Gear Couplings Catalog

User Manual: GearCouplingsCatalog

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Gear

In This Section:

■■C■Types■–■Continuous■Sleeve

■■Nyﬂex®■and■Mite®

■■Dentex®■

■■F■Types■–■Flanged■Sleeve

■■R■Types■–■Rigid■Adjustable

■■Coupling■Grease

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When■using■Lovejoy■products,■you■must■follow■these■instructions■and■take■the■following■precautions.■Failure■

to■do■so■may■cause■the■power■transmission■product■to■break■and■parts■to■be■thrown■with■sufﬁcient■force■to■

cause■severe■injury■or■death.

Refer■to■this■Lovejoy■Catalog■for■proper■selection,■sizing,■horsepower,■torque■range,■and■speed■range■

of■power■transmission■products,■including■elastomeric■elements■for■couplings.■Follow■the■installation■

instructions■included■with■the■product,■and■in■the■individual■product■catalogs■for■proper■installation■of■power■

transmission■products.■Do■not■exceed■catalog■ratings.

During■start■up■and■operation■of■power■transmission■product,■avoid■sudden■shock■loads.■Coupling■assembly■

should■operate■quietly■and■smoothly.■If■coupling■assembly■vibrates■or■makes■beating■sound,■shut■down■

immediately,■and■recheck■alignment.■Shortly■after■initial■operation■and■periodically■thereafter,■where■

applicable,■inspect■coupling■assembly■for:■alignment,■wear■of■elastomeric■element,■bolt■torques,■and■ﬂexing■

elements■for■signs■of■fatigue.■Do■not■operate■coupling■assembly■if■alignment■is■improper,■or■where■applicable,■

if■elastomeric■element■is■damaged,■or■worn■to■less■than■75%■of■its■original■thickness.

Do■not■use■any■of■these■power■transmission■products■for■elevators,■man■lifts,■or■other■devices■that■carry■

people.■If■the■power■transmission■product■fails,■the■lift■device■could■fall■resulting■in■severe■injury■or■death.

For■all■power■transmission■products,■you■must■install■suitable■guards■in■accordance■with■OSHA■and■

American■Society■of■Mechanical■Engineers■Standards.■Do■not■start■power■transmission■product■before■

suitable■guards■are■in■place.■Failure■to■properly■guard■these■products■may■result■in■severe■injury■or■death■

from■personnel■contacting■moving■parts■or■from■parts■being■thrown■from■assembly■in■the■event■the■power■

transmission■product■fails.

If■you■have■any■questions,■contact■the■Lovejoy■Engineering■Department■at■1-630-852-0500.

Safety Warning

G-2

Gear

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Table of Contents

Gear

G-3

Overview■.......................................................................................................................................................118■............................G-4

Selection■Process■.........................................................................................................................................126■..........................G-12

Application■Service■Factors■>■Selection■Data■..............................................................................................127■..........................G-13

Gear■Coupling■Selection■Worksheet■............................................................................................................128■..........................G-14

Continuous■Sleeve■>■Cut■Away■....................................................................................................................129■..........................G-15

C■and■CFR■Type■>■Performance■/■Dimensional■Data■...................................................................................130■...................G-16■/■17

CMM■Type■>■Performance■/■Dimensional■Data■............................................................................................132■...................G-18■/■19

CFS■Type■>■Performance■/■Dimensional■Data■.............................................................................................134■...................G-20■/■21

CSPCR■Type■>■Performance■/■Dimensional■Data■........................................................................................136■...................G-22■/■23

CCS■Type■>■Performance■/■Dimensional■Data■.............................................................................................138■...................G-24■/■25

CSHP■Type■>■Performance■/■Dimensional■Data■...........................................................................................140■...................G-26■/■27

Nylex®■and■Mite®■Type■>■Performance■/■Dimensional■Data■........................................................................142■..................■G-28■/■29

Dentex®■Type■>■Performance■/■Dimensional■Data■.......................................................................................144■...................G-30■/■31

C■Universal■Hub■>■Dimensional■Data■...........................................................................................................146■..........................G-32

Flanged■Sleeve■>■Cut■Away■.........................................................................................................................147■..........................G-33

F■Type■>■Performance■/■Dimensional■Data...................................................................................................148■...................G-34■/■35

FFR■Type■>■Performance■/■Dimensional■Data■..............................................................................................150■...................G-36■/■37

FFS■Type■>■Performance■/■Dimensional■Data■..............................................................................................152■...................G-38■/■39

FHD■Type■>■Performance■/■Dimensional■Data■.............................................................................................154■...................G-40■/■41

FHDFR■Type■>■Performance■/■Dimensional■Data.........................................................................................156■...................G-42■/■43

FHDFS■Type■>■Performance■/■Dimensional■Data■.........................................................................................158■...................G-44■/■45

FMM■Mill■Type■>■Performance■/■Dimensional■Data■......................................................................................160■...................G-46■/■47

FMM■Mill■Motor■Type■>■Performance■/■Dimensional■Data■............................................................................162■...................G-48■/■49

FSL■Type■>■Performance■/■Dimensional■Data■..............................................................................................164■...................G-50■/■51

FSXL■Type■>■Performance■/■Dimensional■Data■............................................................................................166■...................G-52■/■53

FSPCR■Type■>■Performance■/■Dimensional■Data.........................................................................................168■...................G-54■/■55

FLEF■Type■>■Performance■/■Dimensional■Data■............................................................................................170■...................G-56■/■57

FRR■Type■>■Performance■/■Dimensional■Data■.............................................................................................172■...................G-58■/■59

FLA■Type■>■Performance■/■Dimensional■Data■..............................................................................................174■...................G-60■/■61

FLAFR■Type■>■Performance■/■Dimensional■Data■.........................................................................................176■...................G-62■/■63

FLAMM■and■FLAMMFR■Type■>■Performance■/■Dimensional■Data■...............................................................178■...................G-64■/■65

FA■Type■>■Performance■/■Dimensional■Data.................................................................................................180■...................G-66■/■67

RA■and■RAHS■Type■>■Performance■/■Dimensional■Data■..............................................................................182■...................G-68■/■69

F■Universal■Hub■and■Puller■Holes■>■Dimensional■Data■................................................................................184■..........................G-70

F■Flange■and■Hub■Gap■Details■>■Dimensional■Data■....................................................................................185■..........................G-71

Continuous■Sleeve■>■Overview■....................................................................................................................186■..........................G-72

Flanged■Sleeve■>■Overview■.........................................................................................................................188■..........................G-74

Standard■Flanged■Sleeve■Maximum■Bores■Inch■/■Metric■>■Dimensional■Data■.............................................190■..........................G-76

Rigid■Hub■Maximum■Bores■–■Interference■Fit■■>■Dimensional■Data■.............................................................191■..........................G-77■

Coupling■Grease■...........................................................................................................................................192■..........................G-78

Running Section

Page No. Page No.

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G-4

Gear

Overview

Lovejoy / Sier-Bath Continuous Sleeve and Flanged Sleeve Couplings

Continuous Sleeve Series

Features

■■Simple■and■inexpensive■all■steel■type■of■gear■coupling■constructed■with■a■

single■sleeve■and■2■hubs

■■Comparatively■simple■installation

■■Precision■cut■20°■pressure■angle■gear■teeth■with■minimum■backlash

■■Most■standard■conﬁgurations■are■available■as■stock■items

■■Angular■misalignment■of■1/2°■per■gear■mesh■(ﬂex-plane)

■■Sizes■7/8■through■12,■to■accommodate■bore■sizes■up■to■and■including■

12.50■inches

■■Interference■ﬁt■(standard)■and■Clearance■ﬁt■on■bores■are■available

■■Load■Capacities■range■from■2,500■in-lbs■up■to■2,520,000■in-lbs■

■■Designs■for■applications■requiring■horizontal■and■vertical■orientation,■

full-ﬂex,■ﬂex-rigid,■mill-motor,■disengagement,■sliding■hubs,■Shear■Pin,■

ﬂoating■shaft,■and■spacers

■■Patented■and■tested■BUNA■N■seal■design■with■reinforced■washers■

bonded■to■the■inside■edges■which■positively■retain■lubricant■and■seal■the■

interior■from■outside■contaminants

■■Reinforced■rubber■seals■with■snap■rings■to■hold■in■lubricant

■■Two■snap■rings■made■of■hardened■spring■steel■which■securely■hold■the■

coupling■together,■are■easy■to■install■or■remove,■yet■withstand■100,000■

pounds■of■end■thrust

■■Inch■and■Metric■bore■sizes■available

Flanged Sleeve Series

Features

■■Patented■Vari-Crown®■tooth■form■for■long■coupling■life

■■Precision■cut■20°■pressure■angle■gear■teeth■with■minimum■backlash

■■All■steel■sleeves■and■hubs■(stainless■steel■available)

■■Designs■for■applications■requiring■horizontal■and■vertical■orientation

■■Most■standard■conﬁgurations■are■available■as■stock■items

■■Angular■misalignment■of■1-1/2°■per■gear■mesh■(ﬂex-plane)■up■to■size■5.5,■

3/4°■for■sizes■6■and■above

■■Coupling■sizes■available■through■size■30■to■accommodate■bore■sizes■up■

to■and■including■44■inches

■■Interference■ﬁt■(standard)■and■Clearance■ﬁt■on■bores■are■available

■■Load■capacities■range■from■7,600■in-lbs■up■to■47,269,000■in-lbs

■■Exposed■bolts■standard■on■all■sizes,■shrouded■available■by■request■up■

to■size■6

■■Standard■bolts■supplied■by■Lovejoy■are■treated■to■be■corrosion■resistant

■■Flanged■sleeve■couplings■are■interchangeable■with■industry■standards

■■Piloted■gear■ﬁt■for■higher■speeds■and■less■vibration

■■Labyrinth■all■steel■seal■design■in■FL■series

■■Inch■and■Metric■bore■sizes■available

Standard Types and Sizes

Lovejoy■/■Sier-Bath■couplings■are■stocked■in■an■assortment■of■conﬁgurations■

which■include■C■and■F■standard■hubs■and■sleeves,■Mill■Motor■hubs,■Vertical■

style,■Floating■Shaft,■and■Spacer■designs.■Lovejoy’s■superb■engineering■

staff■make■it■possible■to■support■many■additional■coupling■types■such■as■the■

Brakedrum■type,■Sliding■Hub■type,■Shear■Pin■type,■Jordan■type,■and■custom■

lengths■for■non■standard■shaft■separations.■Additional■size■ranges■and■

designs■to■meet■unusual■application■requirements■can■also■be■manufactured■

by■Lovejoy■to■meet■market■demands.■Material■can■range■from■standard■

steel■to■alloy■steel■and■even■stainless■steel.■The■exceptional■simplicity■of■the■

Lovejoy■coupling■design■make■this■all■possible.

Misalignment and End-Float Capability

The■basic■principle■of■Lovejoy■/■Sier-Bath■C■and■F■type■couplings■is■similar■

to■that■of■other■conventional■ﬂexible■gear■couplings.■While■it■is■desirable■to■

align■shafts■as■accurately■as■possible,■the■purpose■of■any■ﬂexible■coupling■

is■to■absorb■probable■angular,■parallel,■and■axial■(end-ﬂoat)■misalignment.■

Lovejoy/Sier-Bath■couplings■utilize■a■unique■gear■tooth■geometry■developed■

speciﬁcally■to■resolve■issues■with■shaft■misalignment■and■accommodate■

from■1/2°■to■1-1/2°■per■gear■mesh■or■ﬂex■plane.■The■hub■teeth■are■fully■

crowned■to■provide■for■a■larger■contact■area■and■lower■stresses■under■

misaligned■conditions.■The■crowned■tooth■design■also■eliminates■most■of■

the■end■loading■that■occurs■on■straight■gear■teeth■under■misalignment.

WARNING

You■must■refer■to■page■G-2■(Page■116)■for■Important■Safety■Instructions■and■

Precautions■for■the■selection■and■use■of■these■products.■Failure■to■follow■the■

instructions■and■precautions■can■result■in■severe■injury■or■death.

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Gear

Overview

Lovejoy / Sier-Bath Nyﬂex® and Mite®

Lovejoy■/■Sier-Bath■Nylon■couplings■are■compact■and■require■no■

lubrication.■They■operate■over■a■wide■temperature■range■at■speeds■up■

to■5,000■RPM■and■are■effectively■used■in■applications■such■as■Motor/

Generator■sets,■pump■sets,■and■many■light■to■medium■duty■industrial■

coupling■applications.

No■lubricants■are■ever■required,■eliminating■the■need■for■seals.■The■resilient■

nature■of■the■nylon■material■makes■the■contact■of■the■hubs■and■sleeves■

almost■frictionless.■Since■no■lubrication■is■used,■the■coupling■can■readily■be■

adapted■to■many■applications■including■vertical■and■blind■installations■where■

the■slip-together■components■offer■easy■inspection■and■adjustment.

Operationally,■the■coupling■offers■a■minimum■backlash■solution■that■will■

operate■in■ambient■temperature■environments■from■-40°■to■150°■F.■Nylon■

Sleeve■couplings■have■precision■molded■sleeves■and■hubs■with■no■bolts,■

pins,■ﬂanges,■or■protrusions■to■affect■balance■or■safety.■The■nylon■sleeve■

permits■misalignment■up■to■5°■for■Dentex■and■Nyﬂex■couplings■and■3°■for■

the■Mite.

When■completely■assembled,■the■Mite■coupling■weighs■less■than■1lb■and■

the■Nyﬂex■only■3.50■lbs.■Weights■for■Dentex®■couplings■can■be■found■on■

page■G-30.

Features

■■Molded■nylon■sleeve

■■No■internal■frictional■loss■or■heat■buildup

■■Minimum■backlash

■■High■ambient■temperature■allowed

■■Resistance■to■dirt,■moisture,■most■chemicals

■■Low■maintenance■(no■seals,■lubricant,■retainers)

■■High■torque,■low■intertia

■■Standard■bores■are■available

2 Spirolox

Retaining Rings

Sleeve■is■securely■

held■on■the■hubs■

by■these■spring-

steel■retaining■

rings.■They■can■

be■removed■in■

seconds,■yet■they’ll■

withstand■5,000■lbs■

endthrust.

Nylon Sleeve

Resilient,■

lightweight,■

abrasion■and■

corrosion■resistant■

nylon■is■accurately■

molded■to■mesh■

precisely■with■

hubs.■Their■

almost■frictionless■

properties■eliminate■

the■need■for■

lubrication.

2 Hubs

Sintered■iron■is■

standard■in■the■

Nyﬂex■and■Mite.■

Teeth■are■crowned■

to■provide■greater■

misalignment■

capacity■and■to■

prevent■gouging■

of■Nylon■sleeve.■

Maintain■0.13■inch■

spacing■between■

hubs.

