26 29.63 37.11 1.263 38 48

8.95 9.45 10.43 11.42 12.40 13.38 14.37 16.34 19.29 22.24 25.20 28.15 30.51 37.99 1.267 30 38

9.84 10.33 11.32 12.30 13.29 14.27 15.25 17.22 20.18 23.13 26.08 29.03 31.40 38.88 1.273 22 28

7.37 7.86 8.85 9.84 10.82 11.80 12.79 14.76 17.71 20.67 23.62 26.57 28.94 36.42 1.273 44 56

10.29 10.78 11.76 12.75 13.73 14.71 15.70 17.67 20.62 23.57 26.53 29.48 31.84 39.32 1.278 18 23

9.50 9.99 10.97 11.96 12.94 13.92 14.91 16.88 19.83 22.78 25.74 28.69 31.05 38.53 1.280 25 32

6.68 7.17 8.16 9.14 10.13 11.11 12.10 14.07 17.02 19.98 22.93 25.88 28.25 35.73 1.280 50 64

9.15 9.64 10.63 11.61 12.60 13.58 14.56 16.53 19.49 22.44 25.39 28.34 30.71 38.19 1.286 28 36

5.99 6.48 7.46 8.45 9.44 10.42 11.41 13.38 16.33 19.28 22.24 25.19 27.56 35.04 1.286 56 72

8.46 8.95 9.94 10.92 11.91 12.89 13.87 15.84 18.80 21.75 24.70 27.65 30.02 37.50 1.294 34 44

10.04 10.53 11.51 12.50 13.49 14.47 15.45 17.42 20.38 23.33 26.28 29.23 31.60 39.08 1.300 20 26

7.77 8.26 9.25 10.23 11.22 12.20 13.18 15.15 18.11 21.06 24.02 26.97 29.33 36.81 1.300 40 52

9.69 10.18 11.17 12.15 13.14 14.12 15.11 17.08 20.03 22.98 25.94 28.89 31.25 38.73 1.304 23 30

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

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

*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.

The Driving Force in Power Transmission. Page 19

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

5MR-300

P.L 11.811

60 teeth

5MR-355

P.L 13.976

71 teeth

5MR-375

P.L 14.764

75 teeth

5MR-400

P.L 15.748

80 teeth

5MR-405

P.L 15.945

81 teeth

5MR-425

P.L 16.732

85 teeth

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

26 1.629 34 2.130 1.308 2.94 4.03 4.42 4.92 5.01 5.41 5.90 6.88 7.57 8.16 8.46 8.85

52 3.258 68 4.261 1.308 4.60 5.19 5.49 5.88

19 1.191 25 1.566 1.316 3.73 4.82 5.21 5.71 5.80 6.20 6.69 7.67 8.36 8.95 9.25 9.64

38 2.381 50 3.133 1.316 3.52 3.62 4.02 4.51 5.50 6.19 6.78 7.07 7.47

34 2.130 45 2.820 1.324 3.08 3.48 3.97 4.07 4.46 4.96 5.94 6.63 7.22 7.52 7.91

68 4.261 90 5.639 1.324

18 1.128 24 1.504 1.333 3.83 4.92 5.31 5.80 5.90 6.30 6.79 7.77 8.46 9.05 9.35 9.74

21 1.316 28 1.754 1.333 3.49 4.57 4.96 5.46 5.55 5.95 6.45 7.43 8.12 8.71 9.00 9.40

24 1.504 32 2.005 1.333 3.14 4.23 4.62 5.11 5.21 5.60 6.10 7.08 7.77 8.36 8.66 9.05

30 1.880 40 2.506 1.333 3.53 3.92 4.42 4.51 4.91 5.41 6.39 7.08 7.67 7.96 8.36

36 2.256 48 3.008 1.333 3.22 3.72 3.82 4.21 4.71 5.69 6.38 6.98 7.27 7.67

45 2.820 60 3.760 1.333 3.66 4.65 5.34 5.93 6.23 6.63

48 3.008 64 4.010 1.333 4.30 4.99 5.59 5.88 6.28

60 3.760 80 5.013 1.333 4.88

28 1.754 38 2.381 1.357 2.64 3.73 4.12 4.62 4.71 5.11 5.60 6.58 7.28 7.87 8.16 8.56

25 1.566 34 2.130 1.360 2.99 4.08 4.47 4.96 5.06 5.45 5.95 6.93 7.62 8.21 8.51 8.90

50 3.133 68 4.261 1.360 4.69 5.28 5.58 5.98

22 1.379 30 1.880 1.364 3.34 4.42 4.81 5.31 5.40 5.80 6.30 7.28 7.97 8.56 8.85 9.25

44 2.757 60 3.760 1.364 3.71 4.69 5.39 5.98 6.28 6.67

19 1.191 26 1.629 1.368 3.68 4.77 5.16 5.66 5.75 6.15 6.64 7.62 8.31 8.90 9.20 9.59

38 2.381 52 3.258 1.368 3.42 3.51 3.91 4.41 5.39 6.09 6.68 6.97 7.37

32 2.005 44 2.757 1.375 3.23 3.62 4.12 4.21 4.61 5.11 6.09 6.78 7.37 7.67 8.06

26 1.629 36 2.256 1.385 2.84 3.93 4.32 4.81 4.91 5.30 5.80 6.78 7.47 8.06 8.36 8.75

52 3.258 72 4.511 1.385 4.38 4.98 5.28 5.67

18 1.128 25 1.566 1.389 3.78 4.87 5.26 5.75 5.85 6.25 6.74 7.72 8.41 9.00 9.30 9.69

36 2.256 50 3.133 1.389 3.12 3.62 3.71 4.11 4.61 5.59 6.28 6.87 7.17 7.56

23 1.441 32 2.005 1.391 3.19 4.27 4.66 5.16 5.26 5.65 6.15 7.13 7.82 8.41 8.70 9.10

20 1.253 28 1.754 1.400 3.53 4.62 5.01 5.51 5.60 6.00 6.49 7.47 8.16 8.75 9.05 9.44

40 2.506 56 3.509 1.400 3.61 4.11 5.09 5.78 6.38 6.67 7.07

32 2.005 45 2.820 1.406 3.17 3.57 4.07 4.16 4.56 5.05 6.04 6.73 7.32 7.61 8.01

64 4.010 90 5.639 1.406

34 2.130 48 3.008 1.412 2.92 3.32 3.81 3.91 4.31 4.80 5.79 6.48 7.07 7.37 7.76

24 1.504 34 2.130 1.417 3.03 4.12 4.52 5.01 5.11 5.50 6.00 6.98 7.67 8.26 8.56 8.95

48 3.008 68 4.261 1.417 4.08 4.78 5.37 5.67 6.07

45 2.820 64 4.010 1.422 4.44 5.13 5.72 6.02 6.42

21 1.316 30 1.880 1.429 3.38 4.47 4.86 5.36 5.45 5.85 6.34 7.32 8.01 8.61 8.90 9.30

28 1.754 40 2.506 1.429 2.53 3.62 4.02 4.51 4.61 5.01 5.50 6.48 7.17 7.77 8.06 8.46

56 3.509 80 5.013 1.429 4.66 5.06

25 1.566 36 2.256 1.440 2.88 3.97 4.36 4.86 4.96 5.35 5.85 6.83 7.52 8.11 8.41 8.80

50 3.133 72 4.511 1.440 4.47 5.07 5.37 5.77

18 1.128 26 1.629 1.444 3.73 4.82 5.21 5.70 5.80 6.19 6.69 7.67 8.36 8.95 9.25 9.64

36 2.256 52 3.258 1.444 3.51 3.60 4.00 4.50 5.49 6.18 6.77 7.07 7.46

22 1.379 32 2.005 1.455 3.23 4.32 4.71 5.21 5.30 5.70 6.19 7.18 7.87 8.46 8.75 9.15

44 2.757 64 4.010 1.455 4.48 5.18 5.77 6.07 6.46

26 1.629 38 2.381 1.462 2.73 3.82 4.21 4.71 4.81 5.20 5.70 6.68 7.37 7.96 8.26 8.65

30 1.880 44 2.757 1.467 3.32 3.71 4.21 4.31 4.70 5.20 6.18 6.87 7.47 7.76 8.16

34 2.130 50 3.133 1.471 3.21 3.71 3.80 4.20 4.70 5.68 6.38 6.97 7.26 7.66

19 1.191 28 1.754 1.474 3.58 4.67 5.06 5.55 5.65 6.05 6.54 7.52 8.21 8.80 9.10 9.49

38 2.381 56 3.509 1.474 3.30 3.70 4.20 5.18 5.88 6.47 6.77 7.16

23 1.441 34 2.130 1.478 3.08 4.17 4.56 5.06 5.15 5.55 6.05 7.03 7.72 8.31 8.60 9.00

20 1.253 30 1.880 1.500 3.43 4.52 4.91 5.41 5.50 5.90 6.39 7.37 8.06 8.65 8.95 9.34

24 1.504 36 2.256 1.500 2.93 4.02 4.41 4.91 5.00 5.40 5.89 6.88 7.57 8.16 8.45 8.85

30 1.880 45 2.820 1.500 3.26 3.66 4.16 4.25 4.65 5.15 6.13 6.82 7.41 7.71 8.11

32 2.005 48 3.008 1.500 3.01 3.41 3.91 4.00 4.40 4.90 5.88 6.57 7.17 7.46 7.86

40 2.506 60 3.760 1.500 3.89 4.88 5.57 6.17 6.46 6.86

48 3.008 72 4.511 1.500 4.56 5.16 5.46 5.86

60 3.760 90 5.639 1.500

45 2.820 68 4.261 1.511 4.22 4.92 5.51 5.81 6.21

25 1.566 38 2.381 1.520 2.78 3.87 4.26 4.76 4.85 5.25 5.75 6.73 7.42 8.01 8.31 8.70

21 1.316 32 2.005 1.524 3.28 4.37 4.76 5.26 5.35 5.75 6.24 7.22 7.91 8.50 8.80 9.20

34 2.130 52 3.258 1.529 3.10 3.60 3.70 4.09 4.59 5.58 6.27 6.87 7.16 7.56

26 1.629 40 2.506 1.538 2.62 3.72 4.11 4.61 4.70 5.10 5.60 6.58 7.27 7.86 8.16 8.55

52 3.258 80 5.013 1.538 4.54 4.84 5.24

22 1.379 34 2.130 1.545 3.13 4.22 4.61 5.11 5.20 5.60 6.09 7.07 7.76 8.36 8.65 9.05

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 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 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

grooves No. of

grooves

9.35 9.84 10.82 11.81 12.80 13.78 14.76 16.73 19.69 22.64 25.59 28.54 30.91 38.39 1.308 26 34

6.38 6.87 7.86 8.85 9.83 10.81 11.80 13.77 16.73 19.68 22.63 25.58 27.95 35.43 1.308 52 68

10.14 10.63 11.61 12.60 13.58 14.56 15.55 17.52 20.47 23.42 26.38 29.33 31.69 39.17 1.316 19 25

7.97 8.46 9.44 10.43 11.41 12.39 13.38 15.35 18.31 21.26 24.21 27.16 29.53 37.01 1.316 38 50

8.41 8.90 9.89 10.87 11.86 12.84 13.82 15.79 18.75 21.70 24.65 27.61 29.97 37.45 1.324 34 45

5.96 6.96 7.94 8.93 9.92 11.89 14.85 17.80 20.76 23.71 26.08 33.56 1.324 68 90

10.24 10.73 11.71 12.70 13.68 14.66 15.65 17.62 20.57 23.52 26.48 29.43 31.79 39.27 1.333 18 24

9.89 10.38 11.37 12.35 13.34 14.32 15.30 17.27 20.23 23.18 26.13 29.08 31.45 38.93 1.333 21 28

9.55 10.04 11.02 12.01 12.99 13.97 14.96 16.93 19.88 22.83 25.79 28.74 31.10 38.58 1.333 24 32

8.85 9.35 10.33 11.32 12.30 13.28 14.27 16.24 19.19 22.14 25.10 28.05 30.41 37.89 1.333 30 40

8.16 8.65 9.64 10.62 11.61 12.59 13.58 15.55 18.50 21.45 24.41 27.36 29.72 37.20 1.333 36 48

7.12 7.61 8.60 9.59 10.57 11.55 12.54 14.51 17.47 20.42 23.37 26.32 28.69 36.17 1.333 45 60

6.77 7.27 8.25 9.24 10.23 11.21 12.19 14.16 17.12 20.07 23.03 25.98 28.34 35.82 1.333 48 64

5.38 5.87 6.86 7.85 8.84 9.82 10.81 12.78 15.74 18.69 21.65 24.60 26.96 34.44 1.333 60 80

9.05 9.54 10.53 11.51 12.50 13.48 14.46 16.43 19.39 22.34 25.30 28.25 30.61 38.09 1.357 28 38

9.40 9.89 10.87 11.86 12.84 13.82 14.81 16.78 19.74 22.69 25.64 28.59 30.96 38.44 1.360 25 34

6.47 6.96 7.95 8.94 9.93 10.91 11.89 13.87 16.82 19.77 22.73 25.68 28.05 35.53 1.360 50 68

9.74 10.23 11.22 12.20 13.19 14.17 15.15 17.12 20.08 23.03 25.98 28.93 31.30 38.78 1.364 22 30

7.17 7.66 8.65 9.63 10.62 11.60 12.59 14.56 17.51 20.47 23.42 26.37 28.74 36.22 1.364 44 60

10.09 10.58 11.56 12.55 13.53 14.51 15.50 17.47 20.42 23.37 26.33 29.28 31.64 39.12 1.368 19 26

7.86 8.35 9.34 10.33 11.31 12.29 13.28 15.25 18.21 21.16 24.11 27.06 29.43 36.91 1.368 38 52

8.56 9.05 10.03 11.02 12.00 12.98 13.97 15.94 18.90 21.85 24.80 27.75 30.12 37.60 1.375 32 44

9.25 9.74 10.72 11.71 12.69 13.68 14.66 16.63 19.59 22.54 25.49 28.44 30.81 38.29 1.385 26 36

6.17 6.66 7.65 8.64 9.63 10.61 11.60 13.57 16.53 19.48 22.43 25.39 27.75 35.23 1.385 52 72

10.19 10.68 11.66 12.65 13.63 14.61 15.60 17.57 20.52 23.47 26.43 29.38 31.74 39.22 1.389 18 25

8.06 8.55 9.54 10.52 11.51 12.49 13.48 15.45 18.40 21.35 24.31 27.26 29.62 37.10 1.389 36 50

9.59 10.08 11.07 12.06 13.04 14.02 15.01 16.98 19.93 22.88 25.84 28.79 31.15 38.63 1.391 23 32

9.94 10.43 11.42 12.40 13.39 14.37 15.35 17.32 20.28 23.23 26.18 29.13 31.50 38.98 1.400 20 28

7.56 8.06 9.04 10.03 11.01 12.00 12.98 14.95 17.91 20.86 23.82 26.77 29.13 36.61 1.400 40 56

8.51 9.00 9.98 10.97 11.95 12.93 13.92 15.89 18.85 21.80 24.75 27.70 30.07 37.55 1.406 32 45

5.15 6.15 7.14 8.13 9.12 10.10 12.08 15.04 17.99 20.95 23.90 26.27 33.75 1.406 64 90

8.26 8.75 9.73 10.72 11.71 12.69 13.67 15.64 18.60 21.55 24.51 27.46 29.82 37.30 1.412 34 48

9.45 9.94 10.92 11.91 12.89 13.87 14.86 16.83 19.78 22.73 25.69 28.64 31.00 38.48 1.417 24 34

6.57 7.06 8.05 9.03 10.02 11.00 11.99 13.96 16.92 19.87 22.83 25.78 28.14 35.63 1.417 48 68

6.92 7.41 8.39 9.38 10.37 11.35 12.34 14.31 17.27 20.22 23.17 26.12 28.49 35.97 1.422 45 64

9.79 10.28 11.27 12.25 13.24 14.22 15.20 17.17 20.13 23.08 26.03 28.98 31.35 38.83 1.429 21 30

8.95 9.44 10.43 11.41 12.40 13.38 14.36 16.33 19.29 22.24 25.20 28.15 30.51 37.99 1.429 28 40

5.56 6.06 7.05 8.04 9.03 10.01 11.00 12.97 15.93 18.88 21.84 24.79 27.16 34.64 1.429 56 80

9.30 9.79 10.77 11.76 12.74 13.72 14.71 16.68 19.64 22.59 25.54 28.49 30.86 38.34 1.440 25 36

6.26 6.76 7.75 8.73 9.72 10.70 11.69 13.66 16.62 19.57 22.53 25.48 27.85 35.33 1.440 50 72

10.14 10.63 11.61 12.60 13.58 14.56 15.55 17.52 20.47 23.42 26.38 29.33 31.69 39.17 1.444 18 26

7.96 8.45 9.44 10.42 11.41 12.39 13.37 15.35 18.30 21.25 24.21 27.16 29.53 37.01 1.444 36 52

9.64 10.13 11.12 12.10 13.09 14.07 15.05 17.02 19.98 22.93 25.89 28.84 31.20 38.68 1.455 22 32

6.96 7.45 8.44 9.43 10.42 11.40 12.38 14.36 17.31 20.27 23.22 26.17 28.54 36.02 1.455 44 64

9.15 9.64 10.62 11.61 12.59 13.58 14.56 16.53 19.49 22.44 25.39 28.34 30.71 38.19 1.462 26 38

8.65 9.14 10.13 11.11 12.10 13.08 14.07 16.04 18.99 21.94 24.90 27.85 30.21 37.70 1.467 30 44

8.16 8.65 9.63 10.62 11.61 12.59 13.57 15.54 18.50 21.45 24.41 27.36 29.72 37.20 1.471 34 50

9.99 10.48 11.46 12.45 13.43 14.41 15.40 17.37 20.33 23.28 26.23 29.18 31.55 39.03 1.474 19 28

7.66 8.15 9.14 10.12 11.11 12.09 13.08 15.05 18.01 20.96 23.91 26.86 29.23 36.71 1.474 38 56

9.49 9.98 10.97 11.96 12.94 13.92 14.91 16.88 19.83 22.78 25.74 28.69 31.05 38.53 1.478 23 34

9.84 10.33 11.32 12.30 13.29 14.27 15.25 17.22 20.18 23.13 26.08 29.03 31.40 38.88 1.500 20 30

9.34 9.83 10.82 11.81 12.79 13.77 14.76 16.73 19.68 22.63 25.59 28.54 30.90 38.39 1.500 24 36

8.60 9.09 10.08 11.06 12.05 13.03 14.02 15.99 18.94 21.89 24.85 27.80 30.16 37.65 1.500 30 45

8.35 8.84 9.83 10.82 11.80 12.78 13.77 15.74 18.70 21.65 24.60 27.55 29.92 37.40 1.500 32 48

7.36 7.85 8.84 9.82 10.81 11.79 12.78 14.75 17.71 20.66 23.62 26.57 28.93 36.41 1.500 40 60

6.36 6.85 7.84 8.83 9.82 10.80 11.79 13.76 16.72 19.67 22.63 25.58 27.94 35.43 1.500 48 72

5.33 6.33 7.32 8.31 9.30 10.29 12.27 15.23 18.18 21.14 24.09 26.46 33.95 1.500 60 90

6.70 7.20 8.19 9.18 10.16 11.15 12.13 14.11 17.06 20.02 22.97 25.92 28.29 35.77 1.511 45 68

9.20 9.69 10.67 11.66 12.64 13.62 14.61 16.58 19.54 22.49 25.44 28.39 30.76 38.24 1.520 25 38

9.69 10.18 11.17 12.15 13.14 14.12 15.10 17.07 20.03 22.98 25.93 28.88 31.25 38.73 1.524 21 32

8.05 8.54 9.53 10.52 11.50 12.49 13.47 15.44 18.40 21.35 24.31 27.26 29.62 37.10 1.529 34 52

9.05 9.54 10.52 11.51 12.49 13.48 14.46 16.43 19.39 22.34 25.29 28.24 30.61 38.09 1.538 26 40

5.74 6.24 7.23 8.22 9.21 10.20 11.18 13.16 16.12 19.07 22.03 24.98 27.35 34.83 1.538 52 80

9.54 10.03 11.02 12.00 12.99 13.97 14.95 16.92 19.88 22.83 25.79 28.74 31.10 38.58 1.545 22 34

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

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

*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.

The Driving Force in Power Transmission. Page 21

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

5MR-300

P.L 11.811

60 teeth

5MR-355

P.L 13.976

71 teeth

5MR-375

P.L 14.764

75 teeth

5MR-400

P.L 15.748

80 teeth

5MR-405

P.L 15.945

81 teeth

5MR-425

P.L 16.732

85 teeth

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

44 2.757 68 4.261 1.545 4.26 4.96 5.56 5.85 6.25

18 1.128 28 1.754 1.556 3.63 4.72 5.11 5.60 5.70 6.09 6.59 7.57 8.26 8.85 9.15 9.54

36 2.256 56 3.509 1.556 3.29 3.38 3.79 4.29 5.27 5.97 6.56 6.86 7.26

32 2.005 50 3.133 1.563 2.90 3.30 3.80 3.89 4.29 4.79 5.78 6.47 7.06 7.36 7.75

23 1.441 36 2.256 1.565 2.97 4.07 4.46 4.95 5.05 5.45 5.94 6.92 7.62 8.21 8.50 8.90

28 1.754 44 2.757 1.571 3.41 3.80 4.30 4.40 4.80 5.29 6.28 6.97 7.56 7.86 8.25

19 1.191 30 1.880 1.579 3.48 4.57 4.96 5.45 5.55 5.94 6.44 7.42 8.11 8.70 9.00 9.39

38 2.381 60 3.760 1.579 3.47 3.98 4.97 5.66 6.26 6.56 6.95

24 1.504 38 2.381 1.583 2.82 3.91 4.31 4.80 4.90 5.30 5.79 6.77 7.47 8.06 8.35 8.75

20 1.253 32 2.005 1.600 3.32 4.42 4.81 5.30 5.40 5.79 6.29 7.27 7.96 8.55 8.85 9.24

25 1.566 40 2.506 1.600 2.67 3.76 4.16 4.65 4.75 5.15 5.64 6.63 7.32 7.91 8.20 8.60

30 1.880 48 3.008 1.600 3.10 3.50 4.00 4.09 4.49 4.99 5.97 6.67 7.26 7.55 7.95

40 2.506 64 4.010 1.600 3.66 4.66 5.36 5.95 6.25 6.65

45 2.820 72 4.511 1.600 3.99 4.70 5.29 5.59 5.99

50 3.133 80 5.013 1.600 4.63 4.93 5.33

28 1.754 45 2.820 1.607 3.36 3.75 4.25 4.34 4.74 5.24 6.22 6.92 7.51 7.80 8.20

56 3.509 90 5.639 1.607

21 1.316 34 2.130 1.619 3.17 4.26 4.66 5.15 5.25 5.64 6.14 7.12 7.81 8.40 8.70 9.09

32 2.005 52 3.258 1.625 3.18 3.69 3.78 4.18 4.68 5.67 6.37 6.96 7.25 7.65

22 1.379 36 2.256 1.636 3.02 4.11 4.50 5.00 5.10 5.49 5.99 6.97 7.66 8.25 8.55 8.94

44 2.757 72 4.511 1.636 4.04 4.74 5.34 5.64 6.04

34 2.130 56 3.509 1.647 3.38 3.47 3.87 4.38 5.37 6.06 6.66 6.95 7.35

68 4.261 112 7.018 1.647

23 1.441 38 2.381 1.652 2.86 3.96 4.35 4.85 4.95 5.34 5.84 6.82 7.51 8.10 8.40 8.80

18 1.128 30 1.880 1.667 3.52 4.61 5.00 5.50 5.59 5.99 6.49 7.47 8.16 8.75 9.04 9.44

24 1.504 40 2.506 1.667 2.71 3.81 4.20 4.70 4.79 5.19 5.69 6.67 7.36 7.95 8.25 8.65

30 1.880 50 3.133 1.667 2.99 3.38 3.89 3.98 4.38 4.88 5.87 6.56 7.16 7.45 7.85

36 2.256 60 3.760 1.667 3.56 4.07 5.06 5.76 6.35 6.65 7.04

48 3.008 80 5.013 1.667 4.71 5.01 5.42

19 1.191 32 2.005 1.684 3.37 4.46 4.85 5.35 5.44 5.84 6.34 7.32 8.01 8.60 8.90 9.29

38 2.381 64 4.010 1.684 3.75 4.75 5.45 6.05 6.34 6.74

26 1.629 44 2.757 1.692 3.50 3.89 4.39 4.49 4.89 5.39 6.37 7.06 7.65 7.95 8.35

20 1.253 34 2.130 1.700 3.22 4.31 4.70 5.20 5.29 5.69 6.19 7.17 7.86 8.45 8.75 9.14

40 2.506 68 4.261 1.700 4.44 5.14 5.74 6.04 6.44

21 1.316 36 2.256 1.714 3.06 4.16 4.55 5.05 5.14 5.54 6.04 7.02 7.71 8.30 8.60 8.99

28 1.754 48 3.008 1.714 3.19 3.58 4.09 4.18 4.58 5.08 6.07 6.76 7.35 7.65 8.05

22 1.379 38 2.381 1.727 2.91 4.01 4.40 4.90 4.99 5.39 5.89 6.87 7.56 8.15 8.45 8.84

26 1.629 45 2.820 1.731 3.44 3.84 4.34 4.44 4.83 5.33 6.32 7.01 7.60 7.90 8.29

52 3.258 90 5.639 1.731 4.67

30 1.880 52 3.258 1.733 3.27 3.78 3.87 4.27 4.77 5.76 6.46 7.05 7.35 7.74

23 1.441 40 2.506 1.739 2.75 3.85 4.25 4.75 4.84 5.24 5.74 6.72 7.41 8.00 8.30 8.69

32 2.005 56 3.509 1.750 3.46 3.56 3.96 4.47 5.46 6.15 6.75 7.04 7.44

64 4.010 112 7.018 1.750

25 1.566 44 2.757 1.760 3.54 3.94 4.44 4.54 4.93 5.43 6.42 7.11 7.70 8.00 8.39

34 2.130 60 3.760 1.765 3.65 4.15 5.15 5.85 6.44 6.74 7.14

18 1.128 32 2.005 1.778 3.42 4.51 4.90 5.40 5.49 5.89 6.38 7.37 8.06 8.65 8.94 9.34

36 2.256 64 4.010 1.778 3.84 4.84 5.54 6.14 6.43 6.83

45 2.820 80 5.013 1.778 4.24 4.84 5.15 5.55

28 1.754 50 3.133 1.786 3.07 3.47 3.98 4.07 4.47 4.97 5.96 6.66 7.25 7.55 7.94

19 1.191 34 2.130 1.789 3.26 4.36 4.75 5.25 5.34 5.74 6.23 7.22 7.91 8.50 8.79 9.19

38 2.381 68 4.261 1.789 4.53 5.23 5.83 6.13 6.53

20 1.253 36 2.256 1.800 3.11 4.20 4.60 5.09 5.19 5.59 6.08 7.07 7.76 8.35 8.64 9.04

25 1.566 45 2.820 1.800 3.49 3.88 4.39 4.48 4.88 5.38 6.36 7.06 7.65 7.95 8.34

40 2.506 72 4.511 1.800 4.21 4.92 5.52 5.82 6.22

50 3.133 90 5.639 1.800 4.75

21 1.316 38 2.381 1.810 2.95 4.05 4.44 4.94 5.04 5.44 5.93 6.92 7.61 8.20 8.49 8.89

22 1.379 40 2.506 1.818 2.80 3.90 4.29 4.79 4.89 5.28 5.78 6.77 7.46 8.05 8.34 8.74

44 2.757 80 5.013 1.818 4.28 4.89 5.19 5.59

24 1.504 44 2.757 1.833 2.48 3.59 3.98 4.48 4.58 4.98 5.48 6.46 7.16 7.75 8.04 8.44

26 1.629 48 3.008 1.846 3.28 3.67 4.18 4.27 4.67 5.17 6.16 6.85 7.45 7.74 8.14

28 1.754 52 3.258 1.857 2.96 3.36 3.87 3.96 4.36 4.87 5.86 6.55 7.14 7.44 7.84

30 1.880 56 3.509 1.867 3.04 3.55 3.65 4.05 4.55 5.55 6.24 6.84 7.14 7.53

60 3.760 112 7.018 1.867

24 1.504 45 2.820 1.875 3.53 3.93 4.43 4.53 4.92 5.42 6.41 7.10 7.70 7.99 8.39

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 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 22 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

grooves No. of

grooves

6.75 7.24 8.23 9.22 10.21 11.19 12.18 14.15 17.11 20.06 23.02 25.97 28.34 35.82 1.545 44 68

10.04 10.53 11.51 12.50 13.48 14.46 15.45 17.42 20.37 23.32 26.28 29.23 31.59 39.08 1.556 18 28

7.75 8.24 9.23 10.22 11.20 12.19 13.17 15.14 18.10 21.05 24.01 26.96 29.33 36.81 1.556 36 56

8.25 8.74 9.73 10.71 11.70 12.68 13.67 15.64 18.60 21.55 24.50 27.45 29.82 37.30 1.563 32 50

9.39 9.88 10.87 11.85 12.84 13.82 14.81 16.78 19.73 22.68 25.64 28.59 30.95 38.43 1.565 23 36

8.75 9.24 10.22 11.21 12.20 13.18 14.16 16.13 19.09 22.04 25.00 27.95 30.31 37.79 1.571 28 44

9.89 10.38 11.36 12.35 13.33 14.31 15.30 17.27 20.23 23.18 26.13 29.08 31.45 38.93 1.579 19 30

7.45 7.94 8.93 9.92 10.91 11.89 12.87 14.85 17.80 20.76 23.71 26.66 29.03 36.51 1.579 38 60

9.24 9.73 10.72 11.71 12.69 13.67 14.66 16.63 19.58 22.53 25.49 28.44 30.81 38.29 1.583 24 38

9.74 10.23 11.21 12.20 13.19 14.17 15.15 17.12 20.08 23.03 25.98 28.93 31.30 38.78 1.600 20 32

9.09 9.59 10.57 11.56 12.54 13.52 14.51 16.48 19.44 22.39 25.34 28.29 30.66 38.14 1.600 25 40

8.45 8.94 9.92 10.91 11.90 12.88 13.86 15.84 18.79 21.74 24.70 27.65 30.02 37.50 1.600 30 48

7.15 7.64 8.63 9.62 10.61 11.59 12.57 14.55 17.51 20.46 23.42 26.37 28.73 36.21 1.600 40 64

6.49 6.99 7.98 8.97 9.96 10.94 11.93 13.90 16.86 19.81 22.77 25.72 28.09 35.57 1.600 45 72

5.83 6.33 7.32 8.31 9.30 10.29 11.28 13.25 16.21 19.17 22.13 25.08 27.45 34.93 1.600 50 80

8.70 9.19 10.17 11.16 12.15 13.13 14.11 16.08 19.04 21.99 24.95 27.90 30.26 37.74 1.607 28 45

5.01 5.51 6.51 7.50 8.50 9.49 10.48 12.45 15.42 18.37 21.33 24.29 26.65 34.14 1.607 56 90

9.59 10.08 11.07 12.05 13.04 14.02 15.00 16.97 19.93 22.88 25.84 28.79 31.15 38.63 1.619 21 34

8.15 8.64 9.63 10.61 11.60 12.58 13.57 15.54 18.50 21.45 24.40 27.35 29.72 37.20 1.625 32 52

9.44 9.93 10.92 11.90 12.89 13.87 14.85 16.82 19.78 22.73 25.69 28.64 31.00 38.48 1.636 22 36

6.54 7.03 8.02 9.01 10.00 10.99 11.97 13.95 16.91 19.86 22.82 25.77 28.14 35.62 1.636 44 72

7.85 8.34 9.33 10.31 11.30 12.28 13.27 15.24 18.20 21.15 24.11 27.06 29.42 36.90 1.647 34 56

6.75 7.75 8.75 10.74 13.71 16.67 19.64 22.59 24.96 32.45 1.647 68 112

9.29 9.78 10.77 11.75 12.74 13.72 14.71 16.68 19.63 22.58 25.54 28.49 30.85 38.34 1.652 23 38

9.94 10.43 11.41 12.40 13.38 14.36 15.35 17.32 20.27 23.22 26.18 29.13 31.50 38.98 1.667 18 30

9.14 9.63 10.62 11.60 12.59 13.57 14.56 16.53 19.48 22.43 25.39 28.34 30.71 38.19 1.667 24 40

8.34 8.84 9.82 10.81 11.80 12.78 13.76 15.74 18.69 21.64 24.60 27.55 29.92 37.40 1.667 30 50

7.54 8.03 9.02 10.01 11.00 11.98 12.97 14.94 17.90 20.85 23.81 26.76 29.13 36.61 1.667 36 60

5.92 6.42 7.41 8.41 9.40 10.38 11.37 13.35 16.31 19.26 22.22 25.18 27.54 35.03 1.667 48 80

9.79 10.28 11.26 12.25 13.23 14.21 15.20 17.17 20.13 23.08 26.03 28.98 31.35 38.83 1.684 19 32

7.24 7.73 8.72 9.71 10.70 11.68 12.67 14.64 17.60 20.55 23.51 26.46 28.83 36.31 1.684 38 64

8.84 9.33 10.32 11.31 12.29 13.27 14.26 16.23 19.19 22.14 25.09 28.04 30.41 37.89 1.692 26 44

9.64 10.13 11.11 12.10 13.09 14.07 15.05 17.02 19.98 22.93 25.88 28.83 31.20 38.68 1.700 20 34

6.93 7.43 8.42 9.41 10.40 11.38 12.37 14.34 17.30 20.26 23.21 26.17 28.53 36.01 1.700 40 68

9.49 9.98 10.96 11.95 12.94 13.92 14.90 16.87 19.83 22.78 25.74 28.69 31.05 38.53 1.714 21 36

8.54 9.03 10.02 11.01 11.99 12.97 13.96 15.93 18.89 21.84 24.80 27.75 30.11 37.59 1.714 28 48

9.34 9.83 10.82 11.80 12.79 13.77 14.75 16.72 19.68 22.63 25.59 28.54 30.90 38.38 1.727 22 38

8.79 9.28 10.27 11.26 12.24 13.22 14.21 16.18 19.14 22.09 25.04 27.99 30.36 37.84 1.731 26 45

5.18 5.68 6.69 7.68 8.68 9.67 10.66 12.64 15.61 18.56 21.52 24.48 26.85 34.33 1.731 52 90

8.24 8.73 9.72 10.71 11.69 12.68 13.66 15.63 18.59 21.54 24.50 27.45 29.82 37.30 1.733 30 52

9.19 9.68 10.67 11.65 12.64 13.62 14.61 16.58 19.53 22.48 25.44 28.39 30.76 38.24 1.739 23 40

7.94 8.43 9.42 10.41 11.39 12.38 13.36 15.34 18.29 21.25 24.20 27.15 29.52 37.00 1.750 32 56

5.91 6.92 7.93 8.93 10.92 13.90 16.86 19.83 22.78 25.15 32.64 1.750 64 112

8.89 9.38 10.37 11.35 12.34 13.32 14.31 16.28 19.24 22.19 25.14 28.09 30.46 37.94 1.760 25 44

7.64 8.13 9.12 10.11 11.09 12.08 13.06 15.04 18.00 20.95 23.91 26.86 29.22 36.70 1.765 34 60

9.83 10.33 11.31 12.30 13.28 14.26 15.25 17.22 20.17 23.13 26.08 29.03 31.40 38.88 1.778 18 32

7.33 7.82 8.82 9.80 10.79 11.78 12.76 14.74 17.70 20.65 23.61 26.56 28.93 36.41 1.778 36 64

6.05 6.55 7.55 8.54 9.53 10.52 11.51 13.49 16.45 19.41 22.37 25.32 27.69 35.17 1.778 45 80

8.44 8.93 9.92 10.90 11.89 12.87 13.86 15.83 18.79 21.74 24.70 27.65 30.01 37.50 1.786 28 50

9.69 10.18 11.16 12.15 13.13 14.11 15.10 17.07 20.03 22.98 25.93 28.88 31.25 38.73 1.789 19 34

7.03 7.52 8.51 9.50 10.49 11.47 12.46 14.44 17.40 20.35 23.31 26.26 28.63 36.11 1.789 38 68

9.54 10.03 11.01 12.00 12.98 13.97 14.95 16.92 19.88 22.83 25.78 28.73 31.10 38.58 1.800 20 36

8.84 9.33 10.32 11.30 12.29 13.27 14.26 16.23 19.18 22.14 25.09 28.04 30.41 37.89 1.800 25 45

6.72 7.21 8.21 9.20 10.19 11.17 12.16 14.14 17.10 20.05 23.01 25.96 28.33 35.81 1.800 40 72

5.27 5.77 6.77 7.77 8.77 9.76 10.75 12.73 15.70 18.66 21.62 24.57 26.94 34.43 1.800 50 90

9.39 9.88 10.86 11.85 12.84 13.82 14.80 16.77 19.73 22.68 25.64 28.59 30.95 38.43 1.810 21 38

9.24 9.73 10.71 11.70 12.69 13.67 14.65 16.62 19.58 22.53 25.49 28.44 30.80 38.28 1.818 22 40

6.10 6.60 7.59 8.59 9.58 10.57 11.56 13.54 16.50 19.45 22.41 25.37 27.73 35.22 1.818 44 80

8.94 9.43 10.41 11.40 12.39 13.37 14.35 16.33 19.28 22.23 25.19 28.14 30.51 37.99 1.833 24 44

8.64 9.13 10.11 11.10 12.09 13.07 14.06 16.03 18.99 21.94 24.89 27.84 30.21 37.69 1.846 26 48

8.33 8.83 9.81 10.80 11.79 12.77 13.76 15.73 18.69 21.64 24.60 27.55 29.91 37.40 1.857 28 52

8.03 8.52 9.51 10.50 11.49 12.47 13.46 15.43 18.39 21.34 24.30 27.25 29.62 37.10 1.867 30 56

6.08 7.10 8.10 9.10 11.10 14.08 17.05 20.01 22.97 25.34 32.83 1.867 60 112

8.88 9.38 10.36 11.35 12.34 13.32 14.30 16.28 19.23 22.18 25.14 28.09 30.46 37.94 1.875 24 45

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

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

*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.

The Driving Force in Power Transmission. Page 23

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

5MR-300

P.L 11.811

60 teeth

5MR-355

P.L 13.976

71 teeth

5MR-375

P.L 14.764

75 teeth

5MR-400

P.L 15.748

80 teeth

5MR-405

P.L 15.945

81 teeth

5MR-425

P.L 16.732

85 teeth

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

32 2.005 60 3.760 1.875 3.23 3.33 3.73 4.24 5.24 5.94 6.53 6.83 7.23

48 3.008 90 5.639 1.875 4.84

34 2.130 64 4.010 1.882 3.41 3.92 4.93 5.63 6.23 6.52 6.92

18 1.128 34 2.130 1.889 3.31 4.40 4.79 5.29 5.39 5.78 6.28 7.26 7.96 8.55 8.84 9.24

36 2.256 68 4.261 1.889 3.60 4.61 5.32 5.92 6.22 6.62

19 1.191 36 2.256 1.895 3.15 4.25 4.64 5.14 5.24 5.63 6.13 7.11 7.80 8.40 8.69 9.09

38 2.381 72 4.511 1.895 4.29 5.00 5.61 5.91 6.31

20 1.253 38 2.381 1.900 3.00 4.10 4.49 4.99 5.08 5.48 5.98 6.96 7.66 8.25 8.54 8.94

21 1.316 40 2.506 1.905 2.84 3.94 4.34 4.84 4.93 5.33 5.83 6.81 7.50 8.10 8.39 8.79

23 1.441 44 2.757 1.913 2.52 3.63 4.03 4.53 4.63 5.02 5.52 6.51 7.20 7.80 8.09 8.49

25 1.566 48 3.008 1.920 3.32 3.72 4.22 4.32 4.72 5.22 6.21 6.90 7.49 7.79 8.19

26 1.629 50 3.133 1.923 3.16 3.56 4.07 4.16 4.56 5.06 6.05 6.75 7.34 7.64 8.03

23 1.441 45 2.820 1.957 2.46 3.58 3.97 4.48 4.57 4.97 5.47 6.46 7.15 7.74 8.04 8.44

18 1.128 36 2.256 2.000 3.20 4.30 4.69 5.19 5.28 5.68 6.18 7.16 7.85 8.44 8.74 9.13

19 1.191 38 2.381 2.000 3.04 4.14 4.54 5.03 5.13 5.53 6.03 7.01 7.70 8.29 8.59 8.98

20 1.253 40 2.506 2.000 2.88 3.99 4.38 4.88 4.98 5.38 5.87 6.86 7.55 8.14 8.44 8.84

22 1.379 44 2.757 2.000 2.56 3.68 4.07 4.57 4.67 5.07 5.57 6.56 7.25 7.84 8.14 8.53

24 1.504 48 3.008 2.000 3.36 3.76 4.26 4.36 4.76 5.26 6.25 6.95 7.54 7.84 8.23

25 1.566 50 3.133 2.000 3.20 3.60 4.11 4.21 4.61 5.11 6.10 6.79 7.39 7.68 8.08

26 1.629 52 3.258 2.000 3.04 3.45 3.95 4.05 4.45 4.95 5.95 6.64 7.24 7.53 7.93

28 1.754 56 3.509 2.000 3.12 3.64 3.73 4.14 4.64 5.64 6.34 6.93 7.23 7.63

30 1.880 60 3.760 2.000 3.31 3.41 3.82 4.33 5.33 6.03 6.62 6.92 7.32

32 2.005 64 4.010 2.000 3.50 4.01 5.02 5.72 6.32 6.61 7.01

34 2.130 68 4.261 2.000 3.69 4.70 5.41 6.01 6.31 6.71

36 2.256 72 4.511 2.000 4.38 5.09 5.69 5.99 6.40

40 2.506 80 5.013 2.000 4.45 5.06 5.36 5.77

45 2.820 90 5.639 2.000 4.55 4.96

56 3.509 112 7.018 2.000

22 1.379 45 2.820 2.045 2.50 3.62 4.02 4.52 4.62 5.02 5.51 6.50 7.20 7.79 8.09 8.48

44 2.757 90 5.639 2.045 4.59 5.01

25 1.566 52 3.258 2.080 3.08 3.49 4.00 4.09 4.50 5.00 5.99 6.69 7.28 7.58 7.98

24 1.504 50 3.133 2.083 3.25 3.65 4.15 4.25 4.65 5.15 6.14 6.84 7.43 7.73 8.13

23 1.441 48 3.008 2.087 3.41 3.80 4.31 4.41 4.81 5.31 6.30 6.99 7.59 7.88 8.28

21 1.316 44 2.757 2.095 2.61 3.72 4.12 4.62 4.72 5.12 5.61 6.60 7.30 7.89 8.18 8.58

19 1.191 40 2.506 2.105 2.93 4.03 4.43 4.93 5.02 5.42 5.92 6.91 7.60 8.19 8.49 8.88

38 2.381 80 5.013 2.105 4.53 5.14 5.45 5.85

18 1.128 38 2.381 2.111 3.09 4.19 4.58 5.08 5.18 5.57 6.07 7.06 7.75 8.34 8.64 9.03

34 2.130 72 4.511 2.118 4.46 5.18 5.78 6.08 6.48

32 2.005 68 4.261 2.125 3.77 4.79 5.49 6.09 6.39 6.79

30 1.880 64 4.010 2.133 3.58 4.09 5.10 5.81 6.41 6.70 7.10

21 1.316 45 2.820 2.143 2.54 3.66 4.06 4.56 4.66 5.06 5.56 6.55 7.24 7.84 8.13 8.53

28 1.754 60 3.760 2.143 3.40 3.49 3.90 4.41 5.42 6.12 6.71 7.01 7.41

26 1.629 56 3.509 2.154 3.21 3.72 3.82 4.22 4.73 5.73 6.43 7.02 7.32 7.72

52 3.258 112 7.018 2.154

24 1.504 52 3.258 2.167 3.13 3.53 4.04 4.14 4.54 5.04 6.04 6.73 7.33 7.62 8.02

23 1.441 50 3.133 2.174 3.29 3.69 4.20 4.29 4.70 5.20 6.19 6.89 7.48 7.78 8.17

22 1.379 48 3.008 2.182 3.45 3.85 4.35 4.45 4.85 5.35 6.34 7.04 7.63 7.93 8.32

20 1.253 44 2.757 2.200 2.65 3.77 4.16 4.66 4.76 5.16 5.66 6.65 7.34 7.93 8.23 8.63

18 1.128 40 2.506 2.222 2.97 4.08 4.47 4.97 5.07 5.47 5.97 6.95 7.64 8.24 8.53 8.93

36 2.256 80 5.013 2.222 3.88 4.61 5.23 5.53 5.94

25 1.566 56 3.509 2.240 3.25 3.76 3.86 4.27 4.77 5.77 6.47 7.07 7.36 7.76

50 3.133 112 7.018 2.240

20 1.253 45 2.820 2.250 2.59 3.71 4.11 4.61 4.71 5.11 5.61 6.59 7.29 7.88 8.18 8.58

32 2.005 72 4.511 2.250 3.52 4.55 5.26 5.87 6.17 6.57

40 2.506 90 5.639 2.250 4.44 4.76 5.17

23 1.441 52 3.258 2.261 3.17 3.57 4.08 4.18 4.58 5.09 6.08 6.78 7.37 7.67 8.07

30 1.880 68 4.261 2.267 3.85 4.87 5.58 6.18 6.48 6.88

22 1.379 50 3.133 2.273 3.33 3.73 4.24 4.34 4.74 5.24 6.23 6.93 7.53 7.82 8.22

21 1.316 48 3.008 2.286 3.49 3.89 4.40 4.49 4.90 5.40 6.39 7.08 7.68 7.97 8.37

28 1.754 64 4.010 2.286 3.24 3.66 4.18 5.19 5.89 6.49 6.79 7.19

26 1.629 60 3.760 2.308 3.48 3.58 3.99 4.50 5.50 6.21 6.80 7.10 7.50

19 1.191 44 2.757 2.316 2.69 3.81 4.21 4.71 4.81 5.21 5.71 6.69 7.39 7.98 8.28 8.67

24 1.504 56 3.509 2.333 2.88 3.29 3.80 3.90 4.31 4.82 5.82 6.52 7.11 7.41 7.81

48 3.008 112 7.018 2.333

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 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 24 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

grooves No. of

grooves

7.73 8.22 9.21 10.20 11.19 12.17 13.16 15.13 18.09 21.04 24.00 26.95 29.32 36.80 1.875 32 60

5.35 5.86 6.86 7.86 8.86 9.85 10.84 12.83 15.79 18.75 21.71 24.67 27.04 34.52 1.875 48 90

7.42 7.92 8.91 9.90 10.89 11.87 12.86 14.83 17.79 20.75 23.70 26.66 29.02 36.51 1.882 34 64

9.73 10.22 11.21 12.20 13.18 14.16 15.15 17.12 20.07 23.03 25.98 28.93 31.30 38.78 1.889 18 34

7.12 7.61 8.60 9.59 10.58 11.57 12.56 14.53 17.49 20.45 23.41 26.36 28.72 36.21 1.889 36 68

9.58 10.07 11.06 12.05 13.03 14.01 15.00 16.97 19.93 22.88 25.83 28.78 31.15 38.63 1.895 19 36

6.81 7.30 8.30 9.29 10.28 11.27 12.26 14.23 17.19 20.15 23.11 26.06 28.43 35.91 1.895 38 72

9.43 9.92 10.91 11.90 12.88 13.86 14.85 16.82 19.78 22.73 25.68 28.64 31.00 38.48 1.900 20 38

9.28 9.78 10.76 11.75 12.73 13.72 14.70 16.67 19.63 22.58 25.54 28.49 30.85 38.33 1.905 21 40

8.98 9.48 10.46 11.45 12.44 13.42 14.40 16.37 19.33 22.28 25.24 28.19 30.56 38.04 1.913 23 44

8.68 9.17 10.16 11.15 12.14 13.12 14.10 16.08 19.03 21.99 24.94 27.89 30.26 37.74 1.920 25 48

8.53 9.02 10.01 11.00 11.99 12.97 13.95 15.93 18.88 21.84 24.79 27.74 30.11 37.59 1.923 26 50

8.93 9.42 10.41 11.40 12.38 13.37 14.35 16.32 19.28 22.23 25.19 28.14 30.51 37.99 1.957 23 45

9.63 10.12 11.11 12.09 13.08 14.06 15.05 17.02 19.97 22.93 25.88 28.83 31.20 38.68 2.000 18 36

9.48 9.97 10.96 11.94 12.93 13.91 14.90 16.87 19.83 22.78 25.73 28.68 31.05 38.53 2.000 19 38

9.33 9.82 10.81 11.80 12.78 13.76 14.75 16.72 19.68 22.63 25.59 28.54 30.90 38.38 2.000 20 40

9.03 9.52 10.51 11.50 12.48 13.46 14.45 16.42 19.38 22.33 25.29 28.24 30.60 38.09 2.000 22 44

8.73 9.22 10.21 11.20 12.18 13.16 14.15 16.12 19.08 22.03 24.99 27.94 30.31 37.79 2.000 24 48

8.58 9.07 10.06 11.05 12.03 13.02 14.00 15.98 18.93 21.89 24.84 27.79 30.16 37.64 2.000 25 50

8.43 8.92 9.91 10.90 11.88 12.87 13.85 15.83 18.78 21.74 24.69 27.64 30.01 37.49 2.000 26 52

8.12 8.62 9.61 10.60 11.58 12.57 13.55 15.53 18.49 21.44 24.40 27.35 29.71 37.20 2.000 28 56

7.82 8.31 9.30 10.29 11.28 12.26 13.25 15.23 18.19 21.14 24.10 27.05 29.42 36.90 2.000 30 60

7.51 8.01 9.00 9.99 10.98 11.96 12.95 14.93 17.89 20.84 23.80 26.75 29.12 36.60 2.000 32 64

7.21 7.70 8.70 9.69 10.68 11.66 12.65 14.63 17.59 20.54 23.50 26.45 28.82 36.30 2.000 34 68

6.90 7.39 8.39 9.38 10.37 11.36 12.35 14.33 17.29 20.24 23.20 26.16 28.52 36.01 2.000 36 72

6.27 6.77 7.77 8.77 9.76 10.75 11.74 13.72 16.69 19.64 22.60 25.56 27.93 35.41 2.000 40 80

5.48 5.98 6.99 8.00 9.00 9.99 10.98 12.96 15.93 18.89 21.86 24.81 27.18 34.67 2.000 45 90

6.25 7.27 8.28 9.28 11.28 14.26 17.23 20.20 23.16 25.53 33.03 2.000 56 112

8.98 9.47 10.46 11.44 12.43 13.41 14.40 16.37 19.33 22.28 25.24 28.19 30.55 38.04 2.045 22 45

5.52 6.03 7.04 8.04 9.04 10.03 11.03 13.01 15.98 18.94 21.90 24.86 27.23 34.72 2.045 44 90

8.47 8.97 9.96 10.94 11.93 12.91 13.90 15.87 18.83 21.78 24.74 27.69 30.06 37.54 2.080 25 52

8.62 9.12 10.11 11.09 12.08 13.06 14.05 16.02 18.98 21.93 24.89 27.84 30.21 37.69 2.083 24 50

8.78 9.27 10.26 11.24 12.23 13.21 14.20 16.17 19.13 22.08 25.04 27.99 30.36 37.84 2.087 23 48

9.08 9.57 10.56 11.54 12.53 13.51 14.50 16.47 19.43 22.38 25.34 28.29 30.65 38.13 2.095 21 44

9.38 9.87 10.86 11.84 12.83 13.81 14.80 16.77 19.73 22.68 25.63 28.58 30.95 38.43 2.105 19 40

6.36 6.86 7.86 8.86 9.85 10.84 11.83 13.82 16.78 19.74 22.70 25.65 28.02 35.51 2.105 38 80

9.53 10.02 11.01 11.99 12.98 13.96 14.95 16.92 19.87 22.83 25.78 28.73 31.10 38.58 2.111 18 38

6.99 7.48 8.48 9.47 10.47 11.45 12.44 14.42 17.38 20.34 23.30 26.25 28.62 36.10 2.118 34 72

7.30 7.79 8.79 9.78 10.77 11.75 12.74 14.72 17.68 20.64 23.60 26.55 28.92 36.40 2.125 32 68

7.60 8.10 9.09 10.08 11.07 12.06 13.05 15.02 17.98 20.94 23.90 26.85 29.21 36.70 2.133 30 64

9.03 9.52 10.50 11.49 12.48 13.46 14.45 16.42 19.38 22.33 25.29 28.24 30.60 38.08 2.143 21 45

7.91 8.40 9.40 10.39 11.38 12.36 13.35 15.32 18.28 21.24 24.19 27.15 29.51 37.00 2.143 28 60

8.22 8.71 9.70 10.69 11.68 12.66 13.65 15.62 18.58 21.53 24.49 27.44 29.81 37.29 2.154 26 56

5.38 6.42 7.44 8.45 9.46 11.46 14.45 17.42 20.39 23.35 25.72 33.22 2.154 52 112

8.52 9.01 10.00 10.99 11.98 12.96 13.95 15.92 18.88 21.83 24.79 27.74 30.11 37.59 2.167 24 52

8.67 9.16 10.15 11.14 12.13 13.11 14.10 16.07 19.03 21.98 24.94 27.89 30.26 37.74 2.174 23 50

8.82 9.31 10.30 11.29 12.28 13.26 14.25 16.22 19.18 22.13 25.09 28.04 30.40 37.89 2.182 22 48

9.12 9.62 10.60 11.59 12.58 13.56 14.55 16.52 19.48 22.43 25.38 28.34 30.70 38.18 2.200 20 44

9.43 9.92 10.90 11.89 12.88 13.86 14.84 16.82 19.77 22.73 25.68 28.63 31.00 38.48 2.222 18 40

6.45 6.95 7.95 8.95 9.95 10.93 11.93 13.91 16.87 19.83 22.79 25.75 28.12 35.60 2.222 36 80

8.26 8.76 9.75 10.74 11.72 12.71 13.69 15.67 18.63 21.58 24.54 27.49 29.86 37.34 2.240 25 56

5.46 6.50 7.53 8.54 9.54 11.55 14.54 17.51 20.48 23.44 25.81 33.31 2.240 50 112

9.07 9.56 10.55 11.54 12.53 13.51 14.49 16.47 19.43 22.38 25.33 28.29 30.65 38.13 2.250 20 45

7.08 7.57 8.57 9.57 10.56 11.54 12.53 14.51 17.48 20.43 23.39 26.35 28.72 36.20 2.250 32 72

5.69 6.20 7.21 8.22 9.22 10.21 11.21 13.19 16.17 19.13 22.09 25.05 27.42 34.91 2.250 40 90

8.57 9.06 10.05 11.04 12.03 13.01 13.99 15.97 18.93 21.88 24.84 27.79 30.16 37.64 2.261 23 52

7.39 7.88 8.88 9.87 10.86 11.85 12.84 14.81 17.78 20.73 23.69 26.65 29.01 36.50 2.267 30 68

8.72 9.21 10.20 11.19 12.17 13.16 14.14 16.12 19.08 22.03 24.99 27.94 30.30 37.79 2.273 22 50

8.87 9.36 10.35 11.34 12.32 13.31 14.29 16.27 19.23 22.18 25.13 28.09 30.45 37.93 2.286 21 48

7.70 8.19 9.18 10.18 11.17 12.15 13.14 15.12 18.08 21.03 23.99 26.94 29.31 36.80 2.286 28 64

8.00 8.50 9.49 10.48 11.47 12.45 13.44 15.42 18.38 21.33 24.29 27.24 29.61 37.09 2.308 26 60

9.17 9.66 10.65 11.64 12.62 13.61 14.59 16.57 19.52 22.48 25.43 28.38 30.75 38.23 2.316 19 44

8.31 8.80 9.79 10.78 11.77 12.75 13.74 15.72 18.68 21.63 24.59 27.54 29.91 37.39 2.333 24 56

5.54 6.58 7.61 8.62 9.63 11.64 14.63 17.60 20.57 23.54 25.91 33.41 2.333 48 112

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

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

*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.

The Driving Force in Power Transmission. Page 25

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

5MR-300

P.L 11.811

60 teeth

5MR-355

P.L 13.976

71 teeth

5MR-375

P.L 14.764

75 teeth

5MR-400

P.L 15.748

80 teeth

5MR-405

P.L 15.945

81 teeth

5MR-425

P.L 16.732

85 teeth

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

34 2.130 80 5.013 2.353 3.96 4.70 5.31 5.62 6.03

22 1.379 52 3.258 2.364 3.21 3.62 4.13 4.22 4.63 5.13 6.13 6.82 7.42 7.72 8.11

19 1.191 45 2.820 2.368 2.63 3.75 4.15 4.65 4.75 5.15 5.65 6.64 7.33 7.93 8.22 8.62

38 2.381 90 5.639 2.368 4.52 4.84 5.26

21 1.316 50 3.133 2.381 3.37 3.78 4.28 4.38 4.78 5.29 6.28 6.98 7.57 7.87 8.27

20 1.253 48 3.008 2.400 3.53 3.94 4.44 4.54 4.94 5.44 6.43 7.13 7.72 8.02 8.42

25 1.566 60 3.760 2.400 2.99 3.52 3.62 4.03 4.54 5.55 6.25 6.85 7.15 7.55

30 1.880 72 4.511 2.400 3.60 4.63 5.35 5.95 6.26 6.66

28 1.754 68 4.261 2.429 3.41 3.93 4.96 5.67 6.27 6.57 6.97

23 1.441 56 3.509 2.435 2.92 3.33 3.85 3.95 4.35 4.86 5.86 6.56 7.16 7.46 7.85

18 1.128 44 2.757 2.444 2.73 3.85 4.25 4.75 4.85 5.25 5.75 6.74 7.43 8.03 8.32 8.72

26 1.629 64 4.010 2.462 3.22 3.33 3.75 4.26 5.28 5.98 6.58 6.88 7.28

21 1.316 52 3.258 2.476 3.25 3.66 4.17 4.27 4.67 5.18 6.17 6.87 7.46 7.76 8.16

45 2.820 112 7.018 2.489

18 1.128 45 2.820 2.500 2.67 3.79 4.19 4.70 4.79 5.20 5.70 6.69 7.38 7.97 8.27 8.67

20 1.253 50 3.133 2.500 3.42 3.82 4.33 4.43 4.83 5.33 6.33 7.02 7.62 7.91 8.31

24 1.504 60 3.760 2.500 3.03 3.56 3.66 4.07 4.59 5.59 6.29 6.89 7.19 7.59

32 2.005 80 5.013 2.500 4.05 4.78 5.40 5.70 6.11

36 2.256 90 5.639 2.500 4.60 4.92 5.34

19 1.191 48 3.008 2.526 2.44 3.58 3.98 4.48 4.58 4.98 5.49 6.48 7.17 7.77 8.07 8.46

22 1.379 56 3.509 2.545 2.96 3.37 3.89 3.99 4.40 4.90 5.90 6.60 7.20 7.50 7.90

44 2.757 112 7.018 2.545

25 1.566 64 4.010 2.560 3.26 3.37 3.79 4.31 5.32 6.03 6.63 6.93 7.33

28 1.754 72 4.511 2.571 3.68 4.72 5.43 6.04 6.34 6.75

20 1.253 52 3.258 2.600 3.29 3.70 4.21 4.31 4.72 5.22 6.22 6.91 7.51 7.81 8.21

23 1.441 60 3.760 2.609 3.07 3.60 3.70 4.12 4.63 5.64 6.34 6.94 7.24 7.64

26 1.629 68 4.261 2.615 3.49 4.02 5.04 5.75 6.36 6.66 7.06

19 1.191 50 3.133 2.632 3.46 3.86 4.37 4.47 4.87 5.38 6.37 7.07 7.66 7.96 8.36

34 2.130 90 5.639 2.647 4.69 5.00 5.42

18 1.128 48 3.008 2.667 2.48 3.62 4.02 4.53 4.63 5.03 5.53 6.52 7.22 7.81 8.11 8.51

21 1.316 56 3.509 2.667 3.00 3.41 3.93 4.03 4.44 4.95 5.95 6.65 7.25 7.55 7.94

24 1.504 64 4.010 2.667 3.30 3.41 3.83 4.35 5.36 6.07 6.67 6.97 7.37

30 1.880 80 5.013 2.667 4.13 4.86 5.48 5.79 6.20

25 1.566 68 4.261 2.720 3.53 4.06 5.08 5.80 6.40 6.70 7.11

22 1.379 60 3.760 2.727 3.11 3.64 3.74 4.16 4.67 5.68 6.38 6.98 7.28 7.68

19 1.191 52 3.258 2.737 3.33 3.74 4.25 4.35 4.76 5.26 6.26 6.96 7.55 7.85 8.25

26 1.629 72 4.511 2.769 3.76 4.80 5.52 6.13 6.43 6.84

18 1.128 50 3.133 2.778 3.50 3.90 4.41 4.51 4.92 5.42 6.41 7.11 7.71 8.01 8.40

23 1.441 64 4.010 2.783 3.34 3.45 3.87 4.39 5.41 6.11 6.72 7.02 7.42

20 1.253 56 3.509 2.800 3.04 3.45 3.97 4.07 4.48 4.99 5.99 6.69 7.29 7.59 7.99

40 2.506 112 7.018 2.800

32 2.005 90 5.639 2.813 4.12 4.77 5.08 5.50

24 1.504 68 4.261 2.833 3.57 4.10 5.13 5.84 6.44 6.75 7.15

21 1.316 60 3.760 2.857 3.15 3.68 3.78 4.20 4.71 5.72 6.43 7.03 7.33 7.73

28 1.754 80 5.013 2.857 4.21 4.94 5.56 5.87 6.28

25 1.566 72 4.511 2.880 3.25 3.80 4.84 5.56 6.17 6.47 6.88

18 1.128 52 3.258 2.889 3.38 3.78 4.30 4.40 4.80 5.31 6.31 7.00 7.60 7.90 8.30

22 1.379 64 4.010 2.909 3.38 3.49 3.91 4.43 5.45 6.16 6.76 7.06 7.46

19 1.191 56 3.509 2.947 3.08 3.49 4.02 4.11 4.52 5.03 6.04 6.74 7.34 7.64 8.03

38 2.381 112 7.018 2.947

23 1.441 68 4.261 2.957 3.17 3.61 4.14 5.17 5.88 6.49 6.79 7.19

20 1.253 60 3.760 3.000 3.19 3.72 3.83 4.24 4.76 5.77 6.47 7.07 7.37 7.77

24 1.504 72 4.511 3.000 3.29 3.84 4.88 5.60 6.21 6.52 6.92

30 1.880 90 5.639 3.000 4.20 4.85 5.16 5.59

21 1.316 64 4.010 3.048 3.42 3.53 3.95 4.47 5.49 6.20 6.80 7.10 7.51

26 1.629 80 5.013 3.077 4.28 5.03 5.65 5.96 6.37

22 1.379 68 4.261 3.091 3.21 3.65 4.18 5.21 5.92 6.53 6.83 7.24

18 1.128 56 3.509 3.111 3.12 3.54 4.06 4.16 4.57 5.08 6.08 6.78 7.38 7.68 8.08

36 2.256 112 7.018 3.111

23 1.441 72 4.511 3.130 3.33 3.88 4.92 5.65 6.26 6.56 6.97

19 1.191 60 3.760 3.158 2.80 3.23 3.77 3.87 4.28 4.80 5.81 6.51 7.12 7.41 7.82

20 1.253 64 4.010 3.200 3.46 3.57 3.99 4.51 5.53 6.24 6.85 7.15 7.55

25 1.566 80 5.013 3.200 4.32 5.07 5.69 6.00 6.41

28 1.754 90 5.639 3.214 4.27 4.93 5.24 5.67

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 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 26 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

grooves No. of

grooves

6.54 7.04 8.04 9.04 10.04 11.03 12.02 14.00 16.97 19.93 22.89 25.84 28.21 35.70 2.353 34 80

8.61 9.10 10.09 11.08 12.07 13.05 14.04 16.02 18.97 21.93 24.89 27.84 30.20 37.69 2.364 22 52

9.12 9.61 10.60 11.59 12.57 13.56 14.54 16.51 19.47 22.42 25.38 28.33 30.70 38.18 2.368 19 45

5.77 6.28 7.30 8.31 9.31 10.30 11.30 13.29 16.26 19.22 22.19 25.14 27.51 35.00 2.368 38 90

8.76 9.26 10.25 11.23 12.22 13.20 14.19 16.17 19.12 22.08 25.03 27.99 30.35 37.83 2.381 21 50

8.92 9.41 10.40 11.38 12.37 13.35 14.34 16.31 19.27 22.23 25.18 28.13 30.50 37.98 2.400 20 48

8.05 8.54 9.53 10.52 11.51 12.50 13.49 15.46 18.42 21.38 24.34 27.29 29.66 37.14 2.400 25 60

7.16 7.66 8.66 9.66 10.65 11.64 12.63 14.61 17.57 20.53 23.49 26.44 28.81 36.30 2.400 30 72

7.48 7.97 8.97 9.96 10.95 11.94 12.93 14.91 17.87 20.83 23.79 26.74 29.11 36.59 2.429 28 68

8.35 8.85 9.84 10.83 11.82 12.80 13.79 15.76 18.72 21.68 24.64 27.59 29.95 37.44 2.435 23 56

9.22 9.71 10.70 11.69 12.67 13.65 14.64 16.61 19.57 22.52 25.48 28.43 30.80 38.28 2.444 18 44

7.78 8.28 9.27 10.27 11.26 12.24 13.23 15.21 18.17 21.13 24.09 27.04 29.41 36.89 2.462 26 64

8.66 9.15 10.14 11.13 12.12 13.10 14.09 16.06 19.02 21.98 24.93 27.89 30.25 37.74 2.476 21 52

5.66 6.71 7.74 8.75 9.76 11.77 14.76 17.74 20.71 23.68 26.05 33.55 2.489 45 112

9.17 9.66 10.65 11.63 12.62 13.60 14.59 16.56 19.52 22.47 25.43 28.38 30.75 38.23 2.500 18 45

8.81 9.30 10.29 11.28 12.27 13.25 14.24 16.21 19.17 22.13 25.08 28.03 30.40 37.88 2.500 20 50

8.09 8.59 9.58 10.57 11.56 12.54 13.53 15.51 18.47 21.43 24.38 27.34 29.70 37.19 2.500 24 60

6.62 7.12 8.13 9.13 10.13 11.12 12.11 14.09 17.06 20.02 22.98 25.94 28.31 35.80 2.500 32 80

5.86 6.37 7.38 8.39 9.40 10.39 11.39 13.38 16.35 19.32 22.28 25.24 27.61 35.10 2.500 36 90

8.96 9.45 10.44 11.43 12.42 13.40 14.39 16.36 19.32 22.27 25.23 28.18 30.55 38.03 2.526 19 48

8.40 8.89 9.88 10.87 11.86 12.85 13.83 15.81 18.77 21.72 24.68 27.64 30.00 37.49 2.545 22 56

5.70 6.75 7.78 8.79 9.81 11.82 14.81 17.78 20.76 23.72 26.10 33.60 2.545 44 112

7.83 8.33 9.32 10.31 11.30 12.29 13.28 15.26 18.22 21.18 24.13 27.09 29.46 36.94 2.560 25 64

7.25 7.75 8.75 9.75 10.74 11.73 12.72 14.70 17.67 20.62 23.58 26.54 28.91 36.39 2.571 28 72

8.70 9.20 10.19 11.18 12.17 13.15 14.14 16.11 19.07 22.02 24.98 27.93 30.30 37.78 2.600 20 52

8.14 8.63 9.63 10.62 11.61 12.59 13.58 15.56 18.52 21.47 24.43 27.39 29.75 37.24 2.609 23 60

7.56 8.06 9.06 10.05 11.05 12.03 13.02 15.00 17.97 20.92 23.88 26.84 29.20 36.69 2.615 26 68

8.86 9.35 10.34 11.33 12.32 13.30 14.29 16.26 19.22 22.17 25.13 28.08 30.45 37.93 2.632 19 50

5.94 6.45 7.47 8.48 9.49 10.48 11.48 13.47 16.44 19.41 22.37 25.33 27.70 35.19 2.647 34 90

9.01 9.50 10.49 11.48 12.47 13.45 14.44 16.41 19.37 22.32 25.28 28.23 30.60 38.08 2.667 18 48

8.44 8.94 9.93 10.92 11.91 12.89 13.88 15.86 18.82 21.77 24.73 27.68 30.05 37.53 2.667 21 56

7.87 8.37 9.37 10.36 11.35 12.34 13.33 15.30 18.27 21.22 24.18 27.14 29.50 36.99 2.667 24 64

6.71 7.21 8.22 9.22 10.22 11.21 12.20 14.18 17.15 20.12 23.08 26.03 28.40 35.89 2.667 30 80

7.61 8.11 9.10 10.10 11.09 12.08 13.07 15.05 18.01 20.97 23.93 26.88 29.25 36.74 2.720 25 68

8.18 8.68 9.67 10.66 11.65 12.64 13.63 15.60 18.57 21.52 24.48 27.43 29.80 37.28 2.727 22 60

8.75 9.24 10.23 11.22 12.21 13.20 14.18 16.16 19.12 22.07 25.03 27.98 30.35 37.83 2.737 19 52

7.34 7.84 8.84 9.84 10.83 11.82 12.81 14.79 17.76 20.72 23.68 26.63 29.00 36.49 2.769 26 72

8.90 9.39 10.38 11.37 12.36 13.35 14.33 16.31 19.27 22.22 25.18 28.13 30.50 37.98 2.778 18 50

7.92 8.42 9.41 10.40 11.40 12.38 13.37 15.35 18.31 21.27 24.23 27.18 29.55 37.04 2.783 23 64

8.49 8.98 9.98 10.97 11.96 12.94 13.93 15.90 18.87 21.82 24.78 27.73 30.10 37.58 2.800 20 56

5.86 6.91 7.95 8.96 9.98 11.99 14.99 17.97 20.94 23.91 26.28 33.78 2.800 40 112

6.03 6.54 7.56 8.57 9.57 10.57 11.57 13.56 16.54 19.50 22.47 25.43 27.80 35.29 2.813 32 90

7.65 8.15 9.15 10.14 11.14 12.12 13.11 15.09 18.06 21.02 23.98 26.93 29.30 36.79 2.833 24 68

8.23 8.72 9.72 10.71 11.70 12.68 13.67 15.65 18.61 21.57 24.53 27.48 29.85 37.33 2.857 21 60

6.79 7.30 8.30 9.31 10.31 11.30 12.29 14.28 17.25 20.21 23.17 26.13 28.50 35.99 2.857 28 80

7.38 7.88 8.88 9.88 10.88 11.87 12.86 14.84 17.81 20.76 23.73 26.68 29.05 36.54 2.880 25 72

8.80 9.29 10.28 11.27 12.26 13.24 14.23 16.21 19.17 22.12 25.08 28.03 30.40 37.88 2.889 18 52

7.96 8.46 9.46 10.45 11.44 12.43 13.42 15.40 18.36 21.32 24.28 27.23 29.60 37.08 2.909 22 64

8.53 9.03 10.02 11.01 12.00 12.99 13.98 15.95 18.91 21.87 24.83 27.78 30.15 37.63 2.947 19 56

5.94 7.00 8.03 9.05 10.06 12.08 15.08 18.06 21.04 24.00 26.38 33.88 2.947 38 112

7.70 8.20 9.19 10.19 11.18 12.17 13.16 15.14 18.11 21.06 24.03 26.98 29.35 36.83 2.957 23 68

8.27 8.77 9.76 10.75 11.75 12.73 13.72 15.70 18.66 21.62 24.58 27.53 29.90 37.38 3.000 20 60

7.43 7.93 8.93 9.93 10.92 11.91 12.90 14.88 17.85 20.81 23.77 26.73 29.10 36.58 3.000 24 72

6.11 6.62 7.64 8.65 9.66 10.66 11.66 13.65 16.63 19.59 22.56 25.52 27.89 35.38 3.000 30 90

8.01 8.51 9.50 10.50 11.49 12.47 13.46 15.44 18.41 21.36 24.32 27.28 29.65 37.13 3.048 21 64

6.88 7.38 8.39 9.40 10.40 11.39 12.38 14.37 17.34 20.30 23.27 26.22 28.59 36.08 3.077 26 80

7.74 8.24 9.24 10.23 11.23 12.22 13.21 15.19 18.15 21.11 24.07 27.03 29.40 36.88 3.091 22 68

8.58 9.07 10.07 11.06 12.05 13.03 14.02 16.00 18.96 21.92 24.87 27.83 30.19 37.68 3.111 18 56

4.92 6.02 7.08 8.11 9.13 10.15 12.17 15.17 18.15 21.13 24.09 26.47 33.97 3.111 36 112

7.47 7.97 8.97 9.97 10.97 11.96 12.95 14.93 17.90 20.86 23.82 26.78 29.14 36.63 3.130 23 72

8.32 8.81 9.81 10.80 11.79 12.78 13.77 15.74 18.71 21.66 24.62 27.58 29.94 37.43 3.158 19 60

8.05 8.55 9.55 10.54 11.53 12.52 13.51 15.49 18.45 21.41 24.37 27.33 29.69 37.18 3.200 20 64

6.92 7.43 8.44 9.44 10.44 11.43 12.43 14.41 17.39 20.35 23.31 26.27 28.64 36.13 3.200 25 80

6.19 6.71 7.73 8.74 9.75 10.75 11.75 13.74 16.72 19.69 22.66 25.61 27.99 35.48 3.214 28 90

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

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

*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.

The Driving Force in Power Transmission. Page 27

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

5MR-300

P.L 11.811

60 teeth

5MR-355

P.L 13.976

71 teeth

5MR-375

P.L 14.764

75 teeth

5MR-400

P.L 15.748

80 teeth

5MR-405

P.L 15.945

81 teeth

5MR-425

P.L 16.732

85 teeth

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

21 1.316 68 4.261 3.238 3.14 3.25 3.69 4.22 5.25 5.97 6.57 6.88 7.28

22 1.379 72 4.511 3.273 3.37 3.92 4.96 5.69 6.30 6.60 7.01

34 2.130 112 7.018 3.294

18 1.128 60 3.760 3.333 2.84 3.27 3.81 3.91 4.32 4.84 5.85 6.56 7.16 7.46 7.86

24 1.504 80 5.013 3.333 4.36 5.11 5.73 6.04 6.45

19 1.191 64 4.010 3.368 2.95 3.50 3.61 4.03 4.56 5.58 6.29 6.89 7.19 7.59

20 1.253 68 4.261 3.400 3.18 3.29 3.73 4.26 5.29 6.01 6.62 6.92 7.32

21 1.316 72 4.511 3.429 3.41 3.96 5.01 5.73 6.34 6.65 7.05

26 1.629 90 5.639 3.462 4.35 5.00 5.32 5.75

23 1.441 80 5.013 3.478 4.40 5.15 5.77 6.08 6.49

32 2.005 112 7.018 3.500

18 1.128 64 4.010 3.556 2.99 3.54 3.65 4.07 4.60 5.62 6.33 6.93 7.24 7.64

19 1.191 68 4.261 3.579 3.22 3.33 3.77 4.30 5.34 6.05 6.66 6.96 7.37

20 1.253 72 4.511 3.600 3.45 4.00 5.05 5.77 6.38 6.69 7.10

25 1.566 90 5.639 3.600 4.39 5.04 5.36 5.79

22 1.379 80 5.013 3.636 4.44 5.19 5.81 6.12 6.54

30 1.880 112 7.018 3.733

24 1.504 90 5.639 3.750 4.43 5.08 5.40 5.83

18 1.128 68 4.261 3.778 3.26 3.37 3.81 4.34 5.38 6.10 6.70 7.01 7.41

19 1.191 72 4.511 3.789 3.02 3.48 4.04 5.09 5.81 6.43 6.73 7.14

21 1.316 80 5.013 3.810 3.37 4.48 5.23 5.85 6.16 6.58

23 1.441 90 5.639 3.913 4.47 5.12 5.44 5.87

18 1.128 72 4.511 4.000 3.06 3.52 4.07 5.13 5.86 6.47 6.77 7.18

20 1.253 80 5.013 4.000 3.41 4.52 5.27 5.90 6.21 6.62

28 1.754 112 7.018 4.000

22 1.379 90 5.639 4.091 3.70 4.50 5.16 5.48 5.91

19 1.191 80 5.013 4.211 3.44 4.56 5.31 5.94 6.25 6.66

21 1.316 90 5.639 4.286 3.73 4.54 5.20 5.52 5.95

26 1.629 112 7.018 4.308

18 1.128 80 5.013 4.444 3.48 4.60 5.35 5.98 6.29 6.70

25 1.566 112 7.018 4.480

20 1.253 90 5.639 4.500 3.77 4.58 5.24 5.56 5.99

24 1.504 112 7.018 4.667

19 1.191 90 5.639 4.737 3.81 4.62 5.28 5.60 6.03

23 1.441 112 7.018 4.870

18 1.128 90 5.639 5.000 3.84 4.66 5.32 5.64 6.07

22 1.379 112 7.018 5.091

21 1.316 112 7.018 5.333

20 1.253 112 7.018 5.600 4.31

19 1.191 112 7.018 5.895 4.34

18 1.128 112 7.018 6.222 4.38

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 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 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

grooves No. of

grooves

7.79 8.28 9.28 10.28 11.27 12.26 13.25 15.23 18.20 21.16 24.12 27.07 29.44 36.93 3.238 21 68

7.52 8.02 9.02 10.02 11.01 12.00 12.99 14.98 17.95 20.91 23.87 26.82 29.19 36.68 3.273 22 72

5.00 6.10 7.16 8.20 9.22 10.24 12.26 15.26 18.24 21.22 24.19 26.56 34.07 3.294 34 112

8.36 8.86 9.85 10.85 11.84 12.82 13.81 15.79 18.75 21.71 24.67 27.62 29.99 37.48 3.333 18 60

6.96 7.47 8.48 9.48 10.48 11.48 12.47 14.46 17.43 20.40 23.36 26.32 28.69 36.18 3.333 24 80

8.10 8.59 9.59 10.59 11.58 12.57 13.56 15.54 18.50 21.46 24.42 27.37 29.74 37.23 3.368 19 64

7.83 8.33 9.33 10.32 11.32 12.31 13.30 15.28 18.25 21.21 24.17 27.12 29.49 36.98 3.400 20 68

7.56 8.06 9.06 10.06 11.06 12.05 13.04 15.02 17.99 20.95 23.92 26.87 29.24 36.73 3.429 21 72

6.27 6.79 7.81 8.83 9.84 10.84 11.84 13.83 16.81 19.78 22.75 25.71 28.08 35.58 3.462 26 90

7.01 7.51 8.52 9.53 10.53 11.52 12.52 14.51 17.48 20.44 23.41 26.37 28.74 36.23 3.478 23 80

5.08 6.18 7.24 8.28 9.30 10.32 12.34 15.35 18.33 21.31 24.28 26.66 34.16 3.500 32 112

8.14 8.64 9.64 10.63 11.63 12.61 13.60 15.58 18.55 21.51 24.47 27.42 29.79 37.28 3.556 18 64

7.87 8.37 9.37 10.37 11.36 12.35 13.34 15.33 18.29 21.25 24.21 27.17 29.54 37.03 3.579 19 68

7.60 8.10 9.11 10.11 11.10 12.09 13.09 15.07 18.04 21.00 23.96 26.92 29.29 36.78 3.600 20 72

6.31 6.83 7.86 8.87 9.88 10.88 11.88 13.88 16.86 19.83 22.80 25.76 28.13 35.62 3.600 25 90

7.05 7.56 8.57 9.57 10.57 11.57 12.56 14.55 17.53 20.49 23.45 26.41 28.78 36.27 3.636 22 80

5.15 6.26 7.32 8.36 9.39 10.41 12.43 15.44 18.42 21.40 24.37 26.75 34.26 3.733 30 112

6.36 6.87 7.90 8.91 9.92 10.92 11.93 13.92 16.90 19.87 22.84 25.80 28.17 35.67 3.750 24 90

7.92 8.42 9.42 10.41 11.41 12.40 13.39 15.37 18.34 21.30 24.26 27.22 29.59 37.07 3.778 18 68

7.65 8.15 9.15 10.15 11.15 12.14 13.13 15.12 18.09 21.05 24.01 26.97 29.33 36.82 3.789 19 72

7.09 7.60 8.61 9.62 10.62 11.61 12.61 14.60 17.57 20.54 23.50 26.46 28.83 36.32 3.810 21 80

6.40 6.91 7.94 8.96 9.97 10.97 11.97 13.97 16.95 19.92 22.89 25.85 28.22 35.72 3.913 23 90

7.69 8.19 9.20 10.20 11.19 12.18 13.18 15.16 18.13 21.09 24.06 27.01 29.38 36.87 4.000 18 72

7.13 7.64 8.65 9.66 10.66 11.66 12.65 14.64 17.62 20.58 23.55 26.51 28.88 36.37 4.000 20 80

4.65 5.23 6.34 7.40 8.45 9.47 10.49 12.52 15.53 18.51 21.49 24.46 26.84 34.35 4.000 28 112

6.44 6.95 7.98 9.00 10.01 11.01 12.01 14.01 16.99 19.96 22.93 25.90 28.27 35.76 4.091 22 90

7.18 7.68 8.70 9.70 10.71 11.70 12.70 14.69 17.66 20.63 23.59 26.55 28.92 36.42 4.211 19 80

6.48 7.00 8.02 9.04 10.05 11.06 12.06 14.06 17.04 20.01 22.98 25.94 28.32 35.81 4.286 21 90

4.72 5.30 6.41 7.48 8.53 9.56 10.58 12.60 15.62 18.60 21.59 24.56 26.93 34.44 4.308 26 112

7.22 7.73 8.74 9.75 10.75 11.75 12.74 14.73 17.71 20.68 23.64 26.60 28.97 36.47 4.444 18 80

4.76 5.34 6.45 7.52 8.57 9.60 10.62 12.65 15.66 18.65 21.63 24.60 26.98 34.49 4.480 25 112

6.52 7.04 8.07 9.09 10.10 11.10 12.10 14.10 17.09 20.06 23.03 25.99 28.36 35.86 4.500 20 90

4.79 5.38 6.49 7.56 8.61 9.64 10.66 12.69 15.70 18.69 21.68 24.65 27.03 34.54 4.667 24 112

6.56 7.08 8.11 9.13 10.14 11.14 12.15 14.15 17.13 20.10 23.07 26.04 28.41 35.91 4.737 19 90

4.83 5.42 6.53 7.60 8.65 9.68 10.71 12.73 15.75 18.74 21.72 24.69 27.07 34.58 4.870 23 112

6.60 7.12 8.15 9.17 10.18 11.19 12.19 14.19 17.18 20.15 23.12 26.08 28.46 35.95 5.000 18 90

4.87 5.45 6.57 7.64 8.69 9.72 10.75 12.78 15.79 18.78 21.77 24.74 27.12 34.63 5.091 22 112

4.90 5.49 6.61 7.68 8.73 9.77 10.79 12.82 15.84 18.83 21.81 24.79 27.16 34.68 5.333 21 112

4.94 5.53 6.65 7.72 8.78 9.81 10.83 12.86 15.88 18.87 21.86 24.83 27.21 34.72 5.600 20 112

4.98 5.57 6.69 7.76 8.82 9.85 10.88 12.91 15.93 18.92 21.90 24.88 27.26 34.77 5.895 19 112

5.01 5.60 6.73 7.80 8.86 9.89 10.92 12.95 15.97 18.96 21.95 24.92 27.30 34.82 6.222 18 112

5mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

The Driving Force in Power Transmission. Page 29

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

*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.