Dentex® / Dentex® FL - The Flexible Coupling

Features

Compensation■of■axial,■radial■and■angular■misalignment■

of■shafts■through■double■cardanic■action

■■Simple■and■easy■assembly

■■High■electrical■insulating■property

■■High■thermal■stability

■■No■maintenance

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G-6

Gear

Overview

Lovejoy / Sier-Bath Continuous Sleeve

Series Couplings

Standard C Type

■■Basis■for■all■types■of■Lovejoy■/■Sier-Bath■Continuous■Sleeve■

Couplings

■■Low■proﬁle■compact■design■is■easy■to■implement

■■Single■(ﬂex-rigid)■or■double■(ﬂex-ﬂex)■engagement

Mill Motor CMM Type

■■Designed■with■longer■universal■hub■on■one■end■to■accommodate■

straight■or■tapered■shafts

■■Standard■hub■and■sleeve■on■the■other■end

■■Universal■hub■bored■to■customer■speciﬁcations

■■Available■with■longer■universal■hubs■on■both■ends

Floating Shaft CFS Type

■■Two■ﬂex-rigid■couplings■connected■by■an■intermediate■shaft

■■Increased■capability■to■accommodate■parallel■misalignment

■■Allows■for■longer■shaft■separations

Spacer CSPCR Type

■■Drop-out■spacer■design■allows■for■ease■of■maintenance■without■

disturbing■the■equipment■mountings■

■■Spacer■has■rigid■teeth■to■mate■with■sleeves■on■each■coupling

■■Increased■capability■to■accommodate■parallel■misalignment

■■Allows■for■longer■shaft■separations

Cut-out Shifter CCS Type

■■Designed■for■quick■disengagement■between■the■driver■and■driven■

equipment

■■Special■seal■in■disengagement■hub■to■prevent■undue■friction■when■

hub■turns■in■sleeve

■■Widely■used■on■dual■drive■operations■and■equipment■operating■in■

tandem

■■Available■with■pins■to■maintain■sleeve■in■engaged■and■disengaged■

positions

■■Shifting■mechanisms■available■upon■request

Shear Pin CSHP Type

■■Designed■to■limit■and■protect■against■excessive■torque■or■sudden■

shock■loads

■■Sheer■pins■designed■and■manufactured■for■predetermined■loads

■■Pins■are■inserted■in■hardened■bushings■to■minimize■wear

■■Easy■to■install■new■pins

■■For■Flanged■FSHP■Style■see■page■G-8

C Type Section Pages G-16 and G-17

CFR Type

CCS Type

Section Pages G-24 and G-25

CMM Type

Section Pages G-18 and G-19

CFS Type

Section Pages G-20 and G-21

CSPCR Type

Section Pages G-22 and G-23

CSHP Type

Section Pages G-26 and G-27

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Gear

Overview

Lovejoy / Sier-Bath Flanged Sleeve Series

Couplings

Standard F Type

■■Double■engagement■(‘F’■ﬂex-ﬂex)■for■parallel■and■angular■

misalignment

■■Single■engagement■(‘FFR’■ﬂex-rigid)■accommodates■angular■

misalignment■only■and■is■ideal■for■ﬂoating■shaft■applications

■■Industry■standard■ﬂange■bolt■patterns■

■■FHD■Type■standard■for■sizes■10■through■30■(other■sizes■available■

upon■request)

Rigid-Rigid FRR Type

■■Designed■for■connecting■two■rigidly■mounted■shafts■with■no■

misalignment■capability

Alloy Rigid-Rigid FARR Type

■■Longer■piloted■hubs■maintain■rigidity■and■concentricity

■■Used■for■cantilevered■loads■such■as■gear■boxes■that■hang■off■

conveyor■systems

■■Alloy■steel■available■for■greater■strength■(FARR)

Mill Motor FMM Type

■■First■hub■designed■with■longer■universal■hub■on■one■end■to■

accommodate■straight■or■tapered■shafts

■■Second■hub■bored■to■customer■speciﬁcations

■■Standard■design■accommodates■AISE■Mill■Motor■frame■sizes

■■Sleeves■and■second■hub■are■standard

Floating Shaft FFS Type

■■Two■ﬂex-rigid■couplings■connected■by■an■intermediate■shaft

■■Increased■ability■to■accommodate■parallel■misalignment

■■Accommodate■longer■shaft■separations

■■Standard■construction■with■rigid■hubs■on■outboard■(equipment)■

shafts,■ﬂex■on■inboard■(ﬂoating)■shaft

■■Rigid■hubs■inboard■(on■ﬂoating■shaft)■available■upon■request

Spacer FSPCR Type

■■Drop-out■spacer■design■allows■for■ease■of■maintenance■without■

disturbing■the■equipment■mountings■

■■Lightweight■construction■reduces■load■on■equipment■bearings

F Type Section Pages G-34 and G-35

FFR Type Section Pages G-36 and G-37

FHD Type Section Pages G-40 and G-41

FRR Type Section Pages G-58 and G-59

FARR Type Contact Lovejoy Technical Support

FMM Type Section Pages G-46, G-47,

G-48 and G-49

FFS Type

Section Pages G-38

and G-39

FHDFS Type

Section Pages G-44

and G-45

FSPCR Type

Section Pages G-54 and G-55

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G-8

Gear

Overview

FSL Type Section pages G-50, G-51,

FSLX Type G-52 and G-53

FSHP and FSHPB Type

Contact Lovejoy Technical Support

FV and FVX Type

Contact Lovejoy Technical Support

FLEF Type Section pages G-56 and G-57

Slide FSL and FSLX Types

■■Allows■for■a■predetermined■amount■of■axial■slide

■■Longer■hubs■and■sleeves■available■to■accommodate■additional■

slide■capacity

■■Custom■slide■lengths■available

Shear Pin FSHP and FSHPB Types

■■Designed■to■limit■and■protect■equipment■against■excessive■torque■

or■sudden■shock■loads

■■Shear■pins■designed■and■manufactured■to■shear■at■predetermined■

torque■loads

■■Pins■are■inserted■in■hardened■bushings■to■minimize■wear

■■Easy■to■install■new■pins

■■Available■with■bearing■support■to■maintain■alignment■after■the■pins■

shear

Standard Vertical FVX Type

■■Designed■for■use■with■vertical■shafts

■■Vertical■kit■prevents■shafts■from■contacting■each■other

■■Maintains■ability■to■accommodate■misalignment

■■Available■in■vertical■ﬂoating■shaft■design

Limited End Float FLEF Type

■■Designed■for■equipment■with■sleeve■bearings

■■Designed■to■limit■axial■travel■of■the■rotor■in■the■motor■and■prevent■

the■rotor■from■coming■into■contact■and■damaging■sleeve■bearings

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Gear

Overview

FLA Type Section Pages G-60 and G-61

FLAFR Type Section Pages G-62 and G-63

FLAMM Type Section Pages G-64 and G-65

FLHD Type Contact Lovejoy

Technical Support

FLHDFR Type Contact Lovejoy

Technical Support

Lovejoy / Sier-Bath All Metal Labyrinth Seal

Series Couplings

■■All■AISI■4140■Alloy■Steel■Design

■■No■rubber■seals■–■metal■labyrinth■design

■■Standard■with■exposed■bolts

■■Fully■interchangeable■with■Industry■standards

■■Ideal■for■higher■temperature■applications

Standard FLA Type

■■Double■engagement■(‘F’■ﬂex-ﬂex)■for■parallel■and■angular■misalignment

■■Industry■standard■ﬂange■bolt■patterns

Single Engagement FLAFR Type

■■Single■engagement■(‘FFR’■ﬂex-rigid)■accommodates■angular■

misalignment■only■and■is■ideal■for■ﬂoating■shaft■applications

Mill Motor FLAMM Type

■■First■hub■designed■with■longer■universal■hub■on■one■end■to■

accommodate■straight■or■tapered■shafts

■■Second■hub■bored■to■customer■speciﬁcations

■■Standard■design■accommodates■AISE■Mill■Motor■frame■sizes

■■Sleeves■and■second■hub■are■standard

Lovejoy Forged Steel Series

Standard FLHD Type

■■Piloted■Sleeves

■■Exposed■Bolts■Standard

■■Excellent■for■high■torque■at■low■speeds

■■Bore■range■from■7.75■inches■up■to■44.88■inches

■■Torque■capacity■up■to■54,390,000■in-lbs

■■Alloy■Steel■(AISI■4140)■construction■available

Single Engagement FLHDFR Type

■■Capacities■the■same■as■FHD

■■Ideal■for■heavy■duty■ﬂoating■shaft■applications

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G-10

Gear

Overview

FA Type Section Pages G-66 and G-67

FAFR Type Contact Lovejoy

Technical Support

FAMM Type Contact Lovejoy

Technical Support

Lovejoy Alloy Steel Series Couplings

■■All■alloy■steel■construction

■■■Fully■molded■seals■maintain■lubricant■retention■under■misalignment■

conditions

■■Exposed■bolts■are■standard,■shrouded■bolts■are■optional

Standard FA Type

■■Double■engagement■(‘F’■ﬂex-ﬂex)■for■parallel■and■angular■

misalignment

■■Industry■standard■ﬂange■bolt■patterns■

Single engagement FAFR Type

■■Single■engagement■(‘FFR’■Flex-Rigid)■accommodates■angular■

misalignment■only■and■is■ideal■for■ﬂoating■shaft■applications

Mill Motor FAMM Type

■■First■hub■designed■with■longer■universal■hub■on■one■end■to■

accommodate■straight■or■tapered■shafts

■■Second■hub■bored■to■customer■speciﬁcations

■■Standard■design■accommodates■AISE■Mill■Motor■frame■sizes

■■Sleeves■and■second■hub■are■standard

Additional Specialty Coupling Types

■■Stainless■Steel

■■Nylon■Sleeves■

■■High■Speed■RAHS■Type

■■Brake■Drum■FBD■and■FBW■Types

■■Insulated■FI■Type

■■Vertical■Floating■Shaft■FVFS■Type

■■F■Style■Cutout■Shifter■FCS■Type

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Gear

Overview

Straight

With■straight■hub■teeth,■there■is■a■high■concentration■of■load■under■

misaligned■conditions.■As■misalignment■increases,■more■of■the■load■is■

carried■by■the■ends■of■the■teeth,■resulting■in■premature■breakdown■and■

coupling■failure.

Conventional Crown

Some■manufacturers■use■a■conventionally■crowned■hub■tooth■known■

by■various■trade■names.■Regardless■of■the■nomenclature,■however,■the■

contour■of■the■tooth■is■a■segment■of■an■arc.■Under■all■operating■conditions,■

equal■or■similar■contact■areas■between■the■hub■teeth■and■the■sleeve■teeth■

exist.

Lovejoy / Sier-Bath Vari-Crown®

The■Sier-Bath■Vari-Crown■tooth■form■has■a■crown■at■the■center■of■the■tooth■

which■is■similar■to■a■conventionally■crowned■tooth■coupling.■However,■

as■soon■as■misalignment■occurs,■the■transmitted■torque■is■carried■on■a■

ﬂattened■area■of■the■hub■tooth■which■is■considerably■broader■and■stronger■

than■the■conventionally■crowned■tooth■form.■Note■the■larger■contact■area■

and■reduced■stress■area■of■the■Vari-Crown■tooth■form.

Vari-Crown® Tooth Form

Patented Vari-Crown® Tooth Form for Long Life

Facts

■■It■can■be■shown1■that■bodies■with■the■smallest■relative■curvature■have■

the■largest■area■of■contact■under■load,■or■speciﬁcally,■a■body■with■the■

largest■radius■of■curvature■has■the■largest■area■of■contact■with■another■

body■when■under■load.■More■importantly,■under■a■given■load■the■bodies■

with■the■greater■radii■of■curvature■have■lower■induced■surface■contact■

stresses.

■■Gear■tooth■couplings■have■fewer■teeth■in■contact■as■misalignment■

increases.

Lower Stresses

Lovejoy■/■Sier-Bath’s■solution■to■these■facts■was■the■development■of■the■

patented■Vari-Crown■tooth■form.■The■Vari-Crown■tooth■form■is■a■curve■

with■constantly■changing■radii■of■curvature.■The■tooth■contact■area■

under■misaligned■conditions■has■a■much■larger■radius■of■curvature■than■

conventional■crowning.■The■contact■area■is■larger,■thus■reducing■the■unit■

stress.

Constant Velocity Power Transmission

Lovejoy■/■Sier-Bath■produces■the■Vari-Crown■tooth■form■by■a■generating■

method■maintaining■the■necessary■characteristics■for■conjugate■tooth■action,■

which■are:

1.■Constant■normal■base■pitch■at■any■position■on■the■crowned■teeth.

2.■■Correct■pressure■angle■matching■of■the■normal■to■the■curved■surface■and■

the■sleeve■surface■at■any■position■of■misalignment.

Less Backlash

The■tooth■design■requires■less■backlash■for■a■given■angle■of■misalignment■

than■the■conventional■or■circular■arc■crown.■In■many■applications■this■is■a■

desirable■feature■in■a■gear■tooth■coupling.

Note:■■ n■1■indicates:■Hertz’s■study■of■contact■stresses■of■curved■surfaces.

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G-12

Gear

Selection Process

Gear Coupling Selection Process

Selection Example (Flanged Gear Coupling)

Application Data: ■This■sample■application■calls■for■a■coupling■to■connect■the■output■

side■of■a■reducer■gearbox■to■a■dredge■pump.■There■is■a■400■HP■electric■motor,■

running■at■3,600■RPM■driving■the■gearbox■which■has■a■10:1■speed■reduction.■The■

gearbox■has■a■6■inch■diameter■shaft,■the■pump■has■a■6-1/2■inch■diameter■shaft.■There■

is■an■angular■misalignment■potential■of■slightly■more■than■1°.

Step 1: ■■Since■C■Type■gear■couplings■are■only■capable■of■1/2°■misalignment■per■ﬂex■

plane,■the■F■Type■coupling■is■selected.■The■F■Type■coupling■is■capable■of■

accommodating■1-1/2°■per■ﬂex■plane.■Note,■it■is■highly■recommended■that■

couplings■are■installed■at■no■more■than■20%■of■the■allowable■misalignment■

since■the■alignment■often■changes■during■operation.

Step 2: Refer■to■page■G-34■and■G-35■for■Flanged■series■(F■Type)■double■

engagement,■or■ﬂex-ﬂex,■coupling■information.■The■bore■size■and■torque■

should■be■addressed■interactively■when■selecting■a■coupling■size.

Step 3: The■application■service■factor■can■be■found■on■page■G-13.■Application■

service■factors■are■multipliers■assigned■to■assorted■applications■for■the■

purpose■of■guiding■the■coupling■selection■process■to■a■torque■rating■that■will■

prevent■premature■failure■caused■by■the■characteristics■of■that■application.■

For■this■sample■application,■note■that■the■service■factor■for■a■dredge■pump■

application■is■2.0.

Step 4: Calculate■the■torque■requirements■for■the■application■using■the■formula:

Design■Torque■(■in–lbs■)■■=■■HP■x■63025

■ ■ ■■■■■■■■■■■■■■■■■■■■■■■■RPM

or■ ■■■■■■■■■■■■■■■■■■Nm■■=■■(KW■x■9550)

■ ■ ■■■■■■■■■■■■■■■■RPM

Selection■Torque■=■■Application■Torque■■x■■Service■Factor■

In■this■example,■a■gearbox■is■in■use■that■reduces■the■operating■speed■

where■the■coupling■is■being■used■from■3,600■RPM■on■the■input■side■to■360■

RPM■on■the■gearbox■output■side.

Please■note■that■any■speed■decrease■at■the■reducer■(gear■box)■will■cause■an■

increase■in■the■application■torque.

Application■Torque■(■in-lbs■)■■=■■

■■■■■■■■■(HP■x■63025)■■=■■(400■■x■■63025)■■=■■70,028■in-lbs

■■■■■■■■■■■■■■■■RPM■■■■■■■■■■■■■■■■■■■■■■360

Selection■Torque■■=■■Application■Torque■x■Service■Factor■=

■ ■ ■ 70,028■■■x■■■2.0■■■■■■=■140,056■in-lbs

An■F■3.5■coupling■is■rated■at■151,200■in-lbs■and■could■easily■accommodate■

the■torque■requirement,■however,■to■accommodate■the■6-1/2■inch■pump■

shaft■diameter■the■selection■of■an■F■5E■size■coupling■will■be■necessary.■

The■F■5■coupling■is■rated■at■434,700■in-lbs■and■may■seem■to■be■too■

large■or■overrated■for■this■application,■but■the■larger■size■is■necessary■to■

accommodate■the■shaft■size.

Step 5: Conﬁrm■that■the■RPM■is■within■range■speciﬁed■for■the■selected■coupling.■The■chart■

shows■the■F■5■has■a■2,500■RPM■maximum■speed■and■this■will■accommodate■the■

360■RPM■speed■requirement■on■the■output■side■of■the■gearbox.

Step 6: Please■refer■to■the■coupling■speciﬁcations■on■page■G-34■and■G-35.■■Note■

that■F■5E■couplings■are■manufactured■with■interference■ﬁts■and■exposed■

bolts■as■standard.■When■contacting■your■sales■representative,■the■

description■for■this■coupling■would■be■an■F■5E■gear■coupling■and■include■the■

bore■size,■keyway■information,■and■shaft■separation.■Also,■provide■a■list■of■

any■requirements■that■might■supersede■the■coupling■defaults.

Special Note:■If■the■shaft■separation■is■greater■than■speciﬁed■in■the■chart■on■Page■

G-35,■refer■to■the■Floating■shaft■or■Spacer■style■couplings■on■pages■G-39■or■G-55.■If■

the■desired■shaft■separation,■or■BSE,■is■not■listed,■contact■Lovejoy■Technical■Support■

for■assistance.

Please■refer■to■the■Lovejoy■website■for■installation■instructions■and■lubrication■

requirements■for■gear■couplings.

Factors Affecting Selection

The■following■is■a■list■of■the■information■necessary■to■assist■in■making■a■coupling■

selection.■Not■all■of■these■items■will■come■into■play■in■all■selection■processes.■These■

items■include,■but■are■not■limited■to:

Application related:

•■ Application■details

•■ Type■of■motor■and■driven■equipment

•■ Motor■horsepower■or■KW

•■ Operating/coupling■speed

•■ Shaft■sizes■and■separation

•■ Space■and■size■constraints

•■ Environment■(temperature,■chemicals,■etc)

•■ Balance■requirements

•■ Special■modiﬁcations

Steps In Selecting A Gear Coupling

Refer■to■the■gear■coupling■speciﬁcations■charts■displayed■with■each■type■of■coupling■

throughout■the■Gear■Coupling■Products■section■of■this■catalog.■The■pictures■and■charts■

provide■visualization,■speciﬁcations,■and■dimensional■data■for■Lovejoy’s■wide■range■of■gear■

coupling■products.■Typically■start■with■an■F■Type■ﬂanged■gear■coupling■(page■G-34)■or■a■C■

Type■continuous■sleeve■gear■coupling■(page■G-16)■and■proceed■from■there.

Step 1:■■■Review■the■gear■coupling■series■and■type■as■selected■to■ensure■the■selection■

meets■application■requirements.

Step 2:■■■Determine■the■nominal■application■torque■in■in–lbs■by■using■the■following■

formula:

Application■Torque■(■in–lb■)■■■=■■(HP■x■63025)

■■■■■■■■■ ■ ■■■■■■■■■■■■■RPM

or■ ■ ■■■■■■Nm■■=■■(KW■x■9550)

■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■RPM

Step 3: ■■Review■the■Application■Service■Factor■chart■for■the■service■factor■number■

associated■with■the■application■where■this■coupling■will■be■used.■Multiply■the■

application■torque■by■the■application■service■factor■to■determine■the■total■

torque■required■for■the■coupling■selection.

Step 4:■■■Compare■the■required■total■torque■value■with■the■nominal■torque■capacity■

listed■in■the■Gear■Coupling■Selection■chart■for■the■desired■coupling■type.

Step 5:■■■Check■that■the■maximum■bore■size■and■the■maximum■RPM■of■the■coupling■

type■selected■to■ensure■the■coupling■will■meet■these■application■requirements.

Step 6:■■■Note■any■special■requirements■including■the■BSE■dimension■for■ﬂoating■shaft■

and■spacer■types,■shear■pin■torque,■slide■coupling■details,■mill■motor■tapered■

shaft■data,■and■any■other■pertinent■information.

Consult■with■Lovejoy■Technical■support■or■Engineering■for■any■unique■application■

concerns.

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Gear

Application Service Factors

Selection Data

Application Service Factors

Agitators

■ Pure■Liquids■............................................1.0

■ Liquids—Variable■Density■.......................1.0

Blowers

■ Centrifugal■...............................................1.0

■ Lobe■........................................................1.2

Can Filling Machines■...................................1.0

Car Dumpers■................................................2.0

Car Pullers, Intermittent Duty■.....................1.5

Compressors

■ Centrifugal■...............................................1.0

■ Reciprocating■..........................................2.2

■ Multi-Cylinder■..........................................2.0

■ Single■Cylinder■........................................2.0

Conveyors,■Uniformly■Loaded■■or■■Fed

■ Assembly■................................................1.2

■ Belt■..........................................................1.2

■ Screw■......................................................1.2

Conveyors,■Heavy■Duty

■ Not■Uniformly

■ Fed■Assembly■.........................................1.5

■ Belt■..........................................................1.5

■ Oven........................................................1.5

■ Reciprocating■..........................................2.0

■ Screw■......................................................1.5

■ Shaker■.....................................................1.5

Cranes and Hoists1

■ Main■Hoists■.............................................2.0

■ Reversing■................................................2.0

■ Skip■Hoists■..............................................2.0

■ Trolley■Drive■............................................2.0

■ Bridge■Drive■............................................2.0

Crushers

■ Ore■..........................................................3.0

■ Stone■.......................................................3.0

Dredges

■ Conveyors■...............................................2.0

■ Cutter■■Head■Drives■................................2.0

■ Maneuvering■Winches■............................2.0

■ Pumps■.....................................................2.0

Fans

■ Centrifugal■...............................................1.0

■ Cooling■Towers■Forced■Draft■..................1.5

Feeders

■ Screw■......................................................1.5

Generators

■ Not■Welding.............................................1.0

■ Welding■...................................................1.5

Hammer Mills■................................................2.0

Laundry Washers

■ Reversing■................................................1.5

Lumber Industry

■ Barkers—Drum■Type■..............................2.0

■ Edger■■Feed■............................................2.0

■ Live■Rolls.................................................2.0

■ Log■Haul—Incline■....................................2.0

■ Log■Haul—Well■Type■..............................2.0■

■ Off■Bearing■Rolls■.....................................2.0

■ Planer■Feed■Chains■..............................1.75

■ Planer■Tilting■Hoist■................................1.75

■ Planer■Floor■Chains■..............................1.75

■ Slab■Conveyor■........................................1.5

■ Sorting■Table■...........................................1.5

■ Trimmer■Feed■..........................................1.5

Machine Tools

■ Bending■Roll■............................................2.0

■ Punch■Press,■Gear■Driven■......................2.0

■ Tapping■Machines■...................................2.0

■ Main■Drives■.............................................1.5

■ Auxiliary■Drives■.......................................1.5

Metal Mills

■ Draw■Bench—Carriage■...........................2.0

■ Draw■Bench—Main■Drive■........................2.0

■ Forming■Machines■..................................2.0

■ Slitters■.....................................................1.5

■ Table■Conveyors

■ ■■■■■Non-Reversing■.................................2.25

■ ■■■■■Reversing■...........................................2.5

■ Wire■Drawing■&

■ ■■■Flattening■Machine■...............................2.0

■ Wire■Winding■Machine■..........................1.75

Metal Rolling Mills

■ Blooming■Mills■........................................■2.5

■ Coilers,■hot■mill........................................2.0

■ Coilers,■cold■mill■......................................1.5

■ Cold■Mills.................................................2.0

■ Cooling■Beds■.........................................1.75

■ Door■Openers■.........................................2.0

■ Draw■Benches■.........................................2.0

■ Edger■Drives■.........................................1.75

■ Feed■Rolls,■Reversing■Mills■....................3.5

■ Furnace■Pushers■.....................................2.5

■ Hot■Mills■..................................................3.0

■ Ingot■Cars■...............................................2.5

■ Kick-outs■.................................................2.5

■ Manipulators■...........................................3.0

■ Merchant■Mills■.........................................3.0

■ Piercers■...................................................3.0

■ Pusher■Rams■..........................................2.5

■ Reel■Drives■...........................................1.75

■ Reel■Drums■.............................................2.0

■ Reelers■....................................................3.0

■ Rod■and■Bar■Mills■....................................3.0

■ Roughing■Mill■Delivery■Table■...................3.0

■ Runout■Tables■.........................................2.5

■ Saws,■hot■&■cold■.....................................2.5

■ Screwdown■Drives■..................................3.0

■ Skelp■Mills■...............................................3.0

■ Slitters■.....................................................3.0

■ Slabing■Mills■..........................................1.75

■ Soaking■Pit■Cover■Drives■........................3.0

■ Straighteners■...........................................2.5

■ Tables,■transfer■■&■runout■........................2.5

■ Thrust■Block■............................................3.0

■ Traction■Drive■..........................................3.0

■ Tube■Conveyor■Rolls■...............................2.5

■ Unscramblers■..........................................2.5

■ Wire■Drawing■........................................1.75

Mills, Rotary Type

■ Ball■........................................................2.25

■ Dryers■&■Coolers■.....................................2.0

■ Hammer■................................................1.75

■ Kilns■........................................................2.0

■ Pebble■&■Rod■..........................................2.0

■ Pug■........................................................1.75

■ Tumbling■Barrels■.....................................2.0

Mixers

■ Concrete■Mixers,■Continuous■..................1.5

■ Concrete■Mixers,■Intermittent■..................2.0

Oil Industry

■ Oil■Well■Pumping.....................................2.0

■ Rotary■Kilns■.............................................2.0

Paper Mills

■ Agitators,■Mixers■.....................................1.5

■ Barker■Auxiliaries,■Hydraulic■...................2.0

■ Barker■Mechanical■..................................2.0

■ Barking■Drum■Spur

■ ■■■■■Gear■Only■...........................................2.0

■ Beater■&■Pulper■.....................................1.75

■ Bleacher■..................................................1.0

■ Calenders■................................................2.0

■ Calenders,■Super■....................................1.5

■ Chippers■..................................................2.5

■ Coaters....................................................1.0

■ Converting■Machines,

■ ■■■except■Cutters,■Platers■.........................1.5

■ Conveyors■...............................................1.5

■ Couch■Roll■............................................1.75

■ Cutters,■Platters■......................................2.0

■ Cylinders■...............................................1.75

■ Disc■Reﬁners■.........................................1.75

■ Dryers....................................................1.75

■ Felt■Stretcher■........................................1.25

■ Felt■■Whipper■...........................................2.0

■ Jordans■.................................................1.75

■ Line■Shaft■................................................1.5

■ Log■Haul■..................................................2.0

■ Pulp■Grinder■..........................................1.75

■ Press■Roll■................................................2.0

■ Reel■.........................................................1.5

■ Stock■Chests■...........................................1.5

■ Suction■Roll■...........................................1.75

■ Washers■&■Thickeners■............................1.5

■ Winders■...................................................1.5

Printing Presses■...........................................1.5

Pumps

■ Centrifugal■...............................................1.0

■ Reciprocating

■ ■■■Single■Acting■3■or■more

■ ■■■■■■Cylinders■...........................................1.5

■ Double■Acting■2■or■more

■ ■■■■■■Cylinders■...........................................2.0

■ Rotary,■Gear■Type,■Lobe

■ ■■■■■Vane■...................................................1.5

Rubber Industry

■ Mixer■.......................................................2.0

■ Rubber■Calender■.....................................2.0

Screens

■ Rotary,■Stone■or■Gravel■..........................1.5

Steering Gear■...............................................1.0

Stokers■..........................................................1.0

Textile Industry

■ Dryers......................................................1.5

■ Dyeing■Machinery■...................................1.5

Windlass■.......................................................2.0

Notes:■■ n■■1■indicates:■If■people■are■transported,■Lovejoy■does■not■recommend■and■will■not■warranty■the■use■of■the■coupling.

■n■■■Values■contained■in■the■table■should■be■used■as■a■general■guide■and■are■to■be■applied■to■smooth■power■sources■such■as■electric■

motors■and■steam■turbines.

■n■■■For■drives■involving■internal■combustion■engines■add■1.0■to■the■values■listed.

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G-14

Gear

Selection Worksheet

Customer Name:____________________________________________________ Contact Name: _____________________________________________

Phone Number:_____________________________________________________ Email Address: ______________________________________________

1.■ Type■of■Driver■(Electric■Motor,■Combustion■Engine,■Gearbox,■etc.)■:■___________________

■■ ■ For■combustion■engines,■deﬁne■type

■ ■ Gasoline,■Diesel,■Natural■Gas,■etc.■:■■______________■Number■of■cylinders■_______

2.■■ Driver■Horse■Power■:■____________■■■■■■3.■■Driver■or■Gearbox■output■RPM■:■_____________

■ ■ Retrieve■the■Application■Service■Factor■from■Page■G-13■:■______________■then

■ ■ calculate■the■Selection■Torque■using■the■following■formula:

■ ■ Torque■(in-lbs)■■=■■HP■■■x■■■63025■■■x■■Service■Factor■■=■■Selection■Torque■■=■■____________■in-lbs

■ ■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■RPM

4.■ Driver■Shaft■Diameter■:■_________■Keyway■size■:■KW■Width■_________■KW■Height■_________■■

■ ■ Specify■Clearance■Fit,■Interference■Fit,■Metric■(P7,■H7,■etc),■Shaft■Locking■Device,■and■Set■Screw■or■No■Set■Screw

5.■ Driver■Usable■Shaft■Length■:■___________■■(Measure■from■the■end■of■the■shaft■to■any■obstruction)

6.■ Distance■between■shaft■ends■(BSE)■:■_______________

7.■ Type■of■Driven■Equipment■:■_______________________________________

8.■ Driven■Shaft■Diameter■:■_________■Keyway■size■:■KW■Weight■_________■KW■Height■_________■■

■ ■ Specify■Clearance■Fit,■Interference■Fit,■Metric■(P7,■H7,■etc),■Shaft■Locking■Device,■and■Set■Screw■or■No■Set■Screw

9.■ Driven■Usable■Shaft■Length■:■___________■■(Measure■from■the■end■of■the■shaft■to■any■obstruction)

10.■ Total■Mounting■Length■:■______________■■(Advise■of■any■obstructions,■walls,■beams,■guards,■pipes,■etc.)

11. ■For■Tapered■Shafts■specify■the■following:

■ ■ Minimum■or■Maximum■Taper■diameter:■_________________________________

■ ■ Taper■Length:■___________■■T■(Taper■Inch■per■Foot)■:■_____________________

■ ■ Gap■or■Hub■Overhang■amount:■_______________________________________

■ ■ Locknut■Width:■___________■■Size■of■nut■cross■corners:■___________________

■ ■ Thread■Size:■_____________■■Thread■Length:■___________________________

■ ■ Washer■Diameter■(if■used)■:■____________■■■Washer■Width:■________________

For additional bore and

keyway information, see the

Engineering Data Section

of the Power Transmission

Products Catalog

Lovejoy, Inc.

World Headquarters

2655 Wisconsin Avenue

Downers Grove, IL 60515

Send this form to:

appleng@lovejoy-inc.com

or fax to: 800-446-0878

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Gear

Continuous Sleeve

Cut Away

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

One-piece■steel■sleeve■Internal■

teeth■run■full■working■length

Steel■hubs

Keyway

Gear■teeth■precision-cut,■evenly■spaced

Lubrication■holes■(2)

Draw-off■holes■(Optional)

Reinforced■rubber■lubrication■■

seals■held■in■by■snap■rings

Oil-hardened■spring■steel■snap■rings■

positioned■by■grooves■in■sleeve

The One-Piece Sleeve Gear Coupling

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G-16

Gear

C and CFR Type

Performance Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

C Type Flex-Flex Couplings

The■C■Type■coupling■consists■of■two■ﬂex■hubs,■one■sleeve■and■one■accessory■kit■

consisting■of■seals■and■snap■rings.

CFR Type Flex-Rigid Couplings

The■CFR■Type■coupling■consist■of■one■ﬂex■hub,■one■rigid■hub,■one■sleeve,■one■

accessory■kit■consisting■of■seals■and■snap■rings.