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

384-8MGT

P.L 15.118

48 teeth

480-8MGT

P.L 18.898

60 teeth

560-8MGT

P.L 22.047

70 teeth

600-8MGT

P.L 23.622

75 teeth

640-8MGT

P.L 25.197

80 teeth

720-8MGT

P.L 28.346

90 teeth

800-8MGT

P.L 31.496

100 teeth

840-8MGT

P.L 33.071

105 teeth

880-8MGT

P.L 34.646

110 teeth

920-8MGT

P.L 36.220

115 teeth

960-8MGT

P.L 37.795

120 teeth

1040-8MGT

P.L 40.945

130 teeth

1064-8MGT

P.L 41.890

133 teeth

1120-8MGT

P.L 44.094

140 teeth

1160-8MGT

P.L 45.669

145 teeth

22 2.206 22 2.206 1.000 4.09 5.98 7.56 8.34 9.13 10.71 12.28 13.07 13.86 14.64 15.43 17.00 17.48 18.58 19.37

24 2.406 24 2.406 1.000 3.78 5.67 7.25 8.03 8.82 10.40 11.97 12.76 13.55 14.33 15.12 16.69 17.17 18.27 19.06

26 2.607 26 2.607 1.000 3.46 5.35 6.93 7.71 8.50 10.08 11.65 12.44 13.23 14.01 14.80 16.37 16.85 17.95 18.74

28 2.807 28 2.807 1.000 5.04 6.62 7.40 8.19 9.77 11.34 12.13 12.92 13.70 14.49 16.06 16.54 17.64 18.43

30 3.008 30 3.008 1.000 4.73 6.30 7.09 7.88 9.45 11.03 11.81 12.60 13.39 14.18 15.75 16.22 17.32 18.11

32 3.208 32 3.208 1.000 4.41 5.99 6.77 7.56 9.14 10.71 11.50 12.29 13.07 13.86 15.43 15.91 17.01 17.80

34 3.409 34 3.409 1.000 4.10 5.67 6.46 7.25 8.82 10.40 11.18 11.97 12.76 13.55 15.12 15.59 16.69 17.48

36 3.609 36 3.609 1.000 5.36 6.14 6.93 8.51 10.08 10.87 11.66 12.44 13.23 14.80 15.28 16.38 17.17

38 3.810 38 3.810 1.000 5.04 5.83 6.62 8.19 9.77 10.55 11.34 12.13 12.92 14.49 14.96 16.06 16.85

40 4.010 40 4.010 1.000 4.73 5.51 6.30 7.88 9.45 10.24 11.03 11.81 12.60 14.17 14.65 15.75 16.54

44 4.411 44 4.411 1.000 5.67 7.25 8.82 9.61 10.40 11.18 11.97 13.54 14.02 15.12 15.91

48 4.812 48 4.812 1.000 6.62 8.19 8.98 9.77 10.55 11.34 12.91 13.39 14.49 15.28

56 5.614 56 5.614 1.000 6.93 7.72 8.51 9.29 10.08 11.65 12.13 13.23 14.02

64 6.416 64 6.416 1.000 7.25 8.03 8.82 10.39 10.87 11.97 12.76

72 7.218 72 7.218 1.000 9.13 9.61 10.71 11.50

80 8.020 80 8.020 1.000 9.45 10.24

38 3.810 40 4.010 1.053 4.88 5.67 6.46 8.03 9.61 10.39 11.18 11.97 12.76 14.33 14.80 15.90 16.69

36 3.609 38 3.810 1.056 5.20 5.98 6.77 8.35 9.92 10.71 11.50 12.28 13.07 14.64 15.12 16.22 17.01

34 3.409 36 3.609 1.059 5.51 6.30 7.09 8.66 10.24 11.02 11.81 12.60 13.39 14.96 15.43 16.53 17.32

32 3.208 34 3.409 1.063 4.25 5.83 6.61 7.40 8.98 10.55 11.34 12.13 12.91 13.70 15.27 15.75 16.85 17.64

30 3.008 32 3.208 1.067 4.57 6.14 6.93 7.72 9.29 10.87 11.65 12.44 13.23 14.02 15.59 16.06 17.16 17.95

28 2.807 30 3.008 1.071 4.88 6.46 7.24 8.03 9.61 11.18 11.97 12.76 13.54 14.33 15.90 16.38 17.48 18.27

26 2.607 28 2.807 1.077 3.31 5.20 6.77 7.56 8.35 9.92 11.50 12.28 13.07 13.86 14.65 16.22 16.69 17.79 18.58

24 2.406 26 2.607 1.083 3.62 5.51 7.09 7.87 8.66 10.24 11.81 12.60 13.39 14.17 14.96 16.53 17.01 18.11 18.90

22 2.206 24 2.406 1.091 3.94 5.83 7.40 8.19 8.98 10.55 12.13 12.91 13.70 14.49 15.28 16.85 17.32 18.42 19.21

44 4.411 48 4.812 1.091 5.35 6.93 8.50 9.29 10.08 10.86 11.65 13.22 13.70 14.80 15.59

40 4.010 44 4.411 1.100 5.19 5.98 7.56 9.13 9.92 10.71 11.49 12.28 13.85 14.33 15.43 16.22

36 3.609 40 4.010 1.111 5.04 5.82 6.61 8.19 9.76 10.55 11.34 12.12 12.91 14.48 14.96 16.06 16.85

72 7.218 80 8.020 1.111 8.49 8.97 10.07 10.86

34 3.409 38 3.810 1.118 5.35 6.14 6.93 8.50 10.08 10.86 11.65 12.44 13.23 14.80 15.27 16.37 17.16

32 3.208 36 3.609 1.125 4.09 5.67 6.45 7.24 8.82 10.39 11.18 11.97 12.75 13.54 15.11 15.59 16.69 17.48

64 6.416 72 7.218 1.125 7.39 8.18 9.75 10.23 11.33 12.12

80 8.020 90 9.023 1.125 9.44

30 3.008 34 3.409 1.133 4.41 5.98 6.77 7.56 9.13 10.71 11.49 12.28 13.07 13.86 15.43 15.90 17.00 17.79

28 2.807 32 3.208 1.143 4.72 6.30 7.08 7.87 9.45 11.02 11.81 12.60 13.38 14.17 15.74 16.22 17.32 18.11

56 5.614 64 6.416 1.143 7.08 7.87 8.65 9.44 11.01 11.49 12.59 13.38

26 2.607 30 3.008 1.154 5.04 6.61 7.40 8.19 9.76 11.34 12.12 12.91 13.70 14.49 16.06 16.53 17.63 18.42

38 3.810 44 4.411 1.158 5.34 6.14 7.71 9.29 10.07 10.86 11.65 12.44 14.01 14.49 15.59 16.38

24 2.406 28 2.807 1.167 3.46 5.35 6.93 7.71 8.50 10.08 11.65 12.44 13.23 14.01 14.80 16.37 16.85 17.95 18.74

48 4.812 56 5.614 1.167 5.97 7.55 8.34 9.13 9.91 10.70 12.27 12.75 13.85 14.64

34 3.409 40 4.010 1.176 5.19 5.98 6.77 8.34 9.92 10.70 11.49 12.28 13.07 14.64 15.12 16.22 17.01

22 2.206 26 2.607 1.182 3.77 5.67 7.24 8.03 8.82 10.39 11.97 12.75 13.54 14.33 15.12 16.69 17.16 18.26 19.05

32 3.208 38 3.810 1.188 5.50 6.29 7.08 8.66 10.23 11.02 11.81 12.59 13.38 14.96 15.43 16.53 17.32

30 3.008 36 3.609 1.200 4.24 5.82 6.61 7.40 8.97 10.55 11.33 12.12 12.91 13.70 15.27 15.75 16.85 17.64

40 4.010 48 4.812 1.200 5.66 7.24 8.81 9.60 10.39 11.17 11.96 13.54 14.01 15.11 15.90

28 2.807 34 3.409 1.214 4.56 6.14 6.92 7.71 9.29 10.86 11.65 12.44 13.22 14.01 15.59 16.06 17.16 17.95

36 3.609 44 4.411 1.222 4.71 5.50 6.29 7.87 9.44 10.23 11.02 11.80 12.59 14.17 14.64 15.74 16.53

26 2.607 32 3.208 1.231 4.87 6.45 7.24 8.03 9.60 11.18 11.96 12.75 13.54 14.33 15.90 16.38 17.48 18.27

24 2.406 30 3.008 1.250 3.29 5.19 6.77 7.55 8.34 9.92 11.49 12.28 13.07 13.85 14.64 16.22 16.69 17.79 18.58

32 3.208 40 4.010 1.250 5.34 6.13 6.92 8.50 10.07 10.86 11.65 12.43 13.22 14.80 15.27 16.37 17.16

64 6.416 80 8.020 1.250 9.10 9.57 10.68 11.47

72 7.218 90 9.023 1.250 9.25 10.04

38 3.810 48 4.812 1.263 5.01 5.81 7.39 8.96 9.75 10.54 11.33 12.12 13.69 14.16 15.27 16.06

30 3.008 38 3.810 1.267 4.08 5.66 6.44 7.23 8.81 10.39 11.17 11.96 12.75 13.54 15.11 15.58 16.69 17.48

22 2.206 28 2.807 1.273 3.61 5.50 7.08 7.87 8.66 10.23 11.81 12.59 13.38 14.17 14.96 16.53 17.01 18.11 18.90

44 4.411 56 5.614 1.273 6.27 7.85 8.64 9.43 10.22 11.01 12.58 13.06 14.16 14.95

28 2.807 36 3.609 1.286 4.39 5.97 6.76 7.55 9.13 10.70 11.49 12.28 13.06 13.86 15.43 15.90 17.00 17.79

56 5.614 72 7.218 1.286 7.20 7.99 8.79 10.36 10.84 11.94 12.73

34 3.409 44 4.411 1.294 4.86 5.65 6.44 8.02 9.60 10.38 11.17 11.96 12.75 14.32 14.79 15.90 16.69

26 2.607 34 3.409 1.308 4.71 6.29 7.07 7.86 9.44 11.02 11.80 12.59 13.38 14.17 15.74 16.22 17.32 18.11

24 2.406 32 3.208 1.333 5.02 6.60 7.39 8.18 9.76 11.33 12.12 12.91 13.69 14.49 16.06 16.53 17.63 18.42

30 3.008 40 4.010 1.333 5.49 6.28 7.07 8.65 10.23 11.01 11.80 12.59 13.38 14.95 15.42 16.53 17.32

36 3.609 48 4.812 1.333 5.16 5.96 7.54 9.12 9.90 10.69 11.48 12.27 13.84 14.32 15.42 16.21

48 4.812 64 6.416 1.333 6.88 7.67 8.47 9.26 10.05 11.62 12.10 13.20 13.99

8mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 0.70 0.80 0.80 0.80 090 090 090 090 090 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 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

Grooves No. of

Grooves

20.15 20.63 21.73 24.88 26.30 27.71 28.03 31.18 31.97 35.90 39.84 43.78 47.71 51.65 56.53 61.10 67.40 83.15 1.000 22 22

19.84 20.32 21.42 24.57 25.99 27.40 27.72 30.87 31.66 35.59 39.53 43.47 47.40 51.34 56.22 60.79 67.09 82.84 1.000 24 24

19.52 20.00 21.10 24.25 25.67 27.08 27.40 30.55 31.34 35.27 39.21 43.15 47.08 51.02 55.90 60.47 66.77 82.52 1.000 26 26

19.21 19.69 20.79 23.94 25.36 26.77 27.09 30.24 31.03 34.96 38.90 42.84 46.77 50.71 55.59 60.16 66.46 82.21 1.000 28 28

18.90 19.37 20.47 23.62 25.04 26.46 26.77 29.92 30.71 34.65 38.58 42.52 46.46 50.40 55.28 59.84 66.14 81.89 1.000 30 30

18.58 19.06 20.16 23.31 24.73 26.14 26.46 29.61 30.40 34.33 38.27 42.21 46.14 50.08 54.96 59.53 65.83 81.58 1.000 32 32

18.27 18.74 19.84 22.99 24.41 25.83 26.14 29.29 30.08 34.02 37.95 41.89 45.83 49.77 54.65 59.21 65.51 81.26 1.000 34 34

17.95 18.43 19.53 22.68 24.10 25.51 25.83 28.98 29.77 33.70 37.64 41.58 45.51 49.45 54.33 58.90 65.20 80.95 1.000 36 36

17.64 18.11 19.21 22.36 23.78 25.20 25.51 28.66 29.45 33.39 37.32 41.26 45.20 49.14 54.02 58.58 64.88 80.63 1.000 38 38

17.32 17.80 18.90 22.05 23.47 24.88 25.20 28.35 29.14 33.07 37.01 40.95 44.88 48.82 53.70 58.27 64.57 80.32 1.000 40 40

16.69 17.17 18.27 21.42 22.84 24.25 24.57 27.72 28.51 32.44 36.38 40.32 44.25 48.19 53.07 57.64 63.94 79.69 1.000 44 44

16.06 16.54 17.64 20.79 22.21 23.62 23.94 27.09 27.88 31.81 35.75 39.69 43.62 47.56 52.44 57.01 63.31 79.06 1.000 48 48

14.80 15.28 16.38 19.53 20.95 22.36 22.68 25.83 26.62 30.55 34.49 38.43 42.36 46.30 51.18 55.75 62.05 77.80 1.000 56 56

13.54 14.02 15.12 18.27 19.69 21.10 21.42 24.57 25.36 29.29 33.23 37.17 41.10 45.04 49.92 54.49 60.79 76.54 1.000 64 64

12.28 12.76 13.86 17.01 18.43 19.84 20.16 23.31 24.10 28.03 31.97 35.91 39.84 43.78 48.66 53.23 59.53 75.28 1.000 72 72

11.02 11.50 12.60 15.75 17.17 18.58 18.90 22.05 22.84 26.77 30.71 34.65 38.58 42.52 47.40 51.97 58.27 74.02 1.000 80 80

17.48 17.95 19.05 22.20 23.62 25.04 25.35 28.50 29.29 33.23 37.16 41.10 45.04 48.98 53.86 58.42 64.72 80.47 1.053 38 40

17.79 18.27 19.37 22.52 23.94 25.35 25.67 28.82 29.61 33.54 37.48 41.42 45.35 49.29 54.17 58.74 65.04 80.79 1.056 36 38

18.11 18.58 19.68 22.83 24.25 25.67 25.98 29.13 29.92 33.86 37.79 41.73 45.67 49.61 54.49 59.05 65.35 81.10 1.059 34 36

18.42 18.90 20.00 23.15 24.57 25.98 26.30 29.45 30.24 34.17 38.11 42.05 45.98 49.92 54.80 59.37 65.67 81.42 1.063 32 34

18.74 19.21 20.31 23.46 24.88 26.30 26.61 29.76 30.55 34.49 38.42 42.36 46.30 50.24 55.12 59.68 65.98 81.73 1.067 30 32

19.05 19.53 20.63 23.78 25.20 26.61 26.93 30.08 30.87 34.80 38.74 42.68 46.61 50.55 55.43 60.00 66.30 82.05 1.071 28 30

19.37 19.84 20.94 24.09 25.51 26.93 27.24 30.39 31.18 35.12 39.05 42.99 46.93 50.87 55.75 60.31 66.61 82.36 1.077 26 28

19.68 20.16 21.26 24.41 25.83 27.24 27.56 30.71 31.50 35.43 39.37 43.31 47.24 51.18 56.06 60.63 66.93 82.68 1.083 24 26

20.00 20.47 21.57 24.72 26.14 27.56 27.87 31.02 31.81 35.75 39.68 43.62 47.56 51.50 56.38 60.94 67.24 82.99 1.091 22 24

16.38 16.85 17.95 21.10 22.52 23.94 24.25 27.40 28.19 32.13 36.06 40.00 43.94 47.88 52.76 57.32 63.62 79.37 1.091 44 48

17.00 17.48 18.58 21.73 23.15 24.57 24.88 28.03 28.82 32.76 36.69 40.63 44.57 48.51 53.39 57.95 64.25 80.00 1.100 40 44

17.63 18.11 19.21 22.36 23.78 25.20 25.51 28.66 29.45 33.39 37.32 41.26 45.20 49.14 54.02 58.58 64.88 80.63 1.111 36 40

11.65 12.12 13.22 16.37 17.79 19.21 19.52 22.67 23.46 27.40 31.33 35.27 39.21 43.15 48.03 52.60 58.90 74.65 1.111 72 80

17.95 18.42 19.52 22.67 24.09 25.51 25.82 28.97 29.76 33.70 37.63 41.57 45.51 49.45 54.33 58.89 65.19 80.94 1.118 34 38

18.26 18.74 19.84 22.99 24.41 25.83 26.14 29.29 30.08 34.02 37.95 41.89 45.83 49.77 54.65 59.21 65.51 81.26 1.125 32 36

12.91 13.38 14.48 17.63 19.05 20.47 20.78 23.93 24.72 28.66 32.59 36.53 40.47 44.41 49.29 53.86 60.16 75.91 1.125 64 72

10.22 10.70 11.80 14.95 16.37 17.79 18.10 21.25 22.04 25.98 29.92 33.86 37.79 41.73 46.61 51.18 57.48 73.23 1.125 80 90

18.58 19.05 20.15 23.30 24.72 26.14 26.45 29.60 30.39 34.33 38.26 42.20 46.14 50.08 54.96 59.52 65.82 81.57 1.133 30 34

18.89 19.37 20.47 23.62 25.04 26.46 26.77 29.92 30.71 34.65 38.58 42.52 46.46 50.40 55.28 59.84 66.14 81.89 1.143 28 32

14.17 14.64 15.74 18.89 20.31 21.73 22.04 25.19 25.98 29.92 33.85 37.79 41.73 45.67 50.55 55.12 61.42 77.17 1.143 56 64

19.21 19.68 20.78 23.93 25.35 26.77 27.08 30.23 31.02 34.96 38.89 42.83 46.77 50.71 55.59 60.15 66.45 82.20 1.154 26 30

17.16 17.64 18.74 21.89 23.31 24.72 25.04 28.19 28.98 32.91 36.85 40.79 44.72 48.66 53.54 58.11 64.41 80.16 1.158 38 44

19.52 20.00 21.10 24.25 25.67 27.08 27.40 30.55 31.34 35.28 39.21 43.15 47.09 51.03 55.91 60.47 66.77 82.52 1.167 24 28

15.43 15.90 17.00 20.15 21.57 22.99 23.30 26.45 27.24 31.18 35.11 39.05 42.99 46.93 51.81 56.38 62.68 78.43 1.167 48 56

17.79 18.27 19.37 22.52 23.94 25.35 25.67 28.82 29.61 33.54 37.48 41.42 45.35 49.29 54.17 58.74 65.04 80.79 1.176 34 40

19.84 20.31 21.41 24.56 25.98 27.40 27.71 30.86 31.65 35.59 39.52 43.46 47.40 51.34 56.22 60.78 67.08 82.83 1.182 22 26

18.11 18.58 19.68 22.83 24.25 25.67 25.98 29.13 29.92 33.86 37.79 41.73 45.67 49.61 54.49 59.05 65.35 81.10 1.188 32 38

18.42 18.90 20.00 23.15 24.57 25.98 26.30 29.45 30.24 34.17 38.11 42.05 45.98 49.92 54.80 59.37 65.67 81.42 1.200 30 36

16.69 17.16 18.26 21.41 22.83 24.25 24.56 27.71 28.50 32.44 36.37 40.31 44.25 48.19 53.07 57.63 63.93 79.69 1.200 40 48

18.74 19.21 20.31 23.46 24.88 26.30 26.61 29.76 30.55 34.49 38.42 42.36 46.30 50.24 55.12 59.68 65.98 81.73 1.214 28 34

17.32 17.79 18.89 22.04 23.46 24.88 25.19 28.34 29.13 33.07 37.00 40.94 44.88 48.82 53.70 58.26 64.56 80.32 1.222 36 44

19.05 19.53 20.63 23.78 25.20 26.61 26.93 30.08 30.87 34.80 38.74 42.68 46.61 50.55 55.43 60.00 66.30 82.05 1.231 26 32

19.37 19.84 20.94 24.09 25.51 26.93 27.24 30.39 31.18 35.12 39.05 42.99 46.93 50.87 55.75 60.31 66.61 82.36 1.250 24 30

17.95 18.42 19.52 22.67 24.09 25.51 25.82 28.97 29.76 33.70 37.63 41.57 45.51 49.45 54.33 58.89 65.19 80.95 1.250 32 40

12.26 12.73 13.83 16.99 18.41 19.83 20.14 23.29 24.08 28.02 31.96 35.90 39.83 43.77 48.66 53.22 59.52 75.27 1.250 64 80

10.83 11.30 12.41 15.56 16.99 18.40 18.72 21.87 22.66 26.60 30.54 34.48 38.41 42.35 47.24 51.80 58.10 73.85 1.250 72 90

16.84 17.32 18.42 21.57 22.99 24.40 24.72 27.87 28.66 32.59 36.53 40.47 44.41 48.35 53.23 57.79 64.09 79.84 1.263 38 48

18.26 18.74 19.84 22.99 24.41 25.82 26.14 29.29 30.08 34.01 37.95 41.89 45.82 49.76 54.64 59.21 65.51 81.26 1.267 30 38

19.68 20.16 21.26 24.41 25.83 27.24 27.56 30.71 31.50 35.43 39.37 43.31 47.24 51.18 56.06 60.63 66.93 82.68 1.273 22 28

15.73 16.21 17.31 20.46 21.88 23.30 23.61 26.76 27.55 31.49 35.43 39.37 43.30 47.24 52.12 56.69 62.99 78.74 1.273 44 56

18.58 19.05 20.15 23.30 24.72 26.14 26.45 29.60 30.39 34.33 38.26 42.20 46.14 50.08 54.96 59.52 65.82 81.57 1.286 28 36

13.52 13.99 15.10 18.25 19.67 21.09 21.40 24.55 25.34 29.28 33.22 37.16 41.09 45.03 49.92 54.48 60.78 76.53 1.286 56 72

17.47 17.95 19.05 22.20 23.62 25.03 25.35 28.50 29.29 33.22 37.16 41.10 45.04 48.98 53.86 58.42 64.72 80.47 1.294 34 44

18.89 19.37 20.47 23.62 25.04 26.45 26.77 29.92 30.71 34.64 38.58 42.52 46.45 50.39 55.27 59.84 66.14 81.89 1.308 26 34

19.21 19.68 20.78 23.93 25.35 26.77 27.08 30.23 31.02 34.96 38.89 42.83 46.77 50.71 55.59 60.15 66.45 82.20 1.333 24 32

18.10 18.58 19.68 22.83 24.25 25.66 25.98 29.13 29.92 33.85 37.79 41.73 45.67 49.61 54.49 59.05 65.35 81.10 1.333 30 40

17.00 17.47 18.57 21.72 23.14 24.56 24.87 28.02 28.81 32.75 36.69 40.63 44.56 48.50 53.38 57.95 64.25 80.00 1.333 36 48

14.78 15.26 16.36 19.51 20.93 22.35 22.66 25.81 26.60 30.54 34.48 38.42 42.35 46.29 51.18 55.74 62.04 77.79 1.333 48 64

8mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

1.00 1.00 1.10 1.10 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

*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.

The Driving Force in Power Transmission. Page 31

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

384-8MGT

P.L 15.118

48 teeth

480-8MGT

P.L 18.898

60 teeth

560-8MGT

P.L 22.047

70 teeth

600-8MGT

P.L 23.622

75 teeth

640-8MGT

P.L 25.197

80 teeth

720-8MGT

P.L 28.346

90 teeth

800-8MGT

P.L 31.496

100 teeth

840-8MGT

P.L 33.071

105 teeth

880-8MGT

P.L 34.646

110 teeth

920-8MGT

P.L 36.220

115 teeth

960-8MGT

P.L 37.795

120 teeth

1040-8MGT

P.L 40.945

130 teeth

1064-8MGT

P.L 41.890

133 teeth

1120-8MGT

P.L 44.094

140 teeth

1160-8MGT

P.L 45.669

145 teeth

28 2.807 38 3.810 1.357 4.22 5.81 6.59 7.39 8.96 10.54 11.33 12.12 12.90 13.69 15.26 15.74 16.84 17.63

22 2.206 30 3.008 1.364 3.44 5.34 6.92 7.70 8.50 10.07 11.65 12.43 13.22 14.01 14.80 16.37 16.85 17.95 18.74

32 3.208 44 4.411 1.375 5.00 5.79 6.59 8.17 9.75 10.53 11.33 12.11 12.90 14.47 14.95 16.05 16.84

26 2.607 36 3.609 1.385 4.54 6.12 6.91 7.70 9.28 10.86 11.64 12.43 13.22 14.01 15.58 16.06 17.16 17.95

40 4.010 56 5.614 1.400 6.57 8.15 8.94 9.73 10.52 11.31 12.89 13.36 14.46 15.26

80 8.020 112 11.229 1.400

64 6.416 90 9.023 1.406 8.24 8.72 9.83 10.63

34 3.409 48 4.812 1.412 5.31 6.10 7.69 9.27 10.05 10.85 11.63 12.42 14.00 14.47 15.57 16.36

24 2.406 34 3.409 1.417 4.86 6.44 7.23 8.02 9.59 11.17 11.96 12.75 13.53 14.32 15.89 16.37 17.47 18.26

28 2.807 40 4.010 1.429 4.05 5.64 6.43 7.22 8.80 10.38 11.16 11.96 12.74 13.53 15.10 15.58 16.68 17.47

56 5.614 80 8.020 1.429 8.10 9.69 10.17 11.27 12.07

22 2.206 32 3.208 1.455 3.27 5.17 6.75 7.54 8.33 9.91 11.49 12.27 13.06 13.85 14.64 16.21 16.69 17.79 18.58

44 4.411 64 6.416 1.455 7.18 7.97 8.76 9.55 10.35 11.92 12.40 13.50 14.30

26 2.607 38 3.810 1.462 4.37 5.95 6.74 7.54 9.12 10.69 11.48 12.27 13.06 13.85 15.42 15.89 16.99 17.78

30 3.008 44 4.411 1.467 5.15 5.94 6.74 8.32 9.90 10.69 11.48 12.26 13.05 14.63 15.10 16.20 16.99

38 3.810 56 5.614 1.474 6.71 8.30 9.09 9.88 10.67 11.46 13.04 13.51 14.62 15.41

24 2.406 36 3.609 1.500 4.69 6.27 7.06 7.85 9.43 11.01 11.80 12.59 13.37 14.16 15.73 16.21 17.31 18.10

32 3.208 48 4.812 1.500 4.66 5.45 6.25 7.84 9.42 10.20 11.00 11.78 12.58 14.15 14.62 15.73 16.52

48 4.812 72 7.218 1.500 6.98 7.78 8.58 9.37 10.96 11.43 12.54 13.33

26 2.607 40 4.010 1.538 4.19 5.79 6.58 7.37 8.95 10.53 11.32 12.11 12.89 13.69 15.26 15.73 16.83 17.62

22 2.206 34 3.409 1.545 5.00 6.59 7.38 8.17 9.75 11.32 12.11 12.90 13.69 14.48 16.05 16.52 17.62 18.42

36 3.609 56 5.614 1.556 5.26 6.86 8.45 9.24 10.03 10.82 11.61 13.19 13.66 14.77 15.56

72 7.218 112 11.229 1.556

28 2.807 44 4.411 1.571 5.30 6.09 6.88 8.47 10.05 10.84 11.63 12.42 13.21 14.78 15.25 16.36 17.15

24 2.406 38 3.810 1.583 4.51 6.10 6.89 7.69 9.27 10.85 11.63 12.42 13.21 14.00 15.57 16.05 17.15 17.94

30 3.008 48 4.812 1.600 4.80 5.60 6.39 7.98 9.57 10.35 11.15 11.93 12.73 14.30 14.78 15.88 16.67

40 4.010 64 6.416 1.600 5.86 7.46 8.26 9.06 9.85 10.64 12.22 12.70 13.80 14.60

56 5.614 90 9.023 1.607 8.81 9.29 10.41 11.21

22 2.206 36 3.609 1.636 4.83 6.42 7.21 8.00 9.58 11.16 11.95 12.74 13.52 14.32 15.89 16.36 17.46 18.25

44 4.411 72 7.218 1.636 6.46 7.27 8.07 8.87 9.66 11.25 11.73 12.83 13.63

34 3.409 56 5.614 1.647 5.40 7.00 8.59 9.38 10.18 10.97 11.76 13.34 13.81 14.92 15.71

24 2.406 40 4.010 1.667 4.34 5.93 6.72 7.52 9.10 10.68 11.47 12.26 13.05 13.84 15.41 15.89 16.99 17.78

48 4.812 80 8.020 1.667 7.06 7.87 8.67 10.27 10.75 11.86 12.65

38 3.810 64 6.416 1.684 6.00 7.61 8.40 9.20 9.99 10.79 12.37 12.85 13.95 14.75

26 2.607 44 4.411 1.692 5.44 6.23 7.03 8.62 10.20 10.99 11.78 12.57 13.36 14.93 15.41 16.51 17.30

28 2.807 48 4.812 1.714 4.94 5.74 6.54 8.13 9.71 10.50 11.30 12.08 12.88 14.45 14.93 16.03 16.82

22 2.206 38 3.810 1.727 4.66 6.25 7.04 7.83 9.42 11.00 11.78 12.57 13.36 14.15 15.72 16.20 17.30 18.09

32 3.208 56 5.614 1.750 5.54 7.14 8.74 9.53 10.33 11.12 11.91 13.49 13.96 15.07 15.86

64 6.416 112 11.229 1.750

36 3.609 64 6.416 1.778 6.14 7.75 8.55 9.35 10.14 10.94 12.52 13.00 14.10 14.90

40 4.010 72 7.218 1.800 6.74 7.55 8.35 9.15 9.95 11.54 12.02 13.13 13.92

80 8.020 144 14.437 1.800

22 2.206 40 4.010 1.818 4.48 6.08 6.87 7.66 9.25 10.83 11.62 12.41 13.20 13.99 15.56 16.04 17.14 17.93

44 4.411 80 8.020 1.818 7.34 8.15 8.95 10.55 11.03 12.15 12.95

24 2.406 44 4.411 1.833 3.97 5.58 6.38 7.18 8.76 10.35 11.14 11.93 12.72 13.51 15.08 15.56 16.66 17.45

26 2.607 48 4.812 1.846 5.08 5.88 6.68 8.27 9.86 10.65 11.44 12.23 13.03 14.60 15.08 16.18 16.97

30 3.008 56 5.614 1.867 4.86 5.68 7.29 8.88 9.68 10.47 11.26 12.06 13.64 14.11 15.22 16.01

48 4.812 90 9.023 1.875 7.75 9.37 9.85 10.98 11.78

34 3.409 64 6.416 1.882 6.28 7.89 8.69 9.49 10.28 11.08 12.66 13.14 14.25 15.04

38 3.810 72 7.218 1.895 6.88 7.68 8.49 9.29 10.09 11.68 12.16 13.27 14.07

22 2.206 44 4.411 2.000 4.10 5.72 6.52 7.32 8.91 10.50 11.28 12.08 12.87 13.66 15.23 15.71 16.81 17.60

24 2.406 48 4.812 2.000 5.22 6.02 6.82 8.42 10.01 10.80 11.59 12.38 13.18 14.75 15.23 16.33 17.12

28 2.807 56 5.614 2.000 5.00 5.82 7.43 9.03 9.82 10.62 11.41 12.21 13.78 14.26 15.37 16.16

32 3.208 64 6.416 2.000 6.41 8.03 8.83 9.63 10.43 11.23 12.81 13.29 14.40 15.19

36 3.609 72 7.218 2.000 7.01 7.82 8.63 9.43 10.24 11.83 12.31 13.42 14.22

40 4.010 80 8.020 2.000 6.79 7.61 8.42 9.23 10.84 11.32 12.43 13.23

56 5.614 112 11.229 2.000 9.17

72 7.218 144 14.437 2.000

44 4.411 90 9.023 2.045 7.19 8.01 9.64 10.13 11.26 12.06

38 3.810 80 8.020 2.105 6.92 7.75 8.56 9.37 10.98 11.46 12.58 13.38

34 3.409 72 7.218 2.118 7.15 7.96 8.77 9.57 10.38 11.97 12.45 13.56 14.36

30 3.008 64 6.416 2.133 6.55 8.17 8.97 9.77 10.57 11.37 12.96 13.44 14.54 15.34

26 2.607 56 5.614 2.154 5.13 5.95 7.57 9.17 9.96 10.76 11.56 12.35 13.93 14.41 15.52 16.31

22 2.206 48 4.812 2.182 5.35 6.16 6.97 8.56 10.15 10.95 11.74 12.53 13.32 14.90 15.38 16.48 17.27

8mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Length Factor* 0.70 0.80 0.80 0.80 090 090 090 090 090 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 32 The Gates Rubber Company

Center Distance, Inches

Speed

Ratio

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

No. of

Grooves No. of

Grooves

18.42 18.89 19.99 23.14 24.56 25.98 26.29 29.44 30.23 34.17 38.10 42.05 45.98 49.92 54.80 59.37 65.67 81.42 1.357 28 38

19.52 20.00 21.10 24.25 25.67 27.08 27.40 30.55 31.34 35.27 39.21 43.15 47.08 51.02 55.90 60.47 66.77 82.52 1.364 22 30

17.63 18.10 19.20 22.35 23.77 25.19 25.50 28.65 29.44 33.38 37.32 41.26 45.19 49.13 54.01 58.58 64.88 80.63 1.375 32 44

18.73 19.21 20.31 23.46 24.88 26.29 26.61 29.76 30.55 34.48 38.42 42.36 46.30 50.24 55.12 59.68 65.98 81.73 1.385 26 36

16.04 16.52 17.62 20.77 22.19 23.61 23.92 27.07 27.86 31.80 35.74 39.68 43.61 47.55 52.44 57.00 63.30 79.05 1.400 40 56

9.95 13.13 14.56 15.98 16.30 19.46 20.25 24.20 28.14 32.09 36.03 39.97 44.85 49.42 55.72 71.48 1.400 80 112

11.42 11.90 13.00 16.17 17.59 19.01 19.33 22.48 23.27 27.21 31.15 35.10 39.03 42.97 47.86 52.42 58.72 74.48 1.406 64 90

17.15 17.62 18.73 21.88 23.30 24.71 25.03 28.18 28.97 32.91 36.84 40.78 44.72 48.66 53.54 58.10 64.40 80.16 1.412 34 48

19.05 19.52 20.62 23.77 25.19 26.61 26.92 30.07 30.86 34.80 38.73 42.67 46.61 50.55 55.43 60.00 66.30 82.05 1.417 24 34

18.26 18.73 19.83 22.98 24.40 25.82 26.13 29.28 30.07 34.01 37.95 41.89 45.82 49.76 54.64 59.21 65.51 81.26 1.429 28 40

12.86 13.33 14.44 17.60 19.02 20.44 20.75 23.91 24.70 28.64 32.57 36.52 40.45 44.40 49.28 53.84 60.14 75.90 1.429 56 80

19.36 19.84 20.94 24.09 25.51 26.92 27.24 30.39 31.18 35.11 39.05 42.99 46.93 50.87 55.75 60.31 66.61 82.36 1.455 22 32

15.08 15.56 16.66 19.82 21.24 22.65 22.97 26.12 26.91 30.85 34.79 38.73 42.66 46.61 51.49 56.05 62.35 78.11 1.455 44 64

18.57 19.05 20.15 23.30 24.72 26.13 26.45 29.60 30.39 34.32 38.26 42.20 46.14 50.08 54.96 59.52 65.82 81.57 1.462 26 38

17.78 18.25 19.36 22.51 23.93 25.34 25.66 28.81 29.60 33.54 37.47 41.41 45.35 49.29 54.17 58.73 65.03 80.79 1.467 30 44

16.19 16.67 17.77 20.92 22.35 23.76 24.08 27.23 28.02 31.96 35.89 39.83 43.77 47.71 52.59 57.16 63.46 79.21 1.474 38 56

18.89 19.36 20.46 23.61 25.03 26.45 26.76 29.91 30.70 34.64 38.58 42.52 46.45 50.39 55.27 59.84 66.14 81.89 1.500 24 36

17.30 17.78 18.88 22.03 23.45 24.87 25.18 28.33 29.13 33.06 37.00 40.94 44.87 48.81 53.70 58.26 64.56 80.31 1.500 32 48

14.12 14.60 15.70 18.86 20.28 21.70 22.01 25.17 25.96 29.90 33.84 37.78 41.71 45.66 50.54 55.10 61.40 77.16 1.500 48 72

18.41 18.88 19.99 23.14 24.56 25.97 26.29 29.44 30.23 34.17 38.10 42.04 45.98 49.92 54.80 59.36 65.66 81.41 1.538 26 40

19.20 19.68 20.78 23.93 25.35 26.76 27.08 30.23 31.02 34.95 38.89 42.83 46.77 50.71 55.59 60.15 66.45 82.20 1.545 22 34

16.35 16.82 17.92 21.08 22.50 23.92 24.23 27.38 28.17 32.11 36.05 39.99 43.92 47.87 52.75 57.31 63.61 79.36 1.556 36 56

10.51 13.71 15.14 16.57 16.89 20.06 20.85 24.80 28.75 32.70 36.64 40.58 45.47 50.04 56.34 72.10 1.556 72 112

17.93 18.41 19.51 22.66 24.08 25.50 25.81 28.96 29.76 33.69 37.63 41.57 45.50 49.44 54.33 58.89 65.19 80.94 1.571 28 44

18.72 19.20 20.30 23.45 24.87 26.29 26.60 29.75 30.54 34.48 38.42 42.36 46.29 50.23 55.11 59.68 65.98 81.73 1.583 24 38

17.45 17.93 19.03 22.18 23.61 25.02 25.34 28.49 29.28 33.22 37.15 41.09 45.03 48.97 53.85 58.42 64.72 80.47 1.600 30 48

15.38 15.86 16.96 20.12 21.54 22.96 23.28 26.43 27.22 31.16 35.10 39.04 42.97 46.92 51.80 56.36 62.66 78.42 1.600 40 64

12.00 12.48 13.59 16.76 18.19 19.61 19.93 23.09 23.88 27.82 31.76 35.71 39.65 43.59 48.47 53.04 59.34 75.10 1.607 56 90

19.04 19.52 20.62 23.77 25.19 26.60 26.92 30.07 30.86 34.80 38.73 42.67 46.61 50.55 55.43 59.99 66.29 82.04 1.636 22 36

14.42 14.90 16.00 19.16 20.58 22.00 22.32 25.47 26.26 30.20 34.14 38.09 42.02 45.97 50.85 55.41 61.72 77.47 1.636 44 72

16.50 16.97 18.07 21.23 22.65 24.07 24.38 27.54 28.33 32.26 36.20 40.14 44.08 48.02 52.90 57.47 63.77 79.52 1.647 34 56

18.56 19.04 20.14 23.29 24.71 26.13 26.44 29.60 30.39 34.32 38.26 42.20 46.13 50.07 54.96 59.52 65.82 81.57 1.667 24 40

13.45 13.92 15.03 18.20 19.62 21.04 21.36 24.51 25.31 29.25 33.19 37.13 41.07 45.01 49.90 54.46 60.77 76.52 1.667 48 80

15.53 16.01 17.11 20.27 21.69 23.11 23.43 26.58 27.37 31.31 35.25 39.19 43.13 47.07 51.95 56.52 62.82 78.57 1.684 38 64

18.09 18.56 19.66 22.82 24.24 25.65 25.97 29.12 29.91 33.85 37.78 41.72 45.66 49.60 54.48 59.05 65.35 81.10 1.692 26 44

17.61 18.08 19.18 22.34 23.76 25.18 25.49 28.64 29.43 33.37 37.31 41.25 45.18 49.13 54.01 58.57 64.87 80.62 1.714 28 48

18.88 19.35 20.45 23.61 25.03 26.44 26.76 29.91 30.70 34.64 38.57 42.51 46.45 50.39 55.27 59.83 66.14 81.89 1.727 22 38

16.65 17.12 18.23 21.38 22.80 24.22 24.54 27.69 28.48 32.42 36.36 40.30 44.23 48.18 53.06 57.62 63.92 79.68 1.750 32 56

9.45 9.94 11.07 14.28 15.72 17.15 17.47 20.65 21.44 25.40 29.35 33.30 37.24 41.19 46.08 50.65 56.96 72.72 1.750 64 112

15.68 16.16 17.26 20.42 21.85 23.26 23.58 26.73 27.53 31.47 35.40 39.35 43.28 47.23 52.11 56.67 62.98 78.73 1.778 36 64

14.71 15.19 16.30 19.46 20.88 22.30 22.62 25.78 26.57 30.51 34.45 38.39 42.33 46.27 51.16 55.72 62.03 77.78 1.800 40 72

11.68 13.15 13.47 16.70 17.50 21.49 25.46 29.43 33.39 37.34 42.24 46.82 53.13 68.90 1.800 80 144

18.72 19.19 20.29 23.45 24.87 26.28 26.60 29.75 30.54 34.48 38.41 42.35 46.29 50.23 55.11 59.68 65.98 81.73 1.818 22 40

13.74 14.22 15.33 18.49 19.92 21.34 21.66 24.82 25.61 29.55 33.49 37.44 41.38 45.32 50.20 54.77 61.08 76.83 1.818 44 80

18.24 18.71 19.82 22.97 24.39 25.81 26.12 29.27 30.06 34.00 37.94 41.88 45.81 49.76 54.64 59.20 65.50 81.25 1.833 24 44

17.76 18.23 19.34 22.49 23.91 25.33 25.64 28.80 29.59 33.53 37.46 41.40 45.34 49.28 54.16 58.73 65.03 80.78 1.846 26 48

16.80 17.27 18.38 21.53 22.96 24.37 24.69 27.84 28.63 32.57 36.51 40.45 44.39 48.33 53.21 57.78 64.08 79.83 1.867 30 56

12.58 13.06 14.17 17.35 18.78 20.20 20.52 23.69 24.48 28.43 32.37 36.32 40.26 44.20 49.09 53.66 59.96 75.72 1.875 48 90

15.83 16.31 17.41 20.57 22.00 23.42 23.73 26.89 27.68 31.62 35.56 39.50 43.44 47.38 52.26 56.83 63.13 78.88 1.882 34 64

14.86 15.34 16.45 19.61 21.03 22.45 22.77 25.93 26.72 30.66 34.60 38.55 42.48 46.43 51.31 55.88 62.18 77.94 1.895 38 72

18.39 18.87 19.97 23.12 24.54 25.96 26.27 29.43 30.22 34.16 38.09 42.03 45.97 49.91 54.79 59.36 65.66 81.41 2.000 22 44

17.91 18.39 19.49 22.64 24.07 25.48 25.80 28.95 29.74 33.68 37.62 41.56 45.50 49.44 54.32 58.88 65.18 80.94 2.000 24 48

16.95 17.42 18.53 21.69 23.11 24.53 24.84 28.00 28.79 32.73 36.66 40.61 44.54 48.49 53.37 57.93 64.24 79.99 2.000 28 56

15.98 16.46 17.56 20.72 22.15 23.57 23.88 27.04 27.83 31.77 35.71 39.65 43.59 47.53 52.42 56.98 63.29 79.04 2.000 32 64

15.01 15.49 16.59 19.76 21.18 22.60 22.92 26.08 26.87 30.81 34.75 38.70 42.64 46.58 51.46 56.03 62.34 78.09 2.000 36 72

14.03 14.51 15.62 18.79 20.22 21.64 21.96 25.12 25.91 29.85 33.80 37.74 41.68 45.63 50.51 55.08 61.38 77.14 2.000 40 80

9.99 10.49 11.63 14.85 16.29 17.73 18.05 21.23 22.03 25.99 29.94 33.90 37.85 41.80 46.69 51.26 57.57 73.33 2.000 56 112

12.22 13.69 14.02 17.26 18.07 22.07 26.05 30.02 33.98 37.94 42.84 47.42 53.74 69.51 2.000 72 144

12.86 13.34 14.46 17.64 19.07 20.50 20.82 23.98 24.78 28.73 32.67 36.62 40.56 44.51 49.40 53.96 60.27 76.03 2.045 44 90

14.17 14.65 15.76 18.94 20.36 21.79 22.10 25.27 26.06 30.00 33.95 37.90 41.84 45.78 50.67 55.23 61.54 77.30 2.105 38 80

15.15 15.63 16.74 19.91 21.33 22.75 23.07 26.23 27.02 30.97 34.91 38.85 42.79 46.73 51.62 56.19 62.49 78.25 2.118 34 72

16.13 16.61 17.71 20.87 22.30 23.72 24.03 27.19 27.98 31.92 35.86 39.81 43.75 47.69 52.57 57.14 63.44 79.20 2.133 30 64

17.10 17.57 18.68 21.84 23.26 24.68 24.99 28.15 28.94 32.88 36.82 40.76 44.70 48.64 53.52 58.09 64.39 80.14 2.154 26 56

18.06 18.54 19.64 22.80 24.22 25.63 25.95 29.10 29.89 33.83 37.77 41.71 45.65 49.59 54.47 59.04 65.34 81.09 2.182 22 48

8mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

1.00 1.00 1.10 1.10 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

*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.

The Driving Force in Power Transmission. Page 33

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

384-8MGT

P.L 15.118

48 teeth

480-8MGT

P.L 18.898

60 teeth

560-8MGT

P.L 22.047

70 teeth

600-8MGT

P.L 23.622

75 teeth

640-8MGT

P.L 25.197

80 teeth

720-8MGT

P.L 28.346

90 teeth

800-8MGT

P.L 31.496

100 teeth

840-8MGT

P.L 33.071

105 teeth

880-8MGT

P.L 34.646

110 teeth

920-8MGT

P.L 36.220

115 teeth

960-8MGT

P.L 37.795

120 teeth

1040-8MGT

P.L 40.945

130 teeth

1064-8MGT

P.L 41.890

133 teeth

1120-8MGT

P.L 44.094

140 teeth

1160-8MGT

P.L 45.669

145 teeth

36 3.609 80 8.020 2.222 7.05 7.88 8.70 9.51 11.12 11.60 12.72 13.52

32 3.208 72 7.218 2.250 7.28 8.10 8.91 9.71 10.52 12.12 12.60 13.71 14.51

40 4.010 90 9.023 2.250 7.45 8.28 9.92 10.41 11.54 12.34

64 6.416 144 14.437 2.250

28 2.807 64 6.416 2.286 6.69 8.31 9.11 9.92 10.71 11.51 13.10 13.58 14.69 15.49

24 2.406 56 5.614 2.333 5.26 6.09 7.71 9.31 10.11 10.91 11.70 12.50 14.08 14.56 15.66 16.46

48 4.812 112 11.229 2.333 8.86 9.70

34 3.409 80 8.020 2.353 6.35 7.19 8.01 8.83 9.65 11.26 11.74 12.86 13.66

38 3.810 90 9.023 2.368 6.74 7.58 8.41 10.05 10.54 11.67 12.48

30 3.008 72 7.218 2.400 5.75 7.42 8.23 9.05 9.85 10.66 12.26 12.74 13.85 14.65

26 2.607 64 6.416 2.462 5.16 6.82 8.45 9.25 10.06 10.86 11.66 13.25 13.73 14.84 15.63

32 3.208 80 8.020 2.500 6.48 7.32 8.15 8.97 9.78 11.40 11.88 13.00 13.81

36 3.609 90 9.023 2.500 6.86 7.71 8.55 10.19 10.68 11.81 12.62

22 2.206 56 5.614 2.545 4.56 5.40 6.22 7.85 9.45 10.25 11.05 11.85 12.64 14.23 14.70 15.81 16.61

44 4.411 112 11.229 2.545 9.12 9.96

28 2.807 72 7.218 2.571 5.88 7.55 8.37 9.19 9.99 10.80 12.40 12.88 14.00 14.80

56 5.614 144 14.437 2.571

34 3.409 90 9.023 2.647 6.99 7.84 8.68 10.32 10.81 11.95 12.76

24 2.406 64 6.416 2.667 5.29 6.96 8.59 9.39 10.20 11.00 11.80 13.39 13.87 14.98 15.78

30 3.008 80 8.020 2.667 6.61 7.45 8.28 9.10 9.92 11.54 12.02 13.14 13.95

26 2.607 72 7.218 2.769 6.01 7.68 8.50 9.32 10.13 10.94 12.54 13.02 14.14 14.94

40 4.010 112 11.229 2.800 8.16 9.37 10.22

32 3.208 90 9.023 2.813 7.12 7.97 8.81 10.46 10.95 12.09 12.90

28 2.807 80 8.020 2.857 6.74 7.58 8.41 9.24 10.06 11.67 12.16 13.28 14.09

22 2.206 64 6.416 2.909 5.41 7.09 8.72 9.53 10.34 11.14 11.94 13.53 14.01 15.13 15.92

38 3.810 112 11.229 2.947 8.29 9.50 10.35

24 2.406 72 7.218 3.000 6.14 7.82 8.64 9.46 10.27 11.08 12.68 13.17 14.28 15.08

30 3.008 90 9.023 3.000 6.36 7.24 8.10 8.94 10.59 11.09 12.22 13.04

48 4.812 144 14.437 3.000

26 2.607 80 8.020 3.077 6.86 7.71 8.55 9.37 10.19 11.81 12.30 13.42 14.23

36 3.609 112 11.229 3.111 7.88 8.41 9.63 10.48

28 2.807 90 9.023 3.214 6.48 7.37 8.22 9.07 10.73 11.22 12.36 13.18

22 2.206 72 7.218 3.273 6.27 7.95 8.77 9.59 10.41 11.22 12.82 13.31 14.43 15.23

44 4.411 144 14.437 3.273

34 3.409 112 11.229 3.294 8.00 8.54 9.75 10.61

24 2.406 80 8.020 3.333 6.99 7.84 8.68 9.50 10.33 11.95 12.44 13.56 14.37

26 2.607 90 9.023 3.462 6.61 7.49 8.35 9.20 10.86 11.35 12.50 13.31

32 3.208 112 11.229 3.500 8.12 8.66 9.88 10.74

40 4.010 144 14.437 3.600

22 2.206 80 8.020 3.636 7.12 7.97 8.81 9.64 10.46 12.09 12.58 13.70 14.51

30 3.008 112 11.229 3.733 8.24 8.78 10.01 10.87

24 2.406 90 9.023 3.750 6.73 7.62 8.48 9.33 10.99 11.49 12.63 13.45

38 3.810 144 14.437 3.789

28 2.807 112 11.229 4.000 8.36 8.91 10.13 10.99

36 3.609 144 14.437 4.000

22 2.206 90 9.023 4.091 5.92 6.85 7.74 8.61 9.46 11.12 11.62 12.77 13.59

34 3.409 144 14.437 4.235

26 2.607 112 11.229 4.308 8.48 9.03 10.26 11.12

32 3.208 144 14.437 4.500

24 2.406 112 11.229 4.667 8.60 9.15 10.38 11.25

30 3.008 144 14.437 4.800

22 2.206 112 11.229 5.091 8.72 9.27 10.51 11.38

28 2.807 144 14.437 5.143

26 2.607 144 14.437 5.538

24 2.406 144 14.437 6.000

22 2.206 144 14.437 6.545

8mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Page 34 The Gates Rubber Company

Length Factor* 0.70 0.80 0.80 0.80 090 090 090 090 090 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.

Center Distance, Inches

Speed

Ratio

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

No. of

Grooves No. of

Grooves

14.32 14.80 15.91 19.08 20.51 21.94 22.25 25.42 26.21 30.16 34.10 38.05 41.99 45.93 50.82 55.39 61.69 77.45 2.222 36 80

15.30 15.78 16.89 20.06 21.48 22.90 23.22 26.38 27.17 31.12 35.06 39.00 42.94 46.89 51.77 56.34 62.64 78.40 2.250 32 72

13.14 13.63 14.75 17.93 19.37 20.79 21.11 24.28 25.07 29.03 32.97 36.92 40.87 44.81 49.70 54.27 60.58 76.34 2.250 40 90

11.24 12.75 14.23 14.56 17.81 18.62 22.64 26.62 30.60 34.57 38.53 43.44 48.02 54.34 70.12 2.250 64 144

16.28 16.75 17.86 21.02 22.45 23.87 24.18 27.34 28.13 32.08 36.02 39.96 43.90 47.84 52.73 57.29 63.60 79.35 2.286 28 64

17.25 17.72 18.83 21.99 23.41 24.83 25.14 28.30 29.09 33.03 36.97 40.91 44.85 48.79 53.68 58.24 64.55 80.30 2.333 24 56

10.53 11.03 12.17 15.41 16.86 18.30 18.62 21.81 22.61 26.58 30.54 34.50 38.45 42.40 47.29 51.87 58.18 73.95 2.333 48 112

14.46 14.94 16.05 19.23 20.66 22.08 22.40 25.56 26.36 30.31 34.25 38.20 42.14 46.09 50.97 55.54 61.85 77.60 2.353 34 80

13.28 13.77 14.89 18.08 19.51 20.94 21.26 24.43 25.22 29.17 33.12 37.07 41.02 44.97 49.85 54.42 60.73 76.49 2.368 38 90

15.44 15.92 17.03 20.20 21.63 23.05 23.37 26.53 27.32 31.27 35.21 39.16 43.10 47.04 51.93 56.49 62.80 78.56 2.400 30 72

16.42 16.90 18.01 21.17 22.60 24.02 24.33 27.49 28.28 32.23 36.17 40.11 44.05 48.00 52.88 57.45 63.75 79.51 2.462 26 64

14.60 15.08 16.20 19.38 20.81 22.23 22.55 25.71 26.51 30.46 34.40 38.35 42.29 46.24 51.12 55.69 62.00 77.76 2.500 32 80

13.43 13.91 15.03 18.22 19.66 21.08 21.40 24.57 25.37 29.32 33.27 37.23 41.17 45.12 50.01 54.58 60.88 76.65 2.500 36 90

17.39 17.87 18.98 22.14 23.56 24.98 25.30 28.45 29.24 33.18 37.12 41.07 45.01 48.95 53.83 58.40 64.70 80.46 2.545 22 56

10.79 11.29 12.44 15.69 17.14 18.58 18.90 22.10 22.90 26.87 30.83 34.79 38.75 42.70 47.59 52.17 58.48 74.25 2.545 44 112

15.59 16.07 17.18 20.35 21.78 23.20 23.52 26.68 27.47 31.42 35.36 39.31 43.25 47.19 52.08 56.65 62.95 78.71 2.571 28 72

11.76 13.28 14.77 15.10 18.36 19.18 23.20 27.20 31.18 35.15 39.12 44.03 48.62 54.94 70.73 2.571 56 144

13.56 14.05 15.17 18.37 19.80 21.23 21.55 24.72 25.52 29.47 33.42 37.38 41.32 45.27 50.16 54.73 61.04 76.80 2.647 34 90

16.57 17.05 18.16 21.32 22.75 24.17 24.48 27.64 28.44 32.38 36.32 40.27 44.21 48.15 53.03 57.60 63.90 79.66 2.667 24 64

14.75 15.23 16.34 19.52 20.95 22.38 22.70 25.86 26.66 30.61 34.55 38.50 42.44 46.39 51.28 55.85 62.15 77.91 2.667 30 80

15.73 16.21 17.32 20.50 21.93 23.35 23.67 26.83 27.62 31.57 35.51 39.46 43.40 47.35 52.23 56.80 63.11 78.86 2.769 26 72

11.06 11.56 12.71 15.97 17.42 18.86 19.19 22.38 23.18 27.16 31.13 35.09 39.04 43.00 47.90 52.47 58.79 74.56 2.800 40 112

13.70 14.19 15.31 18.51 19.95 21.38 21.69 24.87 25.66 29.62 33.57 37.53 41.47 45.42 50.31 54.88 61.19 76.95 2.813 32 90

14.89 15.37 16.49 19.67 21.10 22.53 22.84 26.01 26.80 30.76 34.70 38.65 42.60 46.54 51.43 56.00 62.31 78.07 2.857 28 80

16.72 17.19 18.30 21.47 22.90 24.32 24.63 27.79 28.59 32.53 36.47 40.42 44.36 48.30 53.19 57.75 64.06 79.82 2.909 22 64

11.19 11.69 12.84 16.10 17.56 19.01 19.33 22.53 23.33 27.31 31.27 35.24 39.19 43.15 48.05 52.62 58.94 74.71 2.947 38 112

15.88 16.36 17.47 20.65 22.08 23.50 23.81 26.98 27.77 31.72 35.67 39.61 43.55 47.50 52.39 56.96 63.26 79.02 3.000 24 72

13.84 14.33 15.45 18.65 20.09 21.52 21.84 25.01 25.81 29.77 33.72 37.68 41.62 45.57 50.46 55.03 61.34 77.11 3.000 30 90

12.27 13.80 15.30 15.63 18.91 19.73 23.76 27.77 31.76 35.74 39.71 44.62 49.21 55.54 71.33 3.000 48 144

15.03 15.51 16.63 19.81 21.25 22.67 22.99 26.16 26.95 30.90 34.85 38.80 42.75 46.70 51.58 56.15 62.46 78.22 3.077 26 80

11.32 11.82 12.98 16.24 17.70 19.15 19.47 22.67 23.47 27.45 31.42 35.39 39.34 43.30 48.20 52.77 59.09 74.86 3.111 36 112

13.98 14.47 15.59 18.80 20.23 21.67 21.98 25.16 25.96 29.92 33.87 37.83 41.77 45.72 50.61 55.19 61.50 77.26 3.214 28 90

16.02 16.50 17.61 20.79 22.22 23.65 23.96 27.13 27.92 31.87 35.82 39.76 43.71 47.65 52.54 57.11 63.41 79.17 3.273 22 72

12.52 14.06 15.56 15.89 19.18 20.00 24.04 28.05 32.05 36.03 40.00 44.92 49.51 55.84 71.64 3.273 44 144

11.45 11.95 13.11 16.38 17.84 19.29 19.61 22.81 23.61 27.60 31.57 35.53 39.49 43.45 48.35 52.92 59.24 75.02 3.294 34 112

15.17 15.65 16.77 19.96 21.39 22.82 23.14 26.31 27.10 31.05 35.00 38.96 42.90 46.85 51.74 56.31 62.61 78.38 3.333 24 80

14.12 14.61 15.73 18.94 20.38 21.81 22.13 25.31 26.10 30.06 34.02 37.98 41.92 45.87 50.76 55.34 61.65 77.41 3.462 26 90

11.58 12.08 13.24 16.52 17.98 19.43 19.75 22.95 23.76 27.74 31.71 35.68 39.64 43.60 48.50 53.07 59.39 75.17 3.500 32 112

12.78 14.32 15.82 16.16 19.45 20.27 24.32 28.34 32.34 36.32 40.29 45.21 49.80 56.13 71.94 3.600 40 144

15.31 15.80 16.91 20.10 21.54 22.96 23.28 26.45 27.25 31.20 35.15 39.11 43.05 47.00 51.89 56.46 62.77 78.53 3.636 22 80

11.71 12.21 13.38 16.65 18.11 19.56 19.89 23.10 23.90 27.88 31.86 35.83 39.79 43.75 48.64 53.22 59.54 75.32 3.733 30 112

14.26 14.75 15.87 19.08 20.52 21.95 22.27 25.45 26.25 30.21 34.17 38.13 42.07 46.02 50.92 55.49 61.80 77.57 3.750 24 90

12.90 14.45 15.96 16.29 19.59 20.41 24.46 28.48 32.48 36.46 40.44 45.36 49.95 56.28 72.09 3.789 38 144

11.84 12.35 13.51 16.79 18.25 19.70 20.03 23.24 24.04 28.03 32.00 35.97 39.93 43.89 48.79 53.37 59.69 75.47 4.000 28 112

9.42 13.03 14.57 16.09 16.42 19.72 20.54 24.60 28.62 32.62 36.61 40.59 45.50 50.10 56.43 72.24 4.000 36 144

14.40 14.88 16.01 19.22 20.66 22.10 22.42 25.60 26.40 30.36 34.32 38.27 42.22 46.17 51.07 55.64 61.95 77.72 4.091 22 90

9.53 13.16 14.70 16.22 16.55 19.86 20.68 24.74 28.76 32.76 36.75 40.73 45.65 50.25 56.58 72.39 4.235 34 144

11.97 12.48 13.64 16.93 18.39 19.84 20.17 23.38 24.18 28.17 32.15 36.12 40.08 44.04 48.94 53.52 59.84 75.63 4.308 26 112

9.65 13.28 14.83 16.35 16.68 19.99 20.81 24.88 28.90 32.91 36.89 40.88 45.80 50.39 56.73 72.54 4.500 32 144

12.10 12.61 13.77 17.06 18.53 19.98 20.30 23.52 24.32 28.32 32.29 36.27 40.23 44.19 49.09 53.67 59.99 75.78 4.667 24 112

9.77 13.41 14.96 16.48 16.81 20.13 20.95 25.01 29.04 33.05 37.04 41.02 45.94 50.54 56.88 72.69 4.800 30 144

12.23 12.74 13.90 17.20 18.67 20.12 20.44 23.66 24.47 28.46 32.44 36.41 40.38 44.34 49.24 53.82 60.14 75.93 5.091 22 112

9.89 13.53 15.09 16.61 16.94 20.26 21.08 25.15 29.18 33.19 37.18 41.17 46.09 50.69 57.02 72.84 5.143 28 144

10.00 13.66 15.21 16.74 17.07 20.39 21.22 25.29 29.32 33.33 37.32 41.31 46.23 50.83 57.17 72.99 5.538 26 144

10.12 13.78 15.34 16.87 17.20 20.53 21.35 25.43 29.46 33.47 37.47 41.45 46.38 50.98 57.32 73.14 6.000 24 144

8.80 10.24 13.91 15.47 17.00 17.33 20.66 21.49 25.56 29.60 33.62 37.61 41.60 46.53 51.13 57.47 73.29 6.545 22 144

8mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

The Driving Force in Power Transmission. Page 35

1.00 1.00 1.10 1.10 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

*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.

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

966-14MGT

P.L 38.031

69 teeth

1190-14MGT

P.L 46.850

85 teeth

1400-14MGT

P.L 55.118

100 teeth

1610-14MGT

P.L 63.386

115 teeth

1778-14MGT

P.L 70.000

127 teeth

1890-14MGT

P.L 74.409

135 teeth

2100-14MGT

P.L 82.677

150 teeth

2310-14MGT

P.L 90.945

165 teeth

2450-14MGT

P.L 96.457

175 teeth

2590-14MGT

P.L 101.968

185 teeth

28 4.912 28 4.912 1.000 11.30 15.71 19.84 23.98 27.28 29.49 33.62 37.75 40.51 43.27

29 5.088 29 5.088 1.000 11.02 15.43 19.57 23.70 27.01 29.21 33.35 37.48 40.24 42.99

30 5.263 30 5.263 1.000 10.75 15.16 19.29 23.43 26.73 28.94 33.07 37.20 39.96 42.72

32 5.614 32 5.614 1.000 10.20 14.61 18.74 22.88 26.18 28.39 32.52 36.65 39.41 42.17

34 5.965 34 5.965 1.000 9.65 14.06 18.19 22.33 25.63 27.84 31.97 36.10 38.86 41.62

36 6.316 36 6.316 1.000 9.09 13.50 17.64 21.77 25.08 27.28 31.42 35.55 38.31 41.06

38 6.667 38 6.667 1.000 8.54 12.95 17.09 21.22 24.53 26.73 30.87 35.00 37.76 40.51

40 7.018 40 7.018 1.000 7.99 12.40 16.54 20.67 23.98 26.18 30.32 34.45 37.21 39.96

44 7.720 44 7.720 1.000 11.30 15.43 19.57 22.87 25.08 29.21 33.34 36.10 38.86

48 8.421 48 8.421 1.000 10.20 14.33 18.47 21.77 23.98 28.11 32.24 35.00 37.76

52 9.123 52 9.123 1.000 13.23 17.36 20.67 22.87 27.01 31.14 33.90 36.65

56 9.825 56 9.825 1.000 12.13 16.26 19.57 21.77 25.91 30.04 32.80 35.55

60 10.527 60 10.527 1.000 15.16 18.46 20.67 24.80 28.93 31.69 34.45

64 11.229 64 11.229 1.000 14.06 17.36 19.57 23.70 27.83 30.59 33.35

68 11.930 68 11.930 1.000 12.96 16.26 18.47 22.60 26.73 29.49 32.25

72 12.632 72 12.632 1.000 15.16 17.36 21.50 25.63 28.39 31.14

80 14.036 80 14.036 1.000 15.16 19.29 23.42 26.18 28.94

29 5.088 30 5.263 1.034 10.88 15.30 19.43 23.57 26.87 29.08 33.21 37.34 40.10 42.86

28 4.912 29 5.088 1.036 11.16 15.57 19.71 23.84 27.15 29.35 33.49 37.62 40.38 43.13

38 6.667 40 7.018 1.053 8.26 12.68 16.81 20.95 24.25 26.46 30.59 34.72 37.48 40.24

36 6.316 38 6.667 1.056 8.82 13.23 17.36 21.50 24.80 27.01 31.14 35.27 38.03 40.79

34 5.965 36 6.316 1.059 9.37 13.78 17.91 22.05 25.35 27.56 31.69 35.82 38.58 41.34

68 11.930 72 12.632 1.059 15.71 17.91 22.05 26.18 28.94 31.69

32 5.614 34 5.965 1.063 9.92 14.33 18.47 22.60 25.91 28.11 32.25 36.38 39.14 41.89

64 11.229 68 11.930 1.063 13.50 16.81 19.01 23.15 27.28 30.04 32.79

30 5.263 32 5.614 1.067 10.47 14.88 19.02 23.15 26.46 28.66 32.80 36.93 39.69 42.44

60 10.527 64 11.229 1.067 14.60 17.91 20.11 24.25 28.38 31.14 33.90

28 4.912 30 5.263 1.071 11.02 15.43 19.57 23.70 27.01 29.21 33.35 37.48 40.24 42.99

56 9.825 60 10.527 1.071 11.57 15.71 19.01 21.22 25.35 29.48 32.24 35.00

52 9.123 56 9.825 1.077 12.67 16.81 20.12 22.32 26.46 30.59 33.35 36.10

48 8.421 52 9.123 1.083 9.64 13.78 17.91 21.22 23.42 27.56 31.69 34.45 37.20

44 7.720 48 8.421 1.091 10.74 14.88 19.01 22.32 24.53 28.66 32.79 35.55 38.31

40 7.018 44 7.720 1.100 11.84 15.98 20.12 23.42 25.63 29.76 33.89 36.65 39.41

29 5.088 32 5.614 1.103 10.61 15.02 19.15 23.29 26.59 28.80 32.93 37.06 39.82 42.58

36 6.316 40 7.018 1.111 8.54 12.95 17.08 21.22 24.52 26.73 30.87 35.00 37.76 40.51

72 12.632 80 14.036 1.111 14.04 16.24 20.38 24.51 27.28 30.03

34 5.965 38 6.667 1.118 9.09 13.50 17.64 21.77 25.08 27.28 31.42 35.55 38.31 41.06

32 5.614 36 6.316 1.125 9.64 14.05 18.19 22.32 25.63 27.83 31.97 36.10 38.86 41.61

64 11.229 72 12.632 1.125 12.94 16.24 18.45 22.59 26.72 29.48 32.24

80 14.036 90 15.790 1.125 17.89 22.03 24.79 27.55

30 5.263 34 5.965 1.133 10.19 14.60 18.74 22.87 26.18 28.38 32.52 36.65 39.41 42.17

60 10.527 68 11.930 1.133 14.04 17.35 19.55 23.69 27.82 30.58 33.34

28 4.912 32 5.614 1.143 10.74 15.15 19.29 23.43 26.73 28.94 33.07 37.20 39.96 42.72

56 9.825 64 11.229 1.143 15.14 18.45 20.66 24.79 28.93 31.69 34.44

52 9.123 60 10.527 1.154 12.11 16.25 19.55 21.76 25.90 30.03 32.79 35.54

38 6.667 44 7.720 1.158 12.11 16.25 20.39 23.69 25.90 30.04 34.17 36.93 39.68

48 8.421 56 9.825 1.167 13.21 17.35 20.66 22.86 27.00 31.13 33.89 36.65

29 5.088 34 5.965 1.172 10.32 14.74 18.87 23.01 26.32 28.52 32.66 36.79 39.55 42.30

34 5.965 40 7.018 1.176 8.80 13.22 17.36 21.49 24.80 27.00 31.14 35.27 38.03 40.78

68 11.930 80 14.036 1.176 14.57 16.78 20.92 25.05 27.82 30.57

44 7.720 52 9.123 1.182 10.17 14.31 18.45 21.76 23.97 28.10 32.23 34.99 37.75

32 5.614 38 6.667 1.188 9.35 13.77 17.91 22.04 25.35 27.55 31.69 35.82 38.58 41.34

30 5.263 36 6.316 1.200 9.91 14.32 18.46 22.59 25.90 28.11 32.24 36.37 39.13 41.89

40 7.018 48 8.421 1.200 11.28 15.42 19.56 22.86 25.07 29.21 33.34 36.10 38.85

60 10.527 72 12.632 1.200 13.46 16.78 18.99 23.13 27.26 30.02 32.78

28 4.912 34 5.965 1.214 10.46 14.87 19.01 23.15 26.45 28.66 32.79 36.92 39.68 42.44

56 9.825 68 11.930 1.214 14.57 17.88 20.09 24.23 28.36 31.13 33.88

36 6.316 44 7.720 1.222 7.96 12.38 16.52 20.66 23.97 26.17 30.31 34.44 37.20 39.95

52 9.123 64 11.229 1.231 11.53 15.68 18.99 21.19 25.33 29.47 32.23 34.98

29 5.088 36 6.316 1.241 10.04 14.46 18.59 22.73 26.04 28.24 32.38 36.51 39.27 42.02

32 5.614 40 7.018 1.250 9.07 13.49 17.62 21.76 25.07 27.27 31.41 35.54 38.30 41.06

48 8.421 60 10.527 1.250 12.63 16.78 20.09 22.30 26.44 30.57 33.33 36.09

64 11.229 80 14.036 1.250 15.09 17.30 21.45 25.59 28.35 31.11

72 12.632 90 15.790 1.250 14.80 18.95 23.09 25.86 28.62

14mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Page 36 The Gates Rubber Company

Length Factor* 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.

Center Distance, Inches

Speed

Ratio

Sprocket Combinations

DriveR DriveN

2800-14MGT

P.L 110.236

200 teeth

3150-14MGT

P.L 124.016

225 teeth

3360-14MGT

P.L 132.283

240 teeth

3500-14MGT

P.L 137.795

250 teeth

3850-14MGT

P.L 151.575

275 teeth

4326-14MGT

P.L 170.315

309 teeth

4578-14MGT

P.L 180.236

327 teeth

4956-14MGT

P.L 195.118

354 teeth

5320-14MGT

P.L 209.449

380 teeth

5740-14MGT

P.L 225.984

410 teeth

6160-14MGT

P.L 242.520

440 teeth

6860-14MGT

P.L 270.079

490 teeth

No. of

grooves No. of

grooves

47.40 54.29 58.42 61.18 68.07 77.44 82.40 89.84 97.01 105.27 113.54 127.32 1.000 28 28

47.13 54.02 58.15 60.91 67.79 77.16 82.13 89.57 96.73 105.00 113.27 127.05 1.000 29 29

46.85 53.74 57.87 60.63 67.52 76.89 81.85 89.29 96.46 104.72 112.99 126.77 1.000 30 30

46.30 53.19 57.32 60.08 66.97 76.34 81.30 88.74 95.91 104.17 112.44 126.22 1.000 32 32

45.75 52.64 56.77 59.53 66.42 75.79 80.75 88.19 95.36 103.62 111.89 125.67 1.000 34 34

45.20 52.09 56.22 58.98 65.86 75.23 80.20 87.64 94.80 103.07 111.34 125.12 1.000 36 36

44.65 51.54 55.67 58.43 65.31 74.68 79.65 87.09 94.25 102.52 110.79 124.57 1.000 38 38

44.10 50.99 55.12 57.88 64.76 74.13 79.10 86.54 93.70 101.97 110.24 124.02 1.000 40 40

42.99 49.88 54.01 56.77 63.66 73.03 77.99 85.43 92.60 100.86 109.13 122.91 1.000 44 44

41.89 48.78 52.91 55.67 62.56 71.93 76.89 84.33 91.50 99.76 108.03 121.81 1.000 48 48

40.79 47.68 51.81 54.57 61.45 70.82 75.79 83.23 90.39 98.66 106.93 120.71 1.000 52 52

39.69 46.58 50.71 53.47 60.35 69.72 74.69 82.13 89.29 97.56 105.83 119.61 1.000 56 56

38.58 45.47 49.60 52.36 59.25 68.62 73.58 81.02 88.19 96.45 104.72 118.50 1.000 60 60

37.48 44.37 48.50 51.26 58.15 67.52 72.48 79.92 87.09 95.35 103.62 117.40 1.000 64 64

36.38 43.27 47.40 50.16 57.05 66.42 71.38 78.82 85.99 94.25 102.52 116.30 1.000 68 68

35.28 42.17 46.30 49.06 55.94 65.31 70.28 77.72 84.88 93.15 101.42 115.20 1.000 72 72

33.07 39.96 44.09 46.85 53.74 63.11 68.07 75.51 82.68 90.94 99.21 112.99 1.000 80 80

46.99 53.88 58.01 60.77 67.66 77.03 81.99 89.43 96.60 104.86 113.13 126.91 1.034 29 30

47.27 54.16 58.29 61.05 67.93 77.30 82.27 89.71 96.87 105.14 113.41 127.19 1.036 28 29

44.37 51.26 55.39 58.15 65.04 74.41 79.37 86.81 93.98 102.24 110.51 124.29 1.053 38 40

44.92 51.81 55.94 58.70 65.59 74.96 79.92 87.36 94.53 102.79 111.06 124.84 1.056 36 38

45.47 52.36 56.49 59.25 66.14 75.51 80.47 87.91 95.08 103.34 111.61 125.39 1.059 34 36

35.83 42.72 46.85 49.61 56.49 65.86 70.83 78.27 85.43 93.70 101.97 115.75 1.059 68 72

46.03 52.92 57.05 59.81 66.69 76.06 81.03 88.47 95.63 103.90 112.17 125.95 1.063 32 34

36.93 43.82 47.95 50.71 57.59 66.97 71.93 79.37 86.54 94.80 103.07 116.85 1.063 64 68

46.58 53.47 57.60 60.36 67.24 76.61 81.58 89.02 96.18 104.45 112.72 126.50 1.067 30 32

38.03 44.92 49.05 51.81 58.70 68.07 73.03 80.47 87.64 95.90 104.17 117.95 1.067 60 64

47.13 54.02 58.15 60.91 67.79 77.16 82.13 89.57 96.73 105.00 113.27 127.05 1.071 28 30

39.13 46.02 50.15 52.91 59.80 69.17 74.13 81.57 88.74 97.00 105.27 119.06 1.071 56 60

40.24 47.13 51.26 54.02 60.90 70.27 75.24 82.68 89.84 98.11 106.38 120.16 1.077 52 56

41.34 48.23 52.36 55.12 62.00 71.38 76.34 83.78 90.95 99.21 107.48 121.26 1.083 48 52

42.44 49.33 53.46 56.22 63.11 72.48 77.44 84.88 92.05 100.31 108.58 122.36 1.091 44 48

43.54 50.43 54.56 57.32 64.21 73.58 78.54 85.98 93.15 101.41 109.68 123.46 1.100 40 44

46.71 53.60 57.73 60.49 67.38 76.75 81.71 89.15 96.32 104.58 112.85 126.63 1.103 29 32

44.65 51.54 55.67 58.43 65.31 74.68 79.65 87.09 94.25 102.52 110.79 124.57 1.111 36 40

34.17 41.06 45.19 47.95 54.84 64.21 69.17 76.61 83.78 92.04 100.31 114.09 1.111 72 80

45.20 52.09 56.22 58.98 65.86 75.23 80.20 87.64 94.80 103.07 111.34 125.12 1.118 34 38

45.75 52.64 56.77 59.53 66.41 75.78 80.75 88.19 95.35 103.62 111.89 125.67 1.125 32 36

36.37 43.26 47.39 50.15 57.04 66.41 71.38 78.82 85.98 94.25 102.52 116.30 1.125 64 72

31.68 38.57 42.71 45.47 52.35 61.72 66.69 74.13 81.29 89.56 97.83 111.61 1.125 80 90

46.30 53.19 57.32 60.08 66.97 76.34 81.30 88.74 95.91 104.17 112.44 126.22 1.133 30 34

37.48 44.37 48.50 51.26 58.14 67.51 72.48 79.92 87.08 95.35 103.62 117.40 1.133 60 68

46.85 53.74 57.87 60.63 67.52 76.89 81.85 89.29 96.46 104.72 112.99 126.77 1.143 28 32

38.58 45.47 49.60 52.36 59.25 68.62 73.58 81.02 88.19 96.45 104.72 118.50 1.143 56 64

39.68 46.57 50.70 53.46 60.35 69.72 74.68 82.12 89.29 97.55 105.82 119.60 1.154 52 60

43.82 50.71 54.84 57.60 64.48 73.85 78.82 86.26 93.42 101.69 109.96 123.74 1.158 38 44

40.78 47.67 51.80 54.57 61.45 70.82 75.79 83.23 90.39 98.66 106.93 120.71 1.167 48 56

46.44 53.33 57.46 60.22 67.10 76.47 81.44 88.88 96.04 104.31 112.58 126.36 1.172 29 34

44.92 51.81 55.94 58.70 65.59 74.96 79.92 87.36 94.53 102.79 111.06 124.84 1.176 34 40

34.71 41.60 45.73 48.49 55.38 64.75 69.72 77.16 84.32 92.59 100.86 114.64 1.176 68 80

41.89 48.78 52.91 55.67 62.55 71.92 76.89 84.33 91.49 99.76 108.03 121.81 1.182 44 52

45.47 52.36 56.49 59.25 66.14 75.51 80.47 87.91 95.08 103.34 111.61 125.39 1.188 32 38

46.02 52.91 57.04 59.80 66.69 76.06 81.02 88.46 95.63 103.89 112.16 125.94 1.200 30 36

42.99 49.88 54.01 56.77 63.66 73.03 77.99 85.43 92.60 100.86 109.13 122.91 1.200 40 48

36.92 43.81 47.94 50.70 57.59 66.96 71.92 79.36 86.53 94.80 103.07 116.85 1.200 60 72

46.57 53.46 57.59 60.35 67.24 76.61 81.58 89.02 96.18 104.45 112.72 126.50 1.214 28 34

38.02 44.91 49.04 51.80 58.69 68.06 73.03 80.47 87.63 95.90 104.17 117.95 1.214 56 68

44.09 50.98 55.11 57.87 64.76 74.13 79.09 86.53 93.70 101.96 110.23 124.01 1.222 36 44

39.12 46.01 50.14 52.91 59.79 69.16 74.13 81.57 88.73 97.00 105.27 119.05 1.231 52 64

46.16 53.05 57.18 59.94 66.83 76.20 81.16 88.60 95.77 104.03 112.30 126.08 1.241 29 36

45.19 52.08 56.21 58.97 65.86 75.23 80.20 87.64 94.80 103.07 111.34 125.12 1.250 32 40

40.22 47.12 51.25 54.01 60.89 70.27 75.23 82.67 89.84 98.10 106.37 120.15 1.250 48 60

35.25 42.14 46.28 49.04 55.92 65.30 70.26 77.70 84.87 93.14 101.41 115.19 1.250 64 80

32.76 39.66 43.79 46.55 53.44 62.81 67.78 75.22 82.39 90.65 98.92 112.71 1.250 72 90

14mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

1.05 1.05 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10

*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.

The Driving Force in Power Transmission. Page 37

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

966-14MGT

P.L 38.031

69 teeth

1190-14MGT

P.L 46.850

85 teeth

1400-14MGT

P.L 55.118

100 teeth

1610-14MGT

P.L 63.386

115 teeth

1778-14MGT

P.L 70.000

127 teeth

1890-14MGT

P.L 74.409

135 teeth

2100-14MGT

P.L 82.677

150 teeth

2310-14MGT

P.L 90.945

165 teeth

2450-14MGT

P.L 96.457

175 teeth

2590-14MGT

P.L 101.968

185 teeth

38 6.667 48 8.421 1.263 11.54 15.69 19.83 23.13 25.34 29.48 33.61 36.37 39.13

30 5.263 38 6.667 1.267 9.62 14.04 18.18 22.31 25.62 27.83 31.96 36.09 38.85 41.61

44 7.720 56 9.825 1.273 9.59 13.74 17.88 21.19 23.40 27.54 31.67 34.43 37.19

28 4.912 36 6.316 1.286 10.17 14.59 18.73 22.87 26.17 28.38 32.51 36.64 39.41 42.16

56 9.825 72 12.632 1.286 13.99 17.31 19.52 23.66 27.80 30.56 33.32

34 5.965 44 7.720 1.294 8.22 12.65 16.79 20.93 24.24 26.44 30.58 34.71 37.47 40.23

40 7.018 52 9.123 1.300 10.70 14.85 18.99 22.30 24.51 28.64 32.78 35.54 38.29

52 9.123 68 11.930 1.308 15.09 18.41 20.62 24.77 28.90 31.66 34.42

29 5.088 38 6.667 1.310 9.75 14.17 18.31 22.45 25.76 27.96 32.10 36.23 38.99 41.75

68 11.930 90 15.790 1.324 15.31 19.47 23.62 26.39 29.15

30 5.263 40 7.018 1.333 9.33 13.75 17.89 22.03 25.34 27.55 31.68 35.81 38.57 41.33

36 6.316 48 8.421 1.333 11.80 15.95 20.09 23.40 25.61 29.75 33.88 36.64 39.40

48 8.421 64 11.229 1.333 12.05 16.20 19.52 21.73 25.87 30.00 32.77 35.52

60 10.527 80 14.036 1.333 15.61 17.83 21.98 26.12 28.88 31.64

28 4.912 38 6.667 1.357 9.88 14.30 18.45 22.58 25.89 28.10 32.23 36.37 39.13 41.88

44 7.720 60 10.527 1.364 13.15 17.31 20.62 22.83 26.97 31.11 33.87 36.63

38 6.667 52 9.123 1.368 10.95 15.11 19.25 22.57 24.77 28.91 33.05 35.81 38.56

32 5.614 44 7.720 1.375 8.48 12.91 17.05 21.20 24.50 26.71 30.85 34.98 37.74 40.50

29 5.088 40 7.018 1.379 9.46 13.88 18.03 22.17 25.47 27.68 31.82 35.95 38.71 41.47

52 9.123 72 12.632 1.385 14.50 17.83 20.04 24.19 28.33 31.09 33.85

40 7.018 56 9.825 1.400 10.10 14.26 18.41 21.73 23.94 28.08 32.21 34.97 37.73

80 14.036 112 19.650 1.400 18.80 21.59 24.37

64 11.229 90 15.790 1.406 15.82 19.99 24.14 26.91 29.68

34 5.965 48 8.421 1.412 12.06 16.21 20.36 23.67 25.88 30.02 34.15 36.91 39.67

48 8.421 68 11.930 1.417 11.44 15.61 18.94 21.15 25.30 29.43 32.20 34.96

28 4.912 40 7.018 1.429 9.59 14.02 18.16 22.30 25.61 27.82 31.95 36.08 38.85 41.60

56 9.825 80 14.036 1.429 12.78 16.12 18.34 22.50 26.65 29.41 32.18

36 6.316 52 9.123 1.444 11.21 15.37 19.52 22.83 25.04 29.18 33.31 36.08 38.83

44 7.720 64 11.229 1.455 12.55 16.72 20.04 22.25 26.40 30.54 33.30 36.06

30 5.263 44 7.720 1.467 8.73 13.17 17.32 21.46 24.77 26.98 31.12 35.25 38.01 40.77

38 6.667 56 9.825 1.474 10.35 14.52 18.68 21.99 24.20 28.34 32.48 35.24 38.00

32 5.614 48 8.421 1.500 7.87 12.32 16.48 20.62 23.94 26.14 30.28 34.42 37.18 39.94

40 7.018 60 10.527 1.500 9.48 13.67 17.83 21.15 23.36 27.50 31.64 34.41 37.16

48 8.421 72 12.632 1.500 15.01 18.34 20.56 24.72 28.86 31.62 34.39

60 10.527 90 15.790 1.500 14.08 16.32 20.50 24.66 27.43 30.20

29 5.088 44 7.720 1.517 8.86 13.30 17.45 21.60 24.91 27.11 31.25 35.39 38.15 40.90

34 5.965 52 9.123 1.529 11.47 15.63 19.78 23.10 25.31 29.45 33.58 36.35 39.10

52 9.123 80 14.036 1.538 13.28 16.63 18.86 23.02 27.17 29.94 32.70

44 7.720 68 11.930 1.545 11.94 16.12 19.45 21.67 25.82 29.96 32.73 35.49

36 6.316 56 9.825 1.556 10.60 14.78 18.94 22.25 24.46 28.61 32.75 35.51 38.27

72 12.632 112 19.650 1.556 19.80 22.60 25.39

28 4.912 44 7.720 1.571 8.98 13.43 17.58 21.73 25.04 27.25 31.39 35.52 38.28 41.04

38 6.667 60 10.527 1.579 9.73 13.92 18.09 21.41 23.62 27.77 31.91 34.67 37.43

30 5.263 48 8.421 1.600 8.11 12.58 16.74 20.89 24.20 26.41 30.55 34.69 37.45 40.21

40 7.018 64 11.229 1.600 13.06 17.24 20.56 22.78 26.93 31.07 33.83 36.59

56 9.825 90 15.790 1.607 14.58 16.82 21.01 25.18 27.95 30.72

32 5.614 52 9.123 1.625 11.72 15.89 20.04 23.36 25.57 29.71 33.85 36.61 39.37

44 7.720 72 12.632 1.636 11.31 15.52 18.86 21.08 25.24 29.38 32.15 34.91

34 5.965 56 9.825 1.647 10.85 15.03 19.20 22.52 24.73 28.87 33.01 35.78 38.54

68 11.930 112 19.650 1.647 20.30 23.10 25.89

29 5.088 48 8.421 1.655 8.24 12.71 16.87 21.02 24.33 26.54 30.68 34.82 37.58 40.34

36 6.316 60 10.527 1.667 9.97 14.17 18.35 21.67 23.88 28.03 32.17 34.94 37.70

48 8.421 80 14.036 1.667 13.77 17.13 19.36 23.53 27.69 30.46 33.23

38 6.667 64 11.229 1.684 13.31 17.49 20.82 23.04 27.19 31.33 34.10 36.86

40 7.018 68 11.930 1.700 12.43 16.63 19.97 22.19 26.34 30.49 33.26 36.02

28 4.912 48 8.421 1.714 8.36 12.83 17.00 21.15 24.47 26.68 30.82 34.95 37.72 40.48

52 9.123 90 15.790 1.731 15.06 17.32 21.51 25.69 28.47 31.24

30 5.263 52 9.123 1.733 11.97 16.15 20.30 23.62 25.83 29.98 34.12 36.88 39.64

32 5.614 56 9.825 1.750 11.10 15.29 19.46 22.78 24.99 29.14 33.28 36.04 38.80

64 11.229 112 19.650 1.750 16.55 20.79 23.60 26.40

34 5.965 60 10.527 1.765 10.22 14.43 18.60 21.93 24.14 28.30 32.44 35.20 37.96

36 6.316 64 11.229 1.778 13.56 17.74 21.08 23.30 27.45 31.59 34.36 37.12

38 6.667 68 11.930 1.789 12.68 16.88 20.22 22.44 26.60 30.75 33.52 36.28

29 5.088 52 9.123 1.793 12.10 16.27 20.43 23.75 25.97 30.11 34.25 37.01 39.77

14mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Page 38 The Gates Rubber Company

Length Factor* 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.

Center Distance, Inches

Speed

Ratio

Sprocket Combinations

DriveR DriveN

2800-14MGT

P.L 110.236

200 teeth

3150-14MGT

P.L 124.016

225 teeth

3360-14MGT

P.L 132.283

240 teeth

3500-14MGT

P.L 137.795

250 teeth

3850-14MGT

P.L 151.575

275 teeth

4326-14MGT

P.L 170.315

309 teeth

4578-14MGT

P.L 180.236

327 teeth

4956-14MGT

P.L 195.118

354 teeth

5320-14MGT

P.L 209.449

380 teeth

5740-14MGT

P.L 225.984

410 teeth

6160-14MGT

P.L 242.520

440 teeth

6860-14MGT

P.L 270.079

490 teeth

No. of

grooves No. of

grooves

43.26 50.15 54.28 57.04 63.93 73.30 78.26 85.71 92.87 101.14 109.41 123.19 1.263 38 48

45.74 52.64 56.77 59.53 66.41 75.78 80.75 88.19 95.35 103.62 111.89 125.67 1.267 30 38

41.33 48.22 52.35 55.11 62.00 71.37 76.33 83.77 90.94 99.20 107.48 121.26 1.273 44 56

46.30 53.19 57.32 60.08 66.96 76.33 81.30 88.74 95.90 104.17 112.44 126.22 1.286 28 36

37.46 44.35 48.48 51.24 58.13 67.50 72.47 79.91 87.08 95.34 103.61 117.39 1.286 56 72

44.36 51.25 55.38 58.15 65.03 74.40 79.37 86.81 93.97 102.24 110.51 124.29 1.294 34 44

42.43 49.32 53.45 56.21 63.10 72.47 77.44 84.88 92.04 100.31 108.58 122.36 1.300 40 52

38.56 45.45 49.59 52.35 59.23 68.61 73.57 81.01 88.18 96.44 104.72 118.50 1.308 52 68

45.88 52.77 56.90 59.66 66.55 75.92 80.88 88.32 95.49 103.75 112.02 125.81 1.310 29 38

33.29 40.19 44.33 47.09 53.98 63.35 68.32 75.76 82.93 91.20 99.47 113.25 1.324 68 90

45.47 52.36 56.49 59.25 66.13 75.50 80.47 87.91 95.08 103.34 111.61 125.39 1.333 30 40

43.53 50.42 54.56 57.32 64.20 73.57 78.54 85.98 93.14 101.41 109.68 123.46 1.333 36 48

39.66 46.56 50.69 53.45 60.34 69.71 74.67 82.11 89.28 97.55 105.82 119.60 1.333 48 64

35.79 42.68 46.82 49.58 56.47 65.84 70.81 78.25 85.42 93.68 101.95 115.73 1.333 60 80

46.02 52.91 57.04 59.80 66.69 76.06 81.02 88.46 95.63 103.89 112.16 125.94 1.357 28 38

40.76 47.66 51.79 54.55 61.44 70.81 75.78 83.22 90.38 98.65 106.92 120.70 1.364 44 60

42.70 49.59 53.72 56.49 63.37 72.74 77.71 85.15 92.32 100.58 108.85 122.63 1.368 38 52

44.64 51.53 55.66 58.42 65.30 74.68 79.64 87.08 94.25 102.51 110.78 124.56 1.375 32 44

45.60 52.49 56.62 59.38 66.27 75.64 80.61 88.05 95.21 103.48 111.75 125.53 1.379 29 40

37.99 44.89 49.02 51.78 58.67 68.05 73.01 80.45 87.62 95.89 104.16 117.94 1.385 52 72

41.87 48.76 52.89 55.65 62.54 71.91 76.88 84.32 91.49 99.75 108.02 121.80 1.400 40 56

28.52 35.44 39.58 42.35 49.25 58.63 63.60 71.05 78.22 86.49 94.76 108.55 1.400 80 112

33.82 40.73 44.86 47.62 54.52 63.89 68.86 76.31 83.47 91.74 100.01 113.80 1.406 64 90

43.80 50.70 54.83 57.59 64.47 73.85 78.81 86.25 93.42 101.68 109.95 123.74 1.412 34 48

39.10 45.99 50.13 52.89 59.78 69.15 74.12 81.56 88.72 96.99 105.26 119.04 1.417 48 68

45.74 52.63 56.76 59.52 66.41 75.78 80.74 88.18 95.35 103.61 111.89 125.67 1.429 28 40

36.32 43.22 47.35 50.12 57.01 66.38 71.35 78.79 85.96 94.23 102.50 116.28 1.429 56 80

42.97 49.86 54.00 56.76 63.64 73.02 77.98 85.42 92.59 100.85 109.13 122.91 1.444 36 52

40.20 47.09 51.23 53.99 60.88 70.25 75.22 82.66 89.83 98.09 106.36 120.14 1.455 44 64

44.91 51.80 55.93 58.69 65.58 74.95 79.91 87.35 94.52 102.79 111.06 124.84 1.467 30 44

42.14 49.03 53.16 55.92 62.81 72.18 77.15 84.59 91.76 100.02 108.30 122.08 1.474 38 56

44.07 50.97 55.10 57.86 64.75 74.12 79.08 86.53 93.69 101.96 110.23 124.01 1.500 32 48

41.30 48.20 52.33 55.09 61.98 71.35 76.32 83.76 90.93 99.19 107.47 121.25 1.500 40 60

38.53 45.43 49.56 52.32 59.21 68.59 73.55 81.00 88.16 96.43 104.70 118.49 1.500 48 72

34.35 41.26 45.39 48.16 55.05 64.43 69.40 76.85 84.01 92.28 100.56 114.34 1.500 60 90

45.04 51.93 56.07 58.83 65.71 75.08 80.05 87.49 94.66 102.92 111.19 124.97 1.517 29 44

43.24 50.14 54.27 57.03 63.92 73.29 78.25 85.70 92.86 101.13 109.40 123.18 1.529 34 52

36.85 43.75 47.89 50.65 57.54 66.92 71.89 79.33 86.50 94.77 103.04 116.83 1.538 52 80

39.63 46.53 50.66 53.43 60.32 69.69 74.66 82.10 89.27 97.53 105.81 119.59 1.545 44 68

42.41 49.30 53.43 56.20 63.08 72.46 77.42 84.86 92.03 100.30 108.57 122.35 1.556 36 56

29.56 36.49 40.63 43.40 50.31 59.70 64.67 72.12 79.29 87.57 95.84 109.63 1.556 72 112

45.18 52.07 56.20 58.96 65.85 75.22 80.19 87.63 94.79 103.06 111.33 125.11 1.571 28 44

41.57 48.47 52.60 55.36 62.25 71.62 76.59 84.03 91.20 99.47 107.74 121.52 1.579 38 60

44.34 51.24 55.37 58.13 65.02 74.39 79.36 86.80 93.96 102.23 110.50 124.28 1.600 30 48

40.73 47.63 51.77 54.53 61.42 70.79 75.76 83.20 90.37 98.64 106.91 120.69 1.600 40 64

34.87 41.79 45.93 48.69 55.59 64.97 69.94 77.38 84.55 92.82 101.10 114.88 1.607 56 90

43.51 50.41 54.54 57.30 64.19 73.56 78.53 85.97 93.13 101.40 109.67 123.45 1.625 32 52

39.06 45.96 50.10 52.86 59.75 69.13 74.09 81.54 88.71 96.97 105.25 119.03 1.636 44 72

42.67 49.57 53.70 56.47 63.35 72.73 77.69 85.14 92.30 100.57 108.84 122.62 1.647 34 56

30.07 37.01 41.16 43.93 50.84 60.23 65.20 72.65 79.83 88.10 96.38 110.17 1.647 68 112

44.48 51.37 55.51 58.27 65.15 74.53 79.49 86.93 94.10 102.37 110.64 124.42 1.655 29 48

41.84 48.74 52.87 55.63 62.52 71.90 76.86 84.31 91.47 99.74 108.01 121.79 1.667 36 60

37.38 44.28 48.42 51.19 58.08 67.46 72.43 79.87 87.04 95.31 103.58 117.37 1.667 48 80

41.00 47.90 52.03 54.80 61.69 71.06 76.03 83.47 90.64 98.91 107.18 120.96 1.684 38 64

40.16 47.06 51.20 53.96 60.85 70.23 75.20 82.64 89.81 98.08 106.35 120.13 1.700 40 68

44.61 51.51 55.64 58.40 65.29 74.66 79.63 87.07 94.24 102.50 110.77 124.56 1.714 28 48

35.40 42.31 46.45 49.22 56.12 65.50 70.47 77.92 85.09 93.36 101.64 115.43 1.731 52 90

43.78 50.67 54.81 57.57 64.46 73.83 78.80 86.24 93.41 101.67 109.94 123.73 1.733 30 52

42.94 49.84 53.97 56.74 63.62 73.00 77.97 85.41 92.58 100.84 109.11 122.90 1.750 32 56

30.58 37.52 41.67 44.45 51.36 60.76 65.73 73.19 80.36 88.64 96.92 110.71 1.750 64 112

42.11 49.00 53.14 55.90 62.79 72.17 77.13 84.58 91.74 100.01 108.28 122.07 1.765 34 60

41.27 48.17 52.30 55.07 61.96 71.33 76.30 83.74 90.91 99.18 107.45 121.24 1.778 36 64

40.43 47.33 51.47 54.23 61.12 70.50 75.47 82.91 90.08 98.35 106.62 120.41 1.789 38 68

43.91 50.81 54.94 57.70 64.59 73.97 78.93 86.38 93.54 101.81 110.08 123.86 1.793 29 52

14mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

1.05 1.05 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10

*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.

The Driving Force in Power Transmission. Page 39

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

966-14MGT

P.L 38.031

69 teeth

1190-14MGT

P.L 46.850

85 teeth

1400-14MGT

P.L 55.118

100 teeth

1610-14MGT

P.L 63.386

115 teeth

1778-14MGT

P.L 70.000

127 teeth

1890-14MGT

P.L 74.409

135 teeth

2100-14MGT

P.L 82.677

150 teeth

2310-14MGT

P.L 90.945

165 teeth

2450-14MGT

P.L 96.457

175 teeth

2590-14MGT

P.L 101.968

185 teeth

40 7.018 72 12.632 1.800 11.79 16.02 19.36 21.59 25.75 29.91 32.68 35.44

80 14.036 144 25.264 1.800

44 7.720 80 14.036 1.818 14.26 17.63 19.87 24.05 28.21 30.98 33.75

28 4.912 52 9.123 1.857 7.70 12.22 16.40 20.56 23.88 26.10 30.24 34.38 37.15 39.91

30 5.263 56 9.825 1.867 11.34 15.54 19.71 23.04 25.25 29.40 33.54 36.31 39.07

60 10.527 112 19.650 1.867 17.02 21.28 24.10 26.90

32 5.614 60 10.527 1.875 10.46 14.68 18.86 22.19 24.40 28.56 32.70 35.47 38.23

48 8.421 90 15.790 1.875 15.55 17.81 22.02 26.20 28.98 31.76

34 5.965 64 11.229 1.882 9.56 13.80 18.00 21.33 23.55 27.71 31.86 34.63 37.39

36 6.316 68 11.930 1.889 12.92 17.13 20.48 22.70 26.86 31.01 33.78 36.55

38 6.667 72 12.632 1.895 12.03 16.26 19.62 21.84 26.01 30.17 32.94 35.70

29 5.088 56 9.825 1.931 11.47 15.67 19.84 23.17 25.38 29.53 33.67 36.44 39.20

28 4.912 56 9.825 2.000 11.59 15.79 19.97 23.30 25.51 29.66 33.81 36.57 39.33

30 5.263 60 10.527 2.000 10.70 14.93 19.11 22.44 24.66 28.82 32.96 35.73 38.49

32 5.614 64 11.229 2.000 9.79 14.05 18.25 21.59 23.81 27.97 32.12 34.89 37.65

34 5.965 68 11.930 2.000 13.17 17.38 20.73 22.96 27.12 31.27 34.04 36.81

36 6.316 72 12.632 2.000 12.27 16.51 19.87 22.10 26.27 30.42 33.20 35.96

40 7.018 80 14.036 2.000 14.74 18.12 20.37 24.55 28.72 31.50 34.27

56 9.825 112 19.650 2.000 17.50 21.76 24.59 27.39

72 12.632 144 25.264 2.000 20.23

44 7.720 90 15.790 2.045 12.58 16.02 18.29 22.51 26.70 29.49 32.27

29 5.088 60 10.527 2.069 10.82 15.05 19.24 22.57 24.79 28.95 33.09 35.86 38.63

80 14.036 168 29.475 2.100

38 6.667 80 14.036 2.105 14.98 18.37 20.61 24.81 28.98 31.76 34.53

34 5.965 72 12.632 2.118 12.51 16.76 20.12 22.35 26.52 30.68 33.46 36.23

68 11.930 144 25.264 2.118 20.69

32 5.614 68 11.930 2.125 13.41 17.63 20.98 23.21 27.38 31.53 34.31 37.07

30 5.263 64 11.229 2.133 10.03 14.29 18.50 21.84 24.07 28.23 32.38 35.15 37.91

28 4.912 60 10.527 2.143 10.94 15.17 19.37 22.70 24.92 29.08 33.23 35.99 38.76

52 9.123 112 19.650 2.154 17.97 22.25 25.08 27.89

29 5.088 64 11.229 2.207 10.14 14.42 18.63 21.97 24.19 28.36 32.51 35.28 38.05

36 6.316 80 14.036 2.222 10.88 15.22 18.61 20.86 25.06 29.23 32.01 34.79

32 5.614 72 12.632 2.250 12.74 17.00 20.37 22.60 26.78 30.94 33.72 36.49

40 7.018 90 15.790 2.250 13.04 16.50 18.78 23.01 27.20 30.00 32.78

64 11.229 144 25.264 2.250 21.15

30 5.263 68 11.930 2.267 9.32 13.65 17.88 21.23 23.46 27.64 31.79 34.57 37.33

28 4.912 64 11.229 2.286 10.26 14.54 18.75 22.10 24.32 28.49 32.64 35.41 38.18

48 8.421 112 19.650 2.333 18.43 22.73 25.56 28.38

72 12.632 168 29.475 2.333

29 5.088 68 11.930 2.345 9.43 13.77 18.00 21.36 23.59 27.76 31.92 34.70 37.46

34 5.965 80 14.036 2.353 11.11 15.46 18.86 21.11 25.31 29.48 32.27 35.04

38 6.667 90 15.790 2.368 13.27 16.74 19.02 23.25 27.45 30.25 33.03

30 5.263 72 12.632 2.400 12.98 17.25 20.62 22.85 27.03 31.20 33.98 36.75

60 10.527 144 25.264 2.400 18.64 21.61

80 14.036 192 33.686 2.400

28 4.912 68 11.930 2.429 9.54 13.89 18.13 21.49 23.72 27.89 32.05 34.83 37.59

68 11.930 168 29.475 2.471

29 5.088 72 12.632 2.483 13.10 17.37 20.74 22.98 27.16 31.33 34.10 36.87

32 5.614 80 14.036 2.500 11.34 15.69 19.10 21.36 25.56 29.74 32.52 35.30

36 6.316 90 15.790 2.500 13.49 16.97 19.26 23.50 27.70 30.50 33.29

44 7.720 112 19.650 2.545 14.46 18.89 23.20 26.05 28.87

28 4.912 72 12.632 2.571 13.21 17.49 20.86 23.10 27.29 31.45 34.23 37.00

56 9.825 144 25.264 2.571 19.09 22.06

64 11.229 168 29.475 2.625

34 5.965 90 15.790 2.647 13.72 17.21 19.50 23.74 27.95 30.75 33.54

30 5.263 80 14.036 2.667 11.56 15.93 19.34 21.60 25.81 29.99 32.78 35.56

72 12.632 192 33.686 2.667

29 5.088 80 14.036 2.759 11.67 16.05 19.46 21.72 25.93 30.12 32.91 35.68

52 9.123 144 25.264 2.769 19.53 22.51

40 7.018 112 19.650 2.800 14.90 19.36 23.68 26.53 29.36

60 10.527 168 29.475 2.800

32 5.614 90 15.790 2.813 13.95 17.44 19.73 23.99 28.20 31.00 33.79

68 11.930 192 33.686 2.824

28 4.912 80 14.036 2.857 11.78 16.17 19.58 21.85 26.06 30.24 33.03 35.81

14mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Page 40 The Gates Rubber Company

Length Factor* 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.