Features

■■Simple■and■inexpensive■type■of■gear■coupling

■■All■steel■sleves■and■hubs

■■Reinforced■rubber■seals■with■snap■rings■to■hold■lubricant■in■place

■■Available■as■vertical■and■horizontal■couplings

■■Wide■variety■of■special■variations■such■as■full-ﬂex,■ﬂex-rigid■mill■motor

■■Standard■conﬁgurations■are■available■of■the■shelf

C - CFR Performance Data

ID1 - ID2

Nominal Maximum Flex & Rigid Flex & Rigid Weight Parallel Angular

Torque Speed Max Bore Rough Stock Misalignment Misalignment

Unbal Bal Bore Degrees

Size in-lb Nm RPM RPM in mm in mm lbs kg in mm

7/8 2,500 300 6,000 18,000 1.25 31

Solid■with■Center

5 2 0.005 0.13

1.5 7,600 900 5,000 15,000 1.63 42 8 4 0.007 0.18 1/2°

220,200 2■300 4,200 12,600 2.13 56 13 6 0.007 0.18 per■Mesh

2.5 30,200 3■400 3,750 11,250 2.63 70 20 9 0.007 0.25

350,400 5■700 3,600 9,000 3.13 84 33 15 0.010 0.30

3.5 88,200 10■000 2,800 8,400 3.63 97 1.25 32 63 29 0.012 0.30

4126,000 14■200 2,400 7,200 4.13 111 1.75 44 91 41 0.012 0.30

4.5 184,000 20■800 2,200 6,600 4.75 130 2.38 60 126 57 0.007 0.18

5270,900 30■600 2,100 6,300 5.75 160 2.88 73 195 89 0.007 0.18 1/4°

6378,000 42■700 2,000 6,000 6.75 186 3.88 99 267 121 0.009 0.23 per■Mesh

7598,500 67■600 1,000 3,000 7.50 200 4.69 119 320 145 0.010 0.25

91,260,000 142■400 800 2,400 9.50 240 5.88 149 520 236 0.011 0.28

11 2,205,000 249■200 600 1,800 11.50 305 7.75 197 925 420 0.013 0.33

12 2,520,000 284■700 550 1,650 12.50 330 9.75 248 1,200 545 0.014 0.36

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

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Gear

C and CFR Type

Dimensional Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

C and CFR Type Couplings

Ordering Information

■■Puller■Holes■are■standard■on■sizes■4■through■12.■

■■Puller■Holes■are■available■for■sizes■7/8■through■3.5■at■an■additional■charge.

■■The■BSE■(distance■Between■Shaft■Ends)■may■vary■between■G■and■G1.

■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■■Inch■bores■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.■ ■ ■

■■For■metric■bores■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

■■Larger■sizes■are■available,■please■consult■Lovejoy■Technical■Support.

!"#$%&'(ÿ)*+,)--#. /,0#123453677+89

3ÿ/:ÿ3

C and CFR Type Dimensional Data

R OAL LS SL ID1 - ID2 HL DC BSE OD HD CBD

Flex & Rigid Flex & Rigid G G1

Max Bore Rough Stock

Bore

Size in in in in in mm in mm in in in in in in in

7/8 3.75 3.13 2.00 1.00 1.25 31

Solid■with■Center

1.50 0.13 0.13 0.38 3.31 2.00 1.94

1.5 4.59 3.75 2.53 1.27 1.63 42 1.81 0.19 0.13 0.50 3.75 2.38 2.25

24.88 4.25 2.56 1.28 2.13 56 2.06 0.19 0.13 0.50 4.75 3.25 3.00

2.5 5.72 4.75 3.06 1.53 2.63 70 2.25 0.25 0.25 0.75 5.50 3.94 3.75

36.88 5.50 3.75 1.88 3.13 84 2.63 0.25 0.25 0.75 6.63 4.75 4.75

3.5 9.25 8.75 4.00 2.00 3.63 97 1.25 30 4.25 0.25 0.25 0.75 7.50 5.38 5.50

49.50 9.00 4.63 2.31 4.13 111 1.75 44 4.38 0.25 0.25 0.75 8.75 6.25 6.50

4.5 10.38 10.25 4.88 2.44 4.75 130 2.38 60 5.00 0.25 0.25 0.75 9.50 7.25 7.25

512.25 12.25 5.75 2.88 5.75 160 2.88 73 6.00 0.25 0.25 0.75 10.75 8.25 8.12

613.38 13.00 6.50 3.25 6.75 186 3.88 99 6.38 0.25 0.25 0.75 12.25 9.50 9.25

715.38 14.88 7.50 3.75 7.50 200 4.69 119 7.25 0.25 0.38 0.88 14.00 10.50 9.75

919.00 19.00 8.13 4.06 9.50 240 5.88 149 9.25 0.25 0.50 1.00 16.25 12.63 12.25

11 22.50 22.50 8.13 4.06 11.50 305 7.75 197 11.00 0.25 0.50 1.00 19.25 15.63 15.00

12 25.00 25.00 8.38 4.19 12.50 330 9.75 248 12.25 0.25 0.50 1.00 20.50 16.50 16.00

C Type Flex-Flex Coupling CFR Type Flex-Rigid Coupling

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G-18

Gear

CMM Type

Performance Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

■■Length■and■taper■per■foot■of■Mill■Motor■shaft.

■■Size■of■nut■to■be■used■on■Mill■Motor■(DC1■and■CBD1).

■■Specify■if■keyways■are■to■be■parallel■to■shaft■axis■or■tapered.

CMM Type Mill Motor Couplings

The■CMM■Type■coupling■consists■of■one■standard■ﬂex■hub,■one

universal■hub,■one■standard■sleeve■and■one■accessary■kit■consisting■

of■seals■and■snap■rings.

Features

■■Speciﬁcally■designed■for■mill■motors■with■tapered■bores

■■Universal■hub■counterbored■for■the■nut■on■the■end■of■the■motor■

shaft

■■One■piece■cylindrical■sleeve■for■smoother,■faster,■quieter■and■and■

safer■operation

■■Quick■assembly■and■disassembly

CMM Type Performance Data

ID1 - ID2

Nominal Maximum Speed Max Bore Rough Weight Parallel Max Angular

Torque Unbal Bal Stock Bore Misalignment Misalignment

Degrees

Size in-lb Nm RPM RPM in mm in mm lbs kg in mm

7/8 2,500 300 6,000 18,000 1.25 31 0.44 11 7 3.2 0.005 .13

1.5 7,600 900 5,000 15,000 1.63 42 0.63 16 11 5.0 0.007 .18

220,200 2■300 4,200 12,600 2.13 56 0.73 19 19 8.6 0.007 .18 ■1/2°

2.5 30,200 3■400 3,750 11,250 2.63 70 0.88 22 29 13.0 0.007 .18

350,400 5■700 3,600 9,000 3.13 84 1.19 30 46 21.0 0.010 .25

3.5 88,200 10■000 2,800 8,400 3.63 97 1.25 32 77 35.0 0.012 .30

4126,000 14■200 2,400 7,200 4.13 111 1.75 44 109 49.0 0.012 .30

4.5 184,000 20■800 2,200 6,600 4.75 130 2.38 60 155 70.0 0.007 .18 ■1/4°

5270,000 30■600 2,100 6,300 5.75 160 2.88 73 220 100.0 0.007 .18

6378,000 42■700 2,000 6,000 6.75 186 3.88 99 315 143.0 0.009 .23

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Gear

CMM Type

Dimensional Data

Ordering Information

■■HL1■Dimensions■are■the■maximum■lengths■of■Universal■hubs■kept■in■stock■and■altered■to■customer■speciﬁcations.■Longer■length■hubs■are■made■to■order.

■■Dimension■CBD1■as■shown■is■the■maximum■safe■counterbore.■Diameter■of■this■counterbore■is■to■customer■speciﬁcations.

■■Rough■bore■mill■motor■hubs■are■manufactured■to■HL1■length■with■straight■bores.

■■Puller■Holes■are■standard■on■sizes■4■through■12.

■■Puller■Holes■are■available■for■sizes■7/8■through■3.5■at■an■additional■charge.

■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■■Inch■bores■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■■For■metric■bores■and■keyway,■consult■Lovejoy■Engineering■Section.

■■Larger■sizes■are■available,■please■consult■Lovejoy■Technical■Support.

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CMM Type Mill Motor Couplings

Standard Type Alternative Type

CMM Type Dimensional Data

OAL R LS SL ID1 - ID2 HL HL1 DC DC1 G OD HD CBD CBD 1

Max Bore Rough

Stock Bore

Size in in in in in mm in mm in in in in in in in in in

7/8

Determined■by■Length■of■Mill■Motor■Hub

3.75 2.00 1.00 1.25 31 0.44 11 1.50 3.75 0.13

Determined■by■Customer■Speciﬁcations

0.13 3.31 2.00 1.94 1.63

1.5 4.59 2.53 1.27 1.63 42 0.63 16 1.81 4.00 0.19 0.13 3.75 2.38 2.25 1.88

24.88 2.56 1.28 2.13 56 0.73 19 2.06 4.63 0.19 0.13 4.75 3.25 3.00 2.75

2.5 5.72 3.06 1.53 2.63 70 0.88 22 2.25 5.13 0.25 0.25 5.50 3.94 3.75 3.25

36.88 3.75 1.88 3.13 84 1.19 30 2.63 5.75 0.25 0.25 6.63 4.75 4.75 3.88

3.5 9.25 4.00 2.00 3.63 97 1.25 32 4.25 6.50 0.25 0.25 7.50 5.38 5.50 4.50

49.50 4.63 2.31 4.13 111 1.75 44 4.38 6.63 0.25 0.25 8.75 6.25 6.50 5.13

4.5 10.38 4.88 2.44 4.75 130 2.38 60 5.00 7.75 0.25 0.25 9.50 7.25 7.25 5.50

512.25 5.75 2.88 5.75 160 2.88 73 6.00 7.88 0.25 0.25 10.75 8.25 8.13 6.50

613.38 6.50 3.25 6.75 186 3.88 99 6.38 9.25 0.25 0.25 12.25 9.50 9.25 7.75

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G-20

Gear

CFS Type

Performance Data

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CFS Type Floating Shaft Coupling

The■CFS■Type■coupling■consists■of■two■ﬂex-rigid■(CFR)■couplings■

with■a■shaft■between■them.■Normally■the■driver■and■driven■ends■

are■rigid■while■the■two■center■hubs■connected■by■the■center■shaft■

are■ﬂexible.■These■hubs■can■be■reversed■if■necessary■without■

sacriﬁcing■ease■of■installation■or■disassembly.

CFS Type Performance Data

ID1 - ID2

Size

Nominal Maximum Flex & Rigid Flex & Rigid Weight Parallel Max Angular

Torque Speed Max Bore Rough Stock Coupling Misalignment Misalignment

Unbal Bal Bore Only Degrees

in-lb Nm RPM RPM in mm in mm lbs kg in mm

7/8 2,500 300 6,000 18,000 1.25 31 0.44 11 10 4.5 0.005 .13

1.5 7,600 900 5,000 15,000 1.63 42 0.63 16 16 7.3 0.007 .18

220,200 2■300 4,200 12,600 2.13 56 0.73 19 26 12.0 0.007 .18 ■1/2°

2.5 30,200 3■400 3,750 11,250 2.63 70 0.88 22 40 18.0 0.007 .18

350,400 5■700 3,600 9,000 3.13 84 1.19 30 66 30.0 0.010 .25

3.5 88,200 10■000 2,800 8,400 3.63 97 1.25 32 126 57.0 0.012 .30

4126,000 14■200 2,400 7,200 4.13 111 1.75 44 182 83.0 0.012 .30

4.5 184,000 20■800 2,200 6,600 4.75 130 2.38 60 252 114.0 0.007 .18 ■1/4°

5270,000 30■600 2,100 6,300 5.75 160 2.88 73 390 177.0 0.007 .18

6378,000 42■700 2,000 6,000 6.75 186 3.88 99 534 242.0 0.009 .23

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Gear

CFS Type

Dimensional Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CFS Type Floating Shaft Couplings

!"#$%&'(ÿ)*+,)--#. /,0#123453677+89

3ÿ/:ÿ3

CFS Type Dimensional Data

R OAL LS SL ID1 - ID2 HL DC BSE G G1 OD HD CBD

Flex & Rigid Flex & Rigid Min

Max Bore Rough Stock

Bore

Size in in in in in mm in mm in in in in in in in in

7/8 3.75 3.13 2.00 1.00 1.25 31 0.44 11 2.00 0.13 3.75 0.13 0.38 3.31 2.00 1.94

1.5 4.59 3.75 2.53 1.27 1.63 42 0.63 16 2.38 0.19 4.63 0.13 0.50 3.75 2.38 2.25

24.88 4.25 2.56 1.28 2.13 56 0.73 19 3.25 0.19 5.13 0.13 0.50 4.75 3.25 3.00

2.5 5.72 4.75 3.06 1.53 2.63 70 0.88 22 3.94 0.25 6.00 0.25 0.75 5.50 3.94 3.75

36.88 5.50 3.75 1.88 3.13 84 1.19 30 4.75 0.25 6.75 0.25 0.75 6.63 4.75 4.75

3.5 9.25 8.75 4.00 2.00 3.63 97 1.25 32 5.38 0.25 9.50 0.25 0.75 7.50 5.38 5.50

49.50 9.00 4.63 2.31 4.13 111 1.75 44 6.25 0.25 9.75 0.25 0.75 8.75 6.25 6.50

4.5 10.38 10.25 4.88 2.44 4.75 130 2.38 60 7.25 0.25 11.00 0.25 0.75 9.50 7.25 7.25

512.25 12.25 5.75 2.88 5.75 160 2.88 73 8.25 0.25 13.00 0.25 0.75 10.75 8.25 8.13

613.38 13.00 6.50 3.25 6.75 186 3.88 99 9.50 0.25 13.75 0.25 0.75 12.25 9.50 9.25

Notes:■■ n■■■FSL■Dimension■is■the■minimum■length■of■the■ﬂoating■shaft.

■n■■The■BSE■(distance■Between■Shaft■Ends)■vary■between■G■and■G1.

■n■■Puller■Holes■are■standard■on■sizes■4■through■6.

■n■■Puller■Holes■are■available■for■sizes■7/8■through■3.5■at■an■additional■charge.

■n■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■Inch■bores■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■n■■For■metric■bores■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

■n■■Larger■sizes■are■available,■please■consult■Lovejoy■Technical■Support.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

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G-22

Gear

CSPCR Type

Performance Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CSPCR Type Spacer Couplings

The■CSPCR■Type■coupling■consists■of■two■ﬂex■hubs,■two■sleeves,■one■spacer,■

one■accessory■kit,■two■split■seals■and■two■lock■rings.

Features

■■Easy■removal■of■hubs■without■disturbing■the■mounting■of■connected■units

■■Spacer■teeth■are■rigid■with■a■slight■interference■ﬁt■with■the■mating■ﬂex■hub

■■Split■seals■on■the■spacer

CSPCR Type Performance Data

ID1 - ID2

Size

Nominal Maximum Max Bore Rough Stock Weight Parallel Max Angular

Torque Speed1Bore Couplings Misalignment Misalignment

Unbal Bal Only Degrees

in-lb Nm RPM RPM in mm in mm lbs kg in mm

7/8 2,500 300 6,000 18,000 1.25 31 0.44 11 7 3.2 0.005 .13

1.5 7,600 900 5,000 15,000 1.63 42 0.63 16 11 5.0 0.007 .18

220,200 2■300 4,200 12,600 2.13 56 0.73 19 16 7.3 0.007 .18 1/2°

2.5 30,200 3■400 3,750 11,250 2.63 70 0.88 22 26 12.0 0.007 .18 per■Mesh

350,400 5■700 3,600 9,000 3.13 84 1.19 30 43 20.0 0.010 .25

3.5 88,200 10■000 2,800 8,400 3.63 97 1.25 32 79 36.0 0.012 .30

4126,000 14■200 2,400 7,200 4.13 111 1.75 44 115 52.0 0.012 .30

4.5 184,000 20■800 2,200 6,600 4.75 130 2.38 60 158 72.0 0.007 .18 1/4°

5270,000 30■600 2,100 6,300 5.75 160 2.88 73 248 113.0 0.007 .18 per■mesh

6378,000 42■700 2,000 6,000 6.75 186 3.88 99 340 154.0 0.009 .23

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

Note:■■ n■■■1■indicates:■Maximum■RPM■of■spacer■coupling■determined■by■critical■speed■of■spacer■shaft.

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Gear

CSPCR Type

Dimensional Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CSPCR Type Spacer Couplings

CSPCR Type Dimensional Data

OAL LS SL ID1 - ID2 BSE S HL G DC OD HD CBD

Min Max Bore Rough Stock Min Min

Bore

Size in in in in mm in mm in in in in in in in in

7/8 6.76 2.00 1.00 1.25 31

All■

Solid

11 4.00 3.50 1.50 0.13 0.13 3.31 2.00 1.94

1.5 7.38 2.53 1.27 1.63 42 16 4.13 3.50 1.81 0.13 0.19 3.75 2.38 2.25

28.51 2.56 1.28 2.13 56 19 4.75 4.13 2.06 0.13 0.19 4.75 3.25 3.00

2.5 9.50 3.06 1.53 2.63 70 22 5.50 4.50 2.25 0.25 0.25 5.50 3.94 3.75

311.01 3.75 1.88 3.13 84 30 6.25 5.25 2.63 0.25 0.25 6.63 4.75 4.75

3.5 15.00 4.00 2.00 3.63 97 32 7.00 6.00 4.25 0.25 0.25 7.50 5.38 5.50

415.89 4.63 2.31 4.13 111 1.75 44 7.63 6.63 4.38 0.25 0.25 8.75 6.25 6.50

4.5 17.38 4.88 2.44 4.75 130 2.38 60 7.88 6.88 5.00 0.25 0.25 9.50 7.25 7.25

520.25 5.75 2.88 5.75 160 2.88 73 8.75 7.75 6.00 0.25 0.25 10.75 8.25 8.13

621.76 6.50 3.25 6.75 186 3.88 99 9.50 8.50 6.38 0.25 0.25 12.25 9.50 9.25

Notes:■■ n■■■Puller■Holes■are■standard■on■sizes■4■through■6.

■n■■Puller■Holes■are■available■for■sizes■7/8■through■3.5■at■an■additional■charge.

■n■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■Inch■bores■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■n■■For■metric■bores■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

■n■■Larger■sizes■are■available,■please■consult■Lovejoy■Technical■Support.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

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HP GD D T SP UJ VSD R SLD ED

138 630-852-0500

G-24

Gear

CCS Type

Performance Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CCS Type Cut-Out Shifter Couplings

The■CCS■Type■coupling■consists■of■two■ﬂex■hubs,■one■special■sleeve■

without■lubrication■holes■and■one■accessory■kit■which■includes■a■special■

seal■for■the■hub■that■disengages■to■elliminate■undue■friction■when■the■

disengaged■hub■is■turning■in■the■sleeve.■Standard■hub■is■hand■packed■

with■grease.

Features

■■Permits■quick■disengagement■of■driver■and■driven■shafts■without■

disassembling■the■coupling

■■Widely■used■on■dual■drives■and■equipment■operated■in■tandem

■■Special■seal■for■disengaging■hub

■■Also■available■with■pins■to■maintain■sleeve■in■both■engaged■and■

disengaged■positions

CCS Type Performance Data

ID1 - ID2

Size

Nominal Maximum Speed Max Bore Rough Weight Parallel Max Angular

Torque Unbal Bal Stock Bore Misalignment Misalignment

Degrees

in-lb Nm RPM RPM in mm in mm lbs kg in mm

7/8 2,500 300 6,000 18,000 1.25 31 0.44 11 ■ ■ 0.005 .13

1.5 7,600 900 5,000 15,000 1.63 42 0.63 16 Weight■ 0.007 .18

220,200 2■300 4,200 12,600 2.13 56 0.73 19 Determined 0.007 .18 ■1/2°

2.5 30,200 3■400 3,750 11,250 2.63 70 0.88 22 by■ 0.007 .18

350,400 5■700 3,600 9,000 3.13 84 1.19 30 W■&■OD 0.010 .25

3.5 88,200 10■000 2,800 8,400 3.63 97 1.25 32 Dimensions 0.012 .30

4126,000 14■200 2,400 7,200 4.13 111 1.75 44 supplied 0.012 .30

4.5 184,000 20■800 2,200 6,600 4.75 130 2.38 60 by■ 0.007 .18 ■1/4°

5270,000 30■600 2,100 6,300 5.75 160 2.88 73 Customer 0.007 .18

6378,000 42■700 2,000 6,000 6.75 186 3.88 99 ■ ■ 0.009 .23

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

■■Dimensions■of■Shifter■Groove■(width■and■outside■diameter).

■■Specify■which■hub■will■be■stationary■when■coupling■is■disengaged.

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Gear

CCS Type

Dimensional Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CCS Type Cut-Out Shifter Couplings

CCS Type Dimensional Data

R OAL LS W ID1 - ID2 HL BSE OD D HD1 HD T1

Max Bore Rough G G1

Stock Bore

Size in in in in in mm in mm in in in in in in in in

7/8 4.31 3.13 2.56 1.25 31 0.44 11 1.50 0.13 0.38 ■ 3.31 1.985 2.00 0.38

1.5 5.38 3.75 3.31 Per 1.63 42 0.63 16 1.81 0.13 0.50 Per■ 3.75 2.365 2.38 0.63

25.75 4.25 3.44 Cust 2.13 56 0.73 19 2.06 0.13 0.50 Cust 4.75 3.235 3.25 0.56

2.5 6.41 4.75 3.88 Specs 2.63 70 0.88 22 2.25 0.25 0.75 Specs 5.50 3.925 3.94 0.69

37.69 5.50 4.63 3.13 84 1.19 30 2.63 0.25 0.75 ■ 6.63 4.735 4.75 0.75

3.5 9.63 8.75 4.88 3.63 97 1.25 32 4.25 0.25 0.75 ■ 7.50 5.365 5.38 0.81

410.69 9.00 5.81 4.13 111 1.75 44 4.38 0.25 0.75 ■ 8.75 6.235 6.25 1.00

4.5 11.44 10.25 5.94 4.75 130 2.38 60 5.00 0.25 0.75 ■ 9.50 7.235 7.25 1.00

514.00 12.25 7.50 5.75 160 2.88 73 6.00 0.25 0.75 ■ 10.75 8.235 8.25 1.50

615.44 13.00 8.56 6.75 186 3.88 99 6.38 0.25 0.75 ■ 12.25 9.485 9.50 1.88

Notes:■■ n■■1■indicates:■T■is■the■length■of■travel■to■disengage■sleeve.

■n■■The■BSE■(distance■Between■Shaft■Ends)■vary■between■G■and■G1.

n■■Puller■Holes■are■standard■on■sizes■4■through■6.

n■■Puller■Holes■are■available■for■sizes■7/8■through■3.5■at■an■additional■charge.

n■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

n■■Inch■bores■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

n■■For■metric■bores■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

n■■Larger■sizes■are■available,■please■consult■Lovejoy■Technical■Support.

Disengaged Position

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

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140 630-852-0500

G-26

Gear

CSHP Type

Performance Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CSHP Type Shear Pin Couplings

The■CSHP■Type■coupling■consists■of■one■standard■ﬂex■hub,■two■

piece■shear■hub■and■one■set■of■shear■pins,■one■standard■sleeve■

and■accessory■kit.

Features

■■Designed■to■prevent■damage■to■connected■equipment

■■Manufactured■to■shear■at■predetermined■loads■

■■New■Pins■can■be■quickly■inserted

CSHP Type Performance Data

ID1 - ID2

Size

Nominal Maximum Flex or Rigid Shear Hub Weight Parallel Max Angular

Torque Speed Max Bore Max Bore Misalignment Misalignment

Unbal Bal Degrees

in-lb Nm RPM RPM in mm in mm lbs kg in mm

1.5 7,600 900 5,000 15,000 1.63 42 0.938 24 8 4 0.007 .18

220,200 2■300 4,200 12,600 2.13 56 1.500 38 10 5 0.007 .18 ■1/2°

2.5 30,200 3■400 3,750 11,250 2.63 70 1.750 44 15 7 0.007 .18

350,400 5■700 3,600 9,000 3.13 84 2.250 57 23 10 0.010 .25

3.5 88,200 10■000 2,800 8,400 3.63 97 2.625 66 47 21 0.012 .30

4126,000 14■200 2,400 7,200 4.13 111 3.625 92 90 41 0.012 .30

4.5 184,000 20■800 2,200 6,600 4.75 130 4.125 104 112 51 0.007 .18 ■1/4°

5270,000 30■600 2,100 6,300 5.75 160 4.500 114 177 80 0.007 .18

6378,000 42■700 2,000 6,000 6.75 186 5.875 149 250 114 0.009 .23

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

■■Specify■which■is■the■Shear■Pin■hub.

■■Specify■the■required■shear■torque.

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Gear

CSHP Type

Dimensional Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

CSHP Type Spacer Couplings

CSHP Type Dimensional Data

R OAL LS SL ID1 ID2 LTB HL G F OD HD

Flex or Rigid Shear Hub

Max Bore Max Bore

Size in in in in in m in mm in in in in in in

1.5 5.28 4.38 2.53 1.27 1.63 42 0.938 24 1.63 2.25 0.50 1.13 3.75 2.38

25.56 4.88 2.56 1.28 2.13 56 1.500 38 1.88 2.50 0.50 1.13 4.75 3.25

2.5 6.50 5.44 3.06 1.53 2.63 70 1.750 44 2.00 2.69 0.75 1.50 5.50 3.94

37.75 6.38 3.75 1.88 3.13 84 2.250 57 2.38 3.25 0.75 1.63 6.63 4.75

3.5 8.13 8.13 4.00 2.00 3.63 97 2.625 66 4.00 3.38 0.75 1.75 7.50 5.38

49.50 9.00 4.63 2.31 4.13 111 3.625 92 4.13 4.13 0.75 2.00 8.75 6.25

4.5 9.88 9.75 4.88 2.44 4.75 130 4.125 104 4.75 4.25 0.75 2.00 9.50 7.25

511.50 11.50 5.75 2.88 5.75 160 4.500 114 5.75 5.00 0.75 2.25 10.75 8.25

613.13 13.00 6.50 3.25 6.75 186 5.875 149 6.13 6.13 0.75 2.88 12.25 9.50

Notes:■■ n■■Puller■Holes■are■standard■on■sizes■4■through■6.

■n■■Puller■Holes■are■available■for■sizes■1.5■through■3.5■at■an■additional■charge.

n■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

n■■Inch■bores■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

n■■For■metric■bores■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

n■■Larger■sizes■are■available,■please■consult■Lovejoy■Technical■Support.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

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G-28

Gear

Nyﬂex® and Mite® Type

Performance Data

Lovejoy / Sier-Bath Nylon Sleeve Gear Couplings

Nyﬂex® and Mite® Type Couplings

The■Nyﬂex■and■Mite■coupling■consists■of■two■sintered■iron■ﬂex■hubs,■one■Nylon■sleeve■and■two■

Spiirolox■rings.

Features

■■No■lubrication■required■elliminating■the■need■for■seals

■■Sintered■Iron■hubs■with■crowned■teeth■to■provider■greater■misalignment■and■gouging■of■nylon■

sleeve

■■Resilient,■lightweight,■abrasion■and■corrosion■resistant■nylon■sleeve■accurately■molded■to■mesh■

with■hubs■elliminating■friction■and■need■of■lubrication

■■Center■groove■in■sleeves■readily■permits■their■use■in■vertical■applications■and■for■blind■assembly

■■Securely■held■hubs■and■sleeves■by■spring-steel■retaing■rings■yet■capable■of■easy■removal■and■still■

withstand■a■5,000■lbs■end■thrust

■■Minimum■backlash■operating■in■an■ambient■temperture■environment■of■-40■to■150°■F

Nyﬂex and Mite Type Performance Data

Nyﬂex Mite

Speed Torque Torque

RPM HP in-lb Nm HP in Nm

100 2.25 1,420 164 0.60 360 40.7

500 9.50 1,190 135 2.40 307 34.7

1,000 18.00 1,125 127 4.50 285 32.2

1,150 20.30 1,110 125 5.10 282 31.9

1,500 24.00 970 110 6.40 274 30.9

1,750 25.00 900 102 7.50 270 30.5

2,000 26.60 840 95 8.40 267 30.2

2,500 29.80 750 85 11.10 262 29.6

3,000 32.50 680 77 12.10 256 28.9

3,500 35.30 630 76 13.80 254 28.7

4,000 37.50 590 67 17.60 251 28.3

5,000 42.00 530 60 19.40 243 27.4

Nyﬂex Mite

Bore Keyway Bore Keyway

in in in in

0.375* No■Keyway 0.312** No■Keyway

0.500 1/8■x■1/16 0.500 1/8■x■1/16

0.625 3/16■x■3/32 0.625 3/16■x■3/32

0.750 3/16■x■3/32 0.750 3/16■x■3/32

0.875 3/16■x■3/32 0.875 3/16■x■3/32

0.937 1/4■x■1/8 0.937 1/4■x■1/8

1.000 1/4■x■1/8 1.000 1/4■x■1/8

1.125 1/4■x■1/8 1.125 1/4■x■1/8

1.187 1/4■x■1/8 ■ ■

1.250 1/4■x■1/8 ■ ■

1.312 5/16■x■5/32

1.375 5/16■x■5/32

1.437 3/8■x■3/16

1.500 3/8■x■3/16

1.625 3/8■x■3/16

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

Notes:■■ n■■■Angular■Misalignment:■Nyﬂex■5°;■Mite■3°.

■n■■■Clearence■ﬁt■bores■standard■through■1.250■inch■bores.

■n■■■Interference■ﬁt■bores■standard■over■1.250■inch■bores.

Notes:■■ n■■■*■indicates:■Rough■Stock■Bore■.375■–■.390■inches.

■n■■■**■indicates:■Rough■Stock■Bore■.312■–■.327■inches.

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Gear

Nyﬂex® and Mite® Type

Dimensional Data

Lovejoy / Sier-Bath Nylon Sleeve Gear Couplings

Nyﬂex® and Mite® Type Couplings

Nyﬂex and Mite Type Dimensional Data

ID1 - ID2 OAL LS LTB BSE OD HD

Max Bore Weight

Size in in in in in in in lbs

Nyﬂex 1.625 3.38 1.88 1.63 0.13 3.75 2.38 3.50

Mite 1.125 2.38 1.31 1.13 0.13 2.88 1.75 1.00

Notes:■■ n■■■Clearence■ﬁt■bores■with■set■screw■over■keyway■is■standard■through■1.250■inch■bores.

■n■■■Interference■ﬁt■bores■with■no■set■screw■is■standard■for■bores■over■1.250■inch.

■n■■Bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

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G-30

Gear

Dentex® (Nylon Sleeve Series)

Performance Data

Dentex® Nylon Sleeve Series Flexible Couplings

The■series■is■a■standard■coupling■with■two■hubs,■a■nylon■sleeve,■and■retaining■rings■depending■on■the■model■

selected.■The■coupling■has■a■precision■molded■nylon■sleeve■and■powder■metal■hub■with■no■bolts,■pins,■

ﬂanges,■or■protrusions■that■could■have■an■effect■on■balance■or■operational■safety.■Since■no■lubrication■is■

used,■the■couplings■can■readily■be■adapted■to■many■applications■including■vertical■and■blind■installations.

Features

■■Compact■in■size

■■Maintenance■Free■–■No■Lubrication■required

■■Can■accommodate■axial,■angular,■and■parallel■misalignment

■■Easy■to■assemble

■■Electrically■insulating

■■Can■be■used■in■temperature■ranges■from■-25°■to■80°■C■(optional■140°■C)

■■Nylon■sleeve■has■high■resistance■to■condensation■and■water,■hydrocarbon■based■petroleums,■and■alcohols

■■Not■ideal■for■use■with■acids,■benzyl■based■products,■cresol,■or■glycols

Dentex® B - Series Performance Data

Torque Capacity Max Misalignment Weight1ID1 - ID22

Nominal Maximum Speed Angular Axial Parallel Min Bore Max Bore

Size in-lbs Nm in-lbs Nm RPM Degrees in mm in mm kg lbs in mm in mm

B 14 89 10 177 20 8,000

1°■

Per■

Hub

+/-.039 +/-1

0.012 0.3 0.2 0.4 0.25 6 0.56 14

B 19 142 16 283 32 8,000 0.012 0.3 0.3 0.7 0.38 9 0.75 19

B 24 177 20 354 40 8,000 0.016 0.4 0.3 0.7 0.44 10 0.94 24

B 28 398 45 797 90 8,000 0.016 0.4 0.7 1.6 0.44 10 1.13 28

B 32 531 60 1,062 120 7,000 0.016 0.4 1.0 2.1 0.50 12 1.25 32

B 38 708 80 1,416 160 6,000 0.016 0.4 1.2 2.7 0.56 14 1.38 38

B 42 885 100 1,770 200 5,400 0.016 0.4 1.5 3.3 0.81 20 1.56 42

B 48 1,239 140 2,478 280 5,000 0.016 0.4 1.8 4.0 0.81 20 1.75 48

B 55 2,213 250 4,425 500 4,000 0.016 0.4 3.5 7.6 1.00 25 2.06 55

B 65 3,452 390 6,903 780 3,800 0.024 0.6 5.2 11.4 1.25 32 2.38 65

B 80 6,195 700 12,390 1■400 3,000 0.028 0.7 11.5 25.3 1.19 30 3.00 80

B 100 11,063 1■250 22,125 2■500 2,400 0.031 0.8 20.5 45.2 1.62 40 3.75 100

Notes:■■ n■■■1■indicates:■Weight■is■calculated■using■maximum■bore■and■no■keyway.■

■n■■■2■indicates:■Minimum■and■maximum■bore■sizes■are■given■for■straight■bores.■For■Taper■bores■and■splines,■contact■Lovejoy■Technical■Support.