Center Distance, Inches

Speed

Ratio

Sprocket Combinations

DriveR DriveN

2800-14MGT

P.L 110.236

200 teeth

3150-14MGT

P.L 124.016

225 teeth

3360-14MGT

P.L 132.283

240 teeth

3500-14MGT

P.L 137.795

250 teeth

3850-14MGT

P.L 151.575

275 teeth

4326-14MGT

P.L 170.315

309 teeth

4578-14MGT

P.L 180.236

327 teeth

4956-14MGT

P.L 195.118

354 teeth

5320-14MGT

P.L 209.449

380 teeth

5740-14MGT

P.L 225.984

410 teeth

6160-14MGT

P.L 242.520

440 teeth

6860-14MGT

P.L 270.079

490 teeth

No. of

grooves No. of

grooves

39.59 46.49 50.63 53.39 60.29 69.67 74.63 82.08 89.25 97.52 105.79 119.57 1.800 40 72

23.58 30.63 34.82 37.61 44.56 54.00 58.99 66.46 73.64 81.93 90.22 104.02 1.800 80 144

37.90 44.81 48.95 51.72 58.61 67.99 72.96 80.41 87.58 95.85 104.12 117.91 1.818 44 80

44.05 50.94 55.08 57.84 64.73 74.10 79.07 86.51 93.68 101.95 110.22 124.00 1.857 28 52

43.21 50.11 54.24 57.00 63.89 73.27 78.24 85.68 92.85 101.11 109.39 123.17 1.867 30 56

31.08 38.04 42.19 44.97 51.88 61.28 66.26 73.72 80.90 89.17 97.45 111.25 1.867 60 112

42.37 49.27 53.41 56.17 63.06 72.44 77.40 84.85 92.02 100.28 108.56 122.34 1.875 32 60

35.92 42.84 46.98 49.75 56.65 66.04 71.01 78.46 85.63 93.90 102.18 115.97 1.875 48 90

41.53 48.43 52.57 55.33 62.23 71.60 76.57 84.01 91.18 99.45 107.72 121.51 1.882 34 64

40.69 47.60 51.73 54.50 61.39 70.77 75.74 83.18 90.35 98.62 106.89 120.68 1.889 36 68

39.85 46.76 50.90 53.66 60.55 69.93 74.90 82.35 89.52 97.79 106.06 119.85 1.895 38 72

43.34 50.24 54.38 57.14 64.03 73.40 78.37 85.81 92.98 101.25 109.52 123.30 1.931 29 56

43.48 50.38 54.51 57.27 64.16 73.54 78.51 85.95 93.12 101.39 109.66 123.44 2.000 28 56

42.64 49.54 53.67 56.44 63.33 72.71 77.67 85.12 92.29 100.55 108.83 122.61 2.000 30 60

41.80 48.70 52.84 55.60 62.49 71.87 76.84 84.28 91.45 99.72 108.00 121.78 2.000 32 64

40.96 47.86 52.00 54.76 61.66 71.04 76.01 83.45 90.62 98.89 107.16 120.95 2.000 34 68

40.11 47.02 51.16 53.93 60.82 70.20 75.17 82.62 89.79 98.06 106.33 120.12 2.000 36 72

38.42 45.34 49.48 52.25 59.15 68.53 73.50 80.95 88.12 96.39 104.67 118.45 2.000 40 80

31.59 38.55 42.71 45.48 52.40 61.81 66.79 74.25 81.43 89.71 97.99 111.78 2.000 56 112

24.54 31.61 35.82 38.62 45.58 55.03 60.02 67.50 74.69 82.99 91.28 105.09 2.000 72 144

36.43 43.36 47.50 50.27 57.18 66.57 71.54 78.99 86.17 94.44 102.72 116.51 2.045 44 90

42.77 49.67 53.81 56.57 63.46 72.84 77.81 85.25 92.42 100.69 108.96 122.75 2.069 29 60

26.71 31.00 33.84 40.88 50.39 55.41 62.91 70.13 78.44 86.74 100.57 2.100 80 168

38.68 45.60 49.74 52.51 59.41 68.80 73.77 81.22 88.39 96.66 104.94 118.72 2.105 38 80

40.38 47.29 51.43 54.19 61.09 70.47 75.44 82.89 90.06 98.33 106.60 120.39 2.118 34 72

25.01 32.10 36.31 39.12 46.09 55.54 60.54 68.02 75.22 83.51 91.81 105.62 2.118 68 144

41.22 48.13 52.27 55.03 61.93 71.31 76.28 83.72 90.89 99.16 107.43 121.22 2.125 32 68

42.06 48.97 53.10 55.87 62.76 72.14 77.11 84.55 91.72 99.99 108.27 122.05 2.133 30 64

42.90 49.81 53.94 56.70 63.60 72.98 77.94 85.39 92.56 100.83 109.10 122.88 2.143 28 60

32.09 39.06 43.22 46.00 52.92 62.33 67.32 74.78 81.96 90.24 98.52 112.32 2.154 52 112

42.19 49.10 53.24 56.00 62.89 72.27 77.24 84.69 91.86 100.13 108.40 122.19 2.207 29 64

38.94 45.86 50.01 52.77 59.68 69.06 74.03 81.48 88.66 96.93 105.20 118.99 2.222 36 80

40.64 47.55 51.69 54.46 61.35 70.74 75.71 83.16 90.33 98.60 106.87 120.66 2.250 32 72

36.95 43.88 48.03 50.80 57.70 67.10 72.07 79.53 86.70 94.98 103.25 117.04 2.250 40 90

25.49 32.59 36.81 39.62 46.59 56.05 61.05 68.54 75.74 84.04 92.33 106.15 2.250 64 144

41.48 48.39 52.53 55.30 62.19 71.57 76.54 83.99 91.16 99.43 107.71 121.49 2.267 30 68

42.32 49.23 53.37 56.13 63.03 72.41 77.38 84.82 91.99 100.26 108.54 122.32 2.286 28 64

32.59 39.56 43.73 46.51 53.44 62.86 67.84 75.30 82.49 90.77 99.05 112.85 2.333 48 112

27.65 31.95 34.81 41.86 51.39 56.42 63.93 71.16 79.47 87.78 101.62 2.333 72 168

41.61 48.52 52.66 55.43 62.33 71.71 76.68 84.12 91.29 99.57 107.84 121.63 2.345 29 68

39.20 46.12 50.27 53.04 59.94 69.33 74.30 81.75 88.92 97.20 105.47 119.26 2.353 34 80

37.20 44.14 48.29 51.06 57.97 67.36 72.34 79.79 86.97 95.24 103.52 117.31 2.368 38 90

40.90 47.81 51.95 54.72 61.62 71.00 75.98 83.42 90.60 98.87 107.14 120.93 2.400 30 72

25.96 33.08 37.30 40.11 47.10 56.56 61.57 69.06 76.26 84.56 92.86 106.68 2.400 60 144

26.84 29.78 36.99 46.64 51.70 59.26 66.52 74.86 83.20 97.06 2.400 80 192

41.74 48.66 52.80 55.56 62.46 71.84 76.81 84.26 91.43 99.70 107.98 121.76 2.429 28 68

28.11 32.43 35.28 42.35 51.89 56.92 64.44 71.67 79.99 88.30 102.14 2.471 68 168

41.03 47.94 52.09 54.85 61.75 71.14 76.11 83.56 90.73 99.00 107.28 121.06 2.483 29 72

39.46 46.39 50.53 53.30 60.20 69.59 74.57 82.02 89.19 97.47 105.74 119.53 2.500 32 80

37.46 44.40 48.55 51.32 58.23 67.63 72.60 80.06 87.23 95.51 103.79 117.58 2.500 36 90

33.08 40.07 44.24 47.02 53.96 63.38 68.36 75.83 83.01 91.30 99.58 113.39 2.545 44 112

41.16 48.08 52.22 54.99 61.89 71.27 76.24 83.69 90.86 99.14 107.41 121.20 2.571 28 72

26.43 33.56 37.79 40.61 47.60 57.07 62.08 69.57 76.78 85.08 93.38 107.20 2.571 56 144

21.15 28.57 32.90 35.76 42.84 52.39 57.42 64.95 72.18 80.50 88.82 102.67 2.625 64 168

37.71 44.65 48.81 51.58 58.49 67.89 72.87 80.32 87.50 95.78 104.06 117.85 2.647 34 90

39.72 46.65 50.79 53.56 60.47 69.86 74.83 82.29 89.46 97.73 106.01 119.80 2.667 30 80

27.74 30.70 37.94 47.61 52.69 60.26 67.52 75.88 84.22 98.10 2.667 72 192

39.85 46.78 50.92 53.69 60.60 69.99 74.97 82.42 89.59 97.87 106.15 119.94 2.759 29 80

26.89 34.04 38.28 41.10 48.10 57.58 62.59 70.09 77.30 85.60 93.91 107.73 2.769 52 144

33.58 40.57 44.75 47.53 54.47 63.90 68.89 76.35 83.54 91.83 100.12 113.92 2.800 40 112

21.59 29.03 33.37 36.24 43.33 52.89 57.93 65.46 72.69 81.02 89.34 103.19 2.800 60 168

37.97 44.91 49.07 51.84 58.75 68.15 73.13 80.59 87.77 96.04 104.33 118.12 2.813 32 90

23.63 28.19 31.15 38.41 48.09 53.18 60.76 68.03 76.39 84.73 98.61 2.824 68 192

39.98 46.91 51.05 53.82 60.73 70.12 75.10 82.55 89.73 98.00 106.28 120.07 2.857 28 80

14mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

The Driving Force in Power Transmission. Page 41

1.05 1.05 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10

*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.

Sprocket Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No.

Grooves

Pitch

Diameter

(Inches)

No.

Grooves

Pitch

Diameter

(Inches)

966-14MGT

P.L 38.031

69 teeth

1190-14MGT

P.L 46.850

85 teeth

1400-14MGT

P.L 55.118

100 teeth

1610-14MGT

P.L 63.386

115 teeth

1778-14MGT

P.L 70.000

127 teeth

1890-14MGT

P.L 74.409

135 teeth

2100-14MGT

P.L 82.677

150 teeth

2310-14MGT

P.L 90.945

165 teeth

2450-14MGT

P.L 96.457

175 teeth

2590-14MGT

P.L 101.968

185 teeth

38 6.667 112 19.650 2.947 15.12 19.58 23.91 26.77 29.60

30 5.263 90 15.790 3.000 14.17 17.68 19.97 24.23 28.45 31.25 34.04

48 8.421 144 25.264 3.000 19.97 22.97

56 9.825 168 29.475 3.000

64 11.229 192 33.686 3.000

29 5.088 90 15.790 3.103 14.28 17.79 20.09 24.35 28.57 31.38 34.17

36 6.316 112 19.650 3.111 15.34 19.81 24.15 27.01 29.84

60 10.527 192 33.686 3.200

28 4.912 90 15.790 3.214 14.40 17.91 20.21 24.47 28.69 31.50 34.29

52 9.123 168 29.475 3.231

44 7.720 144 25.264 3.273 17.29 20.41 23.42

34 5.965 112 19.650 3.294 15.56 20.04 24.39 27.25 30.09

56 9.825 192 33.686 3.429

32 5.614 112 19.650 3.500 13.25 15.77 20.27 24.62 27.49 30.33

48 8.421 168 29.475 3.500

40 7.018 144 25.264 3.600 17.71 20.85 23.86

52 9.123 192 33.686 3.692

30 5.263 112 19.650 3.733 13.46 15.99 20.50 24.85 27.72 30.57

38 6.667 144 25.264 3.789 17.92 21.06 24.09

44 7.720 168 29.475 3.818

29 5.088 112 19.650 3.862 13.57 16.10 20.61 24.97 27.84 30.69

28 4.912 112 19.650 4.000 13.67 16.21 20.72 25.09 27.96 30.81

36 6.316 144 25.264 4.000 18.13 21.28 24.31

48 8.421 192 33.686 4.000

40 7.018 168 29.475 4.200 18.87

34 5.965 144 25.264 4.235 18.34 21.50 24.53

44 7.720 192 33.686 4.364

38 6.667 168 29.475 4.421 19.08

32 5.614 144 25.264 4.500 18.55 21.72 24.76

36 6.316 168 29.475 4.667 19.28

30 5.263 144 25.264 4.800 18.76 21.93 24.98

40 7.018 192 33.686 4.800

34 5.965 168 29.475 4.941 19.48

29 5.088 144 25.264 4.966 18.86 22.04 25.09

38 6.667 192 33.686 5.053

28 4.912 144 25.264 5.143 18.97 22.15 25.20

32 5.614 168 29.475 5.250 19.69

36 6.316 192 33.686 5.333

30 5.263 168 29.475 5.600 19.89

34 5.965 192 33.686 5.647

29 5.088 168 29.475 5.793 19.99

28 4.912 168 29.475 6.000 20.09

32 5.614 192 33.686 6.000

30 5.263 192 33.686 6.400

29 5.088 192 33.686 6.621

28 4.912 192 33.686 6.857

14mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Page 42 The Gates Rubber Company

Length Factor* 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.

Center Distance, Inches

Speed

Ratio

Sprocket Combinations

DriveR DriveN

2800-14MGT

P.L 110.236

200 teeth

3150-14MGT

P.L 124.016

225 teeth

3360-14MGT

P.L 132.283

240 teeth

3500-14MGT

P.L 137.795

250 teeth

3850-14MGT

P.L 151.575

275 teeth

4326-14MGT

P.L 170.315

309 teeth

4578-14MGT

P.L 180.236

327 teeth

4956-14MGT

P.L 195.118

354 teeth

5320-14MGT

P.L 209.449

380 teeth

5740-14MGT

P.L 225.984

410 teeth

6160-14MGT

P.L 242.520

440 teeth

6860-14MGT

P.L 270.079

490 teeth

No. of

grooves No. of

grooves

33.83 40.82 45.00 47.79 54.73 64.16 69.15 76.62 83.80 92.09 100.38 114.19 2.947 38 112

38.22 45.17 49.32 52.10 59.02 68.42 73.40 80.85 88.03 96.31 104.59 118.39 3.000 30 90

27.36 34.52 38.77 41.59 48.60 58.09 63.10 70.60 77.81 86.12 94.43 108.26 3.000 48 144

22.02 29.49 33.84 36.71 43.81 53.38 58.43 65.96 73.20 81.53 89.86 103.71 3.000 56 168

24.06 28.63 31.61 38.88 48.58 53.66 61.25 68.53 76.89 85.24 99.13 3.000 64 192

38.35 45.30 49.45 52.23 59.15 68.55 73.53 80.99 88.17 96.44 104.73 118.52 3.103 29 90

34.07 41.07 45.25 48.04 54.99 64.42 69.41 76.88 84.07 92.36 100.65 114.45 3.111 36 112

24.49 29.08 32.06 39.34 49.06 54.15 61.75 69.03 77.40 85.75 99.64 3.200 60 192

38.48 45.42 49.58 52.36 59.28 68.68 73.66 81.12 88.30 96.58 104.86 118.66 3.214 28 90

22.46 29.95 34.30 37.18 44.30 53.88 58.92 66.46 73.71 82.04 90.37 104.23 3.231 52 168

27.82 35.00 39.25 42.08 49.09 58.59 63.61 71.11 78.33 86.64 94.95 108.78 3.273 44 144

34.32 41.32 45.51 48.30 55.24 64.67 69.67 77.14 84.33 92.62 100.91 114.72 3.294 34 112

24.92 29.52 32.51 39.81 49.54 54.64 62.24 69.53 77.90 86.26 100.16 3.429 56 192

34.56 41.57 45.76 48.55 55.50 64.93 69.93 77.40 84.59 92.88 101.17 114.98 3.500 32 112

22.89 30.41 34.77 37.66 44.78 54.37 59.42 66.97 74.21 82.55 90.89 104.75 3.500 48 168

28.28 35.48 39.73 42.56 49.59 59.10 64.12 71.62 78.84 87.16 95.47 109.30 3.600 40 144

25.35 29.96 32.96 40.28 50.02 55.12 62.73 70.02 78.40 86.77 100.67 3.692 52 192

34.81 41.82 46.01 48.80 55.75 65.19 70.18 77.66 84.85 93.15 101.44 115.25 3.733 30 112

28.51 35.71 39.98 42.81 49.84 59.35 64.37 71.88 79.10 87.42 95.73 109.57 3.789 38 144

23.32 30.86 35.23 38.12 45.26 54.86 59.92 67.47 74.72 83.06 91.40 105.26 3.818 44 168

34.93 41.95 46.14 48.93 55.88 65.32 70.31 77.79 84.98 93.28 101.57 115.38 3.862 29 112

35.05 42.07 46.26 49.05 56.01 65.45 70.44 77.92 85.11 93.41 101.70 115.51 4.000 28 112

28.74 35.95 40.22 43.05 50.08 59.60 64.62 72.13 79.36 87.67 95.99 109.83 4.000 36 144

25.78 30.41 33.41 40.74 50.50 55.61 63.22 70.52 78.91 87.27 101.18 4.000 48 192

23.75 31.31 35.70 38.59 45.74 55.35 60.41 67.97 75.22 83.57 91.91 105.78 4.200 40 168

28.97 36.19 40.46 43.29 50.33 59.85 64.87 72.39 79.61 87.93 96.25 110.09 4.235 34 144

26.20 30.84 33.86 41.20 50.97 56.09 63.71 71.01 79.41 87.78 101.69 4.364 44 192

23.97 31.54 35.93 38.83 45.98 55.60 60.66 68.22 75.48 83.83 92.17 106.04 4.421 38 168

29.20 36.43 40.70 43.54 50.58 60.10 65.13 72.64 79.87 88.19 96.51 110.35 4.500 32 144

24.18 31.76 36.16 39.06 46.22 55.84 60.91 68.47 75.73 84.08 92.42 106.30 4.667 36 168

29.43 36.66 40.94 43.78 50.82 60.35 65.38 72.90 80.12 88.45 96.77 110.61 4.800 30 144

26.63 31.28 34.31 41.66 51.45 56.57 64.20 71.51 79.91 88.28 102.20 4.800 40 192

24.39 31.99 36.39 39.29 46.46 56.08 61.15 68.72 75.98 84.33 92.68 106.56 4.941 34 168

29.54 36.78 41.06 43.90 50.94 60.47 65.50 73.02 80.25 88.58 96.90 110.74 4.966 29 144

26.84 31.50 34.53 41.89 51.69 56.81 64.45 71.76 80.16 88.53 102.45 5.053 38 192

29.66 36.90 41.18 44.02 51.07 60.60 65.63 73.15 80.38 88.71 97.03 110.87 5.143 28 144

24.61 32.22 36.62 39.53 46.69 56.33 61.40 68.97 76.23 84.59 92.93 106.81 5.250 32 168

27.05 31.72 34.75 42.12 51.92 57.05 64.69 72.00 80.41 88.79 102.71 5.333 36 192

24.82 32.44 36.85 39.76 46.93 56.57 61.64 69.22 76.48 84.84 93.19 107.07 5.600 30 168

27.26 31.94 34.97 42.35 52.16 57.29 64.93 72.25 80.65 89.04 102.96 5.647 34 192

24.93 32.55 36.96 39.87 47.05 56.69 61.77 69.34 76.61 84.97 93.32 107.20 5.793 29 168

25.03 32.67 37.08 39.99 47.17 56.81 61.89 69.46 76.73 85.09 93.44 107.33 6.000 28 168

27.47 32.16 35.20 42.58 52.40 57.53 65.18 72.50 80.90 89.29 103.22 6.000 32 192

27.68 32.38 35.42 42.81 52.63 57.77 65.42 72.74 81.15 89.54 103.47 6.400 30 192

27.79 32.49 35.53 42.93 52.75 57.89 65.54 72.86 81.28 89.66 103.60 6.621 29 192

27.90 32.60 35.64 43.04 52.87 58.01 65.66 72.99 81.40 89.79 103.73 6.857 28 192

14mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

The Driving Force in Power Transmission. Page 43

1.05 1.05 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10

*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.

5M PowerGrip®GT®2 Power Rating Table — 9mm Belt Width

5M PowerGrip GT2 Power Rating Table — 15mm Belt Width

Page 44 The Gates Rubber Company

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

1.128 19

1.191 20

1.253 21

1.316 22

1.379 23

1.441 24

1.504 25

1.566 26

1.629 28

1.754 30

1.880 32

2.005 34

2.130 36

2.256 38

2.381 40

2.506 44

2.757 45

2.820 48

3.008 50

3.133 52

3.258 56

3.509 60

3.760 64

4.010 68

4.261

10 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04

20 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.07 0.07 0.08 0.08

40 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.10 0.10 0.11 0.11 0.12 0.13 0.14 0.15

60 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.08 0.09 0.10 0.11 0.11 0.12 0.13 0.14 0.15 0.16 0.16 0.18 0.19 0.21 0.22

100 0.06 0.06 0.07 0.07 0.08 0.09 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.17 0.18 0.19 0.21 0.22 0.24 0.25 0.26 0.29 0.31 0.33 0.35

200 0.10 0.11 0.12 0.14 0.15 0.16 0.17 0.18 0.20 0.22 0.24 0.27 0.29 0.31 0.33 0.36 0.40 0.41 0.45 0.47 0.49 0.54 0.58 0.62 0.67

300 0.14 0.16 0.18 0.19 0.21 0.23 0.25 0.26 0.28 0.31 0.35 0.38 0.41 0.45 0.48 0.51 0.58 0.60 0.64 0.68 0.71 0.77 0.84 0.90 0.96

400 0.18 0.20 0.22 0.25 0.27 0.29 0.31 0.34 0.36 0.40 0.45 0.49 0.53 0.58 0.62 0.66 0.75 0.77 0.83 0.88 0.92 1.00 1.08 1.17 1.25

500 0.22 0.24 0.27 0.30 0.33 0.35 0.38 0.41 0.44 0.49 0.54 0.60 0.65 0.70 0.76 0.81 0.91 0.94 1.02 1.07 1.12 1.22 1.33 1.43 1.53

600 0.25 0.28 0.32 0.35 0.38 0.41 0.45 0.48 0.51 0.57 0.64 0.70 0.76 0.83 0.89 0.95 1.08 1.11 1.20 1.26 1.32 1.44 1.56 1.68 1.80

800 0.31 0.36 0.40 0.44 0.49 0.53 0.57 0.61 0.65 0.74 0.82 0.90 0.98 1.07 1.15 1.23 1.39 1.43 1.55 1.63 1.70 1.86 2.02 2.17 2.32

1000 0.37 0.43 0.48 0.53 0.58 0.64 0.69 0.74 0.79 0.89 1.00 1.10 1.20 1.30 1.40 1.49 1.69 1.74 1.89 1.98 2.08 2.27 2.46 2.65 2.83

1200 0.43 0.49 0.56 0.62 0.68 0.74 0.80 0.86 0.92 1.04 1.16 1.28 1.40 1.52 1.64 1.75 1.98 2.04 2.21 2.33 2.44 2.66 2.89 3.11 3.33

1400 0.49 0.56 0.63 0.70 0.77 0.84 0.91 0.98 1.05 1.19 1.33 1.47 1.60 1.74 1.87 2.00 2.27 2.34 2.53 2.66 2.79 3.05 3.31 3.56 3.81

1600 0.54 0.62 0.70 0.78 0.86 0.94 1.02 1.10 1.18 1.33 1.49 1.64 1.80 1.95 2.10 2.25 2.55 2.62 2.85 2.99 3.14 3.43 3.71 4.00 4.28

1800 0.59 0.68 0.77 0.86 0.95 1.03 1.12 1.21 1.30 1.47 1.65 1.82 1.99 2.16 2.32 2.49 2.82 2.91 3.15 3.31 3.47 3.80 4.11 4.43 4.74

2000 0.64 0.74 0.83 0.93 1.03 1.13 1.23 1.32 1.42 1.61 1.80 1.99 2.17 2.36 2.54 2.73 3.09 3.18 3.45 3.63 3.80 4.15 4.50 4.84 5.18

2400 0.73 0.85 0.96 1.08 1.19 1.31 1.42 1.53 1.65 1.87 2.10 2.32 2.54 2.75 2.97 3.18 3.61 3.72 4.03 4.24 4.44 4.85 5.25 5.65 6.04

2800 0.81 0.95 1.08 1.21 1.35 1.48 1.61 1.74 1.87 2.13 2.38 2.63 2.89 3.14 3.38 3.63 4.11 4.23 4.59 4.82 5.05 5.52 5.97 6.41 6.85

3200 0.89 1.05 1.19 1.34 1.49 1.64 1.79 1.93 2.08 2.37 2.66 2.94 3.22 3.50 3.78 4.05 4.59 4.72 5.12 5.38 5.64 6.15 6.65 7.14 7.61

3600 0.97 1.14 1.30 1.47 1.64 1.80 1.96 2.12 2.29 2.61 2.92 3.24 3.55 3.86 4.16 4.46 5.05 5.20 5.63 5.92 6.20 6.75 7.29 7.82 8.33

4000 1.04 1.23 1.41 1.59 1.77 1.95 2.13 2.31 2.48 2.83 3.18 3.52 3.86 4.20 4.53 4.85 5.49 5.65 6.12 6.43 6.73 7.32 7.90 8.45 8.99

5000 1.20 1.43 1.65 1.87 2.09 2.30 2.52 2.73 2.95 3.37 3.78 4.19 4.59 4.99 5.38 5.77 6.51 6.70 7.24 7.59 7.93 8.60 9.23 9.84 10.4

6000 1.34 1.60 1.86 2.12 2.37 2.62 2.88 3.12 3.37 3.85 4.33 4.80 5.26 5.71 6.15 6.58 7.41 7.61 8.20 8.57 8.94 9.64 10.3 10.9

8000 1.56 1.89 2.21 2.54 2.86 3.17 3.48 3.78 4.09 4.68 5.26 5.81 6.35 6.88 7.38 7.86 8.76 8.97 9.57 9.94

10000 1.69 2.08 2.46 2.84 3.22 3.58 3.94 4.28 4.63 5.29 5.93 6.54 7.11 7.65 8.15 8.62

12000 1.75 2.19 2.61 3.04 3.45 3.84 4.23 4.61 4.98 5.67 6.33 6.93

14000 1.72 2.20 2.65 3.10 3.54 3.95 4.36 4.74 5.11 5.79

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

1.128 19

1.191 20

1.253 21

1.316 22

1.379 23

1.441 24

1.504 25

1.566 26

1.629 28

1.754 30

1.880 32

2.005 34

2.130 36

2.256 38

2.381 40

2.506 44

2.757 45

2.820 48

3.008 50

3.133 52

3.258 56

3.509 60

3.760 64

4.010 68

4.261

10 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.07 0.07

20 0.02 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.10 0.10 0.11 0.12 0.13 0.13

40 0.04 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.08 0.09 0.10 0.10 0.11 0.12 0.13 0.14 0.16 0.16 0.17 0.18 0.19 0.21 0.22 0.24 0.25

60 0.06 0.07 0.07 0.08 0.09 0.09 0.10 0.11 0.11 0.12 0.14 0.15 0.16 0.18 0.19 0.20 0.22 0.23 0.25 0.26 0.27 0.30 0.32 0.35 0.37

100 0.09 0.10 0.11 0.12 0.14 0.15 0.16 0.17 0.18 0.20 0.22 0.24 0.26 0.28 0.30 0.32 0.36 0.37 0.40 0.42 0.44 0.48 0.51 0.55 0.59

200 0.17 0.19 0.21 0.23 0.25 0.27 0.29 0.31 0.33 0.36 0.40 0.44 0.48 0.52 0.56 0.59 0.67 0.69 0.74 0.78 0.82 0.89 0.97 1.04 1.11

300 0.24 0.26 0.29 0.32 0.35 0.38 0.41 0.44 0.47 0.52 0.58 0.63 0.69 0.75 0.80 0.86 0.96 0.99 1.07 1.13 1.18 1.29 1.39 1.50 1.60

400 0.30 0.34 0.37 0.41 0.45 0.49 0.52 0.56 0.60 0.67 0.75 0.82 0.89 0.96 1.04 1.11 1.25 1.28 1.39 1.46 1.53 1.67 1.81 1.94 2.08

500 0.36 0.41 0.45 0.50 0.54 0.59 0.64 0.68 0.73 0.82 0.91 1.00 1.09 1.17 1.26 1.35 1.52 1.57 1.70 1.78 1.87 2.04 2.21 2.38 2.54

600 0.42 0.47 0.53 0.58 0.64 0.69 0.74 0.80 0.85 0.96 1.06 1.17 1.27 1.38 1.48 1.59 1.79 1.84 2.00 2.10 2.20 2.40 2.60 2.80 3.00

800 0.52 0.60 0.67 0.74 0.81 0.88 0.95 1.02 1.09 1.23 1.37 1.50 1.64 1.78 1.91 2.05 2.31 2.38 2.58 2.71 2.84 3.10 3.36 3.62 3.87

1000 0.62 0.71 0.80 0.89 0.97 1.06 1.15 1.23 1.32 1.49 1.66 1.83 1.99 2.16 2.33 2.49 2.82 2.90 3.14 3.30 3.46 3.78 4.10 4.41 4.72

1200 0.72 0.82 0.93 1.03 1.13 1.23 1.34 1.44 1.54 1.74 1.94 2.14 2.34 2.53 2.73 2.92 3.31 3.40 3.69 3.88 4.07 4.44 4.81 5.18 5.55

1400 0.81 0.93 1.05 1.17 1.29 1.40 1.52 1.64 1.75 1.98 2.21 2.44 2.67 2.90 3.12 3.34 3.78 3.89 4.22 4.44 4.65 5.08 5.51 5.93 6.35

1600 0.90 1.03 1.17 1.30 1.43 1.57 1.70 1.83 1.96 2.22 2.48 2.74 2.99 3.25 3.50 3.75 4.25 4.37 4.74 4.99 5.23 5.71 6.19 6.66 7.13

1800 0.98 1.13 1.28 1.43 1.58 1.72 1.87 2.02 2.16 2.45 2.74 3.03 3.31 3.59 3.87 4.15 4.71 4.84 5.25 5.52 5.79 6.32 6.85 7.38 7.89

2000 1.06 1.23 1.39 1.55 1.72 1.88 2.04 2.20 2.36 2.68 3.00 3.31 3.62 3.93 4.24 4.55 5.15 5.30 5.75 6.05 6.34 6.92 7.50 8.07 8.64

2400 1.21 1.41 1.60 1.79 1.99 2.18 2.37 2.56 2.75 3.12 3.49 3.86 4.23 4.59 4.95 5.31 6.02 6.19 6.72 7.06 7.40 8.08 8.75 9.41 10.1

2800 1.35 1.58 1.80 2.02 2.24 2.46 2.68 2.90 3.11 3.54 3.97 4.39 4.81 5.23 5.64 6.04 6.85 7.05 7.64 8.04 8.42 9.19 9.95 10.7 11.4

3200 1.49 1.74 1.99 2.24 2.49 2.74 2.98 3.22 3.47 3.95 4.43 4.90 5.37 5.84 6.30 6.75 7.65 7.87 8.53 8.97 9.40 10.2 11.1 11.9 12.7

3600 1.61 1.90 2.17 2.45 2.73 3.00 3.27 3.54 3.81 4.34 4.87 5.40 5.91 6.43 6.93 7.43 8.42 8.66 9.39 9.86 10.3 11.3 12.2 13.0 13.9

4000 1.73 2.04 2.34 2.65 2.95 3.25 3.55 3.84 4.14 4.72 5.30 5.87 6.43 6.99 7.54 8.09 9.16 9.42 10.2 10.7 11.2 12.2 13.2 14.1 15.0

5000 2.00 2.38 2.74 3.11 3.48 3.84 4.20 4.56 4.91 5.61 6.31 6.99 7.66 8.32 8.97 9.61 10.9 11.2 12.1 12.6 13.2 14.3 15.4 16.4 17.4

6000 2.23 2.67 3.10 3.53 3.96 4.37 4.79 5.20 5.62 6.42 7.22 8.00 8.76 9.51 10.2 11.0 12.3 12.7 13.7 14.3 14.9 16.1 17.1 18.1

8000 2.59 3.15 3.69 4.23 4.76 5.28 5.80 6.31 6.81 7.80 8.76 9.69 10.6 11.5 12.3 13.1 14.6 14.9 15.9 16.6

10000 2.82 3.47 4.11 4.74 5.36 5.96 6.56 7.14 7.72 8.82 9.89 10.9 11.8 12.7 13.6 14.4

12000 2.91 3.65 4.36 5.06 5.75 6.41 7.06 7.68 8.30 9.46 10.5 11.5

14000 2.86 3.66 4.42 5.17 5.90 6.59 7.26 7.90 8.52 9.65

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

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

5M PowerGrip®GT®2 Power Rating Table — 25mm Belt Width

The Driving Force in Power Transmission. Page 45

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

1.128 19

1.191 20

1.253 21

1.316 22

1.379 23

1.441 24

1.504 25

1.566 26

1.629 28

1.754 30

1.880 32

2.005 34

2.130 36

2.256 38

2.381 40

2.506 44

2.757 45

2.820 48

3.008 50

3.133 52

3.258 56

3.509 60

3.760 64

4.010 68

4.261

10 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05 0.06 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.10 0.10 0.11 0.12

20 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.07 0.07 0.08 0.08 0.09 0.10 0.11 0.11 0.12 0.14 0.14 0.15 0.16 0.17 0.18 0.20 0.21 0.22

40 0.07 0.08 0.09 0.09 0.10 0.11 0.11 0.12 0.13 0.14 0.16 0.17 0.19 0.20 0.22 0.23 0.26 0.27 0.29 0.30 0.31 0.34 0.37 0.40 0.42

60 0.10 0.11 0.12 0.13 0.14 0.15 0.17 0.18 0.19 0.21 0.23 0.25 0.27 0.29 0.31 0.33 0.37 0.38 0.42 0.44 0.46 0.50 0.54 0.58 0.62

100 0.16 0.17 0.19 0.21 0.23 0.24 0.26 0.28 0.29 0.33 0.36 0.40 0.43 0.46 0.50 0.53 0.60 0.61 0.66 0.69 0.73 0.79 0.86 0.92 0.98

200 0.28 0.31 0.35 0.38 0.41 0.45 0.48 0.51 0.54 0.61 0.67 0.74 0.80 0.86 0.93 0.99 1.12 1.15 1.24 1.30 1.36 1.49 1.61 1.73 1.85

300 0.39 0.44 0.49 0.54 0.59 0.63 0.68 0.73 0.78 0.87 0.96 1.06 1.15 1.24 1.33 1.43 1.61 1.65 1.79 1.88 1.97 2.15 2.32 2.50 2.67

400 0.50 0.56 0.62 0.69 0.75 0.81 0.87 0.94 1.00 1.12 1.24 1.36 1.48 1.61 1.73 1.84 2.08 2.14 2.32 2.43 2.55 2.78 3.01 3.24 3.47

500 0.60 0.68 0.75 0.83 0.91 0.98 1.06 1.13 1.21 1.36 1.51 1.66 1.81 1.96 2.10 2.25 2.54 2.61 2.83 2.97 3.11 3.40 3.68 3.96 4.24

600 0.69 0.79 0.88 0.97 1.06 1.15 1.24 1.33 1.42 1.60 1.77 1.95 2.12 2.30 2.47 2.64 2.99 3.07 3.33 3.50 3.67 4.00 4.33 4.66 4.99

800 0.87 0.99 1.11 1.23 1.35 1.47 1.58 1.70 1.82 2.05 2.28 2.51 2.73 2.96 3.19 3.41 3.86 3.97 4.30 4.52 4.74 5.17 5.60 6.03 6.46

1000 1.04 1.19 1.33 1.48 1.62 1.77 1.91 2.05 2.20 2.48 2.76 3.04 3.32 3.60 3.88 4.15 4.70 4.83 5.24 5.50 5.77 6.30 6.83 7.35 7.87

1200 1.20 1.37 1.54 1.72 1.89 2.06 2.23 2.40 2.57 2.90 3.23 3.56 3.89 4.22 4.55 4.87 5.51 5.67 6.15 6.46 6.78 7.40 8.02 8.64 9.25

1400 1.35 1.55 1.75 1.95 2.14 2.34 2.53 2.73 2.92 3.31 3.69 4.07 4.45 4.83 5.20 5.57 6.31 6.49 7.04 7.40 7.76 8.47 9.18 9.89 10.6

1600 1.49 1.72 1.94 2.17 2.39 2.61 2.83 3.05 3.27 3.70 4.14 4.56 4.99 5.41 5.83 6.25 7.08 7.29 7.90 8.31 8.71 9.52 10.3 11.1 11.9

1800 1.63 1.89 2.13 2.38 2.63 2.87 3.12 3.36 3.61 4.09 4.57 5.05 5.52 5.99 6.46 6.92 7.84 8.07 8.75 9.20 9.65 10.5 11.4 12.3 13.2

2000 1.77 2.04 2.32 2.59 2.86 3.13 3.40 3.67 3.94 4.47 5.00 5.52 6.04 6.56 7.07 7.58 8.59 8.84 9.58 10.1 10.6 11.5 12.5 13.5 14.4

2400 2.02 2.35 2.67 2.99 3.31 3.63 3.95 4.26 4.58 5.20 5.82 6.44 7.04 7.65 8.25 8.85 10.0 10.3 11.2 11.8 12.3 13.5 14.6 15.7 16.8

2800 2.26 2.63 3.00 3.37 3.74 4.10 4.47 4.83 5.19 5.90 6.62 7.32 8.01 8.71 9.39 10.1 11.4 11.8 12.7 13.4 14.0 15.3 16.6 17.8 19.0

3200 2.48 2.90 3.32 3.74 4.15 4.56 4.97 5.37 5.78 6.58 7.38 8.17 8.95 9.73 10.5 11.3 12.8 13.1 14.2 14.9 15.7 17.1 18.5 19.8 21.2

3600 2.69 3.16 3.62 4.08 4.54 5.00 5.45 5.90 6.35 7.24 8.12 8.99 9.85 10.7 11.6 12.4 14.0 14.4 15.6 16.4 17.2 18.8 20.3 21.7 23.1

4000 2.89 3.40 3.91 4.42 4.92 5.42 5.92 6.41 6.90 7.87 8.84 9.79 10.7 11.7 12.6 13.5 15.3 15.7 17.0 17.9 18.7 20.3 21.9 23.5 25.0

5000 3.34 3.96 4.57 5.19 5.80 6.40 7.00 7.59 8.19 9.35 10.5 11.6 12.8 13.9 15.0 16.0 18.1 18.6 20.1 21.1 22.0 23.9 25.7 27.3 28.9

6000 3.72 4.45 5.17 5.88 6.60 7.29 7.99 8.67 9.36 10.7 12.0 13.3 14.6 15.9 17.1 18.3 20.6 21.1 22.8 23.8 24.8 26.8 28.6 30.2

8000 4.32 5.24 6.14 7.04 7.93 8.80 9.67 10.5 11.4 13.0 14.6 16.1 17.6 19.1 20.5 21.8 24.3 24.9 26.6 27.6

10000 4.70 5.79 6.85 7.90 8.94 9.94 10.9 11.9 12.9 14.7 16.5 18.2 19.7 21.2 22.6 23.9

12000 4.85 6.08 7.26 8.44 9.58 10.7 11.8 12.8 13.8 15.8 17.6 19.2

14000 4.77 6.10 7.37 8.63 9.84 11.0 12.1 13.2 14.2 16.1

Pitch/Length

Designation No. of

Teeth Correction

Factor

5MR-300 60 0.77

5MR-355 71 0.81

5MR-375 75 0.83

5MR-400 80 0.84

5MR-405 81 0.85

5MR-425 85 0.86

5MR-450 90 0.88

Pitch/Length

Designation No. of

Teeth Correction

Factor

5MR-500 100 0.90

5MR-535 107 0.92

5MR-565 113 0.94

5MR-580 116 0.95

5MR-600 120 0.95

5MR-625 125 0.97

5MR-650 130 0.98

Pitch/Length

Designation No. of

Teeth Correction

Factor

5MR-700 140 1.00

5MR-750 150 1.01

5MR-800 160 1.03

5MR-850 170 1.05

5MR-900 180 1.06

5MR-1000 200 1.09

5MR-1150 230 1.13

Pitch/Length

Designation No. of

Teeth Correction

Factor

5MR-1300 260 1.16

5MR-1450 290 1.19

5MR-1600 320 1.22

5MR-1720 344 1.24

5MR-2100 420 1.29

5M PowerGrip GT2 Belt Length Correction Factor Table

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

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

8M PowerGrip®GT®2 Power Rating Table — 20mm Belt Width

8M PowerGrip GT2 Power Rating Table — 30mm Belt Width

Page 46 The Gates Rubber Company

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

2.206 24

2.406 26

2.607 28

2.807 30

3.008 32

3.208 34

3.409 36

3.609 38

3.810 40

4.010 44

4.411 48

4.812 56

5.614 64

6.416 72

7.218 80

8.020

*10 0.07 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.18 0.22 0.25 0.29 0.32

*20 0.12 0.14 0.16 0.18 0.20 0.21 0.23 0.25 0.27 0.28 0.32 0.35 0.42 0.49 0.55 0.62

*40 0.24 0.27 0.31 0.34 0.37 0.41 0.44 0.48 0.51 0.54 0.61 0.68 0.81 0.94 1.07 1.20

*60 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.69 0.74 0.79 0.89 0.99 1.18 1.38 1.57 1.76

*100 0.55 0.63 0.72 0.80 0.88 0.96 1.04 1.12 1.20 1.28 1.44 1.60 1.91 2.23 2.54 2.84

*200 1.04 1.20 1.36 1.52 1.67 1.83 1.98 2.14 2.29 2.45 2.75 3.06 3.67 4.27 4.87 5.46

*300 1.51 1.74 1.97 2.20 2.44 2.66 2.89 3.12 3.35 3.57 4.02 4.47 5.36 6.24 7.12 7.99

*400 1.96 2.27 2.57 2.87 3.18 3.48 3.78 4.07 4.37 4.67 5.26 5.85 7.02 8.17 9.32 10.5

*500 2.40 2.78 3.16 3.53 3.90 4.27 4.64 5.01 5.38 5.74 6.47 7.20 8.64 10.1 11.5 12.9

*600 2.83 3.28 3.73 4.17 4.62 5.06 5.50 5.93 6.37 6.80 7.67 8.53 10.2 11.9 13.6 15.3

700 3.26 3.78 4.29 4.80 5.32 5.83 6.34 6.84 7.35 7.85 8.85 9.84 11.8 13.8 15.7 17.6

800 3.68 4.26 4.85 5.43 6.01 6.59 7.17 7.74 8.31 8.88 10.0 11.1 13.4 15.6 17.8 20.0

870 3.96 4.60 5.23 5.86 6.49 7.12 7.74 8.36 8.98 9.60 10.8 12.0 14.5 16.9 19.2 21.6

1000 4.49 5.22 5.94 6.66 7.38 8.09 8.80 9.50 10.2 10.9 12.3 13.7 16.5 19.2 21. 24.5

1160 5.13 5.97 6.80 7.62 8.45 9.26 10.1 10.9 11.7 12.5 14.1 15.7 18.9 22.0 25.1 28.1

1200 5.29 6.15 7.01 7.86 8.71 9.56 10.4 11.2 12.1 12.9 14.6 16.2 19.5 22.7 25.9 29.0

1400 6.07 7.07 8.06 9.04 10.0 11.0 12.0 12.9 13.9 14.9 16.8 18.7 22.4 26.1 29.8 33.4

1600 6.84 7.97 9.09 10.2 11.3 12.4 13.5 14.6 15.7 16.8 19.0 21.1 25.3 29.5 33.6 37.7

1750 7.41 8.64 9.86 11.1 12.3 13.5 14.7 15.9 17.1 18.2 20.6 22.9 27.5 32.0 36.5 40.8

2000 8.35 9.73 11.1 12.5 13.9 15.2 16.6 17.9 19.3 20.6 23.2 25.8 31.0 36.1 41.1 45.9

2400 9.81 11.4 13.1 14.7 16.3 17.9 19.5 21.1 22.7 24.3 27.4 30.5 36.5 42.4 48.2 53.8

2800 11.2 13.1 15.0 16.9 18.7 20.6 22.4 24.2 26.0 27.8 31.4 34.9 41.8 48.5 54.9 61.2

3200 12.6 14.8 16.9 19.0 21.1 23.2 25.2 27.3 29.3 31.3 35.3 39.2 46.9 54.2 61.3

3450 13.5 15.8 18.0 20.3 22.5 24.8 27.0 29.1 31.3 33.5 37.7 41.9 50.0 57.7 65.1

4000 15.3 17.9 20.5 23.1 25.6 28.2 30.7 33.1 35.6 38.0 42.8 47.4 56.4

4500 16.9 19.8 22.7 25.5 28.4 31.1 33.9 36.6 39.3 42.0 47.2 52.2

5000 18.5 21.7 24.8 27.9 31.0 34.0 37.0 40.0 42.9 45.7 51.3 56.7

5500 20.0 23.5 26.9 30.2 33.6 36.8 40.0 43.2 46.3 49.3 55.3

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

2.206 24

2.406 26

2.607 28

2.807 30

3.008 32

3.208 34

3.409 36

3.609 38

3.810 40

4.010 44

4.411 48

4.812 56

5.614 64

6.416 72

7.218 80

8.020

*10 0.10 0.12 0.13 0.15 0.16 0.17 0.19 0.20 0.22 0.23 0.26 0.29 0.34 0.40 0.45 0.51

*20 0.20 0.22 0.25 0.28 0.31 0.33 0.36 0.39 0.42 0.44 0.50 0.55 0.66 0.76 0.87 0.98

*40 0.37 0.43 0.48 0.53 0.59 0.64 0.69 0.75 0.80 0.85 0.96 1.06 1.27 1.47 1.68 1.88

*60 0.54 0.62 0.70 0.78 0.86 0.94 1.01 1.09 1.17 1.25 1.40 1.55 1.86 2.16 2.46 2.76

*100 0.87 1.00 1.12 1.25 1.38 1.51 1.63 1.76 1.89 2.01 2.26 2.51 3.00 3.49 3.98 4.47

*200 1.64 1.89 2.13 2.38 2.63 2.87 3.12 3.36 3.60 3.84 4.33 4.80 5.76 6.70 7.64 8.58

*300 2.37 2.74 3.10 3.46 3.82 4.18 4.54 4.90 5.25 5.61 6.32 7.02 8.42 9.80 11.2 12.5

*400 3.08 3.56 4.04 4.51 4.99 5.46 5.93 6.40 6.87 7.33 8.26 9.18 11.0 12.8 14.6 16.4

*500 3.77 4.36 4.95 5.54 6.13 6.71 7.29 7.87 8.45 9.02 10.2 11.3 13.6 15.8 18.0 20.2

*600 4.45 5.15 5.85 6.55 7.25 7.94 8.63 9.31 10.0 10.7 12.0 13.4 16.1 18.7 21.4 24.0

700 5.11 5.93 6.74 7.54 8.35 9.15 9.95 10.7 11.5 12.3 13.9 15.5 18.6 21.6 24.7 27.7

800 5.77 6.69 7.61 8.52 9.44 10.3 11.2 12.1 13.0 13.9 15.7 17.5 21.0 24.5 27.9 31.4

870 6.22 7.22 8.22 9.20 10.2 11.2 12.2 13.1 14.1 15.1 17.0 18.9 22.7 26.5 30.2 33.9

1000 7.05 8.19 9.33 10.5 11.6 12.7 13.8 14.9 16.0 17.1 19.3 21.5 25.8 30.1 34.3 38.5

1160 8.06 9.37 10.7 12.0 13.3 14.5 15.8 17.1 18.4 19.6 22.2 24.7 29.6 34.5 39.4 44.2

1200 8.31 9.66 11.0 12.3 13.7 15.0 16.3 17.6 19.0 20.3 22.9 25.4 30.6 35.6 40.6 45.6

1400 9.54 11.1 12.7 14.2 15.7 17.3 18.8 20.3 21.8 23.3 26.3 29.3 35.2 41.0 46.8 52.4

1600 10.7 12.5 14.3 16.0 17.8 19.5 21.2 23.0 24.7 26.4 29.8 33.1 39.8 46.3 52.8 59.1

1750 11.6 13.6 15.5 17.4 19.3 21.2 23.0 24.9 26.8 28.6 32.3 36.0 43.2 50.3 57.2 64.1

2000 13.1 15.3 17.5 19.6 21.8 23.9 26.0 28.1 30.2 32.3 36.5 40.6 48.7 56.7 64.5 72.1

2400 15.4 18.0 20.5 23.1 25.6 28.1 30.7 33.1 35.6 38.1 43.0 47.8 57.3 66.6 75.6 84.4

2800 17.6 20.6 23.6 26.5 29.4 32.3 35.2 38.0 40.9 43.7 49.3 54.8 65.6 76.1 86.2 96.0

3200 19.8 23.2 26.5 29.8 33.1 36.4 39.6 42.8 46.0 49.2 55.4 61.6 73.6 85.2 96.2

3450 21.1 24.7 28.3 31.9 35.4 38.9 42.3 45.8 49.2 52.5 59.2 65.7 78.4 90.6 102.2

4000 24.0 28.1 32.2 36.2 40.3 44.2 48.1 52.0 55.9 59.7 67.1 74.5 88.5

4500 26.6 31.1 35.6 40.1 44.5 48.9 53.2 57.5 61.7 65.9 74.0 82.0

5000 29.0 34.0 39.0 43.8 48.7 53.4 58.1 62.8 67.3 71.8 80.6 89.1

5500 31.4 36.8 42.2 47.5 52.7 57.8 62.9 67.8 72.7 77.5 86.8

*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®GT®2 Power Rating Table — 50mm Belt Width

The Driving Force in Power Transmission. Page 47

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

2.807 30

3.008 32

3.208 34

3.409 36

3.609 38

3.810 40

4.010 44

4.411 48

4.812 56

5.614 64

6.416 72

7.218 80

8.020

*10 0.25 0.28 0.30 0.33 0.35 0.38 0.40 0.45 0.50 0.59 0.69 0.78 0.88

*20 0.49 0.53 0.58 0.63 0.68 0.72 0.77 0.86 0.96 1.14 1.33 1.51 1.70

*40 0.93 1.02 1.11 1.21 1.30 1.39 1.48 1.66 1.84 2.20 2.56 2.92 3.27

*60 1.35 1.49 1.63 1.76 1.90 2.03 2.17 2.43 2.70 3.23 3.75 4.28 4.80

*100 2.18 2.40 2.62 2.84 3.06 3.28 3.50 3.93 4.36 5.22 6.08 6.92 7.77

*200 4.14 4.57 4.99 5.42 5.84 6.26 6.68 7.52 8.35 10.0 11.7 13.3 14.9

*300 6.02 6.65 7.27 7.90 8.52 9.14 9.75 11.0 12.2 14.6 17.0 19.4 21.8

*400 7.85 8.67 9.49 10.3 11.1 11.9 12.7 14.4 16.0 19.2 22.3 25.5 28.6

*500 9.63 10.7 11.7 12.7 13.7 14.7 15.7 17.7 19.7 23.6 27.5 31.4 35.2

*600 11.4 12.6 13.8 15.0 16.2 17.4 18.6 20.9 23.3 28.0 32.6 37.2 41.7

700 13.1 14.5 15.9 17.3 18.7 20.1 21.4 24.2 26.9 32.3 37.6 42.9 48.2

800 14.8 16.4 18.0 19.6 21.1 22.7 24.2 27.3 30.4 36.5 42.6 48.6 54.5

870 16.0 17.7 19.4 21.1 22.8 24.5 26.2 29.5 32.9 39.5 46.0 52.5 58.9

1000 18.2 20.1 22.1 24.0 25.9 27.9 29.8 33.6 37.4 44.9 52.4 59.7 67.0

1160 20.8 23.1 25.3 27.5 29.7 32.0 34.1 38.5 42.9 51.5 60.0 68.5 76.8

1200 21.5 23.8 26.1 28.4 30.7 33.0 35.2 39.8 44.2 53.1 61.9 70.6 79.2

1400 24.7 27.4 30.0 32.7 35.3 38.0 40.6 45.8 51.0 61.2 71.3 81.3 91.2

1600 27.9 30.9 33.9 36.9 39.9 42.9 45.9 51.8 57.6 69.2 80.6 91.8 102.9

1750 30.2 33.5 36.8 40.1 43.3 46.6 49.8 56.2 62.5 75.0 87.4 99.5 111.4

2000 34.1 37.8 41.5 45.2 48.9 52.6 56.2 63.4 70.6 84.7 98.5 112.1 125.4

2400 40.2 44.6 48.9 53.3 57.6 62.0 66.2 74.7 83.1 99.7 115.8 131.5 146.8

2800 46.1 51.2 56.2 61.2 66.2 71.1 76.0 85.7 95.3 114.1 132.3 149.9 166.9

3200 51.9 57.6 63.2 68.9 74.5 80.0 85.5 96.4 107.1 128.0 148.1 167.4

3450 55.4 61.5 67.6 73.6 79.6 85.5 91.3 102.9 114.3 136.4 157.5 177.7

4000 63.0 70.0 76.9 83.7 90.4 97.1 103.7 116.8 129.5 154.0

4500 69.7 77.4 85.0 92.6 100.0 107.3 114.5 128.7 142.5

5000 76.2 84.7 92.9 101.1 109.1 117.1 124.9 140.1 154.9

5500 82.5 91.6 100.5 109.3 117.9 126.4 134.7 150.9

*Refer to page 15 for additional Service Factors for speeds of 600 rpm or less.

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

Pitch/Length

Designation No. of

Teeth Correction

Factor

384-8MGT 48 0.70

480-8MGT 60 0.80

560-8MGT 70 0.80

600-8MGT 75 0.80

640-8MGT 80 0.90

720-8MGT 90 0.90

800-8MGT 100 0.90

840-8MGT 105 0.90

880-8MGT 110 0.90

Pitch/Length

Designation No. of

Teeth Correction

Factor

920-8MGT 115 1.00

960-8MGT 120 1.00

1040-8MGT 130 1.00

1064-8MGT 133 1.00

1120-8MGT 140 1.00

1160-8MGT 145 1.00

1200-8MGT 150 1.00

1224-8MGT 153 1.00

1280-8MGT 160 1.10

Pitch/Length

Designation No. of

Teeth Correction

Factor

1440-8MGT 180 1.10

1512-8MGT 189 1.10

1584-8MGT 198 1.10

1600-8MGT 200 1.10

1760-8MGT 220 1.10

1800-8MGT 225 1.20

2000-8MGT 250 1.20

2200-8MGT 275 1.20

2400-8MGT 300 1.20

Pitch/Length

Designation No. of

Teeth Correction

Factor

2600-8MGT 325 1.20

2800-8MGT 350 1.20

3048-8MGT 381 1.20

3280-8MGT 410 1.20

3600-8MGT 450 1.20

4400-8MGT 550 1.20

8M PowerGrip GT2 Belt Length Correction Factor

8M PowerGrip GT2 Power Rating Table — 85mm Belt Width

Page 48 The Gates Rubber Company

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

3.409 36

3.609 38

3.810 40

4.010 44

4.411 48

4.812 56

5.614 64

6.416 72

7.218 80

8.020

*10 0.57 0.61 0.65 0.70 0.78 0.87 1.03 1.20 1.36 1.53

*20 1.09 1.18 1.26 1.34 1.50 1.67 1.99 2.31 2.63 2.95

*40 2.10 2.26 2.42 2.57 2.89 3.21 3.83 4.46 5.07 5.69

*60 3.07 3.30 3.53 3.77 4.23 4.70 5.62 6.53 7.44 8.34

*100 4.94 5.32 5.70 6.08 6.84 7.59 9.09 10.6 12.0 13.5

*200 9.43 10.2 10.9 11.6 13.1 14.5 17.4 20.3 23.1 25.9

*300 13.7 14.8 15.9 17.0 19.1 21.2 25.5 29.7 33.8 38.0

*400 17.9 19.4 20.8 22.2 25.0 27.8 33.3 38.8 44.3 49.7

*500 22.1 23.8 25.6 27.3 30.8 34.2 41.0 47.8 54.6 61.2

*600 26.1 28.2 30.3 32.3 36.4 40.5 48.6 56.7 64.7 72.6

700 30.1 32.5 34.9 37.3 42.0 46.8 56.1 65.4 74.7 83.8

800 34.0 36.8 39.5 42.2 47.6 52.9 63.6 74.1 84.5 94.9

870 36.8 39.7 42.7 45.6 51.4 57.2 68.7 80.1 91.4 102.5

1000 41.8 45.1 48.5 51.8 58.5 65.1 78.2 91.1 103.9 116.6

1160 47.9 51.7 55.6 59.4 67.0 74.6 89.6 104.5 119.1 133.6

1200 49.4 53.4 57.4 61.3 69.2 77.0 92.5 107.8 122.9 137.8

1400 56.9 61.5 66.1 70.6 79.7 88.7 106.5 124.1 141.5 158.6

1600 64.3 69.4 74.6 79.8 90.1 100.2 120.4 140.2 159.7 179.0

1750 69.7 75.4 81.0 86.6 97.7 108.8 130.6 152.0 173.1 193.9

2000 78.7 85.1 91.4 97.8 110.3 122.8 147.3 171.4 195.0 218.2

2400 92.8 100.3 107.8 115.2 130.0 144.6 173.4 201.4 228.8 255.4

2800 106.5 115.1 123.7 132.3 149.2 165.9 198.5 230.2 260.9 290.5

3200 119.9 129.6 139.3 148.8 167.7 186.4 222.7 257.6 291.2

3450 128.1 138.4 148.7 158.9 179.1 198.8 237.3 274.1 309.1

4000 145.6 157.4 169.0 180.5 203.1 225.3 267.9

4500 161.0 173.9 186.7 199.3 224.0 248.0

5000 175.9 189.9 203.7 217.3 243.8 269.4

5500 190.2 205.2 220.0 234.4 262.5

*Refer to page 15 for additional Service Factors for speeds of 600 rpm or less.

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

Pitch/Length

Designation No. of

Teeth Correction

Factor

384-8MGT 48 0.70

480-8MGT 60 0.80

560-8MGT 70 0.80

600-8MGT 75 0.80

640-8MGT 80 0.90

720-8MGT 90 0.90

800-8MGT 100 0.90

840-8MGT 105 0.90

880-8MGT 110 0.90

Pitch/Length

Designation No. of

Teeth Correction

Factor

920-8MGT 115 1.00

960-8MGT 120 1.00

1040-8MGT 130 1.00

1064-8MGT 133 1.00

1120-8MGT 140 1.00

1160-8MGT 145 1.00

1200-8MGT 150 1.00

1224-8MGT 153 1.00

1280-8MGT 160 1.10

Pitch/Length

Designation No. of

Teeth Correction

Factor

1440-8MGT 180 1.10

1512-8MGT 189 1.10

1584-8MGT 198 1.10

1600-8MGT 200 1.10

1760-8MGT 220 1.10

1800-8MGT 225 1.20

2000-8MGT 250 1.20

2200-8MGT 275 1.20

2400-8MGT 300 1.20

Pitch/Length

Designation No. of

Teeth Correction

Factor

2600-8MGT 325 1.20

2800-8MGT 350 1.20

3048-8MGT 381 1.20

3280-8MGT 410 1.20

3600-8MGT 450 1.20

4400-8MGT 550 1.20

8M PowerGrip GT2 Belt Length Correction Factor

14M PowerGrip®GT®2 Power Rating Table — 40mm Belt Width

14M PowerGrip GT2 Power Rating Table — 55mm Belt Width

The Driving Force in Power Transmission. Page 49

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

4.912 29

5.088 30

5.263 32

5.614 34

5.965 36

6.316 38

6.667 40

7.018 44

7.720 48

8.421 52

9.123 56

9.825 60

10.527 64

11.229 68

11.930 72

12.632 80

14.036

*10 0.56 0.58 0.60 0.65 0.70 0.74 0.79 0.83 0.92 1.01 1.10 1.19 1.28 1.37 1.46 1.55 1.72

*20 1.04 1.09 1.13 1.22 1.31 1.40 1.48 1.57 1.74 1.91 2.08 2.25 2.42 2.59 2.75 2.92 3.25

*40 1.95 2.04 2.12 2.29 2.46 2.62 2.79 2.95 3.27 3.60 3.92 4.24 4.55 4.87 5.18 5.49 6.11

*60 2.81 2.94 3.06 3.30 3.54 3.78 4.02 4.26 4.73 5.19 5.66 6.12 6.58 7.03 7.49 7.94 8.83

*100 4.44 4.64 4.83 5.22 5.60 5.98 6.36 6.74 7.49 8.23 8.97 9.71 10.4 11.2 11.9 12.6 14.0

*200 8.21 8.58 8.94 9.67 10.4 11.1 11.8 12.5 13.9 15.3 16.7 18.1 19.4 20.8 22.1 23.5 26.1

*300 11.7 12.3 12.8 13.8 14.9 15.9 16.9 17.9 20.0 22.0 23.9 25.9 27.9 29.8 31.7 33.6 37.4

*400 15.1 15.8 16.4 17.8 19.1 20.5 21.8 23.1 25.7 28.3 30.9 33.4 35.9 38.4 40.9 43.4 48.3

*500 18.3 19.1 20.0 21.6 23.3 24.9 26.5 28.1 31.3 34.5 37.6 40.7 43.7 46.8 49.8 52.8 58.7

*600 21.4 22.4 23.4 25.3 27.3 29.2 31.1 33.0 36.7 40.4 44.1 47.7 51.3 54.8 58.4 61.9 68.8

800 27.5 28.7 30.0 32.5 35.0 37.4 39.9 42.3 47.1 51.9 56.6 61.2 65.8 70.3 74.8 79.3 88.0

870 29.5 30.9 32.2 34.9 37.6 40.2 42.9 45.5 50.6 55.7 60.8 65.8 70.7 75.6 80.4 85.1 94.5

1000 33.2 34.8 36.3 39.3 42.3 45.3 48.3 51.2 57.1 62.8 68.5 74.1 79.6 85.0 90.4 95.7 106.2

1160 37.7 39.4 41.1 44.6 48.0 51.4 54.8 58.1 64.7 71.2 77.6 84.0 90.2 96.3 102.3 108.3 119.9

1200 38.7 40.6 42.3 45.9 49.4 52.9 56.4 59.8 66.6 73.3 79.9 86.4 92.8 99.0 105.2 111.3 123.2

1400 44.1 46.2 48.2 52.3 56.3 60.3 64.2 68.1 75.8 83.4 90.8 98.1 105.3 112.3 119.2 126.0 139.2

1600 49.3 51.6 53.9 58.4 62.9 67.3 71.7 76.1 84.7 93.1 101.3 109.4 117.2 125.0 132.5 139.8 154.0

1750 53.1 55.5 58.0 62.9 67.7 72.5 77.2 81.9 91.1 100.1 108.9 117.4 125.8 134.0 141.9 149.6 164.3

2000 59.2 61.9 64.7 70.1 75.5 80.8 86.1 91.3 101.4 111.3 120.9 130.2 139.3 148.0 156.5

2400 68.5 71.7 74.9 81.2 87.3 93.4 99.4 105.3 116.8 127.9 138.6 148.8

2800 77.3 80.9 84.4 91.5 98.4 105.2 111.8 118.3 130.9 142.9

+3200 85.5 89.5 93.4 101.1 108.6 116.0 123.2 130.1 143.5

+3600 93.2 97.5 101.7 110.0 118.1 125.9 133.5

+4000 100.4 105.0 109.5 118.2 126.7 134.8

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

4.912 29

5.088 30

5.263 32

5.614 34

5.965 36

6.316 38

6.667 40

7.018 44

7.720 48

8.421 52

9.123 56

9.825 60

10.527 64

11.229 68

11.930 72

12.632 80

14.036

*10 0.83 0.87 0.90 0.97 1.04 1.11 1.18 1.25 1.39 1.52 1.66 1.79 1.92 2.06 2.19 2.32 2.58

*20 1.57 1.63 1.70 1.83 1.96 2.09 2.23 2.36 2.61 2.87 3.13 3.38 3.63 3.88 4.13 4.38 4.87

*40 2.93 3.06 3.18 3.43 3.68 3.93 4.18 4.42 4.91 5.40 5.88 6.36 6.83 7.30 7.77 8.24 9.17

*60 4.22 4.40 4.59 4.95 5.31 5.67 6.03 6.38 7.09 7.79 8.49 9.18 9.87 10.6 11.2 11.9 13.2

*100 6.66 6.96 7.25 7.82 8.40 8.97 9.54 10.1 11.2 12.4 13.5 14.6 15.7 16.7 17.8 18.9 21.0

*200 12.3 12.9 13.4 14.5 15.6 16.7 17.7 18.8 20.9 23.0 25.0 27.1 29.1 31.2 33.2 35.2 39.1

*300 17.6 18.4 19.2 20.7 22.3 23.8 25.4 26.9 29.9 32.9 35.9 38.9 41.8 44.7 47.6 50.5 56.1

*400 22.6 23.7 24.7 26.7 28.7 30.7 32.7 34.7 38.6 42.5 46.3 50.1 53.9 57.7 61.4 65.1 72.4

*500 27.5 28.7 30.0 32.4 34.9 37.3 39.8 42.2 47.0 51.7 56.4 61.0 65.6 70.2 74.7 79.2 88.0

*600 32.2 33.6 35.1 38.0 40.9 43.8 46.6 49.4 55.1 60.6 66.1 71.5 76.9 82.3 87.6 92.8 103.2

800 41.2 43.1 45.0 48.7 52.4 56.1 59.8 63.5 70.7 77.8 84.8 91.8 98.7 105.5 112.2 118.9 132.0

870 44.2 46.3 48.3 52.4 56.4 60.3 64.3 68.2 76.0 83.6 91.2 98.7 106.0 113.3 120.6 127.7 141.7

1000 49.8 52.1 54.4 59.0 63.5 68.0 72.4 76.9 85.6 94.2 102.7 111.1 119.4 127.6 135.6 143.6 159.2

1160 56.5 59.1 61.7 66.9 72.0 77.1 82.2 87.2 97.1 106.9 116.5 125.9 135.3 144.5 153.5 162.4 179.8

1200 58.1 60.8 63.5 68.8 74.1 79.4 84.6 89.7 99.9 110.0 119.8 129.6 139.1 148.6 157.8 167.0 184.8

1400 66.1 69.2 72.3 78.4 84.4 90.4 96.3 102.2 113.7 125.1 136.2 147.2 158.0 168.5 178.9 189.0 208.7

1600 73.9 77.4 80.8 87.6 94.3 101.0 107.6 114.2 127.0 139.6 152.0 164.0 175.9 187.4 198.7 209.7 231.0

1750 79.6 83.3 87.0 94.3 101.6 108.8 115.9 122.9 136.7 150.1 163.3 176.2 188.7 200.9 212.8 224.4 246.5

2000 88.7 92.9 97.0 105.2 113.3 121.3 129.1 136.9 152.1 166.9 181.3 195.3 208.9 222.0 234.7

2400 102.7 107.5 112.3 121.7 131.0 140.2 149.1 158.0 175.2 191.9 207.9 223.3

+2800 115.9 121.3 126.7 137.2 147.6 157.7 167.7 177.5 196.3 214.3

+3200 128.3 134.2 140.1 151.7 163.0 174.0 184.7 195.2 215.3

+3600 139.8 146.3 152.6 165.0 177.1 188.8 200.2

+4000 150.6 157.5 164.2 177.3 190.0 202.2

* 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]

Pitch/Length

Designation No. of

Teeth Correction

Factor

966-14MGT 69 0.80

1190-14MGT 85 0.80

1400-14MGT 100 0.90

1610-14MGT 115 0.90

1778-14MGT 127 0.95

Pitch/Length

Designation No. of

Teeth Correction

Factor

1890-14MGT 135 0.95

2100-14MGT 150 1.00

2310-14MGT 165 1.00

2450-14MGT 175 1.00

2590-14MGT 185 1.05

Pitch/Length

Designation No. of

Teeth Correction

Factor

2800-14MGT 200 1.05

3150-14MGT 225 1.05

3360-14MGT 240 1.10

3500-14MGT 250 1.10

3850-14MGT 275 1.10

Pitch/Length

Designation No. of

Teeth Correction

Factor

4326-14MGT 309 1.10

4578-14MGT 327 1.10

4956-14MGT 354 1.10

5320-14MGT 380 1.10

5740-14MGT 410 1.10

14M PowerGrip GT2 Belt Length Correction Factor Table

14M PowerGrip®GT®2 Power Rating Table — 85mm Belt Width

14M PowerGrip GT2 Power Rating Table — 115mm Belt Width

Page 50 The Gates Rubber Company

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

4.912 29

5.088 30

5.263 32

5.614 34

5.965 36

6.316 38

6.667 40

7.018 44

7.720 48

8.421 52

9.123 56

9.825 60

10.527 64

11.229 68

11.930 72

12.632 80

14.036

*10 1.39 1.45 1.51 1.62 1.74 1.85 1.97 2.08 2.31 2.54 2.76 2.98 3.20 3.43 3.64 3.86 4.30

*20 2.61 2.72 2.83 3.05 3.27 3.49 3.71 3.93 4.36 4.78 5.21 5.63 6.05 6.47 6.88 7.30 8.12

*40 4.89 5.10 5.30 5.72 6.14 6.55 6.96 7.37 8.19 8.99 9.80 10.6 11.4 12.2 13.0 13.7 15.3

*60 7.03 7.34 7.64 8.25 8.85 9.45 10.0 10.6 11.8 13.0 14.1 15.3 16.4 17.6 18.7 19.8 22.1

*100 11.1 11.6 12.1 13.0 14.0 15.0 15.9 16.8 18.7 20.6 22.4 24.3 26.1 27.9 29.7 31.5 35.0

*200 20.5 21.5 22.4 24.2 26.0 27.8 29.5 31.3 34.8 38.3 41.7 45.2 48.6 51.9 55.3 58.6 65.2

*300 29.3 30.7 32.0 34.6 37.2 39.7 42.3 44.8 49.9 54.9 59.9 64.8 69.7 74.5 79.3 84.1 93.6

*400 37.7 39.4 41.1 44.5 47.8 51.2 54.5 57.8 64.3 70.8 77.2 83.6 89.9 96.1 102.3 108.5 120.7

*500 45.8 47.9 49.9 54.1 58.2 62.2 66.3 70.3 78.3 86.1 93.9 101.7 109.3 116.9 124.5 131.9 146.7

*600 53.6 56.1 58.5 63.3 68.2 72.9 77.7 82.4 91.8 101.0 110.2 119.2 128.2 137.1 145.9 154.7 171.9

800 68.6 71.8 74.9 81.2 87.4 93.6 99.7 105.8 117.8 129.6 141.4 153.0 164.5 175.8 187.1 198.2 220.1

870 73.7 77.2 80.5 87.3 93.9 100.6 107.1 113.7 126.6 139.4 152.0 164.4 176.7 188.9 200.9 212.8 236.2

1000 83.0 86.9 90.7 98.3 105.8 113.3 120.7 128.1 142.7 157.0 171.2 185.2 199.0 212.6 226.1 239.3 265.4

1160 94.1 98.5 102.9 111.5 120.1 128.6 137.0 145.3 161.9 178.1 194.1 209.9 225.4 240.8 255.8 270.7 299.7

1200 96.9 101.4 105.8 114.7 123.6 132.3 141.0 149.6 166.6 183.3 199.7 215.9 231.9 247.6 263.1 278.3 308.0

1400 110.2 115.4 120.5 130.6 140.7 150.6 160.5 170.3 189.6 208.5 227.1 245.3 263.3 280.9 298.1 315.1 347.9

1600 123.2 129.0 134.7 146.0 157.2 168.4 179.4 190.3 211.7 232.7 253.3 273.4 293.1 312.4 331.2 349.6 385.0

1750 132.6 138.8 145.0 157.2 169.3 181.3 193.1 204.8 227.8 250.2 272.2 293.6 314.5 334.9 354.7 374.0 410.8

+2000 147.9 154.9 161.7 175.3 188.8 202.1 215.2 228.1 253.5 278.2 302.2 325.6 348.2 370.1 391.2

+2400 171.2 179.2 187.2 202.9 218.4 233.6 248.6 263.3 292.1 319.8 346.5 372.1

+2800 193.2 202.2 211.1 228.7 246.0 262.9 279.5 295.8 327.2 357.2

+3200 213.8 223.7 233.5 252.8 271.6 290.0 307.9 325.4 358.8

+3600 233.1 243.8 254.4 275.1 295.2 314.7 333.7

+4000 251.0 262.4 273.6 295.5 316.7 337.1

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

4.912 29

5.088 30

5.263 32

5.614 34

5.965 36

6.316 38

6.667 40

7.018 44

7.720 48

8.421 52

9.123 56

9.825 60

10.527 64

11.229 68

11.930 72

12.632 80

14.036

*10 1.94 2.03 2.11 2.27 2.43 2.59 2.75 2.92 3.23 3.55 3.86 4.18 4.49 4.80 5.10 5.41 6.02

*20 3.65 3.81 3.96 4.27 4.58 4.89 5.19 5.50 6.10 6.70 7.29 7.88 8.47 9.06 9.64 10.2 11.4

*40 6.84 7.13 7.43 8.01 8.59 9.17 9.75 10.3 11.5 12.6 13.7 14.8 15.9 17.0 18.1 19.2 21.4

*60 9.85 10.3 10.7 11.5 12.4 13.2 14.1 14.9 16.5 18.2 19.8 21.4 23.0 24.6 26.2 27.8 30.9

*100 15.5 16.2 16.9 18.3 19.6 20.9 22.3 23.6 26.2 28.8 31.4 34.0 36.5 39.1 41.6 44.1 49.0

*200 28.8 30.0 31.3 33.8 36.4 38.9 41.3 43.8 48.7 53.6 58.4 63.2 68.0 72.7 77.4 82.1 91.3

*300 41.1 42.9 44.7 48.4 52.0 55.6 59.2 62.8 69.9 76.9 83.8 90.7 97.5 104.3 111.1 117.8 131.0

*400 52.8 55.2 57.6 62.3 67.0 71.7 76.3 80.9 90.1 99.1 108.1 117.0 125.8 134.6 143.2 151.8 168.9

*500 64.1 67.0 69.9 75.7 81.4 87.1 92.8 98.4 109.6 120.6 131.5 142.3 153.1 163.7 174.2 184.7 205.4

*600 75.1 78.5 81.9 88.7 95.4 102.1 108.8 115.4 128.5 141.4 154.2 166.9 179.5 192.0 204.3 216.5 240.7

800 96.1 100.5 104.9 113.7 122.4 131.0 139.5 148.1 164.9 181.5 197.9 214.2 230.3 246.2 261.9 277.4 308.1

870 103.2 108.0 112.7 122.2 131.5 140.8 150.0 159.1 177.3 195.1 212.8 230.2 247.4 264.5 281.3 298.0 330.7

1000 116.2 121.6 127.0 137.6 148.2 158.6 169.0 179.3 199.7 219.8 239.7 259.2 278.6 297.7 316.5 335.1 371.6

1160 131.8 137.9 144.0 156.1 168.1 180.0 191.8 203.5 226.6 249.3 271.8 293.8 315.6 337.1 358.1 379.0 419.6

1200 135.6 141.9 148.2 160.6 173.0 185.2 197.4 209.4 233.2 256.6 279.6 302.3 324.7 346.7 368.3 389.6 431.2

+1400 154.3 161.5 168.7 182.9 197.0 210.9 224.7 238.4 265.4 291.9 317.9 343.5 368.6 393.2 417.4 441.1 487.1

+1600 172.5 180.5 188.5 204.4 220.1 235.7 251.1 266.4 296.4 325.8 354.6 382.8 410.4 437.4 463.7 489.4 538.9

+1750 185.7 194.4 203.0 220.1 237.0 253.8 270.3 286.7 318.9 350.3 381.0 411.0 440.3 468.8 496.6 523.5 575.1

+2000 207.1 216.8 226.4 245.5 264.3 282.9 301.3 319.4 354.9 389.5 423.1 455.8 487.4 518.1 547.7

+2400 239.7 250.9 262.0 284.0 305.7 327.0 348.0 368.7 408.9 447.7 485.1 521.0

+2800 270.4 283.1 295.5 320.2 344.4 368.1 391.3 414.1 458.1 500.1

+3200 299.3 313.2 326.9 353.9 380.2 406.0 431.1 455.5 502.4

+3600 326.3 341.3 356.1 385.1 413.3 440.6 467.1

+4000 351.4 367.4 383.1 413.7 443.3 471.9

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

* 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.

14M PowerGrip®GT®2 Power Rating Table — 170mm Belt Width

The Driving Force in Power Transmission. Page 51

RPM

Faster

Shaft

Base Rated Horsepower for Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

6.316 38

6.667 40

7.018 44

7.720 48

8.421 52

9.123 56

9.825 60

10.527 64

11.229 68

11.930 72

12.632 80

14.036

*10 3.94 4.19 4.43 4.91 5.39 5.87 6.35 6.82 7.29 7.76 8.22 9.15

*20 7.43 7.89 8.35 9.27 10.2 11.1 12.0 12.9 13.8 14.6 15.5 17.3

*40 13.9 14.8 15.7 17.4 19.1 20.8 22.5 24.2 25.9 27.6 29.2 32.5

*60 20.1 21.4 22.6 25.1 27.6 30.1 32.6 35.0 37.4 39.8 42.2 47.0

*100 31.8 33.8 35.9 39.8 43.8 47.7 51.6 55.5 59.4 63.2 67.0 74.5

*200 59.1 62.8 66.6 74.1 81.5 88.8 96.1 103.4 110.5 117.7 124.8 138.8

*300 84.6 90.0 95.4 106.2 116.8 127.4 137.9 148.3 158.6 168.8 179.0 199.1

*400 108.9 116.0 123.0 136.9 150.6 164.3 177.8 191.2 204.5 217.7 230.8 256.8

*500 132.4 141.0 149.6 166.5 183.3 199.9 216.3 232.7 248.8 264.8 280.8 312.2

*600 155.2 165.3 175.4 195.3 214.9 234.4 253.7 272.8 291.8 310.5 329.1 365.9

800 199.1 212.1 225.0 250.6 275.9 300.9 325.6 350.0 374.2 398.0 421.7 468.3

870 214.0 228.0 241.9 269.4 296.6 323.4 349.9 376.1 402.0 427.6 452.9 502.7

1000 241.1 256.9 272.6 303.6 334.1 364.3 394.1 423.4 452.4 481.0 509.3 564.8

1160 273.6 291.5 309.3 344.4 379.0 413.1 446.7 479.7 512.3 544.4 576.0 637.8

+1200 281.6 300.0 318.3 354.4 390.0 425.0 459.5 493.5 526.9 559.8 592.2 655.5

+1400 320.6 341.6 362.4 403.4 443.6 483.2 522.1 560.2 597.7 634.4 670.4 740.4

+1600 358.3 381.7 404.9 450.5 495.2 539.0 581.8 623.8 664.8 704.8 743.9 819.2

+1750 385.8 410.9 435.8 484.7 532.5 579.2 624.8 669.3 712.6 754.8 795.8 874.2

+2000 430.0 457.9 485.5 539.5 592.0 643.1 692.8 740.9 787.5 832.4

+2400 497.1 529.0 560.3 621.5 680.5 737.3 791.9

+2800 559.5 594.8 629.4 696.3 760.1

+3200 617.1 655.2 692.4 763.6

+3600 669.7 710.0

+4000 717.3

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

Pitch/Length

Designation No. of

Teeth Correction

Factor

966-14MGT 69 0.80

1190-14MGT 85 0.80

1400-14MGT 100 0.90

1610-14MGT 115 0.90

1778-14MGT 127 0.95

Pitch/Length

Designation No. of

Teeth Correction

Factor

1890-14MGT 135 0.95

2100-14MGT 150 1.00

2310-14MGT 165 1.00

2450-14MGT 175 1.00

2590-14MGT 185 1.05

Pitch/Length

Designation No. of

Teeth Correction

Factor

2800-14MGT 200 1.05

3150-14MGT 225 1.05

3360-14MGT 240 1.10

3500-14MGT 250 1.10

3850-14MGT 275 1.10

Pitch/Length

Designation No. of

Teeth Correction

Factor

4326-14MGT 309 1.10

4578-14MGT 327 1.10

4956-14MGT 354 1.10

5320-14MGT 380 1.10

5740-14MGT 410 1.10

14M PowerGrip GT2 Belt Length Correction Factor Table

* 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.

20mm Pitch PowerGrip®GT®2 Belts Drive Selection Table

Page 52 The Gates Rubber Company

Pulley Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No. of

grooves

Pitch

Diameter

(inches) No. of

grooves

Pitch

Diameter

(inches)

2000-20M

P.L. 78.740

100 teeth

2500-20M

P.L. 98.425

125 teeth

3400-20M

P.L. 133.858

170 teeth

3800-20M

P.L. 149.606

190 teeth

4200-20M

P.L. 165.354

210 teeth

4600-20M

P.L. 181.102

230 teeth

5000-20M

P.L. 196.850

250 teeth

5200-20M

P.L. 204.724

260 teeth

5400-20M

P.L. 212.598

270 teeth

5600-20M

P.L. 220.472

280 teeth

5800-20M

P.L. 228.346

290 teeth

6000-20M

P.L. 236.220

300 teeth

6200-20M

P.L. 244.094

310 teeth

6400-20M

P.L. 251.969

320 teeth

6600-20M

P.L. 259.843

330 teeth

34 8.522 34 8.522 1.000 25.98 35.83 53.54 61.42 69.29 77.16 85.04 88.98 92.91 96.85 100.79 104.72 108.66 112.60 116.54

36 9.023 36 9.023 1.000 25.20 35.04 52.76 60.63 68.50 76.38 84.25 88.19 92.13 96.06 100.00 103.94 107.87 111.81 115.75

38 9.524 38 9.524 1.000 24.41 34.25 51.97 59.84 67.72 75.59 83.46 87.40 91.34 95.28 99.21 103.15 107.09 111.02 114.96

40 10.025 40 10.025 1.000 23.62 33.47 51.18 59.06 66.93 74.80 82.68 86.61 90.55 94.49 98.43 102.36 106.30 110.24 114.17

44 11.028 44 11.028 1.000 22.05 31.89 49.61 57.48 65.35 73.23 81.10 85.04 88.98 92.91 96.85 100.79 104.72 108.66 112.60

48 12.031 48 12.031 1.000 20.47 30.31 48.03 55.90 63.78 71.65 79.53 83.46 87.40 91.34 95.27 99.21 103.15 107.09 111.02

52 13.033 52 13.033 1.000 18.90 28.74 46.46 54.33 62.20 70.08 77.95 81.89 85.83 89.76 93.70 97.64 101.57 105.51 109.45

56 14.036 56 14.036 1.000 17.32 27.16 44.88 52.76 60.63 68.50 76.38 80.31 84.25 88.19 92.13 96.06 100.00 103.94 107.87

60 15.038 60 15.038 1.000 25.59 43.31 51.18 59.06 66.93 74.80 78.74 82.68 86.61 90.55 94.49 98.43 102.36 106.30

64 16.041 64 16.041 1.000 24.02 41.73 49.61 57.48 65.35 73.23 77.16 81.10 85.04 88.98 92.91 96.85 100.79 104.72

68 17.043 68 17.043 1.000 22.44 40.16 48.03 55.91 63.78 71.65 75.59 79.53 83.46 87.40 91.34 95.28 99.21 103.15

72 18.046 72 18.046 1.000 20.87 38.58 46.46 54.33 62.20 70.08 74.02 77.95 81.89 85.83 89.76 93.70 97.64 101.57

80 20.051 80 20.051 1.000 35.43 43.31 51.18 59.05 66.93 70.87 74.80 78.74 82.68 86.61 90.55 94.49 98.43

90 22.557 90 22.557 1.000 31.50 39.37 47.24 55.12 62.99 66.93 70.87 74.80 78.74 82.68 86.61 90.55 94.49

38 9.524 40 10.025 1.053 24.01 33.86 51.57 59.45 67.32 75.20 83.07 87.01 90.94 94.88 98.82 102.76 106.69 110.63 114.57

36 9.023 38 9.524 1.056 24.80 34.64 52.36 60.24 68.11 75.98 83.86 87.79 91.73 95.67 99.61 103.54 107.48 111.42 115.35

34 8.522 36 9.023 1.059 25.59 35.43 53.15 61.02 68.90 76.77 84.64 88.58 92.52 96.46 100.39 104.33 108.27 112.20 116.14

68 17.043 72 18.046 1.059 21.65 39.37 47.24 55.12 62.99 70.86 74.80 78.74 82.68 86.61 90.55 94.49 98.42 102.36

64 16.041 68 17.043 1.063 23.22 40.94 48.82 56.69 64.56 72.44 76.38 80.31 84.25 88.19 92.12 96.06 100.00 103.94

60 15.038 64 16.041 1.067 24.80 42.52 50.39 58.27 66.14 74.01 77.95 81.89 85.83 89.76 93.70 97.64 101.57 105.51

56 14.036 60 15.038 1.071 16.53 26.37 44.09 51.97 59.84 67.71 75.59 79.53 83.46 87.40 91.34 95.27 99.21 103.15 107.09

52 13.033 56 14.036 1.077 18.10 27.95 45.67 53.54 61.42 69.29 77.16 81.10 85.04 88.97 92.91 96.85 100.79 104.72 108.66

48 12.031 52 13.033 1.083 19.68 29.52 47.24 55.12 62.99 70.86 78.74 82.68 86.61 90.55 94.49 98.42 102.36 106.30 110.24

44 11.028 48 12.031 1.091 21.25 31.10 48.82 56.69 64.56 72.44 80.31 84.25 88.19 92.12 96.06 100.00 103.94 107.87 111.81

40 10.025 44 11.028 1.100 22.83 32.67 50.39 58.27 66.14 74.01 81.89 85.83 89.76 93.70 97.64 101.57 105.51 109.45 113.39

36 9.023 40 10.025 1.111 24.40 34.25 51.97 59.84 67.71 75.59 83.46 87.40 91.34 95.27 99.21 103.15 107.09 111.02 114.96

72 18.046 80 20.051 1.111 36.99 44.87 52.75 60.62 68.50 72.43 76.37 80.31 84.25 88.18 92.12 96.06 100.00

34 8.522 38 9.524 1.118 25.19 35.04 52.75 60.63 68.50 76.38 84.25 88.19 92.12 96.06 100.00 103.94 107.87 111.81 115.75

64 16.041 72 18.046 1.125 22.42 40.14 48.02 55.90 63.77 71.65 75.58 79.52 83.46 87.40 91.33 95.27 99.21 103.14

80 20.051 90 22.557 1.125 33.44 41.32 49.20 57.07 64.95 68.89 72.82 76.76 80.70 84.64 88.57 92.51 96.45

60 15.038 68 17.043 1.133 24.00 41.72 49.60 57.47 65.35 73.22 77.16 81.10 85.03 88.97 92.91 96.85 100.78 104.72

56 14.036 64 16.041 1.143 25.57 43.29 51.17 59.05 66.92 74.80 78.73 82.67 86.61 90.55 94.48 98.42 102.36 106.29

52 13.033 60 15.038 1.154 17.29 27.15 44.87 52.75 60.62 68.50 76.37 80.31 84.25 88.18 92.12 96.06 100.00 103.93 107.87

38 9.524 44 11.028 1.158 23.22 33.06 50.78 58.66 66.53 74.41 82.28 86.22 90.15 94.09 98.03 101.97 105.90 109.84 113.78

48 12.031 56 14.036 1.167 18.87 28.72 46.45 54.32 62.20 70.07 77.95 81.88 85.82 89.76 93.69 97.63 101.57 105.51 109.44

34 8.522 40 10.025 1.176 24.79 34.64 52.36 60.23 68.11 75.98 83.85 87.79 91.73 95.67 99.60 103.54 107.48 111.42 115.35

68 17.043 80 20.051 1.176 20.02 37.77 45.64 53.52 61.40 69.28 73.21 77.15 81.09 85.03 88.96 92.90 96.84 100.78

44 11.028 52 13.033 1.182 20.45 30.30 48.02 55.90 63.77 71.65 79.52 83.46 87.40 91.33 95.27 99.21 103.14 107.08 111.02

40 10.025 48 12.031 1.200 22.02 31.87 49.60 57.47 65.35 73.22 81.10 85.03 88.97 92.91 96.85 100.78 104.72 108.66 112.59

60 15.038 72 18.046 1.200 23.18 40.92 48.80 56.67 64.55 72.43 76.36 80.30 84.24 88.18 92.11 96.05 99.99 103.93

56 14.036 68 17.043 1.214 24.76 42.49 50.37 58.25 66.12 74.00 77.94 81.88 85.81 89.75 93.69 97.63 101.56 105.50

36 9.023 44 11.028 1.222 23.60 33.45 51.17 59.05 66.92 74.80 82.67 86.61 90.55 94.48 98.42 102.36 106.29 110.23 114.17

52 13.033 64 16.041 1.231 16.47 26.33 44.07 51.95 59.82 67.70 75.58 79.51 83.45 87.39 91.33 95.26 99.20 103.14 107.08

90 22.557 112 28.071 1.244 27.03 34.93 42.83 50.71 58.60 62.54 66.48 70.42 74.36 78.30 82.24 86.18 90.12

Length Factor* 0.80 0.85 .095 1.0 1.05 1.1

*This length factor must be used to determine the proper belt width.

20mm Pitch PowerGrip®GT®2 Belts — (continued) Drive Selection Table

The Driving Force in Power Transmission. Page 53

Length Factor* 0.80 0.85 .095 1.0 1.05 1.1

*This length factor must be used to determine the proper belt width.

Pulley Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No. of

grooves

Pitch

Diameter

(inches) No. of

grooves

Pitch

Diameter

(inches)

2000-20M

P.L. 78.740

100 teeth

2500-20M

P.L. 98.425

125 teeth

3400-20M

P.L. 133.858

170 teeth

3800-20M

P.L. 149.606

190 teeth

4200-20M

P.L. 165.354

210 teeth

4600-20M

P.L. 181.102

230 teeth

5000-20M

P.L. 196.850

250 teeth

5200-20M

P.L. 204.724

260 teeth

5400-20M

P.L. 212.598

270 teeth

5600-20M

P.L. 220.472

280 teeth

5800-20M

P.L. 228.346

290 teeth

6000-20M

P.L. 236.220

300 teeth

6200-20M

P.L. 244.094

310 teeth

6400-20M

P.L. 251.969

320 teeth

6600-20M

P.L. 259.843

330 teeth

48 12.031 60 15.038 1.250 18.05 27.91 45.64 53.52 61.40 69.27 77.15 81.09 85.03 88.96 92.90 96.84 100.78 104.71 108.65

64 16.041 80 20.051 1.250 20.77 38.53 46.41 54.29 62.17 70.05 73.99 77.93 81.86 85.80 89.74 93.68 97.62 101.56

72 18.046 90 22.557 1.250 34.97 42.85 50.74 58.62 66.50 70.44 74.38 78.31 82.25 86.19 90.13 94.07 98.01

38 9.524 48 12.031 1.263 22.41 32.26 49.98 57.86 65.74 73.61 81.49 85.42 89.36 93.30 97.24 101.17 105.11 109.05 112.99

44 11.028 56 14.036 1.273 19.63 29.49 47.22 55.10 62.97 70.85 78.73 82.66 86.60 90.54 94.48 98.41 102.35 106.29 110.23

56 14.036 72 18.046 1.286 23.93 41.68 49.57 57.44 65.32 73.20 77.14 81.08 85.02 88.95 92.89 96.83 100.77 104.71

34 8.522 44 11.028 1.294 23.98 33.83 51.56 59.44 67.31 75.19 83.06 87.00 90.94 94.87 98.81 102.75 106.69 110.62 114.56

40 10.025 52 13.033 1.300 21.21 31.07 48.80 56.67 64.55 72.43 80.30 84.24 88.18 92.11 96.05 99.99 103.93 107.86 111.80

52 13.033 68 17.043 1.308 25.51 43.26 51.14 59.02 66.90 74.78 78.71 82.65 86.59 90.53 94.47 98.40 102.34 106.28

68 17.043 90 22.557 1.324 35.72 43.61 51.50 59.39 67.27 71.21 75.15 79.09 83.03 86.96 90.90 94.84 98.78

36 9.023 48 12.031 1.333 22.78 32.64 50.37 58.25 66.12 74.00 81.88 85.81 89.75 93.69 97.63 101.56 105.50 109.44 113.38

48 12.031 64 16.041 1.333 17.21 27.09 44.84 52.72 60.60 68.47 76.35 80.29 84.23 88.17 92.10 96.04 99.98 103.92 107.86

60 15.038 80 20.051 1.333 21.51 39.29 47.18 55.06 62.94 70.82 74.76 78.70 82.64 86.58 90.52 94.45 98.39 102.33

44 11.028 60 15.038 1.364 18.79 28.67 46.41 54.29 62.17 70.05 77.93 81.87 85.80 89.74 93.68 97.62 101.56 105.49 109.43

38 9.524 52 13.033 1.368 21.58 31.45 49.18 57.06 64.94 72.81 80.69 84.63 88.57 92.50 96.44 100.38 104.32 108.25 112.19

52 13.033 72 18.046 1.385 24.68 42.45 50.33 58.21 66.09 73.97 77.91 81.85 85.79 89.73 93.67 97.61 101.54 105.48

40 10.025 56 14.036 1.400 20.37 30.25 47.99 55.87 63.75 71.63 79.50 83.44 87.38 91.32 95.25 99.19 103.13 107.07 111.01

80 20.051 112 28.071 1.400 28.85 36.79 44.70 52.60 60.50 64.44 68.39 72.33 76.27 80.21 84.16 88.10 92.04

64 16.041 90 22.557 1.406 36.47 44.37 52.26 60.15 68.03 71.97 75.91 79.85 83.79 87.73 91.67 95.61 99.55

34 8.522 48 12.031 1.412 23.16 33.02 50.76 58.63 66.51 74.39 82.26 86.20 90.14 94.08 98.02 101.95 105.89 109.83 113.77

48 12.031 68 17.043 1.417 16.34 26.26 44.02 51.91 59.79 67.67 75.55 79.49 83.43 87.37 91.30 95.24 99.18 103.12 107.06

56 14.036 80 20.051 1.429 22.24 40.04 47.94 55.82 63.71 71.59 75.53 79.47 83.41 87.35 91.29 95.23 99.17 103.11

36 9.023 52 13.033 1.444 21.96 31.83 49.57 57.45 65.32 73.20 81.08 85.02 88.95 92.89 96.83 100.77 104.71 108.64 112.58

44 11.028 64 16.041 1.455 17.93 27.84 45.60 53.48 61.37 69.25 77.12 81.06 85.00 88.94 92.88 96.82 100.76 104.69 108.63

38 9.524 56 14.036 1.474 20.74 30.63 48.37 56.25 64.13 72.01 79.89 83.83 87.77 91.70 95.64 99.58 103.52 107.46 111.39

40 10.025 60 15.038 1.500 19.52 29.42 47.18 55.06 62.94 70.82 78.70 82.64 86.58 90.52 94.46 98.39 102.33 106.27 110.21

48 12.031 72 18.046 1.500 25.41 43.20 51.09 58.98 66.86 74.74 78.68 82.62 86.56 90.50 94.44 98.38 102.32 106.26

60 15.038 90 22.557 1.500 37.21 45.12 53.02 60.91 68.80 72.74 76.68 80.62 84.56 88.50 92.44 96.38 100.32

34 8.522 52 13.033 1.529 22.33 32.20 49.95 57.83 65.71 73.59 81.46 85.40 89.34 93.28 97.22 101.16 105.09 109.03 112.97

52 13.033 80 20.051 1.538 22.96 40.79 48.69 56.58 64.47 72.36 76.30 80.24 84.18 88.12 92.06 96.00 99.94 103.88

44 11.028 68 17.043 1.545 17.06 27.00 44.78 52.67 60.56 68.44 76.32 80.26 84.20 88.14 92.08 96.02 99.95 103.89 107.83

36 9.023 56 14.036 1.556 21.11 31.00 48.75 56.64 64.52 72.40 80.28 84.21 88.15 92.09 96.03 99.97 103.91 107.84 111.78

72 18.046 112 28.071 1.556 30.29 38.25 46.18 54.10 62.00 65.95 69.90 73.85 77.79 81.74 85.68 89.62 93.57

38 9.524 60 15.038 1.579 19.89 29.79 47.56 55.44 63.33 71.21 79.09 83.03 86.96 90.90 94.84 98.78 102.72 106.66 110.60

40 10.025 64 16.041 1.600 18.65 28.58 46.36 54.25 62.13 70.01 77.89 81.83 85.77 89.71 93.65 97.59 101.53 105.47 109.41

90 22.557 144 36.092 1.600 35.98 43.97 51.92 55.89 59.85 63.81 67.77 71.73 75.68 79.63 83.58

56 14.036 90 22.557 1.607 20.02 37.95 45.86 53.77 61.66 69.55 73.50 77.44 81.38 85.33 89.27 93.21 97.15 101.09

44 11.028 72 18.046 1.636 16.15 26.14 43.95 51.85 59.74 67.63 75.51 79.45 83.39 87.33 91.27 95.21 99.15 103.09 107.03

34 8.522 56 14.036 1.647 21.48 31.37 49.13 57.02 64.90 72.78 80.66 84.60 88.54 92.48 96.42 100.36 104.29 108.23 112.17

68 17.043 112 28.071 1.647 31.00 38.98 46.92 54.84 62.75 66.70 70.65 74.60 78.55 82.49 86.44 90.38 94.33

36 9.023 60 15.038 1.667 20.25 30.16 47.94 55.82 63.71 71.59 79.47 83.41 87.35 91.29 95.23 99.17 103.11 107.04 110.98

48 12.031 80 20.051 1.667 23.67 41.54 49.44 57.34 65.23 73.12 77.06 81.00 84.94 88.89 92.83 96.77 100.71 104.65

38 9.524 64 16.041 1.684 19.01 28.95 46.74 54.63 62.51 70.40 78.28 82.22 86.16 90.10 94.04 97.98 101.92 105.86 109.79

40 10.025 68 17.043 1.700 17.76 27.73 45.53 53.43 61.32 69.20 77.09 81.03 84.97 88.91 92.85 96.79 100.73 104.67 108.61

20mm Pitch PowerGrip®GT®2 Belts — (continued) Drive Selection Table

Page 54 The Gates Rubber Company

Pulley Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No. of

grooves

Pitch

Diameter

(inches) No. of

grooves

Pitch

Diameter

(inches)

2000-20M

P.L. 78.740

100 teeth

2500-20M

P.L. 98.425

125 teeth

3400-20M

P.L. 133.858

170 teeth

3800-20M

P.L. 149.606

190 teeth

4200-20M

P.L. 165.354

210 teeth

4600-20M

P.L. 181.102

230 teeth

5000-20M

P.L. 196.850

250 teeth

5200-20M

P.L. 204.724

260 teeth

5400-20M

P.L. 212.598

270 teeth

5600-20M

P.L. 220.472

280 teeth

5800-20M

P.L. 228.346

290 teeth

6000-20M

P.L. 236.220

300 teeth

6200-20M

P.L. 244.094

310 teeth

6400-20M

P.L. 251.969

320 teeth

6600-20M

P.L. 259.843

330 teeth

52 13.033 90 22.557 1.731 20.71 38.68 46.61 54.52 62.42 70.31 74.26 78.20 82.15 86.09 90.03 93.97 97.92 101.86

64 16.041 112 28.071 1.750 31.71 39.70 47.65 55.58 63.49 67.45 71.40 75.35 79.30 83.25 87.19 91.14 95.09

34 8.522 60 15.038 1.765 20.61 30.53 48.32 56.20 64.09 71.97 79.85 83.79 87.73 91.67 95.61 99.55 103.49 107.43 111.37

36 9.023 64 16.041 1.778 19.37 29.32 47.11 55.01 62.89 70.78 78.66 82.60 86.54 90.48 94.42 98.36 102.30 106.24 110.18

38 9.524 68 17.043 1.789 18.11 28.09 45.91 53.81 61.70 69.58 77.47 81.41 85.35 89.29 93.23 97.17 101.11 105.05 108.99

40 10.025 72 18.046 1.800 16.84 26.87 44.70 52.60 60.50 68.39 76.27 80.21 84.16 88.10 92.04 95.98 99.92 103.86 107.80

80 20.051 144 36.092 1.800 29.62 37.73 45.75 53.73 57.71 61.68 65.65 69.62 73.58 77.54 81.49 85.45

44 11.028 80 20.051 1.818 24.38 42.28 50.19 58.09 65.99 73.88 77.82 81.77 85.71 89.65 93.59 97.53 101.47 105.42

60 15.038 112 28.071 1.867 32.41 40.42 48.38 56.32 64.24 68.19 72.15 76.10 80.05 84.00 87.95 91.90 95.84

90 22.557 168 42.107 1.867 38.52 46.61 50.63 54.64 58.63 62.62 66.60 70.58 74.56 78.53

48 12.031 90 22.557 1.875 21.40 39.41 47.34 55.26 63.17 71.06 75.01 78.96 82.90 86.85 90.79 94.74 98.68 102.62

34 8.522 64 16.041 1.882 19.72 29.68 47.49 55.38 63.27 71.16 79.04 82.99 86.93 90.87 94.81 98.75 102.69 106.63 110.57

36 9.023 68 17.043 1.889 18.46 28.46 46.28 54.18 62.08 69.96 77.85 81.79 85.73 89.67 93.61 97.56 101.50 105.44 109.38

38 9.524 72 18.046 1.895 17.19 27.22 45.07 52.98 60.87 68.77 76.65 80.60 84.54 88.48 92.42 96.36 100.30 104.24 108.18

34 8.522 68 17.043 2.000 18.81 28.82 46.66 54.56 62.45 70.34 78.23 82.17 86.11 90.06 94.00 97.94 101.88 105.82 109.76

36 9.023 72 18.046 2.000 17.53 27.58 45.44 53.35 61.25 69.14 77.03 80.98 84.92 88.86 92.80 96.74 100.69 104.63 108.57

40 10.025 80 20.051 2.000 25.09 43.01 50.93 58.84 66.74 74.63 78.58 82.53 86.47 90.41 94.36 98.30 102.24 106.18

56 14.036 112 28.071 2.000 33.11 41.13 49.10 57.05 64.97 68.93 72.89 76.84 80.80 84.75 88.70 92.65 96.60

72 18.046 144 36.092 2.000 30.96 39.11 47.17 55.17 59.15 63.13 67.11 71.08 75.05 79.01 82.97 86.93

44 11.028 90 22.557 2.045 22.08 40.14 48.08 56.00 63.91 71.82 75.77 79.71 83.66 87.61 91.55 95.50 99.44 103.38

80 20.051 168 42.107 2.100 31.93 40.21 48.34 52.38 56.40 60.41 64.41 68.40 72.39 76.37 80.34

38 9.524 80 20.051 2.105 25.44 43.38 51.30 59.21 67.12 75.01 78.96 82.90 86.85 90.79 94.74 98.68 102.62 106.56

34 8.522 72 18.046 2.118 17.87 27.94 45.81 53.73 61.63 69.52 77.41 81.36 85.30 89.24 93.18 97.13 101.07 105.01 108.95

68 17.043 144 36.092 2.118 31.63 39.80 47.87 55.88 59.87 63.86 67.83 71.81 75.78 79.75 83.71 87.67

90 22.557 192 48.122 2.133 40.90 45.02 49.11 53.18 57.23 61.26 65.28 69.29 73.29

52 13.033 112 28.071 2.154 33.81 41.84 49.83 57.78 65.71 69.67 73.63 77.59 81.54 85.50 89.45 93.40 97.35

36 9.023 80 20.051 2.222 25.79 43.75 51.67 59.59 67.49 75.39 79.34 83.28 87.23 91.17 95.12 99.06 103.00 106.94

40 10.025 90 22.557 2.250 22.75 40.86 48.81 56.74 64.66 72.56 76.52 80.47 84.41 88.36 92.31 96.25 100.20 104.14

64 16.041 144 36.092 2.250 32.29 40.48 48.57 56.59 60.59 64.57 68.56 72.53 76.51 80.48 84.44 88.41

48 12.031 112 28.071 2.333 34.50 42.55 50.54 58.50 66.44 70.41 74.37 78.33 82.29 86.24 90.19 94.15 98.10

72 18.046 168 42.107 2.333 33.23 41.55 49.72 53.77 57.80 61.82 65.83 69.83 73.82 77.81 81.79

34 8.522 80 20.051 2.353 15.87 26.13 44.11 52.04 59.96 67.86 75.76 79.71 83.66 87.61 91.55 95.49 99.44 103.38 107.33

38 9.524 90 22.557 2.368 23.09 41.22 49.17 57.11 65.03 72.94 76.89 80.84 84.79 88.74 92.68 96.63 100.58 104.52

60 15.038 144 36.092 2.400 32.95 41.17 49.26 57.30 61.30 65.29 69.28 73.26 77.23 81.21 85.18 89.14

80 20.051 192 48.122 2.400 42.55 46.69 50.80 54.89 58.95 63.00 67.03 71.05 75.06

90 22.557 216 54.138 2.400 43.14 47.34 51.50 55.62 59.71 63.78 67.84

68 17.043 168 42.107 2.471 33.88 42.22 50.40 54.46 58.50 62.52 66.53 70.54 74.53 78.53 82.51

36 9.023 90 22.557 2.500 23.43 41.57 49.54 57.48 65.40 73.31 77.26 81.21 85.16 89.11 93.06 97.01 100.95 104.90

44 11.028 112 28.071 2.545 35.18 43.25 51.26 59.23 67.18 71.14 75.11 79.07 83.03 86.98 90.94 94.89 98.85

56 14.036 144 36.092 2.571 33.61 41.84 49.96 58.00 62.01 66.01 70.00 73.98 77.96 81.93 85.91 89.87

64 16.041 168 42.107 2.625 34.52 42.89 51.08 55.15 59.19 63.22 67.24 71.25 75.25 79.24 83.23

34 8.522 90 22.557 2.647 23.76 41.93 49.90 57.84 65.77 73.68 77.64 81.59 85.54 89.49 93.44 97.38 101.33 105.28

72 18.046 192 48.122 2.667 35.33 43.85 48.02 52.15 56.25 60.32 64.38 68.42 72.45 76.47

80 20.051 216 54.138 2.700 40.45 44.74 48.97 53.15 57.29 61.40 65.49 69.55

Length Factor* 0.80 0.85 .095 1.0 1.05 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.

20mm Pitch PowerGrip®GT®2 Belts — (continued) Drive Selection Table

The Driving Force in Power Transmission. Page 55

Pulley Combinations

Speed

Ratio

Center Distance, Inches

DriveR DriveN

No. of

grooves

Pitch

Diameter

(inches) No. of

grooves

Pitch

Diameter

(inches)

2000-20M

P.L. 78.740

100 teeth

2500-20M

P.L. 98.425

125 teeth

3400-20M

P.L. 133.858

170 teeth

3800-20M

P.L. 149.606

190 teeth

4200-20M

P.L. 165.354

210 teeth

4600-20M

P.L. 181.102

230 teeth

5000-20M

P.L. 196.850

250 teeth

5200-20M

P.L. 204.724

260 teeth

5400-20M

P.L. 212.598

270 teeth

5600-20M

P.L. 220.472

280 teeth

5800-20M

P.L. 228.346

290 teeth

6000-20M

P.L. 236.220

300 teeth

6200-20M

P.L. 244.094

310 teeth

6400-20M

P.L. 251.969

320 teeth

6600-20M

P.L. 259.843

330 teeth

52 13.033 144 36.092 2.769 25.72 34.26 42.52 50.65 58.71 62.72 66.72 70.71 74.70 78.68 82.66 86.63 90.60

40 10.025 112 28.071 2.800 35.87 43.95 51.97 59.95 67.90 71.87 75.84 79.80 83.77 87.73 91.68 95.64 99.59

60 15.038 168 42.107 2.800 35.16 43.55 51.76 55.83 59.88 63.92 67.94 71.95 75.96 79.95 83.95

68 17.043 192 48.122 2.824 35.96 44.50 48.68 52.82 56.92 61.00 65.06 69.11 73.15 77.17

38 9.524 112 28.071 2.947 36.21 44.30 52.33 60.31 68.27 72.24 76.21 80.17 84.13 88.09 92.05 96.01 99.96

48 12.031 144 36.092 3.000 26.33 34.91 43.19 51.34 59.41 63.42 67.43 71.42 75.42 79.40 83.38 87.36 91.33

56 14.036 168 42.107 3.000 35.79 44.21 52.44 56.52 60.57 64.61 68.64 72.66 76.66 80.67 84.66

64 16.041 192 48.122 3.000 36.58 45.15 49.34 53.48 57.59 61.68 65.75 69.80 73.84 77.87

72 18.046 216 54.138 3.000 37.27 41.70 46.02 50.27 54.46 58.62 62.74 66.84 70.92

36 9.023 112 28.071 3.111 36.55 44.65 52.68 60.67 68.63 72.60 76.57 80.54 84.50 88.46 92.42 96.38 100.34

68 17.043 216 54.138 3.176 37.88 42.32 46.66 50.91 55.12 59.28 63.41 67.52 71.60

60 15.038 192 48.122 3.200 37.20 45.80 49.99 54.15 58.27 62.36 66.43 70.49 74.54 78.57

52 13.033 168 42.107 3.231 36.43 44.87 53.12 57.20 61.26 65.30 69.34 73.36 77.37 81.38 85.37

44 11.028 144 36.092 3.273 26.95 35.56 43.87 52.03 60.11 64.13 68.14 72.14 76.13 80.12 84.10 88.08 92.06

34 8.522 112 28.071 3.294 36.89 45.00 53.03 61.03 68.99 72.97 76.94 80.90 84.87 88.83 92.79 96.75 100.71

64 16.041 216 54.138 3.375 38.49 42.95 47.29 51.56 55.77 59.94 64.08 68.19 72.28

56 14.036 192 48.122 3.429 37.82 46.44 50.65 54.81 58.94 63.04 67.12 71.18 75.23 79.26

48 12.031 168 42.107 3.500 28.16 37.06 45.52 53.79 57.88 61.94 66.00 70.03 74.06 78.07 82.08 86.08

40 10.025 144 36.092 3.600 27.57 36.21 44.54 52.71 60.80 64.83 68.84 72.85 76.84 80.84 84.82 88.81 92.78

60 15.038 216 54.138 3.600 39.10 43.57 47.92 52.20 56.42 60.60 64.74 68.86 72.96

52 13.033 192 48.122 3.692 38.44 47.09 51.30 55.47 59.60 63.71 67.80 71.86 75.92 79.96

38 9.524 144 36.092 3.789 27.87 36.53 44.87 53.05 61.15 65.18 69.19 73.20 77.20 81.19 85.18 89.17 93.15

44 11.028 168 42.107 3.818 28.76 37.69 46.18 54.46 58.56 62.63 66.68 70.73 74.76 78.78 82.79 86.79

56 14.036 216 54.138 3.857 39.70 44.19 48.55 52.84 57.07 61.25 65.41 69.53 73.63

36 9.023 144 36.092 4.000 28.18 36.86 45.20 53.39 61.50 65.53 69.54 73.55 77.56 81.55 85.54 89.53 93.51

48 12.031 192 48.122 4.000 39.06 47.73 51.95 56.13 60.27 64.38 68.47 72.55 76.60 80.65

52 13.033 216 54.138 4.154 40.31 44.80 49.18 53.48 57.72 61.91 66.07 70.20 74.30

40 10.025 168 42.107 4.200 29.36 38.32 46.83 55.13 59.23 63.31 67.37 71.42 75.45 79.48 83.49 87.50

34 8.522 144 36.092 4.235 28.48 37.18 45.53 53.73 61.84 65.87 69.90 73.91 77.91 81.91 85.90 89.89 93.87

44 11.028 192 48.122 4.364 30.35 39.67 48.37 52.60 56.79 60.93 65.05 69.15 73.23 77.29 81.34

38 9.524 168 42.107 4.421 29.65 38.64 47.16 55.46 59.57 63.65 67.72 71.76 75.80 79.83 83.85 87.86

48 12.031 216 54.138 4.500 40.91 45.42 49.81 54.12 58.36 62.56 66.73 70.86 74.98

36 9.023 168 42.107 4.667 29.95 38.95 47.48 55.80 59.91 63.99 68.06 72.11 76.15 80.18 84.20 88.21

40 10.025 192 48.122 4.800 30.93 40.29 49.01 53.25 57.44 61.60 65.72 69.83 73.91 77.98 82.03

44 11.028 216 54.138 4.909 41.51 46.04 50.44 54.75 59.01 63.22 67.39 71.53 75.65

34 8.522 168 42.107 4.941 30.24 39.26 47.81 56.13 60.24 64.33 68.40 72.45 76.50 80.53 84.55 88.56

38 9.524 192 48.122 5.053 31.22 40.60 49.32 53.57 57.77 61.93 66.06 70.16 74.25 78.32 82.38

36 9.023 192 48.122 5.333 31.51 40.90 49.64 53.89 58.10 62.26 66.39 70.50 74.59 78.66 82.72

40 10.025 216 54.138 5.400 42.11 46.65 51.06 55.39 59.65 63.87 68.05 72.19 76.32

34 8.522 192 48.122 5.647 31.80 41.21 49.96 54.22 58.42 62.59 66.73 70.84 74.93 79.00 83.06

38 9.524 216 54.138 5.684 32.56 42.41 46.96 51.38 55.71 59.97 64.19 68.37 72.53 76.65

36 9.023 216 54.138 6.000 32.84 42.71 47.26 51.69 56.02 60.30 64.52 68.70 72.86 76.99

34 8.522 216 54.138 6.353 33.12 43.01 47.57 52.00 56.34 60.62 64.84 69.03 73.19 77.32

Length Factor* 0.80 0.85 .095 1.0 1.05 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.

20M PowerGrip®GT®2 Power Rating Table — 115mm Belt Width

20M PowerGrip GT2 Power Rating Table — 170mm Belt Width

Page 56 The Gates Rubber Company

RPM

Faster

Shaft

Base Rated Horsepower For Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

8.522 36

9.023 38

9.524 40

10.026 44

11.028 48

12.031 52

13.033 56

14.036 60

15.038 64

16.041 68

17.043 72

18.046 80

20.051 90

22.557

*10 2.7 2.9 3.1 3.3 3.6 4.0 4.3 4.6 4.9 5.1 5.4 5.6 6.1 6.7

*20 5.4 5.8 6.1 6.5 7.3 7.9 8.6 9.2 9.8 10.3 10.8 11.3 12.3 13.5

*30 8.1 8.6 9.2 9.8 10.9 11.9 12.9 13.8 14.6 15.4 16.2 16.9 18.4 20.2

*40 10.7 11.5 12.3 13.0 14.5 15.8 17.1 18.5 19.5 20.6 21.6 22.6 24.5 26.9

*50 13.4 14.4 15.4 16.3 18.1 19.8 21.4 23.1 24.4 25.7 27.0 28.2 30.7 33.6

*60 16.1 17.3 18.4 19.6 21.8 23.7 25.7 27.7 29.3 30.8 32.4 33.9 36.8 40.3

*80 21.5 23.0 24.6 26.1 29.0 31.7 34.3 36.9 39.0 41.1 43.1 45.1 49.0 53.8

*100 26.9 28.8 30.7 32.6 36.3 39.6 42.9 46.1 48.8 51.4 53.9 56.4 61.3 67.2

*150 40.3 43.2 46.1 48.9 54.4 59.3 64.2 69.2 73.1 77.0 80.8 84.5 91.7 100.5

*200 53.7 57.5 61.4 65.2 72.4 79.0 85.6 92.1 97.4 102.5 107.5 112.4 122.1 133.7

*300 77.9 83.3 88.8 94.4 105.9 117.7 125.5 133.0 140.3 147.5 154.5 161.4 174.8 190.7

*400 98.0 104.7 111.6 118.5 132.8 147.4 156.9 165.9 174.8 183.4 191.8 200.0 215.7 234.2

*500 116.8 124.7 132.8 140.9 157.6 174.7 185.6 196.0 206.0 215.8 225.2 234.3 251.6 271.4

*600 134.5 143.5 152.6 161.8 180.7 199.9 212.0 223.4 234.3 244.8 254.9 264.5 282.5 302.4

730 155.9 166.1 176.5 187.0 208.3 229.9 243.0 255.3 266.9 277.9 288.2 297.9 315.2 333.1

800 166.8 177.6 188.5 199.6 222.0 244.7 258.3 270.8 282.5 293.5 303.7 313.1 329.3 344.9

870 177.2 188.6 200.1 211.7 235.1 258.7 272.5 285.1 296.8 307.6 317.4 326.2 340.8 353.3

970 191.4 203.5 215.6 227.9 252.5 277.2 291.1 303.5 314.8 324.9 333.7 341.3 352.6

1170 217.3 230.4 243.6 256.7 283.0 308.8 321.9 332.9 342.0 349.3 354.6 358.0 358.4

+1200 220.9 234.1 247.4 260.6 287.0 313.0 325.8 336.4 345.0 351.7 356.3 358.8 357.1

+1460 248.9 262.8 276.5 290.0 316.5 341.6 350.8 356.6 359.2 358.6 354.4

+1600 261.6 275.5 289.1 302.4 327.9 351.6 357.6 359.4 357.2

+1750 273.4 287.0 300.2 312.9 336.7 357.7 359.4 355.8

+2000 288.5 301.0 312.6 323.5 342.4 357.0

RPM

Faster

Shaft

Base Rated Horsepower For Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

8.522 36

9.023 38

9.524 40

10.026 44

11.028 48

12.031 52

13.033 56

14.036 60

15.038 64

16.041 68

17.043 72

18.046 80

20.051 90

22.557

*10 4.2 4.5 4.8 5.1 5.6 6.1 6.7 7.2 7.6 8.0 8.4 8.8 9.5 10.4

*20 8.3 8.9 9.5 10.1 11.3 12.3 13.3 14.3 15.2 16.0 16.8 17.5 19.0 20.9

*30 12.5 13.4 14.3 15.2 16.9 18.4 20.0 21.5 22.7 23.9 25.1 26.3 28.6 31.3

*40 16.7 17.9 19.1 20.3 22.5 24.6 26.6 28.7 30.3 31.9 33.5 35.1 38.1 41.8

*50 20.9 22.4 23.9 25.3 28.2 30.7 33.3 35.8 37.9 39.9 41.9 43.8 47.6 52.2

*60 25.0 26.8 28.6 30.4 33.8 36.9 39.9 43.0 45.5 47.9 50.2 52.6 57.1 62.6

*80 33.4 35.8 38.2 40.5 45.0 49.2 53.2 57.3 60.6 63.8 67.0 70.1 76.1 83.5

*100 41.7 44.7 47.7 50.6 56.3 61.4 66.5 71.6 75.8 79.8 83.7 87.6 95.1 104.3

*150 62.5 67.0 71.5 75.9 84.4 92.1 99.8 107.4 113.6 119.5 125.4 131.2 142.5 156.1

*200 83.4 89.4 95.3 101.2 112.5 122.7 132.9 143.1 151.3 159.2 167.0 174.6 189.6 207.6

*300 120.9 129.3 137.8 146.6 164.4 182.8 194.9 206.5 217.9 229.1 240.0 250.7 271.5 296.4

*400 152.3 162.7 173.3 184.1 206.3 229.0 243.7 257.8 271.6 285.0 298.1 310.8 335.4 364.3

*500 181.5 193.8 206.3 218.9 244.9 271.5 288.4 304.6 320.2 335.4 350.1 364.3 391.3 422.5

*600 208.9 222.9 237.1 251.4 280.8 310.7 329.5 347.3 364.4 380.8 396.6 411.7 439.9 471.3

730 242.3 258.2 274.3 290.6 323.8 357.5 378.0 397.2 415.4 432.7 448.9 464.2 491.7 520.3

800 259.2 276.1 293.1 310.3 345.3 380.7 401.9 421.5 440.0 457.3 473.4 488.2 514.3 539.7

870 275.5 293.2 311.1 329.1 365.7 402.6 424.2 444.0 462.5 479.5 495.1 509.2 533.0 553.9

970 297.7 316.5 335.4 354.5 393.0 431.6 453.4 473.1 491.0 507.1 521.4 533.7 552.6

1170 338.1 358.6 379.2 399.8 440.9 481.6 502.3 520.0 534.9 547.0 556.3 562.5 565.6

+1200 343.8 364.5 385.2 405.9 447.3 488.1 508.6 525.7 539.9 551.2 559.4 564.3 564.3

+1460 387.9 409.7 431.3 452.6 494.4 534.3 549.6 559.8 565.2 565.8 561.2

+1600 408.1 430.0 451.5 472.5 513.1 551.0 561.7 566.1 564.5

+1750 426.9 448.4 469.4 489.6 527.8 562.1 566.4 562.9

+2000 451.5 471.5 490.3 508.0 539.3 564.2

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]

20M PowerGrip®GT®2 Power Rating Table — 230mm Belt Width

20M PowerGrip GT2 Power Rating Table — 290mm Belt Width

The Driving Force in Power Transmission. Page 57

RPM

Faster

Shaft

Base Rated Horsepower For Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

9.524 40

10.026 44

11.028 48

12.031 52

13.033 56

14.036 60

15.038 64

16.041 68

17.043 72

18.046 80

20.051 90

22.557

*10 6.6 7.0 7.8 8.5 9.2 10.0 10.5 11.1 11.6 12.2 13.2 14.5

*20 13.2 14.1 15.6 17.1 18.5 19.9 21.1 22.2 23.3 24.3 26.4 29.0

*30 19.9 21.1 23.5 25.6 27.7 29.9 31.6 33.2 34.9 36.5 39.7 43.5

*40 26.5 28.1 31.3 34.1 37.0 39.8 42.1 44.3 46.5 48.7 52.9 58.0

*50 33.1 35.2 39.1 42.7 46.2 49.8 52.6 55.4 58.1 60.8 66.1 72.5

*60 39.7 42.2 46.9 51.2 55.5 59.7 63.1 66.5 69.8 73.0 79.3 87.0

*80 53.0 56.3 62.5 68.2 73.9 79.6 84.2 88.6 93.0 97.3 105.7 115.9

*100 66.2 70.3 78.2 85.3 92.4 99.5 105.2 110.8 116.2 121.6 132.1 144.8

*150 99.3 105.4 117.2 127.9 138.5 149.1 157.7 166.0 174.1 182.2 197.8 216.8

*200 132.3 140.5 156.2 170.4 184.5 198.6 210.0 221.0 231.9 242.5 263.3 288.3

*300 191.4 203.5 228.3 253.9 270.6 286.8 302.6 318.1 333.3 348.2 377.1 411.7

*400 240.7 255.7 286.4 318.0 338.4 358.0 377.2 395.8 414.0 431.7 465.9 506.1

*500 286.4 304.0 340.1 377.0 400.5 423.0 444.8 466.0 486.4 506.2 543.8 587.3

*600 329.2 349.2 390.0 431.6 457.7 482.5 506.3 529.2 551.2 572.2 611.6 655.6

730 381.0 403.7 449.8 496.6 525.2 552.0 577.4 601.5 624.3 645.6 684.3 724.6

800 407.2 431.1 479.7 529.0 558.5 585.9 611.7 635.9 658.5 679.4 716.1 752.2

870 432.2 457.3 508.2 559.5 589.7 617.4 643.2 667.1 689.0 708.9 742.6 772.8

970 466.1 492.6 546.2 600.0 630.5 658.1 683.3 705.9 726.1 743.7 770.9

+1170 527.1 555.8 613.2 670.0 699.2 724.1 745.4 762.8 776.2 785.6 791.6

+1200 535.6 564.5 622.2 679.2 708.0 732.2 752.6 768.8 780.8 788.5 790.3

+1460 600.1 630.0 688.5 744.5 766.4 781.4 790.0 791.9 786.8

+1600 628.6 658.1 715.1 768.5 784.3 791.6 790.7

+1750 654.0 682.5 736.4 785.0 792.3 788.8

+2000 684.2 709.3 754.1 790.2

RPM

Faster

Shaft

Base Rated Horsepower For Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

13.033 56

14.036 60

15.038 64

16.041 68

17.043 72

18.046 80

20.051 90

22.557

*10 11.8 12.7 13.5 14.2 14.9 15.6 16.9 18.6

*20 23.7 25.5 26.9 28.4 29.8 31.1 33.8 37.1

*30 35.5 38.2 40.4 42.5 44.6 46.7 50.8 55.7

*40 47.3 50.9 53.9 56.7 59.5 62.3 67.7 74.2

*50 59.1 63.7 67.3 70.9 74.4 77.8 84.6 92.8

*60 71.0 76.4 80.8 85.1 89.3 93.4 101.5 111.3

*80 94.6 101.9 107.7 113.4 119.0 124.5 135.3 148.3

*100 118.2 127.3 134.6 141.7 148.7 155.6 169.0 185.3

*150 177.3 190.8 201.8 212.4 222.9 233.1 253.2 277.5

*200 236.2 254.2 268.8 282.9 296.7 310.4 336.9 369.0

*300 346.3 367.0 387.3 407.1 426.6 445.6 482.6 527.0

*400 433.1 458.2 482.8 506.7 529.9 552.7 596.4 648.0

*500 512.7 541.5 569.4 596.5 622.7 648.1 696.3 752.1

*600 585.9 617.6 648.2 677.5 705.7 732.7 783.3 839.9

730 672.4 706.8 739.4 770.4 799.6 827.1 876.8 928.9

800 715.1 750.3 783.5 814.6 843.6 870.5 917.9 964.7

870 755.1 790.8 823.9 854.7 882.9 908.6 952.2 991.6

+970 807.6 843.1 875.5 904.8 930.8 953.7 989.2

+1170 896.1 928.3 955.8 978.5 996.2 1008.7 1017.6

+1200 907.4 938.8 965.2 986.4 1002.3 1012.7 1016.4

+1460 983.3 1003.1 1014.8 1018.0 1012.4

+1600 1007.0 1017.0 1016.8

+1750 1018.1 1014.8

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]

Pitch/Length

Designation No. of

Teeth Correction

Factor

2000-20M 100 0.80

2500-20M 125 0.85

3400-20M 170 0.95

3800-20M 190 1.00

Pitch/Length

Designation No. of

Teeth Correction

Factor

4200-20M 210 1.00

4600-20M 230 1.00

5000-20M 250 1.05

5200-20M 260 1.05

Pitch/Length

Designation No. of

Teeth Correction

Factor

5400-20M 270 1.05

5600-20M 280 1.05

5800-20M 290 1.10

6000-20M 300 1.10

Pitch/Length

Designation No. of

Teeth Correction

Factor

6200-20M 310 1.10

6400-20M 320 1.10

6600-20M 330 1.10

PowerGrip®GT®2 Belt Length Correction Factors

20M PowerGrip®GT®2 Power Rating Table — 340mm Belt Width

Page 58 The Gates Rubber Company

RPM

Faster

Shaft

Base Rated Horsepower For Small Sprocket

(Number of Grooves and Pitch Diameter, Inches)

13.033 56

14.036 60

15.038 64

16.041 68

17.043 72

18.046 80

20.051 90

22.557

*10 14.0 15.1 15.9 16.8 17.6 18.4 20.0 21.9

*20 28.0 30.1 31.9 33.5 35.2 36.8 40.0 43.9

*30 41.9 45.2 47.8 50.3 52.8 55.2 60.0 65.8

*40 55.9 60.2 63.7 67.1 70.4 73.6 80.0 87.7

*50 69.9 75.3 79.6 83.8 88.0 92.0 100.0 109.7

*60 83.9 90.3 95.5 100.6 105.5 110.4 120.0 131.6

*80 111.8 120.4 127.4 134.1 140.7 147.2 159.9 175.4

*100 139.8 150.5 159.2 167.6 175.8 183.9 199.8 219.1

*150 209.5 225.6 238.6 251.1 263.5 275.6 299.3 328.0

*200 279.2 300.5 317.8 334.4 350.8 366.9 398.3 436.3

*300 409.4 433.9 457.8 481.3 504.3 526.8 570.6 623.0

*400 512.0 541.8 570.8 599.0 626.6 653.4 705.1 766.2

*500 606.1 640.2 673.3 705.3 736.3 766.3 823.4 889.5

+*600 692.8 730.3 766.4 801.2 834.5 866.5 926.3 993.4

+730 795.1 835.8 874.4 911.1 945.7 978.3 1037.3 1099.2

+800 845.7 887.3 926.6 963.4 997.8 1029.8 1086.0 1141.8

+870 893.0 935.2 974.5 1011.0 1044.5 1075.0 1126.9 1174.0

+970 955.2 997.3 1035.7 1070.4 1101.4 1128.6 1171.1

+1170 1060.1 1098.4 1131.2 1158.3 1179.5 1194.6 1206.0

+1200 1073.5 1110.9 1142.4 1167.8 1186.9 1199.6 1204.7

+1460 1164.0 1187.8 1202.1 1206.4 1200.4

+1600 1192.5 1204.9 1205.3

+1750 1206.4 1203.1

* 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]

Pitch/Length

Designation No. of

Teeth Correction

Factor

2000-20M 100 0.80

2500-20M 125 0.85

3400-20M 170 0.95

3800-20M 190 1.00

Pitch/Length

Designation No. of

Teeth Correction

Factor

4200-20M 210 1.00

4600-20M 230 1.00

5000-20M 250 1.05

5200-20M 260 1.05

Pitch/Length

Designation No. of

Teeth Correction

Factor

5400-20M 270 1.05

5600-20M 280 1.05

5800-20M 290 1.10

6000-20M 300 1.10

Pitch/Length

Designation No. of

Teeth Correction

Factor

6200-20M 310 1.10

6400-20M 320 1.10

6600-20M 330 1.10

PowerGrip®GT®2 Belt Length Correction Factors

The Driving Force in Power Transmission. Page 59

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.

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.

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∅)

Pitch (circular pitch)

Outside

Diameter

Belt

Pitch

Line

Sprocket

Pitch

Circle

Pitch

Diameter

XL Pitch (.200) – Reference Dimensions

.200 in.

5.08mm

2.29mm

.090 in. 1.27mm

.050 in.

L Pitch (.375 ) – Reference Dimensions

.375 in.

9.53mm

3.43mm

.135 in. 1.91mm

.075 in.

H Pitch (.500 ) – Reference Dimensions

.500 in.

12.70mm

3.94mm

.155 in. 2.29mm

.090 in.

Gates PowerGrip®Timing Belts

Stock Belts

Page 60 The Gates Rubber Company

Length and Pitch

Designation Pitch Length

(in) Number

of Teeth

50XL 5.0 25

60XL 6.0 30

70XL 7.0 35

80XL 8.0 40

90XL 9.0 45

100XL 10.0 50

110XL 11.0 55

120XL 12.0 60

130XL 13.0 65

140XL 14.0 70

150XL 15.0 75

160XL 16.0 80

170XL 17.0 85

180XL 18.0 90

190XL 19.0 95

200XL 20.0 100

210XL 21.0 105

220XL 22.0 110

230XL 23.0 115

240XL 24.0 120

250XL 25.0 125

260XL 26.0 130

280XL 28.0 140

290XL 29.0 145

300XL 30.0 150

310XL 31.0 155

330XL 33.0 165

340XL 34.0 170

350XL 35.0 175

370XL 37.0 185

380XL 38.0 190

390XL 39.0 195

400XL 40.0 200

420XL 42.0 210

450XL 45.0 225

460XL 46.0 230

480XL 48.0 240

500XL 50.0 250

570XL 57.0 285

630XL 63.0 315

770XL 77.0 385

0.200″pitch extra light

(XL)

Available in

14″and 38″widths

Length and Pitch

Designation Pitch Length

(in) Number

of Teeth

124L 12.375 33

135L 12.5 36

150L 15.0 40

165L 16.5 44

187L 18.75 50

195L 19.50 52

210L 21.0 56

225L 22.5 60

240L 24.0 64

255L 25.5 68

270L 27.0 72

285L 28.5 76

300L 30.0 80

315L 31.5 84

322L 32.25 86

345L 34.5 92

367L 36.75 98

390L 39.0 104

420L 42.0 112

450L 45.0 120

480L 48.0 128

510L 51.0 136

540L 54.0 144

600L 60.0 160

660L 66.0 176

817L 81.75 218

900L 90.0 240

0.375″pitch light

(L)

Available in

12″,34″and 1″widths

Length and Pitch

Designation Pitch Length

(in) Number

of Teeth

210H 21.0 42

220H 22.0 44

230H 23.0 46

240H 24.0 48

270H 27.0 54

300H 30.0 60

320H 32.0 64

330H 33.0 66

340H 34.0 68

350H 35.0 70

360H 36.0 72

370H 37.0 74

390H 39.0 78

400H 40.0 80

410H 41.0 82

420H 42.0 84

450H 45.0 90

480H 48.0 96

490H 49.0 98

510H 51.0 102

540H 54.0 108

560H 56.0 112

570H 57.0 114

585H 58.5 117

600H 60.0 120

630H 63.0 126

645H 64.5 129

660H 66.0 132

700H 70.0 140

730H 73.0 146

750H 75.0 150

780H 78.0 156

800H 80.0 160

820H 82.0 164

840H 84.0 168

850H 85.0 170

900H 90.9 180

960H 96.0 192

1000H 100.0 200

1100H 110.0 220

1140H 114.0 228

1250H 125.0 250

1400H 140.0 280

1550H 155.0 310

1700H 170.0 340

0.500″pitch heavy

(H)

Available in

34″, 1″, 112″2″and 3″widths

NOTE: Belt lengths other than those shown may be available as a made-to-order item. Contact your local Gates representative for details.

The Driving Force in Power Transmission. Page 61

XL, 0.200″Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

60XL

P.L. 6.00

30 Teeth

70XL

P.L. 7.00

35 Teeth

80XL

P.L. 8.00

40 Teeth

90XL

P.L. 9.00

45 Teeth

100XL

P.L. 10.00

50 Teeth

110XL

P.L. 11.00

55 Teeth

120XL

P.L. 12.00

60 Teeth

130XL

P.L. 13.00

65 Teeth

140XL

P.L. 14.00

70 Teeth

150XL

P.L. 15.00

75 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

1160 1750 3450 10 0.637 10 0.637 1.000 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 12.00

1160 1750 3450 11 0.700 11 0.700 1.000 1.90 2.40 2.90 3.40 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40 10.90 11.40 11.90

1160 1750 3450 12 0.764 12 0.764 1.000 1.80 2.30 2.80 3.30 3.80 4.30 4.80 5.30 5.80 6.30 6.80 7.30 7.80 8.30 8.80 9.30 9.80 10.30 10.80 11.30 11.80

1160 1750 3450 14 0.891 14 0.891 1.000 1.60 2.10 2.60 3.10 3.60 4.10 4.60 5.10 5.60 6.10 6.60 7.10 7.60 8.10 8.60 9.10 9.60 10.10 10.60 11.10 11.60

1160 1750 3450 15 0.955 15 0.955 1.000 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50

1160 1750 3450 16 1.019 16 1.019 1.000 1.40 1.90 2.40 2.90 3.40 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40 10.90 11.40

1160 1750 3450 18 1.146 18 1.146 1.000 1.70 2.20 2.70 3.20 3.70 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70 11.20

1160 1750 3450 20 1.273 20 1.273 1.000 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00

1160 1750 3450 21 1.337 21 1.337 1.000 1.90 2.40 2.90 3.40 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40 10.90

1160 1750 3450 22 1.401 22 1.401 1.000 1.80 2.30 2.80 3.30 3.80 4.30 4.80 5.30 5.80 6.30 6.80 7.30 7.80 8.30 8.80 9.30 9.80 10.30 10.80

1160 1750 3450 24 1.528 24 1.528 1.000 2.10 2.60 3.10 3.60 4.10 4.60 5.10 5.60 6.10 6.60 7.10 7.60 8.10 8.60 9.10 9.60 10.10 10.60

1160 1750 3450 28 1.783 28 1.783 1.000 2.20 2.70 3.20 3.70 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20

1160 1750 3450 30 1.910 30 1.910 1.000 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00

1107 1670 3293 21 1.337 22 1.401 1.048 1.85 2.35 2.85 3.35 3.85 4.35 4.85 5.35 5.85 6.35 6.85 7.35 7.85 8.35 8.85 9.35 9.85 10.35 10.85

1105 1667 3286 20 1.273 21 1.337 1.050 1.95 2.45 2.95 3.45 3.95 4.45 4.95 5.45 5.95 6.45 6.95 7.45 7.95 8.45 8.95 9.45 9.95 10.45 10.95

1088 1641 3234 15 0.955 16 1.019 1.067 1.45 1.95 2.45 2.95 3.45 3.95 4.45 4.95 5.45 5.95 6.45 6.95 7.45 7.95 8.45 8.95 9.45 9.95 10.45 10.95 11.45

1088 1641 3234 30 1.910 32 2.037 1.067 2.40 2.90 3.40 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90

1083 1633 3220 14 0.891 15 0.955 1.071 1.55 2.05 2.55 3.05 3.55 4.05 4.55 5.05 5.55 6.05 6.55 7.05 7.55 8.05 8.55 9.05 9.55 10.05 10.55 11.05 11.55

1083 1633 3220 28 1.783 30 1.910 1.071 2.60 3.10 3.60 4.10 4.60 5.10 5.60 6.10 6.60 7.10 7.60 8.10 8.60 9.10 9.60 10.10

1063 1604 3163 11 0.700 12 0.764 1.091 1.85 2.35 2.85 3.35 3.85 4.35 4.85 5.35 5.85 6.35 6.85 7.35 7.85 8.35 8.85 9.35 9.85 10.35 10.85 11.35 11.85

1063 1604 3163 22 1.401 24 1.528 1.091 2.20 2.70 3.20 3.70 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70

1055 1591 3136 10 0.637 11 0.700 1.100 1.95 2.45 2.95 3.45 3.95 4.45 4.95 5.45 5.95 6.45 6.95 7.45 7.95 8.45 8.95 9.45 9.95 10.45 10.95 11.45 11.95

1055 1591 3136 20 1.273 22 1.401 1.100 1.90 2.40 2.90 3.40 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40 10.90

1044 1575 3105 18 1.146 20 1.273 1.111 1.60 2.10 2.60 3.10 3.60 4.10 4.60 5.10 5.60 6.10 6.60 7.10 7.60 8.10 8.60 9.10 9.60 10.10 10.60 11.10

1031 1556 3067 16 1.019 18 1.146 1.125 1.80 2.30 2.80 3.30 3.80 4.30 4.80 5.30 5.80 6.30 6.80 7.30 7.80 8.30 8.80 9.30 9.80 10.30 10.80 11.30

1015 1531 3019 14 0.891 16 1.019 1.143 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50

1015 1531 3019 21 1.337 24 1.528 1.143 2.25 2.75 3.25 3.75 4.25 4.75 5.25 5.75 6.25 6.75 7.25 7.75 8.25 8.75 9.25 9.75 10.25 10.75

1015 1531 3019 28 1.783 32 2.037 1.143 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00

994 1500 2957 12 0.764 14 0.891 1.167 1.70 2.20 2.70 3.20 3.70 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70 11.20 11.70

994 1500 2957 18 1.146 21 1.337 1.167 2.05 2.55 3.05 3.55 4.05 4.55 5.05 5.55 6.05 6.55 7.05 7.55 8.05 8.55 9.05 9.55 10.05 10.55 11.05

994 1500 2957 24 1.528 28 1.783 1.167 2.40 2.90 3.40 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40

967 1458 2875 10 0.637 12 0.764 1.200 1.90 2.40 2.90 3.40 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40 10.90 11.40 11.90

967 1458 2875 15 0.955 18 1.146 1.200 1.85 2.35 2.85 3.35 3.85 4.35 4.85 5.35 5.85 6.35 6.85 7.35 7.85 8.35 8.85 9.35 9.85 10.35 10.85 11.35

967 1458 2875 20 1.273 24 1.528 1.200 1.80 2.30 2.80 3.30 3.80 4.30 4.80 5.30 5.80 6.30 6.80 7.30 7.80 8.30 8.80 9.30 9.80 10.30 10.80

967 1458 2875 30 1.910 36 2.292 1.200 2.69 3.19 3.69 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70

949 1432 2823 18 1.146 22 1.401 1.222 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00

928 1400 2760 12 0.764 15 0.955 1.250 1.65 2.15 2.65 3.15 3.65 4.15 4.65 5.15 5.65 6.15 6.65 7.15 7.65 8.15 8.65 9.15 9.65 10.15 10.65 11.15 11.65

928 1400 2760 16 1.019 20 1.273 1.250 1.70 2.20 2.70 3.20 3.70 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70 11.20

928 1400 2760 24 1.528 30 1.910 1.250 2.29 2.79 3.29 3.79 4.30 4.80 5.30 5.80 6.30 6.80 7.30 7.80 8.30 8.80 9.30 9.80 10.30

911 1375 2711 11 0.700 14 0.891 1.273 1.75 2.25 2.75 3.25 3.75 4.25 4.75 5.25 5.75 6.25 6.75 7.25 7.75 8.25 8.75 9.25 9.75 10.25 10.75 11.25 11.75

911 1375 2711 22 1.401 28 1.783 1.273 1.99 2.49 2.99 3.49 3.99 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50

902 1361 2683 14 0.891 18 1.146 1.286 1.39 1.90 2.40 2.90 3.40 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40 10.90 11.40

902 1361 2683 28 1.783 36 2.292 1.286 2.29 2.79 3.29 3.79 4.29 4.79 5.29 5.79 6.29 6.79 7.30 7.80 8.30 8.80 9.30 9.80

884 1333 2629 16 1.019 21 1.337 1.313 1.64 2.14 2.64 3.15 3.65 4.15 4.65 5.15 5.65 6.15 6.65 7.15 7.65 8.15 8.65 9.15 9.65 10.15 10.65 11.15

870 1313 2588 12 0.764 16 1.019 1.333 1.59 2.10 2.60 3.10 3.60 4.10 4.60 5.10 5.60 6.10 6.60 7.10 7.60 8.10 8.60 9.10 9.60 10.10 10.60 11.10 11.60

870 1313 2588 15 0.955 20 1.273 1.333 1.74 2.24 2.75 3.25 3.75 4.25 4.75 5.25 5.75 6.25 6.75 7.25 7.75 8.25 8.75 9.25 9.75 10.25 10.75 11.25

870 1313 2588 18 1.146 24 1.528 1.333 1.89 2.39 2.89 3.39 3.90 4.40 4.90 5.40 5.90 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40 10.90

870 1313 2588 21 1.337 28 1.783 1.333 2.04 2.54 3.04 3.54 4.04 4.54 5.04 5.55 6.05 6.55 7.05 7.55 8.05 8.55 9.05 9.55 10.05 10.55

870 1313 2588 24 1.528 32 2.037 1.333 2.19 2.69 3.19 3.69 4.19 4.69 5.19 5.69 6.19 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20

870 1313 2588 30 1.910 40 2.546 1.333 2.48 2.98 3.49 3.99 4.49 4.99 5.49 5.99 6.49 6.99 7.49 7.99 8.49 8.99 9.49

Key to Horsepower Correction Factor =1.0 =0.8 =0.6

Page 62 The Gates Rubber Company

XL, 0.200²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

60XL

P.L. 6.00

30 Teeth

70XL

P.L. 7.00

35 Teeth

80XL

P.L. 8.00

40 Teeth

90XL

P.L. 9.00

45 Teeth

100XL

P.L. 10.00

50 Teeth

110XL

P.L. 11.00

55 Teeth

120XL

P.L. 12.00

60 Teeth

130XL

P.L. 13.00

65 Teeth

140XL

P.L. 14.00

70 Teeth

150XL

P.L. 15.00

75 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

851 1283 2530 11 0.700 15 0.955 1.364 1.70 2.20 2.70 3.20 3.70 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70 11.20 11.70

851 1283 2530 22 1.401 30 1.910 1.364 2.39 2.89 3.39 3.89 4.39 4.89 5.39 5.89 6.39 6.89 7.40 7.90 8.40 8.90 9.40 9.90 10.40

844 1273 2509 16 1.019 22 1.401 1.375 1.59 2.09 2.59 3.09 3.59 4.09 4.60 5.10 5.60 6.10 6.60 7.10 7.60 8.10 8.60 9.10 9.60 10.10 10.60 11.10

829 1250 2464 10 0.637 14 0.891 1.400 1.80 2.30 2.80 3.30 3.80 4.30 4.80 5.30 5.80 6.30 6.80 7.30 7.80 8.30 8.80 9.30 9.80 10.30 10.80 11.30 11.80

829 1250 2464 15 0.955 21 1.337 1.400 1.69 2.19 2.69 3.19 3.69 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70 11.20

829 1250 2464 20 1.273 28 1.783 1.400 2.08 2.59 3.09 3.59 4.09 4.59 5.09 5.59 6.09 6.59 7.10 7.60 8.10 8.60 9.10 9.60 10.10 10.60

829 1250 2464 30 1.910 42 2.674 1.400 2.87 3.38 3.88 4.38 4.88 5.39 5.89 6.39 6.89 7.39 7.89 8.39 8.89 9.39

812 1225 2415 14 0.891 20 1.273 1.429 1.79 2.29 2.79 3.29 3.80 4.30 4.80 5.30 5.80 6.30 6.80 7.30 7.80 8.30 8.80 9.30 9.80 10.30 10.80 11.30

812 1225 2415 21 1.337 30 1.910 1.429 2.43 2.94 3.44 3.94 4.44 4.94 5.44 5.94 6.44 6.94 7.44 7.94 8.44 8.95 9.45 9.95 10.45

812 1225 2415 28 1.783 40 2.546 1.429 2.57 3.08 3.58 4.08 4.58 5.09 5.59 6.09 6.59 7.09 7.59 8.09 8.59 9.09 9.59

798 1203 2372 11 0.700 16 1.019 1.455 1.64 2.14 2.65 3.15 3.65 4.15 4.65 5.15 5.65 6.15 6.65 7.15 7.65 8.15 8.65 9.15 9.65 10.15 10.65 11.15 11.65

798 1203 2372 22 1.401 32 2.037 1.455 2.28 2.78 3.28 3.79 4.29 4.79 5.29 5.79 6.29 6.79 7.29 7.79 8.29 8.79 9.29 9.79 10.29

791 1193 2352 15 0.955 22 1.401 1.467 1.63 2.14 2.64 3.14 3.64 4.14 4.64 5.14 5.65 6.15 6.65 7.15 7.65 8.15 8.65 9.15 9.65 10.15 10.65 11.15

791 1193 2352 30 1.910 44 2.801 1.467 2.76 3.27 3.77 4.28 4.78 5.28 5.78 6.28 6.79 7.29 7.79 8.29 8.79 9.29

773 1167 2300 10 0.637 15 0.955 1.500 1.74 2.24 2.75 3.25 3.75 4.25 4.75 5.25 5.75 6.25 6.75 7.25 7.75 8.25 8.75 9.25 9.75 10.25 10.75 11.25 11.75

773 1167 2300 12 0.764 18 1.146 1.500 1.49 1.99 2.49 2.99 3.49 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50

773 1167 2300 14 0.891 21 1.337 1.500 1.74 2.24 2.74 3.24 3.74 4.24 4.74 5.25 5.75 6.25 6.75 7.25 7.75 8.25 8.75 9.25 9.75 10.25 10.75 11.25

773 1167 2300 16 1.019 24 1.528 1.500 1.98 2.49 2.99 3.49 3.99 4.49 4.99 5.49 5.99 6.49 6.99 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00

773 1167 2300 20 1.273 30 1.910 1.500 1.97 2.48 2.98 3.49 3.99 4.49 4.99 5.49 5.99 6.49 6.99 7.49 7.99 8.49 8.99 9.49 10.00 10.50

773 1167 2300 24 1.528 36 2.292 1.500 2.47 2.98 3.48 3.98 4.48 4.99 5.49 5.99 6.49 6.99 7.49 7.99 8.49 8.99 9.49 9.99

773 1167 2300 28 1.783 42 2.674 1.500 2.46 2.97 3.47 3.97 4.48 4.98 5.48 5.98 6.48 6.99 7.49 7.99 8.49 8.99 9.49

761 1148 2264 21 1.337 32 2.037 1.524 2.32 2.83 3.33 3.83 4.34 4.84 5.34 5.84 6.34 6.84 7.34 7.84 8.34 8.84 9.34 9.84 10.34

746 1125 2218 18 1.146 28 1.783 1.556 2.18 2.68 3.18 3.69 4.19 4.69 5.19 5.69 6.19 6.69 7.19 7.69 8.19 8.69 9.19 9.69 10.19 10.69

738 1114 2195 14 0.891 22 1.401 1.571 1.68 2.18 2.69 3.19 3.69 4.19 4.69 5.19 5.69 6.19 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70 11.20

738 1114 2195 28 1.783 44 2.801 1.571 2.85 3.36 3.87 4.37 4.87 5.38 5.88 6.38 6.88 7.38 7.88 8.38 8.89 9.39

725 1094 2156 10 0.637 16 1.019 1.600 1.69 2.19 2.69 3.19 3.69 4.20 4.70 5.20 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70 11.20 11.70

725 1094 2156 15 0.955 24 1.528 1.600 2.03 2.53 3.04 3.54 4.04 4.54 5.04 5.54 6.04 6.54 7.04 7.54 8.04 8.55 9.05 9.55 10.05 10.55 11.05

725 1094 2156 20 1.273 32 2.037 1.600 1.86 2.37 2.87 3.38 3.88 4.38 4.89 5.39 5.89 6.39 6.89 7.39 7.89 8.39 8.89 9.39 9.89 10.39

725 1094 2156 30 1.910 48 3.056 1.600 3.05 3.55 4.06 4.56 5.07 5.57 6.07 6.57 7.08 7.58 8.08 8.58 9.08

709 1069 2108 11 0.700 18 1.146 1.636 1.53 2.04 2.54 3.04 3.54 4.04 4.54 5.05 5.55 6.05 6.55 7.05 7.55 8.05 8.55 9.05 9.55 10.05 10.55 11.05 11.55

709 1069 2108 22 1.401 36 2.292 1.636 2.05 2.56 3.07 3.57 4.08 4.58 5.08 5.58 6.08 6.58 7.09 7.59 8.09 8.59 9.09 9.59 10.09

696 1050 2070 12 0.764 20 1.273 1.667 1.38 1.88 2.39 2.89 3.39 3.89 4.39 4.89 5.39 5.89 6.40 6.90 7.40 7.90 8.40 8.90 9.40 9.90 10.40 10.90 11.40

696 1050 2070 18 1.146 30 1.910 1.667 2.06 2.57 3.08 3.58 4.08 4.58 5.09 5.59 6.09 6.59 7.09 7.59 8.09 8.59 9.09 9.59 10.09 10.59

696 1050 2070 24 1.528 40 2.546 1.667 2.24 2.75 3.26 3.77 4.27 4.77 5.28 5.78 6.28 6.78 7.28 7.78 8.28 8.79 9.29 9.79

677 1021 2013 14 0.891 24 1.528 1.714 1.57 2.08 2.58 3.08 3.59 4.09 4.59 5.09 5.59 6.09 6.59 7.09 7.59 8.09 8.59 9.09 9.59 10.10 10.60 11.10

677 1021 2013 21 1.337 36 2.292 1.714 2.10 2.61 3.11 3.62 4.12 4.63 5.13 5.63 6.13 6.63 7.13 7.63 8.14 8.64 9.14 9.64 10.14

677 1021 2013 28 1.783 48 3.056 1.714 2.62 3.13 3.64 4.15 4.66 5.16 5.66 6.17 6.67 7.17 7.67 8.17 8.68 9.18

663 1000 1971 12 0.764 21 1.337 1.750 1.83 2.33 2.84 3.34 3.84 4.34 4.84 5.34 5.84 6.34 6.84 7.34 7.84 8.34 8.85 9.35 9.85 10.35 10.85 11.35

663 1000 1971 16 1.019 28 1.783 1.750 1.76 2.27 2.77 3.28 3.78 4.28 4.78 5.29 5.79 6.29 6.79 7.29 7.79 8.29 8.79 9.29 9.79 10.29 10.79

663 1000 1971 24 1.528 42 2.674 1.750 2.64 3.15 3.65 4.16 4.66 5.17 5.67 6.17 6.68 7.18 7.68 8.18 8.68 9.18 9.68

653 984 1941 18 1.146 32 2.037 1.778 1.95 2.46 2.97 3.47 3.98 4.48 4.98 5.48 5.98 6.48 6.99 7.49 7.99 8.49 8.99 9.49 9.99 10.49

644 972 1917 10 0.637 18 1.146 1.800 1.58 2.08 2.59 3.09 3.59 4.09 4.59 5.09 5.59 6.09 6.59 7.10 7.60 8.10 8.60 9.10 9.60 10.10 10.60 11.10 11.60

644 972 1917 20 1.273 36 2.292 1.800 2.14 2.65 3.16 3.66 4.17 4.67 5.17 5.68 6.18 6.68 7.18 7.68 8.18 8.69 9.19 9.69 10.19

638 963 1898 11 0.700 20 1.273 1.818 1.42 1.93 2.43 2.94 3.44 3.94 4.44 4.94 5.44 5.94 6.44 6.94 7.44 7.95 8.45 8.95 9.45 9.95 10.45 10.95 11.45

638 963 1898 22 1.401 40 2.546 1.818 2.33 2.84 3.35 3.86 4.36 4.87 5.37 5.87 6.37 6.88 7.38 7.88 8.38 8.88 9.38 9.88

633 955 1882 12 0.764 22 1.401 1.833 1.77 2.28 2.78 3.28 3.79 4.29 4.79 5.29 5.79 6.29 6.79 7.29 7.79 8.29 8.79 9.29 9.79 10.29 10.79 11.30

633 955 1882 24 1.528 44 2.801 1.833 2.52 3.03 3.54 4.05 4.56 5.06 5.56 6.07 6.57 7.07 7.57 8.07 8.58 9.08 9.58

621 938 1848 15 0.955 28 1.783 1.867 1.80 2.31 2.82 3.32 3.83 4.33 4.83 5.33 5.83 6.34 6.84 7.34 7.84 8.34 8.84 9.34 9.84 10.34 10.84

Key to Horsepower Correction Factor =1.0 =0.8 =0.6

The Driving Force in Power Transmission. Page 63

XL, 0.200²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

60XL

P.L. 6.00

30 Teeth

70XL

P.L. 7.00

35 Teeth

80XL

P.L. 8.00

40 Teeth

90XL

P.L. 9.00

45 Teeth

100XL

P.L. 10.00

50 Teeth

110XL

P.L. 11.00

55 Teeth

120XL

P.L. 12.00

60 Teeth

130XL

P.L. 13.00

65 Teeth

140XL

P.L. 14.00

70 Teeth

150XL

P.L. 15.00

75 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

619 933 1840 16 1.019 30 1.910 1.875 2.15 2.66 3.17 3.67 4.18 4.68 5.18 5.68 6.18 6.68 7.19 7.69 8.19 8.69 9.19 9.69 10.19 10.69

609 919 1811 21 1.337 40 2.546 1.905 2.37 2.89 3.40 3.90 4.41 4.91 5.42 5.92 6.42 6.92 7.43 7.93 8.43 8.93 9.43 9.93

608 917 1807 11 0.700 21 1.337 1.909 1.36 1.87 2.38 2.88 3.39 3.89 4.39 4.89 5.39 5.89 6.39 6.89 7.39 7.89 8.39 8.89 9.39 9.90 10.40 10.90 11.40

608 917 1807 22 1.401 42 2.674 1.909 2.72 3.24 3.75 4.25 4.76 5.26 5.76 6.27 6.77 7.27 7.77 8.28 8.78 9.28 9.78

580 875 1725 10 0.637 20 1.273 2.000 1.47 1.97 2.48 2.98 3.49 3.99 4.49 4.99 5.49 5.99 6.49 6.99 7.49 7.99 8.49 8.99 9.49 9.99 10.50 11.00 11.5

580 875 1725 11 0.700 22 1.401 2.000 1.82 2.32 2.83 3.33 3.83 4.34 4.84 5.34 5.84 6.34 6.84 7.34 7.84 8.34 8.84 9.34 9.84 10.34 10.84 11.34

580 875 1725 12 0.764 24 1.528 2.000 1.66 2.17 2.67 3.18 3.68 4.18 4.68 5.19 5.69 6.19 6.69 7.19 7.69 8.19 8.69 9.19 9.69 10.19 10.69 11.19

580 875 1725 14 0.891 28 1.783 2.000 1.85 2.36 2.87 3.37 3.87 4.38 4.88 5.38 5.88 6.38 6.89 7.39 7.89 8.39 8.89 9.39 9.89 10.39 10.89

580 875 1725 15 0.955 30 1.910 2.000 2.20 2.71 3.21 3.72 4.22 4.73 5.23 5.73 6.23 6.73 7.23 7.74 8.24 8.74 9.24 9.74 10.24 10.74

580 875 1725 16 1.019 32 2.037 2.000 2.04 2.55 3.06 3.56 4.07 4.57 5.07 5.58 6.08 6.58 7.08 7.58 8.08 8.58 9.09 9.59 10.09 10.59

580 875 1725 18 1.146 36 2.292 2.000 2.23 2.74 3.25 3.76 4.26 4.77 5.27 5.77 6.27 6.78 7.28 7.78 8.28 8.78 9.28 9.78 10.28

580 875 1725 20 1.273 40 2.546 2.000 2.42 2.93 3.44 3.95 4.46 4.96 5.46 5.97 6.47 6.97 7.47 7.98 8.48 8.98 9.48 9.98

580 875 1725 21 1.337 42 2.674 2.000 2.25 2.77 3.28 3.79 4.30 4.80 5.31 5.81 6.31 6.82 7.32 7.82 8.32 8.82 9.33 9.83

580 875 1725 22 1.401 44 2.801 2.000 2.61 3.12 3.63 4.14 4.65 5.15 5.66 6.16 6.66 7.17 7.67 8.17 8.67 9.17 9.67

580 875 1725 24 1.528 48 3.056 2.000 2.79 3.31 3.82 4.33 4.84 5.35 5.85 6.35 6.86 7.36 7.86 8.36 8.87 9.37

580 875 1725 30 1.910 60 3.820 2.000 3.36 3.88 4.40 4.91 5.42 5.92 6.43 6.93 7.44 7.94 8.45

554 835 1647 21 1.337 44 2.801 2.095 2.65 3.16 3.68 4.19 4.69 5.20 5.70 6.21 6.71 7.21 7.72 8.22 8.72 9.22 9.72

552 833 1643 10 0.637 21 1.337 2.100 1.41 1.92 2.42 2.93 3.43 3.93 4.44 4.94 5.44 5.94 6.44 6.94 7.44 7.94 8.44 8.94 9.44 9.94 10.44 10.94 11.44

552 833 1643 20 1.273 42 2.674 2.100 2.29 2.81 3.33 3.84 4.34 4.85 5.35 5.86 6.36 6.86 7.37 7.87 8.37 8.87 9.37 9.88

544 820 1617 15 0.955 32 2.037 2.133 2.08 2.59 3.10 3.61 4.11 4.62 5.12 5.62 6.13 6.63 7.13 7.63 8.13 8.63 9.13 9.63 10.14 10.64

541 817 1610 14 0.891 30 1.910 2.143 2.24 2.75 3.26 3.77 4.27 4.77 5.28 5.78 6.28 6.78 7.28 7.78 8.28 8.79 9.29 9.79 10.29 10.79

541 817 1610 28 1.783 60 3.820 2.143 3.45 3.97 4.48 5.00 5.50 6.01 6.52 7.03 7.53 8.03 8.54

532 802 1581 11 0.700 24 1.528 2.182 1.70 2.21 2.72 3.22 3.73 4.23 4.73 5.23 5.74 6.24 6.74 7.24 7.74 8.24 8.74 9.24 9.74 10.24 10.74 11.24

532 802 1581 22 1.401 48 3.056 2.182 2.88 3.40 3.91 4.42 4.93 5.44 5.94 6.45 6.95 7.45 7.96 8.46 8.96 9.46

527 795 1568 10 0.637 22 1.401 2.200 1.86 2.37 2.87 3.38 3.88 4.38 4.88 5.39 5.89 6.39 6.89 7.39 7.89 8.39 8.89 9.39 9.89 10.39 10.89 11.39

527 795 1568 20 1.273 44 2.801 2.200 2.69 3.21 3.72 4.23 4.74 5.24 5.75 6.25 6.76 7.26 7.76 8.26 8.77 9.27 9.77

522 788 1553 18 1.146 40 2.546 2.222 2.50 3.02 3.53 4.04 4.55 5.05 5.56 6.06 6.56 7.07 7.57 8.07 8.57 9.07 9.57 10.08

516 778 1533 16 1.019 36 2.292 2.250 2.31 2.83 3.34 3.85 4.35 4.86 5.36 5.86 6.37 6.87 7.37 7.87 8.38 8.88 9.38 9.88 10.38

508 766 1509 14 0.891 32 2.037 2.286 2.12 2.64 3.15 3.66 4.16 4.67 5.17 5.67 6.17 6.68 7.18 7.68 8.18 8.68 9.18 9.68 10.18 10.68

508 766 1509 21 1.337 48 3.056 2.286 2.39 2.92 3.44 3.96 4.47 4.98 5.48 5.99 6.49 7.00 7.50 8.00 8.51 9.01 9.51

497 750 1479 12 0.764 28 1.783 2.333 1.93 2.45 2.96 3.46 3.97 4.47 4.97 5.48 5.98 6.48 6.98 7.48 7.98 8.48 8.99 9.49 9.99 10.49 10.99

497 750 1479 18 1.146 42 2.674 2.333 2.38 2.90 3.41 3.93 4.43 4.94 5.45 5.95 6.45 6.96 7.46 7.96 8.47 8.97 9.47 9.97

483 729 1438 10 0.637 24 1.528 2.400 1.74 2.26 2.76 3.27 3.77 4.28 4.78 5.28 5.78 6.28 6.78 7.29 7.79 8.29 8.79 9.29 9.79 10.29 10.79 11.29

483 729 1438 15 0.955 36 2.292 2.400 1.83 2.35 2.87 3.38 3.89 4.40 4.90 5.41 5.91 6.41 6.92 7.42 7.92 8.42 8.92 9.43 9.93 10.43

483 729 1438 20 1.273 48 3.056 2.400 2.43 2.96 3.49 4.00 4.51 5.02 5.53 6.03 6.54 7.04 7.55 8.05 8.55 9.06 9.56

483 729 1438 30 1.910 72 4.584 2.400 3.65 4.18 4.71 5.23 5.74 6.26 6.77 7.28 7.78

475 716 1411 18 1.146 44 2.801 2.444 2.25 2.78 3.30 3.81 4.32 4.83 5.34 5.84 6.35 6.85 7.35 7.86 8.36 8.86 9.36 9.87

464 700 1380 12 0.764 30 1.910 2.500 1.81 2.33 2.84 3.35 3.86 4.36 4.87 5.37 5.87 6.37 6.88 7.38 7.88 8.38 8.88 9.38 9.88 10.38 10.88

464 700 1380 16 1.019 40 2.546 2.500 2.06 2.59 3.11 3.62 4.13 4.64 5.14 5.65 6.15 6.66 7.16 7.66 8.16 8.67 9.17 9.67 10.17

464 700 1380 24 1.528 60 3.820 2.500 3.08 3.62 4.14 4.66 5.17 5.68 6.19 6.70 7.21 7.71 8.22 8.72

456 688 1355 11 0.700 28 1.783 2.545 1.98 2.49 3.00 3.51 4.01 4.52 5.02 5.52 6.03 6.53 7.03 7.53 8.03 8.53 9.03 9.53 10.04 10.54 11.04

451 681 1342 14 0.891 36 2.292 2.571 1.87 2.40 2.92 3.43 3.94 4.44 4.95 5.46 5.96 6.46 6.96 7.47 7.97 8.47 8.97 9.47 9.98 10.48

451 681 1342 28 1.783 72 4.584 2.571 3.73 4.27 4.79 5.31 5.83 6.34 6.86 7.37 7.87

442 667 1314 16 1.019 42 2.674 2.625 2.46 2.98 3.50 4.01 4.52 5.03 5.54 6.04 6.55 7.05 7.55 8.06 8.56 9.06 9.56 10.07

435 656 1294 12 0.764 32 2.037 2.667 1.68 2.21 2.73 3.24 3.75 4.25 4.76 5.26 5.76 6.27 6.77 7.27 7.77 8.28 8.78 9.28 9.78 10.28 10.78

435 656 1294 15 0.955 40 2.546 2.667 2.10 2.63 3.15 3.66 4.17 4.68 5.19 5.69 6.20 6.70 7.21 7.71 8.21 8.71 9.22 9.72 10.22

435 656 1294 18 1.146 48 3.056 2.667 2.52 3.05 3.57 4.09 4.60 5.11 5.62 6.13 6.63 7.14 7.64 8.14 8.65 9.15 9.65

425 642 1265 11 0.700 30 1.910 2.727 1.85 2.37 2.89 3.40 3.90 4.41 4.91 5.42 5.92 6.42 6.92 7.43 7.93 8.43 8.93 9.43 9.93 10.43 10.93

425 642 1265 22 1.401 60 3.820 2.727 3.17 3.70 4.23 4.74 5.26 5.77 6.28 6.79 7.30 7.81 8.31 8.82

Key to Horsepower Correction Factor =1.0 =0.8 =0.6

Page 64 The Gates Rubber Company

XL, 0.200²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

60XL

P.L. 6.00

30 Teeth

70XL

P.L. 7.00

35 Teeth

80XL

P.L. 8.00

40 Teeth

90XL

P.L. 9.00

45 Teeth

100XL

P.L. 10.00

50 Teeth

110XL

P.L. 11.00

55 Teeth

120XL

P.L. 12.00

60 Teeth

130XL

P.L. 13.00

65 Teeth

140XL

P.L. 14.00

70 Teeth

150XL

P.L. 15.00

75 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

422 636 1255 16 1.019 44 2.801 2.750 2.33 2.86 3.38 3.90 4.41 4.92 5.43 5.93 6.44 6.94 7.45 7.95 8.45 8.96 9.46 9.96

414 625 1232 10 0.637 28 1.783 2.800 2.02 2.53 3.05 3.55 4.06 4.56 5.07 5.57 6.07 6.57 7.08 7.58 8.08 8.58 9.08 9.58 10.08 10.58 11.08

414 625 1232 15 0.955 42 2.674 2.800 2.50 3.03 3.55 4.06 4.57 5.08 5.58 6.09 6.59 7.10 7.60 8.10 8.61 9.11 9.61 10.11

406 613 1208 14 0.891 40 2.546 2.857 2.14 2.67 3.19 3.71 4.22 4.73 5.24 5.74 6.25 6.75 7.25 7.76 8.26 8.76 9.26 9.77 10.27

406 613 1208 21 1.337 60 3.820 2.857 3.21 3.74 4.27 4.79 5.30 5.82 6.33 6.84 7.34 7.85 8.36 8.86

399 602 1186 11 0.700 32 2.037 2.909 1.72 2.25 2.77 3.28 3.79 4.30 4.80 5.31 5.81 6.31 6.82 7.32 7.82 8.32 8.83 9.33 9.83 10.33 10.83

395 597 1176 15 0.955 44 2.801 2.933 2.37 2.90 3.42 3.94 4.45 4.96 5.47 5.98 6.48 6.99 7.49 8.00 8.50 9.00 9.51 10.01

387 583 1150 10 0.637 30 1.910 3.000 1.89 2.42 2.93 3.44 3.95 4.45 4.96 5.46 5.97 6.47 6.97 7.47 7.97 8.48 8.98 9.48 9.98 10.48 10.98

387 583 1150 12 0.764 36 2.292 3.000 1.95 2.48 3.00 3.52 4.03 4.54 5.04 5.55 6.05 6.56 7.06 7.56 8.06 8.57 9.07 9.57 10.07 10.57

387 583 1150 14 0.891 42 2.674 3.000 2.00 2.54 3.07 3.59 4.10 4.61 5.12 5.63 6.14 6.64 7.14 7.65 8.15 8.65 9.16 9.66 10.16

387 583 1150 16 1.019 48 3.056 3.000 2.60 3.13 3.66 4.17 4.69 5.20 5.71 6.22 6.72 7.23 7.73 8.24 8.74 9.24 9.75

387 583 1150 20 1.273 60 3.820 3.000 3.25 3.78 4.31 4.83 5.35 5.86 6.37 6.88 7.39 7.90 8.40 8.91

387 583 1150 24 1.528 72 4.584 3.000 3.34 3.90 4.43 4.96 5.49 6.00 6.52 7.03 7.54 8.05

369 557 1098 14 0.891 44 2.801 3.143 2.41 2.94 3.47 3.99 4.50 5.01 5.52 6.02 6.53 7.04 7.54 8.04 8.55 9.05 9.55 10.05

363 547 1078 10 0.637 32 2.037 3.200 1.76 2.29 2.81 3.33 3.84 4.34 4.85 5.35 5.86 6.36 6.86 7.37 7.87 8.37 8.87 9.37 9.88 10.38 10.88

363 547 1078 15 0.955 48 3.056 3.200 2.64 3.17 3.70 4.22 4.73 5.24 5.75 6.26 6.77 7.27 7.78 8.28 8.79 9.29 9.79

354 535 1054 11 0.700 36 2.292 3.273 1.99 2.52 3.05 3.56 4.07 4.58 5.09 5.59 6.10 6.60 7.11 7.61 8.11 8.61 9.12 9.62 10.12 10.62

354 535 1054 22 1.401 72 4.584 3.273 3.42 3.98 4.52 5.05 5.57 6.09 6.61 7.12 7.63 8.14

348 525 1035 12 0.764 40 2.546 3.333 2.22 2.75 3.28 3.80 4.31 4.82 5.33 5.83 6.34 6.84 7.35 7.85 8.35 8.86 9.36 9.86 10.36

348 525 1035 18 1.146 60 3.820 3.333 2.77 3.33 3.87 4.39 4.92 5.43 5.95 6.46 6.97 7.48 7.99 8.49 9.00

338 510 1006 14 0.891 48 3.056 3.429 2.68 3.22 3.74 4.26 4.78 5.29 5.80 6.31 6.81 7.32 7.83 8.33 8.83 9.34 9.84

338 510 1006 21 1.337 72 4.584 3.429 3.46 4.02 4.56 5.09 5.61 6.13 6.65 7.16 7.68 8.19

331 500 986 12 0.764 42 2.674 3.500 2.08 2.62 3.15 3.68 4.19 4.70 5.21 5.72 6.23 6.73 7.24 7.74 8.24 8.75 9.25 9.75 10.26

322 486 958 10 0.637 36 2.292 3.600 2.03 2.56 3.09 3.60 4.12 4.63 5.13 5.64 6.14 6.65 7.15 7.65 8.16 8.66 9.16 9.66 10.17 10.67

322 486 958 20 1.273 72 4.584 3.600 3.50 4.06 4.60 5.13 5.66 6.18 6.69 7.21 7.72 8.23

319 481 949 11 0.700 40 2.546 3.636 2.26 2.80 3.32 3.84 4.35 4.86 5.37 5.88 6.38 6.89 7.39 7.90 8.40 8.90 9.41 9.91 10.41

316 477 941 12 0.764 44 2.801 3.667 2.49 3.03 3.55 4.07 4.59 5.10 5.61 6.12 6.62 7.13 7.63 8.14 8.64 9.14 9.65 10.15

309 467 920 16 1.019 60 3.820 3.750 2.85 3.41 3.95 4.48 5.00 5.52 6.04 6.55 7.06 7.57 8.08 8.58 9.09

304 458 904 11 0.700 42 2.674 3.818 2.12 2.67 3.20 3.72 4.23 4.75 5.26 5.77 6.27 6.78 7.28 7.79 8.29 8.79 9.30 9.80 10.30

290 438 863 10 0.637 40 2.546 4.000 2.30 2.84 3.36 3.88 4.40 4.91 5.42 5.92 6.43 6.93 7.44 7.94 8.45 8.95 9.45 9.95 10.46

290 438 863 11 0.700 44 2.801 4.000 1.96 2.53 3.07 3.60 4.12 4.63 5.14 5.65 6.16 6.67 7.17 7.68 8.18 8.69 9.19 9.69 10.20

290 438 863 12 0.764 48 3.056 4.000 2.19 2.76 3.30 3.83 4.35 4.86 5.38 5.89 6.40 6.90 7.41 7.92 8.42 8.93 9.43 9.93

290 438 863 15 0.955 60 3.820 4.000 2.89 3.45 3.99 4.52 5.04 5.56 6.08 6.59 7.10 7.61 8.12 8.63 9.14

290 438 863 18 1.146 72 4.584 4.000 3.58 4.14 4.68 5.21 5.74 6.26 6.78 7.30 7.81 8.32

276 417 821 10 0.637 42 2.674 4.200 2.15 2.71 3.24 3.76 4.28 4.79 5.30 5.81 6.32 6.82 7.33 7.83 8.34 8.84 9.34 9.85 10.35

271 408 805 14 0.891 60 3.820 4.286 2.93 3.49 4.03 4.56 5.09 5.61 6.12 6.64 7.15 7.66 8.17 8.68 9.18

266 401 791 11 0.700 48 3.056 4.364 2.23 2.80 3.34 3.87 4.39 4.91 5.42 5.93 6.44 6.95 7.46 7.96 8.47 8.97 9.48 9.98

264 398 784 10 0.637 44 2.801 4.400 2.00 2.57 3.11 3.64 4.16 4.67 5.19 5.70 6.21 6.71 7.22 7.72 8.23 8.73 9.24 9.74 10.24

258 389 767 16 1.019 72 4.584 4.500 3.06 3.66 4.22 4.76 5.30 5.82 6.35 6.87 7.38 7.90 8.41

242 365 719 10 0.637 48 3.056 4.800 2.27 2.84 3.38 3.91 4.43 4.95 5.47 5.98 6.49 6.99 7.50 8.01 8.51 9.02 9.52 10.03

242 365 719 15 0.955 72 4.584 4.800 3.10 3.69 4.26 4.80 5.34 5.87 6.39 6.91 7.43 7.94 8.45

232 350 690 12 0.764 60 3.820 5.000 3.00 3.57 4.11 4.65 5.17 5.69 6.21 6.73 7.24 7.75 8.26 8.77 9.27

226 340 671 14 0.891 72 4.584 5.143 3.14 3.73 4.30 4.84 5.38 5.91 6.43 6.95 7.47 7.99 8.50

213 321 633 11 0.700 60 3.820 5.455 3.04 3.61 4.15 4.69 5.21 5.74 6.25 6.77 7.28 7.79 8.30 8.81 9.32

193 292 575 10 0.637 60 3.820 6.000 2.47 3.08 3.65 4.19 4.73 5.26 5.78 6.30 6.81 7.33 7.84 8.35 8.86 9.36

193 292 575 12 0.764 72 4.584 6.000 3.21 3.81 4.38 4.92 5.46 5.99 6.52 7.04 7.56 8.07 8.59

177 267 527 11 0.700 72 4.584 6.545 3.25 3.85 4.42 4.97 5.50 6.03 6.56 7.08 7.60 8.12 8.63

161 243 479 10 0.637 72 4.584 7.2 3.29 3.89 4.45 5.01 5.54 6.08 6.6 7.12 7.64 8.16 8.67

Key to Horsepower Correction Factor =1.0 =0.8 =0.6 =0.4 =0.2

The Driving Force in Power Transmission. Page 65

L, 0.375²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

124L

P.L. 12.375

33 Teeth

150L

P.L. 15.00

40 Teeth

187L

P.L. 18.75

50 Teeth

210L

P.L. 21.00

56 Teeth

225L

P.L. 22.50

60 Teeth

240L

P.L. 24.00

64 Teeth

255L

P.L. 25.50

68 Teeth

270L

P.L. 27.00

72 Teeth

285L

P.L. 28.50

76 Teeth

300L

P.L. 30.00

80 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

1160 1750 3450 10 1.194 10 1.194 1.000 4.31 5.62 7.50 8.62 9.37 10.12 10.87 11.62 12.37 13.12 14.25 15.37 16.50 17.62 19.12 20.62 22.12 23.62 25.12 28.12

1160 1750 3450 12 1.432 12 1.432 1.000 3.94 5.25 7.13 8.25 9.00 9.75 10.50 11.25 12.00 12.75 13.88 15.00 16.13 17.25 18.75 20.25 21.75 23.25 24.75 27.75

1160 1750 3450 14 1.671 14 1.671 1.000 3.56 4.88 6.75 7.88 8.63 9.38 10.13 10.88 11.63 12.38 13.50 14.63 15.75 16.88 18.38 19.88 21.38 22.88 24.38 27.38

1160 1750 3450 16 1.910 16 1.910 1.000 3.19 4.50 6.37 7.50 8.25 9.00 9.75 10.50 11.25 12.00 13.12 14.25 15.37 16.50 18.00 19.50 21.00 22.50 24.00 27.00

1160 1750 3450 17 2.029 17 2.029 1.000 3.00 4.31 6.19 7.31 8.06 8.81 9.56 10.31 11.06 11.81 12.94 14.06 15.19 16.31 17.81 19.31 20.81 22.31 23.81 26.81

1160 1750 3450 18 2.149 18 2.149 1.000 2.81 4.12 6.00 7.12 7.87 8.62 9.37 10.12 10.87 11.62 12.75 13.87 15.00 16.12 17.62 19.12 20.62 22.12 23.62 26.62

1160 1750 3450 19 2.268 19 2.268 1.000 2.62 3.94 5.81 6.94 7.69 8.44 9.19 9.94 10.69 11.44 12.56 13.69 14.81 15.94 17.44 18.94 20.44 21.94 23.44 26.44

1160 1750 3450 20 2.387 20 2.387 1.000 3.75 5.63 6.75 7.50 8.25 9.00 9.75 10.50 11.25 12.38 13.50 14.63 15.75 17.25 18.75 20.25 21.75 23.25 26.25

1160 1750 3450 21 2.507 21 2.507 1.000 3.56 5.44 6.56 7.31 8.06 8.81 9.56 10.31 11.06 12.19 13.31 14.44 15.56 17.06 18.56 20.06 21.56 23.06 26.06

1160 1750 3450 22 2.626 22 2.626 1.000 3.38 5.25 6.38 7.13 7.88 8.63 9.38 10.13 10.88 12.00 13.13 14.25 15.38 16.88 18.38 19.88 21.38 22.88 25.88

1160 1750 3450 24 2.865 24 2.865 1.000 4.87 6.00 6.75 7.50 8.25 9.00 9.75 10.50 11.62 12.75 13.87 15.00 16.50 18.00 19.50 21.00 22.50 25.50

1160 1750 3450 26 3.104 26 3.104 1.000 4.50 5.62 6.37 7.12 7.87 8.62 9.37 10.12 11.25 12.37 13.50 14.62 16.12 17.62 19.12 20.62 22.12 25.12

1160 1750 3450 28 3.342 28 3.342 1.000 4.13 5.25 6.00 6.75 7.50 8.25 9.00 9.75 10.88 12.00 13.13 14.25 15.75 17.25 18.75 20.25 21.75 24.75

1160 1750 3450 30 3.581 30 3.581 1.000 4.87 5.62 6.37 7.12 7.87 8.62 9.37 10.50 11.62 12.75 13.87 15.37 16.87 18.37 19.87 21.37 24.37

1160 1750 3450 32 3.820 32 3.820 1.000 4.50 5.25 6.00 6.75 7.50 8.25 9.00 10.12 11.25 12.37 13.50 15.00 16.50 18.00 19.50 21.00 24.00

1160 1750 3450 36 4.297 36 4.297 1.000 5.25 6.00 6.75 7.50 8.25 9.38 10.50 11.63 12.75 14.25 15.75 17.25 18.75 20.25 23.25

1160 1750 3450 40 4.775 40 4.775 1.000 5.25 6.00 6.75 7.50 8.62 9.75 10.87 12.00 13.50 15.00 16.50 18.00 19.50 22.50

1160 1750 3450 44 5.252 44 5.252 1.000 6.00 6.75 7.88 9.00 10.13 11.25 12.75 14.25 15.75 17.25 18.75 21.75

1160 1750 3450 48 5.730 48 5.730 1.000 7.12 8.25 9.37 10.50 12.00 13.50 15.00 16.50 18.00 21.00

1107 1670 3293 21 2.507 22 2.626 1.048 3.47 5.34 6.47 7.22 7.97 8.72 9.47 10.22 10.97 12.09 13.22 14.34 15.47 16.97 18.47 19.97 21.47 22.97 25.97

1105 1667 3286 20 2.387 21 2.507 1.050 3.66 5.53 6.66 7.41 8.16 8.91 9.66 10.41 11.16 12.28 13.41 14.53 15.66 17.16 18.66 20.16 21.66 23.16 26.16

1102 1663 3278 19 2.268 20 2.387 1.053 3.84 5.72 6.84 7.59 8.34 9.09 9.84 10.59 11.34 12.47 13.59 14.72 15.84 17.34 18.84 20.34 21.84 23.34 26.34

1099 1658 3268 18 2.149 19 2.268 1.056 2.72 4.03 5.91 7.03 7.78 8.53 9.28 10.03 10.78 11.53 12.66 13.78 14.91 16.03 17.53 19.03 20.53 22.03 23.53 26.53

1096 1653 3258 17 2.029 18 2.149 1.059 2.91 4.22 6.09 7.22 7.97 8.72 9.47 10.22 10.97 11.72 12.84 13.97 15.09 16.22 17.72 19.22 20.72 22.22 23.72 26.72

1092 1647 3247 16 1.910 17 2.029 1.063 3.09 4.41 6.28 7.41 8.16 8.91 9.66 10.41 11.16 11.91 13.03 14.16 15.28 16.41 17.91 19.41 20.91 22.41 23.91 26.91

1088 1641 3234 30 3.581 32 3.820 1.067 4.69 5.44 6.19 6.94 7.69 8.44 9.19 10.31 11.44 12.56 13.69 15.19 16.69 18.19 19.69 21.19 24.19

1083 1633 3220 28 3.342 30 3.581 1.071 3.94 5.06 5.81 6.56 7.31 8.06 8.81 9.56 10.69 11.81 12.94 14.06 15.56 17.06 18.56 20.06 21.56 24.56

1077 1625 3204 26 3.104 28 3.342 1.077 4.31 5.44 6.19 6.94 7.69 8.44 9.19 9.94 11.06 12.19 13.31 14.44 15.94 17.44 18.94 20.44 21.94 24.94

1071 1615 3185 24 2.865 26 3.104 1.083 4.69 5.81 6.56 7.31 8.06 8.81 9.56 10.31 11.44 12.56 13.69 14.81 16.31 17.81 19.31 20.81 22.31 25.31

1063 1604 3163 22 2.626 24 2.865 1.091 3.19 5.06 6.19 6.94 7.69 8.44 9.19 9.94 10.69 11.81 12.94 14.06 15.19 16.69 18.19 19.69 21.19 22.69 25.69

1063 1604 3163 44 5.252 48 5.730 1.091 6.37 7.50 8.62 9.75 10.87 12.37 13.87 15.37 16.87 18.37 21.37

1055 1591 3136 20 2.387 22 2.626 1.100 3.56 5.44 6.56 7.31 8.06 8.81 9.56 10.31 11.06 12.19 13.31 14.44 15.56 17.06 18.56 20.06 21.56 23.06 26.06

1055 1591 3136 40 4.775 44 5.252 1.100 5.62 6.37 7.12 8.25 9.37 10.50 11.62 13.12 14.62 16.12 17.62 19.12 22.12

1050 1583 3121 19 2.268 21 2.507 1.105 3.75 5.62 6.75 7.50 8.25 9.00 9.75 10.50 11.25 12.37 13.50 14.62 15.75 17.25 18.75 20.25 21.75 23.25 26.25

1044 1575 3105 18 2.149 20 2.387 1.111 2.62 3.94 5.81 6.94 7.69 8.44 9.19 9.94 10.69 11.44 12.56 13.69 14.81 15.94 17.44 18.94 20.44 21.94 23.44 26.44

1044 1575 3105 36 4.297 40 4.775 1.111 5.62 6.37 7.12 7.87 9.00 10.12 11.25 12.37 13.87 15.37 16.87 18.37 19.87 22.87

1038 1566 3087 17 2.029 19 2.268 1.118 2.81 4.12 6.00 7.12 7.87 8.62 9.37 10.12 10.87 11.62 12.75 13.87 15.00 16.12 17.62 19.12 20.62 22.12 23.62 26.62

1031 1556 3067 16 1.910 18 2.149 1.125 3.00 4.31 6.19 7.31 8.06 8.81 9.56 10.31 11.06 11.81 12.94 14.06 15.19 16.31 17.81 19.31 20.81 22.31 23.81 26.81

1031 1556 3067 32 3.820 36 4.297 1.125 4.87 5.62 6.37 7.12 7.87 8.62 9.75 10.87 12.00 13.12 14.62 16.12 17.62 19.12 20.62 23.62

1015 1531 3019 14 1.671 16 1.910 1.143 3.37 4.69 6.56 7.69 8.44 9.19 9.94 10.69 11.44 12.19 13.31 14.44 15.56 16.69 18.19 19.69 21.19 22.69 24.19 27.19

1015 1531 3019 21 2.507 24 2.865 1.143 3.28 5.15 6.28 7.03 7.78 8.53 9.28 10.03 10.78 11.90 13.03 14.15 15.28 16.78 18.28 19.78 21.28 22.78 25.78

1015 1531 3019 28 3.342 32 3.820 1.143 4.87 5.62 6.37 7.12 7.87 8.62 9.37 10.50 11.62 12.75 13.87 15.37 16.87 18.37 19.87 21.37 24.37

1005 1517 2990 26 3.104 30 3.581 1.154 4.12 5.24 5.99 6.75 7.50 8.25 9.00 9.75 10.87 12.00 13.12 14.25 15.75 17.25 18.75 20.25 21.75 24.75

1002 1511 2980 19 2.268 22 2.626 1.158 3.65 5.53 6.65 7.40 8.15 8.90 9.65 10.40 11.15 12.28 13.41 14.53 15.66 17.16 18.66 20.16 21.66 23.16 26.16

994 1500 2957 12 1.432 14 1.671 1.167 3.75 5.06 6.94 8.06 8.81 9.56 10.31 11.06 11.81 12.56 13.69 14.81 15.94 17.06 18.56 20.06 21.56 23.06 24.56 27.56

994 1500 2957 18 2.149 21 2.507 1.167 3.84 5.72 6.84 7.59 8.34 9.09 9.84 10.59 11.34 12.47 13.59 14.72 15.84 17.34 18.84 20.34 21.84 23.34 26.34

994 1500 2957 24 2.865 28 3.342 1.167 4.49 5.62 6.37 7.12 7.87 8.62 9.37 10.12 11.25 12.37 13.50 14.62 16.12 17.62 19.12 20.62 22.12 25.12

Key to Horsepower Correction Factor =1.0 =0.8

Page 66 The Gates Rubber Company

L, 0.375²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

124L

P.L. 12.375

33 Teeth

150L

P.L. 15.00

40 Teeth

187L

P.L. 18.75

50 Teeth

210L

P.L. 21.00

56 Teeth

225L

P.L. 22.50

60 Teeth

240L

P.L. 24.00

64 Teeth

255L

P.L. 25.50

68 Teeth

270L

P.L. 27.00

72 Teeth

285L

P.L. 28.50

76 Teeth

300L

P.L. 30.00

80 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

986 1488 2933 17 2.029 20 2.387 1.176 2.71 4.03 5.90 7.03 7.78 8.53 9.28 10.03 10.78 11.53 12.66 13.78 14.91 16.03 17.53 19.03 20.53 22.03 23.53 26.53

982 1481 2919 22 2.626 26 3.104 1.182 4.87 5.99 6.75 7.50 8.25 9.00 9.75 10.50 11.62 12.75 13.87 15.00 16.50 18.00 19.50 21.00 22.50 25.50

977 1474 2905 16 1.910 19 2.268 1.188 2.90 4.21 6.09 7.22 7.97 8.72 9.47 10.22 10.97 11.72 12.84 13.97 15.09 16.22 17.72 19.22 20.72 22.22 23.72 26.72

967 1458 2875 10 1.194 12 1.432 1.200 4.12 5.44 7.31 8.44 9.19 9.94 10.69 11.44 12.19 12.94 14.06 15.19 16.31 17.44 18.94 20.44 21.94 23.44 24.94 27.94

967 1458 2875 20 2.387 24 2.865 1.200 3.37 5.24 6.37 7.12 7.87 8.62 9.37 10.12 10.87 12.00 13.12 14.25 15.37 16.87 18.37 19.87 21.37 22.87 25.87

967 1458 2875 30 3.581 36 4.297 1.200 4.30 5.05 5.80 6.55 7.30 8.05 8.81 9.93 11.06 12.18 13.31 14.81 16.31 17.81 19.31 20.81 23.81

967 1458 2875 40 4.775 48 5.730 1.200 5.98 6.73 7.86 8.99 10.11 11.24 12.74 14.24 15.74 17.24 18.74 21.74

955 1441 2841 14 1.671 17 2.029 1.214 3.28 4.59 6.47 7.59 8.34 9.09 9.84 10.59 11.34 12.09 13.22 14.34 15.47 16.59 18.09 19.59 21.09 22.59 24.09 27.09

949 1432 2823 18 2.149 22 2.626 1.222 3.74 5.62 6.75 7.50 8.25 9.00 9.75 10.50 11.25 12.37 13.50 14.62 15.75 17.25 18.75 20.25 21.75 23.25 26.25

949 1432 2823 36 4.297 44 5.252 1.222 5.23 5.98 6.73 7.49 8.61 9.74 10.86 11.99 13.49 14.99 16.49 17.99 19.49 22.50

943 1422 2803 26 3.104 32 3.820 1.231 3.92 5.05 5.80 6.55 7.30 8.05 8.80 9.56 10.68 11.81 12.93 14.06 15.56 17.06 18.56 20.06 21.56 24.56

939 1417 2793 17 2.029 21 2.507 1.235 2.61 3.93 5.81 6.93 7.68 8.43 9.18 9.93 10.68 11.43 12.56 13.69 14.81 15.94 17.44 18.94 20.44 21.94 23.44 26.44

937 1413 2787 21 2.507 26 3.104 1.238 4.96 6.09 6.84 7.59 8.34 9.09 9.84 10.59 11.71 12.84 13.96 15.09 16.59 18.09 19.59 21.09 22.59 25.59

928 1400 2760 16 1.910 20 2.387 1.250 2.80 4.12 6.00 7.12 7.87 8.62 9.37 10.12 10.87 11.62 12.75 13.87 15.00 16.12 17.62 19.12 20.62 22.12 23.62 26.62

928 1400 2760 24 2.865 30 3.581 1.250 4.30 5.43 6.18 6.93 7.68 8.43 9.18 9.93 11.06 12.18 13.31 14.43 15.93 17.43 18.93 20.43 21.93 24.93

928 1400 2760 32 3.820 40 4.775 1.250 5.23 5.98 6.73 7.48 8.24 9.36 10.49 11.61 12.74 14.24 15.74 17.24 18.74 20.24 23.24

928 1400 2760 48 5.730 60 7.162 1.250 7.09 8.22 9.35 10.85 12.35 13.86 15.36 16.86 19.86

918 1385 2731 19 2.268 24 2.865 1.263 3.46 5.34 6.46 7.21 7.96 8.71 9.46 10.21 10.96 12.09 13.22 14.34 15.47 16.97 18.47 19.97 21.47 22.97 25.97

911 1375 2711 22 2.626 28 3.342 1.273 4.67 5.80 6.55 7.30 8.05 8.81 9.56 10.31 11.43 12.56 13.68 14.81 16.31 17.81 19.31 20.81 22.31 25.31

902 1361 2683 14 1.671 18 2.149 1.286 3.18 4.49 6.37 7.50 8.25 9.00 9.75 10.50 11.25 12.00 13.12 14.25 15.37 16.50 18.00 19.50 21.00 22.50 24.00 27.00