Notes:■■ n■■■1■indicates:■Weight■is■calculated■using■maximum■bore■and■no■keyway.■

■n■■■2■indicates:■Minimum■and■maximum■bore■sizes■are■given■for■straight■bores.■For■Taper■bores■and■splines,■contact■Lovejoy■Technical■Support.

Notes:■■ n■■■1■indicates:■Weight■is■calculated■using■maximum■bore■and■no■keyway.■

■n■■■2■indicates:■Minimum■and■maximum■bore■sizes■are■given■for■straight■bores.■For■Taper■bores■and■splines,■contact■Lovejoy■Technical■Support.

Dentex® B4R - Series Performance Data

Torque Capacity Max Misalignment Weight 1 ID1 - ID2 2

Nominal Maximum Speed Angular Axial Parallel Min Bore Max Bore

Size in-lbs Nm in-lbs Nm RPM Degrees in mm in mm kg lbs in mm in mm

B4R 32 708 80 1,416 160 7,000

1°■

Per■

Hub

+/-.039 +/-1

0.016 0.4 1.1 2.4 0.50 12 1.25 32

B4R 45 1,239 140 2,478 280 5,000 0.016 0.4 1.5 3.3 0.81 20 1.56 42

B4R 65 3,452 390 6,903 780 3,800 0.024 0.6 5.4 11.9 1.00 25 2.38 65

B4R 80 6,195 700 12,390 1■400 3,000 0.028 0.7 11.7 25.8 1.19 30 3.00 80

B4R 100 11,063 1■250 22,125 2■400 2,400 0.031 0.8 20.8 45.9 1.62 40 3.75 100

Dentex® B3R - Series Performance Data

Torque Capacity Max Misalignment Weight 1 ID1 - ID2 2

Nominal Maximum Speed Angular Axial Parallel Min Bore Max Bore

Size in-lbs Nm in-lbs Nm RPM Degrees in mm in mm kg lbs in mm in mm

B3R 24 177 20 354 40 10,200

1°■

Per■

Hub

+/-.039 +/-1

0.016 0.4 0.3 0.7 0.44 10 0.94 24

B3R 28 398 45 797 90 8,300 0.016 0.4 0.8 1.8 0.44 10 1.13 28

B3R 32 708 80 1,416 160 7,000 0.016 0.4 1.1 2.4 0.50 12 1.25 32

B3R 45 1,239 140 2,478 280 5,000 0.016 0.4 1.5 3.3 0.81 20 1.56 42

B3R 65 3,452 390 6,903 780 3,800 0.024 0.6 5.4 11.9 1.25 32 2.38 65

B3R 80 6,195 700 12,390 1■400 3,000 0.028 0.7 11.6 25.6 1.19 30 3.00 80

B3R 100 11,063 1■250 22,125 2■400 2,400 0.031 0.8 20.7 45.6 1.62 40 3.75 100

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Gear

Dentex® (Nylon Sleeve Series)

Dimensional Data

Dentex® B - Series Dimensional Data

OAL LS HTS LTB BSE OD HD R T - Metric T - Inch

(Clearance) Set Screw Set Screw

Size in mm in mm in mm in mm in mm in mm in mm in mm Size SL (mm) Size SL (in)

B 14 1.97 50 1.46 37 0.26 6.5 0.91 23 0.16 4 1.57 40 0.98 25 0.65 16.5 M5 6 10-24 0.24

B 19 2.13 54 1.46 37 0.28 7.0 0.98 25 0.16 4 1.89 48 1.26 32 0.71 18.0 M5 6 10-24 0.24

B 24 2.20 56 1.61 41 0.30 7.5 1.02 26 0.16 4 2.05 52 1.42 36 0.73 18.5 M5 6 10-24 0.24

B 28 3.31 84 1.81 46 0.75 19.0 1.57 40 0.16 4 2.60 66 1.73 44 0.83 21.0 M8 10 5/16-18 0.39

B 32 3.31 84 1.89 48 0.71 18.0 1.57 40 0.16 4 2.99 76 1.97 50 0.87 22.0 M8 10 5/16-18 0.39

B 38 3.31 84 1.89 48 0.71 18.0 1.57 40 0.16 4 3.27 83 2.28 58 0.87 22.0 M8 10 5/16-18 0.39

B 42 3.46 88 1.97 50 0.75 19.0 1.65 42 0.16 4 3.62 92 2.56 65 0.91 23.0 M8 10 5/16-18 0.39

B 48 4.09 104 1.97 50 1.06 27.0 1.97 50 0.16 4 3.94 100 2.68 68 0.91 23.0 M8 10 5/16-18 0.39

B 55 4.88 124 2.56 65 1.16 29.5 2.36 60 0.16 4 4.92 125 3.27 83 1.20 30.5 M10 20 3/8-16 0.79

B 65 5.67 144 2.83 72 1.42 36.0 2.76 70 0.16 4 5.51 140 3.78 96 1.34 34.0 M10 20 3/8-16 0.79

B 80 7.32 186 3.66 93 1.83 46.5 3.54 90 0.24 6 6.89 175 4.88 124 1.71 43.5 M10 20 3/8-16 0.79

B 100 8.98 228 4.02 102 2.48 63.0 4.33 110 0.31 8 8.27 210 5.98 152 1.85 47.0 M12 30 3/8-16 1.18

Dentex® B4R - Series Dimensional Data

OAL LS HTS LTB BSE OD HD R T - Metric T - Inch

(Clearance) Set Screw Set Screw

Size in mm in mm in mm in mm in mm in mm in mm in mm Size SL (mm) Size SL (in)

B4R 32 3.31 84 2.28 58 0.51 13.0 1.57 40 0.16 4 3.31 84 1.97 50 1.06 27.0 M8 10 5/16-18 0.39

B4R 45 3.46 88 2.36 60 0.55 14.0 1.65 42 0.16 4 3.94 100 2.56 65 1.10 28.0 M8 10 5/16-18 0.39

B4R 65 5.67 144 3.31 84 1.18 30.0 2.76 70 0.16 4 5.51 140 3.78 96 1.57 40.0 M10 20 3/8-16 0.79

B4R 80 7.32 186 3.66 93 1.83 46.5 3.54 90 0.24 6 6.89 175 4.88 124 1.71 43.5 M10 20 3/8-16 0.79

B4R 100 8.98 228 4.02 102 2.48 63.0 4.33 110 0.31 8 8.27 210 5.98 152 1.85 47.0 M12 30 3/8-16 0.79

Dentex® B3R - Series Dimensional Data

OAL LS HTS LTB BSE OD HD R T - Metric T - Inch

(Clearance) Set Screw Set Screw

Size in mm in mm in mm in mm in mm in mm in mm in mm Size SL (mm) Size SL (in)

B3R 24 2.20 56 2.01 51 0.10 2.5 1.02 26 0.16 4 2.28 58 1.42 36 0.93 23.5 M5 6 10-24 0.24

B3R 28 3.31 84 2.20 56 0.55 14.0 1.57 40 0.16 4 2.76 70 1.73 44 1.02 26.0 M8 10 3/8-16 0.39

B3R 32 3.31 84 2.28 58 0.51 13.0 1.57 40 0.16 4 3.31 84 1.97 50 1.06 27.0 M8 10 3/8-16 0.39

B3R 45 3.46 88 2.36 60 0.55 14.0 1.65 42 0.16 4 3.94 100 2.56 65 1.10 28.0 M8 10 3/8-16 0.39

B3R 65 5.67 144 3.31 84 1.18 30.0 2.76 70 0.16 4 5.51 140 3.78 96 1.57 40.0 M10 20 3/8-16 0.39

B3R 80 7.32 186 3.66 93 1.83 46.5 3.54 90 0.24 6 6.89 175 4.88 124 1.71 43.5 M10 20 3/8-16 0.39

B3R 100 8.98 228 4.02 102 2.48 63.0 4.33 110 0.31 8 8.27 210 5.98 152 1.85 47.0 M12 30 3/8-16 0.39

B B4R B3R

Notes:■■ n■■■Inch■bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■n■■■Metric■bores■and■keyway■tolerances■conform■to■ISO■286■and■ANSI■/■AGMA■9112-A04.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

146 630-852-0500

G-32

Gear

C Universal Hub

Dimensional Data

Lovejoy / Sier-Bath Continuous Sleeve Gear Couplings

C Type Universal Hub

C Standard and Universal Hub Dimensions

L1 L2 L3 TW LTB LTB1

STD HUB UNIV HUB

Size in in in in in in

7/8 3.38 1.13 0.13 0.25 1.50 3.75

1.5 3.36 1.17 0.13 0.52 1.81 4.00

24.06 1.50 0.13 0.44 2.06 4.63

2.5 4.39 1.52 0.16 0.58 2.25 5.13

34.89 1.77 0.25 0.61 2.63 5.75

3.5 5.58 3.33 0.25 0.67 4.25 6.50

45.52 3.27 0.25 0.86 4.38 6.63

4.5 6.64 3.89 0.25 0.86 5.00 7.75

56.39 4.52 0.25 1.23 6.00 7.88

67.64 4.52 0.25 1.61 6.38 9.50

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Gear

Flanged Sleeve

Cut Away

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

Gasket

Med.■Carbon■Steel■

Hubs■&■Sleeves

Larger■Bore

Capacity

Interference■Fit

One■Piece■Sleeve

Flanges■Available■in■

Both■Shrouded■and■Exposed■

Bolt■Design

Draw-off■Holes■(Optional)

Vari-Crown®■Hub■Teeth■

Both■Hub■Diameters■are■Identical

“O”■Ring■Seals

Major■Diameter■Fit

Heat-Treated■Bolts■

for■High■Strength■Coated■for■

Corrosion■Resistance

Two■Lubrication■Plugs■

in■Each■Half■Sleeve

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

148 630-852-0500

G-34

Gear

F Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

F Type Flex-Flex Couplings

The■F■Type■coupling■consists■of■two■ﬂex■hubs,■two■sleeves■and■one■accessory■

kit.■This■coupling■is■supplied■with■exposed■bolts■as■standard.■Shrouded■bolts■are■

available■upon■request■through■size■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Provides■parallel,■angular■misalignment■and■end■ﬂoat

■■Flex■Half■coupling■interchangeable■with■industry■standards

F Type Performance Data

Size

ID1 - ID2

Nominal Maximum Max Bore Rough Stock Weight Axial Max Angular

Torque Speed Bore Misalignment Misalignment

Unbal Bal Degrees

in-lb Nm RPM RPM in mm in mm lbs kg in mm

1 7,600 850 6,000 9,000 1.625 42 0.44 11 9 4 0.056 1.4

1.5 18,900 2■140 5,500 8,250 2.125 56 0.69 18 19 9 0.060 1.5

231,500 3■560 5,000 7,500 2.750 73 0.94 24 34 15 0.085 2.2 ■

2.5 56,700 6■410 4,400 6,600 3.250 85 1.44 37 54 25 0.105 2.7

394,500 10■700 4,000 6,000 4.000 107 1.44 37 80 36 0.115 2.9

3.5 151,200 17■100 3,500 5,250 4.625 125 1.81 46 130 59 0.130 3.3 1.5°

4220,500 24■900 3,000 4,500 5.375 145 2.44 62 190 86 0.150 3.8 Per■Gear■Mesh

4.5 302,400 34■200 2,700 4,050 6.000 165 3.00 76 250 114 0.175 4.4 ■

5434,700 49■100 2,500 3,750 6.500 180 3.00 76 380 173 0.200 5.1

5.5 573,300 64■800 2,200 3,300 7.500 200 4.00 101 520 236 0.220 5.6

6749,700 84■700 2,100 3,150 8.250 225 4.00 101 650 295 0.120 3.0

71,008,000 113■900 2,000 3,000 9.500 255 5.00 127 950 431 0.135 3.4

81,323,000 149■500 1,900 2,850 11.500 310 6.00 152 1,560 708 0.160 4.1

91,827,000 206■400 1,800 2,700 12.500 340 7.00 177 2,015 915 0.165 4.2

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

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HPGDDTSPUJVSDRSLDED

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Gear

F Type

Dimensional Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

F Type Flex-Flex Couplings

Notes:■■ n■■■Exposed■Bolt■Design■is■standard.

■n■■■Shrouded■Bolt■Design■available■upon■request■for■sizes■1■through■5.5.

■n■■■Puller■Holes■are■standard■on■sizes■4■through■9.

■n■■■Puller■Holes■are■available■for■sizes■1■through■3.5■at■an■additional■charge.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■n■■■For■metric■bores■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

F Type Dimensional Data

OAL ID1 - ID2 LTB BSE AD FD D HD

Max Bore Rough Stock

Bore

Size in in mm in mm in in in in in in

13.50 1.625 42 0.44 11 1.69 0.13 2.04 4.56 3.06 2.31

1.5 4.00 2.125 56 0.69 18 1.94 0.13 2.32 6.00 3.97 3.00

25.00 2.750 73 0.94 24 2.44 0.13 2.94 7.00 4.86 4.00

2.5 6.25 3.250 85 1.44 37 3.03 0.19 3.47 8.38 5.84 4.63

37.38 4.000 107 1.44 37 3.59 0.19 3.97 9.44 6.84 5.63

3.5 8.63 4.625 125 1.81 46 4.19 0.25 4.57 11.00 7.91 6.50

49.75 5.375 145 2.44 62 4.75 0.25 5.00 12.50 9.25 7.50

4.5 10.94 6.000 165 3.00 76 5.31 0.31 5.50 13.63 10.38 8.50

512.38 6.500 180 3.00 76 6.03 0.31 6.34 15.31 11.56 9.50

5.5 14.13 7.500 200 4.00 101 6.91 0.31 7.04 16.75 12.72 10.50

615.13 8.250 225 4.00 101 7.41 0.31 8.35 18.00 14.00 11.50

717.75 9.500 255 5.00 127 8.69 0.38 9.82 20.75 15.75 13.00

822.38 11.500 310 6.00 152 11.00 0.38 12.31 23.25 18.34 15.50

923.50 12.500 340 7.00 177 11.50 0.50 13.00 26.00 20.38 17.00

Shrouded bolt design

also available

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

150 630-852-0500

G-36

Gear

FFR Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FFR Single Engagement (Flex-Rigid)

The■FRR■Type■coupling■consists■of■one■ﬂex■hub,■one■rigid■hub,■one■sleeve■and■

one■accessory■kit.■This■coupling■is■supplied■with■exposed■bolts■as■standard.■

Shrouded■bolts■are■available■upon■request■through■size■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■on■the■Flex■Hub■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Accommodates■angular■misalignment■only

■■Half■coupling■interchangeable■with■industry■standards

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

FFR Type Performance Data

ID1 ID2

Size

Nominal Maximum Flex Hubs Flex Hubs Rigid Hubs Rigid Hubs Weight Max Angular

Torque Speed Max Bore Rough Stock Max Bore Rough Stock Misalignment

Unbal Bal Bore Bore

in-lb Nm RPM RPM in mm in mm in mm in mm lbs kg Degrees

17,600 850 6,000 9,000 1.625 42 0.44 11 2.125 56 solid solid 9 4

1.5 18,900 2■140 5,500 8,250 2.125 56 0.69 18 2.813 76 solid solid 17 8

231,500 3■560 5,000 7,500 2.750 73 0.94 24 3.500 95 solid solid 34 15

2.5 56,700 6■410 4,400 6,600 3.250 85 1.44 37 4.250 114 solid solid 55 25

394,500 10■700 4,000 6,000 4.000 107 1.44 37 4.875 134 solid solid 86 39 1.5°

3.5 151,200 17■100 3,500 5,250 4.625 125 1.81 46 5.625 150 solid solid 125 61 Per■