902 1361 2683 28 3.342 36 4.297 1.286 4.47 5.23 5.98 6.73 7.49 8.24 8.99 10.11 11.24 12.37 13.49 14.99 16.49 17.99 19.49 20.99 24.00

896 1352 2666 17 2.029 22 2.626 1.294 3.83 5.71 6.84 7.59 8.34 9.09 9.84 10.59 11.34 12.47 13.59 14.72 15.84 17.34 18.84 20.34 21.84 23.34 26.34

892 1346 2654 20 2.387 26 3.104 1.300 3.17 5.05 6.18 6.93 7.68 8.43 9.18 9.93 10.68 11.81 12.93 14.06 15.18 16.68 18.18 19.68 21.18 22.68 25.68

884 1333 2629 16 1.910 21 2.507 1.313 2.70 4.02 5.90 7.02 7.78 8.53 9.28 10.03 10.78 11.53 12.65 13.78 14.90 16.03 17.53 19.03 20.53 22.03 23.53 26.53

870 1313 2588 12 1.432 16 1.910 1.333 3.55 4.87 6.75 7.87 8.62 9.37 10.12 10.87 11.62 12.37 13.50 14.62 15.75 16.87 18.37 19.87 21.37 22.87 24.37 27.37

870 1313 2588 18 2.149 24 2.865 1.333 3.54 5.43 6.55 7.30 8.05 8.80 9.56 10.31 11.06 12.18 13.31 14.43 15.56 17.06 18.56 20.06 21.56 23.06 26.06

870 1313 2588 21 2.507 28 3.342 1.333 4.76 5.89 6.64 7.39 8.15 8.90 9.65 10.40 11.52 12.65 13.77 14.90 16.40 17.90 19.40 20.90 22.40 25.40

870 1313 2588 24 2.865 32 3.820 1.333 4.10 5.23 5.98 6.73 7.48 8.24 8.99 9.74 10.86 11.99 13.12 14.24 15.74 17.24 18.74 20.24 21.74 24.75

870 1313 2588 30 3.581 40 4.775 1.333 4.65 5.40 6.16 6.91 7.66 8.42 9.54 10.67 11.80 12.92 14.42 15.93 17.43 18.93 20.43 23.43

870 1313 2588 36 4.297 48 5.730 1.333 5.58 6.33 7.09 8.22 9.35 10.48 11.60 13.11 14.61 16.11 17.61 19.11 22.11

855 1289 2542 14 1.671 19 2.268 1.357 3.08 4.40 6.27 7.40 8.15 8.90 9.65 10.40 11.15 11.90 13.03 14.15 15.28 16.40 17.90 19.40 20.90 22.40 23.90 26.90

851 1283 2530 22 2.626 30 3.581 1.364 4.47 5.60 6.36 7.11 7.86 8.61 9.36 10.11 11.24 12.37 13.49 14.62 16.12 17.62 19.12 20.62 22.12 25.12

851 1283 2530 44 5.252 60 7.162 1.364 7.44 8.57 9.70 11.21 12.71 14.22 15.72 17.22 20.23

848 1279 2521 19 2.268 26 3.104 1.368 3.25 5.14 6.27 7.02 7.77 8.52 9.27 10.02 10.77 11.90 13.02 14.15 15.28 16.78 18.28 19.78 21.28 22.78 25.78

844 1273 2509 16 1.910 22 2.626 1.375 3.92 5.80 6.93 7.68 8.43 9.18 9.93 10.68 11.43 12.56 13.68 14.81 15.93 17.43 18.93 20.43 21.93 23.43 26.44

844 1273 2509 32 3.820 44 5.252 1.375 5.58 6.33 7.09 7.84 8.97 10.10 11.23 12.35 13.86 15.36 16.86 18.36 19.86 22.86

838 1264 2492 26 3.104 36 4.297 1.385 4.65 5.40 6.16 6.91 7.66 8.42 9.17 10.29 11.42 12.55 13.67 15.18 16.68 18.18 19.68 21.18 24.18

829 1250 2464 10 1.194 14 1.671 1.400 3.93 5.24 7.12 8.25 9.00 9.75 10.50 11.25 12.00 12.75 13.87 15.00 16.12 17.25 18.75 20.25 21.75 23.25 24.75 27.75

829 1250 2464 20 2.387 28 3.342 1.400 4.85 5.98 6.73 7.49 8.24 8.99 9.74 10.49 11.62 12.74 13.87 14.99 16.49 17.99 19.49 21.00 22.50 25.50

822 1240 2444 17 2.029 24 2.865 1.412 3.63 5.52 6.64 7.39 8.15 8.90 9.65 10.40 11.15 12.27 13.40 14.53 15.65 17.15 18.65 20.15 21.65 23.15 26.15

819 1235 2435 12 1.432 17 2.029 1.417 3.46 4.77 6.65 7.78 8.53 9.28 10.03 10.78 11.53 12.28 13.40 14.53 15.65 16.78 18.28 19.78 21.28 22.78 24.28 27.28

812 1225 2415 14 1.671 20 2.387 1.429 2.98 4.30 6.18 7.30 8.05 8.81 9.56 10.31 11.06 11.81 12.93 14.06 15.18 16.31 17.81 19.31 20.81 22.31 23.81 26.81

812 1225 2415 21 2.507 30 3.581 1.429 4.56 5.69 6.45 7.20 7.95 8.70 9.45 10.20 11.33 12.46 13.58 14.71 16.21 17.71 19.21 20.71 22.21 25.21

812 1225 2415 28 3.342 40 4.775 1.429 4.82 5.58 6.33 7.09 7.84 8.60 9.72 10.85 11.98 13.11 14.61 16.11 17.61 19.11 20.61 23.61

803 1212 2388 18 2.149 26 3.104 1.444 3.34 5.23 6.36 7.11 7.86 8.61 9.36 10.11 10.86 11.99 13.12 14.24 15.37 16.87 18.37 19.87 21.37 22.87 25.87

798 1203 2372 22 2.626 32 3.820 1.455 4.27 5.40 6.16 6.91 7.66 8.42 9.17 9.92 11.05 12.17 13.30 14.42 15.93 17.43 18.93 20.43 21.93 24.93

791 1193 2352 30 3.581 44 5.252 1.467 4.99 5.75 6.51 7.26 8.02 9.15 10.28 11.41 12.53 14.04 15.54 17.04 18.54 20.05 23.05

787 1188 2341 19 2.268 28 3.342 1.474 4.94 6.07 6.82 7.57 8.33 9.08 9.83 10.58 11.71 12.83 13.96 15.08 16.59 18.09 19.59 21.09 22.59 25.59

Key to Horsepower Correction Factor =1.0 =0.8 =0.6

The Driving Force in Power Transmission. Page 67

L, 0.375²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

124L

P.L. 12.375

33 Teeth

150L

P.L. 15.00

40 Teeth

187L

P.L. 18.75

50 Teeth

210L

P.L. 21.00

56 Teeth

225L

P.L. 22.50

60 Teeth

240L

P.L. 24.00

64 Teeth

255L

P.L. 25.50

68 Teeth

270L

P.L. 27.00

72 Teeth

285L

P.L. 28.50

76 Teeth

300L

P.L. 30.00

80 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

773 1167 2300 12 1.432 18 2.149 1.500 3.36 4.67 6.55 7.68 8.43 9.18 9.93 10.68 11.43 12.18 13.31 14.43 15.56 16.68 18.18 19.68 21.18 22.68 24.18 27.19

773 1167 2300 14 1.671 21 2.507 1.500 2.88 4.20 6.08 7.21 7.96 8.71 9.46 10.21 10.96 11.71 12.84 13.96 15.09 16.21 17.71 19.21 20.71 22.21 23.71 26.72

773 1167 2300 16 1.910 24 2.865 1.500 3.72 5.60 6.73 7.48 8.24 8.99 9.74 10.49 11.24 12.37 13.49 14.62 15.74 17.24 18.74 20.24 21.74 23.24 26.25

773 1167 2300 20 2.387 30 3.581 1.500 4.65 5.78 6.54 7.29 8.04 8.79 9.54 10.30 11.42 12.55 13.67 14.80 16.30 17.80 19.30 20.80 22.30 25.31

773 1167 2300 24 2.865 36 4.297 1.500 4.82 5.58 6.33 7.09 7.84 8.60 9.35 10.48 11.60 12.73 13.86 15.36 16.86 18.36 19.86 21.36 24.36

773 1167 2300 32 3.820 48 5.730 1.500 5.16 5.92 6.68 7.44 8.57 9.70 10.83 11.96 13.47 14.97 16.47 17.97 19.48 22.48

773 1167 2300 40 4.775 60 7.162 1.500 6.64 7.78 8.92 10.05 11.56 13.07 14.58 16.08 17.58 20.59

773 1167 2300 48 5.730 72 8.594 1.500 8.12 9.64 11.16 12.67 14.18 15.68 18.70

761 1148 2264 21 2.507 32 3.820 1.524 4.36 5.49 6.25 7.00 7.75 8.51 9.26 10.01 11.14 12.26 13.39 14.52 16.02 17.52 19.02 20.52 22.02 25.02

758 1144 2256 17 2.029 26 3.104 1.529 3.43 5.32 6.45 7.20 7.95 8.70 9.45 10.20 10.96 12.08 13.21 14.33 15.46 16.96 18.46 19.96 21.46 22.96 25.96

754 1138 2243 26 3.104 40 4.775 1.538 4.99 5.75 6.51 7.26 8.02 8.77 9.90 11.03 12.16 13.29 14.79 16.29 17.79 19.29 20.80 23.80

746 1125 2218 18 2.149 28 3.342 1.556 3.13 5.03 6.16 6.91 7.66 8.42 9.17 9.92 10.67 11.80 12.92 14.05 15.18 16.68 18.18 19.68 21.18 22.68 25.68

738 1114 2195 14 1.671 22 2.626 1.571 2.77 4.10 5.98 7.11 7.86 8.61 9.36 10.11 10.86 11.62 12.74 13.87 14.99 16.12 17.62 19.12 20.62 22.12 23.62 26.62

738 1114 2195 28 3.342 44 5.252 1.571 5.16 5.92 6.68 7.44 8.19 9.33 10.46 11.59 12.71 14.22 15.72 17.22 18.73 20.23 23.23

735 1108 2185 19 2.268 30 3.581 1.579 4.74 5.87 6.62 7.38 8.13 8.88 9.63 10.39 11.51 12.64 13.77 14.89 16.39 17.89 19.40 20.90 22.40 25.40

733 1105 2179 12 1.432 19 2.268 1.583 3.25 4.57 6.46 7.58 8.33 9.08 9.84 10.59 11.34 12.09 13.21 14.34 15.46 16.59 18.09 19.59 21.09 22.59 24.09 27.09

725 1094 2156 10 1.194 16 1.910 1.600 3.73 5.05 6.93 8.05 8.80 9.56 10.31 11.06 11.81 12.56 13.68 14.81 15.93 17.06 18.56 20.06 21.56 23.06 24.56 27.56

725 1094 2156 20 2.387 32 3.820 1.600 4.44 5.58 6.33 7.09 7.84 8.60 9.35 10.10 11.23 12.35 13.48 14.61 16.11 17.61 19.11 20.61 22.11 25.11

725 1094 2156 30 3.581 48 5.730 1.600 5.33 6.09 6.85 7.61 8.75 9.88 11.01 12.14 13.64 15.15 16.65 18.16 19.66 22.66

714 1077 2123 16 1.910 26 3.104 1.625 3.51 5.40 6.53 7.29 8.04 8.79 9.54 10.29 11.05 12.17 13.30 14.42 15.55 17.05 18.55 20.05 21.55 23.05 26.06

709 1069 2108 22 2.626 36 4.297 1.636 3.85 4.99 5.75 6.51 7.26 8.02 8.77 9.53 10.65 11.78 12.91 14.04 15.54 17.04 18.54 20.05 21.55 24.55

709 1069 2108 44 5.252 72 8.594 1.636 7.31 8.46 9.99 11.50 13.02 14.53 16.04 19.05

704 1063 2095 17 2.029 28 3.342 1.647 3.21 5.11 6.25 7.00 7.75 8.51 9.26 10.01 10.76 11.89 13.02 14.14 15.27 16.77 18.27 19.77 21.27 22.77 25.77

696 1050 2070 12 1.432 20 2.387 1.667 3.15 4.48 6.36 7.49 8.24 8.99 9.74 10.49 11.24 11.99 13.12 14.24 15.37 16.49 17.99 19.49 21.00 22.50 24.00 27.00

696 1050 2070 18 2.149 30 3.581 1.667 4.82 5.96 6.71 7.47 8.22 8.97 9.72 10.48 11.60 12.73 13.86 14.98 16.48 17.99 19.49 20.99 22.49 25.49

696 1050 2070 24 2.865 40 4.775 1.667 4.40 5.16 5.92 6.68 7.44 8.19 8.95 10.08 11.21 12.34 13.47 14.97 16.47 17.97 19.48 20.98 23.98

696 1050 2070 36 4.297 60 7.162 1.667 6.98 8.12 9.26 10.40 11.91 13.42 14.93 16.44 17.94 20.95

689 1039 2048 19 2.268 32 3.820 1.684 4.53 5.67 6.42 7.18 7.93 8.68 9.44 10.19 11.32 12.44 13.57 14.70 16.20 17.70 19.20 20.70 22.20 25.21

685 1034 2039 26 3.104 44 5.252 1.692 4.56 5.33 6.09 6.85 7.61 8.37 9.50 10.63 11.76 12.89 14.40 15.90 17.40 18.91 20.41 23.41

682 1029 2029 10 1.194 17 2.029 1.700 3.63 4.95 6.83 7.96 8.71 9.46 10.21 10.96 11.71 12.46 13.59 14.71 15.84 16.96 18.46 19.96 21.46 22.96 24.47 27.47

677 1021 2013 14 1.671 24 2.865 1.714 3.89 5.78 6.91 7.66 8.42 9.17 9.92 10.67 11.42 12.55 13.67 14.80 15.93 17.43 18.93 20.43 21.93 23.43 26.43

677 1021 2013 21 2.507 36 4.297 1.714 3.93 5.08 5.84 6.60 7.35 8.11 8.86 9.61 10.74 11.87 13.00 14.13 15.63 17.13 18.63 20.14 21.64 24.64

677 1021 2013 28 3.342 48 5.730 1.714 5.49 6.26 7.02 7.78 8.92 10.05 11.19 12.32 13.82 15.33 16.83 18.34 19.84 22.84

663 1000 1971 12 1.432 21 2.507 1.750 3.05 4.37 6.26 7.39 8.14 8.89 9.64 10.39 11.14 11.89 13.02 14.15 15.27 16.40 17.90 19.40 20.90 22.40 23.90 26.90

663 1000 1971 16 1.910 28 3.342 1.750 3.30 5.20 6.33 7.09 7.84 8.60 9.35 10.10 10.85 11.98 13.11 14.23 15.36 16.86 18.36 19.86 21.36 22.86 25.87

663 1000 1971 48 5.730 84 10.027 1.750 8.35 9.89 11.42 12.95 14.46 17.49

657 992 1955 17 2.029 30 3.581 1.765 4.91 6.04 6.80 7.55 8.31 9.06 9.81 10.57 11.69 12.82 13.95 15.07 16.58 18.08 19.58 21.08 22.58 25.58

653 984 1941 18 2.149 32 3.820 1.778 4.61 5.75 6.51 7.26 8.02 8.77 9.53 10.28 11.41 12.53 13.66 14.79 16.29 17.79 19.29 20.80 22.30 25.30

644 972 1917 10 1.194 18 2.149 1.800 3.53 4.85 6.73 7.86 8.61 9.36 10.11 10.86 11.61 12.37 13.49 14.62 15.74 16.87 18.37 19.87 21.37 22.87 24.37 27.37

644 972 1917 20 2.387 36 4.297 1.800 4.01 5.16 5.92 6.68 7.44 8.19 8.95 9.70 10.83 11.96 13.09 14.22 15.72 17.22 18.73 20.23 21.73 24.73

644 972 1917 40 4.775 72 8.594 1.800 7.63 8.79 10.32 11.85 13.36 14.88 16.39 19.41

638 963 1898 22 2.626 40 4.775 1.818 4.56 5.33 6.09 6.85 7.61 8.37 9.12 10.26 11.39 12.52 13.64 15.15 16.65 18.16 19.66 21.16 24.16

633 955 1882 12 1.432 22 2.626 1.833 2.94 4.27 6.16 7.29 8.04 8.79 9.54 10.30 11.05 11.80 12.92 14.05 15.18 16.30 17.80 19.30 20.80 22.30 23.81 26.81

633 955 1882 24 2.865 44 5.252 1.833 4.72 5.49 6.26 7.02 7.78 8.54 9.68 10.81 11.94 13.07 14.58 16.08 17.58 19.09 20.59 23.59

628 948 1869 26 3.104 48 5.730 1.846 4.88 5.66 6.43 7.19 7.95 9.09 10.23 11.36 12.49 14.00 15.51 17.01 18.52 20.02 23.02

625 942 1858 14 1.671 26 3.104 1.857 3.68 5.58 6.71 7.47 8.22 8.97 9.72 10.48 11.23 12.35 13.48 14.61 15.73 17.23 18.74 20.24 21.74 23.24 26.24

619 933 1840 16 1.910 30 3.581 1.875 4.99 6.13 6.89 7.64 8.40 9.15 9.90 10.65 11.78 12.91 14.04 15.16 16.67 18.17 19.67 21.17 22.67 25.67

619 933 1840 32 3.820 60 7.162 1.875 6.15 7.31 8.46 9.60 10.74 12.26 13.77 15.28 16.79 18.30 21.31

Key to Horsepower Correction Factor =1.0 =0.8 =0.6

Page 68 The Gates Rubber Company

L, 0.375²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

124L

P.L. 12.375

33 Teeth

150L

P.L. 15.00

40 Teeth

187L

P.L. 18.75

50 Teeth

210L

P.L. 21.00

56 Teeth

225L

P.L. 22.50

60 Teeth

240L

P.L. 24.00

64 Teeth

255L

P.L. 25.50

68 Teeth

270L

P.L. 27.00

72 Teeth

285L

P.L. 28.50

76 Teeth

300L

P.L. 30.00

80 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

616 930 1833 17 2.029 32 3.820 1.882 4.70 5.84 6.60 7.35 8.11 8.86 9.61 10.37 11.50 12.62 13.75 14.88 16.38 17.88 19.39 20.89 22.39 25.39

612 924 1821 19 2.268 36 4.297 1.895 4.09 5.25 6.01 6.77 7.53 8.28 9.04 9.79 10.92 12.05 13.18 14.31 15.81 17.31 18.82 20.32 21.82 24.82

611 921 1816 10 1.194 19 2.268 1.900 3.43 4.75 6.63 7.76 8.51 9.27 10.02 10.77 11.52 12.27 13.40 14.52 15.65 16.77 18.27 19.77 21.27 22.77 24.28 27.28

609 919 1811 21 2.507 40 4.775 1.905 4.64 5.41 6.18 6.94 7.70 8.45 9.21 10.34 11.47 12.60 13.73 15.24 16.74 18.25 19.75 21.25 24.25

608 917 1807 44 5.252 84 10.027 1.909 8.67 10.22 11.76 13.28 14.81 17.84

580 875 1725 10 1.194 20 2.387 2.000 3.32 4.65 6.54 7.66 8.42 9.17 9.92 10.67 11.42 12.17 13.30 14.43 15.55 16.68 18.18 19.68 21.18 22.68 24.18 27.18

580 875 1725 12 1.432 24 2.865 2.000 2.72 4.06 5.96 7.09 7.84 8.60 9.35 10.10 10.85 11.60 12.73 13.86 14.98 16.11 17.61 19.11 20.61 22.11 23.61 26.62

580 875 1725 14 1.671 28 3.342 2.000 3.46 5.37 6.51 7.26 8.02 8.77 9.53 10.28 11.03 12.16 13.29 14.41 15.54 17.04 18.54 20.05 21.55 23.05 26.05

580 875 1725 16 1.910 32 3.820 2.000 4.78 5.92 6.68 7.44 8.19 8.95 9.70 10.46 11.59 12.71 13.84 14.97 16.47 17.97 19.48 20.98 22.48 25.48

580 875 1725 18 2.149 36 4.297 2.000 4.17 5.33 6.09 6.85 7.61 8.37 9.12 9.88 11.01 12.14 13.27 14.40 15.90 17.40 18.91 20.41 21.91 24.91

580 875 1725 20 2.387 40 4.775 2.000 4.72 5.49 6.26 7.02 7.78 8.54 9.30 10.43 11.56 12.69 13.82 15.33 16.83 18.34 19.84 21.34 24.35

580 875 1725 22 2.626 44 5.252 2.000 4.89 5.66 6.43 7.19 7.95 8.71 9.85 10.98 12.12 13.25 14.75 16.26 17.76 19.27 20.77 23.78

580 875 1725 24 2.865 48 5.730 2.000 5.04 5.82 6.59 7.36 8.12 9.26 10.40 11.54 12.67 14.18 15.68 17.19 18.69 20.20 23.21

580 875 1725 30 3.581 60 7.162 2.000 6.31 7.47 8.63 9.77 10.92 12.43 13.95 15.46 16.97 18.48 21.49

580 875 1725 36 4.297 72 8.594 2.000 6.78 7.96 9.12 10.66 12.19 13.71 15.22 16.74 19.76

580 875 1725 48 5.730 96 11.459 2.000 10.09 11.65 13.19 16.25

554 835 1647 21 2.507 44 5.252 2.095 4.97 5.74 6.51 7.28 8.04 8.80 9.94 11.07 12.20 13.34 14.84 16.35 17.85 19.36 20.86 23.87

552 833 1643 10 1.194 21 2.507 2.100 3.21 4.55 6.43 7.56 8.32 9.07 9.82 10.57 11.32 12.08 13.20 14.33 15.45 16.58 18.08 19.58 21.08 22.58 24.08 27.09

552 833 1643 40 4.775 84 10.027 2.100 8.99 10.55 12.09 13.62 15.15 18.18

551 831 1639 19 2.268 40 4.775 2.105 4.80 5.58 6.34 7.11 7.87 8.63 9.38 10.52 11.65 12.78 13.91 15.42 16.92 18.43 19.93 21.43 24.44

548 826 1629 17 2.029 36 4.297 2.118 4.25 5.41 6.18 6.94 7.70 8.46 9.21 9.97 11.10 12.23 13.36 14.49 15.99 17.49 19.00 20.50 22.00 25.01

541 817 1610 14 1.671 30 3.581 2.143 3.23 5.16 6.30 7.06 7.82 8.57 9.33 10.08 10.83 11.96 13.09 14.22 15.35 16.85 18.35 19.85 21.35 22.86 25.86

541 817 1610 28 3.342 60 7.162 2.143 5.68 6.47 7.64 8.79 9.94 11.09 12.61 14.12 15.63 17.14 18.65 21.67

535 808 1592 12 1.432 26 3.104 2.167 3.85 5.75 6.89 7.64 8.40 9.15 9.90 10.65 11.41 12.53 13.66 14.79 15.92 17.42 18.92 20.42 21.92 23.42 26.42

532 802 1581 22 2.626 48 5.730 2.182 5.20 5.98 6.76 7.53 8.29 9.43 10.57 11.71 12.84 14.35 15.86 17.37 18.87 20.38 23.39

532 802 1581 44 5.252 96 11.459 2.182 8.82 10.41 11.97 13.52 16.58

527 795 1568 10 1.194 22 2.626 2.200 3.10 4.44 6.33 7.47 8.22 8.97 9.72 10.48 11.23 11.98 13.11 14.23 15.36 16.48 17.99 19.49 20.99 22.49 23.99 26.99

527 795 1568 20 2.387 44 5.252 2.200 4.26 5.05 5.82 6.59 7.36 8.12 8.88 10.02 11.16 12.29 13.42 14.93 16.44 17.94 19.45 20.95 23.96

522 788 1553 18 2.149 40 4.775 2.222 4.88 5.66 6.43 7.19 7.95 8.71 9.47 10.61 11.74 12.87 14.00 15.51 17.01 18.52 20.02 21.52 24.53

516 778 1533 16 1.910 36 4.297 2.250 4.33 5.49 6.26 7.02 7.78 8.54 9.30 10.05 11.19 12.32 13.45 14.58 16.08 17.58 19.09 20.59 22.09 25.10

516 778 1533 32 3.820 72 8.594 2.250 7.09 8.28 9.45 10.99 12.52 14.05 15.57 17.08 20.11

508 766 1509 14 1.671 32 3.820 2.286 4.95 6.09 6.85 7.61 8.37 9.12 9.88 10.63 11.76 12.89 14.02 15.15 16.65 18.16 19.66 21.16 22.66 25.66

508 766 1509 21 2.507 48 5.730 2.286 4.49 5.28 6.07 6.84 7.61 8.38 9.52 10.66 11.80 12.93 14.44 15.95 17.46 18.96 20.47 23.48

503 758 1495 26 3.104 60 7.162 2.308 5.83 6.62 7.80 8.96 10.11 11.25 12.78 14.29 15.81 17.32 18.83 21.84

501 756 1490 19 2.268 44 5.252 2.316 4.33 5.13 5.90 6.68 7.44 8.21 8.97 10.11 11.24 12.38 13.51 15.02 16.53 18.03 19.54 21.04 24.05

497 750 1479 12 1.432 28 3.342 2.333 3.62 5.54 6.68 7.44 8.19 8.95 9.70 10.46 11.21 12.34 13.47 14.59 15.72 17.22 18.73 20.23 21.73 23.23 26.23

497 750 1479 36 4.297 84 10.027 2.333 7.71 9.31 10.87 12.42 13.95 15.48 18.53

493 744 1466 17 2.029 40 4.775 2.353 3.78 4.97 5.74 6.51 7.28 8.04 8.80 9.56 10.69 11.83 12.96 14.09 15.60 17.10 18.61 20.11 21.61 24.62

483 729 1438 10 1.194 24 2.865 2.400 2.88 4.23 6.13 7.26 8.02 8.77 9.53 10.28 11.03 11.78 12.91 14.04 15.16 16.29 17.79 19.29 20.80 22.30 23.80 26.80

483 729 1438 20 2.387 48 5.730 2.400 4.57 5.36 6.15 6.92 7.69 8.46 9.60 10.74 11.88 13.02 14.53 16.04 17.55 19.05 20.56 23.57

483 729 1438 30 3.581 72 8.594 2.400 7.25 8.44 9.61 11.15 12.69 14.22 15.74 17.26 20.28

483 729 1438 40 4.775 96 11.459 2.400 9.13 10.72 12.29 13.84 16.92

475 716 1411 18 2.149 44 5.252 2.444 4.41 5.20 5.99 6.76 7.53 8.29 9.05 10.19 11.33 12.47 13.60 15.11 16.61 18.12 19.63 21.13 24.14

464 700 1380 12 1.432 30 3.581 2.500 3.39 5.33 6.47 7.23 7.99 8.75 9.50 10.26 11.01 12.14 13.27 14.40 15.53 17.03 18.53 20.03 21.54 23.04 26.04

464 700 1380 16 1.910 40 4.775 2.500 3.86 5.04 5.82 6.59 7.36 8.12 8.88 9.64 10.78 11.91 13.05 14.18 15.68 17.19 18.69 20.20 21.70 24.71

464 700 1380 24 2.865 60 7.162 2.500 5.98 6.78 7.96 9.12 10.27 11.42 12.95 14.46 15.98 17.49 19.00 22.02

464 700 1380 48 5.730 120 14.324 2.500 10.34 13.56

Key to Horsepower Correction Factor =1.0 =0.8 =0.6

The Driving Force in Power Transmission. Page 69

L, 0.375²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

124L

P.L. 12.375

33 Teeth

150L

P.L. 15.00

40 Teeth

187L

P.L. 18.75

50 Teeth

210L

P.L. 21.00

56 Teeth

225L

P.L. 22.50

60 Teeth

240L

P.L. 24.00

64 Teeth

255L

P.L. 25.50

68 Teeth

270L

P.L. 27.00

72 Teeth

285L

P.L. 28.50

76 Teeth

300L

P.L. 30.00

80 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

459 693 1366 19 2.268 48 5.730 2.526 4.64 5.44 6.23 7.00 7.77 8.54 9.69 10.83 11.97 13.10 14.62 16.13 17.63 19.14 20.65 23.66

451 681 1342 14 1.671 36 4.297 2.571 4.49 5.66 6.43 7.19 7.95 8.71 9.47 10.23 11.36 12.49 13.62 14.75 16.26 17.76 19.27 20.77 22.27 25.28

451 681 1342 28 3.342 72 8.594 2.571 6.18 7.40 8.60 9.77 11.32 12.86 14.39 15.91 17.43 20.46

448 676 1333 17 2.029 44 5.252 2.588 4.49 5.28 6.07 6.84 7.61 8.38 9.14 10.28 11.42 12.55 13.69 15.20 16.70 18.21 19.72 21.22 24.23

446 673 1327 10 1.194 26 3.104 2.600 2.64 4.01 5.92 7.06 7.82 8.57 9.33 10.08 10.83 11.58 12.71 13.84 14.97 16.10 17.60 19.10 20.60 22.10 23.61 26.61

442 667 1314 32 3.820 84 10.027 2.625 8.02 9.62 11.19 12.74 14.29 15.82 18.87

435 656 1294 12 1.432 32 3.820 2.667 3.15 5.11 6.26 7.02 7.78 8.54 9.30 10.05 10.81 11.94 13.07 14.20 15.33 16.83 18.34 19.84 21.34 22.84 25.85

435 656 1294 18 2.149 48 5.730 2.667 4.72 5.52 6.31 7.08 7.86 8.63 9.77 10.91 12.05 13.19 14.70 16.21 17.72 19.23 20.73 23.74

435 656 1294 36 4.297 96 11.459 2.667 9.44 11.04 12.61 14.17 17.25

425 642 1265 22 2.626 60 7.162 2.727 5.32 6.14 6.94 8.12 9.28 10.44 11.59 13.12 14.64 16.15 17.67 19.18 22.20

425 642 1265 44 5.252 120 14.324 2.727 10.64 13.88

422 636 1255 16 1.910 44 5.252 2.750 4.57 5.36 6.15 6.92 7.69 8.46 9.22 10.36 11.50 12.64 13.77 15.28 16.79 18.30 19.80 21.31 24.32

419 632 1246 26 3.104 72 8.594 2.769 6.33 7.56 8.75 9.93 11.48 13.02 14.55 16.08 17.60 20.63

414 625 1232 10 1.194 28 3.342 2.800 3.78 5.71 6.85 7.61 8.37 9.12 9.88 10.63 11.39 12.52 13.65 14.77 15.90 17.40 18.91 20.41 21.91 23.41 26.42

414 625 1232 30 3.581 84 10.027 2.800 8.17 9.78 11.35 12.91 14.45 15.99 19.04

411 620 1222 17 2.029 48 5.730 2.824 4.79 5.60 6.39 7.17 7.94 8.71 9.86 11.00 12.14 13.28 14.79 16.30 17.81 19.32 20.82 23.83

406 613 1208 14 1.671 40 4.775 2.857 4.01 5.20 5.98 6.76 7.53 8.29 9.05 9.81 10.95 12.09 13.22 14.35 15.86 17.37 18.87 20.38 21.88 24.89

406 613 1208 21 2.507 60 7.162 2.857 5.40 6.21 7.02 8.20 9.37 10.52 11.67 13.20 14.72 16.24 17.75 19.27 22.28

387 583 1150 10 1.194 30 3.581 3.000 3.55 5.49 6.64 7.40 8.16 8.92 9.68 10.43 11.19 12.32 13.45 14.58 15.70 17.21 18.71 20.21 21.72 23.22 26.22

387 583 1150 12 1.432 36 4.297 3.000 4.65 5.82 6.59 7.36 8.12 8.88 9.64 10.40 11.54 12.67 13.80 14.93 16.44 17.94 19.45 20.95 22.45 25.46

387 583 1150 16 1.910 48 5.730 3.000 4.87 5.68 6.47 7.25 8.02 8.79 9.94 11.08 12.23 13.36 14.88 16.39 17.90 19.41 20.91 23.92

387 583 1150 20 2.387 60 7.162 3.000 5.47 6.29 7.09 8.28 9.45 10.61 11.76 13.29 14.81 16.33 17.84 19.35 22.37

387 583 1150 24 2.865 72 8.594 3.000 6.48 7.71 8.91 10.09 11.65 13.19 14.72 16.25 17.77 20.80

387 583 1150 28 3.342 84 10.027 3.000 7.07 8.32 9.93 11.51 13.07 14.62 16.15 19.21

387 583 1150 32 3.820 96 11.459 3.000 8.08 9.74 11.35 12.93 14.49 17.58

387 583 1150 40 4.775 120 14.324 3.000 10.94 14.19

369 557 1098 14 1.671 44 5.252 3.143 4.72 5.52 6.31 7.09 7.86 8.63 9.39 10.54 11.68 12.81 13.95 15.46 16.97 18.48 19.98 21.49 24.50

367 554 1093 19 2.268 60 7.162 3.158 5.54 6.37 7.17 8.36 9.53 10.69 11.84 13.37 14.89 16.41 17.93 19.44 22.46

363 547 1078 10 1.194 32 3.820 3.200 3.30 5.27 6.43 7.19 7.95 8.71 9.47 10.23 10.98 12.12 13.25 14.38 15.51 17.01 18.52 20.02 21.52 23.02 26.03

363 547 1078 30 3.581 96 11.459 3.200 8.22 9.89 11.51 13.09 14.65 17.75

359 542 1068 26 3.104 84 10.027 3.231 7.21 8.47 10.09 11.67 13.23 14.78 16.32 19.38

354 535 1054 22 2.626 72 8.594 3.273 6.63 7.86 9.07 10.25 11.81 13.35 14.89 16.42 17.94 20.98

348 525 1035 12 1.432 40 4.775 3.333 4.16 5.36 6.15 6.92 7.69 8.46 9.22 9.98 11.12 12.26 13.40 14.53 16.04 17.55 19.05 20.56 22.06 25.07

348 525 1035 18 2.149 60 7.162 3.333 5.62 6.44 7.25 8.44 9.61 10.77 11.92 13.45 14.98 16.50 18.01 19.53 22.55

348 525 1035 36 4.297 120 14.324 3.333 9.52 11.24 14.50

338 510 1006 14 1.671 48 5.730 3.429 4.18 5.02 5.83 6.62 7.41 8.18 8.96 10.11 11.25 12.40 13.53 15.05 16.56 18.07 19.58 21.09 24.10

338 510 1006 21 2.507 72 8.594 3.429 6.70 7.94 9.15 10.33 11.89 13.44 14.97 16.50 18.02 21.06

338 510 1006 28 3.342 96 11.459 3.429 8.37 10.04 11.66 13.25 14.82 17.91

331 500 986 24 2.865 84 10.027 3.500 7.36 8.62 10.24 11.83 13.39 14.94 16.48 19.55

329 496 978 17 2.029 60 7.162 3.529 4.83 5.69 6.52 7.33 8.52 9.69 10.85 12.01 13.54 15.06 16.58 18.10 19.61 22.64

322 486 958 10 1.194 36 4.297 3.600 4.81 5.99 6.76 7.53 8.29 9.05 9.81 10.57 11.71 12.84 13.98 15.11 16.61 18.12 19.63 21.13 22.63 25.64

322 486 958 20 2.387 72 8.594 3.600 6.78 8.02 9.22 10.41 11.97 13.52 15.05 16.58 18.11 21.15

316 477 941 12 1.432 44 5.252 3.667 4.87 5.68 6.47 7.25 8.02 8.79 9.56 10.70 11.85 12.98 14.12 15.63 17.14 18.65 20.16 21.67 24.68

314 474 934 26 3.104 96 11.459 3.692 8.52 10.19 11.82 13.41 14.98 18.08

309 467 920 16 1.910 60 7.162 3.750 4.90 5.77 6.59 7.40 8.60 9.77 10.93 12.09 13.62 15.15 16.67 18.18 19.70 22.72

309 467 920 32 3.820 120 14.324 3.750 9.81 11.53 14.81

306 462 910 19 2.268 72 8.594 3.789 6.85 8.09 9.30 10.49 12.05 13.60 15.14 16.67 18.19 21.23

304 458 904 22 2.626 84 10.027 3.818 7.51 8.77 10.40 11.99 13.55 15.11 16.65 19.71

Key to Horsepower Correction Factor =1.0 =0.8 =0.6 =0.4

Page 70 The Gates Rubber Company

L, 0.375²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

124L

P.L. 12.375

33 Teeth

150L

P.L. 15.00

40 Teeth

187L

P.L. 18.75

50 Teeth

210L

P.L. 21.00

56 Teeth

225L

P.L. 22.50

60 Teeth

240L

P.L. 24.00

64 Teeth

255L

P.L. 25.50

68 Teeth

270L

P.L. 27.00

72 Teeth

285L

P.L. 28.50

76 Teeth

300L

P.L. 30.00

80 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

290 438 863 10 1.194 40 4.775 4.000 4.31 5.52 6.31 7.08 7.86 8.63 9.39 10.15 11.29 12.43 13.57 14.70 16.21 17.72 19.23 20.73 22.24 25.25

290 438 863 12 1.432 48 5.730 4.000 4.33 5.17 5.98 6.78 7.57 8.35 9.12 10.27 11.42 12.57 13.71 15.22 16.74 18.25 19.76 21.27 24.28

290 438 863 18 2.149 72 8.594 4.000 5.61 6.92 8.17 9.38 10.57 12.13 13.68 15.22 16.75 18.28 21.32

290 438 863 21 2.507 84 10.027 4.000 7.58 8.84 10.47 12.07 13.63 15.19 16.73 19.80

290 438 863 24 2.865 96 11.459 4.000 8.66 10.34 11.97 13.56 15.14 18.24

290 438 863 30 3.581 120 14.324 4.000 9.95 11.68 14.96

276 417 821 20 2.387 84 10.027 4.200 7.65 8.92 10.55 12.14 13.71 15.27 16.81 19.88

274 413 815 17 2.029 72 8.594 4.235 5.68 7.00 8.24 9.46 10.65 12.21 13.76 15.30 16.84 18.36 21.40

271 408 805 14 1.671 60 7.162 4.286 5.05 5.91 6.75 7.56 8.75 9.93 11.10 12.25 13.79 15.32 16.84 18.36 19.87 22.90

271 408 805 28 3.342 120 14.324 4.286 10.09 11.83 15.12

266 401 791 22 2.626 96 11.459 4.364 8.80 10.49 12.12 13.72 15.30 18.41

264 398 784 10 1.194 44 5.252 4.400 3.75 5.02 5.83 6.62 7.41 8.18 8.96 9.72 10.87 12.02 13.16 14.29 15.81 17.32 18.83 20.34 21.84 24.85

262 396 780 19 2.268 84 10.027 4.421 6.37 7.72 8.99 10.63 12.22 13.79 15.35 16.90 19.97

258 389 767 16 1.910 72 8.594 4.500 5.75 7.07 8.32 9.53 10.73 12.29 13.84 15.39 16.92 18.45 21.49

254 383 755 21 2.507 96 11.459 4.571 8.88 10.57 12.20 13.80 15.37 18.49

251 379 748 26 3.104 120 14.324 4.615 10.23 11.97 15.27

249 375 739 18 2.149 84 10.027 4.667 6.44 7.79 9.07 10.70 12.30 13.87 15.43 16.98 20.05

242 365 719 10 1.194 48 5.730 4.800 4.47 5.32 6.14 6.94 7.73 8.51 9.28 10.44 11.59 12.73 13.88 15.39 16.91 18.42 19.93 21.44 24.46

242 365 719 20 2.387 96 11.459 4.800 7.13 8.95 10.64 12.28 13.88 15.45 18.57

235 354 698 17 2.029 84 10.027 4.941 6.51 7.87 9.14 10.78 12.38 13.95 15.51 17.06 20.13

232 350 690 12 1.432 60 7.162 5.000 5.19 6.06 6.90 7.71 8.91 10.09 11.26 12.42 13.96 15.48 17.01 18.53 20.05 23.07

232 350 690 24 2.865 120 14.324 5.000 10.37 12.12 15.42

230 346 683 19 2.268 96 11.459 5.053 7.19 9.02 10.72 12.35 13.96 15.53 18.65

226 340 671 14 1.671 72 8.594 5.143 5.89 7.22 8.47 9.69 10.88 12.45 14.01 15.55 17.09 18.62 21.66

221 333 657 16 1.910 84 10.027 5.250 6.58 7.94 9.22 10.86 12.46 14.03 15.59 17.14 20.22

218 328 647 18 2.149 96 11.459 5.333 7.26 9.09 10.79 12.43 14.03 15.61 18.73

213 321 633 22 2.626 120 14.324 5.455 10.51 12.26 15.58

205 310 611 17 2.029 96 11.459 5.647 7.33 9.16 10.87 12.51 14.11 15.69 18.81

203 306 604 21 2.507 120 14.324 5.714 8.68 10.58 12.34 15.65

193 292 575 10 1.194 60 7.162 6.000 4.37 5.33 6.20 7.05 7.86 9.07 10.25 11.42 12.58 14.12 15.65 17.18 18.70 20.22 23.25

193 292 575 12 1.432 72 8.594 6.000 6.03 7.36 8.62 9.84 11.04 12.61 14.17 15.72 17.25 18.78 21.83

193 292 575 14 1.671 84 10.027 6.000 6.71 8.08 9.36 11.01 12.61 14.19 15.76 17.31 20.38

193 292 575 16 1.910 96 11.459 6.000 7.40 9.24 10.94 12.58 14.19 15.77 18.89

193 292 575 20 2.387 120 14.324 6.000 8.75 10.66 12.41 15.73

184 277 546 19 2.268 120 14.324 6.316 8.81 10.73 12.48 15.80

174 263 518 18 2.149 120 14.324 6.667 8.88 10.80 12.56 15.88

169 255 503 14 1.671 96 11.459 6.857 7.53 9.38 11.09 12.74 14.34 15.93 19.06

166 250 493 12 1.432 84 10.027 7.000 6.85 8.22 9.51 11.16 12.77 14.35 15.92 17.47 20.55

164 248 489 17 2.029 120 14.324 7.059 8.95 10.87 12.63 15.96

161 243 479 10 1.194 72 8.594 7.200 5.17 6.16 7.51 8.77 9.99 11.20 12.77 14.33 15.88 17.42 18.95 22.00

155 233 460 16 1.910 120 14.324 7.500 9.01 10.94 12.70 16.03

145 219 431 12 1.432 96 11.459 8.000 7.67 9.52 11.24 12.89 14.50 16.09 19.22

138 208 411 10 1.194 84 10.027 8.400 6.99 8.37 9.66 11.31 12.92 14.51 16.08 17.63 20.71

135 204 403 14 1.671 120 14.324 8.571 9.15 11.08 12.85 16.18

121 182 359 10 1.194 96 11.459 9.600 7.80 9.66 11.38 13.04 14.65 16.24 19.38

116 175 345 12 1.432 120 14.324 10.000 9.28 11.22 12.99 16.34

97 146 288 10 1.194 120 14.324 12.000 9.41 11.36 13.13 16.49

Key to Horsepower Correction Factor =1.0 =0.8 =0.6 =0.4 =0.2

The Driving Force in Power Transmission. Page 71

H, 0.500²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

240H

P.L. 24.00

48 Teeth

270H

P.L. 27.00

54 Teeth

300H

P.L. 30.00

60 Teeth

330H

P.L. 33.00

66 Teeth

360H

P.L. 36.00

72 Teeth

390H

P.L. 39.00

78 Teeth

420H

P.L. 42.00

84 Teeth

450H

P.L. 45.00

90 Teeth

480H

P.L. 48.00

96 Teeth

510H

P.L. 51.00

102 Teeth

540H

P.L. 54.00

108 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

1160 1750 3450 14 2.228 14 2.228 1.000 8.50 10.00 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 23.50 25.00 26.50 28.00 29.50 31.50 34.00 36.50 39.00 41.50 46.50 51.50 59.00 66.50 81.50

1160 1750 3450 16 2.546 16 2.546 1.000 8.00 9.50 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.00 24.50 26.00 27.50 29.00 31.00 33.50 36.00 38.50 41.00 46.00 51.00 58.50 66.00 81.00

1160 1750 3450 18 2.865 18 2.865 1.000 7.50 9.00 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 22.50 24.00 25.50 27.00 28.50 30.50 33.00 35.50 38.00 40.50 45.50 50.50 58.00 65.50 80.50

1160 1750 3450 19 3.024 19 3.024 1.000 7.25 8.75 10.25 11.75 13.25 14.75 16.25 17.75 19.25 20.75 22.25 23.75 25.25 26.75 28.25 30.25 32.75 35.25 37.75 40.25 45.25 50.25 57.75 65.25 80.25

1160 1750 3450 20 3.183 20 3.183 1.000 7.00 8.50 10.00 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 23.50 25.00 26.50 28.00 30.00 32.50 35.00 37.50 40.00 45.00 50.00 57.50 65.00 80.00

1160 1750 3450 21 3.342 21 3.342 1.000 6.75 8.25 9.75 11.25 12.75 14.25 15.75 17.25 18.75 20.25 21.75 23.25 24.75 26.25 27.75 29.75 32.25 34.75 37.25 39.75 44.75 49.75 57.25 64.75 79.75

1160 1750 3450 22 3.501 22 3.501 1.000 6.50 8.00 9.50 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.00 24.50 26.00 27.50 29.50 32.00 34.50 37.00 39.50 44.50 49.50 57.00 64.50 79.50

1160 1750 3450 24 3.820 24 3.820 1.000 6.00 7.50 9.00 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 22.50 24.00 25.50 27.00 29.00 31.50 34.00 36.50 39.00 44.00 49.00 56.50 64.00 79.00

1160 1750 3450 26 4.138 26 4.138 1.000 5.50 7.00 8.50 10.00 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 23.50 25.00 26.50 28.50 31.00 33.50 36.00 38.50 43.50 48.50 56.00 63.50 78.50

1160 1750 3450 28 4.456 28 4.456 1.000 5.00 6.50 8.00 9.50 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.00 24.50 26.00 28.00 30.50 33.00 35.50 38.00 43.00 48.00 55.50 63.00 78.00

1160 1750 3450 30 4.775 30 4.775 1.000 6.00 7.50 9.00 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 22.50 24.00 25.50 27.50 30.00 32.50 35.00 37.50 42.50 47.50 55.00 62.50 77.50

1160 1750 3450 32 5.093 32 5.093 1.000 5.50 7.00 8.50 10.00 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 23.50 25.00 27.00 29.50 32.00 34.50 37.00 42.00 47.00 54.50 62.00 77.00

1160 1750 3450 36 5.730 36 5.730 1.000 7.50 9.00 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 22.50 24.00 26.00 28.50 31.00 33.50 36.00 41.00 46.00 53.50 61.00 76.00

1160 1750 3450 40 6.366 40 6.366 1.000 8.00 9.50 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.00 25.00 27.50 30.00 32.50 35.00 40.00 45.00 52.50 60.00 75.00

1160 1750 3450 44 7.003 44 7.003 1.000 8.50 10.00 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 24.00 26.50 29.00 31.50 34.00 39.00 44.00 51.50 59.00 74.00

1160 1750 3450 48 7.639 48 7.639 1.000 9.00 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 23.00 25.50 28.00 30.50 33.00 38.00 43.00 50.50 58.00 73.00

1107 1670 3293 21 3.342 22 3.501 1.048 6.63 8.13 9.63 11.13 12.63 14.13 15.63 17.13 18.63 20.13 21.63 23.13 24.63 26.13 27.63 29.63 32.13 34.63 37.13 39.63 44.63 49.63 57.13 64.63 79.63

1105 1667 3286 20 3.183 21 3.342 1.050 6.87 8.37 9.87 11.37 12.88 14.38 15.88 17.38 18.88 20.38 21.88 23.38 24.88 26.38 27.88 29.88 32.38 34.88 37.38 39.88 44.88 49.88 57.38 64.88 79.88

1102 1663 3278 19 3.024 20 3.183 1.053 7.12 8.62 10.12 11.62 13.12 14.62 16.12 17.62 19.12 20.62 22.12 23.62 25.12 26.62 28.12 30.12 32.62 35.12 37.62 40.12 45.12 50.12 57.62 65.12 80.12

1099 1658 3268 18 2.865 19 3.024 1.056 7.37 8.87 10.37 11.87 13.37 14.87 16.37 17.87 19.37 20.87 22.37 23.87 25.37 26.87 28.37 30.37 32.87 35.37 37.87 40.37 45.37 50.37 57.87 65.37 80.37

1088 1641 3234 30 4.775 32 5.093 1.067 5.75 7.25 8.75 10.25 11.75 13.25 14.75 16.25 17.75 19.25 20.75 22.25 23.75 25.25 27.25 29.75 32.25 34.75 37.25 42.25 47.25 54.75 62.25 77.25

1083 1633 3220 28 4.456 30 4.775 1.071 6.25 7.75 9.25 10.75 12.25 13.75 15.25 16.75 18.25 19.75 21.25 22.75 24.25 25.75 27.75 30.25 32.75 35.25 37.75 42.75 47.75 55.25 62.75 77.75

1077 1625 3204 26 4.138 28 4.456 1.077 5.25 6.75 8.25 9.75 11.25 12.75 14.25 15.75 17.25 18.75 20.25 21.75 23.25 24.75 26.25 28.25 30.75 33.25 35.75 38.25 43.25 48.25 55.75 63.25 78.25

1071 1615 3185 24 3.820 26 4.138 1.083 5.75 7.25 8.75 10.25 11.75 13.25 14.75 16.25 17.75 19.25 20.75 22.25 23.75 25.25 26.75 28.75 31.25 33.75 36.25 38.75 43.75 48.75 56.25 63.75 78.75

1063 1604 3163 22 3.501 24 3.820 1.091 6.25 7.75 9.25 10.75 12.25 13.75 15.25 16.75 18.25 19.75 21.25 22.75 24.25 25.75 27.25 29.25 31.75 34.25 36.75 39.25 44.25 49.25 56.75 64.25 79.25

1063 1604 3163 44 7.003 48 7.639 1.091 7.99 9.49 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.50 26.00 28.50 31.00 33.50 38.50 43.50 51.00 58.50 73.50

1055 1591 3136 20 3.183 22 3.501 1.100 6.75 8.25 9.75 11.25 12.75 14.25 15.75 17.25 18.75 20.25 21.75 23.25 24.75 26.25 27.75 29.75 32.25 34.75 37.25 39.75 44.75 49.75 57.25 64.75 79.75

1055 1591 3136 40 6.366 44 7.003 1.100 7.49 8.99 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 22.50 24.50 27.00 29.50 32.00 34.50 39.50 44.50 52.00 59.50 74.50

1050 1583 3121 19 3.024 21 3.342 1.105 7.00 8.50 10.00 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 23.50 25.00 26.50 28.00 30.00 32.50 35.00 37.50 40.00 45.00 50.00 57.50 65.00 80.00

1044 1575 3105 18 2.865 20 3.183 1.111 7.25 8.75 10.25 11.75 13.25 14.75 16.25 17.75 19.25 20.75 22.25 23.75 25.25 26.75 28.25 30.25 32.75 35.25 37.75 40.25 45.25 50.25 57.75 65.25 80.25

1044 1575 3105 36 5.730 40 6.366 1.111 6.99 8.49 9.99 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 23.50 25.50 28.00 30.50 33.00 35.50 40.50 45.50 53.00 60.50 75.50

1031 1556 3067 16 2.546 18 2.865 1.125 7.75 9.25 10.75 12.25 13.75 15.25 16.75 18.25 19.75 21.25 22.75 24.25 25.75 27.25 28.75 30.75 33.25 35.75 38.25 40.75 45.75 50.75 58.25 65.75 80.75

1031 1556 3067 32 5.093 36 5.730 1.125 6.49 7.99 9.49 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.00 24.50 26.50 29.00 31.50 34.00 36.50 41.50 46.50 54.00 61.50 76.50

1015 1531 3019 14 2.228 16 2.546 1.143 8.25 9.75 11.25 12.75 14.25 15.75 17.25 18.75 20.25 21.75 23.25 24.75 26.25 27.75 29.25 31.25 33.75 36.25 38.75 41.25 46.25 51.25 58.75 66.25 81.25

1015 1531 3019 21 3.342 24 3.820 1.143 6.37 7.87 9.37 10.87 12.37 13.87 15.37 16.87 18.37 19.87 21.37 22.87 24.37 25.87 27.37 29.37 31.87 34.37 36.87 39.37 44.37 49.37 56.87 64.37 79.37

1015 1531 3019 28 4.456 32 5.093 1.143 5.99 7.49 8.99 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 22.50 24.00 25.50 27.50 30.00 32.50 35.00 37.50 42.50 47.50 55.00 62.50 77.50

1005 1517 2990 26 4.138 30 4.775 1.154 4.99 6.49 7.99 9.49 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.00 24.50 26.00 28.00 30.50 33.00 35.50 38.00 43.00 48.00 55.50 63.00 78.00

1002 1511 2980 19 3.024 22 3.501 1.158 6.87 8.37 9.87 11.37 12.87 14.37 15.87 17.37 18.87 20.37 21.87 23.37 24.87 26.37 27.87 29.87 32.37 34.87 37.37 39.87 44.87 49.87 57.37 64.87 79.87

994 1500 2957 18 2.865 21 3.342 1.167 7.12 8.62 10.12 11.62 13.12 14.62 16.12 17.62 19.12 20.62 22.12 23.62 25.12 26.62 28.12 30.12 32.62 35.12 37.62 40.12 45.12 50.12 57.62 65.12 80.12

994 1500 2957 24 3.820 28 4.456 1.167 5.49 6.99 8.49 9.99 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 23.50 25.00 26.50 28.50 31.00 33.50 36.00 38.50 43.50 48.50 56.00 63.50 78.50

982 1481 2919 22 3.501 26 4.138 1.182 5.99 7.49 8.99 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 22.50 24.00 25.50 27.00 29.00 31.50 34.00 36.50 39.00 44.00 49.00 56.50 64.00 79.00

977 1474 2905 16 2.546 19 3.024 1.188 7.62 9.12 10.62 12.12 13.62 15.12 16.62 18.12 19.62 21.12 22.62 24.12 25.62 27.12 28.62 30.62 33.12 35.62 38.12 40.62 45.62 50.62 58.12 65.62 80.62

967 1458 2875 20 3.183 24 3.820 1.200 6.49 7.99 9.49 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.00 24.50 26.00 27.50 29.50 32.00 34.50 37.00 39.50 44.50 49.50 57.00 64.50 79.50

967 1458 2875 30 4.775 36 5.730 1.200 6.73 8.24 9.74 11.24 12.74 14.24 15.74 17.24 18.74 20.24 21.74 23.24 24.74 26.75 29.25 31.75 34.25 36.75 41.75 46.75 54.25 61.75 76.75

967 1458 2875 40 6.366 48 7.639 1.200 8.48 9.98 11.48 12.98 14.49 15.99 17.49 18.99 20.49 21.99 23.99 26.49 28.99 31.49 33.99 39.00 44.00 51.50 59.00 74.00

949 1432 2823 18 2.865 22 3.501 1.222 6.99 8.49 10.00 11.50 13.00 14.50 16.00 17.50 19.00 20.50 22.00 23.50 25.00 26.50 28.00 30.00 32.50 35.00 37.50 40.00 45.00 50.00 57.50 65.00 80.00

949 1432 2823 36 5.730 44 7.003 1.222 7.97 9.48 10.98 12.48 13.99 15.49 16.99 18.49 19.99 21.49 22.99 24.99 27.49 29.99 32.49 34.99 39.99 45.00 52.50 60.00 75.00

943 1422 2803 26 4.138 32 5.093 1.231 6.23 7.74 9.24 10.74 12.24 13.74 15.24 16.74 18.24 19.74 21.24 22.74 24.25 25.75 27.75 30.25 32.75 35.25 37.75 42.75 47.75 55.25 62.75 77.75

937 1413 2787 21 3.342 26 4.138 1.238 6.11 7.61 9.12 10.62 12.12 13.62 15.12 16.62 18.12 19.62 21.12 22.62 24.12 25.62 27.12 29.12 31.62 34.12 36.62 39.12 44.12 49.12 56.62 64.12 79.12

928 1400 2760 16 2.546 20 3.183 1.250 7.49 8.99 10.50 12.00 13.50 15.00 16.50 18.00 19.50 21.00 22.50 24.00 25.50 27.00 28.50 30.50 33.00 35.50 38.00 40.50 45.50 50.50 58.00 65.50 80.50

928 1400 2760 24 3.820 30 4.775 1.250 5.23 6.73 8.24 9.74 11.24 12.74 14.24 15.74 17.24 18.74 20.24 21.74 23.24 24.74 26.25 28.25 30.75 33.25 35.75 38.25 43.25 48.25 55.75 63.25 78.25

928 1400 2760 32 5.093 40 6.366 1.250 7.47 8.98 10.48 11.98 13.49 14.99 16.49 17.99 19.49 20.99 22.49 23.99 25.99 28.49 30.99 33.49 35.99 41.00 46.00 53.50 61.00 76.00

928 1400 2760 48 7.639 60 9.549 1.250 8.95 10.46 11.96 13.47 14.97 16.47 17.98 19.48 21.48 23.98 26.48 28.98 31.49 36.49 41.49 48.99 56.49 71.49

918 1385 2731 19 3.024 24 3.820 1.263 6.61 8.11 9.62 11.12 12.62 14.12 15.62 17.12 18.62 20.12 21.62 23.12 24.62 26.12 27.62 29.62 32.12 34.62 37.12 39.62 44.62 49.62 57.12 64.62 79.62

911 1375 2711 22 3.501 28 4.456 1.273 5.73 7.23 8.74 10.24 11.74 13.24 14.74 16.24 17.74 19.24 20.75 22.25 23.75 25.25 26.75 28.75 31.25 33.75 36.25 38.75 43.75 48.75 56.25 63.75 78.75

902 1361 2683 14 2.228 18 2.865 1.286 7.99 9.49 11.00 12.50 14.00 15.50 17.00 18.50 20.00 21.50 23.00 24.50 26.00 27.50 29.00 31.00 33.50 36.00 38.50 41.00 46.00 51.00 58.50 66.00 81.00

902 1361 2683 28 4.456 36 5.730 1.286 5.46 6.97 8.48 9.98 11.48 12.98 14.49 15.99 17.49 18.99 20.49 21.99 23.49 24.99 26.99 29.49 31.99 34.49 36.99 42.00 47.00 54.50 62.00 77.00

892 1346 2654 20 3.183 26 4.138 1.300 6.23 7.74 9.24 10.74 12.24 13.74 15.24 16.74 18.24 19.74 21.24 22.75 24.25 25.75 27.25 29.25 31.75 34.25 36.75 39.25 44.25 49.25 56.75 64.25 79.25

Key to Horsepower Correction Factor =1.0

Page 72 The Gates Rubber Company

H, 0.500²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

240H

P.L. 24.00

48 Teeth

270H

P.L. 27.00

54 Teeth

300H

P.L. 30.00

60 Teeth

330H

P.L. 33.00

66 Teeth

360H

P.L. 36.00

72 Teeth

390H

P.L. 39.00

78 Teeth

420H

P.L. 42.00

84 Teeth

450H

P.L. 45.00

90 Teeth

480H

P.L. 48.00

96 Teeth

510H

P.L. 51.00

102 Teeth

540H

P.L. 54.00

108 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

884 1333 2629 16 2.546 21 3.342 1.313 7.36 8.87 10.37 11.87 13.37 14.87 16.37 17.87 19.37 20.87 22.37 23.87 25.37 26.87 28.37 30.37 32.87 35.37 37.87 40.37 45.37 50.37 57.87 65.37 80.37

870 1313 2588 18 2.865 24 3.820 1.333 6.73 8.24 9.74 11.24 12.74 14.24 15.74 17.24 18.74 20.24 21.74 23.24 24.75 26.25 27.75 29.75 32.25 34.75 37.25 39.75 44.75 49.75 57.25 64.75 79.75

870 1313 2588 21 3.342 28 4.456 1.333 5.85 7.35 8.86 10.36 11.86 13.36 14.87 16.37 17.87 19.37 20.87 22.37 23.87 25.37 26.87 28.87 31.37 33.87 36.37 38.87 43.87 48.87 56.37 63.87 78.87

870 1313 2588 24 3.820 32 5.093 1.333 4.96 6.47 7.97 9.48 10.98 12.48 13.99 15.49 16.99 18.49 19.99 21.49 22.99 24.49 25.99 27.99 30.49 32.99 35.49 37.99 43.00 48.00 55.50 63.00 78.00

870 1313 2588 30 4.775 40 6.366 1.333 6.20 7.71 9.22 10.72 12.22 13.73 15.23 16.73 18.23 19.73 21.23 22.74 24.24 26.24 28.74 31.24 33.74 36.24 41.24 46.24 53.74 61.24 76.25

870 1313 2588 36 5.730 48 7.639 1.333 7.44 8.95 10.46 11.96 13.47 14.97 16.47 17.97 19.48 20.98 22.48 24.48 26.98 29.48 31.99 34.49 39.49 44.49 51.99 59.49 74.49

855 1289 2542 14 2.228 19 3.024 1.357 7.87 9.37 10.87 12.37 13.87 15.37 16.87 18.37 19.87 21.37 22.87 24.37 25.87 27.37 28.87 30.87 33.37 35.87 38.37 40.87 45.87 50.87 58.37 65.87 80.87

851 1283 2530 22 3.501 30 4.775 1.364 5.46 6.97 8.48 9.98 11.48 12.98 14.49 15.99 17.49 18.99 20.49 21.99 23.49 24.99 26.49 28.49 30.99 33.49 35.99 38.49 43.50 48.50 56.00 63.50 78.50

851 1283 2530 44 7.003 60 9.549 1.364 9.41 10.93 12.43 13.94 15.45 16.95 18.46 19.96 21.96 24.47 26.97 29.47 31.97 36.98 41.98 49.48 56.99 71.99

848 1279 2521 19 3.024 26 4.138 1.368 6.35 7.86 9.36 10.86 12.36 13.86 15.36 16.87 18.37 19.87 21.37 22.87 24.37 25.87 27.37 29.37 31.87 34.37 36.87 39.37 44.37 49.37 56.87 64.37 79.37

844 1273 2509 16 2.546 22 3.501 1.375 7.23 8.74 10.24 11.74 13.24 14.74 16.24 17.74 19.24 20.75 22.25 23.75 25.25 26.75 28.25 30.25 32.75 35.25 37.75 40.25 45.25 50.25 57.75 65.25 80.25

844 1273 2509 32 5.093 44 7.003 1.375 6.93 8.45 9.95 11.46 12.96 14.47 15.97 17.47 18.98 20.48 21.98 23.48 25.48 27.98 30.48 32.99 35.49 40.49 45.49 52.99 60.49 75.49

838 1264 2492 26 4.138 36 5.730 1.385 5.69 7.21 8.71 10.22 11.72 13.23 14.73 16.23 17.73 19.23 20.73 22.24 23.74 25.24 27.24 29.74 32.24 34.74 37.24 42.24 47.24 54.74 62.24 77.25

829 1250 2464 20 3.183 28 4.456 1.400 5.97 7.47 8.98 10.48 11.98 13.49 14.99 16.49 17.99 19.49 20.99 22.49 23.99 25.49 26.99 28.99 31.49 33.99 36.49 39.00 44.00 49.00 56.50 64.00 79.00

812 1225 2415 14 2.228 20 3.183 1.429 7.74 9.24 10.74 12.24 13.74 15.24 16.74 18.24 19.74 21.24 22.75 24.25 25.75 27.25 28.75 30.75 33.25 35.75 38.25 40.75 45.75 50.75 58.25 65.75 80.75

812 1225 2415 21 3.342 30 4.775 1.429 5.58 7.09 8.60 10.10 11.60 13.11 14.61 16.11 17.61 19.11 20.61 22.11 23.61 25.11 26.62 28.62 31.12 33.62 36.12 38.62 43.62 48.62 56.12 63.62 78.62

812 1225 2415 28 4.456 40 6.366 1.429 6.43 7.94 9.45 10.96 12.46 13.97 15.47 16.97 18.48 19.98 21.48 22.98 24.48 26.48 28.98 31.49 33.99 36.49 41.49 46.49 53.99 61.49 76.49

803 1212 2388 18 2.865 26 4.138 1.444 6.47 7.97 9.48 10.98 12.48 13.99 15.49 16.99 18.49 19.99 21.49 22.99 24.49 25.99 27.49 29.49 31.99 34.49 36.99 39.49 44.50 49.50 57.00 64.50 79.50

798 1203 2372 22 3.501 32 5.093 1.455 5.19 6.70 8.21 9.72 11.22 12.73 14.23 15.73 17.23 18.73 20.23 21.74 23.24 24.74 26.24 28.24 30.74 33.24 35.74 38.24 43.24 48.24 55.74 63.25 78.25

791 1193 2352 30 4.775 44 7.003 1.467 7.16 8.68 10.19 11.70 13.20 14.71 16.21 17.71 19.22 20.72 22.22 23.72 25.73 28.23 30.73 33.23 35.73 40.73 45.74 53.24 60.74 75.74

787 1188 2341 19 3.024 28 4.456 1.474 6.08 7.59 9.10 10.60 12.10 13.61 15.11 16.61 18.11 19.61 21.11 22.61 24.11 25.62 27.12 29.12 31.62 34.12 36.62 39.12 44.12 49.12 56.62 64.12 79.12

773 1167 2300 14 2.228 21 3.342 1.500 7.60 9.11 10.61 12.11 13.61 15.12 16.62 18.12 19.62 21.12 22.62 24.12 25.62 27.12 28.62 30.62 33.12 35.62 38.12 40.62 45.62 50.62 58.12 65.62 80.62

773 1167 2300 16 2.546 24 3.820 1.500 6.97 8.48 9.98 11.48 12.98 14.49 15.99 17.49 18.99 20.49 21.99 23.49 24.99 26.49 27.99 29.99 32.49 34.99 37.49 40.00 45.00 50.00 57.50 65.00 80.00

773 1167 2300 20 3.183 30 4.775 1.500 5.69 7.21 8.71 10.22 11.72 13.23 14.73 16.23 17.73 19.23 20.73 22.24 23.74 25.24 26.74 28.74 31.24 33.74 36.24 38.74 43.74 48.74 56.24 63.74 78.75

773 1167 2300 24 3.820 36 5.730 1.500 5.92 7.44 8.95 10.46 11.96 13.47 14.97 16.47 17.97 19.48 20.98 22.48 23.98 25.48 27.48 29.98 32.49 34.99 37.49 42.49 47.49 54.99 62.49 77.49

773 1167 2300 32 5.093 48 7.639 1.500 7.90 9.41 10.93 12.44 13.94 15.45 16.95 18.46 19.96 21.46 22.97 24.97 27.47 29.97 32.48 34.98 39.98 44.98 52.48 59.99 74.99

773 1167 2300 40 6.366 60 9.549 1.500 8.35 9.87 11.39 12.90 14.41 15.92 17.43 18.93 20.44 22.44 24.95 27.45 29.96 32.46 37.47 42.47 49.98 57.48 72.48

773 1167 2300 48 7.639 72 11.459 1.500 10.32 11.85 13.36 14.88 16.39 17.90 19.91 22.42 24.93 27.43 29.94 34.95 39.95 47.46 54.97 69.97

761 1148 2264 21 3.342 32 5.093 1.524 5.30 6.82 8.33 9.84 11.34 12.85 14.35 15.85 17.35 18.85 20.36 21.86 23.36 24.86 26.36 28.36 30.86 33.36 35.86 38.37 43.37 48.37 55.87 63.37 78.37

754 1138 2243 26 4.138 40 6.366 1.538 6.66 8.17 9.69 11.19 12.70 14.21 15.71 17.21 18.72 20.22 21.72 23.22 24.73 26.73 29.23 31.73 34.23 36.73 41.74 46.74 54.24 61.74 76.74

746 1125 2218 18 2.865 28 4.456 1.556 6.20 7.71 9.22 10.72 12.22 13.73 15.23 16.73 18.23 19.73 21.24 22.74 24.24 25.74 27.24 29.24 31.74 34.24 36.74 39.24 44.24 49.24 56.74 64.25 79.25

738 1114 2195 14 2.228 22 3.501 1.571 7.47 8.98 10.48 11.98 13.49 14.99 16.49 17.99 19.49 20.99 22.49 23.99 25.49 26.99 28.49 30.49 32.99 35.49 38.00 40.50 45.50 50.50 58.00 65.50 80.50

738 1114 2195 28 4.456 44 7.003 1.571 7.39 8.91 10.42 11.93 13.44 14.95 16.45 17.95 19.46 20.96 22.46 23.97 25.97 28.47 30.97 33.48 35.98 40.98 45.98 53.48 60.99 75.99

735 1108 2185 19 3.024 30 4.775 1.579 5.81 7.32 8.83 10.34 11.84 13.35 14.85 16.35 17.85 19.35 20.86 22.36 23.86 25.36 26.86 28.86 31.36 33.86 36.36 38.86 43.87 48.87 56.37 63.87 78.87

725 1094 2156 20 3.183 32 5.093 1.600 5.42 6.93 8.45 9.95 11.46 12.96 14.47 15.97 17.47 18.98 20.48 21.98 23.48 24.98 26.48 28.48 30.99 33.49 35.99 38.49 43.49 48.49 55.99 63.49 78.49

725 1094 2156 30 4.775 48 7.639 1.600 6.59 8.12 9.64 11.16 12.67 14.18 15.68 17.19 18.70 20.20 21.70 23.21 25.21 27.71 30.22 32.72 35.22 40.22 45.23 52.73 60.23 75.24

714 1077 2123 16 2.546 26 4.138 1.625 6.70 8.21 9.72 11.22 12.73 14.23 15.73 17.23 18.73 20.23 21.74 23.24 24.74 26.24 27.74 29.74 32.24 34.74 37.24 39.74 44.74 49.74 57.24 64.75 79.75

709 1069 2108 22 3.501 36 5.730 1.636 6.15 7.67 9.18 10.69 12.20 13.70 15.21 16.71 18.22 19.72 21.22 22.72 24.22 25.73 27.73 30.23 32.73 35.23 37.73 42.74 47.74 55.24 62.74 77.74

709 1069 2108 44 7.003 72 11.459 1.636 10.77 12.30 13.82 15.34 16.85 18.36 20.38 22.89 25.40 27.91 30.42 35.43 40.44 47.95 55.46 70.46

696 1050 2070 18 2.865 30 4.775 1.667 5.92 7.44 8.95 10.46 11.96 13.47 14.97 16.47 17.97 19.48 20.98 22.48 23.98 25.48 26.98 28.98 31.49 33.99 36.49 38.99 43.99 48.99 56.49 63.99 78.99

696 1050 2070 24 3.820 40 6.366 1.667 6.88 8.40 9.92 11.43 12.94 14.44 15.95 17.45 18.96 20.46 21.96 23.47 24.97 26.97 29.47 31.97 34.48 36.98 41.98 46.98 54.49 61.99 76.99

696 1050 2070 36 5.730 60 9.549 1.667 8.79 10.32 11.85 13.36 14.88 16.39 17.90 19.41 20.91 22.92 25.43 27.93 30.44 32.94 37.95 42.96 50.46 57.97 72.97

689 1039 2048 19 3.024 32 5.093 1.684 5.53 7.05 8.56 10.07 11.58 13.08 14.59 16.09 17.59 19.10 20.60 22.10 23.60 25.10 26.60 28.61 31.11 33.61 36.11 38.61 43.61 48.61 56.12 63.62 78.62

685 1034 2039 26 4.138 44 7.003 1.692 6.08 7.61 9.14 10.65 12.17 13.67 15.18 16.69 18.19 19.70 21.20 22.70 24.21 26.21 28.71 31.22 33.72 36.22 41.22 46.23 53.73 61.23 76.24

677 1021 2013 14 2.228 24 3.820 1.714 7.21 8.71 10.22 11.72 13.23 14.73 16.23 17.73 19.23 20.73 22.24 23.74 25.24 26.74 28.24 30.24 32.74 35.24 37.74 40.24 45.24 50.24 57.74 65.25 80.25

677 1021 2013 21 3.342 36 5.730 1.714 6.26 7.78 9.30 10.81 12.32 13.82 15.33 16.83 18.34 19.84 21.34 22.84 24.35 25.85 27.85 30.35 32.85 35.35 37.86 42.86 47.86 55.36 62.86 77.87

677 1021 2013 28 4.456 48 7.639 1.714 6.81 8.35 9.87 11.39 12.90 14.41 15.92 17.43 18.93 20.44 21.94 23.45 25.45 27.96 30.46 32.96 35.46 40.47 45.47 52.98 60.48 75.48

663 1000 1971 16 2.546 28 4.456 1.750 6.43 7.94 9.45 10.96 12.46 13.97 15.47 16.97 18.48 19.98 21.48 22.98 24.48 25.98 27.48 29.49 31.99 34.49 36.99 39.49 44.49 49.49 56.99 64.49 79.49

663 1000 1971 48 7.639 84 13.369 1.750 11.65 13.19 14.72 16.25 18.28 20.80 23.32 25.84 28.36 33.38 38.39 45.91 53.42 68.44

653 984 1941 18 2.865 32 5.093 1.778 5.64 7.16 8.68 10.19 11.70 13.20 14.71 16.21 17.71 19.22 20.72 22.22 23.72 25.23 26.73 28.73 31.23 33.73 36.23 38.73 43.74 48.74 56.24 63.74 78.74

644 972 1917 20 3.183 36 5.730 1.800 4.83 6.37 7.90 9.41 10.93 12.43 13.94 15.45 16.95 18.46 19.96 21.46 22.96 24.47 25.97 27.97 30.47 32.98 35.48 37.98 42.98 47.98 55.49 62.99 77.99

644 972 1917 40 6.366 72 11.459 1.800 9.66 11.21 12.75 14.27 15.79 17.31 18.83 20.84 23.36 25.87 28.39 30.90 35.91 40.92 48.43 55.94 70.95

638 963 1898 22 3.501 40 6.366 1.818 5.57 7.11 8.63 10.15 11.66 13.17 14.68 16.19 17.69 19.20 20.70 22.20 23.71 25.21 27.21 29.72 32.22 34.72 37.22 42.23 47.23 54.73 62.23 77.24

633 955 1882 24 3.820 44 7.003 1.833 6.30 7.84 9.36 10.88 12.40 13.91 15.42 16.92 18.43 19.94 21.44 22.94 24.45 26.45 28.96 31.46 33.96 36.46 41.47 46.47 53.98 61.48 76.48

628 948 1869 26 4.138 48 7.639 1.846 7.03 8.57 10.10 11.62 13.13 14.65 16.16 17.66 19.17 20.68 22.18 23.69 25.69 28.20 30.70 33.20 35.71 40.71 45.72 53.22 60.73 75.73

625 942 1858 14 2.228 26 4.138 1.857 6.93 8.45 9.95 11.46 12.96 14.47 15.97 17.47 18.98 20.48 21.98 23.48 24.98 26.48 27.98 29.98 32.49 34.99 37.49 39.99 44.99 49.99 57.49 64.99 79.99

619 933 1840 16 2.546 30 4.775 1.875 6.15 7.67 9.18 10.69 12.20 13.70 15.21 16.71 18.22 19.72 21.22 22.72 24.22 25.73 27.23 29.23 31.73 34.23 36.73 39.23 44.24 49.24 56.74 64.24 79.24

619 933 1840 32 5.093 60 9.549 1.875 7.67 9.23 10.77 12.30 13.82 15.34 16.85 18.36 19.88 21.38 23.39 25.90 28.41 30.92 33.43 38.44 43.44 50.95 58.46 73.47

Key to Horsepower Correction Factor =1.0

The Driving Force in Power Transmission. Page 73

H, 0.500²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

240H

P.L. 24.00

48 Teeth

270H

P.L. 27.00

54 Teeth

300H

P.L. 30.00

60 Teeth

330H

P.L. 33.00

66 Teeth

360H

P.L. 36.00

72 Teeth

390H

P.L. 39.00

78 Teeth

420H

P.L. 42.00

84 Teeth

450H

P.L. 45.00

90 Teeth

480H

P.L. 48.00

96 Teeth

510H

P.L. 51.00

102 Teeth

540H

P.L. 54.00

108 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

612 924 1821 19 3.024 36 5.730 1.895 4.94 6.48 8.01 9.53 11.04 12.55 14.06 15.57 17.07 18.58 20.08 21.58 23.08 24.59 26.09 28.09 30.59 33.10 35.60 38.10 43.10 48.11 55.61 63.11 78.11

609 919 1811 21 3.342 40 6.366 1.905 5.67 7.22 8.74 10.26 11.78 13.29 14.80 16.31 17.81 19.32 20.82 22.32 23.83 25.33 27.33 29.84 32.34 34.84 37.34 42.35 47.35 54.85 62.36 77.36

608 917 1807 44 7.003 84 13.369 1.909 10.51 12.08 13.63 15.16 16.70 18.73 21.26 23.79 26.31 28.82 33.85 38.87 46.39 53.91 68.93

580 875 1725 14 2.228 28 4.456 2.000 6.66 8.17 9.69 11.19 12.70 14.21 15.71 17.21 18.72 20.22 21.72 23.22 24.73 26.23 27.73 29.73 32.23 34.73 37.23 39.73 44.74 49.74 57.24 64.74 79.74

580 875 1725 16 2.546 32 5.093 2.000 5.86 7.39 8.91 10.42 11.93 13.44 14.95 16.45 17.96 19.46 20.96 22.46 23.97 25.47 26.97 28.97 31.47 33.98 36.48 38.98 43.98 48.98 56.49 63.99 78.99

580 875 1725 18 2.865 36 5.730 2.000 5.04 6.59 8.12 9.64 11.16 12.67 14.18 15.68 17.19 18.69 20.20 21.70 23.21 24.71 26.21 28.21 30.72 33.22 35.72 38.22 43.23 48.23 55.73 63.23 78.24

580 875 1725 20 3.183 40 6.366 2.000 5.78 7.33 8.86 10.38 11.89 13.41 14.92 16.42 17.93 19.44 20.94 22.44 23.95 25.45 27.45 29.96 32.46 34.96 37.47 42.47 47.47 54.98 62.48 77.48

580 875 1725 22 3.501 44 7.003 2.000 6.51 8.06 9.59 11.11 12.63 14.14 15.65 17.16 18.67 20.17 21.68 23.18 24.69 26.69 29.20 31.70 34.21 36.71 41.71 46.72 54.22 61.73 76.73

580 875 1725 24 3.820 48 7.639 2.000 7.25 8.79 10.32 11.85 13.36 14.88 16.39 17.90 19.41 20.91 22.42 23.92 25.93 28.44 30.94 33.45 35.95 40.96 45.96 53.47 60.97 75.98

580 875 1725 30 4.775 60 9.549 2.000 7.89 9.45 10.99 12.52 14.05 15.57 17.08 18.60 20.11 21.62 23.63 26.14 28.65 31.16 33.67 38.68 43.68 51.19 58.70 73.71

580 875 1725 36 5.730 72 11.459 2.000 10.09 11.65 13.19 14.72 16.25 17.77 19.29 21.31 23.83 26.34 28.86 31.37 36.39 41.40 48.92 56.43 71.44

580 875 1725 48 7.639 96 15.279 2.000 12.93 14.49 16.56 19.12 21.66 24.20 26.73 31.77 36.80 44.34 51.86 66.89

554 835 1647 21 3.342 44 7.003 2.095 6.62 8.17 9.70 11.23 12.74 14.26 15.77 17.28 18.79 20.29 21.80 23.30 24.81 26.81 29.32 31.82 34.33 36.83 41.84 46.84 54.34 61.85 76.85

552 833 1643 40 6.366 84 13.369 2.100 10.93 12.51 14.06 15.61 17.14 19.18 21.72 24.25 26.77 29.29 34.32 39.34 46.87 54.39 69.41

551 831 1639 19 3.024 40 6.366 2.105 5.89 7.44 8.97 10.49 12.01 13.52 15.03 16.54 18.05 19.55 21.06 22.56 24.07 25.57 27.57 30.08 32.58 35.09 37.59 42.59 47.60 55.10 62.60 77.61

541 817 1610 14 2.228 30 4.775 2.143 6.37 7.90 9.41 10.93 12.43 13.94 15.45 16.95 18.46 19.96 21.46 22.96 24.47 25.97 27.47 29.47 31.97 34.48 36.98 39.48 44.48 49.48 56.99 64.49 79.49

541 817 1610 28 4.456 60 9.549 2.143 8.10 9.66 11.21 12.75 14.27 15.79 17.31 18.83 20.34 21.85 23.86 26.38 28.89 31.40 33.90 38.92 43.93 51.44 58.95 73.96

532 802 1581 22 3.501 48 7.639 2.182 7.46 9.01 10.55 12.07 13.59 15.11 16.62 18.13 19.64 21.15 22.66 24.16 26.17 28.68 31.18 33.69 36.19 41.20 46.20 53.71 61.22 76.22

532 802 1581 44 7.003 96 15.279 2.182 11.76 13.35 14.92 16.99 19.56 22.11 24.65 27.18 32.23 37.27 44.81 52.34 67.37

527 795 1568 20 3.183 44 7.003 2.200 6.73 8.28 9.81 11.34 12.86 14.37 15.88 17.39 18.90 20.41 21.92 23.42 24.93 26.93 29.44 31.94 34.45 36.95 41.96 46.96 54.47 61.97 76.98

522 788 1553 18 2.865 40 6.366 2.222 5.99 7.55 9.08 10.61 12.12 13.64 15.15 16.66 18.17 19.67 21.18 22.68 24.19 25.69 27.69 30.20 32.70 35.21 37.71 42.71 47.72 55.22 62.73 77.73

516 778 1533 16 2.546 36 5.730 2.250 5.26 6.81 8.35 9.87 11.39 12.90 14.41 15.92 17.43 18.93 20.44 21.94 23.45 24.95 26.45 28.46 30.96 33.46 35.96 38.47 43.47 48.47 55.98 63.48 78.48

516 778 1533 32 5.093 72 11.459 2.250 8.93 10.51 12.08 13.63 15.16 16.70 18.22 19.74 21.77 24.29 26.81 29.33 31.84 36.86 41.88 49.40 56.91 71.93

508 766 1509 14 2.228 32 5.093 2.286 6.08 7.61 9.14 10.65 12.17 13.68 15.18 16.69 18.19 19.70 21.20 22.70 24.21 25.71 27.21 29.21 31.72 34.22 36.72 39.22 44.23 49.23 56.73 64.23 79.24

508 766 1509 21 3.342 48 7.639 2.286 5.99 7.57 9.12 10.66 12.19 13.71 15.22 16.74 18.25 19.76 21.27 22.77 24.28 26.29 28.80 31.30 33.81 36.31 41.32 46.33 53.83 61.34 76.35

503 758 1495 26 4.138 60 9.549 2.308 8.31 9.88 11.43 12.97 14.50 16.02 17.54 19.06 20.57 22.08 24.10 26.61 29.12 31.63 34.14 39.16 44.17 51.68 59.19 74.20

501 756 1490 19 3.024 44 7.003 2.316 6.83 8.39 9.92 11.45 12.97 14.49 16.00 17.51 19.02 20.53 22.03 23.54 25.05 27.05 29.56 32.06 34.57 37.07 42.08 47.08 54.59 62.09 77.10

497 750 1479 36 5.730 84 13.369 2.333 11.35 12.93 14.49 16.04 17.58 19.63 22.17 24.70 27.23 29.75 34.79 39.82 47.35 54.87 69.90

483 729 1438 20 3.183 48 7.639 2.400 6.09 7.67 9.23 10.77 12.30 13.82 15.34 16.85 18.37 19.88 21.38 22.89 24.40 26.41 28.91 31.42 33.93 36.43 41.44 46.45 53.95 61.46 76.47

483 729 1438 30 4.775 72 11.459 2.400 9.13 10.72 12.29 13.84 15.39 16.92 18.45 19.97 22.00 24.52 27.04 29.56 32.08 37.10 42.12 49.64 57.15 72.17

483 729 1438 40 6.366 96 15.279 2.400 12.17 13.77 15.35 17.43 20.00 22.56 25.10 27.64 32.70 37.74 45.28 52.81 67.85

475 716 1411 18 2.865 44 7.003 2.444 5.34 6.94 8.50 10.04 11.56 13.09 14.60 16.12 17.63 19.14 20.65 22.15 23.66 25.16 27.17 29.68 32.18 34.69 37.19 42.20 47.20 54.71 62.22 77.22

464 700 1380 16 2.546 40 6.366 2.500 6.20 7.76 9.30 10.83 12.35 13.87 15.38 16.89 18.40 19.91 21.42 22.92 24.43 25.93 27.94 30.44 32.95 35.45 37.95 42.96 47.96 55.47 62.97 77.98

464 700 1380 24 3.820 60 9.549 2.500 6.90 8.51 10.09 11.65 13.19 14.72 16.25 17.77 19.29 20.80 22.32 24.33 26.85 29.36 31.87 34.38 39.40 44.41 51.92 59.43 74.44

464 700 1380 48 7.639 120 19.099 2.500 15.42 18.08 20.70 23.29 28.42 33.51 41.10 48.66 63.74

459 693 1366 19 3.024 48 7.639 2.526 6.19 7.78 9.34 10.88 12.41 13.93 15.45 16.97 18.48 19.99 21.50 23.01 24.52 26.52 29.03 31.54 34.05 36.55 41.56 46.57 54.08 61.58 76.59

451 681 1342 14 2.228 36 5.730 2.571 5.47 7.03 8.57 10.10 11.62 13.13 14.65 16.15 17.66 19.17 20.68 22.18 23.69 25.19 26.69 28.70 31.20 33.70 36.21 38.71 43.71 48.72 56.22 63.73 78.73

451 681 1342 28 4.456 72 11.459 2.571 9.34 10.93 12.51 14.06 15.61 17.14 18.67 20.20 22.22 24.75 27.28 29.79 32.31 37.34 42.36 49.88 57.39 72.42

442 667 1314 32 5.093 84 13.369 2.625 10.14 11.76 13.35 14.92 16.48 18.02 20.07 22.62 25.16 27.69 30.22 35.26 40.29 47.82 55.35 70.38

435 656 1294 18 2.865 48 7.639 2.667 6.29 7.89 9.45 10.99 12.52 14.05 15.57 17.08 18.60 20.11 21.62 23.13 24.63 26.64 29.15 31.66 34.17 36.67 41.68 46.69 54.20 61.70 76.71

435 656 1294 36 5.730 96 15.279 2.667 10.94 12.58 14.19 15.77 17.86 20.44 23.00 25.55 28.09 33.16 38.20 45.75 53.29 68.33

425 642 1265 22 3.501 60 9.549 2.727 7.10 8.72 10.30 11.86 13.41 14.94 16.47 18.00 19.52 21.03 22.55 24.56 27.08 29.60 32.11 34.62 39.64 44.65 52.16 59.67 74.69

425 642 1265 44 7.003 120 19.099 2.727 15.83 18.50 21.13 23.72 28.86 33.96 41.56 49.13 64.21

422 636 1255 16 2.546 44 7.003 2.750 5.55 7.15 8.71 10.26 11.79 13.31 14.83 16.35 17.86 19.37 20.88 22.39 23.90 25.40 27.41 29.92 32.42 34.93 37.43 42.44 47.45 54.96 62.46 77.47

419 632 1246 26 4.138 72 11.459 2.769 9.54 11.14 12.72 14.28 15.82 17.36 18.89 20.42 22.45 24.98 27.51 30.03 32.54 37.57 42.59 50.12 57.63 72.66

414 625 1232 30 4.775 84 13.369 2.800 10.34 11.97 13.56 15.14 16.69 18.24 20.29 22.84 25.39 27.92 30.45 35.49 40.52 48.06 55.58 70.62

406 613 1208 14 2.228 40 6.366 2.857 4.80 6.41 7.98 9.52 11.06 12.58 14.10 15.61 17.13 18.64 20.14 21.65 23.16 24.66 26.17 28.17 30.68 33.19 35.69 38.19 43.20 48.21 55.71 63.22 78.22

406 613 1208 21 3.342 60 9.549 2.857 7.20 8.82 10.41 11.97 13.52 15.05 16.58 18.11 19.63 21.15 22.66 24.68 27.20 29.71 32.23 34.74 39.75 44.77 52.28 59.79 74.81

387 583 1150 16 2.546 48 7.639 3.000 6.49 8.10 9.66 11.21 12.75 14.27 15.79 17.31 18.83 20.34 21.85 23.36 24.87 26.88 29.39 31.90 34.41 36.91 41.92 46.93 54.44 61.95 76.96

387 583 1150 20 3.183 60 9.549 3.000 7.29 8.93 10.51 12.08 13.63 15.17 16.70 18.22 19.74 21.26 22.78 24.80 27.31 29.83 32.34 34.85 39.87 44.89 52.40 59.92 74.93

387 583 1150 24 3.820 72 11.459 3.000 8.08 9.74 11.35 12.93 14.49 16.04 17.58 19.12 20.65 22.68 25.21 27.74 30.26 32.78 37.81 42.83 50.35 57.87 72.90

387 583 1150 28 4.456 84 13.369 3.000 10.54 12.18 13.77 15.35 16.91 18.46 20.51 23.07 25.61 28.15 30.68 35.72 40.76 48.29 55.82 70.86

387 583 1150 32 5.093 96 15.279 3.000 11.34 12.99 14.60 16.19 18.29 20.88 23.44 26.00 28.54 33.61 38.66 46.22 53.76 68.81

387 583 1150 40 6.366 120 19.099 3.000 13.46 16.23 18.92 21.55 24.16 29.31 34.41 42.02 49.59 64.69

369 557 1098 14 2.228 44 7.003 3.143 5.75 7.36 8.93 10.48 12.01 13.54 15.06 16.58 18.09 19.60 21.11 22.62 24.13 25.64 27.65 30.16 32.66 35.17 37.67 42.68 47.69 55.20 62.70 77.71

367 554 1093 19 3.024 60 9.549 3.158 7.39 9.03 10.62 12.19 13.74 15.28 16.81 18.33 19.86 21.38 22.89 24.91 27.43 29.95 32.46 34.97 39.99 45.01 52.52 60.04 75.05

363 547 1078 30 4.775 96 15.279 3.200 11.53 13.19 14.81 16.40 18.50 21.09 23.66 26.22 28.77 33.84 38.89 46.45 53.99 69.05

359 542 1068 26 4.138 84 13.369 3.231 9.04 10.74 12.38 13.98 15.56 17.12 18.68 20.73 23.29 25.84 28.37 30.90 35.95 40.99 48.53 56.06 71.10

Key to Horsepower Correction Factor =1.0 =0.8 =0.6

Page 74 The Gates Rubber Company

H, 0.500²Pitch Belts Drive Selection Table

DriveN Speed Sprocket Combinations Center Distance, Inches

For motor speed of DriveR DriveN

240H

P.L. 24.00

48 Teeth

270H

P.L. 27.00

54 Teeth

300H

P.L. 30.00

60 Teeth

330H

P.L. 33.00

66 Teeth

360H

P.L. 36.00

72 Teeth

390H

P.L. 39.00

78 Teeth

420H

P.L. 42.00

84 Teeth

450H

P.L. 45.00

90 Teeth

480H

P.L. 48.00

96 Teeth

510H

P.L. 51.00

102 Teeth

540H

P.L. 54.00

108 Teeth

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

1160

RPM 1750

RPM 3450

RPM No. of

grooves

Pitch

diam.

inches No. of

grooves

Pitch

diam.

inches Speed

Ratio

357 538 1062 48 7.639 156 24.828 3.250 17.32 22.87 28.18 35.97 43.65 58.87

354 535 1054 22 3.501 72 11.459 3.273 8.27 9.94 11.56 13.14 14.71 16.26 17.80 19.34 20.87 22.90 25.44 27.97 30.49 33.01 38.04 43.07 50.59 58.11 73.14

348 525 1035 18 2.865 60 9.549 3.333 7.49 9.13 10.73 12.29 13.84 15.39 16.92 18.45 19.97 21.49 23.01 25.03 27.55 30.06 32.58 35.09 40.11 45.13 52.64 60.16 75.18

348 525 1035 36 5.730 120 19.099 3.333 13.85 16.64 19.33 21.97 24.58 29.75 34.86 42.47 50.05 65.16

338 510 1006 14 2.228 48 7.639 3.429 6.70 8.31 9.88 11.43 12.97 14.50 16.02 17.54 19.06 20.57 22.08 23.60 25.10 27.12 29.63 32.14 34.64 37.15 42.16 47.17 54.68 62.19 77.20

338 510 1006 21 3.342 72 11.459 3.429 8.37 10.04 11.66 13.25 14.82 16.37 17.91 19.45 20.98 23.02 25.55 28.08 30.61 33.13 38.16 43.18 50.71 58.23 73.26

338 510 1006 28 4.456 96 15.279 3.429 11.73 13.39 15.01 16.61 18.71 21.31 23.88 26.44 28.99 34.07 39.13 46.69 54.23 69.29

331 500 986 24 3.820 84 13.369 3.500 9.24 10.94 12.58 14.19 15.77 17.34 18.89 20.95 23.51 26.06 28.60 31.13 36.18 41.22 48.77 56.30 71.34

327 494 973 44 7.003 156 24.828 3.545 17.71 23.27 28.60 36.40 44.10 59.33

322 486 958 20 3.183 72 11.459 3.600 8.47 10.14 11.76 13.35 14.92 16.48 18.02 19.56 21.09 23.13 25.67 28.20 30.72 33.24 38.28 43.30 50.83 58.35 73.38

314 474 934 26 4.138 96 15.279 3.692 10.18 11.92 13.59 15.22 16.82 18.92 21.53 24.10 26.67 29.22 34.30 39.36 46.92 54.46 69.53

309 467 920 16 2.546 60 9.549 3.750 7.69 9.34 10.94 12.51 14.06 15.61 17.14 18.67 20.20 21.72 23.24 25.26 27.78 30.30 32.81 35.33 40.35 45.37 52.88 60.40 75.42

309 467 920 32 5.093 120 19.099 3.750 14.24 17.04 19.74 22.40 25.01 30.18 35.30 42.93 50.51 65.63

306 462 910 19 3.024 72 11.459 3.789 8.56 10.24 11.87 13.46 15.03 16.59 18.13 19.67 21.20 23.24 25.78 28.31 30.84 33.36 38.39 43.42 50.95 58.47 73.50

304 458 904 22 3.501 84 13.369 3.818 9.43 11.14 12.79 14.40 15.98 17.55 19.11 21.17 23.74 26.29 28.83 31.36 36.42 41.46 49.00 56.53 71.58

297 449 885 40 6.366 156 24.828 3.900 18.09 23.68 29.02 36.84 44.54 59.79

290 438 863 18 2.865 72 11.459 4.000 8.66 10.34 11.97 13.56 15.14 16.69 18.24 19.78 21.32 23.35 25.89 28.42 30.95 33.47 38.51 43.54 51.07 58.59 73.62