4220,500 24■900 3,000 4,500 5.375 145 2.44 62 6.500 176 solid solid 195 89 Gear

4.5 302,400 34■200 2,700 4,050 6.000 165 3.00 76 7.625 202 solid solid 268 122 Mesh

5434,700 49■100 2,500 3,750 6.500 180 3.00 76 8.750 230 4.00 101 394 179

5.5 573,300 64■800 2,200 3,300 7.500 200 4.00 101 9.500 260 4.50 114 526 239

6749,700 84■700 2,100 3,150 8.250 225 4.00 101 10.500 285 5.50 127 687 312

71,008,000 113■900 2,000 3,000 9.500 255 5.00 127 12.000 320 5.75 139 1,017 462

81,323,000 149■500 1,900 2,850 11.500 310 6.00 152 14.000 375 6.50 165 1,609 730

91,827,000 206■400 1,800 2,700 12.500 340 7.00 177 15.500 415 7.50 190 2,128 966

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Gear

FFR Type

Dimensional Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FFR Type Flex-Rigid Couplings

FFR Type Dimensional Data

OAL ID1 ID2 LTB LTB 1 BSE AD FD D HD

Flex Hubs Flex Hubs Rigid Hubs Rigid Hubs

Max Bore Rough Stock Max Bore Rough Stock

Bore Bore

Size in in mm in mm in mm in mm in in in in in in in

13.41 1.625 42 0.44 11 2.125 56 solid solid 1.69 1.56 0.16 2.19 4.56 3.06 2.31

1.5 3.94 2.125 56 0.69 18 2.813 76 solid solid 1.94 1.84 0.16 2.47 6.00 3.97 3.00

24.88 2.750 73 0.94 24 3.500 95 solid solid 2.44 2.28 0.16 3.10 7.00 4.86 4.00

2.5 6.13 3.250 85 1.44 37 4.250 114 solid solid 3.03 2.91 0.19 3.65 8.38 5.84 4.63

37.19 4.000 107 1.44 37 4.875 134 solid solid 3.59 3.41 0.19 4.15 9.44 6.84 5.63

3.5 8.38 4.625 125 1.81 46 5.625 150 solid solid 4.19 3.97 0.22 4.78 11.00 7.91 6.50

49.50 5.375 145 2.44 62 6.500 176 solid solid 4.75 4.43 0.31 5.31 12.50 9.25 7.50

4.5 10.68 6.000 165 3.00 76 7.625 202 solid solid 5.31 5.03 0.34 5.97 13.63 10.38 8.50

512.06 6.500 180 3.00 76 8.750 230 4.00 101 6.03 5.69 0.34 6.69 15.31 11.56 9.50

5.5 13.40 7.500 200 4.00 101 9.500 260 4.50 114 6.91 6.15 0.34 7.34 16.75 12.72 10.50

615.23 8.250 225 4.00 101 10.500 285 5.50 127 7.41 7.41 0.41 8.78 18.00 14.00 11.50

717.88 9.500 255 5.00 127 12.000 322 5.75 139 8.69 8.69 0.50 10.31 20.75 15.75 13.00

822.50 11.500 310 6.00 152 14.000 375 6.50 165 11.00 11.00 0.50 12.81 23.25 18.34 15.50

923.56 12.500 340 7.00 177 15.500 415 7.50 190 11.50 11.50 0.56 13.56 26.00 20.38 17.00

Notes:■■ n■■■Exposed■Bolt■Design■is■standard.

■n■■■Shrouded■Bolt■Design■available■upon■request■for■sizes■1■through■5.5.

■n■■■Puller■Holes■are■standard■on■sizes■4■through■9.

■n■■■Puller■Holes■are■available■for■sizes■1■through■3.5■at■an■additional■charge.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■n■■■For■metric■bores■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

152 630-852-0500

G-38

Gear

FFS Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FFS – Floating Shaft Gear Coupling

The■FFS■Type■coupling■consists■of■two■ﬂex-rigid■couplings■and■one■ﬂoating■

shaft.■This■coupling■is■supplied■with■rigid■hubs■outboard■unless■otherwise■

speciﬁed.■Exposed■bolts■are■standard.■Shrouded■bolts■are■available■upon■

request■tru■sizes■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■on■Flex■Hubs■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Accommodates■angular,■parallel,■and■axial■misalignment

■■Removal■of■center■assembly■allows■for■ease■of■maintenance■without■

repositioning■machinery

■■Rigid■hubs■outboard■allows■for■larger■shaft■diameters

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Equipment■shaft■sizes.

■■Specify■which■hubs■are■to■be■used■on■the■equipment■(Rigid■or■Flex).

■■Rigid■hubs■will■be■used■on■the■equipment■unless■otherwise■speciﬁed.

FFS Type Performance Data

Size

ID1 - ID2 ID1 - ID2 ID1 - ID2 ID1 - ID2

Nominal Maximum Rigid Hubs Rigid Hubs Flex Hubs Flex Hubs Weight Angular

Torque Speed1Max Bore Rough Stock Max Bore Rough Stock Misalignment

Unbal Bal Bore Bore Max

in-lb Nm RPM RPM in mm in mm in mm in mm lbs kg Degrees

17,600 850 6,000 9,000 2.125 56

Solid

w/Center

1.625 42 0.44 11 9 4

1.5 18,900 2■140 5,500 8,250 2.813 76 2.125 56 0.69 18 19 9

231,500 3■560 5,000 7,500 3.500 95 2.750 73 0.94 24 34 15 ■

2.5 56,700 6■410 4,400 6,600 4.250 114 3.250 85 1.44 37 54 25

394,500 10■700 4,000 6,000 4.875 134 4.000 107 1.44 37 80 36

3.5 151,200 17■100 3,500 5,250 5.625 150 4.625 125 1.81 46 130 59 1.5°

4220,500 24■900 3,000 4,500 6.500 176 5.375 145 2.44 62 190 86 Per

4.5 302,400 34■200 2,700 4,050 7.625 202 6.000 165 3.00 76 250 114 Gear■

5434,700 49■100 2,500 3,750 8.750 231 4.000 101 6.500 180 3.00 76 380 173 Mesh

5.5 573,300 64■800 2,200 3,300 9.500 260 4.500 114 7.500 200 4.00 101 520 236

6749,700 84■700 2,100 3,150 10.500 288 5.500 127 8.250 225 4.00 101 650 295

71,008,000 113■900 2,000 3,000 12.000 318 5.750 139 9.500 255 5.00 127 950 431

81,323,000 149■500 1,900 2,850 14.000 380 6.500 165 11.500 310 6.00 152 1,560 708

91,827,000 206■400 1,800 2,700 15.500 418 7.500 190 12.500 340 7.00 177 2,015 915

Note:■■ n■■1■indicates:■Maximum■RPM■of■ﬂoating■shaft■set■determined■by■critical■speed■of■ﬂoating■shaft.

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Gear

FFS Type

Dimensional Data

Lovejoy / Sier-Bath Flanged Gear Couplings

FFS Type Floating Shaft Couplings

FFS Type Dimensional Data

OAL BSE ID1 - ID2 ID1 - ID2 LTB 1 LTB G AD FD D D 1 HD

Min Min Rigid Hubs Rigid Hubs Flex Hubs Flex Hubs

Max Bore Rough Stock Max Bore Rough Stock

Bore Bore

Size in in in mm in mm in mm in mm in in in in in in in in

18.07 4.94 2.125 56

Solid

w/Center

1.625 42 0.44 11 1.56 1.69 0.16 2.06 4.56 3.06 3.06 2.31

1.5 9.19 5.50 2.813 76 2.125 56 0.69 18 1.84 1.94 0.16 2.37 6.00 3.97 3.97 3.00

212.06 7.50 3.500 95 2.750 73 0.94 24 2.28 2.44 0.16 2.94 7.00 4.84 4.91 4.00

2.5 14.37 8.56 4.250 114 3.250 85 1.44 37 2.91 3.03 0.19 3.53 8.38 5.84 5.91 4.63

316.69 9.88 4.875 134 4.000 107 1.44 37 3.41 3.59 0.19 3.97 9.44 6.84 6.91 5.63

3.5 19.25 11.31 5.625 150 4.625 125 1.81 46 3.97 4.19 0.22 4.56 11.00 7.91 7.91 6.50

421.82 12.94 6.500 176 5.375 145 2.44 62 4.44 4.75 0.31 5.00 12.50 9.25 9.25 7.50

4.5 24.69 14.63 7.625 202 6.000 165 3.00 76 5.03 5.31 0.34 5.69 13.63 10.38 10.38 8.50

528.07 16.69 8.750 231 4.000 101 6.500 180 3.00 76 5.69 6.03 0.34 6.35 15.31 11.56 11.56 9.50

5.5 30.87 18.56 9.500 260 4.500 114 7.500 200 4.00 101 6.16 6.91 0.34 6.59 16.75 12.72 12.81 10.50

635.37 20.56 10.500 288 5.500 127 8.250 225 4.00 101 7.41 7.41 0.41 8.78 18.00 14.00 14.00 11.50

740.63 23.25 12.000 318 5.750 139 9.500 255 5.00 127 8.69 8.69 0.50 10.31 20.75 15.75 15.75 13.00

849.63 27.63 14.000 380 6.500 165 11.500 310 6.00 152 11.00 11.00 0.50 12.81 23.25 18.34 18.50 15.50

952.13 29.13 15.500 418 7.500 190 12.500 340 7.00 177 11.50 11.50 0.56 13.56 26.00 20.38 20.38 17.00

Notes:■■ n■■■Exposed■Bolt■Design■is■standard.

■n■■■Shrouded■Bolt■Design■available■upon■request■for■sizes■1■through■5.5.

■n■■■Puller■Holes■are■standard■on■sizes■4■through■9.

■n■■■Puller■Holes■are■available■for■sizes■1■through■3.5■at■an■additional■charge.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■n■■■For■metric■bores■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

Rigid Hubs Outboard

Flex Hubs Outboard

Maximum RPM of ﬂoating shaft set determined by

critical speed of ﬂoating shaft

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

154 630-852-0500

G-40

Gear

FHD Type

Performance Data

Lovejoy / Sier-Bath Heavy Duty Flanged Sleeve Gear Couplings

FHD Type Flex-Flex Couplings

The■FHD■Type■coupling■consists■of■two■ﬂex■hubs,■two■sleeves■with■bolt-on■seal■carriers■and■

one■accessory■kit.■This■coupling■is■supplied■with■exposed■bolts■only.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Provides■parallel,■angular■misalignment■and■end■ﬂoat

■■Designed■for■high-torque■low-speed■applications■that■occur■in■mill■operations

FHD Type Performance Data

ID1 - ID2

Nominal Maximum Max Bore Weight Parallel Angular

Size

Torque Speed Standard Misalignment Misalignment

Unbal Bal Keyway Degrees

in-lb Nm RPM RPM in mm lbs kg in mm

71,008,000 110■000 2,000 3,000 9.500 255 950 431 0.135 3.429

0.75°

Per■Gear■Mesh

81,323,500 150■000 1,900 2,850 11.500 310 1,560 708 0.160 4.064

91,827,700 210■000 1,750 2,625 12.500 340 2,015 915 0.165 4.191

10 2,521,000 280■000 1,550 2,325 13.750 355 2,500 1,135 0.180 4.572

11 3,466,000 390■000 1,400 2,100 15.500 410 3,380 1,535 0.205 5.207

12 4,412,000 500■000 1,300 1,950 17.000 435 4,165 1,891 0.210 5.334

13 5,249,000 600■000 1,150 1,725 18.250 480 5,215 2,368 0.230 5.842

14 6,429,000 730■000 1,050 1,575 19.500 — 6,400 2,906 0.255 6.477

15 7,752,000 880■000 900 1,350 21.000 — 7,710 3,500 0.280 7.112

16 9,454,000 1■070■000 800 1,200 22.500 — 9,250 4,200 0.295 7.493

18 12,605,000 1■420■000 550 825 25.500 — 11,890 5,398 0.295 7.493

20 17,017,000 1■920■000 450 675 28.000 — 16,830 7,641 0.280 7.112

22 21,429,000 2■420■000 380 570 31.000 — 21,970 9,974 0.310 7.874

24 26,471,000 2■990■000 325 485 34.000 — 27,735 12,592 0.300 7.620

26 32,773,000 3■700■000 280 420 37.000 — 34,370 15,604 0.300 7.620

28 39,076,000 4■410■000 240 360 40.000 — 40,910 18,573 0.320 8.128

30 47,269,000 5■340■000 220 330 42.000 — 47,470 21,551 0.320 8.128

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

JWJISCJSFMC

HPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

155

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Gear

FHD Type

Dimensional Data

Lovejoy / Sier-Bath Heavy Duty Flanged Sleeve Gear Couplings

FHD Type Flex-Flex Couplings

FHD Type Dimensional Data

OAL ID1 - ID2 LTB BSE FD D HD

Max Bore 1 Rectangular

Standard Keyway

Keyway Width Depth

Size in in mm in in in in in in in

717.76 9.500 255 2.5000 0.8750 8.69 0.38 20.75 15.75 13.00

822.38 11.500 310 3.0000 1.0000 11.00 0.38 23.25 18.34 15.50

923.50 12.500 340 3.0000 1.0000 11.50 0.50 26.00 20.38 17.00

10 24.50 13.750 355 3.5000 1.2500 12.00 0.50 28.00 22.31 18.50

11 26.75 15.500 410 4.0000 1.5000 13.13 0.50 30.50 24.36 21.00

12 28.25 17.000 435 4.0000 1.5000 13.88 0.50 33.00 26.63 22.75

13 30.00 18.250 480 5.0000 1.7500 14.63 0.75 35.75 28.88 24.75

14 31.75 19.500 — 5.0000 1.7500 15.50 0.75 38.00 31.68 26.50

15 33.75 21.000 — 5.0000 1.7500 16.50 0.75 40.50 32.97 28.50

16 35.75 22.500 — 6.0000 2.0000 17.38 1.00 43.00 35.13 30.38

18 37.00 25.500 — 6.0000 2.0000 18.00 1.00 47.25 39.25 34.25

20 43.25 28.000 — 7.0000 2.5000 21.13 1.00 53.50 43.50 38.00

22 47.00 31.000 — 8.0000 2.7500 23.00 1.00 59.00 47.63 41.81

24 50.50 34.000 — 9.0000 3.0000 24.75 1.00 64.25 51.75 45.50

26 54.00 37.000 — 9.0000 3.0000 26.50 1.00 68.50 55.88 49.38

28 55.25 40.000 — 10.0000 3.5000 27.13 1.00 73.75 60.00 53.00

30 56.25 42.000 — 10.0000 3.5000 27.63 1.00 78.00 64.13 57.00

Notes:■■ n■■■Exposed■Bolt■Design■is■standard.

■n■■■Puller■Holes■are■standard.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Inch■bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04,■for■bores■above■18■inches,■keyways■conform■to■ANSI■B17.1.