290 438 863 21 3.342 84 13.369 4.000 9.52 11.24 12.89 14.50 16.09 17.66 19.22 21.28 23.85 26.40 28.94 31.48 36.53 41.57 49.12 56.65 71.70

290 438 863 24 3.820 96 15.279 4.000 10.37 12.12 13.79 15.42 17.03 19.14 21.74 24.32 26.89 29.44 34.52 39.58 47.15 54.70 69.76

290 438 863 30 4.775 120 19.099 4.000 14.43 17.24 19.95 22.61 25.23 30.40 35.52 43.15 50.74 65.86

276 417 821 20 3.183 84 13.369 4.200 9.62 11.34 12.99 14.60 16.19 17.76 19.33 21.39 23.96 26.51 29.05 31.59 36.65 41.69 49.24 56.77 71.82

271 408 805 14 2.228 60 9.549 4.286 6.12 7.88 9.54 11.14 12.72 14.28 15.83 17.36 18.89 20.42 21.94 23.46 25.49 28.01 30.53 33.05 35.56 40.59 45.60 53.12 60.64 75.66

271 408 805 28 4.456 120 19.099 4.286 12.24 14.63 17.44 20.15 22.81 25.44 30.62 35.75 43.38 50.97 66.09

268 404 796 36 5.730 156 24.828 4.333 18.47 24.08 29.44 37.27 44.98 60.24

266 401 791 22 3.501 96 15.279 4.364 10.56 12.31 13.99 15.63 17.23 19.35 21.96 24.54 27.11 29.66 34.75 39.81 47.38 54.93 70.00

262 396 780 19 3.024 84 13.369 4.421 9.71 11.43 13.09 14.71 16.30 17.87 19.43 21.50 24.07 26.62 29.17 31.70 36.76 41.80 49.35 56.89 71.94

258 389 767 16 2.546 72 11.459 4.500 8.85 10.54 12.18 13.77 15.35 16.91 18.46 20.00 21.54 23.58 26.12 28.65 31.18 33.71 38.74 43.77 51.31 58.83 73.87

254 383 755 21 3.342 96 15.279 4.571 10.65 12.41 14.09 15.73 17.34 19.45 22.06 24.65 27.22 29.77 34.86 39.93 47.50 55.05 70.12

251 379 748 26 4.138 120 19.099 4.615 12.42 14.82 17.64 20.36 23.02 25.65 30.84 35.97 43.61 51.20 66.33

249 375 739 18 2.865 84 13.369 4.667 9.81 11.53 13.19 14.81 16.40 17.98 19.54 21.61 24.18 26.73 29.28 31.82 36.88 41.92 49.47 57.01 72.06

242 365 719 20 3.183 96 15.279 4.800 10.75 12.51 14.19 15.83 17.44 19.56 22.17 24.76 27.33 29.89 34.98 40.04 47.62 55.17 70.24

238 359 708 32 5.093 156 24.828 4.875 15.81 18.85 24.48 29.85 37.70 45.42 60.70

232 350 690 24 3.820 120 19.099 5.000 12.60 15.01 17.84 20.56 23.23 25.86 31.05 36.19 43.83 51.43 66.56

230 346 683 19 3.024 96 15.279 5.053 10.84 12.60 14.29 15.93 17.54 19.66 22.28 24.87 27.44 30.00 35.09 40.16 47.73 55.28 70.36

226 340 671 14 2.228 72 11.459 5.143 7.22 9.04 10.74 12.38 13.98 15.56 17.12 18.68 20.22 21.76 23.80 26.34 28.88 31.41 33.94 38.98 44.01 51.54 59.07 74.11

223 337 663 30 4.775 156 24.828 5.200 15.99 19.04 24.68 30.06 37.92 45.64 60.92

221 333 657 16 2.546 84 13.369 5.250 10.00 11.73 13.39 15.01 16.61 18.19 19.75 21.83 24.40 26.96 29.50 32.04 37.11 42.15 49.71 57.24 72.30

218 328 647 18 2.865 96 15.279 5.333 10.94 12.70 14.39 16.03 17.65 19.77 22.38 24.97 27.55 30.11 35.20 40.27 47.85 55.40 70.48

213 321 633 22 3.501 120 19.099 5.455 12.79 15.20 18.04 20.77 23.44 26.07 31.27 36.41 44.06 51.66 66.79

208 314 619 28 4.456 156 24.828 5.571 16.17 19.23 24.89 30.27 38.13 45.86 61.15

203 306 604 21 3.342 120 19.099 5.714 12.88 15.30 18.13 20.87 23.54 26.18 31.38 36.52 44.17 51.77 66.91

193 292 575 14 2.228 84 13.369 6.000 8.30 10.18 11.92 13.59 15.22 16.82 18.40 19.97 22.04 24.62 27.18 29.73 32.27 37.33 42.38 49.94 57.48 72.54

193 292 575 16 2.546 96 15.279 6.000 9.19 11.12 12.89 14.59 16.24 17.85 19.98 22.60 25.19 27.77 30.33 35.43 40.50 48.08 55.64 70.71

193 292 575 20 3.183 120 19.099 6.000 12.97 15.39 18.23 20.97 23.65 26.29 31.49 36.63 44.28 51.89 67.03

193 292 575 26 4.138 156 24.828 6.000 16.35 19.42 25.09 30.48 38.35 46.08 61.38

184 277 546 19 3.024 120 19.099 6.316 13.06 15.49 18.33 21.07 23.75 26.39 31.60 36.74 44.40 52.00 67.14

178 269 531 24 3.820 156 24.828 6.500 16.53 19.61 25.28 30.68 38.56 46.30 61.60

174 263 518 18 2.865 120 19.099 6.667 13.15 15.58 18.43 21.17 23.85 26.50 31.70 36.85 44.51 52.12 67.26

169 255 503 14 2.228 96 15.279 6.857 9.37 11.31 13.09 14.79 16.44 18.06 20.19 22.81 25.41 27.99 30.55 35.65 40.73 48.31 55.87 70.95

164 247 487 22 3.501 156 24.828 7.091 16.72 19.80 25.49 30.89 38.77 46.52 61.83

156 236 464 21 3.342 156 24.828 7.429 16.81 19.90 25.58 30.99 38.88 46.63 61.94

155 233 460 16 2.546 120 19.099 7.500 11.31 13.34 15.77 18.63 21.38 24.06 26.71 31.92 37.07 44.73 52.34 67.49

149 224 442 20 3.183 156 24.828 7.800 16.90 19.99 25.68 31.10 38.99 46.74 62.05

141 213 420 19 3.024 156 24.828 8.211 16.99 20.09 25.78 31.20 39.09 46.85 62.17

135 204 403 14 2.228 120 19.099 8.571 11.48 13.52 15.96 18.83 21.58 24.27 26.92 32.14 37.29 44.96 52.57 67.72

134 202 398 18 2.865 156 24.828 8.667 17.08 20.18 25.88 31.30 39.20 46.96 62.28

119 179 354 16 2.546 156 24.828 9.750 17.26 20.37 26.08 31.51 39.42 47.18 62.50

104 157 310 14 2.228 156 24.828 11.143 13.78 17.44 20.56 26.28 31.72 39.63 47.40 62.73

Key to Horsepower Correction Factor =1.0 =0.8 =0.6 =0.4

The Driving Force in Power Transmission. Page 75

Horsepower Rating for 0.25 Inch Wide

XL Section Belt (0.200 Inch Pitch)

RPM

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 0.034 0.038 0.041 0.048 0.051 0.055 0.062 0.069 0.072 0.075 0.082 0.096 0.10

1160 0.042 0.046 0.050 0.059 0.063 0.067 0.075 0.084 0.088 0.092 0.10 0.12 0.13

1425 0.051 0.057 0.062 0.072 0.077 0.082 0.093 0.10 0.11 0.11 0.12 0.14 0.15

1750 0.063 0.069 0.076 0.088 0.095 0.10 0.11 0.13 0.13 0.14 0.15 0.18 0.19

2850 0.10 0.11 0.12 0.14 0.15 0.16 0.18 0.20 0.21 0.22 0.24 0.28 0.30

3450 0.12 0.14 0.15 0.17 0.19 0.20 0.22 0.25 0.26 0.27 0.29 0.34 0.36

100 0.004 0.004 0.004 0.005 0.005 0.006 0.007 0.007 0.008 0.008 0.009 0.010 0.011

200 0.007 0.008 0.009 0.010 0.011 0.012 0.013 0.014 0.015 0.016 0.017 0.020 0.022

300 0.011 0.012 0.013 0.015 0.016 0.017 0.020 0.022 0.023 0.024 0.026 0.030 0.033

400 0.014 0.016 0.017 0.020 0.022 0.023 0.026 0.029 0.030 0.032 0.035 0.040 0.043

500 0.018 0.020 0.022 0.025 0.027 0.029 0.033 0.036 0.038 0.040 0.043 0.051 0.054

600 0.022 0.024 0.026 0.030 0.033 0.035 0.039 0.043 0.046 0.048 0.052 0.061 0.065

700 0.025 0.028 0.030 0.035 0.038 0.040 0.046 0.051 0.053 0.056 0.061 0.071 0.076

800 0.029 0.032 0.035 0.040 0.043 0.046 0.052 0.058 0.061 0.064 0.069 0.081 0.087

900 0.033 0.036 0.039 0.046 0.049 0.052 0.059 0.065 0.068 0.072 0.078 0.091 0.097

1000 0.036 0.040 0.043 0.051 0.054 0.058 0.065 0.072 0.076 0.079 0.087 0.10 0.11

1100 0.040 0.044 0.048 0.056 0.060 0.064 0.072 0.079 0.083 0.087 0.095 0.11 0.12

1200 0.043 0.048 0.052 0.061 0.065 0.069 0.078 0.087 0.091 0.095 0.10 0.12 0.13

1300 0.047 0.052 0.056 0.066 0.070 0.075 0.084 0.094 0.098 0.10 0.11 0.13 0.14

1400 0.051 0.056 0.061 0.071 0.076 0.081 0.091 0.10 0.11 0.11 0.12 0.14 0.15

1500 0.054 0.060 0.065 0.076 0.081 0.087 0.097 0.11 0.11 0.12 0.13 0.15 0.16

1600 0.058 0.064 0.069 0.081 0.087 0.092 0.10 0.12 0.12 0.13 0.14 0.16 0.17

1700 0.061 0.068 0.074 0.086 0.092 0.098 0.11 0.12 0.13 0.13 0.15 0.17 0.18

1800 0.065 0.071 0.078 0.091 0.097 0.10 0.12 0.13 0.14 0.14 0.16 0.18 0.19

2000 0.072 0.079 0.087 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.20 0.21

2200 0.079 0.087 0.095 0.11 0.12 0.13 0.14 0.16 0.17 0.17 0.19 0.22 0.24

2400 0.087 0.095 0.10 0.12 0.13 0.14 0.16 0.17 0.18 0.19 0.21 0.24 0.26

2600 0.094 0.10 0.11 0.13 0.14 0.15 0.17 0.19 0.20 0.20 0.22 0.26 0.28

2800 0.10 0.11 0.12 0.14 0.15 0.16 0.18 0.20 0.21 0.22 0.24 0.28 0.30

3000 0.11 0.12 0.13 0.15 0.16 0.17 0.19 0.21 0.22 0.24 0.26 0.30 0.32

3200 0.12 0.13 0.14 0.16 0.17 0.18 0.21 0.23 0.24 0.25 0.27 0.32 0.34

3400 0.12 0.13 0.15 0.17 0.18 0.19 0.22 0.24 0.25 0.27 0.29 0.33 0.36

3600 0.13 0.14 0.16 0.18 0.19 0.21 0.23 0.26 0.27 0.28 0.31 0.35 0.38

3800 0.14 0.15 0.16 0.19 0.20 0.22 0.24 0.27 0.28 0.30 0.32 0.37 0.40

4000 0.14 0.16 0.17 0.20 0.21 0.23 0.26 0.28 0.30 0.31 0.34 0.39 0.41

4200 0.15 0.17 0.18 0.21 0.22 0.24 0.27 0.30 0.31 0.33 0.35 0.41 0.43

4400 0.16 0.17 0.19 0.22 0.24 0.25 0.28 0.31 0.33 0.34 0.37 0.42 0.45

4600 0.17 0.18 0.20 0.23 0.25 0.26 0.29 0.32 0.34 0.35 0.38 0.44 0.47

4800 0.17 0.19 0.21 0.24 0.26 0.27 0.31 0.34 0.35 0.37 0.40 0.46 0.49

5000 0.18 0.20 0.21 0.25 0.27 0.28 0.32 0.35 0.37 0.38 0.41 0.48 0.50

5500 0.29 0.31 0.35 0.38 0.40 0.42 0.45 0.52 0.55

6000 0.32 0.34 0.38 0.41 0.43 0.45 0.49 0.55 0.58

6500 0.34 0.36 0.40 0.45 0.46 0.48 0.52 0.59 0.62

7000 0.37 0.39 0.43 0.48 0.50 0.52 0.55 0.62 0.65

7500 0.39 0.41 0.46 0.50 0.53 0.55 0.58 0.65 0.68

8000 0.49 0.53 0.55 0.57 0.61 0.68 0.71

8500 0.51 0.56 0.58 0.60 0.64 0.71 0.73

9000 0.54 0.58 0.61 0.63 0.67 0.73 0.75

9500 0.56 0.61 0.63 0.65 0.69 0.75 0.77

10000 0.58 0.63 0.65 0.68 0.71 0.76 0.78

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 The Gates Rubber Company

Horsepower Rating for 0.375 Inch Wide

XL Section Belt (0.200 Inch Pitch)

RPM

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 0.055 0.061 0.066 0.077 0.083 0.089 0.100 0.11 0.12 0.12 0.13 0.15 0.17

1160 0.068 0.074 0.081 0.095 0.10 0.11 0.12 0.14 0.14 0.15 0.16 0.19 0.20

1425 0.083 0.091 0.100 0.12 0.12 0.13 0.15 0.17 0.17 0.18 0.20 0.23 0.25

1750 0.10 0.11 0.12 0.14 0.15 0.16 0.18 0.20 0.21 0.22 0.24 0.28 0.30

2850 0.17 0.18 0.20 0.23 0.25 0.26 0.30 0.33 0.35 0.36 0.39 0.46 0.49

3450 0.20 0.22 0.24 0.28 0.30 0.32 0.36 0.40 0.42 0.43 0.47 0.55 0.58

100 0.006 0.006 0.007 0.008 0.009 0.009 0.010 0.012 0.012 0.013 0.014 0.016 0.017

200 0.012 0.013 0.014 0.016 0.017 0.019 0.021 0.023 0.024 0.026 0.028 0.033 0.035

300 0.017 0.019 0.021 0.024 0.026 0.028 0.031 0.035 0.037 0.038 0.042 0.049 0.052

400 0.023 0.026 0.028 0.033 0.035 0.037 0.042 0.047 0.049 0.051 0.056 0.065 0.070

500 0.029 0.032 0.035 0.041 0.044 0.047 0.052 0.058 0.061 0.064 0.070 0.082 0.087

600 0.035 0.038 0.042 0.049 0.052 0.056 0.063 0.070 0.073 0.077 0.084 0.098 0.10

700 0.041 0.045 0.049 0.057 0.061 0.065 0.073 0.082 0.086 0.090 0.098 0.11 0.12

800 0.047 0.051 0.056 0.065 0.070 0.075 0.084 0.093 0.098 0.10 0.11 0.13 0.14

900 0.052 0.058 0.063 0.073 0.079 0.084 0.094 0.10 0.11 0.12 0.13 0.15 0.16

1000 0.058 0.064 0.070 0.082 0.087 0.093 0.10 0.12 0.12 0.13 0.14 0.16 0.17

1100 0.064 0.070 0.077 0.090 0.096 0.10 0.12 0.13 0.13 0.14 0.15 0.18 0.19

1200 0.070 0.077 0.084 0.098 0.10 0.11 0.13 0.14 0.15 0.15 0.17 0.20 0.21

1300 0.076 0.083 0.091 0.11 0.11 0.12 0.14 0.15 0.16 0.17 0.18 0.21 0.23

1400 0.082 0.090 0.098 0.11 0.12 0.13 0.15 0.16 0.17 0.18 0.20 0.23 0.24

1500 0.087 0.096 0.10 0.12 0.13 0.14 0.16 0.17 0.18 0.19 0.21 0.24 0.26

1600 0.093 0.10 0.11 0.13 0.14 0.15 0.17 0.19 0.20 0.20 0.22 0.26 0.28

1700 0.099 0.11 0.12 0.14 0.15 0.16 0.18 0.20 0.21 0.22 0.24 0.28 0.30

1800 0.10 0.12 0.13 0.15 0.16 0.17 0.19 0.21 0.22 0.23 0.25 0.29 0.31

2000 0.12 0.13 0.14 0.16 0.17 0.19 0.21 0.23 0.24 0.26 0.28 0.32 0.35

2200 0.13 0.14 0.15 0.18 0.19 0.20 0.23 0.25 0.27 0.28 0.31 0.36 0.38

2400 0.14 0.15 0.17 0.20 0.21 0.22 0.25 0.28 0.29 0.31 0.33 0.39 0.41

2600 0.15 0.17 0.18 0.21 0.23 0.24 0.27 0.30 0.32 0.33 0.36 0.42 0.45

2800 0.16 0.18 0.20 0.23 0.24 0.26 0.29 0.32 0.34 0.36 0.39 0.45 0.48

3000 0.17 0.19 0.21 0.24 0.26 0.28 0.31 0.35 0.36 0.38 0.41 0.48 0.51

3200 0.19 0.20 0.22 0.26 0.28 0.30 0.33 0.37 0.39 0.40 0.44 0.51 0.54

3400 0.20 0.22 0.24 0.28 0.30 0.31 0.35 0.39 0.41 0.43 0.47 0.54 0.58

3600 0.21 0.23 0.25 0.29 0.31 0.33 0.37 0.41 0.43 0.45 0.49 0.57 0.61

3800 0.22 0.24 0.26 0.31 0.33 0.35 0.39 0.44 0.46 0.48 0.52 0.60 0.64

4000 0.23 0.25 0.28 0.32 0.35 0.37 0.41 0.46 0.48 0.50 0.54 0.63 0.67

4200 0.24 0.27 0.29 0.34 0.36 0.39 0.43 0.48 0.50 0.52 0.57 0.66 0.70

4400 0.26 0.28 0.31 0.35 0.38 0.40 0.45 0.50 0.52 0.55 0.59 0.68 0.73

4600 0.27 0.29 0.32 0.37 0.40 0.42 0.47 0.52 0.55 0.57 0.62 0.71 0.76

4800 0.28 0.31 0.33 0.39 0.41 0.44 0.49 0.54 0.57 0.59 0.64 0.74 0.79

5000 0.29 0.32 0.35 0.40 0.43 0.46 0.51 0.56 0.59 0.62 0.67 0.77 0.81

5500 0.47 0.50 0.56 0.62 0.65 0.67 0.73 0.83 0.88

6000 0.51 0.54 0.61 0.67 0.70 0.73 0.79 0.89 0.94

6500 0.55 0.59 0.65 0.72 0.75 0.78 0.84 0.95 1.00

7000 0.59 0.63 0.70 0.77 0.80 0.83 0.89 1.01 1.06

7500 0.63 0.67 0.74 0.81 0.85 0.88 0.94 1.06 1.10

8000 0.79 0.86 0.89 0.93 0.99 1.10 1.15

8500 0.83 0.90 0.94 0.97 1.03 1.14 1.18

9000 0.87 0.94 0.98 1.01 1.08 1.18 1.22

9500 0.91 0.98 1.02 1.05 1.11 1.21 1.24

10000 0.94 1.02 1.06 1.09 1.15 1.23 1.26

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.

The Driving Force in Power Transmission. Page 77

Horsepower Rating for 0.50 Inch Wide

L Section Belt (0.375 Inch Pitch)

RPM

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 0.17 0.20 0.24 0.27 0.31 0.32 0.34 0.36 0.37 0.41 0.44 0.47 0.51 0.54 0.61 0.67 0.74 0.81

870 0.20 0.24 0.28 0.33 0.37 0.39 0.41 0.43 0.45 0.49 0.53 0.57 0.61 0.65 0.73 0.81 0.88 0.96

950 0.22 0.27 0.31 0.36 0.40 0.42 0.44 0.47 0.49 0.53 0.57 0.62 0.66 0.71 0.79 0.88 0.96 1.05

1160 0.27 0.33 0.38 0.43 0.49 0.51 0.54 0.57 0.59 0.65 0.70 0.75 0.81 0.86 0.96 1.06 1.16 1.26

1425 0.33 0.40 0.47 0.53 0.60 0.63 0.66 0.69 0.73 0.79 0.86 0.92 0.98 1.05 1.17 1.29 1.41 1.53

1750 0.41 0.49 0.57 0.65 0.73 0.77 0.81 0.85 0.89 0.97 1.04 1.12 1.20 1.27 1.42 1.56 1.70 1.83

2850 0.79 0.92 1.05 1.17 1.23 1.29 1.35 1.41 1.53 1.64 1.75 1.86 1.96 2.15 2.33 2.48 2.61

3450 1.11 1.25 1.40 1.47 1.54 1.61 1.68 1.81 1.93 2.05 2.17 2.28 2.47 2.63 2.75 2.83

100 0.023 0.028 0.033 0.037 0.042 0.044 0.047 0.049 0.052 0.056 0.061 0.066 0.070 0.075 0.084 0.094 0.10 0.11

200 0.047 0.056 0.066 0.075 0.084 0.089 0.094 0.098 0.10 0.11 0.12 0.13 0.14 0.15 0.17 0.19 0.21 0.22

300 0.070 0.084 0.098 0.11 0.13 0.13 0.14 0.15 0.15 0.17 0.18 0.20 0.21 0.22 0.25 0.28 0.31 0.34

400 0.094 0.11 0.13 0.15 0.17 0.18 0.19 0.20 0.21 0.22 0.24 0.26 0.28 0.30 0.34 0.37 0.41 0.45

500 0.12 0.14 0.16 0.19 0.21 0.22 0.23 0.25 0.26 0.28 0.30 0.33 0.35 0.37 0.42 0.47 0.51 0.56

600 0.14 0.17 0.20 0.22 0.25 0.27 0.28 0.29 0.31 0.34 0.36 0.39 0.42 0.45 0.50 0.56 0.61 0.67

700 0.16 0.20 0.23 0.26 0.29 0.31 0.33 0.34 0.36 0.39 0.42 0.46 0.49 0.52 0.59 0.65 0.71 0.78

800 0.19 0.22 0.26 0.30 0.34 0.36 0.37 0.39 0.41 0.45 0.49 0.52 0.56 0.60 0.67 0.74 0.81 0.89

900 0.21 0.25 0.29 0.34 0.38 0.40 0.42 0.44 0.46 0.50 0.55 0.59 0.63 0.67 0.75 0.83 0.91 0.99

1000 0.23 0.28 0.33 0.37 0.42 0.44 0.47 0.49 0.51 0.56 0.60 0.65 0.70 0.74 0.83 0.92 1.01 1.10

1100 0.26 0.31 0.36 0.41 0.46 0.49 0.51 0.54 0.56 0.61 0.66 0.71 0.76 0.81 0.91 1.01 1.11 1.20

1200 0.28 0.34 0.39 0.45 0.50 0.53 0.56 0.59 0.61 0.67 0.72 0.78 0.83 0.89 0.99 1.10 1.20 1.30

1300 0.30 0.36 0.42 0.49 0.55 0.57 0.60 0.63 0.66 0.72 0.78 0.84 0.90 0.96 1.07 1.19 1.30 1.41

1400 0.33 0.39 0.46 0.52 0.59 0.62 0.65 0.68 0.71 0.78 0.84 0.90 0.97 1.03 1.15 1.27 1.39 1.50

1500 0.35 0.42 0.49 0.56 0.63 0.66 0.70 0.73 0.76 0.83 0.90 0.97 1.03 1.10 1.23 1.36 1.48 1.60

1600 0.37 0.45 0.52 0.60 0.67 0.71 0.74 0.78 0.81 0.89 0.96 1.03 1.10 1.17 1.30 1.44 1.57 1.69

1700 0.40 0.48 0.55 0.63 0.71 0.75 0.79 0.83 0.86 0.94 1.02 1.09 1.16 1.24 1.38 1.52 1.66 1.79

1800 0.50 0.59 0.67 0.75 0.79 0.83 0.87 0.91 0.99 1.07 1.15 1.23 1.30 1.45 1.60 1.74 1.87

1900 0.53 0.62 0.71 0.79 0.83 0.88 0.92 0.96 1.05 1.13 1.21 1.29 1.37 1.53 1.68 1.82 1.96

2000 0.56 0.65 0.74 0.83 0.88 0.92 0.97 1.01 1.10 1.19 1.27 1.36 1.44 1.60 1.76 1.90 2.04

2200 0.61 0.71 0.81 0.91 0.96 1.01 1.06 1.11 1.20 1.30 1.39 1.48 1.57 1.74 1.90 2.06 2.20

2400 0.67 0.78 0.89 0.99 1.05 1.10 1.15 1.20 1.30 1.41 1.50 1.60 1.69 1.87 2.04 2.20 2.35

2600 0.72 0.84 0.96 1.07 1.13 1.19 1.24 1.30 1.41 1.51 1.62 1.72 1.82 2.00 2.18 2.33 2.47

2800 0.78 0.90 1.03 1.15 1.21 1.27 1.33 1.39 1.50 1.62 1.73 1.83 1.93 2.12 2.30 2.45 2.59

3000 0.83 0.97 1.10 1.23 1.29 1.36 1.42 1.48 1.60 1.72 1.83 1.94 2.04 2.24 2.41 2.56 2.68

3200 1.03 1.17 1.30 1.37 1.44 1.50 1.57 1.69 1.82 1.93 2.04 2.15 2.35 2.51 2.65 2.76

3400 1.09 1.24 1.38 1.45 1.52 1.59 1.66 1.79 1.91 2.03 2.14 2.25 2.44 2.61 2.73 2.82

3600 1.15 1.30 1.45 1.53 1.60 1.67 1.74 1.87 2.00 2.12 2.24 2.35 2.53 2.68 2.79 2.86

3800 1.21 1.37 1.53 1.60 1.68 1.75 1.82 1.96 2.09 2.21 2.33 2.43 2.61 2.75 2.84 2.87

4000 1.27 1.44 1.60 1.68 1.76 1.83 1.90 2.04 2.18 2.30 2.41 2.51 2.68 2.80 2.87 2.87

4200 1.50 1.67 1.75 1.83 1.91 1.98 2.12 2.26 2.38 2.49 2.59 2.74 2.84 2.87 2.83

4400 1.57 1.74 1.82 1.90 1.98 2.06 2.20 2.33 2.45 2.56 2.65 2.79 2.87 2.86 2.78

4600 1.63 1.81 1.89 1.98 2.05 2.13 2.28 2.41 2.52 2.63 2.71 2.83 2.87 2.83 2.69

4800 1.69 1.87 1.96 2.04 2.12 2.20 2.35 2.47 2.59 2.68 2.76 2.86 2.87 2.78 2.58

5000 1.76 1.94 2.03 2.11 2.19 2.27 2.41 2.54 2.65 2.74 2.80 2.87 2.84 2.70 2.44

5200 1.82 2.00 2.09 2.18 2.26 2.33 2.47 2.60 2.70 2.78 2.84 2.87 2.80 2.60 2.26

5400 1.87 2.06 2.15 2.24 2.32 2.40 2.53 2.65 2.74 2.81 2.86 2.86 2.74 2.47 2.06

5600 1.93 2.12 2.21 2.30 2.38 2.45 2.59 2.70 2.78 2.84 2.87 2.83 2.66 2.32 1.82

5800 1.99 2.18 2.27 2.36 2.44 2.51 2.64 2.74 2.82 2.86 2.87 2.79 2.56 2.15 1.55

6000 2.04 2.24 2.33 2.41 2.49 2.56 2.68 2.78 2.84 2.87 2.87 2.74 2.44 1.94 1.24

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 The Gates Rubber Company

Horsepower Rating for 0.75 Inch Wide

L Section Belt (0.375 Inch Pitch)

RPM

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 0.27 0.33 0.38 0.43 0.49 0.52 0.54 0.57 0.60 0.65 0.70 0.76 0.81 0.86 0.97 1.08 1.18 1.29

870 0.33 0.39 0.46 0.52 0.59 0.62 0.65 0.68 0.71 0.78 0.84 0.91 0.97 1.04 1.16 1.29 1.41 1.54

950 0.36 0.43 0.50 0.57 0.64 0.67 0.71 0.74 0.78 0.85 0.92 0.99 1.06 1.13 1.27 1.40 1.54 1.67

1160 0.43 0.52 0.61 0.69 0.78 0.82 0.86 0.91 0.95 1.04 1.12 1.20 1.29 1.37 1.54 1.70 1.86 2.02

1425 0.53 0.64 0.74 0.85 0.95 1.01 1.06 1.11 1.16 1.27 1.37 1.47 1.57 1.67 1.87 2.07 2.26 2.45

1750 0.65 0.78 0.91 1.04 1.17 1.23 1.30 1.36 1.42 1.55 1.67 1.79 1.91 2.03 2.27 2.50 2.72 2.93

2850 1.27 1.47 1.67 1.87 1.97 2.07 2.16 2.26 2.45 2.63 2.80 2.97 3.14 3.45 3.73 3.97 4.18

3450 1.77 2.01 2.24 2.35 2.46 2.57 2.68 2.89 3.10 3.29 3.47 3.64 3.95 4.20 4.40 4.53

100 0.037 0.045 0.052 0.060 0.067 0.071 0.075 0.079 0.082 0.090 0.097 0.10 0.11 0.12 0.13 0.15 0.16 0.18

200 0.075 0.090 0.10 0.12 0.13 0.14 0.15 0.16 0.16 0.18 0.19 0.21 0.22 0.24 0.27 0.30 0.33 0.36

300 0.11 0.13 0.16 0.18 0.20 0.21 0.22 0.24 0.25 0.27 0.29 0.31 0.34 0.36 0.40 0.45 0.49 0.54

400 0.15 0.18 0.21 0.24 0.27 0.28 0.30 0.31 0.33 0.36 0.39 0.42 0.45 0.48 0.54 0.60 0.66 0.72

500 0.19 0.22 0.26 0.30 0.34 0.36 0.37 0.39 0.41 0.45 0.49 0.52 0.56 0.60 0.67 0.75 0.82 0.89

600 0.22 0.27 0.31 0.36 0.40 0.43 0.45 0.47 0.49 0.54 0.58 0.63 0.67 0.72 0.81 0.89 0.98 1.07

700 0.26 0.31 0.37 0.42 0.47 0.50 0.52 0.55 0.58 0.63 0.68 0.73 0.78 0.84 0.94 1.04 1.14 1.25

800 0.30 0.36 0.42 0.48 0.54 0.57 0.60 0.63 0.66 0.72 0.78 0.84 0.89 0.95 1.07 1.19 1.30 1.42

900 0.34 0.40 0.47 0.54 0.61 0.64 0.67 0.71 0.74 0.81 0.87 0.94 1.00 1.07 1.20 1.33 1.46 1.59

1000 0.37 0.45 0.52 0.60 0.67 0.71 0.75 0.78 0.82 0.89 0.97 1.04 1.11 1.19 1.33 1.48 1.62 1.76

1100 0.41 0.49 0.58 0.66 0.74 0.78 0.82 0.86 0.90 0.98 1.06 1.14 1.22 1.30 1.46 1.62 1.77 1.92

1200 0.45 0.54 0.63 0.72 0.81 0.85 0.89 0.94 0.98 1.07 1.16 1.25 1.33 1.42 1.59 1.76 1.92 2.09

1300 0.49 0.58 0.68 0.78 0.87 0.92 0.97 1.02 1.06 1.16 1.25 1.35 1.44 1.53 1.72 1.90 2.07 2.25

1400 0.52 0.63 0.73 0.84 0.94 0.99 1.04 1.09 1.14 1.25 1.35 1.45 1.55 1.65 1.84 2.03 2.22 2.41

1500 0.56 0.67 0.78 0.89 1.00 1.06 1.11 1.17 1.22 1.33 1.44 1.55 1.65 1.76 1.97 2.17 2.37 2.56

1600 0.60 0.72 0.84 0.95 1.07 1.13 1.19 1.25 1.30 1.42 1.53 1.65 1.76 1.87 2.09 2.30 2.51 2.71

1700 0.64 0.76 0.89 1.01 1.14 1.20 1.26 1.32 1.38 1.50 1.62 1.74 1.86 1.98 2.21 2.43 2.65 2.86

1800 0.81 0.94 1.07 1.20 1.27 1.33 1.40 1.46 1.59 1.72 1.84 1.97 2.09 2.33 2.56 2.78 3.00

1900 0.85 0.99 1.13 1.27 1.34 1.40 1.47 1.54 1.67 1.81 1.94 2.07 2.20 2.45 2.69 2.92 3.14

2000 0.89 1.04 1.19 1.33 1.40 1.48 1.55 1.62 1.76 1.90 2.03 2.17 2.30 2.56 2.81 3.05 3.27

2200 0.98 1.14 1.30 1.46 1.54 1.62 1.69 1.77 1.92 2.07 2.22 2.37 2.51 2.78 3.05 3.29 3.52

2400 1.07 1.25 1.42 1.59 1.67 1.76 1.84 1.92 2.09 2.25 2.41 2.56 2.71 3.00 3.27 3.52 3.75

2600 1.16 1.35 1.53 1.72 1.81 1.90 1.99 2.07 2.25 2.42 2.59 2.75 2.91 3.21 3.48 3.73 3.96

2800 1.25 1.45 1.65 1.84 1.94 2.03 2.13 2.22 2.41 2.59 2.76 2.93 3.09 3.40 3.68 3.93 4.14

3000 1.33 1.55 1.76 1.97 2.07 2.17 2.27 2.37 2.56 2.75 2.93 3.10 3.27 3.58 3.86 4.10 4.30

3200 1.65 1.87 2.09 2.20 2.30 2.41 2.51 2.71 2.91 3.09 3.27 3.44 3.75 4.02 4.25 4.42

3400 1.74 1.98 2.21 2.32 2.43 2.54 2.65 2.86 3.06 3.25 3.43 3.60 3.91 4.17 4.37 4.51

3600 1.84 2.09 2.33 2.45 2.56 2.67 2.78 3.00 3.21 3.40 3.58 3.75 4.05 4.30 4.47 4.57

3800 1.94 2.20 2.45 2.57 2.69 2.80 2.92 3.14 3.35 3.54 3.73 3.89 4.18 4.40 4.54 4.60

4000 2.03 2.30 2.56 2.69 2.81 2.93 3.05 3.27 3.48 3.68 3.86 4.02 4.30 4.49 4.59 4.59

4200 2.41 2.67 2.80 2.93 3.05 3.17 3.40 3.61 3.81 3.98 4.14 4.39 4.55 4.60 4.53

4400 2.51 2.78 2.92 3.05 3.17 3.29 3.52 3.73 3.93 4.10 4.25 4.47 4.59 4.58 4.44

4600 2.61 2.89 3.03 3.16 3.29 3.41 3.64 3.85 4.04 4.20 4.34 4.53 4.60 4.53 4.31

4800 2.71 3.00 3.14 3.27 3.40 3.52 3.75 3.96 4.14 4.30 4.42 4.57 4.59 4.44 4.13

5000 2.81 3.10 3.24 3.38 3.51 3.63 3.86 4.06 4.23 4.38 4.49 4.60 4.55 4.32 3.90

5200 2.91 3.21 3.35 3.48 3.61 3.73 3.96 4.16 4.32 4.45 4.54 4.60 4.48 4.16 3.62

5400 3.00 3.30 3.45 3.58 3.71 3.83 4.05 4.24 4.39 4.50 4.57 4.58 4.38 3.96 3.29

5600 3.09 3.40 3.54 3.68 3.81 3.93 4.14 4.32 4.45 4.55 4.59 4.53 4.25 3.72 2.91

5800 3.18 3.49 3.64 3.77 3.90 4.02 4.22 4.39 4.51 4.58 4.60 4.47 4.09 3.44 2.48

6000 3.27 3.58 3.73 3.86 3.98 4.10 4.30 4.45 4.55 4.60 4.59 4.38 3.90 3.11 1.99

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.

The Driving Force in Power Transmission. Page 79

Horsepower Rating for 1.00 Inch Wide

L Section Belt (0.375 Inch Pitch)

RPM

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 0.38 0.45 0.53 0.60 0.68 0.72 0.75 0.79 0.83 0.90 0.98 1.05 1.13 1.20 1.35 1.50 1.64 1.79

870 0.45 0.54 0.63 0.72 0.81 0.86 0.90 0.95 0.99 1.08 1.17 1.26 1.35 1.44 1.61 1.79 1.96 2.14

950 0.49 0.59 0.69 0.79 0.89 0.94 0.99 1.03 1.08 1.18 1.28 1.37 1.47 1.57 1.76 1.95 2.14 2.32

1160 0.60 0.72 0.84 0.96 1.08 1.14 1.20 1.26 1.32 1.44 1.56 1.67 1.79 1.91 2.14 2.36 2.59 2.81

1425 0.74 0.89 1.03 1.18 1.33 1.40 1.47 1.54 1.62 1.76 1.90 2.04 2.18 2.32 2.60 2.87 3.14 3.40

1750 0.91 1.09 1.27 1.45 1.62 1.71 1.80 1.89 1.97 2.15 2.32 2.49 2.66 2.82 3.15 3.47 3.77 4.07

2850 1.76 2.04 2.32 2.60 2.74 2.87 3.01 3.14 3.40 3.65 3.89 4.13 4.36 4.79 5.17 5.52 5.81

3450 2.46 2.79 3.11 3.27 3.42 3.58 3.73 4.02 4.30 4.57 4.82 5.06 5.48 5.84 6.11 6.29

100 0.052 0.062 0.073 0.083 0.094 0.099 0.10 0.11 0.11 0.12 0.14 0.15 0.16 0.17 0.19 0.21 0.23 0.25

200 0.10 0.12 0.15 0.17 0.19 0.20 0.21 0.22 0.23 0.25 0.27 0.29 0.31 0.33 0.37 0.42 0.46 0.50

300 0.16 0.19 0.22 0.25 0.28 0.30 0.31 0.33 0.34 0.37 0.41 0.44 0.47 0.50 0.56 0.62 0.69 0.75

400 0.21 0.25 0.29 0.33 0.37 0.40 0.42 0.44 0.46 0.50 0.54 0.58 0.62 0.67 0.75 0.83 0.91 1.00

500 0.26 0.31 0.36 0.42 0.47 0.49 0.52 0.55 0.57 0.62 0.68 0.73 0.78 0.83 0.93 1.04 1.14 1.24

600 0.31 0.37 0.44 0.50 0.56 0.59 0.62 0.65 0.69 0.75 0.81 0.87 0.93 1.00 1.12 1.24 1.36 1.49

700 0.36 0.44 0.51 0.58 0.65 0.69 0.73 0.76 0.80 0.87 0.94 1.02 1.09 1.16 1.30 1.45 1.59 1.73

800 0.42 0.50 0.58 0.67 0.75 0.79 0.83 0.87 0.91 1.00 1.08 1.16 1.24 1.32 1.49 1.65 1.81 1.97

900 0.47 0.56 0.65 0.75 0.84 0.89 0.93 0.98 1.03 1.12 1.21 1.30 1.40 1.49 1.67 1.85 2.03 2.21

1000 0.52 0.62 0.73 0.83 0.93 0.99 1.04 1.09 1.14 1.24 1.34 1.45 1.55 1.65 1.85 2.05 2.25 2.44

1100 0.57 0.69 0.80 0.91 1.03 1.08 1.14 1.20 1.25 1.36 1.48 1.59 1.70 1.81 2.03 2.25 2.46 2.67

1200 0.62 0.75 0.87 1.00 1.12 1.18 1.24 1.30 1.36 1.49 1.61 1.73 1.85 1.97 2.21 2.44 2.67 2.90

1300 0.68 0.81 0.94 1.08 1.21 1.28 1.34 1.41 1.48 1.61 1.74 1.87 2.00 2.13 2.38 2.63 2.88 3.12

1400 0.73 0.87 1.02 1.16 1.30 1.37 1.45 1.52 1.59 1.73 1.87 2.01 2.15 2.29 2.56 2.82 3.09 3.34

1500 0.78 0.93 1.09 1.24 1.40 1.47 1.55 1.62 1.70 1.85 2.00 2.15 2.30 2.44 2.73 3.01 3.29 3.56

1600 0.83 1.00 1.16 1.32 1.49 1.57 1.65 1.73 1.81 1.97 2.13 2.29 2.44 2.60 2.90 3.20 3.49 3.77

1700 0.88 1.06 1.23 1.41 1.58 1.66 1.75 1.83 1.92 2.09 2.26 2.42 2.59 2.75 3.07 3.38 3.68 3.97

1800 1.12 1.30 1.49 1.67 1.76 1.85 1.94 2.03 2.21 2.38 2.56 2.73 2.90 3.23 3.56 3.87 4.17

1900 1.18 1.37 1.57 1.76 1.85 1.95 2.04 2.14 2.32 2.51 2.69 2.87 3.05 3.40 3.73 4.05 4.36

2000 1.24 1.45 1.65 1.85 1.95 2.05 2.15 2.25 2.44 2.63 2.82 3.01 3.20 3.56 3.90 4.23 4.54

2200 1.36 1.59 1.81 2.03 2.14 2.25 2.35 2.46 2.67 2.88 3.09 3.29 3.49 3.87 4.23 4.57 4.89

2400 1.49 1.73 1.97 2.21 2.32 2.44 2.56 2.67 2.90 3.12 3.34 3.56 3.77 4.17 4.54 4.89 5.21

2600 1.61 1.87 2.13 2.38 2.51 2.63 2.76 2.88 3.12 3.36 3.59 3.82 4.04 4.45 4.84 5.19 5.50

2800 1.73 2.01 2.29 2.56 2.69 2.82 2.96 3.09 3.34 3.59 3.83 4.07 4.29 4.72 5.11 5.45 5.75

3000 1.85 2.15 2.44 2.73 2.87 3.01 3.15 3.29 3.56 3.82 4.07 4.31 4.54 4.98 5.36 5.69 5.97

3200 2.29 2.60 2.90 3.05 3.20 3.34 3.49 3.77 4.04 4.29 4.54 4.78 5.21 5.59 5.90 6.14

3400 2.42 2.75 3.07 3.22 3.38 3.53 3.68 3.97 4.25 4.51 4.77 5.00 5.43 5.79 6.07 6.27

3600 2.56 2.90 3.23 3.40 3.56 3.71 3.87 4.17 4.45 4.72 4.98 5.21 5.63 5.97 6.21 6.35

3800 2.69 3.05 3.40 3.56 3.73 3.89 4.05 4.36 4.65 4.92 5.17 5.41 5.81 6.11 6.31 6.39

4000 2.82 3.20 3.56 3.73 3.90 4.07 4.23 4.54 4.84 5.11 5.36 5.59 5.97 6.23 6.37 6.37

4200 3.34 3.71 3.89 4.07 4.24 4.40 4.72 5.02 5.29 5.53 5.75 6.10 6.32 6.39 6.30

4400 3.49 3.87 4.05 4.23 4.40 4.57 4.89 5.19 5.45 5.69 5.90 6.21 6.37 6.36 6.17

4600 3.63 4.02 4.21 4.39 4.57 4.74 5.06 5.35 5.61 5.84 6.03 6.29 6.39 6.29 5.98

4800 3.77 4.17 4.36 4.54 4.72 4.89 5.21 5.50 5.75 5.97 6.14 6.35 6.37 6.17 5.73

5000 3.90 4.31 4.51 4.69 4.87 5.04 5.36 5.64 5.88 6.08 6.23 6.38 6.31 6.00 5.41

5200 4.04 4.45 4.65 4.84 5.02 5.19 5.50 5.77 6.00 6.18 6.30 6.38 6.22 5.78 5.03

5400 4.17 4.59 4.79 4.98 5.16 5.32 5.63 5.89 6.10 6.25 6.35 6.36 6.08 5.50 4.57

5600 4.29 4.72 4.92 5.11 5.29 5.45 5.75 6.00 6.19 6.32 6.38 6.30 5.90 5.17 4.05

5800 4.42 4.85 5.05 5.24 5.41 5.58 5.86 6.09 6.26 6.36 6.39 6.21 5.68 4.77 3.44

6000 4.54 4.98 5.17 5.36 5.53 5.69 5.97 6.18 6.32 6.38 6.37 6.08 5.41 4.32 2.76

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 The Gates Rubber Company

Horsepower Rating for 0.75 Inch Wide

H Section Belt (0.500 Inch Pitch)

RPM

Faster

Shaft

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

725 1.26 1.44 1.62 1.71 1.80 1.89 1.98 2.16 2.34 2.52 2.70 2.88 3.23 3.59 3.94 4.29

870 1.52 1.73 1.95 2.06 2.16 2.27 2.38 2.59 2.81 3.02 3.23 3.44 3.87 4.29 4.71 5.12

950 1.66 1.89 2.13 2.24 2.36 2.48 2.59 2.83 3.06 3.29 3.53 3.76 4.22 4.67 5.12 5.57

1160 2.02 2.31 2.59 2.73 2.88 3.02 3.16 3.44 3.73 4.01 4.29 4.57 5.12 5.67 6.20 6.74

1425 2.83 3.18 3.35 3.53 3.70 3.87 4.22 4.56 4.90 5.24 5.57 6.23 6.88 7.52 8.15

1750 3.46 3.89 4.10 4.31 4.52 4.73 5.15 5.56 5.97 6.37 6.77 7.56 8.32 9.05 9.76

2850 6.23 6.56 6.88 7.21 7.52 8.15 8.75 9.34 9.91 10.5 11.5 12.4 13.3 14.0

3450 7.46 7.84 8.21 8.58 8.94 9.64 10.3 11.0 11.6 12.2 13.2 14.1 14.7 15.2

100 0.17 0.20 0.22 0.24 0.25 0.26 0.27 0.30 0.32 0.35 0.37 0.40 0.45 0.50 0.55 0.60

200 0.35 0.40 0.45 0.47 0.50 0.52 0.55 0.60 0.65 0.70 0.75 0.80 0.90 1.00 1.10 1.20

300 0.52 0.60 0.67 0.71 0.75 0.79 0.82 0.90 0.97 1.05 1.12 1.20 1.34 1.49 1.64 1.79

400 0.70 0.80 0.90 0.95 1.00 1.05 1.10 1.20 1.30 1.39 1.49 1.59 1.79 1.99 2.19 2.39

500 0.87 1.00 1.12 1.18 1.25 1.31 1.37 1.49 1.62 1.74 1.87 1.99 2.24 2.48 2.73 2.98

600 1.05 1.20 1.34 1.42 1.49 1.57 1.64 1.79 1.94 2.09 2.24 2.39 2.68 2.98 3.27 3.56

700 1.22 1.39 1.57 1.66 1.74 1.83 1.92 2.09 2.26 2.43 2.61 2.78 3.12 3.46 3.80 4.14

800 1.39 1.59 1.79 1.89 1.99 2.09 2.19 2.39 2.58 2.78 2.98 3.17 3.56 3.95 4.34 4.72

900 1.57 1.79 2.01 2.13 2.24 2.35 2.46 2.68 2.90 3.12 3.34 3.56 4.00 4.43 4.86 5.29

1000 1.74 1.99 2.24 2.36 2.48 2.61 2.73 2.98 3.22 3.46 3.71 3.95 4.43 4.91 5.38 5.85

1100 1.92 2.19 2.46 2.59 2.73 2.87 3.00 3.27 3.54 3.80 4.07 4.34 4.86 5.38 5.90 6.41

1200 2.39 2.68 2.83 2.98 3.12 3.27 3.56 3.85 4.14 4.43 4.72 5.29 5.85 6.41 6.95

1300 2.58 2.90 3.06 3.22 3.38 3.54 3.85 4.17 4.48 4.79 5.10 5.71 6.31 6.91 7.49

1400 2.78 3.12 3.29 3.46 3.63 3.80 4.14 4.48 4.82 5.15 5.48 6.13 6.77 7.40 8.02

1500 2.98 3.34 3.53 3.71 3.89 4.07 4.43 4.79 5.15 5.50 5.85 6.54 7.22 7.88 8.53

1600 3.17 3.56 3.76 3.95 4.14 4.34 4.72 5.10 5.48 5.85 6.22 6.95 7.67 8.36 9.03

1700 3.37 3.78 3.99 4.19 4.40 4.60 5.01 5.41 5.81 6.20 6.59 7.36 8.10 8.83 9.52

1800 3.56 4.00 4.22 4.43 4.65 4.86 5.29 5.71 6.13 6.54 6.95 7.75 8.53 9.28 10.0

1900 3.76 4.22 4.44 4.67 4.90 5.12 5.57 6.01 6.45 6.88 7.31 8.15 8.95 9.72 10.5

2000 3.95 4.43 4.67 4.91 5.15 5.38 5.85 6.31 6.77 7.22 7.67 8.53 9.36 10.2 10.9

2100 4.65 4.90 5.15 5.40 5.64 6.13 6.61 7.09 7.56 8.02 8.91 9.76 10.6 11.3

2200 4.86 5.12 5.38 5.64 5.90 6.41 6.91 7.40 7.88 8.36 9.28 10.2 11.0 11.8

2300 5.08 5.35 5.62 5.89 6.15 6.68 7.20 7.71 8.21 8.70 9.64 10.5 11.4 12.2

2400 5.29 5.57 5.85 6.13 6.41 6.95 7.49 8.02 8.53 9.03 10.0 10.9 11.8 12.5

2500 5.50 5.79 6.08 6.37 6.66 7.22 7.78 8.32 8.85 9.36 10.3 11.3 12.1 12.9

2600 5.71 6.01 6.31 6.61 6.91 7.49 8.06 8.62 9.16 9.68 10.7 11.6 12.5 13.2

2800 6.13 6.45 6.77 7.09 7.40 8.02 8.62 9.20 9.76 10.3 11.3 12.3 13.1 13.9

3000 6.54 6.88 7.22 7.56 7.88 8.53 9.16 9.76 10.3 10.9 12.0 12.9 13.7 14.4

3200 6.95 7.31 7.67 8.02 8.36 9.03 9.68 10.3 10.9 11.5 12.5 13.5 14.2 14.8

3400 7.36 7.73 8.10 8.47 8.83 9.52 10.2 10.8 11.4 12.0 13.1 14.0 14.7 15.2

3600 8.53 8.91 9.28 10.0 10.7 11.3 12.0 12.5 13.6 14.4 15.0 15.4

3800 8.95 9.34 9.72 10.5 11.2 11.8 12.4 13.0 14.0 14.8 15.3 15.5

4000 9.36 9.76 10.2 10.9 11.6 12.3 12.9 13.5 14.4 15.1 15.4 15.5

4200 9.76 10.2 10.6 11.3 12.1 12.7 13.3 13.9 14.7 15.3 15.5 15.4

4400 10.2 10.6 11.0 11.8 12.5 13.1 13.7 14.2 15.0 15.4 15.5 15.1

4600 10.5 11.0 11.4 12.2 12.9 13.5 14.1 14.5 15.2 15.5 15.3 14.7

4800 10.9 11.3 11.8 12.5 13.2 13.9 14.4 14.8 15.4 15.5 15.1 14.1

5000 11.3 11.7 12.1 12.9 13.6 14.2 14.7 15.1 15.5 15.4 14.7 13.4

5200 11.6 12.1 12.5 13.2 13.9 14.5 14.9 15.2 15.5 15.2 14.2

5400 12.0 12.4 12.8 13.6 14.2 14.7 15.1 15.4 15.5 14.9 13.6

5600 12.3 12.7 13.1 13.9 14.5 14.9 15.3 15.5 15.4 14.5

5800 12.6 13.0 13.4 14.1 14.7 15.1 15.4 15.5 15.2 14.0

6000 12.9 13.3 13.7 14.4 14.9 15.3 15.5 15.5 14.9 13.4

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.

The Driving Force in Power Transmission. Page 81

Horsepower Rating for 1.00 Inch Wide

H Section Belt (0.500 Inch Pitch)

RPM

Faster

Shaft

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

725 1.75 1.99 2.24 2.37 2.49 2.62 2.74 2.99 3.23 3.48 3.73 3.97 4.46 4.95 5.44 5.92

870 2.09 2.39 2.69 2.84 2.99 3.14 3.28 3.58 3.88 4.17 4.46 4.76 5.34 5.92 6.50 7.07

950 2.29 2.61 2.94 3.10 3.26 3.42 3.58 3.91 4.23 4.55 4.87 5.19 5.82 6.45 7.08 7.69

1160 2.79 3.18 3.58 3.78 3.97 4.17 4.37 4.76 5.15 5.54 5.92 6.31 7.07 7.82 8.57 9.30

1425 3.91 4.39 4.63 4.87 5.11 5.35 5.82 6.29 6.76 7.23 7.69 8.61 9.51 10.4 11.2

1750 4.78 5.37 5.66 5.95 6.24 6.53 7.11 7.68 8.24 8.80 9.35 10.4 11.5 12.5 13.5

2850 8.61 9.06 9.51 9.95 10.4 11.2 12.1 12.9 13.7 14.5 15.9 17.2 18.3 19.3

3450 10.3 10.8 11.3 11.8 12.3 13.3 14.3 15.1 16.0 16.8 18.2 19.4 20.4 21.0

100 0.24 0.28 0.31 0.33 0.34 0.36 0.38 0.41 0.45 0.48 0.52 0.55 0.62 0.69 0.76 0.83

200 0.48 0.55 0.62 0.65 0.69 0.72 0.76 0.83 0.89 0.96 1.03 1.10 1.24 1.38 1.51 1.65

300 0.72 0.83 0.93 0.98 1.03 1.08 1.14 1.24 1.34 1.45 1.55 1.65 1.86 2.06 2.27 2.47

400 0.96 1.10 1.24 1.31 1.38 1.45 1.51 1.65 1.79 1.93 2.06 2.20 2.47 2.75 3.02 3.29

500 1.20 1.38 1.55 1.63 1.72 1.81 1.89 2.06 2.23 2.41 2.58 2.75 3.09 3.43 3.77 4.11

600 1.45 1.65 1.86 1.96 2.06 2.17 2.27 2.47 2.68 2.88 3.09 3.29 3.70 4.11 4.51 4.92

700 1.69 1.93 2.17 2.29 2.41 2.53 2.65 2.88 3.12 3.36 3.60 3.84 4.31 4.78 5.25 5.72

800 1.93 2.20 2.47 2.61 2.75 2.88 3.02 3.29 3.57 3.84 4.11 4.38 4.92 5.46 5.99 6.52

900 2.17 2.47 2.78 2.94 3.09 3.24 3.40 3.70 4.01 4.31 4.62 4.92 5.52 6.12 6.72 7.30

1000 2.41 2.75 3.09 3.26 3.43 3.60 3.77 4.11 4.45 4.78 5.12 5.46 6.12 6.78 7.43 8.08

1100 2.65 3.02 3.40 3.58 3.77 3.96 4.14 4.51 4.89 5.25 5.62 5.99 6.72 7.43 8.15 8.85

1200 3.29 3.70 3.91 4.11 4.31 4.51 4.92 5.32 5.72 6.12 6.52 7.30 8.08 8.85 9.60

1300 3.57 4.01 4.23 4.45 4.67 4.89 5.32 5.76 6.19 6.62 7.04 7.89 8.72 9.54 10.3

1400 3.84 4.31 4.55 4.78 5.02 5.25 5.72 6.19 6.65 7.11 7.56 8.47 9.35 10.2 11.1

1500 4.11 4.62 4.87 5.12 5.37 5.62 6.12 6.62 7.11 7.60 8.08 9.04 9.97 10.9 11.8

1600 4.38 4.92 5.19 5.46 5.72 5.99 6.52 7.04 7.56 8.08 8.59 9.60 10.6 11.5 12.5

1700 4.65 5.22 5.51 5.79 6.07 6.35 6.91 7.47 8.02 8.56 9.10 10.2 11.2 12.2 13.2

1800 4.92 5.52 5.82 6.12 6.42 6.72 7.30 7.89 8.47 9.04 9.60 10.7 11.8 12.8 13.8

1900 5.19 5.82 6.14 6.45 6.76 7.08 7.69 8.31 8.91 9.51 10.1 11.2 12.4 13.4 14.5

2000 5.46 6.12 6.45 6.78 7.11 7.43 8.08 8.72 9.35 9.97 10.6 11.8 12.9 14.0 15.1

2100 6.42 6.76 7.11 7.45 7.79 8.47 9.13 9.79 10.4 11.1 12.3 13.5 14.6 15.7

2200 6.72 7.08 7.43 7.79 8.15 8.85 9.54 10.2 10.9 11.5 12.8 14.0 15.2 16.2

2300 7.01 7.39 7.76 8.13 8.50 9.23 9.94 10.6 11.3 12.0 13.3 14.6 15.7 16.8

2400 7.30 7.69 8.08 8.47 8.85 9.60 10.3 11.1 11.8 12.5 13.8 15.1 16.2 17.3

2500 7.60 8.00 8.40 8.80 9.19 9.97 10.7 11.5 12.2 12.9 14.3 15.6 16.7 17.8

2600 7.89 8.31 8.72 9.13 9.54 10.3 11.1 11.9 12.6 13.4 14.8 16.1 17.2 18.3

2800 8.47 8.91 9.35 9.79 10.2 11.1 11.9 12.7 13.5 14.2 15.7 17.0 18.1 19.1

3000 9.04 9.51 9.97 10.4 10.9 11.8 12.6 13.5 14.3 15.1 16.5 17.8 18.9 19.9

3200 9.60 10.1 10.6 11.1 11.5 12.5 13.4 14.2 15.1 15.9 17.3 18.6 19.6 20.5

3400 10.2 10.7 11.2 11.7 12.2 13.2 14.1 15.0 15.8 16.6 18.0 19.3 20.2 20.9

3600 11.8 12.3 12.8 13.8 14.8 15.7 16.5 17.3 18.7 19.9 20.7 21.2

3800 12.4 12.9 13.4 14.5 15.4 16.3 17.2 18.0 19.3 20.4 21.1 21.4

4000 12.9 13.5 14.0 15.1 16.1 17.0 17.8 18.6 19.9 20.8 21.3 21.4

4200 13.5 14.1 14.6 15.7 16.7 17.6 18.4 19.1 20.3 21.1 21.4 21.2

4400 14.0 14.6 15.2 16.2 17.2 18.1 18.9 19.6 20.7 21.3 21.4 20.8

4600 14.6 15.1 15.7 16.8 17.8 18.7 19.4 20.1 21.0 21.4 21.2 20.3

4800 15.1 15.7 16.2 17.3 18.3 19.1 19.9 20.5 21.2 21.4 20.8 19.5

5000 15.6 16.2 16.7 17.8 18.8 19.6 20.3 20.8 21.4 21.2 20.3 18.5

5200 16.1 16.7 17.2 18.3 19.2 20.0 20.6 21.1 21.4 21.0 19.6

5400 16.5 17.1 17.7 18.7 19.6 20.3 20.9 21.2 21.4 20.6 18.8

5600 17.0 17.6 18.1 19.1 20.0 20.6 21.1 21.4 21.2 20.0

5800 17.4 18.0 18.5 19.5 20.3 20.9 21.3 21.4 20.9 19.4

6000 17.8 18.4 18.9 19.9 20.6 21.1 21.4 21.4 20.6 18.5

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 The Gates Rubber Company

Horsepower Rating for 1.50 Inch Wide

H Section Belt (0.500 Inch Pitch)

RPM

Faster

Shaft

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

725 2.71 3.09 3.48 3.67 3.87 4.06 4.25 4.63 5.02 5.40 5.78 6.17 6.93 7.68 8.44 9.19

870 3.25 3.71 4.17 4.40 4.63 4.87 5.10 5.55 6.01 6.47 6.93 7.38 8.29 9.19 10.1 11.0

950 3.55 4.05 4.56 4.81 5.06 5.31 5.56 6.06 6.56 7.06 7.55 8.05 9.03 10.0 11.0 11.9

1160 4.33 4.94 5.55 5.86 6.17 6.47 6.77 7.38 7.99 8.59 9.19 9.79 11.0 12.1 13.3 14.4

1425 6.06 6.81 7.18 7.55 7.93 8.30 9.03 9.77 10.5 11.2 11.9 13.4 14.8 16.1 17.5

1750 7.42 8.34 8.79 9.24 9.69 10.1 11.0 11.9 12.8 13.7 14.5 16.2 17.8 19.4 20.9

2850 13.4 14.1 14.8 15.4 16.1 17.5 18.8 20.0 21.2 22.4 24.6 26.7 28.5 30.0

3450 16.0 16.8 17.6 18.4 19.2 20.7 22.1 23.5 24.8 26.1 28.3 30.1 31.6 32.6

100 0.37 0.43 0.48 0.51 0.53 0.56 0.59 0.64 0.69 0.75 0.80 0.85 0.96 1.07 1.18 1.28

200 0.75 0.85 0.96 1.01 1.07 1.12 1.18 1.28 1.39 1.50 1.60 1.71 1.92 2.14 2.35 2.56

300 1.12 1.28 1.44 1.52 1.60 1.68 1.76 1.92 2.08 2.24 2.40 2.56 2.88 3.20 3.52 3.84

400 1.50 1.71 1.92 2.03 2.14 2.24 2.35 2.56 2.78 2.99 3.20 3.41 3.84 4.26 4.69 5.11

500 1.87 2.14 2.40 2.54 2.67 2.80 2.94 3.20 3.47 3.73 4.00 4.26 4.79 5.32 5.85 6.38

600 2.24 2.56 2.88 3.04 3.20 3.36 3.52 3.84 4.16 4.48 4.79 5.11 5.74 6.38 7.01 7.63

700 2.62 2.99 3.36 3.55 3.73 3.92 4.10 4.48 4.85 5.22 5.59 5.96 6.69 7.42 8.15 8.88

800 2.99 3.41 3.84 4.05 4.26 4.48 4.69 5.11 5.53 5.96 6.38 6.80 7.63 8.46 9.29 10.1

900 3.36 3.84 4.32 4.56 4.79 5.03 5.27 5.74 6.22 6.69 7.16 7.63 8.57 9.50 10.4 11.3

1000 3.73 4.26 4.79 5.06 5.32 5.59 5.85 6.38 6.90 7.42 7.95 8.46 9.50 10.5 11.5 12.5

1100 4.10 4.69 5.27 5.56 5.85 6.14 6.43 7.01 7.58 8.15 8.72 9.29 10.4 11.5 12.6 13.7

1200 5.11 5.74 6.06 6.38 6.69 7.01 7.63 8.26 8.88 9.50 10.1 11.3 12.5 13.7 14.9

1300 5.53 6.22 6.56 6.90 7.24 7.58 8.26 8.93 9.60 10.3 10.9 12.2 13.5 14.8 16.0

1400 5.96 6.69 7.06 7.42 7.79 8.15 8.88 9.60 10.3 11.0 11.7 13.1 14.5 15.9 17.2

1500 6.38 7.16 7.55 7.95 8.34 8.72 9.50 10.3 11.0 11.8 12.5 14.0 15.5 16.9 18.3

1600 6.80 7.63 8.05 8.46 8.88 9.29 10.1 10.9 11.7 12.5 13.3 14.9 16.4 17.9 19.4

1700 7.21 8.10 8.54 8.98 9.42 9.86 10.7 11.6 12.4 13.3 14.1 15.8 17.4 18.9 20.4

1800 7.63 8.57 9.03 9.50 9.96 10.4 11.3 12.2 13.1 14.0 14.9 16.6 18.3 19.9 21.4

1900 8.05 9.03 9.52 10.0 10.5 11.0 11.9 12.9 13.8 14.8 15.7 17.5 19.2 20.8 22.4

2000 8.46 9.50 10.0 10.5 11.0 11.5 12.5 13.5 14.5 15.5 16.4 18.3 20.1 21.8 23.4

2100 9.96 10.5 11.0 11.6 12.1 13.1 14.2 15.2 16.2 17.2 19.1 20.9 22.7 24.3

2200 10.4 11.0 11.5 12.1 12.6 13.7 14.8 15.9 16.9 17.9 19.9 21.8 23.5 25.2

2300 10.9 11.5 12.0 12.6 13.2 14.3 15.4 16.5 17.6 18.6 20.7 22.6 24.4 26.1

2400 11.3 11.9 12.5 13.1 13.7 14.9 16.0 17.2 18.3 19.4 21.4 23.4 25.2 26.9

2500 11.8 12.4 13.0 13.7 14.3 15.5 16.7 17.8 19.0 20.1 22.2 24.2 26.0 27.6

2600 12.2 12.9 13.5 14.2 14.8 16.0 17.3 18.5 19.6 20.8 22.9 24.9 26.7 28.4

2800 13.1 13.8 14.5 15.2 15.9 17.2 18.5 19.7 20.9 22.1 24.3 26.3 28.1 29.7

3000 14.0 14.8 15.5 16.2 16.9 18.3 19.6 20.9 22.2 23.4 25.6 27.6 29.4 30.8

3200 14.9 15.7 16.4 17.2 17.9 19.4 20.8 22.1 23.4 24.6 26.9 28.8 30.5 31.8

3400 15.8 16.6 17.4 18.1 18.9 20.4 21.8 23.2 24.5 25.8 28.0 29.9 31.4 32.5

3600 18.3 19.1 19.9 21.4 22.9 24.3 25.6 26.9 29.1 30.8 32.1 33.0

3800 19.2 20.0 20.8 22.4 23.9 25.3 26.7 27.9 30.0 31.6 32.7 33.2

4000 20.1 20.9 21.8 23.4 24.9 26.3 27.6 28.8 30.8 32.3 33.1 33.2

4200 20.9 21.8 22.7 24.3 25.8 27.3 28.5 29.7 31.5 32.8 33.2 32.9

4400 21.8 22.7 23.5 25.2 26.7 28.1 29.4 30.5 32.1 33.1 33.2 32.3

4600 22.6 23.5 24.4 26.1 27.6 28.9 30.1 31.2 32.6 33.2 32.9 31.4

4800 23.4 24.3 25.2 26.9 28.4 29.7 30.8 31.8 33.0 33.2 32.3 30.3

5000 24.2 25.1 26.0 27.6 29.1 30.4 31.4 32.3 33.2 33.0 31.5 28.8

5200 24.9 25.8 26.7 28.4 29.8 31.0 32.0 32.7 33.2 32.5 30.5

5400 25.6 26.6 27.4 29.1 30.4 31.5 32.4 33.0 33.1 31.9 29.2

5600 26.3 27.3 28.1 29.7 31.0 32.0 32.8 33.2 32.9 31.1

5800 27.0 27.9 28.8 30.3 31.5 32.4 33.0 33.2 32.5 30.0

6000 27.6 28.5 29.4 30.8 32.0 32.8 33.2 33.2 31.9 28.8

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.

The Driving Force in Power Transmission. Page 83

Horsepower Rating for 2.00 Inch Wide

H Section Belt (0.500 Inch Pitch)

RPM

Faster

Shaft

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

725 3.79 4.33 4.87 5.14 5.41 5.68 5.95 6.49 7.03 7.56 8.10 8.63 9.70 10.8 11.8 12.9

870 4.55 5.20 5.84 6.17 6.49 6.81 7.13 7.78 8.42 9.06 9.70 10.3 11.6 12.9 14.1 15.4

950 4.97 5.67 6.38 6.73 7.08 7.43 7.78 8.48 9.18 9.88 10.6 11.3 12.6 14.0 15.4 16.7

1160 6.06 6.92 7.78 8.20 8.63 9.06 9.48 10.3 11.2 12.0 12.9 13.7 15.4 17.0 18.6 20.2

1425 8.48 9.53 10.1 10.6 11.1 11.6 12.6 13.7 14.7 15.7 16.7 18.7 20.7 22.6 24.4

1750 10.4 11.7 12.3 12.9 13.6 14.2 15.4 16.7 17.9 19.1 20.3 22.7 25.0 27.2 29.3

2850 18.7 19.7 20.7 21.6 22.6 24.4 26.3 28.0 29.7 31.4 34.5 37.3 39.8 42.0

3450 22.4 23.5 24.6 25.7 26.8 28.9 31.0 32.9 34.7 36.5 39.6 42.2 44.2 45.7

100 0.52 0.60 0.67 0.71 0.75 0.79 0.82 0.90 0.97 1.05 1.12 1.20 1.35 1.50 1.65 1.79

200 1.05 1.20 1.35 1.42 1.50 1.57 1.65 1.79 1.94 2.09 2.24 2.39 2.69 2.99 3.29 3.59

300 1.57 1.79 2.02 2.13 2.24 2.36 2.47 2.69 2.92 3.14 3.36 3.59 4.03 4.48 4.93 5.37

400 2.09 2.39 2.69 2.84 2.99 3.14 3.29 3.59 3.89 4.18 4.48 4.78 5.37 5.97 6.56 7.16

500 2.62 2.99 3.36 3.55 3.74 3.92 4.11 4.48 4.85 5.23 5.60 5.97 6.71 7.45 8.19 8.93

600 3.14 3.59 4.03 4.26 4.48 4.71 4.93 5.37 5.82 6.27 6.71 7.16 8.04 8.93 9.81 10.7

700 3.66 4.18 4.71 4.97 5.23 5.49 5.75 6.27 6.79 7.30 7.82 8.34 9.37 10.4 11.4 12.4

800 4.18 4.78 5.37 5.67 5.97 6.27 6.56 7.16 7.75 8.34 8.93 9.51 10.7 11.9 13.0 14.2

900 4.71 5.37 6.04 6.38 6.71 7.04 7.38 8.04 8.71 9.37 10.0 10.7 12.0 13.3 14.6 15.9

1000 5.23 5.97 6.71 7.08 7.45 7.82 8.19 8.93 9.66 10.4 11.1 11.9 13.3 14.7 16.2 17.6

1100 5.75 6.56 7.38 7.78 8.19 8.60 9.00 9.81 10.6 11.4 12.2 13.0 14.6 16.2 17.7 19.2

1200 7.16 8.04 8.48 8.93 9.37 9.81 10.7 11.6 12.4 13.3 14.2 15.9 17.6 19.2 20.9

1300 7.75 8.71 9.18 9.66 10.1 10.6 11.6 12.5 13.4 14.4 15.3 17.1 18.9 20.7 22.5

1400 8.34 9.37 9.88 10.4 10.9 11.4 12.4 13.4 14.4 15.4 16.4 18.4 20.3 22.2 24.0

1500 8.93 10.0 10.6 11.1 11.7 12.2 13.3 14.4 15.4 16.5 17.6 19.6 21.7 23.7 25.6

1600 9.51 10.7 11.3 11.9 12.4 13.0 14.2 15.3 16.4 17.6 18.7 20.9 23.0 25.1 27.1

1700 10.1 11.3 12.0 12.6 13.2 13.8 15.0 16.2 17.4 18.6 19.8 22.1 24.3 26.5 28.6

1800 10.7 12.0 12.6 13.3 13.9 14.6 15.9 17.1 18.4 19.6 20.9 23.3 25.6 27.8 30.0

1900 11.3 12.6 13.3 14.0 14.7 15.4 16.7 18.0 19.4 20.7 21.9 24.4 26.9 29.2 31.4

2000 11.9 13.3 14.0 14.7 15.4 16.2 17.6 18.9 20.3 21.7 23.0 25.6 28.1 30.5 32.7

2100 13.9 14.7 15.4 16.2 16.9 18.4 19.8 21.3 22.7 24.0 26.7 29.3 31.7 34.0

2200 14.6 15.4 16.2 16.9 17.7 19.2 20.7 22.2 23.7 25.1 27.8 30.5 33.0 35.3

2300 15.2 16.0 16.9 17.7 18.5 20.0 21.6 23.1 24.6 26.1 28.9 31.6 34.1 36.5

2400 15.9 16.7 17.6 18.4 19.2 20.9 22.5 24.0 25.6 27.1 30.0 32.7 35.3 37.6

2500 16.5 17.4 18.3 19.1 20.0 21.7 23.3 25.0 26.5 28.1 31.0 33.8 36.4 38.7

2600 17.1 18.0 18.9 19.8 20.7 22.5 24.2 25.8 27.5 29.1 32.1 34.9 37.4 39.7

2800 18.4 19.4 20.3 21.3 22.2 24.0 25.8 27.6 29.3 30.9 34.0 36.9 39.4 41.6

3000 19.6 20.7 21.7 22.7 23.7 25.6 27.5 29.3 31.0 32.7 35.9 38.7 41.1 43.2

3200 20.9 21.9 23.0 24.0 25.1 27.1 29.1 30.9 32.7 34.5 37.6 40.4 42.7 44.5

3400 22.1 23.2 24.3 25.4 26.5 28.6 30.6 32.5 34.3 36.1 39.2 41.9 44.0 45.5

3600 25.6 26.7 27.8 30.0 32.1 34.0 35.9 37.6 40.7 43.2 45.0 46.1

3800 26.9 28.0 29.2 31.4 33.5 35.5 37.3 39.0 42.0 44.3 45.8 46.5

4000 28.1 29.3 30.5 32.7 34.9 36.9 38.7 40.4 43.2 45.2 46.3 46.5

4200 29.3 30.5 31.7 34.0 36.2 38.2 40.0 41.6 44.2 45.9 46.5 46.1

4400 30.5 31.7 33.0 35.3 37.4 39.4 41.1 42.7 45.0 46.3 46.4 45.3

4600 31.6 32.9 34.1 36.5 38.6 40.5 42.2 43.6 45.7 46.5 46.0 44.0

4800 32.7 34.0 35.3 37.6 39.7 41.6 43.2 44.5 46.1 46.5 45.3 42.4

5000 33.8 35.1 36.4 38.7 40.8 42.5 44.0 45.2 46.4 46.2 44.1 40.3

5200 34.9 36.2 37.4 39.7 41.7 43.4 44.7 45.7 46.5 45.6 42.7

5400 35.9 37.2 38.4 40.7 42.6 44.2 45.4 46.1 46.4 44.7 40.8

5600 36.9 38.2 39.4 41.6 43.4 44.8 45.9 46.4 46.1 43.5

5800 37.8 39.1 40.3 42.4 44.1 45.4 46.2 46.5 45.5 42.0

6000 38.7 40.0 41.1 43.2 44.7 45.9 46.4 46.5 44.7 40.3

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 The Gates Rubber Company

orsepower Rating for 3.00 Inch Wide

H Section Belt (0.500 Inch Pitch)

RPM

Faster

Shaft

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

725 6.02 6.88 7.73 8.16 8.59 9.02 9.45 10.3 11.2 12.0 12.9 13.7 15.4 17.1 18.8 20.4

870 7.22 8.25 9.27 9.79 10.3 10.8 11.3 12.3 13.4 14.4 15.4 16.4 18.4 20.4 22.4 24.4

950 7.88 9.00 10.1 10.7 11.2 11.8 12.4 13.5 14.6 15.7 16.8 17.9 20.1 22.2 24.4 26.5

1160 9.62 11.0 12.3 13.0 13.7 14.4 15.1 16.4 17.7 19.1 20.4 21.7 24.4 27.0 29.5 32.1

1425 13.5 15.1 16.0 16.8 17.6 18.4 20.1 21.7 23.3 24.9 26.5 29.7 32.8 35.8 38.8

1750 16.5 18.5 19.5 20.5 21.5 22.5 24.5 26.5 28.4 30.3 32.2 36.0 39.6 43.1 46.5

2850 29.7 31.2 32.8 34.3 35.8 38.8 41.7 44.5 47.2 49.8 54.8 59.3 63.2 66.7

3450 35.5 37.3 39.1 40.8 42.6 45.9 49.1 52.2 55.1 57.9 62.8 67.0 70.2 72.5

100 0.83 0.95 1.07 1.13 1.19 1.25 1.31 1.42 1.54 1.66 1.78 1.90 2.14 2.37 2.61 2.85

200 1.66 1.90 2.14 2.26 2.37 2.49 2.61 2.85 3.09 3.32 3.56 3.80 4.27 4.75 5.22 5.69

300 2.49 2.85 3.20 3.38 3.56 3.74 3.92 4.27 4.63 4.98 5.34 5.69 6.40 7.11 7.82 8.53

400 3.32 3.80 4.27 4.51 4.75 4.98 5.22 5.69 6.17 6.64 7.11 7.59 8.53 9.48 10.4 11.4

500 4.15 4.75 5.34 5.63 5.93 6.23 6.52 7.11 7.70 8.30 8.89 9.48 10.7 11.8 13.0 14.2

600 4.98 5.69 6.40 6.76 7.11 7.47 7.82 8.53 9.24 9.95 10.7 11.4 12.8 14.2 15.6 17.0

700 5.81 6.64 7.47 7.88 8.30 8.71 9.12 9.95 10.8 11.6 12.4 13.2 14.9 16.5 18.1 19.7

800 6.64 7.59 8.53 9.00 9.48 9.95 10.4 11.4 12.3 13.2 14.2 15.1 17.0 18.8 20.6 22.5

900 7.47 8.53 9.59 10.1 10.7 11.2 11.7 12.8 13.8 14.9 15.9 17.0 19.0 21.1 23.2 25.2

1000 8.30 9.48 10.7 11.2 11.8 12.4 13.0 14.2 15.3 16.5 17.7 18.8 21.1 23.4 25.6 27.9

1100 9.12 10.4 11.7 12.4 13.0 13.6 14.3 15.6 16.8 18.1 19.4 20.6 23.2 25.6 28.1 30.5

1200 11.4 12.8 13.5 14.2 14.9 15.6 17.0 18.3 19.7 21.1 22.5 25.2 27.9 30.5 33.1

1300 12.3 13.8 14.6 15.3 16.1 16.8 18.3 19.8 21.3 22.8 24.3 27.2 30.1 32.9 35.7

1400 13.2 14.9 15.7 16.5 17.3 18.1 19.7 21.3 22.9 24.5 26.1 29.2 32.2 35.2 38.2

1500 14.2 15.9 16.8 17.7 18.5 19.4 21.1 22.8 24.5 26.2 27.9 31.2 34.4 37.5 40.6

1600 15.1 17.0 17.9 18.8 19.7 20.6 22.5 24.3 26.1 27.9 29.6 33.1 36.5 39.8 43.0

1700 16.0 18.0 19.0 20.0 20.9 21.9 23.8 25.7 27.6 29.5 31.4 35.0 38.6 42.0 45.4

1800 17.0 19.0 20.1 21.1 22.1 23.2 25.2 27.2 29.2 31.2 33.1 36.9 40.6 44.2 47.6

1900 17.9 20.1 21.2 22.2 23.3 24.4 26.5 28.6 30.7 32.8 34.8 38.8 42.6 46.3 49.8

2000 18.8 21.1 22.2 23.4 24.5 25.6 27.9 30.1 32.2 34.4 36.5 40.6 44.6 48.4 52.0

2100 22.1 23.3 24.5 25.7 26.9 29.2 31.5 33.8 36.0 38.2 42.4 46.5 50.4 54.0

2200 23.2 24.4 25.6 26.9 28.1 30.5 32.9 35.2 37.5 39.8 44.2 48.4 52.3 56.0

2300 24.2 25.5 26.8 28.0 29.3 31.8 34.3 36.7 39.1 41.4 45.9 50.2 54.2 57.9

2400 25.2 26.5 27.9 29.2 30.5 33.1 35.7 38.2 40.6 43.0 47.6 52.0 56.0 59.7

2500 26.2 27.6 29.0 30.3 31.7 34.4 37.0 39.6 42.1 44.6 49.3 53.7 57.7 61.4

2600 27.2 28.6 30.1 31.5 32.9 35.7 38.4 41.0 43.6 46.1 50.9 55.3 59.4 63.0

2800 29.2 30.7 32.2 33.8 35.2 38.2 41.0 43.8 46.5 49.1 54.0 58.5 62.5 66.0

3000 31.2 32.8 34.4 36.0 37.5 40.6 43.6 46.5 49.3 52.0 57.0 61.4 65.3 68.5

3200 33.1 34.8 36.5 38.2 39.8 43.0 46.1 49.1 52.0 54.7 59.7 64.1 67.7 70.6

3400 35.0 36.8 38.6 40.3 42.0 45.4 48.6 51.6 54.5 57.3 62.2 66.4 69.8 72.2

3600 40.6 42.4 44.2 47.6 50.9 54.0 57.0 59.7 64.6 68.5 71.4 73.3

3800 42.6 44.5 46.3 49.8 53.2 56.3 59.3 62.0 66.7 70.3 72.7 73.8

4000 44.6 46.5 48.4 52.0 55.3 58.5 61.4 64.1 68.5 71.7 73.5 73.7

4200 46.5 48.5 50.4 54.0 57.4 60.6 63.4 66.0 70.1 72.8 73.8 73.1

4400 48.4 50.4 52.3 56.0 59.4 62.5 65.3 67.7 71.4 73.5 73.7 71.8

4600 50.2 52.2 54.2 57.9 61.3 64.3 67.0 69.3 72.5 73.8 73.0 69.9

4800 52.0 54.0 56.0 59.7 63.0 66.0 68.5 70.6 73.3 73.7 71.8 67.3

5000 53.7 55.8 57.7 61.4 64.7 67.5 69.9 71.7 73.7 73.3 70.1 63.9

5200 55.3 57.4 59.4 63.0 66.2 68.9 71.0 72.6 73.8 72.3 67.7

5400 57.0 59.0 61.0 64.6 67.6 70.1 72.0 73.3 73.6 70.9 64.8

5600 58.5 60.6 62.5 66.0 68.9 71.2 72.8 73.7 73.1 69.1

5800 60.0 62.0 63.9 67.3 70.0 72.1 73.3 73.8 72.2 66.7

6000 61.4 63.4 65.3 68.5 71.0 72.8 73.7 73.7 70.9 63.9

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.

The Driving Force in Power Transmission. Page 85

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

Page 86 The Gates Rubber Company

Long Length Belting —continued

PowerGrip GT—Long Length Belting

PowerGrip HTD—Long Length Belting

PowerGrip HTD Belting—Fiberglass Tensile

3mm—5mm—8mm—14mm Pitch

Part

No.

Product

No.

Width

(mm)

Net Wt./ft.

(lb)

LL3M06 9308-0044 6 0.01

LL3M09 9308-0003 9 0.01

LL3M15 9308-0084 15 0.01

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

PowerGrip HTD Belting—Steel Tensile

14mm Pitch

Part

No.

Product

No.

Width

(mm)

Net Wt./ft.

(lb)

LL14M40ST 9308-10016 40 0.76

LL14M55ST 9308-10051 55 1.02

LL14M85ST 9308-10084 85 1.51

PowerGrip GT—Fiberglass Tensile

2mm—3mm—5mm—8mm Pitch

Part

No.

Product

No.

Width

(mm)

Net Wt./ft.

(lb)

LL2MR04 9396-0033 4 0.01

LL2MR06 9396-0009 6 0.01

LL2MR09 9396-0011 9 0.01

LL3MR06 9396-0002 6 0.01

LL3MR09 9396-0012 9 0.01

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 GT—Steel Tensile

5mm—8mm Pitch

Part

No.

Product

No.

Width

(mm)

Net Wt./ft.

(lb)

LL5MR15ST 9308-10043 15 0.18

LL5MR25ST 9308-40417 25 0.23

LL8MR20ST 9308-10049 20 0.29

LL8MR30ST 9308-10050 30 0.37

LL8MR50ST 9308-40433 50 0.53

The Driving Force in Power Transmission. Page 87

Long Length Belting —continued

PowerGrip Timing—Long Length Belting

Mini-Pitch (0.080″/MXL)—Fiberglass Tensile

Part

No.

Product

No.

Width

(in)

Net Wt./ft.

(lb)

LL025MXL 9314-2020 140.01

LL037MXL 9314-2014 380.02

LL050MXL 9314-2038 120.02

1/5″Pitch (0.200″/XL)—Fiberglass Tensile

Part

No.

Product

No.

Width

(in)

Net Wt./ft.

(lb)

LL025XL 9314-0001 140.01

LL037XL 9314-0002 380.01

LL050XL 9314-2012 120.03

LL075XL 9314-2090 340.04

1/5″Pitch (0.200″/XL)—Steel Tensile

Part

No.

Product

No.

Width

(in)

Net Wt./ft.

(lb)

LL025XLST 9314-10028 140.06

LL037XLST 9314-10029 380.07

LL050XLST 9314-10030 120.08

3/8″Pitch (0.375″/L)—Fiberglass Tensile

Part

No.

Product

No.

Width

(in)

Net Wt./ft.

(lb)

LL037L 9314-2089 380.02

LL050L 9314-0004 120.02

LL075L 9314-0007 340.04

LL100L 9314-0015 1 0.05

3/8″Pitch (0.375″/L)—Steel Tensile

Part

No.

Product

No.

Width

(in)

Net Wt./ft.

(lb)

LL050LST 9314-10035 120.16

LL075LST 9314-10036 340.19

1/2″Pitch (0.500″/H)—Steel Tensile

Part

No.

Product

No.

Width

(in)

Net Wt./ft.

(lb)

LL075HST 9314-10011 340.22

LL100HST 9314-10037 1 0.25

1/2″Pitch (0.500″/H)—Fiberglass Tensile

Part

No.

Product

No.

Width

(in)

Net Wt./ft.

(lb)

LL050H 9314-0003 120.04

LL075H 9314-0006 340.06

LL100H 9314-0008 1 0.12

LL150H 9314-0017 1120.12

LL200H 9314-0021 2 0.16

LL300H 9314-0025 3 0.24

Long Length Belting —continued

Synchro-Power PolyUrethane Long Length Belting

*Stock size. All others are Standard/Non-Stock product.

Page 88 The Gates Rubber Company

T5 Pitch

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U6T5LL 6* .01

U8T5LL 8 .01

U10T5LL 10* .02

U12T5LL 12 .02

U16T5LL 16* .03

U20T5LL 20 .03

U25T5LL 25* .04

U32T5LL 32* .05

U50T5LL 50* .08

AT5 Pitch

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U6AT5LL 6* .01

U10AT5LL 10* .02

U16AT5LL 16* .03

U20AT5LL 20* .04

U25AT5LL 25* .05

U32AT5LL 32* .06

U50AT5LL 50* .10

T10 Pitch

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U12T10LL 12 .04

U16T10LL 16* .05

U20T10LL 20 .07

U25T10LL 25* .08

U32T10LL 32* .11

U40T10LL 40 .13

U50T10LL 50* .16

U75T10LL 75* .25

U100T10LL 100* .33

AT10 Pitch

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U16AT10LL 16* .06

U20AT10LL 20 .08

U25AT10LL 25* .10

U32AT10LL 32* .13

U40AT10LL 40 .16

U50AT10LL 50* .20

U75AT10LL 75 .30

U100AT10LL 100 .40

T20 Pitch

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U25T10LL 25* .13

U32T20LL 32* .17

U50T20LL 50* .27

U75T20LL 75* .40

U100T20LL 100* .54

AT20 Pitch

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U25AT20LL 25 .17

U32AT20LL 32 .22

U50AT20LL 50 .34

U75AT20LL 75 .50

U100AT20LL 100 .67

U120AT20LL 120* .81

U150AT20LL 150* 1.01

Long Length Belting —continued

Synchro-Power PolyUrethane Long Length Belting — continued

*Stock size. All others are Standard/Non-Stock product.

The Driving Force in Power Transmission. Page 89

14mm Pitch HTD

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U25MTD14MLL 25 .19

U40MTD14MLL 40 .30

U55MTD14MLL 55 .41

U85MTD14MLL 85 .64

U100MTD14MLL 100 .75

5mm Pitch HTD

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U10MTD5MLL 10 .03

U15MTD5MLL 15 .04

U25MTD5MLL 25 .07

U50MTD5MLL 50 .13

8mm Pitch HTD

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U10MTD8MLL 10 .04

U15MTD8MLL 15 .06

U20MTD8MLL 20 .08

U30MTD8MLL 30 .13

U50MTD8MLL 50 .21

U85MTD8MLL 85 .36

U100MTD8MLL 100 .42

1/2″Pitch (0.500″/H)

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U.50INH LL .500* .02

U.75INH LL .750* .04

U1.00INH LL 1.000* .05

U1.50INH LL 1.500* .07

U2.00INH LL 2.000* .09

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

1/5″Pitch (0.200″/XL)

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U.25INXL LL .250 .01

U.31INXL LL .310 .01

U.375INXL LL .375 .01

U.50INXL LL .500 .02

U.75INXL LL .750 .03

U1.00INXL LL 1.000 .03

U2.00INXL LL 2.000 .07

3/8″Pitch (0.375″/L)

Part

No.

Width

(mm)

Net Wt./ft.

(lb)

U.375INL LL .375* .02

U.50INL LL .500* .02

U.75INL LL .750* .03

U1.00INL LL 1.000* .04

U1.50INL LL 1.500 .06

U2.00INL LL 2.000 .08

Long Length Belting Specifications

The available standard pitches, with belt dimensions, constructions, and allowable working tensions (Ta), are shown below.

Page 90 The Gates Rubber Company

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

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

Long Length Belting Specifications —continued

The Driving Force in Power Transmission. Page 91

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 HTD Belting

3M Pitch - Fiberglass Tensile Cord

Belt Width (mm) 6 9 15

Ta(lb) 20.7 34.4 61.4

PowerGrip Timing Belting

XL Pitch - Fiberglass Tensile Cord

Belt Width (in) 0.250 0.375 0.500

Ta(lb) 6.3 9.8 14.4

XL Pitch - Steel Tensile Cord

Belt Width (in) 0.250 0.375 0.500

Ta(lb) 7.8 12.2 17.8

.200 in

.05 in

.091 in

Long Length Belting Specifications —continued

Page 92 The Gates Rubber Company

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

Long Length Belting Specifications —continued

The Driving Force in Power Transmission. Page 93

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

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 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.

The Driving Force in Power Transmission. Page 95

8mm Pitch PowerGrip GT2 TwinPower Stock Belt Lengths

Part No.

Pitch Length

No. of Teeth(mm) (in)

TP840-8MGT 840 33.08 105

TP880-8MGT 880 34.65 110

TP920-8MGT 920 36.23 115

TP960-8MGT 960 37.80 120

TP1040-8MGT 1040 40.95 130

TP1120-8MGT 1120 44.10 140

TP1200-8MGT 1200 47.25 150

TP1224-8MGT 1224 48.20 153

TP1280-8MGT 1280 50.40 160

TP1440-8MGT 1440 56.70 180

TP1600-8MGT 1600 63.00 200

Part No.

Pitch Length

No. of Teeth(mm) (in)

TP1760-8MGT 1760 69.30 220

TP1800-8MGT 1800 70.88 225

TP2000-8MGT 2000 78.75 250

TP2200-8MGT 2200 86.63 275

TP2400-8MGT 2400 94.50 300

TP2600-8MGT 2600 102.38 325

TP2800-8MGT 2800 110.25 350

TP3048-8MGT 3048 120.02 381

TP3280-8MGT 3280 129.15 410

TP3600-8MGT 3600 141.75 450

TP4400-8MGT 4400 173.25 550

8M PowerGrip GT2 Twin Power — Reference Dimensions

1.37mm 8.18mm

8mm

.054 in. .322 in.

.315 in.

8M GT2 TwinPower Stock Belt Widths

Belt Width

Code

Belt Width

(mm) (in)

20 20 0.787

30 30 1.181

50 50 1.969

85 85 3.346

PowerGrip Twin Power Belts —continued

Page 96 The Gates Rubber Company

14mm Pitch PowerGrip GT2 TwinPower Stock Belt Lengths

Part No.

Pitch Length

No. of Teeth(mm) (in)

TP966-14MGT 966 38.03 69

TP1190-14MGT 1190 46.85 85

TP1400-14MGT 1400 55.12 100

TP1610-14MGT 1610 63.38 115

TP1778-14MGT 1778 70.00 127

TP1890-14MGT 1890 74.41 135

TP2100-14MGT 2100 82.67 150

TP2310-14MGT 2310 90.94 165

TP2450-14MGT 2450 96.45 175

Part No.

Pitch Length

No. of Teeth(mm) (in)

TP2590-14MGT 2590 101.96 185

TP2800-14MGT 2800 110.23 200

TP3150-14MGT 3150 124.01 225

TP3360-14MGT 3360 132.28 240

TP3500-14MGT 3500 137.79 250

TP3850-14MGT 3850 151.57 275

TP4326-14MGT 4326 170.31 309

TP4578-14MGT 4578 180.23 327

14MGT2 TwinPower Stock Belt Widths

Belt Width

Code

Belt Width

(mm) (in)

40 40 1.575

55 55 2.165

85 85 3.346

115 115 4.528

170 170 6.693

1/5″(0.200″) Pitch XL PowerGrip TwinPower Timing Stock Belt Lengths

Part No.

Pitch Length

(in) No. of Teeth

TP140XL 14.00 70

TP150XL 15.00 75

TP160XL 16.00 80

TP170XL 17.00 85

TP180XL 18.00 90

TP190XL 19.00 95

TP200XL 20.00 100

TP210XL 21.00 105

TP220XL 22.00 110

TP230XL 23.00 115

Part No.

Pitch Length

(in) No. of Teeth

TP240XL 24.00 120

TP250XL 25.00 125

TP260XL 26.00 130

TP270XL 27.00 135

TP280XL 28.00 140

TP290XL 29.00 145

TP300XL 30.00 150

TP310XL 31.00 155

TP330XL 33.00 165

TP340XL 34.00 170

XL TwinPower Stock Belt Widths

Belt Width

Code

Belt Width

(in)

025 0.250

037 0.375

XL PowerGrip Twin Power — Reference Dimensions

.51mm 3.05mm

5.08mm

.020 in. .120 in.

.200 in.

14M PowerGrip GT2 — Reference Dimensions

2.8mm 15mm

14mm

.110 in. .590 in.

.552 in.

PowerGrip Twin Power Belts —continued

The Driving Force in Power Transmission. Page 97

3/8″Pitch (0.375″) Pitch L PowerGrip TwinPower Timing Stock Belt Lengths

Part No.

Pitch Length

(in) No. of Teeth

TP150L 15.00 40

TP165L 16.50 44

TP187L 18.75 50

TP195L 19.50 52

TP210L 21.00 56

TP225L 22.50 60

TP240L 24.00 64

TP255L 25.50 68

TP270L 27.00 72

TP285L 28.50 76

TP300L 30.00 80

TP322L 32.25 86

Part No.

Pitch Length

(in) No. of Teeth

TP345L 34.50 92

TP367L 36.75 98

TP390L 39.00 104

TP420L 42.00 112

TP450L 45.00 120

TP480L 48.00 128

TP510L 51.00 136

TP540L 54.00 144

TP600L 60.00 160

TP660L 66.00 176

TP817L 81.75 218

L TwinPower Stock Belt Widths

Belt Width

Code

Belt Width

(in)

050 0.500

075 0.750

100 1.000

L PowerGrip Twin Power — Reference Dimensions

.76mm 4.57mm

9.53mm

.030 in. .180 in.

.375 in.

1/2″(0.500″) Pitch H PowerGrip TwinPower Timing Stock Belt Lengths

Part No.

Pitch Length

(in) No. of Teeth

TP240H 24.00 48

TP270H 27.00 54

TP300H 30.00 60

TP330H 33.00 66

TP350H 35.00 70

TP360H 36.00 72

TP390H 39.00 78

TP400H 40.00 80

TP420H 42.00 84

TP450H 45.00 90

TP480H 48.00 96

TP510H 51.00 102

TP540H 54.00 108

TP570H 57.00 114

Part No.

Pitch Length

(in) No. of Teeth

TP600H 60.00 120

TP630H 63.00 126

TP660H 66.00 132

TP700H 70.00 140

TP750H 75.00 150

TP800H 80.00 160

TP850H 85.00 170

TP900H 90.00 180

TP1000H 100.00 200

TP1100H 110.00 220

TP1250H 125.00 250

TP1400H 140.00 280

TP1700H 170.00 340

H TwinPower Stock Belt Widths

Belt Width

Code

Belt Width

(in)

075 0.750

100 1.000

150 1.500

200 2.000

300 3.000

H PowerGrip Twin Power — Reference Dimensions

1.37mm 5.94mm

12.70mm

.054 in. .234 in.

.500 in.

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.

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 de-

signed 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 sprock-

ets may be unloaded and act only as an idler. It may be pos-

sible 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.

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.

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.

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 Se-

lection 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 narrow-

est, 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 Horse-

power Rating is calculated by performing the calcula-

tion 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 Horse-

power 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 Horse-

power Rating for wider belt widths, multiply the Modified

Twin Power Horsepower Rating by the appropriate Width

Correction Factor shown below.

Pitch

Belt Width

(mm)

Width Correction

Factor

8M PowerGrip GT2 Twin Power

20 1.00

30 1.57

50 2.73

85 4.75

14M PowerGrip GT2 Twin Power

40 1.00

55 1.50

85 2.50

115 3.50

170 5.32

Page 98 The Gates Rubber Company

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:

Teeth in

Mesh =Angle of Sprocket Contact

360

Number of

Sprocket

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.

4. Repeat this procedure for each sprocket to locate the crit-

ical 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 sur-

faces and tensioning requirements. Center distance adjust-

ment 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

Page 100 The Gates Rubber Company

Type A

Type AF

F-CL

O.D.

ME D

Type A

F-CL

O.D.

ME D

Type C

Type CF

F-CL

O.D.B

Type D

Type DF

F-CL

O.D.B

Type 6

Type 6F

F-CL

O.D. B

5mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

The Driving Force in Power Transmission. Page 101

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P18-5MGT-15 PB 18 1.128 1.083 1.385 6F-1 — 0.68 0.69 1.25 0.36 0.89 0 0.45 MPB 0.250 0.375 0.3 0.0003 S

P19-5MGT-15 PB 19 1.191 1.146 1.420 6F-1 — 0.88 0.69 1.25 0.36 0.89 0 0.45 MPB 0.250 0.437 0.3 0.0003 S

P20-5MGT-15 PB 20 1.253 1.208 1.510 6F-1 — 0.90 0.69 1.25 0.36 0.89 0 0.45 MPB 0.250 0.500 0.3 0.0004 S

P21-5MGT-15 PB 21 1.316 1.271 1.530 6F-1 — 1.09 0.69 1.25 0.36 0.89 0 0.45 MPB 0.250 0.690 0.4 0.0005 S

P22-5MGT-15 PB 22 1.379 1.334 1.530 6F-1 — 1.09 0.69 1.28 0.39 0.89 0 0.45 MPB 0.250 0.655 0.4 0.0006 S

P23-5MGT-15 PB 23 1.441 1.396 1.660 6F-1 — 1.15 0.69 1.28 0.39 0.89 0 0.45 MPB 0.375 0.625 0.5 0.0008 S

P24-5MGT-15 PB 24 1.504 1.459 1.780 6F-1 — 1.18 0.69 1.28 0.39 0.89 0 0.45 MPB 0.375 0.625 0.5 0.0009 S

P25-5MGT-15 PB 25 1.566 1.521 1.780 6F-1 — 1.18 0.69 1.28 0.39 0.89 0 0.45 MPB 0.375 0.625 0.6 0.001 S

P26-5MGT-15 PB 26 1.629 1.584 1.900 6F-1 — 1.21 0.69 1.28 0.39 0.89 0 0.45 MPB 0.375 0.687 0.6 0.001 S

P28-5MGT-15 PB 28 1.754 1.709 2.020 6F-1 — 1.37 0.69 1.34 0.45 0.89 0 0.45 MPB 0.500 0.750 0.7 0.001 S

P30-5MGT-15 PB 30 1.880 1.835 2.130 6F-1 — 1.53 0.69 1.34 0.45 0.89 0 0.45 MPB 0.500 0.937 0.8 0.002 S

P32-5MGT-15 PB 32 2.005 1.960 2.130 6F-1 — 1.55 0.69 1.34 0.45 0.89 0 0.45 MPB 0.500 0.937 0.9 0.002 S

P34-5MGT-15 PB 34 2.130 2.085 2.375 6F-1 — 1.69 0.69 1.34 0.45 0.89 0 0.45 MPB 0.500 1.000 1.1 0.003 S

P36-5MGT-15 36 2.256 2.211 2.380 AF-1 — — 0.69 0.88 0 0.88 0 0.45 1108 0.500 1.125 0.5 0.002 SS

P36-5MGT-15 PB 36 2.256 2.211 2.380 6F-1 — 1.69 0.69 1.34 0.45 0.89 0 0.45 MPB 0.500 1.000 1.1 0.004 S

P38-5MGT-15 38 2.381 2.336 2.610 AF-1 — — 0.69 0.88 0 0.88 0 0.45 1108 0.500 1.125 0.6 0.003 SS

P38-5MGT-15 PB 38 2.381 2.336 2.610 6F-1 — 1.96 0.69 1.34 0.45 0.89 0 0.45 MPB 0.500 1.250 1.6 0.005 S

P40-5MGT-15 40 2.506 2.461 2.730 AF-1 — — 0.69 0.88 0 0.88 0 0.45 1108 0.500 1.125 0.7 0.004 SS

P40-5MGT-15 PB 40 2.506 2.461 2.730 6F-1 — 2.09 0.69 1.38 0.49 0.89 0 0.45 MPB 0.500 1.312 1.6 0.006 S

P44-5MGT-15 44 2.757 2.712 3.090 AF-1 — — 0.69 0.88 0 0.88 0 0.45 1108 0.500 1.125 0.9 0.007 SS

P45-5MGT-15 PB 45 2.820 2.775 3.090 6F-1 — 2.34 0.69 1.38 0.49 0.89 0 0.45 MPB 0.500 1.500 2.1 0.010 S

P48-5MGT-15 48 3.008 2.963 3.330 BF-1 — 2.69 0.69 1.00 0 0.88 0.13 0.45 1210 0.500 1.250 0.0 0.010 SS

P50-5MGT-15 PB 50 3.133 3.088 3.330 6F-1 — 2.65 0.69 1.38 0.49 0.89 0 0.45 MPB 0.500 1.750 2.6 0.015 S

P52-5MGT-15 52 3.258 3.213 2.570 BF-1 — 2.88 0.69 1.00 0 0.88 0.13 0.45 1210 0.500 1.250 1.3 0.015 SS

P56-5MGT-15 56 3.509 3.464 3.810 BF-1 — 3.07 0.69 1.00 0 0.88 0.13 0.45 1610 0.500 1.688 1.4 0.019 SS

P60-5MGT-15 60 3.760 3.715 4.040 BF-1 — 3.25 0.69 1.00 0 0.88 0.13 0.45 1610 0.500 1.688 1.7 0.026 SS

P64-5MGT-15 64 4.010 3.965 4.140 BF-1 — 3.25 0.69 1.00 0 0.88 0.13 0.45 1610 0.500 1.688 2.1 0.035 SS

P68-5MGT-15 68 4.261 4.216 4.520 BF-1 — 3.25 0.69 1.00 0 0.88 0.13 0.45 1610 0.500 1.688 2.4 0.045 SS

P72-5MGT-15 72 4.511 4.466 4.670 BF-1 — 3.25 0.69 1.00 0 0.88 0.13 0.45 1610 0.500 1.688 2.8 0.058 SS

P80-5MGT-15 80 5.013 4.968 — B-1 — 3.25 — 1.00 0 0.89 0.11 0.45 1610 0.500 1.688 3.7 0.090 SS

P90-5MGT-15 90 5.639 5.594 — B-1 — 3.25 — 1.00 0 0.89 0.11 0.45 1610 0.500 1.688 4.9 0.147 SS

P112-5MGT-15 112 7.018 6.973 — B-1 — 4.38 — 1.25 0 0.89 0.36 0.45 2012 0.500 2.125 8.3 0.374 SS

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

5mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

Page 102 The Gates Rubber Company

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P18-5MGT-25 PB 18 1.128 1.083 1.385 6F-1 — 0.68 1.08 1.65 0.37 1.28 0 0.64 MPB 0.250 0.375 0.4 0.0003 S

P19-5MGT-25 PB 19 1.191 1.146 1.420 6F-1 — 0.88 1.08 1.65 0.37 1.28 0 0.64 MPB 0.250 0.437 0.4 0.0004 S

P20-5MGT-25 PB 20 1.253 1.208 1.510 6F-1 — 0.90 1.08 1.65 0.37 1.28 0 0.64 MPB 0.250 0.500 0.5 0.0005 S

P21-5MGT-25 PB 21 1.316 1.271 1.530 6F-1 — 1.09 1.08 1.65 0.37 1.28 0 0.64 MPB 0.250 0.690 0.5 0.0006 S

P22-5MGT-25 PB 22 1.379 1.334 1.530 6F-1 — 1.09 1.08 1.68 0.40 1.28 0 0.64 MPB 0.250 0.655 0.6 0.0007 S

P23-5MGT-25 PB 23 1.441 1.396 1.660 6F-1 — 1.15 1.08 1.68 0.40 1.28 0 0.64 MPB 0.375 0.625 0.7 0.0009 S

P24-5MGT-25 PB 24 1.504 1.459 1.780 6F-1 — 1.18 1.08 1.68 0.40 1.28 0 0.64 MPB 0.375 0.625 0.8 0.001 S

P25-5MGT-25 PB 25 1.566 1.521 1.780 6F-1 — 1.18 1.08 1.68 0.40 1.28 0 0.64 MPB 0.375 0.625 0.8 0.001 S

P26-5MGT-25 PB 26 1.629 1.584 1.900 6F-1 — 1.21 1.08 1.68 0.40 1.28 0 0.64 MPB 0.375 0.687 0.8 0.001 S

P28-5MGT-25 PB 28 1.754 1.709 2.020 6F-1 — 1.37 1.08 1.73 0.45 1.28 0 0.64 MPB 0.375 0.750 1.0 0.002 S

P30-5MGT-25 PB 30 1.880 1.835 2.130 6F-1 — 1.53 1.08 1.73 0.45 1.28 0 0.64 MPB 0.500 0.937 1.1 0.002 S

P32-5MGT-25 PB 32 2.005 1.960 2.125 6F-1 — 1.55 1.08 1.73 0.45 1.28 0 0.64 MPB 0.500 .937 1.2 0.003 S

P34-5MGT-25 PB 34 2.130 2.085 2.375 6F-1 — 1.69 1.08 1.73 0.45 1.28 0 0.64 MPB 0.500 1.000 1.4 0.004 S

P36-5MGT-25 36 2.256 2.211 2.375 AF-1 1.55 — 1.08 0.88 0 1.29 0.41 0.64 1108 0.500 1.125 0.7 0.003 SS

P36-5MGT-25 PB 36 2.256 2.211 2.380 6F-1 — 1.69 1.08 1.73 0.45 1.28 0 0.64 MPB 0.500 1.000 1.6 0.005 S

P38-5MGT-25 38 2.381 2.336 2.613 AF-1 1.80 — 1.08 0.88 0 1.29 0.41 0.64 1108 0.500 1.125 0.7 0.004 SS

P38-5MGT-25 PB 38 2.381 2.336 2.610 6F-1 — 1.96 1.08 1.73 0.45 1.28 0 0.64 MPB 0.500 1.250 1.9 0.007 S

P40-5MGT-25 40 2.506 2.461 2.733 AF-1 1.90 — 1.08 0.88 0 1.29 0.41 0.64 1108 0.500 1.125 0.8 0.006 SS

P40-5MGT-25 PB 40 2.506 2.461 2.730 6F-1 — 2.09 1.08 1.78 0.50 1.28 0 0.64 MPB 0.500 1.312 2.2 0.009 S

P44-5MGT-25 44 2.757 2.712 3.090 AF-1 2.20 — 1.08 0.88 0 1.29 0.41 0.64 1108 0.500 1.125 1.1 0.009 SS

P45-5MGT-25 PB 45 2.820 2.775 3.090 6F-1 — 2.34 1.08 1.78 0.50 1.28 0 0.64 MPB 0.500 1.500 2.7 0.014 S

P48-5MGT-25 48 3.008 2.963 3.328 AF-1 2.36 — 1.08 1.00 0 1.28 0.28 0.64 1210 0.500 1.250 1.2 0.012 SS

P50-5MGT-25 PB 50 3.133 3.088 3.330 6F-1 — 2.65 1.08 1.78 0.50 1.28 0 0.64 MPB 0.500 1.750 3.4 0.022 S

P52-5MGT-25 52 3.258 3.213 3.566 AF-1 2.62 — 1.08 1.00 0 1.28 0.28 0.64 1210 0.500 1.250 1.6 0.018 SS

P56-5MGT-25 56 3.509 3.464 3.805 AF-1 2.75 — 1.08 1.00 0 1.28 0.28 0.64 1610 0.500 1.688 1.6 0.024 SS

P60-5MGT-25 60 3.760 3.715 4.044 AF-1 2.90 — 1.08 1.00 0 1.28 0.28 0.64 1610 0.500 1.688 2.1 0.033 SS

P64-5MGT-25 64 4.010 3.965 4.170 AF-1 3.37 — 1.08 1.00 0 1.28 0.28 0.64 1610 0.500 1.688 2.4 0.042 G

P68-5MGT-25 68 4.261 4.216 4.520 AF-1 2.57 — 1.08 1.25 0.03 1.28 0 0.64 2012 0.500 2.125 2.7 0.057 G

P72-5MGT-25 72 4.511 4.466 4.670 AF-1 2.57 — 1.08 1.25 0.03 1.28 0 0.64 2012 0.500 2.125 3.3 0.075 G

P80-5MGT-25 80 5.013 4.968 — A-1 2.57 — 1.08 1.25 0.03 1.28 0 0.64 2012 0.500 2.125 4.5 0.121 G

P90-5MGT-25 90 5.639 5.594 — A-1 2.57 — 1.08 1.25 0.03 1.28 0 0.64 2012 0.500 2.125 6.2 0.203 G

P112-5MGT-25 112 7.018 6.973 — A-1 2.57 — 1.08 1.25 0.03 1.28 0 0.64 2012 0.500 2.125 10.7 0.510 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

8mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

The Driving Force in Power Transmission. Page 103

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P22-8MGT-20 22 2.206 2.152 2.559 AF-1 1.55 — 0.85 0.88 0 1.14 0.26 0.56 1108 0.500 1.125 0.5 0.002 D

P24-8MGT-20 24 2.406 2.352 2.756 AF-1 1.55 — 0.85 0.88 0 1.14 0.26 0.56 1108 0.500 1.125 0.7 0.004 D

P26-8MGT-20 26 2.607 2.553 2.953 AF-1 1.55 — 0.85 0.88 0 1.14 0.26 0.56 1108 0.500 1.125 0.9 0.006 D

P28-8MGT-20 28 2.807 2.753 3.150 AF-1 1.10 — 0.85 0.88 0.26 1.14 0 0.56 1108 0.500 1.125 1.2 0.009 D

P30-8MGT-20 30 3.008 2.954 3.346 AF-1 1.20 — 0.85 1.00 0.13 1.13 0 0.56 1210 0.500 1.250 1.2 0.011 D

P32-8MGT-20 32 3.208 3.154 3.543 AF-1 1.91 — 0.85 1.00 0 1.13 0.13 0.56 1210 0.500 1.250 1.4 0.015 D

P34-8MGT-20 34 3.409 3.355 3.819 AF-1 1.60 — 0.85 1.00 0.13 1.13 0 0.56 1610 0.500 1.688 1.4 0.018 D

P36-8MGT-20 36 3.609 3.555 3.937 AF-1 1.60 — 0.85 1.00 0.13 1.13 0 0.56 1610 0.500 1.688 1.7 0.024 D

P38-8MGT-20 38 3.810 3.756 4.134 AF-1 1.60 — 0.85 1.00 0.13 1.13 0 0.56 1610 0.500 1.688 2.0 0.032 G

P40-8MGT-20 40 4.010 3.956 4.331 AF-1 1.60 — 0.85 1.00 0.13 1.13 0 0.56 1610 0.500 1.688 2.4 0.040 G

P44-8MGT-20 44 4.411 4.357 4.764 BF-1 — 3.88 0.85 1.25 0 1.12 0.13 0.56 2012 0.500 2.125 2.7 0.058 G

P48-8MGT-20 48 4.812 4.758 5.157 BF-1 — 4.25 0.85 1.25 0 1.12 0.13 0.56 2012 0.500 2.125 3.7 0.091 G

P56-8MGT-20 56 5.614 5.560 5.945 BF-1 — 4.38 0.85 1.25 0 1.12 0.13 0.56 2012 0.500 2.125 5.6 0.176 G

P64-8MGT-20 64 6.416 6.362 6.772 BF-1 — 4.38 0.85 1.25 0 1.12 0.13 0.56 2012 0.500 2.125 7.7 0.307 G

P72-8MGT-20 72 7.218 7.164 7.598 BF-1 — 4.38 0.85 1.25 0 1.12 0.13 0.56 2012 0.500 2.125 10.2 0.499 G

P80-8MGT-20 80 8.020 7.966 8.386 BF-1 — 4.88 0.85 1.75 0 1.12 0.63 0.56 2517 0.500 2.688 13.1 0.772 G

P90-8MGT-20 90 9.023 8.969 — C-2 7.90 4.88 — 1.75 0.31 1.13 0.31 0.59 2517 0.500 2.688 12.5 0.903 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

8mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

Page 104 The Gates Rubber Company

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P22-8MGT-30 22 2.206 2.152 2.559 AF-1 1.55 — 1.22 0.88 0 1.50 0.63 0.75 1108 0.500 1.125 0.6 0.003 D

P24-8MGT-30 24 2.406 2.352 2.756 AF-1 1.55 — 1.22 0.88 0 1.50 0.63 0.75 1108 0.500 1.125 0.9 0.005 D

P26-8MGT-30 26 2.607 2.553 2.953 AF-1 1.75 — 1.22 0.88 0 1.50 0.63 0.75 1108 0.500 1.125 1.1 0.008 D

P28-8MGT-30 28 2.807 2.753 3.150 AF-1 1.55 — 1.22 0.88 0 1.50 0.63 0.75 1108 0.500 1.125 1.5 0.012 G

P30-8MGT-30 30 3.008 2.954 3.346 AF-1 1.91 — 1.22 1.00 0 1.50 0.50 0.75 1210 0.500 1.250 1.5 0.015 D

P32-8MGT-30 32 3.208 3.154 3.543 AF-1 2.19 — 1.22 1.00 0 1.50 0.50 0.75 1210 0.500 1.250 1.7 0.019 D

P34-8MGT-30 34 3.409 3.355 3.819 AF-1 2.29 — 1.22 1.00 0 1.50 0.50 0.75 1610 0.500 1.688 1.8 0.024 D

P36-8MGT-30 36 3.609 3.555 3.937 AF-1 2.29 — 1.22 1.00 0 1.50 0.50 0.75 1610 0.500 1.688 2.2 0.032 D

P38-8MGT-30 38 3.810 3.756 4.134 AF-1 2.53 — 1.22 1.00 0 1.50 0.50 0.75 1610 0.500 1.688 2.5 0.040 D

P40-8MGT-30 40 4.010 3.956 4.331 AF-1 3.00 — 1.22 1.25 0 1.50 0.25 0.75 2012 0.500 2.125 2.3 0.045 G

P44-8MGT-30 44 4.411 4.357 4.764 AF-1 3.50 — 1.22 1.25 0 1.50 0.25 0.75 2012 0.500 2.125 3.2 0.071 G

P48-8MGT-30 48 4.812 4.758 5.157 AF-1 3.80 — 1.22 1.25 0 1.50 0.25 0.75 2012 0.500 2.125 4.2 0.106 G

P56-8MGT-30 56 5.614 5.560 5.945 AF-1 4.60 — 1.22 1.25 0 1.50 0.25 0.75 2012 0.500 2.125 6.3 0.208 G

P64-8MGT-30 64 6.416 6.362 6.772 BF-1 — 4.88 1.22 1.75 0 1.50 0.25 0.75 2517 0.500 2.688 9.5 0.404 G

P72-8MGT-30 72 7.218 7.164 7.598 BF-1 — 4.88 1.22 1.75 0 1.50 0.25 0.75 2517 0.500 2.688 12.8 0.659 G

P80-8MGT-30 80 8.020 7.966 8.386 BF-1 — 4.88 1.22 1.75 0 1.50 0.25 0.75 2517 0.500 2.688 16.5 1.019 G

P90-8MGT-30 90 9.023 8.969 — C-2 7.90 4.88 — 1.75 0.13 1.50 0.12 0.51 2517 0.500 2.688 21.6 1.65 G

P112-8MGT-30 112 11.229 11.175 — C-2 10.00 4.88 — 1.75 0.13 1.50 0.12 0.51 2517 0.500 2.688 25.4 3.42 G

P144-8MGT-30 144 14.437 14.383 — C-2 13.20 4.88 — 1.88 0.38 1.50 0 0.76 2517 0.500 2.688 31.0 6.014 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

8mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

The Driving Force in Power Transmission. Page 105

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P28-8MGT-50 PB 28 2.807 2.753 3.207 6F-1 1.80 2.34 2.10 2.50 0.62 2.38 0.50 1.19 MPB 0.500 1.500 3.7 0.024 D

P30-8MGT-50 30 3.008 2.954 3.346 AF-1 2.00 — 2.10 1.00 0 2.38 1.38 1.19 1210 0.500 1.250 2.2 0.023 D

P32-8MGT-50 32 3.208 3.154 3.543 AF-1 2.36 — 2.10 1.00 0 2.38 1.38 1.19 1210 0.500 1.250 2.3 0.028 D

P34-8MGT-50 34 3.409 3.355 3.819 AF-1 2.57 — 2.10 1.00 0 2.38 1.38 1.19 1610 0.500 1.688 4.0 0.045 D

P36-8MGT-50 36 3.609 3.555 3.937 AF-1 2.77 — 2.10 1.00 0 2.38 1.38 1.19 1610 0.500 1.688 2.7 0.043 G

P38-8MGT-50 38 3.810 3.756 4.134 AF-1 2.97 — 2.10 1.00 0 2.38 1.38 1.19 1610 0.500 1.688 3.1 0.054 G

P40-8MGT-50 40 4.010 3.956 4.331 AF-1 2.97 — 2.10 1.25 0 2.38 1.13 1.19 2012 0.500 2.125 3.5 0.068 D

P44-8MGT-50 44 4.411 4.357 4.764 AF-1 3.50 — 2.10 1.25 0 2.38 1.13 1.19 2012 0.500 2.125 4.3 0.099 G

P48-8MGT-50 48 4.812 4.758 5.157 AF-1 3.80 — 2.10 1.25 0 2.38 1.13 1.19 2012 0.500 2.125 5.5 0.149 G

P56-8MGT-50 56 5.614 5.560 5.945 AF-1 4.60 — 2.10 1.75 0 2.38 0.63 1.19 2517 0.500 2.688 8.1 0.295 G

P64-8MGT-50 64 6.416 6.362 6.772 AF-1 5.40 — 2.10 1.75 0 2.38 0.63 1.19 2517 0.500 2.688 11.7 0.527 G

P72-8MGT-50 72 7.218 7.164 7.598 AF-1 6.20 — 2.10 1.75 0 2.38 0.63 1.19 2517 0.500 2.688 15.7 0.862 G

P80-8MGT-50 80 8.020 7.966 8.386 AF-1 6.90 — 2.10 1.75 0 2.38 0.63 1.19 2517 0.500 2.688 20.3 1.343 G

P90-8MGT-50 90 9.023 8.969 — A-1 7.90 — — 2.00 0 2.38 0.38 1.19 3020 0.875 3.250 26.9 2.277 G

P112-8MGT-50 112 11.229 11.175 — A-2 10.00 — — 2.00 0 2.38 0.38 1.19 3020 0.875 3.250 29.8 3.746 G

P144-8MGT-50 144 14.437 14.383 — A-3 13.49 — — 2.00 0 2.39 0.39 1.19 3020 0.875 3.250 49.0 8.988 D

P192-8MGT-50 192 19.249 19.195 — A-3 18.00 — — 2.00 0 2.38 0.38 1.19 3020 0.875 3.250 108.0 32.21 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

8mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

Page 106 The Gates Rubber Company

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P34-8MGT-85 34 3.409 3.355 3.819 AF-1 2.52 — 3.47 1.50 0.75 3.75 1.50 1.88 1615 0.500 1.688 3.9 0.054 G

P36-8MGT-85 36 3.609 3.555 4.009 AF-1 2.72 — 3.47 1.50 0.75 3.75 1.50 1.88 1615 0.500 1.688 4.4 0.069 G

P38-8MGT-85 38 3.810 3.756 4.210 AF-1 3.00 — 3.47 1.00 0.63 2.75 1.12 2.50 1610 0.500 1.688 4.3 0.077 G

P40-8MGT-85 40 4.010 3.956 4.410 AF-1 3.12 — 3.47 1.25 1.25 3.75 1.25 1.88 2012 0.500 2.125 4.7 0.097 D

P44-8MGT-85 44 4.411 4.357 4.764 AF-1 3.50 — 3.47 1.25 1.25 3.75 1.25 1.88 2012 0.500 2.125 5.9 0.144 G

P48-8MGT-85 48 4.812 4.758 5.212 AF-1 3.80 — 3.47 1.25 1.25 3.75 1.25 1.88 2012 0.500 2.125 7.6 0.214 G

P56-8MGT-85 56 5.614 5.560 6.014 AF-1 4.60 — 3.47 1.75 0.81 3.75 1.19 1.88 2517 0.500 2.688 10.6 0.405 G

P64-8MGT-85 64 6.416 6.362 6.716 AF-1 5.40 — 3.47 1.75 0.59 3.75 1.41 1.88 2517 0.500 2.688 14.5 0.698 G

P72-8MGT-85 72 7.218 7.164 7.500 AF-1 6.20 — 3.47 2.00 0.88 3.76 0.88 1.88 3020 0.875 3.250 18.0 1.121 G

P80-8MGT-85 80 8.020 7.966 8.420 AF-1 7.20 — 3.47 2.00 0.50 3.75 1.25 1.88 3020 0.875 3.250 22.4 1.642 G

P90-8MGT-85 90 9.023 8.969 — A-1 7.90 — — 2.00 0.50 3.75 1.25 1.88 3020 0.875 3.250 31.5 2.846 G

P112-8MGT-85 112 11.229 11.175 — D-1 10.00 6.25 — 2.00 0.50 3.75 1.25 1.44 3020 0.875 3.250 33.2 4.621 G

P144-8MGT-85 144 14.437 14.383 — D-1 13.44 6.56 — 3.50 0 3.75 0.25 0.94 3535 1.188 3.938 54.1 11.06 G

P192-8MGT-85 192 19.249 19.195 — D-1 18.00 7.00 — 3.50 0.13 3.76 0.13 1.07 3535 1.188 3.938 125.0 39.63 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

14mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

The Driving Force in Power Transmission. Page 107

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P28-14MGT-40 28 4.912 4.802 5.560 AF-1 3.13 — 1.81 1.25 0 2.13 0.88 1.06 2012 0.500 2.125 5.9 0.153 G

P29-14MGT-40 29 5.088 4.978 5.560 AF-1 3.15 — 1.81 1.25 0 2.13 0.88 1.06 2012 0.500 2.125 6.6 0.181 G

P30-14MGT-40 30 5.263 5.153 6.125 AF-1 3.85 — 1.81 1.25 0 2.13 0.88 1.06 2012 0.500 2.125 6.5 0.193 G

P32-14MGT-40 32 5.614 5.504 6.125 AF-1 3.92 — 1.81 1.25 0 2.13 0.88 1.06 2012 0.500 2.125 8.0 0.265 G

P34-14MGT-40 34 5.965 5.855 6.500 AF-1 4.06 — 1.81 1.25 0 2.13 0.88 1.06 2012 0.500 2.125 9.4 0.349 G

P36-14MGT-40 36 6.316 6.206 6.875 AF-1 4.69 — 1.81 1.75 0 2.13 0.38 1.06 2517 0.500 2.688 10.5 0.444 G

P38-14MGT-40 38 6.667 6.557 7.219 AF-1 4.94 — 1.81 1.75 0 2.13 0.38 1.06 2517 0.500 2.688 12.2 0.565 G

P40-14MGT-40 40 7.018 6.908 7.500 AF-1 5.06 — 1.81 1.75 0 2.13 0.38 1.06 2517 0.500 2.688 14.2 0.713 G

P44-14MGT-40 44 7.720 7.610 8.343 AF-1 6.14 — 1.81 1.75 0 2.13 0.38 1.06 2517 0.500 2.688 17.6 1.046 G

P48-14MGT-40 48 8.421 8.311 8.937 AF-1 6.50 — 1.81 1.75 0 2.13 0.38 1.06 2517 0.500 2.688 22.0 1.527 G

P52-14MGT-40 52 9.123 9.013 9.687 AF-1 7.18 — 1.81 1.75 0 2.13 0.38 1.06 2517 0.500 2.688 26.5 2.126 G

P56-14MGT-40 56 9.825 9.715 10.375 AF-1 7.88 — 1.81 1.75 0 2.13 0.38 1.06 2517 0.500 2.688 31.3 2.878 G

P60-14MGT-40 60 10.527 10.417 11.062 AF-1 8.50 — 1.81 2.00 0 2.13 0.13 1.06 3020 0.875 3.250 28.9 3.177 G

P64-14MGT-40 64 11.229 11.119 11.750 AF-1 9.25 — 1.81 2.00 0 2.13 0.13 1.06 3020 0.875 3.250 31.0 3.872 G

P68-14MGT-40 68 11.930 11.820 12.500 DF-1 10.00 6.25 1.81 2.00 0 2.13 0.13 0.53 3020 0.875 3.250 31.3 4.446 G

P72-14MGT-40 72 12.632 12.522 13.187 DF-1 10.69 6.25 1.81 2.00 0 2.13 0.13 0.53 3020 0.875 3.250 33.9 5.41 G

P80-14MGT-40 80 14.036 13.926 14.625 DF-3 12.53 5.50 1.81 2.00 0 2.13 0.13 0.53 3020 0.875 3.250 33.7 7.474 G

P90-14MGT-40 90 15.790 15.680 — D-3 14.25 5.50 1.81 2.00 0 2.13 0.13 0.53 3020 0.875 3.250 39.7 9.396 G

P112-14MGT-40 112 19.650 19.540 — A-3 18.09 — — 2.00 0 2.13 0.13 1.06 3020 0.875 3.250 100.5 29.66 G

P144-14MGT-40 144 25.264 25.154 — A-3 23.65 — — 2.00 0 2.13 0.13 1.06 3020 0.875 3.250 154.1 75.16 G

P168-14MGT-40 168 29.475 29.365 — A-3 27.50 — — 2.00 0 2.13 0.13 1.06 3020 0.875 3.250 133.2 113.3 G

P192-14MGT-40 192 33.686 33.576 — A-3 31.75 — — 2.00 0 2.13 0.13 1.06 3020 0.875 3.250 167.6 189.8 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

14mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

Page 108 The Gates Rubber Company

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P28-14MGT-55 28 4.912 4.802 5.560 AF-1 3.13 — 2.43 1.25 0 2.75 1.50 1.38 2012 0.500 2.125 7.4 0.194 G

P29-14MGT-55 29 5.088 4.978 5.560 AF-1 3.13 — 2.43 1.25 0 2.75 1.50 1.38 2012 0.500 2.125 8.4 0.231 G

P30-14MGT-55 30 5.263 5.153 6.125 AF-1 3.80 — 2.43 1.75 0 2.75 1.00 1.38 2517 0.500 2.688 7.4 0.237 G

P32-14MGT-55 32 5.614 5.504 6.125 AF-1 3.92 — 2.43 1.75 0 2.75 1.00 1.38 2517 0.500 2.688 9.3 0.327 G

P34-14MGT-55 34 5.965 5.855 6.500 AF-1 4.06 — 2.43 1.75 0 2.75 1.00 1.38 2517 0.500 2.688 11.2 0.437 G

P36-14MGT-55 36 6.316 6.206 6.875 AF-1 4.69 — 2.43 1.75 0 2.75 1.00 1.38 2517 0.500 2.688 12.4 0.54 G

P38-14MGT-55 38 6.669 6.557 7.219 AF-1 4.94 — 2.43 1.75 0 2.75 1.00 1.38 2517 0.500 2.688 14.4 0.686 G

P40-14MGT-55 40 7.018 6.908 7.500 AF-1 5.06 — 2.43 1.75 0 2.75 1.00 1.38 2517 0.500 2.688 16.7 0.871 G

P44-14MGT-55 44 7.720 7.610 8.343 AF-1 6.12 — 2.43 1.75 0 2.75 1.00 1.38 2517 0.500 2.688 19.9 1.234 G

P48-14MGT-55 48 8.421 8.311 8.937 AF-1 6.50 — 2.43 2.00 0 2.75 0.75 1.38 3020 0.875 3.250 24.4 1.84 G

P52-14MGT-55 52 9.123 9.013 9.687 AF-1 7.18 — 2.43 2.00 0 2.75 0.75 1.38 3020 0.875 3.250 29.6 2.573 G

P56-14MGT-55 56 9.825 9.715 10.375 AF-1 7.88 — 2.43 2.00 0 2.75 0.75 1.38 3020 0.875 3.250 35.3 3.489 G

P60-14MGT-55 60 10.527 10.417 11.062 AF-1 8.50 — 2.43 2.00 0 2.75 0.75 1.38 3020 0.875 3.250 41.6 4.647 G

P64-14MGT-55 64 11.229 11.119 11.750 AF-1 9.25 — 2.43 2.00 0 2.75 0.75 1.38 3020 0.875 3.250 47.9 6.012 G

P68-14MGT-55 68 11.930 11.820 12.500 DF-1 10.00 6.25 2.43 2.00 0 2.75 0.75 0.69 3020 0.875 3.250 40.2 5.909 G

P72-14MGT-55 72 12.632 12.522 13.187 DF-1 10.69 6.25 2.43 2.00 0 2.75 0.75 0.69 3020 0.875 3.250 45.1 7.387 G

P80-14MGT-55 80 14.036 13.926 14.625 DF-3 12.00 5.50 2.43 2.00 0 2.75 0.75 0.69 3020 0.875 3.250 41.6 9.021 G

P90-14MGT-55 90 15.790 15.680 — D-3 14.22 5.50 — 2.00 0 2.75 0.75 0.69 3020 0.875 3.250 45.0 12.36 G

P112-14MGT-55 112 19.650 19.540 — D-2 18.04 6.25 — 2.00 0 2.75 0.75 0.69 3020 0.875 3.250 116.7 36.86 G

P144-14MGT-55 144 25.264 25.154 — D-3 23.38 6.25 — 2.00 0 2.75 0.75 0.69 3020 0.875 3.250 98.0 65.38 G

P168-14MGT-55 168 29.475 29.365 — D-3 27.50 6.25 — 2.00 0.19 2.75 0.56 0.88 3020 0.875 3.250 145.5 150.2 G

P192-14MGT-55 192 33.686 33.576 — C-3 31.93 6.56 — 3.50 0 2.75 0.75 0.69 3535 1.188 3.938 432.3 404.3 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

14mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

The Driving Force in Power Transmission. Page 109

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P28-14MGT-85 28 4.912 4.802 5.560 AF-1 3.13 — 3.68 1.25 1.31 4.00 1.44 2.00 2012 0.500 2.125 10.5 0.278 G

P29-14MGT-85 29 5.088 4.978 5.560 AF-1 3.13 — 3.68 1.25 1.31 4.00 1.44 2.00 2012 0.500 2.125 11.9 0.332 G

P30-14MGT-85 30 5.263 5.153 6.125 AF-1 3.78 — 3.68 1.75 0.50 4.00 1.75 2.00 2517 0.500 2.688 10.2 0.332 G

P32-14MGT-85 32 5.614 5.504 6.125 AF-1 3.92 — 3.68 1.75 0.81 4.00 1.44 2.00 2517 0.500 2.688 12.7 0.459 G

P34-14MGT-85 34 5.965 5.855 6.500 AF-1 4.06 — 3.68 1.75 0.81 4.00 1.44 2.00 2517 0.500 2.688 15.3 0.614 G

P36-14MGT-85 36 6.316 6.206 6.875 AF-1 4.69 — 3.68 2.00 0.53 4.00 1.47 2.00 3020 0.875 3.250 14.4 0.694 D

P38-14MGT-85 38 6.669 6.557 7.219 AF-1 4.94 — 3.68 2.00 0.53 4.00 1.47 2.00 3020 0.875 3.250 17.0 0.897 G

P40-14MGT-85 40 7.018 6.908 7.500 AF-1 5.06 — 3.68 2.00 0.53 4.00 1.47 2.00 3020 0.875 3.250 20.3 1.161 G

P44-14MGT-85 44 7.720 7.610 8.343 AF-1 6.12 — 3.68 2.00 0.53 4.00 1.47 2.00 3020 0.875 3.250 23.6 1.615 G

P48-14MGT-85 48 8.421 8.311 8.937 AF-1 6.50 — 3.68 2.00 0.53 4.00 1.47 2.00 3020 0.875 3.250 30.6 2.432 G

P52-14MGT-85 52 9.123 9.013 9.687 AF-1 7.18 — 3.68 3.50 0 4.00 0.50 2.00 3535 1.188 3.938 36.6 3.356 G

P56-14MGT-85 56 9.825 9.715 10.375 AF-1 7.88 — 3.68 3.50 0 4.00 0.50 2.00 3535 1.188 3.938 52.4 5.300 G

P60-14MGT-85 60 10.527 10.417 11.062 AF-1 8.50 — 3.68 3.50 0 4.00 0.50 2.00 3535 1.188 3.938 62.8 7.128 G

P64-14MGT-85 64 11.229 11.119 11.750 AF-1 9.25 — 3.68 3.50 0 4.00 0.50 2.00 3535 1.188 3.938 73.6 9.334 G

P68-14MGT-85 68 11.930 11.820 12.500 DF-1 10.00 7.00 3.68 3.50 0 4.00 0.50 1.00 3535 1.188 3.938 63.3 9.169 G

P72-14MGT-85 72 12.632 12.522 13.187 AF-1 10.69 — 3.68 3.50 0 4.00 0.50 2.00 3535 1.188 3.938 97.4 15.19 G

P80-14MGT-85 80 14.036 13.926 14.625 DF-2 12.13 7.00 3.68 3.50 0 4.00 0.50 1.00 3535 1.188 3.938 62.9 13.04 G

P90-14MGT-85 90 15.790 15.680 — D-2 14.15 7.00 — 3.50 0 4.00 0.50 1.00 3535 1.188 3.938 71.5 18.14 G

P112-14MGT-85 112 19.650 19.540 — D-3 17.97 6.56 — 3.50 0 4.00 0.50 1.00 3535 1.188 3.938 131.2 44.18 D

P144-14MGT-85 144 25.264 25.154 — D-3 23.40 7.63 — 4.00 0 4.00 0 1.00 4040 1.438 4.438 137.4 92.1 G

P168-14MGT-85 168 29.475 29.365 — D-3 27.70 7.63 — 4.00 0 4.00 0 1.00 4040 1.438 4.438 192.2 194.5 G

P192-14MGT-85 192 33.686 33.576 — D-3 31.87 7.63 — 4.00 0 4.00 0 1.00 4040 1.438 4.438 448.0 444.6 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

14mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

Page 110 The Gates Rubber Company

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P28-14MGT-115 PB 28 4.912 4.802 5.562 6F-1 3.13 3.69 4.93 5.00 1.20 5.30 1.50 2.67 MPB 1.250 2.688 22.2 0.508 D

P29-14MGT-115 PB 29 5.088 4.978 5.562 6F-1 3.13 3.69 4.93 5.00 1.20 5.30 1.50 2.67 MPB 1.250 2.688 24.0 0.585 D

P30-14MGT-115 30 5.263 5.153 5.763 AF-1 3.70 — 4.93 1.75 1.75 5.25 1.75 2.63 2517 0.500 2.688 13.4 0.438 G

P32-14MGT-115 32 5.614 5.504 6.114 AF-1 3.94 — 4.93 1.75 1.75 5.25 1.75 2.63 2517 0.500 2.688 16.0 0.587 G

P34-14MGT-115 34 5.965 5.855 6.465 AF-1 4.06 — 4.93 1.75 1.75 5.25 1.75 2.63 2517 0.500 2.688 19.5 0.790 G

P36-14MGT-115 36 6.316 6.206 6.816 AF-1 4.74 — 4.93 2.00 1.63 5.26 1.63 2.63 3020 0.875 3.250 17.9 0.876 G

P38-14MGT-115 38 6.669 6.557 7.167 AF-1 5.08 — 4.93 2.00 1.63 5.26 1.63 2.63 3020 0.875 3.250 20.3 1.100 G

P40-14MGT-115 40 7.018 6.908 7.518 AF-1 5.43 — 4.93 2.00 1.63 5.26 1.63 2.63 3020 0.875 3.250 22.9 1.357 G

P44-14MGT-115 44 7.720 7.610 8.395 AF-1 6.13 — 4.93 3.50 0.88 5.26 0.88 2.63 3535 1.188 3.938 30.3 2.144 G

P48-14MGT-115 48 8.421 8.311 8.941 AF-1 6.50 — 4.93 3.50 0.88 5.26 0.88 2.63 3535 1.188 3.938 40.3 3.277 G

P52-14MGT-115 52 9.123 9.013 9.687 AF-1 7.18 — 4.93 4.00 0.63 5.26 0.63 2.63 4040 1.438 4.438 46.8 4.545 G

P56-14MGT-115 56 9.825 9.715 10.355 AF-1 7.88 — 4.93 4.00 0.63 5.26 0.63 2.63 4040 1.438 4.438 58.1 6.335 G

P60-14MGT-115 60 10.527 10.417 11.067 AF-1 8.50 — 4.93 4.00 0.63 5.26 0.63 2.63 4040 1.438 4.438 70.4 8.589 G

P64-14MGT-115 64 11.229 11.119 11.750 AF-1 9.25 — 4.93 4.50 0.38 5.26 0.38 2.63 4545 1.938 4.938 82.4 11.47 G

P68-14MGT-115 68 11.930 11.820 12.500 AF-1 10.00 — 4.93 4.50 0.38 5.26 0.38 2.63 4545 1.938 4.938 97.2 14.91 G

P72-14MGT-115 72 12.632 12.522 13.066 AF-1 10.70 — 4.93 4.50 0.38 5.26 0.38 2.63 4545 1.938 4.938 113.2 19.06 G

P80-14MGT-115 80 14.036 13.926 14.620 AF-2 12.13 — 4.93 4.50 0.38 5.26 0.38 2.63 4545 1.938 4.938 147.5 29.66 G

P90-14MGT-115 90 15.790 15.680 — D-1 14.11 9.50 — 4.50 0.38 5.26 0.38 2.32 4545 1.938 4.938 116.9 28.30 G

P112-14MGT-115 112 19.650 19.540 — D-2 17.94 9.50 — 4.50 0 5.25 0.75 1.94 4545 1.938 4.938 173.3 64.72 G

P144-14MGT-115 144 25.264 25.154 — D-3 9.50 17.94 — 4.50 0.38 5.26 0.38 2.32 4545 1.938 4.938 172.2 119.8 G

P168-14MGT-115 168 29.475 29.365 — D-3 27.66 8.63 — 4.50 0.38 5.26 0.38 2.32 4545 1.938 4.938 223.4 243.3 G

P192-14MGT-115 192 33.686 33.576 — D-2 31.83 8.63 — 4.50 0.38 5.26 0.38 2.32 4545 1.938 4.938 475.0 496.5 G

P216-14MGT-115 216 37.896 37.786 — D-3 36.00 13.06 — 5.00 0 5.25 0.25 1.94 6050 4.438 6.000 378.0 686.1 G

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

14mm Pitch PowerGrip GT2 Sprocket Specifications

Details shown which do not affect drive function may be changed without notification.

The Driving Force in Power Transmission. Page 111

Sprocket

Number

Teeth

Diameters (in)

Design

Type

Dimensions (in)

Approx.

Wt.(lb)

Approx.

WR2

Matl.

Spec.

Pitch O.D

Flange

Ref. A B C D E F M F-CL

Bushing

Size

Bore Sizes

Min. Max.

P36-14MGT-170 PB 36 6.316 6.206 6.816 6F-1 4.69 5.00 7.06 6.00 1.21 7.42 2.63 3.73 MPB 1.500 3.375 47.3 1.849 D

P38-14MGT-170 PB 38 6.667 6.557 7.167 6F-1 4.94 5.38 7.06 6.00 1.21 7.42 2.63 3.73 MPB 1.500 3.375 53.5 2.321 D

P40-14MGT-170 40 7.018 6.908 7.518 AF-1 5.54 — 7.06 3.50 1.94 7.38 1.94 4.94 3535 1.188 3.938 28.6 1.780 G

P44-14MGT-170 44 7.720 7.610 8.395 AF-1 6.06 — 7.06 3.50 1.94 7.38 1.94 3.69 3535 1.188 3.938 38.9 2.828 G

P48-14MGT-170 48 8.421 8.311 8.941 AF-1 6.50 — 7.06 3.50 1.94 7.38 1.94 3.69 3535 1.188 3.938 51.0 4.283 G

P52-14MGT-170 52 9.123 9.013 9.687 AF-1 7.18 — 7.06 4.00 1.13 7.38 2.25 3.69 4040 1.438 4.438 58.6 5.877 G

P56-14MGT-170 56 9.825 9.715 10.355 AF-1 7.88 — 7.06 4.00 1.13 7.38 2.25 3.69 4040 1.438 4.438 70.9 8.051 G

P60-14MGT-170 60 10.527 10.417 11.067 AF-1 8.50 — 7.06 4.50 0.75 7.38 2.13 3.69 4545 1.938 4.938 82.9 10.85 G

P64-14MGT-170 64 11.229 11.119 11.750 AF-1 9.53 — 7.06 4.50 0.63 7.38 2.25 3.69 4545 1.938 4.938 94.5 13.71 G

P68-14MGT-170 68 11.930 11.820 12.500 AF-1 10.00 — 7.06 4.50 0.63 7.38 2.25 3.69 4545 1.938 4.938 113.0 18.15 G

P72-14MGT-170 72 12.632 12.522 13.066 AF-1 10.69 — 7.06 4.50 0.63 7.38 2.25 3.69 4545 1.938 4.938 130.1 23.00 G

P80-14MGT-170 80 14.036 13.926 14.625 AF-1 12.13 — 7.06 4.50 1.04 7.38 1.84 3.69 4545 1.938 4.938 166.2 35.12 G

P90-14MGT-170 90 15.790 15.680 — D-1 14.05 9.00 — 4.50 0.63 7.38 2.25 3.10 4545 1.938 4.938 159.2 42.03 G

P112-14MGT-170 112 19.650 19.540 — D-1 17.87 11.39 — 4.50 0 7.63 3.13 2.47 4545 1.938 4.938 215.1 81.3 G

P144-14MGT-170 144 25.264 25.154 — D-3 23.31 13.02 — 5.00 1.19 7.38 1.19 3.66 6050 4.438 6.000 264.0 207.9 G

P168-14MGT-170 168 29.475 29.365 — D-2 27.59 13.02 — 5.00 1.19 7.38 1.19 3.66 6050 4.438 6.000 462.0 384.2 G

P192-14MGT-170 192 33.686 33.576 — D-3 31.76 13.02 — 5.00 1.19 7.38 1.19 3.66 6050 4.438 6.000 616.0 655.7 G

P216-14MGT-170 216 37.896 37.786 — D-2 35.93 13.02 — 5.00 1.19 7.38 1.19 3.66 6050 4.438 6.000 563.0 851.7 D

Material Spec : S - Steel SS - Sintered Steel G - Grey Iron D - Ductile Iron

Design Type Suffix: 1 - Solid 2 - Web 3 - Arms

Gates PowerGrip HTD®Sprocket Specifications

For 20mm Pitch PowerGrip GT2 Belts

Page 112 The Gates Rubber Company

Type A

BAO.D.

Type D

BAO.D.

Type G

Motor

Reverse

Mount

Conventional

Mount

QD Bushing Types M - S

mount in a

Conventional manner only.

Motor

Bushing Mounting

Sprocket Specification Tables

20mm Pitch HTD®Stock Sprockets

†Weight shown is for sprocket without bushing. G = Gray Iron

The Driving Force in Power Transmission. Page 113

115mm (4.53 in) Wide Belts (20M-115)

Sprocket

Code

Symbol

Q.D.

Bores

No.

Teeth

Diameters (Inches)

Type

Dimensions (in) Bore Sizes Approx.

Weight†

(lb)

Approx.

WR2Mat’l

Spec.

Pitch O.D. Flange A B C D E F K L M Min. Max.

P34-20M-115 F 34 8.522 8.352 9716 A-1 634052

12116 5381716 3341716 1 4 36.5 2.820 G

P36-20M-115 F 36 9.023 8.853 92732 A-1 613 16 052

12116 5381716 3341716 1 4 46.3 3.881 G

P38-20M-115 F 38 9.524 9.354 10716 A-1 7516 052

12116 5381716 3341716 1 4 51.0 4.833 G

P40-20M-115 F 40 10.026 9.855 1013 16 A-1 778052

12116 5381716 3341716 1 4 57.4 5.878 G

P44-20M-115 F 44 11.028 10.858 1113 16 A-1 813 16 052

12116 5381716 3341716 1 4 70.8 8.681 G

P48-20M-115 J 48 12.031 11.861 1225 32 D-1 913 16 053

316 385381316 45811

1241290.9 13.16 G

P52-20M-115 J 52 13.033 12.863 1334D-1 1058053

316 385381316 45811

12412110.0 18.56 G

P56-20M-115 J 56 14.036 13.856 1434D-2 1134953

316 385381316 45811

12412106.0 20.02 G

P60-20M-115 J 60 15.038 14.868 1529 32 D-2 1213 16 953

316 385381316 45811

12412116.0 25.09 G

P64-20M-115 J 64 16.041 15.871 1629 32 D-2 1313 16 953

316 385381316 45811

12412127.0 31.22 G

P68-20M-115 J 68 17.032 16.873 1729 32 D-2 1434953

316 385381316 45811

12412148.0 41.30 G

P72-20M-115 J 72 18.046 17.876 1878D-2 1519 32 953

316 385381316 45811

12412186.0 52.29 G

P80-20M-115 M 80 20.051 19.881 2078D-2 1734113855

316 112538316 634025

12237.0 81.91 G

P90-20M-115 M 90 22.557 22.387 2313 32 D-2 20516 113855

316 112538316 634025

12275.0 120.1 G

P112-20M-115 M 112 28.071 27.901 —D-2 2638113855

316 112538316 634025

12477.0 273.2 G

P144-20M-115 N 144 36.092 35.922 —G-3 343812 5 61425

3808

13 16 782716 578612.0 408.3 G

P168-20M-115 N 168 42.107 41.937 —G-3 403812 5 61425

3808

18782716 578648.0 606.1 G

P192-20M-115 N 192 48.122 47.952 —G-3 461412 5 61425

3808

18782716 578786.0 1068 G

P216-20M-115 N 216 54.136 53.958 —G-3 521412 5 61425

3808

18782716 578907.0 1555 G

230mm (9.06 in) Wide Belts (20M-230)

P34-20M-170 MPB 34 8.522 8.352 9716 F-1 612612718—114712—61221421841487.2 5.642 G

P36-20M-170 MPB 36 9.023 8.853 92732 F-1 7 7 718—114712—61221421841298.7 7.136 G

P38-20M-170 J 38 9.524 9.354 10716 A-1 73807

183316 587122316 45821811241264.0 6.369 G

P40-20M-170 J 40 10.026 9.855 1013 16 A-1 73407

183316 347122516 45821

1241273.4 8.032 G

P44-20M-170 J 44 11.028 10.858 1113 16 A-1 87807

183316 587122316 45821811241288.1 11.51 G

P48-20M-170 M 48 12.031 11.861 1225 32 D-1 97807

185316 316 71211263413 16 25

12120.0 18.50 G

P52-20M-170 M 52 13.033 12.863 1334D-1 101116 07

185316 316 71211263413 16 25

12149.0 26.45 G

P56-20M-170 M 56 14.036 13.856 1434D-1 1113 16 07

185316 316 71211263413 16 25

12177.0 35.64 G

P60-20M-170 M 60 15.038 14.868 1529 32 D-1 127807

185316 316 71211263413 16 25

12209.0 47.39 G

P64-20M-170 M 64 16.041 15.871 1629 32 D-1 137807

185316 316 71211263413 16 25

12236.0 61.79 G

P68-20M-170 M 68 17.032 16.873 1729 32 D-2 1413 16 11387185316 316 71211263413 16 25

12214.0 58.93 G

P72-20M-170 M 72 18.046 17.876 1878D-2 1519 32 11387185316 316 71211263413 16 25

12238.0 73.88 G

P80-20M-170 M 80 20.051 19.881 2078D-2 1713 16 11387185316 316 71211263413 16 25

12262.0 98.45 G

P90-20M-170 M 90 22.557 22.387 2313 32 D-2 203811387185316 316 71211263413 16 25

12303.0 143.5 G

P112-20M-170 N 112 28.071 27.901 —D-2 261412 7186143471211481802

716 578473.0 323.7 G

P144-20M-170 N 144 36.092 35.922 —D-3 341412 7186143471211481802

716 578520.0 515.3 G

P168-20M-170 P 168 42.107 41.937 —G-3 401414 7187141316 7121116 93813 16 215 16 7 619.0 804.9 G

P192-20M-170 P 192 48.122 47.952 —G-3 461414 7187141316 7121116 93813 16 215 16 7 783.0 1315 G

P216-20M-170 P 216 54.136 53.958 —G-3 521814 7187141316 7121116 93813 16 215 16 7 902.0 1997 G

Details shown which do not affect drive function may be changed without notification.

Sprocket Specification Tables

20mm Pitch HTD®Stock Sprockets

†Weight shown is for sprocket without bushing. G = Gray Iron

Page 114 The Gates Rubber Company

170mm (6.69 in.) Wide Belts (20M-170)

Sprocket

Code

Symbol

Q.D.

Bores

No.

Teeth

Diameters (Inches)

Type

Dimensions (in) Bore Sizes Approx.

Weight†

(lb)

Approx.

WR2Mat’l

Spec.

Pitch O.D. Flange A B C D E F K L M Min. Max.

P38-20M-230 MPB 38 9.524 9.354 10716 F-1 7916 712912—114978—712358278434128.0 11.06 G

P40-20M-230 MPB 40 10.026 9.855 1013 16 F-1 8 8 912—114978—812258278514156.0 14.35 G

P44-20M-230 MPB 44 11.028 10.858 1113 16 F-1 815 16 814912—114978—8122582786 189.0 21.65 G

P48-20M-230 M 48 12.031 11.861 1225 32 A-1 915 16 09

125316 516 97826

3421116 25

12140.0 21.86 G

P52-20M-230 M 52 13.033 12.863 1334A-1 102132 09

125316 516 97826

3421116 25

12175.0 31.64 G

P56-20M-230 M 56 14.036 13.856 1434A-1 115809

125316 516 97826

3421116 25

12204.0 42.74 G

P60-20M-230 M 60 15.038 14.868 1529 32 A-1 1215 16 09

125316 516 97826

3421116 25

12234.0 54.44 G

P64-20M-230 M 64 16.041 15.871 1629 32 A-1 1315 16 09

125316 516 97826

3421116 25

12270.0 70.49 G

P68-20M-230 N 68 17.032 16.873 1729 32 D-1 147809

12614316 978113 16 818113 16 278578341.0 98.76 G

P72-20M-230 N 72 18.046 17.876 1878D-1 1519 32 09

12614316 978113 16 818113 16 278578410.0 127.3 G

P80-20M-230 N 80 20.051 19.881 2078D-2 177812 912614316 978113 16 818113 16 278578343.0 128.9 G

P90-20M-230 N 90 22.557 22.387 2313 32 D-2 20716 12 912614316 978113 16 818113 16 278578398.0 187.5 G

P112-20M-230 N 112 28.071 27.901 —D-2 261412 912614316 978113 16 818113 16 278578664.0 368.8 G

P144-20M-230 P 144 36.092 35.922 —D-3 341414 91271415 16 9781516 9381516 215 16 7 886.0 637.1 G

P168-20M-230 P 168 42.107 41.937 —D-3 401414 91271415 16 9781516 9381516 215 16 7 934.0 967.5 G

P192-20M-230 W 192 48.122 47.952 —G-3 46 17 912919

7811211385848

121429.0 2203 G

P216-20M-230 W 216 54.136 53.958 —G-3 52 17 912919

7811211385848

121317.0 2576 G

290mm (11.42 in) Wide Belts (20M-290)

P52-20M-290 N 52 13.033 12.863 1334A-1 1013 16 011

786141212142128183122716 578202.0 37.46 G

P56-20M-290 N 56 14.036 13.856 1434A-1 1178011

786141212142128183122716 578237.0 50.16 G

P60-20M-290 N 60 15.038 14.868 1529 32 A-1 13 0 11786141212142128183122716 578276.0 65.49 G

P64-20M-290 N 64 16.041 15.871 1629 32 A-1 14 0 11786141212142128183122716 578320.0 84.94 G

P68-20M-290 N 68 17.032 16.873 1729 32 A-1 1415 16 011

786141212142128183122716 578368.0 109.1 G

P72-20M-290 N 72 18.046 17.876 1878A-2 1519 32 12 11786141212142128183122716 578404.0 120.6 G

P80-20M-290 N 80 20.051 19.881 2078A-2 1729 32 12 11786141212142128183122716 578376.0 146.7 G

P90-20M-290 N 90 22.557 22.387 2313 32 A-2 201212 11786141212142128183122716 578431.0 210.6 G

P112-20M-290 P 112 28.071 27.901 —A-2 261814 1178714141214212938212215 16 7 799.0 447.8 G

P144-20M-290 P 144 36.092 35.922 —A-3 34 14 1178714141214212938212215 16 7 1004.00 818.9 G

P168-20M-290 W 168 42.107 41.937 —A-3 40 17 11789316 121421116 1138916 48

121410.0 1669 G

P192-20M-290 W 192 48.122 47.952 —A-3 46 17 11789316 121421116 1138916 48

121552.0 2491 G

P216-20M-290 W 216 54.136 53.958 —A-3 52 17 11789316 121421116 1138916 48

121441.0 2991 G

340mm (13.39 in) Wide Belts (20M-340)

P52-20M-340 N 52 13.033 12.863 1334A-1 1013 16 013

786141214142128185122716 578219.0 41.49 G

P56-20M-340 N 56 14.036 13.856 1434A-1 1178013

786141214142128185122716 578258.0 55.14 G

P60-20M-340 N 60 15.038 14.868 1529 32 A-1 13116 013

786141214142128185122716 578294.0 70.61 G

P64-20M-340 N 64 16.041 15.871 1629 32 A-1 14116 013

786141214142128185122716 578339.0 91.26 G

P68-20M-340 N 68 17.032 16.873 1729 32 A-1 15 0 13786141214142128185122716 578389.0 117.1 G

P72-20M-340 N 72 18.046 17.876 1878A-2 1519 32 12 13786141214142128185122716 578438.0 133.5 G

P80-20M-340 P 80 20.051 19.881 2078A-2 18 14 13787141141414312938312215 16 7 462.0 183.9 G

P90-20M-340 P 90 22.557 22.387 2313 32 A-2 20916 14 13787141141414312938312215 16 7 507.0 245.1 G

P112-20M-340 P 112 28.071 27.901 —A-2 26332 14 13787141141414312938312215 16 7 870.0 492.1 G

P144-20M-340 W 144 36.092 35.922 —A-3 34 17 13789181414258113825848

121215.0 982.1 G

P168-20M-340 W 168 42.107 41.937 —A-3 40 17 13789181414258113825848

121514.0 1829 G

P192-20M-340 S 192 48.122 47.952 —D-3 46 19 137812 2381414118151411851210 1817.0 2847 G

P216-20M-340 S 216 54.136 53.958 —D-3 517819 137812 2381414118151411851210 1717.0 3625 G

Details shown which do not affect drive function may be changed without notification.

Gates PowerGrip®Timing Belt Pulleys

The Driving Force in Power Transmission. Page 115

Pulley

Designation

Number

Grooves

Pitch

Diameter

(in)

Outside

Diameter

(in)

10XL037 10 .637 .617

11XL037 11 .700 .680

12XL037 12 .764 .744

14XL037 14 .891 .871

15XL037 15 .955 .935

16XL037 16 1.019 .999

18XL037 18 1.146 1.126

20XL037 20 1.273 1.253

21XL037 21 1.337 1.317

22XL037 22 1.401 1.381

24XL037 24 1.528 1.508

28XL037 28 1.783 1.763

30XL037 30 1.910 1.890

32XL037 32 2.037 2.017

36XL037 36 2.292 2.272

40XL037 40 2.546 2.526

42XL037 42 2.674 2.654

44XL037 44 2.801 2.781

48XL037 48 3.056 3.036

60XL037 60 3.820 3.800

72XL037 72 4.584 4.564

0.200″Pitch, XL

For 14

″and 38

″Wide Belts

Pulley

Designation

Number

Grooves

Pitch

Diameter

(in)

Outside

Diameter

(in)

10L050 10 1.194 1.164

12L050 12 1.432 1.402

14L050 14 1.671 1.641

16L050 16 1.910 1.880

17L050 17 2.029 1.999

18L050 18 2.149 2.119

19L050 19 2.268 2.238

20L050 20 2.387 2.357

21L050 21 2.507 2.477

22L050 22 2.626 2.596

24L050 24 2.865 2.835

26L050 26 3.104 3.074

28L050 28 3.342 3.312

30L050 30 3.581 3.551

32L050 32 3.820 3.790

40L050 40 4.775 4.745

48L050 48 5.730 5.700

60L050 60 7.162 7.132

72L050 72 8.594 8.564

84L050 84 10.027 9.997

0.375″Pitch, L

For 12

″Wide Belts

Pulley

Designation

Number

Grooves

Pitch

Diameter

(in)

Outside

Diameter

(in)

12L075 12 1.432 1.402

14L075 14 1.671 1.641

16L075 16 1.910 1.880

17L075 17 2.029 1.999

18L075 18 2.149 2.119

19L075 19 2.268 2.238

20L075 20 2.387 2.357

21L075 21 2.507 2.477

22L075 22 2.626 2.596

24L075 24 2.865 2.835

26L075 26 3.104 3.074

28L075 28 3.342 3.312

30L075 30 3.581 3.551

32L075 32 3.820 3.790

40L075 40 4.775 4.745

48L075 48 5.730 5.700

60L075 60 7.162 7.132

72L075 72 8.594 8.564

84L075 84 10.027 9.997

0.375″Pitch, L

For 34

″Wide Belts

Pulley

Designation

Number

Grooves

Pitch

Diameter

(in)

Outside

Diameter

(in)

14L100 14 1.671 1.641

16L100 16 1.910 1.880

17L100 17 2.029 1.999

18L100 18 2.149 2.119

19L100 19 2.268 2.238

20L100 20 2.387 2.357

21L100 21 2.507 2.477

22L100 22 2.626 2.596

24L100 24 2.865 2.835

26L100 26 3.104 3.074

28L100 28 3.342 3.312

30L100 30 3.581 3.551

32L100 32 3.820 3.790

40L100 40 4.775 4.745

48L100 48 5.730 5.700

60L100 60 7.162 7.132

72L100 72 8.594 8.564

84L100 84 10.027 9.997

0.375″Pitch, L

For 1″Wide Belts

Pulley

Designation

Number

Grooves

Pitch

Diameter

(in)

Outside

Diameter

(in)

14H100 14 2.228 2.174

16H100 16 2.546 2.492

18H100 18 2.865 2.811

20H100 20 3.183 3.129

22H100 22 3.501 3.447

24H100 24 3.820 3.766

26H100 26 4.138 4.084

28H100 28 4.456 4.402

30H100 30 4.775 4.721

32H100 32 5.093 5.039

40H100 40 6.366 6.312

48H100 48 7.639 7.585

60H100 60 9.549 9.495

72H100 72 11.459 11.405

84H100 84 13.369 13.315

96H100 96 15.279 15.225

120H100 120 19.099 19.045

0.500″Pitch, H

For 34

″and 1″Wide Belts

Pulley

Designation

Number

Grooves

Pitch

Diameter

(in)

Outside

Diameter

(in)

14H150 14 2.228 2.174

16H150 16 2.546 2.492

18H150 18 2.865 2.811

20H150 20 3.183 3.129

22H150 22 3.501 3.447

24H150 24 3.820 3.766

26H150 26 4.138 4.084

28H150 28 4.456 4.402

30H150 30 4.775 4.721

32H150 32 5.093 5.039

40H150 40 6.366 6.312

48H150 48 7.639 7.585

60H150 60 9.549 9.495

72H150 72 11.459 11.405

84H150 84 13.369 13.315

96H150 96 15.279 15.225

120H150 120 19.099 19.045

0.500″Pitch, H

For 112

″Wide Belts

Pulley

Designation

Number

Grooves

Pitch

Diameter

(in)

Outside

Diameter

(in)

16H200 16 2.546 2.492

18H200 18 2.865 2.811

20H200 20 3.183 3.129

22H200 22 3.501 3.447

24H200 24 3.820 3.766

26H200 26 4.138 4.084

28H200 28 4.456 4.402

30H200 30 4.775 4.721

32H200 32 5.093 5.039

40H200 40 6.366 6.312

48H200 48 7.639 7.585

60H200 60 9.549 9.495

72H200 72 11.459 11.405

84H200 84 13.369 13.315

96H200 96 15.279 15.225

120H200 120 19.099 19.045

0.500″Pitch, H

For 2″Wide Belts

Pulley

Designation

Number

Grooves

Pitch

Diameter

(in)

Outside

Diameter

(in)

16H300 16 2.546 2.492

18H300 18 2.865 2.811

20H300 20 3.183 3.129

22H300 22 3.501 3.447

24H300 24 3.820 3.766

26H300 26 4.138 4.084

28H300 28 4.456 4.402

30H300 30 4.775 4.721

32H300 32 5.093 5.039

40H300 40 6.366 6.312

48H300 48 7.639 7.585

60H300 60 9.549 9.495

72H300 72 11.459 11.405

84H300 84 13.369 13.315

96H300 96 15.279 15.225

120H300 120 19.099 19.045

0.500″Pitch, H

For 3″Wide Belts

Page 116 The Gates Rubber Company

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

Range (in)

Outside

Diameter

Tolerance

(in)

Pitch To Pitch Tolerance (in)

Adjacent

Grooves

Accumulative Over

90 Degrees

Over 2.000 to and

including 4.000

+ 0.004

– 0.000 ±0.001 ±0.0045

Over 4.000 to and

including 7.000

+ 0.005

– 0.000 ±0.001 ±0.005

Over 7.000 to and

including 12.000

+ 0.006

– 0.000 ±0.001 ±0.006

Over 12.000 to and

including 20.000

+ 0.007

– 0.000 ±0.001 ±0.0065

Over 20.000 + 0.008

– 0.000 ±0.001 ±0.0075

Sprocket Runout

Radial Runout*

Outside Diameter

Total Eccentricity

Total Indicator Reading

(in) (mm) (in) (mm)

Up to 2 50 0.0025 0.06

Over 2 to 4 50

100 0.003 0.08

Over 4 to 8 100

200 0.004 0.10

Over 8 200

.0005 per inch

O.D. over 8″

.013 per mm O.D.

over 200mm

(may not exceed face diameter tolerance)

* 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)

Width wk†

(in)

Depth, hk(in)

+ 0.015

0.000

Up through 716 (0.44) 332 (0.0938) 364 (0.047)

Over 716 (0.44) to and incl. 916 (0.56) 18(0.125) 116 (0.062)

Over 916 (0.56) to and incl. 78(0.88) 316 (0.1875) 332 (0.094)

Over 78(0.88) to and incl. 1 14(1.25) 14(0.250) 18(0.125)

Over 114(1.25) to and incl. 138(1.38) 516 (0.3125) 532 (0.156)

Over 138(1.38) to and incl. 134(1.75) 38(0.375) 316 (0.188)

Over 134(1.75) to and incl. 2 14(2.25) 12(0.500) 14(0.250)

Over 214(2.25) to and incl. 234(2.75) 58(0.625) 516 (0.312)

Over 234(2.75) to and incl. 3 14(3.25) 34(0.750) 38(0.375)

Over 314(3.25) to and incl. 334(3.75) 78(0.875) 716 (0.438)

Over 334(3.75) to and incl. 4 12(4.50) 1 (1.000) 12(0.500)

Over 412(4.50) to and incl. 512(5.50) 1 14(1.250) 58(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

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:

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 require-

ments 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 oper-

ate with the Gates PowerGrip GT2 Belt. See Engineering Sec-

tion 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 de-

signed, made-to-order sprockets. If those sprockets are sup-

plied 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 ad-

ditional details.

Recommended Re-bore Specifications and Instructions

For Minimum Plain Bore (MPB) Sprockets

When using MPB PowerGrip®GT®2 sprockets in power trans-

mission 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.

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 specifica-

tions are as follows:

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 Ta-

bles, pages 101 thru 111 for specific materials.

2. The maximum bore diameter specified by the manufac-

turer 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 Specifica-

tion Tables for a listing of recommended bore ranges by

sprocket size. Bores exceeding the maximum recom-

mended 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 Fig-

ure 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″

3. The fit between a finished sprocket bore and its mating

shaft in a power transmission system must not allow rela-

tive 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 rec-

ommendations presented in Table 1 should be followed:

Class 1 Clearance Fits should be used when the transmit-

ted load is smooth in nature.

Interference Fits should be used for PowerGrip GT2

curvilinear drives

transmitting cyclical, pulsating, or revers-

ing loads.

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 re-

moved. 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 reassem-

bly may cause serious personal injury and/or mechan-

ical damage.

5. Set screw holes in the sprocket hub must be placed prop-

erly for maximum holding strength. For both standard and

shallow keyseats, two (2) set screws should be used as il-

lustrated 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

Figure 1 — Minimum Hub Thickness And Set Screw Placement Guidelines

Table 1 - Recommended Shaft / Bore Fits (Inches)

Clearance Fits Interference Fits

Class 1- Smooth

Load

Cyclical, Pulsating,

Reversing Load

Nominal Bore

Range

Over - To (Incl.)

Shaft

Tol.

(minus)

Bore

Tol.

(Plus)

Fit Tol.

(Plus)

Bore Tolerance

Range

(Minus)

Fit Tolerance

Range

(Minus)

0.4375 - 0.5626 0.0005 0.0010 0.0015 0.0005 0.0010 0.0000 0.0010

0.5625 - 0.8750 0.0005 0.0010 0.0015 0.0005 0.0010 0.0000 0.0010

0.8750 - 1.2500 0.0005 0.0010 0.0015 0.0005 0.0010 0.0000 0.0010

1.2500 - 1.3750 0.0005 0.0010 0.0015 0.0005 0.0010 0.0000 0.0010

1.3750 - 1.500 0.0005 0.0010 0.0015 0.0005 0.0010 0.0000 0.0010

1.5000 - 1.7500 0.0010 0.0010 0.0020 0.0010 0.0020 0.0000 0.0020

1.7500 - 2.0000 0.0010 0.0010 0.0020 0.0010 0.0020 0.0000 0.0020

2.0000 - 2.2500 0.0010 0.0015 0.0025 0.0010 0.0020 0.0000 0.0020

2.2500 - 2.7500 0.0010 0.0015 0.0025 0.0010 0.0020 0.0000 0.0020

2.7500 - 3.0000 0.0010 0.0015 0.0025 0.0010 0.0020 0.0000 0.0020

3.0000 - 3.2500 0.0010 0.0015 0.0025 0.0015 0.0030 0.0005 0.0030

3.2500 - 3.7500 0.0010 0.0015 0.0025 0.0015 0.0030 0.0005 0.0030

3.7500 - 4.0000 0.0010 0.0015 0.0025 0.0015 0.0030 0.0005 0.0030

4.0000 - 4.5000 0.0010 0.0015 0.0025 0.0020 0.0035 0.0010 0.0035

4.5000 - 5.0000 0.0010 0.0015 0.0025 0.0020 0.0035 0.0010 0.0035

5.0000 - 5.5000 0.0010 0.0015 0.0025 0.0025 0.0040 0.0015 0.0040

5.5000 - 6.5000 0.0010 0.0015 0.0025 0.0025 0.0040 0.0015 0.0040

Table 1 was extracted in part from AGMA Standard for Bores and Keyways for

Flexible Couplings (Inch Series) AGMA 9002-A86 Table.

Recommended Re-bore Specifications and Instructions

For Minimum Plain Bore (MPB) Sprockets

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

tightening torque values see Table 2 below.

6. After reboring, the sprocket may require rebalancing. Vi-

bration, 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 bal-

ancing 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 bal-

ancing.

Page 118 The Gates Rubber Company

Table 2 — Recommended Tightening

Torque Values For Set Screws

Set Screw Size

Hex Key Size

(in)

Approximate Installation

Torque Values (lb-in)

8-32 564 20

10-32 332 35

141880

516 532 160

38316 275

716 732 430

1214615

58516 1315

Figure 2 — Set Screw Angles

Stock Bushings for Sprockets

The Driving Force in Power Transmission. Page 119

TAPER-LOCK* BUSHINGS

Bushing

Size

Torque Ca-

pacity

(lb-in)

Dimensions (in)

Bolt Circle

(in)

Mounting Screws

Bore Range

(in) Weight Range

(lb)

Min. Bore

Max Bore

A B Qty. Size

(deg)

Standard

Keyseat***

Shallow

Keyseat** Max. Bore Min. Bore

1008 1,200 1.386 0.875 1.328 2 14x12— 0.500 0.875 1.000 0.2 0.3

1108 1,300 1.511 0.875 1.328 2 14x12— 0.500 1.000 1.125 0.1 0.3

1210 3,600 1.875 1.000 1.750 2 38x58— 0.500 1.250 — 0.4 0.6

1610 4,300 2.250 1.000 2.125 2 38x58— 0.500 1.500 1.688 0.5 0.9

1615 4,300 2.25 1.500 2.125 2 38x58— 0.500 1.500 1.688 0.6 1.3

2012 7,150 2.750 1.250 2.625 2 716 x78— 0.500 1.875 2.125 0.9 1.7

2517 11,600 3.375 1.750 3.250 2 12x 1 — 0.500 2.250 2.688 1.8 3.7

3020 24,000 4.250 2.000 4.000 2 58x1 14— 0.875 2.750 3.250 3.3 6.5

3525 44,800 5.000 2.500 4.830 3 12x1 1239 1.188 3.250 3.938 3.7 10.9

3535 44,800 5.000 3.500 4.830 3 12x1 1239 1.188 3.250 3.938 5.0 14.8

4030 77,300 5.750 3.000 5.540 3 58x1 3440 1.438 3.625 4.438 6.4 17.3

4040 77,300 5.750 4.000 5.540 3 58x1 3440 1.438 3.625 4.438 8.2 22.1

4535 110,000 6.375 3.500 6.130 3 34x 2 40 1.938 4.250 4.938 8.8 23.7

4545 110,000 6.375 4.500 6.130 3 34x 2 40 1.938 4.250 4.938 11.2 30.3

5040 126,000 7.000 4.000 6.720 3 78x2 1437 2.438 4.500 5.000 15.9 31.5

6050 282,000 9.250 5.000 9.000 3 1 14x3 12— 4.438 6.000 — 45.0 57.0

7060 416,000 10.250 6.000 10.000 4 114x3 12— 4.938 7.000 — 66.0 87.0

* Registered trademark of Reliance Electric. ** Key is furnished with each bushing having a shallow keyseat.

Position of Screw

to Tighten Bushing

Bolt

Circle

Section A-A

85o85o

55o

For removing from Shaft:

- Half of Hole

Bushing Threaded

Hub NOT Threaded

Screw for Tightening on Shaft:

- Half of Hole

Hub Threaded

Bushing NOT Threaded

8 Taper

Included Angle

1008 thru 3020

Position of Screw

to Tighten Bushing

Bolt

Circle

Section A-A

Socket Head

Cap Screws

55o

For removing from Shaft:

- Half of Hole

Bushing Threaded

Hub NOT Threaded

Screw for Tightening on Shaft:

- Half of Hole

Hub Threaded

Bushing NOT Threaded

60o52o

8 Taper

Included Angle

3525 thru 5040

Bolt

Circle

Section A-A

60o

8 Taper

Included Angle

38o

45o

82o

6050 7060

Hex Head Cap

Screws for Bushing

Installation

For Bushing

Removal

Stock Bushings for Sprockets —continued

Page 120 The Gates Rubber Company

QD Bushings

Bushing

Size

Torque Ca-

pacity

(lb-in)

Dimensions (in)

Bolt Cir-

cle

Cap Screws Bore Range (in) Weight Range (lb)

A B D E F G L No. Size Min. Max.

Max.

Bore

Min.

Bore

F 30,000 1.000 4.438 6.625 2.844 2.500 0.344 3.750 5.625 3 916-12 x3581.000 4.000* 8.5 19.5

J 45,000 1.125 5.141 7.250 3.563 3.188 0.375 4.625 6.250 3 58-11 x4121.438 4.500** 12.8 29.7

M 85,000 1.250 6.500 9.000 5.594 5.188 0.406 6.750 7.875 4 34-10 x6342.000 5.500** 47.8 63.8

N 150,000 1.500 7.000 10.000 6.813 6.250 0.563 8.125 8.500 4 78-9 x 8 2.438 6.000** 48.0 94.0

P 250,000 1.750 8.250 11.750 7.875 7.250 0.625 9.375 10.000 4 1-8 x9 122.938 7.000** 69.5 133.0

W 375,000 2.000 10.422 15.000 9.500 9.000 0.500 11.375 12.750 4 1 18-7 x11 124.000 8.500** 164.0 262.0

S 625,000 2.750 12.125 17.750 12.750 12.000 0.750 15.250 15.000 5 1 14-7 x 15 5.500 10.000** 133.0 350.0

* Maximum bore without keyway

**Maximum bore with shallow keyway

Style F to J Style M through S

Taper

Per Foot

(

on diameter

)

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 di-

mensions.

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.

The Driving Force in Power Transmission. Page 121

Taper-Lock Bushing Keyseat Dimensions

Bushing Bores (in) Keyseat

1008 0.500 - 0.875 Standard

0.938 - 1.000 14x116

1108 0.500 - 1.000 Standard

1.062 - 1.125 14x116

1210 0.500 - 1.250 Standard

1610 0.500 - 1.500 Standard

1.563 - 1.688 38x18

1615 0.500 - 1.500

1.563 - 1.688

Standard

38x18

2012 0.500 - 1.875 Standard

1.938 - 2.125 12x316

2517 0.500 - 2.250 Standard

2.313 - 2.688 58x316

3020 0.875 - 2.750 Standard

2.813 - 3.250 34x14

3525

1.188 - 3.250 Standard

3.313 - 3.750 78x14

3.875 - 3.938 1 x 14

3535

1.188 - 3.250

3.313 - 3.750

3.875 - 3.938

Standard

78x14

1 x 14

4030

1.438 - 3.625 Standard

3.688 - 3.750 78x14

3.875 - 4.438 1 x 14

4040

1.438 - 3.625

3.688 - 3.750

3.875 - 4.438

Standard

78x14

1 x 14

4535

1.938 - 4.250 Standard

4.375 - 4.500 1 x 14

4.750 - 4.938 114x14

4545

1.938 - 4.250

4.375 - 4.500

4.750 - 4.938

Standard

1 x 14

118x14

5040 2.438 - 4.500 Standard

4.875 - 5.000 114x716

6050 4.438 - 6.000 Standard

7060 4.938 - 7.000 Standard

QD Bushing Keyseat Dimensions

Bushing Bores (in) Keyseat

1.000 - 3.250 Standard

3.375 - 3.750 78x316

3.875 - 3.938 1 x 18

J1.500 - 3.750 Standard

3.875 - 4.500 1 x 18

M2.000 - 4.750 Standard

4.875 - 5.500 1 14x14

2.438 - 5.000 Standard

5.125 - 5.500 1 14x14

5.625 - 6.000 1 12x18

2.938 - 5.938 Standard

6.000 - 6.500 1 12x14

7.000 134x14

W 4.000 - 8.000 Made to order

S 5.500 - 10.000 Made to order

Standard Keyseat Dimensions

Shaft Diameter (in)

Keyseat (in) Key (in)

Width Depth Width Depth

0.313 - 0.438 332 364 332 332

0.500 - 0.563 18116 1818

0.625 - 0.875 316 332 316 316

0.938 - 1.250 14181414

1.313 - 1.375 516 532 516 516

1.438 - 1.750 38316 3838

1.813 - 2.250 12141212

2.313 - 2.750 58516 5858

2.813 - 3.250 34383434

3.313 - 3.750 78716 7878

3.813 - 4.500 1 1211

4.563 - 5.500 1 1458114114

5.563 - 6.500 1 1234112112

6.563 - 7.500 13434134112

7.563 - 9.000 2 3421

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 met-

ric 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 ra-

dius of the shaft to the center of the keyway. One of the following

methods should be used to specify keyways:

English: Metric:

W x T1Keyway W x T Key

W x T Key W x h Keyway

Unless otherwise noted, the keyway in the shaft is assumed to be

standard. Also, T1and T2are not necessarily equal.

The metric system does not refer to keyseat or keyway dimen-

sions 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 met-

ric bored bushings with millimeter keyways will be either of the fol-

lowing:

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

Bore

(mm)

Keyway (WxT)

(mm)

Key Size (ref.)

(mm)

14, 16 5 X 2.3 5 X 5

1008 18, 19, 20, 22 6 X 2.8 6 X 6

24 8 X 3.3 8 X 7

14*, 16 5 X 2.3 5 X 5

1108 18, 19, 20, 22 6 X 2.8 6 X 6

24, 25 8 X 3.3 8 X 7

14, 16 5 X 2.3 5 X 5

1210 18, 19, 20, 22* 6 X 2.8 6 X 6

24, 25, 28, 30 8 X 3.3 8 X 7

14*, 16* 5 X 2.3 5 X 5

18*, 19, 20, 22 6 X 2.8 6 X 6

1610 24, 25, 28, 30 8 X 3.3 8 X 7

32, 35, 38 10 X 3.3 10 X 8

40 12 X 3.3 12 X 8

14, 16 5 X 2.3 5 X 5

18, 19, 20, 22 6 X 2.8 6 X 6

2012 24, 25, 28, 30 8 X 3.3 8 X 7

32, 35, 38 10 X 3.3 10 X 8

40, 42 12 X 3.3 12 X 8

45, 48* 14 X 3.8 14 X 9

14, 16 5 X 2.3 5 X 5

18, 19*, 20, 22 6 X 2.8 6 X 6

24, 25, 28, 30 8 X 3.3 8 X 7

2517 32, 35, 38 10 X 3.3 10 X 8

40, 42 12 X 3.3 12 X 8

45, 48, 50 14 X 3.8 14 X 9

55 16 X 4.3 16 X 10

60, 65* 18 X 4.4 18 X 11

24, 25, 28, 30* 8 X 3.3 8 X 7

32*, 35*, 38* 10 X 3.3 10 X 8

40, 42* 12 X 3.3 12 X 8

3020 45, 48, 50 14 X 3.8 14 X 9

55 16 X 4.3 16 X 10

60, 65 18 X 4.4 18 X 11

70*, 75* 20 X 4.9 20 X 12

* Non-stock, made to order bushing

Page 122 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 pat-

tern, 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 break-

age.

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, precau-

tions 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 approxi-

mately half of the recommended torque; see table below).

Note: Do not use worn hex key wrenches. Doing so may re-

sult 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 rec-

ommended 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

1. Loosen and remove all mounting screws.

2. Insert screws into all jack screw holes indicated by “•”

(see figure above).

3. Loosen the bushing by alternately tightening the screws in

small but equal increments until the tapered sprocket and

bushing surfaces disengage.

The Driving Force in Power Transmission. Page 123

Sprocket Installation

Bushing

Style

Bolts Torque Wrench

Qty. Size lb-ft lb-in

1008 2 1/4-20 x 1/2 4.6 55

1108 2 1/4-20 x 1/2 4.6 55

1210 2 3/8-16 x 5/8 14.6 175

1610 2 3/8-16 x 5/8 14.6 175

1615 2 3/8-16 x 5/8 14.6 175

2012 2 7/16-14 x 7/8 23.3 280

2517 2 1/2-13 x 1 35.8 430

3020 2 5/8-11 x 1 1/4 66.7 800

3525 3 1/2-13 x 1 1/2 83.3 1000

3535 3 1/2-13 x 1 1/2 83.3 1000

4030 3 5/8-11 x 1 3/4 141.7 1700

4040 3 5/8-11 x 1 3/4 142 1700

4535 3 3/4-10 x 2 204.2 2450

4545 3 3/4-10 x 2 204 2450

5040 3 7/8-9 x 2 1/4 258 3100

6050 3 1 1/4-7 x 3 1/2 652 7820

7060 4 1 1/4-7 x 3 1/2 652 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.

QD Type Sprocket Installation and Removal

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 re-

duce the possibility of bushing breakage during disassem-

bly.

Note: Do not lubricate the bushing taper, hub taper, bushing

bore, or the shaft. Doing so could result in sprocket break-

age.

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 install-

ing large or heavy parts in Position One (see figure above), it

may be easier to mount the key and bushing onto the shaft

first then place the sprocket on the bushing and align the

holes.

Note: When mounting sprockets on a vertical shaft, precau-

tions must be taken to positively prevent the sprocket and/or

bushing from falling during installation.

4. Alternately tighten the cap screws until the sprocket and

bushing tapers are completely seated together (at approxi-

mately half the recommended torque).

5. Check the alignment and sprocket runout (wobble), and cor-

rect as necessary.

6. Continue alternate tightening of the cap screws to the rec-

ommended 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.

7. Tighten the set screw, when available, to hold the key se-

curely 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 dis-

engage.

Note: Excessive or unequal pressure on the cap screws can

break the bushing flange, making removal nearly impossible

without destroying the sprocket.

Page 124 The Gates Rubber Company

Conventional Mount Reverse Mount

Sprocket Installation

Bushing

Style

Bolts Torque Wrench

Qty. Size lb-ft lb-in

H 2 1/4 x 3/4 7.9 95

JA 3 10-24 x 1 4.5 54

SH & SDS 3 1/4-20 x 1 3/8 9.0 108

SD 3 1/4-20 x 1 7/8 9.0 108

SK 3 5/16-18 x 2 15.0 180

SF 3 3/8-16 x 2 30.0 360

E 3 1/2-13 x 2 3/4 60.0 720

F 3 9/16-12 x 3 5/8 75.0 900

J 3 5/8-11 x 4 1/2 135.0 1620

M 4 3/4-10 x 6 3/4 225.0 2700

N 4 7/8-9 x 8 300.0 3600

P 4 1-8 x 9 1/2 450.0 5400

W 4 1 1/8-7 x 11 1/2 600.0 7200

S 5 1 1/4-7 x 15 1/2 750.0 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.

Belt Drive Tensioners

(Double Adjustable)

PowerGrip®GT®2 Idler Sprockets

The Driving Force in Power Transmission. Page 125

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) M

(Threads) N

(in) P

(in) Q

(in) Weight

(lb)

7720-2010 8mm Pitch

PowerGrip GT2 10-IDL-BRAK2 4.63 3.50 1.75 2.00 2.06 3.06 0.38 1.50 0.56 34-16 1.00 1.88 1.75 2.7

7720-2020 14mm Pitch

PowerGrip GT2 20-IDL-BRAK2 6.94 5.25 2.63 5.00 3.00 4.56 0.63 2.38 1.00 1-14 1.63 2.94 0.75 10.8

TAP

PowerGrip®GT®2 Idler Dimensions

Product

No. Use

With Part

No. Size

Designation

Belt

Width

(mm) No. of

Teeth O.D.

(in)

Ref.

(in) C

(in) D

(in)

Ref.

(in)

(Threads)

(in)

Ref.

(in) H

(in) J

(in) Wt.

(lb)

7720-1740 8mm Pitch

PowerGrip GT2

20-SPK2-IDL 32S-8MGT-20 20 32 3.154 1.25 0.50 1.24 1.56 34-16 0.56 2.75 — 1.1

7720-1750 30-SPK2-IDL 36S-8MGT-30 30 36 3.555 1.91 0.75 1.86 1.63 34-16 — — — 2.0

7720-1760 50-SPK2-IDL 36S-8MGT-50 50 36 3.555 1.91 0.75 2.91 1.69 34-16 0.69 3.13 — 2.1

7720-1850 14mm Pitch

PowerGrip GT2

40-SPK2-IDL 30S-14MGT-40 40 30 5.153 2.55 1.00 2.06 2.25 1-14 0.25 4.38 — 12.0

7720-1860 55-SPK2-IDL 34S-14MGT-55 55 34 5.855 3.38 0.56 3.33 2.25 1-14 1.00 4.88 4.34 15.6

7720-1870 85-SPK2-IDL 34S-14MGT-85 85 34 5.855 3.38 0.31 4.20 2.25 1-14 1.00 4.88 4.34 16.7

7720-1880 115-SPK2-IDL 34S-14MGT-115 115 34 5.855 3.38 0.19 5.61 2.25 1-14 1.09 4.88 4.34 23.1

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.

Sprocket Specification Tables

5mm Pitch Sprocket Diameters

Page 126 The Gates Rubber Company

No.

Grooves

Diameters

(in)

P.D. O.D.

18 28.65 27.51

1.128 1.083

19 30.24 29.10

1.191 1.146

20 31.83 30.69

1.253 1.208

21 33.42 32.28

1.316 1.271

22 35.01 33.87

1.379 1.334

23 36.61 35.47

1.441 1.396

24 38.20 37.06

1.504 1.459

25 39.79 38.65

1.566 1.521

26 41.38 40.24

1.629 1.584

27 42.97 41.83

1.692 1.647

28 44.56 43.42

1.754 1.709

29 46.15 45.01

1.817 1.772

30 47.75 46.61

1.880 1.835

31 49.34 48.20

1.942 1.897

32 50.93 49.79

2.005 1.960

33 52.52 51.38

2.068 2.023

34 54.11 52.97

2.130 2.085

35 55.70 54.56

2.193 2.148

36 57.30 56.16

2.256 2.211

37 58.89 57.75

2.318 2.273

38 60.48 59.34

2.381 2.336

39 62.07 60.93

2.444 2.399

40 63.66 62.52

2.506 2.461

41 65.25 64.11

2.569 2.524

42 66.85 65.71

2.632 2.587

43 68.44 67.30

2.694 2.649

44 70.03 68.89

2.757 2.712

45 71.62 70.48

2.820 2.775

46 73.21 72.07

2.882 2.837

No.

Grooves

Diameters

(in)

P.D. O.D.

47 74.80 73.66

2.945 2.900

48 76.39 75.25

3.008 2.963

49 77.99 76.85

3.070 3.025

50 79.58 78.44

3.133 3.088

51 81.17 80.03

3.196 3.151

52 82.76 81.62

3.258 3.213

53 84.35 83.21

3.321 3.276

54 85.94 84.80

3.384 3.339

55 87.54 86.40

3.446 3.401

56 89.13 87.99

3.509 3.464

57 90.72 89.58

3.572 3.527

58 92.31 91.17

3.634 3.589

59 93.90 92.76

3.697 3.652

60 95.49 94.35

3.760 3.715

61 97.08 95.94

3.822 3.777

62 98.68 97.54

3.885 3.840

63 100.27 99.13

3.948 3.903

64 101.86 100.72

4.010 3.965

65 103.45 102.31

4.073 4.028

66 105.04 103.90

4.136 4.091

67 106.63 105.49

4.198 4.153

68 108.23 107.09

4.261 4.216

69 109.82 108.68

4.324 4.279

70 111.41 110.27

4.386 4.341

71 113.00 111.86

4.449 4.404

72 114.59 113.45

4.511 4.466

73 116.18 115.04

4.574 4.529

74 117.77 116.63

4.637 4.592

75 119.37 118.23

4.699 4.654

No.

Grooves

Diameters

(in)

P.D. O.D.

76 120.96 119.82

4.762 4.717

77 122.55 121.41

4.825 4.780

78 124.14 123.00

4.887 4.842

79 125.73 124.59

4.950 4.905

80 127.32 126.18

5.013 4.968

81 128.92 127.78

5.075 5.030

82 130.51 129.37

5.138 5.093

83 132.10 130.96

5.201 5.156

84 133.69 132.55

5.263 5.218

85 135.28 134.14

5.326 5.281

86 136.87 135.73

5.389 5.344

87 138.46 137.32

5.451 5.406

88 140.06 138.92

5.514 5.469

89 141.65 140.51

5.577 5.532

90 143.24 142.10

5.639 5.594

91 144.83 143.69

5.702 5.657

92 146.42 145.28

5.765 5.720

93 148.01 146.87

5.827 5.782

94 149.61 148.47

5.890 5.845

95 151.20 150.06

5.953 5.908

96 152.79 151.65

6.015 5.970

97 154.38 153.24

6.078 6.033

98 155.97 154.83

6.141 6.096

99 157.56 156.42

6.203 6.158

100 159.15 158.01

6.266 6.221

101 160.75 159.61

6.329 6.284

102 162.34 161.20

6.391 6.346

103 163.93 162.79

6.454 6.409

104 165.52 164.38

6.517 6.472

No.

Grooves

Diameters

(in)

P.D. O.D.

105 167.11 165.97

6.579 6.534

106 168.70 167.56

6.642 6.597

107 170.30 169.16

6.705 6.660

108 171.89 170.75

6.767 6.722

109 173.48 172.34

6.830 6.785

110 175.07 173.93

6.893 6.848

111 176.66 175.52

6.955 6.910

112 178.25 177.11

7.018 6.973

113 179.85 178.71

7.081 7.036

114 181.44 180.30

7.143 7.098

115 183.03 181.89

7.206 7.161

116 184.62 183.48

7.268 7.223

117 186.21 185.07

7.331 7.286

118 187.80 186.66

7.394 7.349

119 189.39 188.25

7.456 7.411

120 190.99 189.85

7.519 7.474

121 192.58 191.44

7.582 7.537

122 194.17 193.03

7.644 7.599

123 195.76 194.62

7.707 7.662

124 197.35 196.21

7.770 7.725

125 198.94 197.80

7.832 7.787

126 200.54 199.40

7.895 7.850

127 202.13 200.99

7.958 7.913

128 203.72 202.58

8.020 7.975

129 205.31 204.17

8.083 8.038

130 206.90 205.76

8.146 8.101

131 208.49 207.35

8.208 8.163

132 210.08 208.94

8.271 8.226

133 211.68 210.54

8.334 8.289

No.

Grooves

Diameters

(in)

P.D. O.D.

134 213.27 212.13

8.396 8.351

135 214.86 213.72

8.459 8.414

136 216.45 215.31

8.522 8.477

137 218.04 216.90

8.584 8.539

138 219.63 218.49

8.647 8.602

139 221.23 220.09

8.710 8.665

140 222.82 221.68

8.772 8.727

141 224.41 223.27

8.835 8.790

142 226.00 224.86

8.898 8.853

143 227.59 226.45

8.960 8.915

144 229.18 228.04

9.023 8.978

145 230.77 229.63

9.086 9.041

146 232.37 231.23

9.148 9.103

147 233.96 232.82

9.211 9.166

148 235.55 234.41

9.274 9.229

149 237.14 236.00

9.336 9.291

150 238.73 237.59

9.399 9.354

151 240.32 239.18

9.462 9.417

152 241.92 240.78

9.524 9.479

153 243.51 242.37

9.587 9.542

154 245.10 243.96

9.650 9.605

155 246.69 245.55

9.712 9.667

156 248.28 247.14

9.775 9.730

157 249.87 248.73

9.838 9.793

158 251.46 250.32

9.900 9.855

159 253.06 251.92

9.963 9.918

160 254.65 253.51

10.026 9.981

See Page 116 for sprocket O.D. tolerances.

Sprocket Specification Tables

8mm Pitch Sprocket Diameters

The Driving Force in Power Transmission. Page 127

No.

Grooves

Diameters

(in)

P.D. O.D.

22 56.02 54.65

2.206 2.152

23 58.57 57.20

2.306 2.252

24 61.12 59.74

2.406 2.352

25 63.66 62.29

2.506 2.452

26 66.21 64.84

2.607 2.553

27 68.75 67.38

2.707 2.653

28 71.30 69.93

2.807 2.753

29 73.85 72.48

2.907 2.853

30 76.39 75.02

3.008 2.954

31 78.94 77.57

3.108 3.054

32 81.49 80.12

3.208 3.154

33 84.03 82.66

3.308 3.254

34 86.58 85.21

3.409 3.355

35 89.13 87.76

3.509 3.455

36 91.67 90.30

3.609 3.555

37 94.22 92.85

3.709 3.655

38 96.77 95.39

3.810 3.756

39 99.31 97.94

3.910 3.856

40 101.86 100.49

4.010 3.956

41 104.41 103.03

4.110 4.056

42 106.95 105.58

4.211 4.157

43 109.50 108.13

4.311 4.257

44 112.05 110.67

4.411 4.357

45 114.59 113.22

4.511 4.457

46 117.14 115.77

4.612 4.558

47 119.68 118.31

4.712 4.658

48 122.23 120.86

4.812 4.758

49 124.78 123.41

4.912 4.858

50 127.32 125.95

5.013 4.959

51 129.87 128.50

5.113 5.059

52 132.42 131.05

5.213 5.159

53 134.96 133.59

5.314 5.259

54 137.51 136.14

5.414 5.360

55 140.06 138.68

5.514 5.460

No.

Grooves

Diameters

(in)

P.D. O.D.

56 142.60 141.23

5.614 5.560

57 145.15 143.78

5.715 5.660

58 147.70 146.32

5.815 5.761

59 150.24 148.87

5.915 5.861

60 152.79 151.42

6.015 5.961

61 155.34 153.96

6.116 6.062

62 157.88 156.51

6.216 6.162

63 160.43 159.06

6.316 6.262

64 162.97 161.60

6.416 6.362

65 165.52 164.15

6.517 6.463

66 168.07 166.70

6.617 6.563

67 170.61 169.24

6.717 6.663

68 173.16 171.79

6.817 6.763

69 175.71 174.34

6.918 6.864

70 178.25 176.88

7.018 6.964

71 180.80 179.43

7.118 7.064

72 183.35 181.97

7.218 7.164

73 185.89 184.52

7.319 7.265

74 188.44 187.07

7.419 7.365

75 190.99 189.61

7.519 7.465

76 193.53 192.16

7.619 7.565

77 196.08 194.71

7.720 7.666

78 198.63 197.25

7.820 7.766

79 201.17 199.81

7.920 7.866

80 203.72 202.35

8.020 7.966

81 206.26 2.4.89

8.121 8.067

82 208.81 207.44

8.221 8.167

83 211.36 209.99

8.321 8.267

84 213.90 212.53

8.421 8.367

85 216.45 215.08

8.522 8.468

86 219.00 217.63

8.622 8.568

87 221.54 220.17

8.722 8.668

88 224.09 222.72

8.822 8.768

89 226.64 225.27

8.923 8.869

No.

Grooves

Diameters

(in)

P.D. O.D.

90 229.18 227.81

9.023 8.969

91 231.73 230.36

9.123 9.069

92 234.28 232.90

9.223 9.169

93 236.82 235.45

9.324 9.270

94 239.37 238.00

9.424 9.370

95 241.92 240.54

9.524 9.470

96 244.46 243.09

9.624 9.570

97 247.01 245.64

9.725 9.671

98 249.55 248.18

9.825 9.771

99 252.10 250.73

9.925 9.871

100 254.65 253.28

10.025 9.971

101 257.19 255.82

10.126 10.072

102 259.74 258.37

10.226 10.172

103 262.29 260.92

10.326 10.272

104 264.83 263.46

10.427 10.372

105 267.38 266.01

10.527 10.473

106 269.93 268.56

10.628 10.573

107 272.47 271.10

10.728 10.673

108 275.02 273.65

10.828 10.771

109 277.57 276.19

10.928 10.874

110 280.11 278.74

11.028 10.974

111 282.66 281.29

11.128 11.074

112 285.21 283.83

11.229 11.175

113 287.75 286.38

11.329 11.275

114 290.30 288.93

11.429 11.375

115 292.85 291.47

11.529 11.475

116 295.39 294.02

11.630 11.576

117 297.94 296.57

11.730 11.676

118 300.48 299.11

11.830 11.776

119 303.03 301.66

11.930 11.876

120 305.58 304.21

12.031 11.977

121 308.12 306.75

12.131 12.077

122 310.67 309.30

12.231 12.177

123 313.22 311.85

12.331 12.277

No.

Grooves

Diameters

(in)

P.D. O.D.

124 315.76 314.39

12.432 12.378

125 318.31 316.94

12.532 12.478

126 320.86 319.48

12.632 12.578

127 323.41 322.03

12.733 12.678

128 325.95 324.58

12.833 12.779

129 328.50 327.12

12.933 12.879

130 331.04 329.67

13.033 12.979

131 333.59 332.22

13.133 13.079

132 336.14 334.76

13.234 13.180

133 338.68 337.31

13.334 13.280

134 341.23 339.86

13.434 13.380

135 343.77 342.40

13.534 13.480

136 346.32 344.95

13.635 13.581

137 348.87 347.50

13.735 13.681

138 351.41 350.04

13.835 13.781

139 353.96 352.59

13.935 13.881

140 356.51 355.14

14.036 13.982

141 359.05 357.68

14.136 14.082

142 361.60 360.23

14.236 14.182

143 364.15 362.77

14.336 14.282

144 366.69 365.32

14.437 14.383

145 369.24 367.87

14.537 14.483

146 371.79 370.41

14.637 14.583

147 374.33 372.96

14.737 14.683

148 376.88 375.51

14.838 14.784

149 379.43 378.05

14.938 14.884

150 381.97 380.60

15.038 14.984

151 384.52 353.15

15.138 15.084

152 387.06 385.70

15.239 15.185

153 389.61 388.24

15.339 15.285

154 392.16 390.79

15.439 15.385

155 394.70 393.33

15.510 15.486

156 397.25 395.88

15.640 15.586

157 399.80 398.43

15.740 15.686

No.

Grooves

Diameters

(in)

P.D. O.D.

158 402.34 400.97

15.840 15.786

159 404.89 403.52

15.941 15.887

160 407.44 406.07

16.041 15.987

161 409.98 408.61

16.141 16.087

162 412.53 411.16

16.241 16.187

163 415.08 413.70

16.342 16.288

164 417.62 416.25

16.442 16.388

165 420.17 418.80

16.542 16.488

166 422.72 421.34

16.642 16.588

167 425.26 423.89

16.743 16.689

168 427.81 426.44

16.843 16.789

169 430.35 428.98

16.943 16.889

170 432.90 431.53

17.043 16.989

171 435.45 434.08

17.144 17.090

172 437.99 436.62

17.244 17.190

173 440.54 439.17

17.344 17.290

174 443.09 441.72

17.444 17.390

175 445.63 444.26

17.544 17.491

176 448.18 446.81

17.645 17.591

177 450.73 449.36

17.745 17.691

178 453.27 451.90

17.845 17.791

179 455.82 454.45

17.946 17.892

180 458.37 456.99

18.046 17.992

181 460.91 459.54

18.146 18.092

182 463.46 462.09

18.246 18.192

183 466.01 464.63

18.347 18.293

184 468.55 467.18

18.447 18.393

185 471.10 469.73

18.547 18.493

186 473.65 472.27

18.647 18.593

187 476.19 474.82

18.748 18.694

188 478.74 477.37

18.848 18.794

189 481.28 479.91

18.948 18.894

190 483.83 482.46

19.048 18.994

191 486.38 485.01

19.149 19.095

See Page 116 for sprocket O.D. Tolerances.

Sprocket Specification Tables

14mm Pitch Sprocket Diameters

Page 128 The Gates Rubber Company

No.

Grooves

Diameters

(in)

P.D. O.D.

28 124.78 121.98

4.912 4.802

29 129.23 126.44

5.088 4.978

30 133.69 130.90

5.263 5.153

31 138.15 135.35

5.439 5.329

32 142.60 139.81

5.614 5.504

33 147.06 144.27

5.790 5.680

34 151.52 148.72

5.965 5.855

35 155.98 153.18

6.141 6.031

36 160.43 157.63

6.316 6.206

37 164.88 162.09

6.492 6.382

38 169.34 166.55

6.667 6.557

39 173.80 171.00

6.842 6.732

40 178.25 175.46

7.018 6.908

41 182.71 179.92

7.193 7.083

42 187.17 184.37

7.369 7.259

43 191.62 188.83

7.544 7.434

44 196.08 193.28

7.720 7.610

45 200.53 197.74

7.895 7.785

46 204.99 202.20

8.071 7.961

47 209.45 206.65

8.246 8.136

48 213.90 211.11

8.421 8.311

49 218.36 215.57

8.597 8.487

50 222.82 220.02

8.772 8.662

51 227.27 224.48

8.948 8.838

52 231.73 228.94

9.123 9.013

53 236.19 233.39

9.299 9.189

54 240.64 237.85

9.474 9.364

55 245.10 242.30

9.650 9.540

56 249.55 246.76

9.825 9.715

57 254.01 251.22

10.000 9.890

58 258.47 255.67

10.176 10.066

59 262.92 260.13

10.351 10.241

60 267.38 264.59

10.527 10.417

61 271.84 269.04

10.702 10.592

62 276.29 273.50

10.878 10.768

63 280.75 277.95

11.053 10.943

64 285.21 282.41

11.229 11.119

No.

Grooves

Diameters

(in)

P.D. O.D.

65 289.66 286.87

11.404 11.294

66 294.12 291.32

11.579 11.469

67 298.57 295.78

11.755 11.645

68 303.03 300.24

11.930 11.820

69 307.49 304.69

12.106 11.996

70 311.94 309.15

12.281 12.171

71 316.40 313.61

12.457 12.347

72 320.86 318.06

12.632 12.522

73 325.31 322.52

12.808 12.698

74 329.77 326.97

12.983 12.873

75 334.22 331.43

13.158 13.048

76 338.68 335.89

13.334 13.224

77 343.14 340.34

13.509 13.399

78 347.59 344.80

13.685 13.575

79 352.05 349.26

13.860 13.750

80 356.51 353.71

14.036 13.926

81 360.96 358.17

14.211 14.101

82 365.42 362.63

14.387 14.277

83 369.88 367.08

14.562 14.452

84 374.33 371.54

14.737 14.627

85 378.79 375.99

14.913 14.803

86 383.24 380.45

15.068 14.978

87 387.70 384.91

15.264 15.154

88 392.16 389.36

15.439 15.329

89 396.61 393.82

15.615 15.505

90 401.07 398.28

15.790 15.680

91 405.53 402.73

15.966 15.856

92 409.98 407.19

16.141 16.031

93 414.44 411.64

16.316 16.206

94 418.90 416.10

16.492 16.382

95 423.35 420.56

16.667 16.557

96 427.81 425.01

16.843 16.733

97 432.26 429.47

17.018 16.908

98 436.72 433.93

17.194 17.084

99 441.18 438.38

17.369 17.259

100 445.63 442.84

17.545 17.435

101 450.09 447.30

17.720 17.610

No.

Grooves

Diameters

(in)

P.D. O.D.

102 454.55 451.75

17.895 17.785

103 459.00 456.21

18.071 17.961

104 463.46 460.66

18.246 18.136

105 467.92 465.12

18.422 18.312

106 472.37 469.58

18.597 18.487

107 476.83 474.03

18.773 18.663

108 481.28 478.49

18.948 18.838

109 485.74 482.95

19.124 19.014

110 490.20 487.40

19.299 19.189

111 494.65 491.86

19.475 19.365

112 499.11 496.32

19.650 19.540

113 503.57 500.77

19.825 19.715

114 508.2 505.23

20.001 19.891

115 512.48 509.68

20.176 20.056

116 516.93 514.14

20.352 20.242

117 521.39 518.60

20.527 20.417

118 525.85 523.05

20.703 20.593

119 530.30 527.51

20.878 20.768

120 534.76 531.97

21.054 20.944

121 539.22 536.42

21.229 21.119

122 543.67 540.88

21.404 21.294

123 548.13 545.34

21.580 21.470

124 552.59 549.79

21.755 21.645

125 557.04 554.25

21.931 21.821

126 561.50 558.70

22.106 21.996

127 565.95 563.16

22.282 22.172

128 570.41 567.62

22.457 22.347

129 574.87 572.07

22.633 22.523

130 579.32 576.53

22.808 22.689

131 583.78 580.99

22.983 22.873

132 588.24 585.44

23.159 23.049

133 592.69 589.90

23.334 23.224

134 597.15 594.35

23.510 23.400

135 601.61 598.81

23.685 23.575

136 606.06 603.27

23.861 23.751

137 610.52 607.72

24.036 23.926

138 614.97 612.18

24.212 24.102

No.

Grooves

Diameters

(in)

P.D. O.D.

139 619.43 616.64

24.387 24.277

140 623.89 621.09

24.562 24.452

141 628.34 625.55

24.738 24.628

142 632.80 630.01

24.913 24.803

143 637.26 634.46

25.089 24.979

144 641.71 638.92

25.264 25.154

145 646.17 643.37

25.440 25.330

146 650.63 647.83

25.615 25.505

147 655.08 652.29

25.791 25.681

148 659.54 656.74

25.966 25.856

149 663.99 661.20

26.141 26.031

150 668.45 665.66

26.317 26.207

151 672.91 670.11

26.492 26.382

152 677.36 674.57

26.668 26.558

153 681.82 679.03

26.843 26.733

154 686.28 683.48

27.019 26.909

155 690.73 687.94

27.194 27.084

156 695.19 692.39

27.370 27.260

157 699.64 696.85

27.545 27.435

158 704.10 701.31

27.720 27.610

159 708.56 705.76

27.896 27.786

160 713.01 710.22

28.071 27.961

161 717.47 714.68

28.247 28.137

162 721.93 719.13

28.422 28.312

163 726.38 723.59

28.598 28.488

164 730.84 728.05

28.773 28.663

165 735.30 782.50

28.949 28.839

166 739.75 736.96

29.124 29.014

167 744.21 741.41

29.299 29.189

168 748.66 745.87

29.475 29.365

169 753.12 750.33

29.650 29.540

170 757.58 754.78

29.826 29.716

171 762.03 759.24

30.001 29.891

172 766.49 763.70

30.177 30.067

173 770.95 768.15

30.352 30.242

174 775.40 772.61

30.528 30.418

175 779.86 777.06

30.703 30.593

No.

Grooves

Diameters

(in)

P.D. O.D.

176 784.32 781.52

30.878 30.768

177 788.77 785.98

31.054 30.944

178 793.23 790.43

31.228 31.119

179 797.68 794.89

31.405 31.295

180 802.14 799.35

31.580 31.470

181 806.60 803.80

31.756 31.646

182 811.05 808.26

31.931 31.821

183 815.51 812.72

32.107 31.997

184 819.97 817.17

32.252 32.172

185 824.42 821.63

32.458 32.348

186 828.88 826.08

32.633 32.523

187 833.33 830.54

32.808 32.698

188 837.79 835.00

32.954 32.874

189 842.25 839.45

33.159 33.049

190 846.70 843.91

33.335 33.225

191 851.16 848.37

33.510 33.400

192 855.62 852.82

33.686 33.576

193 860.07 857.28

33.861 33.751

194 864.53 861.75

34.037 33.927

195 868.98 866.44

34.212 34.112

196 873.44 870.64

34.387 34.277

197 877.90 875.11

34.553 34.453

198 882.35 879.55

34.738 34.628

199 886.81 884.02

34.914 34.804

200 891.27 888.47

35.089 34.979

201 895.72 892.94

35.265 35.155

202 900.18 897.38

35.440 35.330

203 904.64 901.85

35.616 35.506

204 909.09 906.30

35.791 35.681

205 913.55 910.74

35.966 35.856

206 918.00 915.21

36.142 36.032

207 922.46 919.66

36.317 36.207

208 926.92 924.13

36.493 36.383

209 931.37 928.57

36.668 36.558

210 935.83 933.04

36.844 36.734

211 940.29 937.49

37.019 36.909

212 944.74 941.96

37.195 37.085

See Page 116 for sprocket O.D. tolerances.

Sprocket Specification Tables

20mm Pitch Sprocket Diameters

The Driving Force in Power Transmission. Page 129

No.

Grooves

Diameters

(in)

P.D. O.D.

34 216.45 212.13

8.522 8.352

35 222.82 218.50

8.772 8.602

36 229.18 224.87

9.023 8.853

37 235.55 231.23

9.274 9.104

38 241.92 237.60

9.524 9.354

39 248.28 243.96

9.775 9.605

40 254.65 250.33

10.026 9.855

41 261.01 256.70

10.276 10.106

42 267.38 263.06

10.527 10.357

43 273.75 269.43

10.777 10.607

44 280.11 275.79

11.028 10.858

45 286.48 282.16

11.279 11.109

46 292.85 288.53

11.529 11.469

47 299.21 294.89

11.780 11.610

48 305.58 301.26

12.031 11.861

49 311.94 307.63

12.281 12.111

50 318.31 313.99

12.532 12.362

51 324.68 320.36

12.763 12.613

52 331.04 326.72

13.033 12.863

53 337.41 333.09

13.284 13.114

54 343.77 339.46

13.534 13.364

55 350.14 345.82

13.785 13.615

56 356.51 352.19

14.036 13.856

57 362.87 358.56

14.286 14.116

58 369.24 364.92

14.537 14.367

59 375.61 371.29

14.788 14.618

60 381.97 377.65

15.038 14.868

61 388.34 384.02

15.289 15.119

62 394.70 390.39

15.540 15.370

63 401.07 396.75

15.790 15.620

64 407.44 403.12

16.041 15.871

65 413.80 409.48

16.291 16.121

66 420.17 415.85

16.542 16.372

67 426.54 422.22

16.793 16.623

68 432.90 428.58

17.043 16.873

69 439.27 434.95

17.299 17.124

No.

Grooves

Diameters

(in)

P.D. O.D.

70 445.63 441.32

17.545 17.375

71 452.00 447.68

17.795 17.625

72 458.37 454.05

18.046 17.876

73 464.73 460.41

18.297 18.127

74 471.10 466.78

18.547 18.377

75 477.46 473.15

18.798 18.628

76 483.83 479.51

19.048 18.878

77 490.20 485.88

19.299 19.129

78 496.56 492.25

19.550 19.380

79 502.93 498.61

19.800 19.630

80 509.30 504.98

20.051 19.881

81 515.66 511.34

20.302 20.132

82 522.03 517.71

20.552 20.382

83 528.39 524.08

20.803 20.633

84 534.76 530.44

21.054 20.884

85 541.13 536.81

21.304 21.134

86 547.49 543.18

21.555 21.385

87 553.86 549.54

21.805 21.635

88 560.23 555.91

22.056 21.886

89 566.59 562.27

22.307 22.137

90 572.96 568.64

22.557 22.387

91 579.32 575.01

22.808 22.638

92 585.69 581.37

23.059 22.889

93 592.06 587.74

23.309 23.139

94 598.42 594.10

23.560 23.390

95 604.72 600.47

23.811 23.641

96 611.15 606.84

24.061 23.891

97 617.52 613.20

24.312 24.142

98 623.89 619.57

24.562 24.392

99 630.25 625.94

24.813 24.643

100 636.62 632.30

25.064 24.894

101 642.99 638.67

25.314 25.144

102 649.35 645.03

25.565 25.395

103 655.72 651.40

25.816 25.646

104 662.08 657.77

26.066 25.896

105 668.45 664.13

26.317 26.147

No.

Grooves

Diameters

(in)

P.D. O.D.

106 674.82 670.50

26.568 26.398

107 681.18 676.87

26.818 26.648

108 687.55 683.23

27.069 26.899

109 693.92 689.60

27.320 27.150

110 700.28 695.96

27.570 27.400

111 706.65 702.33

27.821 27.651

112 713.01 708.70

28.071 27.901

113 719.38 715.06

28.322 28.152

114 725.75 721.43

28.573 28.403

115 732.11 727.79

28.823 28.653

116 738.48 734.16

29.074 28.904

117 744.85 740.53

29.325 29.155

118 751.21 746.89

29.575 29.405

119 757.58 753.26

29.826 29.656

120 763.94 759.63

30.077 29.907

121 770.31 765.99

30.327 30.157

122 776.68 772.36

30.578 30.408

123 783.04 778.72

30.828 30.658

124 789.41 785.09

31.079 30.909

125 795.77 791.46

31.330 31.160

126 805.14 797.82

31.580 31.410

127 808.51 804.19

31.831 31.661

128 814.87 810.56

32.082 31.912

129 821.24 816.92

32.332 32.162

130 827.61 823.29

32.583 32.413

131 833.97 829.65

32.834 32.664

132 840.34 836.02

33.084 32.914

133 846.70 842.39

33.335 33.165

134 853.07 848.75

33.585 33.415

135 859.44 885.12

33.836 33.666

136 865.80 861.48

34.087 33.917

137 872.17 867.85

34.337 34.167

138 878.54 874.22

34.588 34.418

139 884.90 880.58

34.839 34.669

140 891.27 886.95

35.089 34.919

141 897.63 893.32

35.340 35.170

No.

Grooves

Diameters

(in)

P.D. O.D.

142 904.00 899.68

35.591 35.421

143 910.37 906.05

35.841 35.671

144 916.73 912.41

36.092 35.922

145 923.10 918.78

36.342 36.172

146 929.46 925.15

36.593 36.423

147 935.83 931.51

36.84 36.674

148 942.20 937.88

37.094 36.924

149 948.56 944.25

37.345 37.175

150 954.93 950.61

37.596 37.426

151 961.30 956.98

37.846 37.676

152 967.66 963.34

38.097 37.927

153 974.03 969.71

38.348 38.178

154 980.39 976.08

38.598 38.428

155 986.76 982.44

38.849 38.679

156 993.13 988.81

39.099 38.929

157 999.49 995.18

39.350 39.180

158 1005.86 1001.54

39.601 39.431

159 1012.23 1007.91

39.851 39.681

160 1018.59 1014.27

40.102 39.932

161 1024.96 1020.64

40.353 40.183

162 1031.32 1027.01

40.603 40.433

163 1037.69 1033.37

40.854 40.684

164 1044.06 1039.74

41.105 40.935

165 1050.42 1046.10

41.355 41.185

166 1056.79 1052.47

41.606 41.436

167 1063.16 1058.34

41.856 41.686

168 1069.52 1065.20

42.107 41.937

169 1075.89 1071.57

42.358 42.188

170 1082.25 1077.94

42.608 42.438

171 1088.62 1084.30

42.859 42.689

172 1094.99 1090.67

43.110 42.940

173 1101.35 1097.03

43.350 43.190

174 1107.72 1103.40

43.611 43.441

175 1114.08 1109.77

43.862 43.692

176 1120.45 1116.13

44.112 43.942

177 1126.82 1122.50

44.363 44.193

No.

Grooves

Diameters

(in)

P.D. O.D.

178 1133.18 1128.87

44.614 44.444

179 1139.55 1135.23

44.854 44.694

180 1145.92 1141.60

45.115 44.945

181 1152.28 1147.96

45.365 45.195

182 1158.65 1154.33

45.616 45.446

183 1165.01 1160.70

45.867 45.697

184 1171.38 1167.06

46.117 45.947

185 1177.75 1173.43

46.368 46.198

186 1184.11 1179.79

46.619 46.449

187 1190.48 1186.16

46.859 46.699

188 1196.85 1192.53

47.120 46.950

189 1203.21 1198.89

47.371 47.201

190 1209.58 1205.26

47.621 47.451

191 1215.94 1211.63

47.672 47.702

192 1222.31 1217.99

48.122 47.952

193 1228.68 1224.36

48.373 48.203

194 1235.04 1230.72

48.624 48.454

195 1241.41 1237.09

48.874 48.704

196 1247.77 1243.46

49.125 48.955

197 1254.14 1249.82

49.376 49.206

198 1260.51 1256.19

49.626 49.456

199 1266.87 1262.56

49.577 49.707

200 1273.24 1268.92

50.128 49.958

201 1279.61 1275.29

50.378 50.208

202 1285.97 1281.65

50.629 50.459

203 1292.34 1288.02

50.679 50.709

204 1298.70 1294.39

51.130 50.960

205 1305.07 1300.75

51.381 51.211

206 1311.44 1307.12

51.631 51.461

207 1317.80 1313.48

51.882 51.712

208 1324.17 1319.85

52.133 51.963

209 1330.54 1326.22

52.383 52.213

210 1336.90 1332.58

52.634 62.464

211 1343.27 1338.95

52.885 52.715

212 1349.63 1345.32

53.135 52.965

213 1356.00 1351.68

53.386 53.216

See Page 116 for sprocket O.D. tolerances.

Page 130 The Gates Rubber Company

Section I

Application Design Considerations

When designing synchronous drives, there are several spe-

cial circumstances that may require additional considera-

tion:

1. Gear Motors/ Speed Reducer Drives

2. Electric Motor Frame Dimensions

3. Minimum Sprocket Diameter Recommendations

for Electric Motors

4. High-Driven Inertia

5. Air Moving Drives

6. Linear Motion Drives

7. High Performance Applications

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 diame-

ters, 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.

Overhung load calculations are generally assumed to apply

to the slower output shaft of a speed reducer. It is impor-

tant to note that these calculations apply to higher speed

input shafts as well.

Most speed reducer manufacturers publish allowable over-

hung load values for every model in their product line. This

value represents the maximum load that the shaft and bear-

ings 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.

A general formula used to calculate overhung load (OHL) is

as follows:

Speed reducer manufacturers each publish their own specif-

ic 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 con-

junction with the manufacturer’s accompanying overhung

load rating.

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.

ENGINEERING DATA

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 serv-

ice factor applied

KLCF = Overhung load connection factor (1.3 for all

synchronous belt drives)

KSF = Service factor for the speed reducer (avail-

able 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

Figure 3 - Overhung Load

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:

•Increasing sprocket diameters

•Reducing belt width

•Mounting the sprocket closer to the speed reducer

outboard bearing

Increasing the sprocket diameter not only reduces calculat-

ed 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 calculat-

ed 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 depend-

ing on the application and its requirements. If motor shaft

length, motor shaft diameter, or clearance issues are a con-

cern, refer to the motor dimension table on this page. The

table lists common general purpose electric motors by

frame size.

Page 131The Driving Force in Power Transmission

Shaft

Dia.

Shaft

Length

Min.

Frame Shaft Dia. (in) Shaft Length Key (in)

Size Min. (in)

48 1/2 — 3/64 Flat

56 5/8 — 3/16 x 3/16 x 1-3/8

143T 7/8 2 3/16 x 3/16 x 1-3/8

145T 7/8 2 3/16 x 3/16 x 1-3/8

182 7/8 2 3/16 x 3/16 x 1-3/8

182T 1-1/8 2-1/2 1/4 x 1/4 x 1-3/4

184 7/8 2 3/16 x 3/16 x 1-3/8

184T 1-1/8 2-1/2 1/4 x 1/4 x 1-3/4

213 1-1/8 2-3/4 1/4 x 1/4 x 2

213T 1-3/8 3-1/8 5/16 x 5/16 x 2-3/8

215 1-1/8 2-3/4 1/4 x 1/4 x 2

215T 1-3/8 3-1/8 5/16 x 5/16 x 2-3/8

254U 1-3/8 3-1/2 5/16 x 5/16 x 2-3/4

254T 1-5/8 3-3/4 3/8 x 3/8 x 2-7/8

256U 1-3/8 3-1/2 5/16 x 5/16 x 3-3/4

256T 1-5/8 3-3/4 3/8 x 3/8 x 2-7/8

284U 1-5/8 4-5/8 3/8 x 3/8 x 3-3/4

284T 1-7/8 4-3/8 1/2 x 1/2 x 3-1/4

284TS 1-5/8 3 3/8 x 3/8 x 1-7/8

286U 1-5/8 4-5/8 3/8 x 3/8 x 3-3/4

286T 1-7/8 4-3/8 1/2 x 1/2 x 3-1/4

286TS 1-5/8 3 3/8 x 3/8 x 1-7/8

324U 1-7/8 5-3/8 1/2 x 1/2 x 4-1/4

324T 2-1/8 5 1/2 x 1/2 x 3-7/8

324TS 1-7/8 3-1/2 1/2 x 1/2 x 2

326U 1-7/8 5-3/8 1/2 x 1/2 x 4-1/4

326T 2-1/8 5 1/2 x 1/2 x 3-7/8

326TS 1-7/8 3-1/2 1/2 x 1/2 x 2

364U 2-1/8 6-1/8 1/2 x 1/2 x 5

364US 1-7/8 3-1/2 1/2 x1/2 x 2

364T 2-3/8 5-5/8 5/8 x 5/8 x 4-1/4

364TS 1-7/8 3-1/2 1/2 x 1/2 x 2

365U 2-1/8 6-1/8 1/2 x 1/2 x 5

365US 1-7/8 3-1/2 1/2 x 1/2 x 2

365T 2-3/8 5-5/8 5/8 x 5/8 x 4-1/4

365TS 1-7/8 3-1/2 1/2 x 1/2 x 2

404U 2-3/8 6-7/8 5/8 x 5/8 x 5-1/2

404US 2-1/8 4 1/2 x 4 x 2-3/4

404T 2-7/8 7 3/4 x 3/4 x 5-5/8

404TS 2-1/8 4 1/2 x 1/2 x 2-3/4

405U 2-3/8 6-7/8 5/8 x 5/8 x 5-1/2

405US 2-1/8 4 1/2 x 1/2 x 2-3/4

405T 2-7/8 7 3/4 x 3/4 x 5-5/8

405TS 2-1/8 4 1/2 x 1/2 x 2-3/4

444U 2-7/8 8-3/8 3/4 x 3/4 x 7

444US 2-1/8 4 1/2 x 1/2 x 2-3/4

444T 3-3/8 8-1/4 7/8 x 7/8 x 6-7/8

444TS 2-3/8 4-1/2 5/8 x 5/8 x 3

445U 2-7/8 8-3/8 3/4 x 3/4 x 7

445US 2-1/8 4 1/2 x 1/2 x 2-3/4

445T 3-3/8 8-1/4 7/8 x 7/8 x 6-7/8

445TS 2-3/8 4-1/2 5/8 x 5/8 x 3

447T 3-3/8 8-1/4 7/8 x 7/8 x 6-7/8

447TS 2-3/8 4-1/2 5/8 x 5/8 x 3

449T 3-3/8 8-1/4 7/8 x 7/8 x 6-7/8

449TS 2-3/8 4-1/2 5/8 x 5/8 x 3

Motor Frame Dimensions

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-1-

14-42; 11/78, MG-1-14-43; 1/68, and a composite of electric

motor manufacturers data. Values are generally conserva-

tive, and specific motors may permit the use of a smaller

sprocket or sheave. Consult the motor manufacturer.

4. High-Driven Inertia

Many drives, such as piston compressors, punch presses

and crushers, depend on the driveN pulley acting as a fly-

wheel. This flywheel effect, or WR2is used to help moderate

or smooth out fluctuations in driven load and speed. Failure

to compensate for this during a redesign can result in pre-

mature 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-to-

order 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 partic-

ularly rigid, which can create belt tension and drive align-

ment 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 con-

version. 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 diam-

eters. 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.

Page 132 The Gates Rubber Company

Horsepower at Synchronous Speed (rpm) Synchronous

Belts

Motor Shaft 3600 1800 1200 900 Min.

Frame Dia. (3450) (1750) (1160) (870) Pitch

Code (in) Dia. (in)

143T 0.875 1-1/2 1 3/4 1/2 2.0

145T 0.875 2—3 1-1/2— 2 1 3/4 2.2

182T 1.125 3 3 1-1/2 1 2.2

182T 1.125 5 — — — 2.4

184T 1.125 — — 2 1-1/2 2.2

184T 1.125 5 — — — 2.2

184T 1.125 7-1/2 5 — — 2.7

213T 1.375 7-1/2—10 7-1/2 3 2 2.7

215T 1.375 10 — 5 3 2.7

215T 1.375 15 10 — — 3.4

254T 1.625 15 — 7-1/2 5 3.4

254T 1.625 20 15 — — 4.0

256T 1.625 20—25 — 10 7-1/2 4.0

256T 1.625 — 20 — — 4.0

284T 1.875 — — 15 10 4.0

284T 1.875 — 25 — — 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 2.375 — — 40 30 6.1

364T 2.375 — 60 — — 6.7

365T 2.375 — — 50 40 7.4

365T 2.375 — 75 — — 7.7

404T 2.875 — — 60 — 7.2

404T 2.875 — — — 50 7.6

404T 2.875 — 100 — — 7.7

405T 2.875 — — 75 60 9.0

405T 2.875 — 100 — — 7.7

405T 2.875 — 125 — — 9.5

444T 3.375 — — 100 — 9.0

444T 3.375 — — — 75 8.6

444T 3.375 — 125 — — 9.5

444T 3.375 — 150 — — 9.5

445T 3.375 — — 125 — 10.8

445T 3.375 — — — 100 10.8

445T 3.375 — 150 — — 9.5

445T 3.375 — 200 — — 11.9

Motor Frames and Minimum Diameters

for 60 Cycle Electric Motors

Controlled Start Up

An air handling drive with soft start or variable frequency

controller (AC Inverter) is ideal for conversion to synchro-

nous 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 vari-

able frequency controllers.

Fan Speed

The volume of air being transmitted and the required horse-

power 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 syn-

chronous belt drive speed ratio based on a measured

driveN shaft RPM, and not calculated from the theoretical V-

belt 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= Initial Horsepower

HP2= New Horsepower @ New Fan RPM

RPM1= Initial Fan RPM

RPM2= New Fan RPM

6. Linear Motion Drives

In linear motion drives, such as a rack and pinion applica-

tion, the belt is not transmitting a load in the conventional

rotational manner. The two cut ends of the belt are con-

nected 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 allow-

able 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 clamp-

ing 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 motorcy-

cles 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.

Although special considerations may be involved, it is

important to remember that reasonable drive recommenda-

tions can be provided to the designer in most cases.

8. Belt Drive Registration

The three primary factors contributing to belt drive registra-

tion (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 second-

ary position. Potential registration errors that occur during

transport are not considered. Therefore, the primary factor

contributing to registration error in a static registration sys-

tem 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.

Further discussion about each of the factors contributing to

registration error is as follows:

Belt Elongation: Belt elongation, or stretch, occurs natural-

ly 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 sta-

ble, 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 synchro-

nous 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

Page 133The Driving Force in Power Transmission

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 proto-

type drive system is the best means of obtaining realistic

estimations of belt tooth deflection.

Additional guidelines that may be useful in designing regis-

tration 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 lev-

els 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 sur-

rounding environment of the equipment. Laboratory studies

(confirmed by field studies), using highly instrumented

equipment, show a high probability for significant noise gen-

eration at speeds greater than 3,500 feet per minute and

belt widths in excess of 85mm.

Many times a belt drive system, when operating under load,

is not the primary cause for noise. Undersized, poorly lubri-

cated, 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.

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.

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.

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 mini-

mum 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 fas-

tened, such as using mechanical fasteners, welding, shrink-

fit 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.

The primary pitfall in a fixed center design approach is fail-

ure to consider the affects of system tolerance accumula-

tion. 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 toler-

ance accumulation is as follows:

Low Tension:

Long Belt with Small Sprockets on a Short Center Distance

High Tension:

Short Belt with Large Sprockets on a Long 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 occur-

ring 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.

Page 134 The Gates Rubber Company

The most detrimental aspect of fixed center drives is gener-

ally the potentially high tension condition. This condition can

be avoided by adjusting the design center distance. A com-

mon approach in these designs is to reduce the center dis-

tance from the exact calculated value by some small frac-

tion. This results in a drive system that is inherently loose,

but one that has much less probability of yielding excessive-

ly 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.

1. Do not use a fixed center design for power transmis-

sion drives. Consider using a fixed center design only

for lightly loaded or motion transfer applications.

2. Do not use a fixed center design for drives requiring

high motion quality or registration precision.

3. When considering a fixed center design, the center

distance must be held as accurately as possible, typi-

cally 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 pro-

duced with a machining process for accuracy.

Molding and sintering processes are generally not

capable of holding the finished O.D. sufficiently accu-

rate 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 repre-

senting 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 recommenda-

tions, 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 recommend-

ed 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 small-

est loaded sprocket in the system may be more appropriate.

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.

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 recom-

mended 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 spring-

loaded 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.

13. Minimum Belt Wrap

and Tooth Engagement

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 non-

stock drives not listed in the Drive Selection Tables, the

teeth in mesh may be calculated by using this formula:

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.

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.

Page 135The Driving Force in Power Transmission

Teeth in Mesh = 



0.5 − 





D − d





 



 Ng

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

Teeth in Mesh Factor KTM

6 or more 1.00

5 0.80

4 0.60

3 0.40

2 0.20

Teeth In Mesh Correction Factor

14. Adverse Operating Environments

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 environ-

ments where debris is likely. Completely enclosing a syn-

chronous belt drive may be acceptable. Since synchronous

belts generate minimal heat during drive operation, air circu-

lation is not critical except where extremely high tempera-

tures already are present. Depending on the type and abra-

sive characteristics of the debris, excessive wear can be

generated on both belt and sprockets.

Temperature

Belt performance is generally unaffected in ambient temper-

ature environments between -30°and 185°F (-34°and

85°C). Temperature extremes beyond these limits should be

reviewed by Gates Power Transmission Product Application.

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 concen-

tration of the chemical, the time of exposure and the type of

exposure (drip, splash, immersion, etc.). In addition to pos-

sible belt degradation, these chemicals can act as a lubri-

cant 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 rec-

ommended tension is maintained (See Engineering Section

II-8, Belt Installation Tension on page 139).

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 exces-

sive rust, which in the most severe cases may lead to pre-

mature 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.

Section II

Engineering Design Considerations

All synchronous belt drives require proper installation proce-

dures for optimum performance. In addition, topics such as

tooth profile advantages, sprocket rim speed limitations, effi-

ciency, and tolerances are common to all Gates synchro-

nous 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

7. Belt Tolerances

8. Belt Installation Tension

9. Center Distance Allowances for Installation

and Tensioning

10. Drive Alignment

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, tem-

perature extremes, direct sunlight and high ozone environ-

ments. Each belt should be stored In its original package,

avoiding any sharp bends or crimping which will cause dam-

age. 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

Page 136 The Gates Rubber Company

The approximate relationship between a center distance and

belt pitch length is given by the following formula:

Formula 6

Lp = 2C + 1.57(D + d) + (D − d)2

Where: Lp= belt pitch length, inches

D = diameter of large sprocket, inches

d = diameter of small sprocket, inches

C = center distance, inches

Formula 1

The exact center distance can be calculated using an itera-

tive 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 ear-

liest 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 disad-

vantages.

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 ratchet-

ing 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.

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 sys-

tem, the belt and sprocket teeth move substantially tangen-

tially during entry and exit, thus improving significantly the

belts’performance characteristics. This is illustrated in Fig. 4.

4. Static Conductivity

All belts, whether made from rubber or urethane, naturally

build up an electric charge while in operation. While the like-

lihood 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 sig-

nificantly 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 con-

struction have traditionally been considered to be relatively

safe for explosive environments. Conductive belts continu-

ously dissipate their electrical charge into the ferrous

sprockets or sheaves on which they operate. The test pro-

cedure 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 require-

ments specified in RMA Bulletin IP-3-3/1995. Though

PowerGrip belts can be produced in a conductive construc-

tion, it is important to understand that belt conductivity prop-

erties 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 potential-

ly hazardous or explosive environments are designed and

installed in accordance with existing building codes, OSHA

requirements, and/or recognized safety-related organiza-

tions.

Page 137The Driving Force in Power Transmission

Figure 4

A more precise formula is given below:

Formula 7

Lp = 2C Cos ϕ + π (D + d)

2 + π ϕ (D − d)

180

Where: Lp = belt pitch length, inches

C = center distance, inches

D = pitch diameter of large sprocket, inches

d = pitch diameter of small sprocket, inches

ϕ = sin−1 





D − d





 degrees

The approximate center distance can be found by this

formula:

Formula 8

C = K + √



K2 − 32 (D − d)2

Where: K = 4Lp – 6.28 (D + d)

Formula 2

Formula 3

Where:

5. Sprocket Diameter—Speed

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 devel-

oped 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.

6. Efficiency

When properly designed and applied, PowerGrip belt drive

efficiency will be as high as 98%. This high efficiency is pri-

marily due to the positive, no slip characteristic of synchro-

nous 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:

When examining the loss of energy, it is necessary to con-

sider 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

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 92-

98% 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 effi-

ciency may drop as much as 5% or more. If proper mainte-

nance cannot be scheduled for a V-belt drive or it is located

in an inaccessible area, a positive belt drive system should

be considered.

The belt drive is only part of the total system. Motors should

be properly sized for the application. They must have suffi-

cient 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.

Page 138 The Gates Rubber Company

Efficiency, percent = DN RPM × DN Torque

DR RPM × DR Torque × 100

Sprockets Recommended

For maximum performance, we recommend using Gates

PowerGrip belts only with Gates PowerGrip®Sprockets

Increasing DriveN Torque

7. Belt Tolerances

These tolerances are for reference only. For fixed center

drive applications and special tolerances, contact Gates

Power Transmission Product Application.

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 con-

ditions 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.

Page 139The Driving Force in Power Transmission

Stock Belt Center Distance Tolerances

(mm) Center Distance (mm)

Belt Length (in) Tolerance (in)

127 254 0.20

over to ±

5 10 .008

254 381 0.23

over to ±

10 15 .009

381 508 0.25

over to ±

15 20 .010

508 762 0.30

over to ±

20 30 .012

762 1016 0.33

over to ±

30 40 .013

1016 1270 0.38

over to ±

40 50 .015

1270 1524 0.41

over to ±

50 60 .016

1524 1778 0.43

over to ±

60 70 .017

1778 2032 0.46

over to ±

70 80 .018

2032 2286 0.49

over to ±

80 90 .019

2286 2540 0.52

over to ±

90 100 .020

2540 2794 0.54

over to ±

100 110 .021

2794 3048 0.56

over to ±

110 120 .022

3048 3302 0.58

over to ±

120 130 .023

3302 3556 0.60

over to ±

130 140 .024

3556 3810 0.63

over to ±

140 150 .025

3810 4064 0.66

over to ±

150 160 .026

4064 4318 0.69

over to ±

160 170 .027

4318 4572 0.72

over to ±

170 180 .028

4572 .03

over add ± for

180 .001

254

every increment

Stock Belt Center Distance Tolerances

Belt (mm) Belt (mm) Belt (mm)(mm)

Belt Width Lengths (in) Lengths (in) Lengths (in)

(in) over over

0 838 838 1676 1676

to to

0333366 66

11.1 38.1 .8 .8 .8 1.2 .8 1.2

over to + –+– + –

0.438 1.500 0.032 0.032 0.032 0.047 0.032 0.047

38.1 50.8 .8 1.2 1.2 1.2 1.2 1.6

over to + –+– + –

1.500 2.000 0.032 0.047 0.047 0.047 0.047 0.063

50.8 63.5 1.2 1.2 1.2 1.6 1.6 1.6

over to + –+– + –

2.000 2.500 0.047 0.047 0.047 0.063 0.063 0.063

63.5 76.5 1.2 1.6 1.6 1.6 1.6 2.9

over to + –+– + –

2.500 3.000 0.047 0.063 0.063 0.063 0.063 0.078

76.2 101.6 1.6 1.6 1.6 2.0 2.0 2.0

over to + –+– + –

3.000 4.000 0.063 0.063 0.063 0.078 0.078 0.078

101.6 177.8 2.4 2.4 2.4 2.8 2.4 3.2

over to + –+– + –

4.000 7.000 0.094 0.094 0.094 0.109 0.094 0.125

177.8 4.8 6.4

over to + –

7.000 0.188 0.250

Stock Belt Width Tolerances

Span Length, t

Force

Deflection

1/64

per inch

of span

t = √

C2 − 





D −

Belt Width Tolerances

STEP 1: Calculate the required base static

installation tension.

Use Formula 4 to calculate the required base static

installation tension.

Formula 4

Tst = 17.4DHP + mS2, pounds

Where: DHP = Design Horsepower

S = PD x RPM

3820

m = Value from Table 3

PD = Sprocket Pitch Diameter, inches

RPM = Sprocket Speed

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.

If a more appropriately sized drive cannot be designed, min-

imum 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.

Page 140 The Gates Rubber Company

Pitch Belt Width Minimum Tst

m Y (lb) per span

5MR 9mm 0.17 14.90 8.4

PowerGrip GT2

15mm 0.28 24.90 14.1

25mm 0.47 41.50 23.4

20mm 0.58 34.18 18.5

8M 30mm 0.88 51.27 30.0

PowerGrip GT2

50mm 1.46 85.45 52.0

PowerGrip GT

85mm 2.45 145.26 94.5

40mm 1.78 93.04 76.5

14M 55mm 2.44 127.93 120.0

PowerGrip GT2

85mm 3.77 197.72 205.5

PowerGrip GT

115mm 5.11 267.50 291.0

170mm 7.55 395.43 447.5

115mm 7.24 366.98 391.5

20M 170mm 10.71 542.49 603.0

PowerGrip GT2

230mm 14.49 733.96 834.0

290mm 18.27 925.43 1065.0

340mm 21.42 1084.99 1257.5

5M 15mm 0.26 13.32 12.0

PowerGrip HTD

25mm 0.43 22.20 16.5

PowerGrip

1/4 in. 0.07 3.30 3.2

Timing 3/8 in. 0.11 4.90 5.1

PowerGrip

1/2 in. 0.19 10.00 13.0

Timing 3/4 in. 0.29 18.00 19.0

1 in. 0.38 25.00 25.0

3/4 in. 0.34 33.00 54.0

PowerGrip

1 in. 0.46 47.00 72.0

Timing 1-1/2 in. 0.69 73.00 110.0

2 in. 0.92 100.00 140.0

3 in. 1.40 160.00 220.0

PowerGrip

2 in. 2.70 200.00 210.0

Timing 3 in. 4.00 320.00 310.0

4 in. 5.30 460.00 410.0

2 in. 3.50 320.00 260.0

XXH PowerGrip

3 in. 5.30 510.00 390.0

Timing 4 in. 7.00 720.00 520.0

5 in. 8.80 930.00 650.0

Table 3

STEP 2: Calculate the minimum and maximum

recommended deflection forces.

A. Measure the span length of your drive (see sketch).

B. Minimum recommended force =

Span Length, t

Force

Deflection

1/64

per inch

of span

t = √

C2 − 





D − d







Formula 3

deflection force, Min. =

1.2 Tst + 





L



 Y

16 , lbf

C. Maximum recommended force =

Formula 4

deflection force, Min. =

1.3 Tst + 





L



 Y

16 , lbf

Where:T

st = Static tension, lbf

t = span length, inches

L = belt pitch length, inches

Y = constant from Table 1

NOTE: For initial belt installation of a new belt, a recommended tension

of 1.4 Tst to 1.5 Tst value should be used in calculating the deflection

forces. Deflection is 1⁄64 inch per inch of span length or t⁄64.

STEP 3: Applying the tension.

A. At the center of the span (t) apply a force perpendicu-

lar 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 recom-

mended deflection force, the belt should be

loosened.

Formula 5

Formula 6

STEP 2:

STEP 3: Applying the tension.

Calculate the minimum and maximum

recommended deflection forces.

Measure the span length of your drive (see sketch).

1.4

1.5

NOTE: For re-installation of a used belt, a recommended tension of

1.2 Tst to 1.3 Tst value should be used in calculating the

deflection forces.

Where: Tst = Base Static tension, lbf

t = span length, inches

L = belt pitch length, inches

Y= constant from Table 3

Minimum recommended force:

Maximum recommended force:

deflection force, Min. =

deflection force, Max. =

9. Center Distance Allowances for

Installation and Tensioning

Since fixed center drives are not recommended, center dis-

tance allowances for a Gates PowerGrip belt drive are nec-

essary to assure that the belt can be installed without dam-

age 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 installa-

tion shown in the second table below must be added to the

first table data.

10. Drive Alignment

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 differ-

ent 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 nor-

mal drive design procedure. Misalignment of all synchro-

nous 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.

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 opti-

mum drive performance will occur with the belt lightly con-

tacting 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.

Page 141The Driving Force in Power Transmission

ANGULAR MISALIGNMENT

PARALLEL MISALIGNMENT

FLEETING ANGLE

Standard Installation Allowance Tensioning Allowance

Length Belt (mm) (Flanged Sprockets (mm) (All Drives) (mm)

(in) RemovedFor Installation) (in) (in)

Up to 125 0.5 0.5

5 0.02 0.02

125 250 0.8 0.8

Over to

5 10 0.03 0.03

250 500 1.0 0.8

Over to

10 20 0.04 0.03

500 1000 1.8 0.8

Over to

20 40 0.07 0.03

1000 1780 2.8 0.8

Over to

40 70 0.10 0.04

1780 2540 3.3 1.0

Over to

70 100 0.13 0.04

2540 3300 4.1 1.3

Over to

100 130 0.16 0.05

3300 4600 4.8 1.3

Over to

130 180 0.19 0.05

4600 6900 5.6 1.3

Over to

180 270 0.22 0.05

Center Distance Allowance For Installation and Tensioning

One Sprocket (mm) Both Sprockets (mm)

Pitch Flanged (in) Flanged (in)

8.4 12.4

0.080" (MXL) 0.33 0.49

11.7 18.0

0.200" (XL) 0.46 0.71

16.3 21.6

0.375" (L) 0.64 0.85

16.3 24.4

0.500" (H) 0.64 0.85

13.5 19.1

5mm 0.53 0.75

21.8 33.3

8mm 0.86 1.31

31.2 50.0

14mm 1.23 1.97

47.0 77.5

20mm 1.85 3.05

Additional Center Distance Allowance For Installation Over

Flanged Sprockets*

(Add to Installation Allowance In Table No. 4)

* For drives that require installation of the belt over one sprocket at a time, use the value

for “Both Sprockets Flanged”

Figure 5

Table 4

Improper installation of the bushing can result in the bush-

ing / 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.

11. Belt Installation

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.

12. Belt Pull Calculations

When the machine designer requests shaft load calculations

from the drive designer, the following procedure can be

applied:

A. Calculate Belt Span Tensions

Belt pull is the vector sum of TTand TS, the tightside and

slackside tensions. TTand TSmay be calculated using the

following formulas:

Formula 7

TT= 144,067 DHP

(PD)(RPM)

Formula 8

TS= 18,008 DHP

(PD)(RPM)

Where: DHP = Horsepower x Service Factor

PD = Sprocket Pitch Diameter (in)

RPM = Sprocket Speed (rev/min)

B. Solution For Both Magnitude and Direction

The vector sum of TTand TScan be found so that the direc-

tion of belt pull, as well as magnitude, is known. This is nec-

essary 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 TTand 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 TTand TScan be found by graphical vector

addition as shown in Fig. 6. TTand TSvectors are drawn to

a convenient scale and parallel to the tightside and slack-

side, 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

shafts is equal but opposite in direction . For drives using

idlers, both magnitude and direction may be different.

C. Solution For Magnitude Only

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.

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.

Page 142 The Gates Rubber Company

Motor

Tightside

Slackside

Parallel

Parallel to T

Parallel

Resultant Belt Pull

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Figure 6

Figure 7

1. Add TTand TS

2. Using the value of D - d for the drive,

find the vector sum correction factor using

Fig. 7, where:

D = large diameter

d = small diameter

C = center distance

Or, use the arc of contact on the small

sprocket if known.

3. Multiply the sum of TTplus TSby the vector

sum correction factor to find the vector

sum of TTplus TS.

Vector Sum Correction Factor

D - d

1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0

60 70 80 90 100 110 120 130 140 150 160 170 180

Arc of Contact on Small Sprocket, Degrees

For 2-sprocket

Synchronous Drives

0.9

0.8

0.7

0.6

0.5

Vector Sum Correction Factor

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 syn-

chronous drive alone. Bearing loads resulting from a syn-

chronous 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.

14. Self-Generated Tension

All synchronous belt drives exhibit a self-generating or self-

tightening 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 pro-

cedures.

Properly designed and tensioned drives will not be signifi-

cantly 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-ten-

sioning 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.

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.

Page 143The Driving Force in Power Transmission

Formula 12

Load at B,

pounds = Shaft Load x (a + b)

Formula 13

Load at A,

pounds = Shaft Load

x b

Where: a and b = spacing, inches, per Fig. A

Bearing

Load

Bearing

Load

Shaft

Load

Fig. A

Bearing

Load

Bearing

Load

Shaft

Load

A. Overhung Sprocket

Formula 9

Formula 10

B. Sprocket Between Bearings

Figure 8

Load at B, (lb) =

Load at A, (lb) =

Where: a and b = spacing, (in), per Fig. 8

Formula 14

Load at D, pounds = Shaft Load × c

(c + d)

Formula 15

Load at C, pounds = Shaft Load

× d

(c + d)

Where: c and d = spacing, inches, per Fig. B

Fig. B

Formula 11

Formula 12

Figure 9

Load at D (lb) =

Load at C (lb) =

Where: c and d = spacing (in), per Fig. 9

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 The Gates Rubber Company

Troubleshooting

Symptom Diagnosis Possible Remedy

Unusual noise 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.)

Subminimal diameter

Excess load

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

Redesign drive using larger diameters

Redesign drive for increased capacity

Tension loss Weak support structure

Excessive sprocket wear

Fixed (nonadjustable) centers

Excessive debris

Excessive load

Subminimal diameter

Belt, sprockets or shafts running too hot

Unusual belt degradation, such as softening

or melting

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

Reduce ambient drive temperature to

180°F maximum

Belt tracking Belt running partly off unflanged sprocket

Centers exceed 8 times small sprocket

diameter and the large sprocket is not

flanged.

Excessive belt edge wear

Correct alignment

Correct parallel alignment to set belt to track on

both sprockets

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.)

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

Adjust tension to recommended value

Correct alignment

Use proper Gates PowerGrip®GT®2 belt/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

The Driving Force in Power Transmission. Page 145

Symptom Diagnosis Possible Remedy

Tooth shear 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.)

Misaligned drive

Belt undertensioned

Redesign drive for increased capacity

Redesign drive

Replace sprocket

Use inside idler

Use proper Gates PowerGrip GT2 belt/sprocket

Correct alignment

Adjust tension to recommended value

Tensile break Excessive shock load

Subminimal diameter

Improper belt handling and storage prior to

installation

Debris or foreign object in drive

Extreme sprocket runout

Redesign drive for increased capacity

Redesign drive using larger diameters

Follow proper handling and storage procedures

Protect drive

Replace sprocket

Unusual sprocket wear Sprocket has too little wear resistance

(i.e., plastic, aluminum, softer metals)

Misaligned drive

Excessive debris

Excessive load

Too high, too low belt tension

Incorrect belt profile (i.e. GT, etc.)

Use alternate sprocket material

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, hous-

ing, 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.)

Too low or too high belt tension

Bushing or key loose

Use proper Gates PowerGrip GT2 belt/sprocket

Adjust tension to recommended value

Check and reinstall per instructions

Page 146 The Gates Rubber Company

Troubleshooting

Standard Calculations

Required Given Formula

Speed ratio (R) Shaft speeds (rpm) R= rpm (faster shaft speed)

rpm (slower shaft speed)

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. )

Horsepower (hp)

(33,000 lb-ft/min)

Torque (T) in lb-in

Shaft speed (rpm) hp = Txrpm

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= 63,025 x hp

rpm

Effective tension (Te) in lbs

Pulley radius (R) in inches

T=TexR

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=pd x rpm

3.82

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 Dd

=+ ×−+

−

Arc of contact on

smaller pulley (A/Cs)

Pulley diameters (D & d) in inches

Center distance (C) in inches

()

A / Cs 180 Dd 60

=−−×











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

T=.039 x (RPM - rpm) x WR

Flywheel effect (WR2) in lb-ft2Face width of rim (F) in inches

Material density (Z) in lbs/in3

Outside rim diameter (D) in inches

Inside rim diameter (d) in inches

WR = FxZx(D -d)

1467

The Driving Force in Power Transmission. Page 147

Useful Formulas and Calculations

Power Transmission Conversions

FORCE CONVERSION CONSTANTS

TORQUE CONVERSION CONSTANTS

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

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

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

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

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

Page 148 The Gates Rubber Company

Metric to U.S.

Newtons ×3.5969 = Ounces

Newtons ×0.2248 = Pounds

Kilogramsf×2.2046 = Pounds

U.S. to Metric

Ounces

×0.2780 = Newtons

Pounds

×4.4482 = Newtons

Pounds

×0.4536 = Kilograms

Metric to Metric

Kilograms

×9.8067 = Newtons

Newtons ×0.1020 = Kilograms

Metric to U.S.

Newton Meters ×141.6119 = Ounce

Inches

Newton Meters ×8.8508 = Pound

Inches

Newton Meters ×0.7376 = Pound

Feet

Metric to Metric

Newton Meters ×10.1972 = Kilogram

Centimeters

Kilogram

Centimeters ×0.0981 = Newton Meters

Newton Meters ×0.1020 = Kilogram

Meters

Kilogram

Meters ×9.8067 = Newton Meters

U.S. to Metric

Ounce

Inches ×0.0071 = Newton Meters

Pound

Inches ×0.1130 = Newton Meters

Pound

Feet ×1.3558 = Newton Meters

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

MillimetersFractions Decimals

1⁄64 .015625 .397

1⁄32 .03125 .794

3⁄64 .046875 1.191

1⁄16 .0625 1.588

5⁄64 .078125 1.984

3⁄32 .09375 2.381

7⁄64 .109375 2.778

1⁄8.125 3.175

9⁄64 .140625 3.572

5⁄32 .15625 3.969

11⁄64 .171875 4.366

3⁄16 .1875 4.763

13⁄64 .203125 5.159

7⁄32 .21875 5.556

15⁄64 .234375 5.953

1⁄4.250 6.350

17⁄64 .265625 6.747

9⁄32 .28125 7.144

19⁄64 .296875 7.541

5⁄16 .3125 7.938

21⁄64 .328125 8.334

11⁄32 .34375 8.731

23⁄64 .359375 9.128

3⁄8.375 9.525

25⁄64 .390625 9.922

13⁄32 .40625 10.319

27⁄64 .421875 10.716

7⁄16 .4375 11.113

29⁄64 .453125 11.509

15⁄32 .46875 11.906

31⁄64 .484375 12.303

1⁄2.500 12.700

Inches

MillimetersFractions Decimals

33⁄64 .515625 13.097

17⁄32 .53125 13.494

35⁄64 .546875 13.891

9⁄16 .5625 14.288

37⁄64 .578125 14.684

19⁄32 .59375 15.081

39⁄64 .609375 15.478

5⁄8.625 15.875

41⁄64 .640625 16.272

21⁄32 .65625 16.669

43⁄64 .671875 17.066

11⁄16 .6875 17.463

45⁄64 .703125 17.859

23⁄32 .71875 18.256

47⁄64 .734375 18.653

3⁄4.750 19.050

49⁄64 .765625 19.447

25⁄32 .78125 19.844

51⁄64 .796875 20.241

13⁄16 .8125 20.638

53⁄64 .828125 21.034

27⁄32 .84375 21.431

55⁄64 .859375 21.828

7⁄8.875 22.225

57⁄64 .890625 22.622

29⁄32 .90625 23.019

59⁄64 .921875 23.416

15⁄16 .9375 23.813

61⁄64 .953125 24.209

31⁄32 .96875 24.606

63⁄64 .984375 25.003

11.000 25.400

The Driving Force in Power Transmission. Page 149

Synchronous Belt Product Design Catalogs

Synchronous Belt Product Listing

Gates Synchronous

Belt Products Pitch For Design Information Refer to:

Poly Chain®GT®2 8mm, 14mm Poly Chain®GT®2 Belt Drive Design Manual Catalog 17595

PowerGrip®GT®2 5mm, 8mm, 14mm, 20mm PowerGrip®Belt Systems Drive Design ManualCatalog 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

PowerGrip®Timing XL,L,H PowerGrip

®Belt Systems DriveDesign 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 DriveDesign 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 DriveDesign ManualCatalog 17195

Synchro-Power Polyurethane

Long Length Belting T5, T10, T20, AT5, AT10, AT20, XL, L, H, XH, 5mm, 8mm,

14mm HTD PowerGrip®Belt Systems DriveDesign ManualCatalog 17195

Twin Power®XL, L, H PowerGrip Timing, 8mm, 14mm PowerGrip GT2 PowerGrip®Belt Systems Drive Design Manual Catalog 17195

Product Page

Short Length Poly Chain GT 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

PowerGripGTLongLengthBelting 162

Synchro-Power Polyurethane Long Length Belting 163-164

Page 150 The Gates Rubber Company

8mm Pitch Poly Chain GT2 and Short Length Poly Chain®GT®Belts

8M and 8MGT Stock Belt Lengths

Part

No.

Pitch Length No. of

Teeth

(mm) (in)

8M-248 248 9.77 31

8M-288 288 11.34 36

8M-352 352 13.86 44

8M-416 416 16.38 52

8M-456 456 17.96 57

8M-480 480 18.90 60

8M-544 544 21.42 68

8M-608 608 23.94 76

8MGT-640 640 25.20 80

8MGT-720 720 28.35 90

8MGT-800 800 31.50 100

8MGT-896 896 35.28 112

8MGT-1000 1000 39.38 125

8MGT-1120 1120 44.10 140

Part

No.

Pitch Length No. of

Teeth

(mm) (in)

8MGT-1200 1200 47.25 150

8MGT-1280 1280 50.40 160

8MGT-1440 1440 56.70 180

8MGT-1600 1600 63.00 200

8MGT-1792 1792 70.56 224

8MGT-2000 2000 78.75 250

8MGT-2240 2240 88.20 280

8MGT-2400 2400 94.50 300

8MGT-2520 2520 99.23 315

8MGT-2840 2840 111.83 355

8MGT-3200 3200 126.00 400

8MGT-3600 3600 141.75 450

8MGT-4000 4000 157.50 500

8MGT-4480 4480 176.40 560

8M Short Length Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

12 12 0.472

21 21 0.827

36 36 1.417

8MGT Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

12 12 0.472

21 21 0.827

36 36 1.417

62 62 2.441

14mm Pitch Poly Chain GT2 Stock Belts

14MGT Stock Belt Lengths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

14MGT-994 994 39.13 71

14MGT-1120 1120 44.09 80

14MGT-1190 1190 46.85 85

14MGT-1260 1260 49.60 90

14MGT-1400 1400 55.11 100

14MGT-1568 1568 61.73 112

14MGT-1750 1750 68.89 125

14MGT-1890 1890 74.40 135

14MGT-1960 1960 77.16 140

14MGT-2100 2100 82.67 150

Part No.

Pitch Length No. of

Teeth

(mm) (in)

14MGT-2240 2240 88.18 160

14MGT-2380 2380 93.69 170

14MGT-2520 2520 99.20 180

14MGT-2660 2660 104.71 190

14MGT-2800 2800 110.23 200

14MGT-3136 3136 123.45 224

14MGT-3304 3304 130.07 236

14MGT-3500 3500 137.78 250

14MGT-3920 3920 154.32 280

14MGT-4410 4410 173.60 315

14MGT Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

20 20 0.787

37 37 1.457

68 68 2.677

90 90 3.543

125 125 4.921

The Driving Force in Power Transmission. Page 151

2mm Pitch PowerGrip®GT®2StockBelts

2MR Stock Belt Lengths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

2MR-100 100 3.94 50

2MR-112 112 4.41 56

2MR-126 126 4.96 63

2MR-134 134 5.28 67

2MR-136 136 5.35 68

2MR-140 140 5.51 70

2MR-152 152 5.98 76

2MR-158 158 6.22 79

2MR-160 160 6.30 80

2MR-164 164 6.46 82

2MR-166 166 6.54 83

2MR-168 168 6.61 84

2MR-172 172 6.77 86

2MR-180 180 7.09 90

2MR-192 192 7.56 96

2MR-200 200 7.87 100

2MR-202 202 7.95 101

2MR-210 210 8.27 105

2MR-212 212 8.35 106

2MR-216 216 8.50 108

2MR-220 220 8.66 110

2MR-232 232 9.13 116

2MR-236 236 9.29 118

2MR-240 240 9.45 120

2MR-250 250 9.84 125

2MR-252 252 9.92 126

2MR-258 258 10.16 129

Part No.

Pitch Length No. of

Teeth

(mm) (in)

2MR-278 278 10.94 139

2MR-280 280 11.02 140

2MR-300 300 11.81 150

2MR-320 320 12.60 160

2MR-322 322 12.68 161

2MR-346 346 13.62 173

2MR-350 350 13.78 175

2MR-364 364 14.33 182

2MR-370 370 14.57 185

2MR-380 380 14.96 190

2MR-386 386 15.20 193

2MR-400 400 15.75 200

2MR-406 406 15.98 203

2MR-420 420 16.54 210

2MR-456 456 17.95 228

2MR-470 470 18.50 235

2MR-474 474 18.66 237

2MR-488 488 19.21 244

2MR-504 504 19.84 252

2MR-528 528 20.79 264

2MR-552 552 21.73 276

2MR-576 576 22.68 288

2MR-600 600 23.62 300

2MR-640 640 25.20 320

2MR-696 696 27.40 348

2MR-744 744 29.29 372

2MR-1164 1164 45.83 582

2MR Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

04 4 0.157

06 6 0.236

09 9 0.354

3mm Pitch PowerGrip GT2 Stock Belts

3MR Stock Belt Lengths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

3MR-165 165 6.50 55

3MR-189 189 7.44 63

3MR-201 201 7.91 67

3MR-219 219 8.62 73

3MR-225 225 8.86 75

3MR-240 240 9.45 80

3MR-243 243 9.57

3MR-267 267 10.51 89

3MR-282 282 11.10 94

3MR-291 291 11.46 97

3MR-300 300 11.81 100

3MR-339 339 13.35 113

3MR-348 348 13.70 116

3MR-357 357 14.06 119

3MR-360 360 14.17 120

3MR-375 375 14.76 125

3MR-420 420 16.54 140

Part No.

Pitch Length No. of

Teeth

(mm) (in)

3MR-447 447 17.60 149

3MR-450 450 17.72 150

3MR-474 474 18.66 158

3MR-480 480 18.90 160

3MR-483 483 19.02 161

3MR-489 489 19.25 163

3MR-537 537 21.14 179

3MR-600 600 23.62 200

3MR-630 630 24.80 210

3MR-684 684 26.93 228

3MR-750 750 29.53 250

3MR-840 840 33.07 280

3MR-945 945 37.20 315

3MR-1050 1050 41.34 350

3MR-1080 1080 42.52 360

3MR-1536 1536 60.47 512

3MR-2061 2062 81.18 687

3MR Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

06 6 0.236

09 9 0.354

15 15 0.591

Page 152 The Gates Rubber Company

5mm Pitch PowerGrip®GT®2 Stock Belt Lengths

5MR Stock Belt Lengths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

5MR-300 300 11.81 60

5MR-355 355 13.98 71

5MR-375 375 14.76 75

5MR-400 400 15.75 80

5MR-405 405 15.94 81

5MR-425 425 16.73 85

5MR-450 450 17.72 90

5MR-500 500 19.69 100

5MR-535 535 21.06 107

5MR-565 565 22.24 113

5MR-580 580 22.83 116

5MR-600 600 23.62 120

5MR-625 625 24.61 125

Part No.

Pitch Length No. of

Teeth

(mm) (in)

5MR-650 650 25.59 130

5MR-700 700 27.56 140

5MR-750 750 29.53 150

5MR-800 800 31.50 160

5MR-850 850 33.46 170

5MR-900 900 35.43 180

5MR-1000 1000 39.37 200

5MR-1150 1150 45.28 230

5MR-1300 1300 51.18 260

5MR-1450 1450 57.09 290

5MR-1600 1600 62.99 320

5MR-1720 1720 67.72 344

5MR-2100 2100 82.67 420

5MR Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

09 9 0.354

15 15 0.591

25 25 0.984

8mm Pitch PowerGrip GT2 Belts

8MGT Stock Belt Lengths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

384-8MGT 384 15.12 48

480-8MGT 480 18.89 60

560-8MGT 560 22.05 70

600-8MGT 600 23.62 75

640-8MGT 640 25.20 80

720-8MGT 720 28.35 90

800-8MGT 800 31.50 100

840-8MGT 840 33.07 105

880-8MGT 880 34.65 110

920-8MGT 920 36.22 115

960-8MGT 960 37.80 120

1040-8MGT 1040 40.94 130

1064-8MGT 1064 41.89 133

1120-8MGT 1120 44.09 140

1160-8MGT 1164 45.67 145

1200-8MGT 1200 47.24 150

1224-8MGT 1224 48.19 153

Part No.

Pitch Length No. of

Teeth

(mm) (in)

1280-8MGT 1280 50.39 160

1440-8MGT 1440 56.69 180

1512-8MGT 1512 59.53 189

1584-8MGT 1584 62.36 198

1600-8MGT 1600 62.99 200

1760-8MGT 1760 69.29 220

1800-8MGT 1800 70.87 225

2000-8MGT 2000 78.74 250

2200-8MGT 2200 86.61 275

2400-8MGT 2400 94.49 300

2600-8MGT 2600 102.36 325

2800-8MGT 2800 110.24 350

3048-8MGT 3048 120.00 381

3280-8MGT 3280 129.13 410

3600-8MGT 3600 141.73 450

4400-8MGT 4400 173.23 550

8MGT Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

20 20 0.787

30 30 1.181

50 50 1.969

85 85 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.

The Driving Force in Power Transmission. Page 153

14mm Pitch PowerGrip®GT®2Belts

14MGT Stock Belt Lengths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

966-14MGT 966 38.03 69

1190-14MGT 1190 46.85 85

1400-14MGT 1400 55.12 100

1610-14MGT 1610 63.39 115

1778-14MGT 1778 70.00 127

1890-14MGT 1890 74.41 135

2100-14MGT 2100 82.63 150

2310-14MGT 2310 90.94 165

2450-14MGT 2450 96.46 175

2590-14MGT 2590 101.97 185

2800-14MGT 2800 110.24 200

Part No.

Pitch Length No. of

Teeth

(mm) (in)

3150-14MGT 3150 124.02 225

3360-14MGT 3360 132.28 240

3500-14MGT 3500 137.80 250

3850-14MGT 3850 151.57 275

4326-14MGT 4326 170.32 309

4578-14MGT 4578 180.24 327

4956-14MGT 4956 195.12 354

5320-14MGT 5320 209.45 380

5740-14MGT 5740 225.98 410

6160-14MGT 6160 242.52 440

6860-14MGT 6860 270.08 490

14MGT Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

40 40 1.575

55 55 2.165

85 85 3.346

115 115 4.528

170 170 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

Part No.

Pitch Length No. of

Teeth

(mm) (in)

2000-20M 2000 78.74 100

2500-20M 2500 98.43 125

3400-20M 3400 133.86 170

3800-20M 3800 149.61 190

4200-20M 4200 165.35 210

4600-20M 4600 181.10 230

5000-20M 5000 196.85 250

5200-20M 5200 204.72 260

Part No.

Pitch Length No. of

Teeth

(mm) (in)

5400-20M 5400 212.60 270

5600-20M 5600 220.47 280

5800-20M 5800 228.35 290

6000-20M 6000 236.22 300

6200-20M 6200 244.09 310

6400-20M 6400 251.97 320

6600-20M 6600 259.84 330

20M Stock Belt Widths

Belt Widt

Code Belt Width

(mm) Belt Width

(in)

115 115 4.528

170 170 6.693

230 230 9.055

290 290 11.417

340 340 13.386

Page 154 The Gates Rubber Company

3mm Pitch PowerGrip®HTD®Belts

3M Stock Belt Widths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

150-3M 150 5.91 50

159-3M 159 6.26 53

168-3M 168 6.61 56

177-3M 177 6.97 59

189-3M 189 7.44 63

201-3M 201 7.91 67

213-3M 213 8.39 71

225-3M 225 8.86 75

240-3M 240 9.45 80

252-3M 252 9.92 84

255-3M 255 10.04 85

267-3M 267 10.51 89

285-3M 285 11.22 95

300-3M 300 11.81 100

312-3M 312 12.28 104

318-3M 318 12.52 106

339-3M 339 13.35 113

357-3M 357 14.06 119

363-3M 363 14.29 121

384-3M 384 15.12 128

390-3M 390 15.35 130

399-3M 399 15.71 133

Part No.

Pitch Length No. of

Teeth

(mm) (in)

420-3M 420 16.54 140

447-3M 447 17.60 149

474-3M 474 18.66 158

486-3M 486 19.13 162

501-3M 501 19.72 167

513-3M 513 20.20 171

531-3M 531 20.91 177

564-3M 564 22.20 188

597-3M 597 23.50 199

633-3M 633 24.92 211

669-3M 669 26.34 223

711-3M 711 27.99 237

753-3M 753 29.65 251

795-3M 795 31.30 265

843-3M 843 33.19 281

882-3M 882 34.72 294

945-3M 945 37.20 315

1002-3M 1002 39.45 334

1062-3M 1062 41.81 354

1125-3M 1125 44.29 375

1191-3M 1191 46.89 397

1263-3M 1263 49.72 421

3M HTD Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

06 6 0.236

09 9 0.354

15 15 0.591

5mm Pitch PowerGrip HTD Belts

5M Stock Belt Widths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

350-5M 350 13.78 70

375-5M 375 14.76 75

400-5M 400 15.75 80

425-5M 425 16.73 85

450-5M 450 17.72 90

475-5M 475 18.70 95

500-5M 500 19.69 100

535-5M 535 21.06 107

565-5M 565 22.24 113

600-5M 600 23.62 120

635-5M 635 25.00 127

670-5M 670 26.38 134

710-5M 710 27.95 142

740-5M 740 29.13 148

800-5M 800 31.50 160

850-5M 850 33.46 170

Part No.

Pitch Length No. of

Teeth

(mm) (in)

890-5M 890 35.04 178

950-5M 950 37.40 190

1000-5M 1000 39.37 200

1050-5M 1050 41.34 210

1125-5M 1125 44.29 225

1195-5M 1195 47.05 239

1270-5M 1270 50.00 254

1420-5M 1420 55.91 284

1595-5M 1595 62.80 319

1690-5M 1690 66.54 338

1790-5M 1790 70.47 358

1895-5M 1895 74.61 379

2000-5M 2000 78.74 400

2250-5M 2250 88.58 450

2525-5M 2525 99.40 505

5M HTD Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

09 9 0.354

15 15 0.591

25 25 0.984

The Driving Force in Power Transmission. Page 155

MXL Pitch PowerGrip®Timing Belts

MXL Stock Belt Lengths

Part

No. Pitch Length

(in) No.

of Teeth

36MXL 3.60 45

40MXL 4.00 50

44MXL 4.40 55

48MXL 4.80 60

56MXL 5.60 70

64MXL 6.40 80

68MXL 6.80 85

72MXL 7.20 90

76MXL 7.60 95

80MXL 8.00 100

88MXL 8.80 110

96MXL 9.60 120

104MXL 10.40 130

Part

No. Pitch Length

(in) No.

of Teeth

112MXL 11.20 140

120MXL 12.00 150

132MXL 13.20 165

140MXL 14.00 175

152MXL 15.20 190

160MXL 16.00 200

168MXL 16.80 210

180MXL 18.00 225

200MXL 20.00 250

208MXL 20.80 260

236MXL 23.60 295

240MXL 24.00 300

320MXL 32.00 400

MXL Stock Belt Widths

Belt Width

Code Belt Width

(in)

012 0.125

019 0.188

025 0.250

XL Pitch PowerGrip Timing Belts

XL Stock Belt Lengths

Part No. Pitch Length

(in) No. of

Teeth

50XL 5.00 25

60XL 6.00 30

70XL 7.00 35

80XL 8.00 40

90XL 9.00 45

100XL 10.00 50

110XL 11.00 55

120XL 12.00 60

130XL 13.00 65

140XL 14.00 70

150XL 15.00 75

160XL 16.00 80

170XL 17.00 85

180XL 18.00 90

190XL 19.00 95

200XL 20.00 100

210XL 21.00 105

220XL 22.00 110

230XL 23.00 115

240XL 24.00 120

250XL 25.00 125

Part No. Pitch Length

(in) No. of

Teeth

260XL 26.00 130

280XL 28.00 140

290XL 29.00 145

300XL 30.00 150

310XL 31.00 155

330XL 33.00 165

340XL 34.00 170

350XL 35.00 175

370XL 37.00 185

380XL 38.00 190

390XL 39.00 195

400XL 40.00 200

420XL 42.00 210

450XL 45.00 225

460XL 46.00 230

480XL 48.00 240

500XL 50.00 250

570XL 57.00 285

630XL 63.00 315

770XL 77.00 385

XL Stock Belt Widths

Belt Width

Code Belt Width

(in)

025 0.250

037 0.375

Page 156 The Gates Rubber Company

L Pitch PowerGrip®Timing Belts

L Stock Belt Lengths

Part No. Pitch Length

(in) No. of

Teeth

124L 12.38 33

135L 13.50 36

150L 15.00 40

165L 16.50 44

187L 18.75 50

195L 19.50 52

210L 21.00 56

225L 22.50 60

240L 24.00 64

255L 25.50 68

270L 27.00 72

285L 28.50 76

300L 30.00 80

315L 31.50 84

Part No. Pitch Length

(in) No. of

Teeth

322L 32.25 86

345L 34.50 92

367L 36.75 98

390L 39.00 104

420L 42.00 112

450L 45.00 120

480L 48.00 128

510L 51.00 136

540L 54.00 144

600L 60.00 160

660L 66.00 176

817L 81.75 218

900L 90.00 240

L Stock Belt Widths

Belt Width

Code Belt Width

(in)

050 0.500

075 0.750

100 1.000

H Pitch PowerGrip Timing Belts

H Stock Belt Lengths

Part No. Pitch Length No. of Teeth

210H 21.00 42

220H 22.00 44

230H 23.00 46

240H 24.00 48

270H 27.00 54

300H 30.00 60

320H 32.00 64

330H 33.00 66

340H 34.00 68

350H 35.00 70

360H 36.00 72

370H 37.00 74

390H 39.00 78

400H 40.00 80

410H 41.00 82

420H 42.00 84

450H 45.00 90

480H 48.00 96

490H 49.00 98

510H 51.00 102

540H 54.00 108

560H 56.00 112

570H 57.00 114

Part No. Pitch Length No. of Teeth

585H 58.50 117

600H 60.00 120

630H 63.00 126

645H 64.50 129

660H 66.00 132

700H 70.00 140

730H 73.00 146

750H 75.00 150

780H 78.00 156

800H 80.00 160

820H 82.00 164

840H 84.00 168

850H 85.00 170

900H 90.00 180

960H 96.00 192

1000H 100.00 200

1100H 110.00 220

1140H 114.00 228

1250H 125.00 250

1400H 140.00 280

1550H 155.00 310

1700H 170.00 340

H Stock Belt Widths

Belt Width

Code Belt Width

(in)

75 0.750

100 1.000

150 1.500

200 2.000

300 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.

The Driving Force in Power Transmission. Page 157

8mm Pitch PowerGrip®GT®2TwinPower

®Belts

TP 8MGT Stock Belt Lengths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

TP840-8MGT 840 33.08 105

TP880-8MGT 880 34.65 110

TP920-8MGT 920 36.23 115

TP960-8MGT 960 37.80 120

TP1040-8MGT 1040 40.95 130

TP1120-8MGT 1120 44.10 140

TP1200-8MGT 1200 47.25 150

TP1224-8MGT 1224 48.20 153

TP1280-8MGT 1280 50.40 160

TP1440-8MGT 1440 56.70 180

TP1600-8MGT 1600 63.00 200

Part No.

Pitch Length No. of

Teeth

(mm) (in)

TP1760-8MGT 1760 69.30 220

TP1800-8MGT 1800 70.88 225

TP2000-8MGT 2000 78.75 250

TP2200-8MGT 2200 86.63 275

TP2400-8MGT 2400 94.50 300

TP2600-8MGT 2600 102.38 325

TP2800-8MGT 2800 110.25 350

TP3048-8MGT 3048 120.02 381

TP3280-8MGT 3280 129.15 410

TP3600-8MGT 3600 141.75 450

TP4400-8MGT 4400 173.25 550

8MGT2 Twin Power Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

20 20 0.787

30 30 1.181

50 50 1.969

85 85 3.346

14mm Pitch PowerGrip GT2 Twin Power Belts

TP 14MGT Stock Belt Lengths

Part No.

Pitch Length No. of

Teeth

(mm) (in)

TP966-14MGT 966 38.03 69

TP1190-14MGT 1190 46.85 85

TP1400-14MGT 1400 55.12 100

TP1610-14MGT 1610 63.38 115

TP1778-14MGT 1778 70.00 127

TP1890-14MGT 1890 74.41 135

TP2100-14MGT 2100 82.67 150

TP2310-14MGT 2310 90.94 165

TP2450-14MGT 2450 96.45 175

Part No.

Pitch Length No. of

Teeth

(mm) (in)

TP2590-14MGT 2590 101.96 185

TP2800-14MGT 2800 110.23 200

TP3150-14MGT 3150 124.01 225

TP3360-14MGT 3360 132.28 240

TP3500-14MGT 3500 137.79 250

TP3850-14MGT 3850 151.57 275

TP4326-14MGT 4326 170.31 309

TP4578-14MGT 4578 180.23 327

14MGT2 Twin Power Stock Belt Widths

Belt Width

Code Belt Width

(mm) Belt Width

(in)

40 40 1.575

55 55 2.165

85 85 3.346

Refer to the Industrial Power Transmission Products catalog, 19993, for a listing of 8mm and 14mm pitch PowerGrip GT Twin Power beltsfor replacement

use on existing PowerGrip GT or HTD Twin Power drives.

Page 158 The Gates Rubber Company

XL Pitch PowerGrip®Twin Power®Timing Belts

Stock Belt Lengths

Part No. Pitch Length

(in) No. of

Teeth

TP140XL 14.00 70

TP150XL 15.00 75

TP160XL 16.00 80

TP170XL 17.00 85

TP180XL 18.00 90

TP190XL 19.00 95

TP200XL 20.00 100

TP210XL 21.00 105

TP220XL 22.00 110

TP230XL 23.00 115

Part No. Pitch Length

(in) No. of

Teeth

TP240XL 24.00 120

TP250XL 25.00 125

TP260XL 26.00 130

TP270XL 27.00 135

TP280XL 28.00 140

TP290XL 29.00 145

TP300XL 30.00 150

TP310XL 31.00 155

TP330XL 33.00 165

TP340XL 34.00 170

XL Twin Power Stock Belt Widths

Belt Width

Code Belt Width

(in)

025 0.250

037 0.375

LPitchPowerGripTwinPowerTimingBelts

Stock Belt Lengths

Part No. Pitch Length

(in) No. of

Teeth

TP150L 15.00 40

TP165L 16.50 44

TP187L 18.75 50

TP195L 19.50 52

TP210L 21.00 56

TP225L 22.50 60

TP240L 24.00 64

TP255L 25.50 68

TP270L 27.00 72

TP285L 28.50 76

TP300L 30.00 80

TP322L 32.25 86

Part No. Pitch Length

(in) No. of

Teeth

TP345L 34.50 92

TP367L 36.75 98

TP390L 39.00 104

TP420L 42.00 112

TP450L 45.00 120

TP480L 48.00 128

TP510L 51.00 136

TP540L 54.00 144

TP600L 60.00 160

TP660L 66.00 176

TP817L 81.75 218

L Twin Power, Stock Belt Widths

Belt Width

Code Belt Width

(in)

050 0.500

075 0.750

100 1.000

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 24.00 48

TP270H 27.00 54

TP300H 30.00 60

TP330H 33.00 66

TP350H 35.00 70

TP360H 36.00 72

TP390H 39.00 78

TP400H 40.00 80

TP420H 42.00 84

TP450H 45.00 90

TP480H 48.00 96

TP510H 51.00 102

TP540H 54.00 108

TP570H 57.00 114

Part No. Pitch Length

(in) No. of

Teeth

TP600H 60.00 120

TP630H 63.00 126

TP660H 66.00 132

TP700H 70.00 140

TP750H 75.00 150

TP800H 80.00 160

TP850H 85.00 170

TP900H 90.00 180

TP1000H 100.00 200

TP1100H 110.00 220

TP1250H 125.00 250

TP1400H 140.00 280

TP1700H 170.00 340

H Twin Power Stock Belt Widths

Belt Width

Code Belt Width

(in)

075 0.750

100 1.000

150 1.500

200 2.000

300 3.000

Page 160 The Gates Rubber Company

PowerGrip®Timing — Long Length Belting

Mini-Pitch (0.080/MXL) — Fiberglass Tensile

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL025MXL 9314-2020 1⁄40.01

LL037MXL 9314-2014 3⁄80.02

LL050MXL 9314-2038 1⁄20.02

1/5 Pitch (0.200/XL) - Fiberglass Tensile

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL025XL 9314-0001 1⁄40.01

LL037XL 9314-0002 3⁄80.01

LL050XL 9314-2012 1⁄20.03

LL075XL 9314-2090 3⁄40.04

3/8 Pitch (0.375/L) - Fiberglass Tensile

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL037L 9314-2089 3⁄80.02

LL050L 9314-0004 1⁄20.02

LL075L 9314-0007 3⁄40.04

LL100L 9314-0015 1 0.05

1/2" Pitch (0.500"/H) - Fiberglass Tensile

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL050H 9314-0003 1⁄20.04

LL075H 9314-0006 3⁄40.06

LL100H 9314-0008 1 0.12

LL150H 9314-0017 11⁄20.12

LL200H 9314-0021 2 0.16

LL300H 9314-0025 3 0.24

1/5 Pitch (0.200/XL) - Steel Tensile

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL025XLST 9314-10028 1⁄40.064

LL037XLST 9314-10029 3⁄80.072

LL050XLST 9314-10030 1⁄20.082

3/8 Pitch (0.375/L) - Steel Tensile

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL050LST 9314-10035 1⁄20.163

LL075LST 9314-10036 3⁄40.198

1/2" Pitch (0.500"/H) - Steel Tensile

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL075HST 9314-10011 3/4 0.229

LL100HST 9314-10037 1 0.253

Poly Chain GT Long Length Belting

8mm - 14mm Pitch

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

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

The Driving Force in Power Transmission. Page 161

PowerGrip®HTD®—LongLengthBelting

PowerGrip HTD - Long Length Belting

PowerGrip HTD Belting - Fiberglass Tensile

3mm - 5mm - 8mm - 14mm Pitch

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL3M06 9308-0044 6 0.01

LL3M09 9308-0003 9 0.01

LL3M15 9308-0084 15 0.01

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

PowerGrip HTD Belting - Steel Tensile

14mm Pitch

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL14M40ST 9308-10016 40 0.76

LL14M55ST 9308-10051 55 1.02

LL14M85ST 9308-10084 85 1.51

PowerGrip GT - Long Length Belting

PowerGrip GT - Fiberglass Tensile

2mm - 3mm - 5mm - 8mm Pitch

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL2MR04 9396-0033 4 0.01

LL2MR06 9396-0009 6 0.01

LL2MR09 9396-0011 9 0.01

LL3MR06 9396-0002 6 0.01

LL3MR09 9396-0012 9 0.01

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

LL8MR30 9396-0030 30 0.13

LL8MR50 9396-0031 50 0.21

LL8MR85 9396-0032 85 0.36

PowerGrip GT - Steel Tensile

5mm - 8mm Pitch

Part No. Product

No. Width

(in) Net Wt. /ft.

(lbs)

LL5MR15ST 9308-10043 15 0.18

LL5MR25ST 9308-40417 25 0.23

LL8MR20ST 9308-10049 20 0.29

LL8MR30ST 9308-10050 30 0.37

LL8MR50ST 9308-40433 50 0.53

Page 162 The Gates Rubber Company

Synchro-Power®PolyUrethane Long Length Belting

T5 Pitch

Part

No. Width

(mm) Wt. per ft.

(lbs)

U6T5LL 6 .01

U8T5LL 8* .01

U10T5LL 10 .02

U12T5LL 12* .02

U16T5LL 16 .03

U20T5LL 20* .03

U25T5LL 25 .04

U32T5LL 32 .05

U50T5LL 50 .08

AT5 Pitch

Part

No. Width

(mm) Wt. per ft.

(lbs)

U6AT5LL 6 .01

U10AT5LL 10 .02

U16AT5LL 16 .03

U20AT5LL 20 .04

U25AT5LL 25 .05

U32AT5LL 32 .06

U50AT5LL 50 .10

T10 Pitch

Part

No. Width

(mm) Wt. per ft.

(lbs)

U12T10LL 12* .04

U16T10LL 16 .05

U20T10LL 20* .07

U25T10LL 25 .08

U32T10LL 32 .11

U40T10LL 40* .13

U50T10LL 50 .16

U75T10LL 75 .25

U100T10LL 100 .33

AT10 Pitch

Part

No. Width

(mm) Wt. per ft.

(lbs)

U16AT10LL 16 .06

U20AT10LL 20* .08

U25AT10LL 25 .10

U32AT10LL 32 .13

U40AT10LL 40* .16

U50AT10LL 50 .20

U75AT10LL 75* .30

U100AT10LL 100* .40

T20 Pitch

Part

No. Width

(mm) Wt. per ft.

(lbs)

U25T10LL 25* .13

U32T20LL 32* .17

U50T20LL 50* .27

U75T20LL 75* .40

U100T20LL 100* .54

*Standard/Non-Stock item, may require manufacturing lead time.

AT20 Pitch

Part

No. Width

(mm) Wt. per ft.

(lbs)

U25AT20LL 25* .17

U32AT20LL 32* .22

U50AT20LL 50* .34

U75AT20LL 75* .50

U100AT20LL 100* .67

U120AT20LL 120* .81

U150AT20LL 150* 1.01

*Standard/Non-Stock item, may require manufacturing lead time.

The Driving Force in Power Transmission. Page 163

Synchro-Power®PolyUrethane Long Length Belting

1/5"Pitch (0.200"/XL)

Part

No. Width

(mm) Wt. per ft.

(lbs)

U.25INXL LL .250* .01

U.31INXL LL .310* .01

U.375INXL LL .375* .01

U.50INXL LL .500* .02

U.75INXL LL .750* .03

U1.00INXL LL 1.000* .03

U2.00INXL LL 2.000* .07

5mm Pitch HTD

Part

No. Width

(mm) Wt. per ft.

(lbs)

U10MTD5MLL 10* .03

U15MTD5MLL 15* .04

U25MTD5MLL 25* .07

U50MTD5MLL 50* .13

3/8" Pitch (0.375"/L)

Part

No. Width

(mm) Wt. per ft.

(lbs)

U.375INL LL .375 .02

U.50INL LL .500 .02

U.75INL LL .750 .03

U1.00INL LL 1.000 .04

U1.50INL LL 1.500* .06

U2.00INL LL 2.000* .08

8mm Pitch HTD

Part

No. Width

(mm) Wt. per ft.

(lbs)

U10MTD8MLL 10* .04

U15MTD8MLL 15* .06

U20MTD8MLL 20* .08

U30MTD8MLL 30* .13

U50MTD8MLL 50* .21

U85MTD8MLL 85* .36

U100MTD8MLL 100* .42

1/2" Pitch (0.500"/H)

Part

No. Width

(mm) Wt. per ft.

(lbs)

U.50INH LL .500 .02

U.75INH LL .750 .04

U1.00INH LL 1.000 .05

U1.50INH LL 1.500 .07

U2.00INH LL 2.000 .09

U3.00INH LL 3.000* .14

U4.00INH LL 4.000* .19

14MM Pitch HTD

Part

No. Width

(mm) Wt. per ft.

(lbs)

U25MTD14MLL 25* .19

U40MTD14MLL 40* .30

U55MTD14MLL 55* .41

U85MTD14MLL 85* .64

U100MTD14MLL 100* .75

*Standard/Non-Stock item, may require manufacturing lead time.

7/8" Pitch (0.875"/XH)

Part

No. Width

(mm) Wt. per ft.

(lbs)

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

*Standard/Non-Stock item, may require manufacturing lead time.

Page 164 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

The Driving Force in Power Transmission. Page 165

Application Examples — continued

Serpentine Drive Configurations

Conveying and Material Transport Applications

Page 166 The Gates Rubber Company

Application Examples —continued

Rack and Carriage Drive Configurations

Long Length Drive Applications

The Driving Force in Power Transmission. Page 167

Application Examples —continued

Complex Carriage Drive Configuration

Lead Screw Drive Applications

Page 168 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

Printed in the U.S.A.

THE DRIVING FORCE IN POWER TRANSMISSION

Your Local Distributor

March 2000

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

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