■n■■■For■metric■bore■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

156 630-852-0500

G-42

Gear

FHDFR Type

Performance Data

Lovejoy / Sier-Bath Heavy Duty Flanged Sleeve Gear Couplings

FHDFR Type Flex-Rigid Couplings

The■FHDFR■Type■coupling■consists■of■one■ﬂex■hub,■one■sleeve■

with■bolt-on■seal■carrier,■one■rigid■hub■and■one■accessory■kit.■This■

coupling■is■supplied■with■exposed■bolts■only.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Provides■parallel,■angular■misalignment■and■end■ﬂoat

■■Designed■for■high-torque■low-speed■applications■that■occur■in■

mill■operations■

FHDFR Type Performance Data

ID1 ID2

Size

Nominal Maximum Flex Hubs Rigid Hubs Weight Max

Torque Speed Max Bore Max Bore Angular

in-lb Nm Unbal Bal Std Keyway Std Keyway Misalignment

x 1000 RPM RPM in mm in mm lbs kg Degrees

71,008 110 2,000 3,000 9.500 255 12.000 320 1,017 462

0.75°

Per■

Gear■

Mesh

81,324 150 1,900 2,850 11.500 310 14.000 375 1,609 730

91,827 210 1,750 2,625 12.500 340 15.500 415 2,128 966

10 2,521 280 1,550 2,325 13.750 355 17.000 455 2,723 1,236

11 3,466 390 1,400 2,100 15.500 410 18.500 500 3,640 1,653

12 4,412 500 1,300 1,950 17.000 435 20.250 — 4,508 2,047

13 5,249 600 1,150 1,725 18.250 480 22.000 — 5,600 2,542

14 6,429 730 1,050 1,575 19.500 — 23.500 — 6,837 3,104

15 7,752 880 900 1,350 21.000 — 24.250 — 8,244 3,743

16 9,454 1■070 800 1,200 22.500 — 26.000 — 9,848 4,471

18 12,605 1■420 550 825 25.500 — 28.000 — 12,673 5,754

20 17,017 1■920 450 675 28.000 — 31.000 — 18,113 8,223

22 21,429 2■420 380 570 31.000 — 34.000 — 23,671 10,747

24 26,471 2■990 325 485 34.000 — 37.000 — 29,958 13,601

26 32,773 3■700 280 420 37.000 — 40.000 — 37,014 16,845

28 39,076 4■410 240 360 40.000 — 43.000 — 44,012 19,981

30 47,269 5■340 220 330 42.000 — 46.000 — 51,065 23,184

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

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Gear

FHDFR Type

Dimensional Data

FHDFR Type Dimensional Data

OAL ID1 ID2 LTB LTB1 BSE FD D HD

Flex Hubs Rigid Hubs

Max Bore Max Bore

Std Keyway Std Keyway

Size in in mm in mm in in in in in in

717.81 9.500 255 12.000 320 8.69 8.69 0.50 20.75 15.75 13.00

822.50 11.500 310 14.000 375 11.00 11.00 0.50 23.25 18.34 15.50

923.56 12.500 340 15.500 415 11.50 11.50 0.56 26.00 20.38 17.00

10 24.63 13.750 355 17.000 455 12.00 12.00 0.63 28.00 22.31 18.50

11 26.88 15.500 410 18.500 500 13.13 13.13 0.63 30.50 24.36 21.00

12 28.38 17.000 435 20.250 — 13.88 13.88 0.63 33.00 26.63 22.75

13 30.00 18.250 480 22.000 — 14.63 14.63 0.75 33.75 28.88 24.75

14 31.75 19.500 — 23.500 — 15.50 15.50 0.75 38.00 31.00 26.50

15 33.75 21.000 — 24.250 — 16.50 16.50 0.75 40.50 32.97 28.50

16 35.75 22.500 — 26.000 — 17.38 17.38 1.00 43.00 35.13 30.38

18 37.00 25.500 — 28.000 — 18.00 18.00 1.00 47.25 39.25 34.25

20 43.25 28.000 — 31.000 — 21.13 21.13 1.00 53.50 43.50 38.00

22 47.13 31.000 — 34.000 — 23.00 23.00 1.13 59.00 47.63 41.81

24 50.63 34.000 — 37.000 — 24.75 24.75 1.13 64.25 51.75 45.50

26 54.13 37.000 — 40.000 — 26.50 26.50 1.13 68.50 55.88 49.38

28 55.38 40.000 — 43.000 — 27.13 27.13 1.13 73.75 60.00 53.00

30 56.38 42.000 — 46.000 — 27.63 27.63 1.13 78.00 64.13 57.00

Lovejoy / Sier-Bath Heavy Duty Flanged Sleeve Gear Couplings

FHDFR Type Flex-Rigid Couplings

Notes:■■ n■■■Exposed■Bolt■Design■is■standard.

■n■■■Puller■Holes■are■standard.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Inch■bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04,■for■bores■above■18■inches,■keyways■

are■to■ANSI■B17.1.

■n■■■Metric■bore■and■keyway■tolerances■conform■to■ISO■286■and■ANSI■/■AGMA■9112-A04.

■n■■■Consult■Lovejoy■Technical■Support■for■metric■bores■larger■than■500mm.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

158 630-852-0500

G-44

Gear

FHDFS Type

Performance Data

Lovejoy / Sier-Bath Heavy Duty Flanged Sleeve Gear Couplings

FHDFS Type Floating Shaft Couplings

The■FHDFS■Type■coupling■consists■of■two■ﬂex-rigid■couplings■and■one■ﬂoating■shaft.■The■coupling■is■supplied■

with■the■rigid■hubs■outboard■unless■otherwise■speciﬁed.■The■coupling■comes■with■exposed■bolts■only.

Features

■■Patented■Vari-Crown®■tooth■form■on■Flex■Hubs■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Accommodates■parallel■and■angular■misalignment

■■Removal■of■center■assembly■allows■forease■of■maintenance■without■repositioning■machinery

■■Rigid■hubs■outboard■allows■for■larger■shaft■diameters

■■Designed■for■high-torque■low-speed■applications■that■occur■in■mill■operations

FHDFS Type Performance Data

ID1 ID2

Size

Nominal Maximum Flex Hubs Rigid Hubs Weight Max Angular

Torque Speed1Max Bore Max Bore Misalignment

Unbal Bal Std Keyway Std Keyway Degrees

in-lb Nm RPM RPM in mm in mm lbs kg

7 1,008,000 113■900 2,000 3,000 9.500 255 12.000 320 1,017 462

8 1,323,000 149■000 1,900 2,850 11.500 310 14.000 375 1,609 730

9 1,827,000 206■400 1,750 2,625 12.500 340 15.500 415 2,128 966 ■

10 2,521,000 280■000 1,550 2,325 13.750 355 17.000 455 2,723 1,236

11 3,500,000 390■000 1,400 2,100 15.500 410 18.500 500 3,640 1,653

12 4,400,000 500■000 1,300 1,950 17.000 435 20.250 — 4,508 2,047 0.75°

13 5,300,000 600■000 1,150 1,725 18.250 480 22.000 — 5,600 2,542 Per■Gear■Mesh

14 6,400,000 730■000 1,050 1,575 19.500 — 23.500 — 6,837 3,104 ■

15 7,700,000 880■000 900 1,350 21.000 — 24.250 — 8,244 3,743

16 9,500,000 1■070■000 800 1,200 22.500 — 26.000 — 9,848 4,471

18 12,600,000 1■420■000 550 825 25.500 — 28.000 — 12,673 5,754

20 17,000,000 1■920■000 450 675 28.000 — 31.000 — 18,113 8,223

22 21,400,000 2■420■000 380 570 31.000 — 34.000 — 23,671 10,747

24 26,500,000 2■990■000 325 488 34.000 — 37.000 — 29,958 13,601

26 32,800,000 3■700■000 280 420 37.000 — 40.000 — 37,104 16,845

28 39,100,000 4■410■000 240 360 40.000 — 43.000 — 44,012 19,981

30 47,300,000 5■340■000 220 330 42.000 — 46.000 — 51,065 23,184

Note:■■ n■■1■indicates:■Maximum■RPM■of■ﬂoating■shaft■set■determined■by■critical■speed■of■ﬂoating■shaft.

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Connecting■equipment■shaft■sizes.

■■Specify■which■hubs■are■to■be■used■on■the■equipment■(Rigid■or■Flex).

■■Rigid■hubs■will■be■used■on■the■equipment■unless■otherwise■speciﬁed.

■■Length■of■ﬂoating■shaft■may■affect■max■angular■misalignment.

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JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

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Gear

FHDFS Type

Dimensional Data

Lovejoy / Sier-Bath Heavy Duty Flanged Sleeve Gear Couplings

FHDFS Type Floating Shaft Couplings

FHDFS Type Dimensional Data

OAL BSE ID1 ID2 LTB 1 LTB G FD D D 1 HD

Flex Hubs Rigid Hubs

Max Bore Max Bore

Std Keyway Std Keyway

Size in in in mm in mm in in in in in in in

7■ 9.500 255 12.000 320 8.69 8.69 0.50 20.75 15.75 15.75 13.00

8To■Be■Determined 11.500 310 14.000 375 11.00 11.00 0.50 23.25 18.34 18.50 15.50

9From■Customer■ 12.500 340 15.500 415 11.50 11.50 0.56 26.00 20.38 20.38 17.00

10 Speciﬁcations 13.750 355 17.000 455 12.00 12.00 0.63 28.00 22.31 22.38 18.50

11 ■ 15.500 410 18.500 500 13.13 13.13 0.63 30.50 24.36 24.50 21.00

12 ■ 17.000 435 20.250 — 13.88 13.88 0.63 33.00 26.63 26.63 22.75

13 ■ 18.250 480 22.000 — 14.63 14.63 0.75 33.75 28.88 28.88 24.75

14 ■ 19.500 — 23.500 — 15.50 15.50 0.75 38.00 31.00 31.00 26.50

15 ■ 21.000 — 24.250 — 16.50 16.50 0.75 40.50 32.97 33.13 28.50

16 ■ 22.500 — 26.000 — 17.38 17.38 1.00 43.00 35.13 35.13 30.38

18 ■ 25.500 — 28.000 — 18.00 18.00 1.00 47.25 39.25 39.25 34.25

20 ■ 28.000 — 31.000 — 21.13 21.13 1.00 53.50 43.50 43.50 38.00

22 ■ 31.000 — 34.000 — 23.00 23.00 1.13 59.00 47.63 47.63 41.81

24 ■ 34.000 — 37.000 — 24.75 24.75 1.13 64.25 51.75 51.75 45.50

26 37.000 — 40.000 — 26.50 26.50 1.13 68.50 55.88 55.88 49.38

28 40.000 — 43.000 — 27.13 27.13 1.13 73.75 60.00 60.00 53.00

30 42.000 — 46.000 — 27.63 27.63 1.13 78.00 64.13 64.13 57.00

Rigid Hubs Outboard

Flex Hubs Outboard

Maximum RPM of ﬂoating shaft set determined by

critical speed of ﬂoating shaft

Notes:■■ n■■■Exposed■Bolt■Design■is■standard.

■n■■■Puller■Holes■are■standard.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Inch■bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04,■for■bores■about■18■inches,■keyways■are■to■ANSI■B17.1.

■n■■■For■metric■bore■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

■n■■■Consult■Lovejoy■Technical■Support■for■metric■bores■larger■than■500mm.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

160 630-852-0500

G-46

Gear

FMM Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FMM Type Mill Couplings

The■FMM■Type■coupling■consists■of■one■standard■ﬂex■hub,■one■universal■straight■

bored■hub■as■standard,■two■sleeves■and■one■accessory■kit.■This■coupling■is■

supplied■with■exposed■bolts■as■standard.■Shrouded■bolts■are■available■upon■

request■through■size■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Provides■parallel,■angular■misalignment■and■end■ﬂoat

■■Flex■Half■coupling■interchangeable■with■industry■standards

■■Long■Universal■Hub■supplied■to■customer■speciﬁcations■with■straight■or■

tapered■bores

FMM Type Performance Data

ID1 - ID2

Size

Nominal Maximum Max Bore Rough Stock Weight Parallel Max Angular

Torque Speed Bore Misalignment Misalignment

Unbal Bal Degrees

in-lb Nm RPM RPM in mm in mm lbs kg in mm

17,600 850 6,000 9,000 1.625 42 0.44 11 12 5 0.056 1.4

■

1.5°

Per■Gear■Mesh

■

1.5 18,900 2■140 5,500 8,250 2.125 56 0.69 18 24 11 0.060 1.5

231,500 3■560 5,000 7,500 2.750 73 0.94 24 45 20 0.085 2.2

2.5 56,700 6■410 4,400 6,600 3.250 85 1.44 37 71 32 0.105 2.7

394,500 10■700 4,000 6,000 4.000 107 1.44 37 104 47 0.115 2.9

3.5 151,200 17■100 3,500 5,250 4.625 125 1.81 46 151 69 0.130 3.3

4220,500 24■900 3,000 4,500 5.375 145 2.44 62 234 86 0.150 3.8

4.5 302,400 34■200 2,700 4,050 6.000 165 3.00 76 310 141 0.175 4.4

5434,700 49■100 2,500 3,750 6.500 180 3.00 76 450 204 0.200 5.1

5.5 573,300 64■800 2,200 3,300 7.500 200 4.00 101 609 276 0.220 5.6

6749,700 84■700 2,100 3,150 8.250 225 4.00 101 764 347 0.120 3.0

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

■■Taper■per■foot■and■length■of■taper■if■tapered■bore■is■required.

■■Specify■counterbore■dimensions■if■desired.

■■Submit■a■drawing■if■available.

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JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

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Gear

FMM Type

Dimensional Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FMM Type Mill Couplings

FMM Type Dimensional Data

OAL ID1 - ID2 LTB LTB1 BSE FD D HD

Max Bore Rough Stock Max

Bore

Size in in mm in mm in in in in in in

15.81 1.625 42 0.44 11 1.69 4.00 0.13 4.56 3.06 2.31

1.5 6.56 2.125 56 0.69 18 1.94 4.50 0.13 6.00 3.97 3.00

28.06 2.750 73 0.94 24 2.44 5.50 0.13 7.00 4.86 4.00

2.5 9.72 3.250 85 1.44 37 3.03 6.50 0.19 8.38 5.84 4.63

310.78 4.000 107 1.44 37 3.59 7.00 0.19 9.44 6.84 5.63

3.5 11.94 4.625 125 1.81 46 4.19 7.50 0.25 11.00 7.91 6.50

413.25 5.375 145 2.44 62 4.75 8.25 0.25 12.50 9.25 7.50

4.5 14.63 6.000 165 3.00 76 5.31 9.00 0.31 13.63 10.38 8.50

515.84 6.500 180 3.00 76 6.03 9.50 0.31 15.31 11.56 9.50

5.5 17.72 7.500 200 4.00 101 6.91 10.50 0.31 16.75 12.72 10.50

618.97 8.250 225 4.00 101 7.41 11.25 0.31 18.00 14.00 11.50

Notes:■■ n■■■LTB1■Dimensions■are■the■maximum■lengths■of■Universal■Hubs■kept■in■stock■and■altered■to■customer■speciﬁcations.■Longer■length■

hubs■are■made■to■order.

■n■■■Exposed■Bolt■Design■is■standard.

■n■■Shrouded■Bolt■Design■available■upon■request■for■sizes■1■through■5.5.

■n■■Puller■Holes■are■standard■on■sizes■4■through■6.

■n■■Puller■Holes■are■available■for■sizes■1■through■3.5■at■an■additional■charge.

■n■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■Inch■bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■n■■■For■metric■bore■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

162 630-852-0500

G-48

Gear

FMM Mill Motor Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FMM Type Mill Motor Couplings

The■FMM■Type■coupling■consists■of■one■standard■ﬂex■hub,■one■universal■straight■bored■

hub■as■standard,■two■sleeves■and■one■accessory■kit.■This■coupling■is■supplied■with■

exposed■bolts■as■standard.■Shrouded■bolts■are■available■upon■request■through■size■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Provides■parallel,■angular■misalignment■and■end■ﬂoat

■■Flex■Half■coupling■interchangeable■with■industry■standards

■■Long■Universal■Hub■used■for■AISE■Motor■Frames

FMM Type Mill Motor Performance Data

ID1 - ID2

Size

Nominal Maximum Max Bore Rough Stock Weight Parallel Max Angular

Torque Speed Bore Misalignment Misalignment

Unbal Bal Degrees

in-lb Nm RPM RPM in mm in mm lbs kg in mm

17,600 850 6,000 9,000 1.625 42 0.44 11 12 5 0.056 1.4

■

1.5°

Per■Gear■Mesh

■

1.5 18,900 2■140 5,500 8,250 2.125 56 0.69 18 24 11 0.060 1.5

231,500 3■560 5,000 7,500 2.75 73 0.94 24 45 20 0.085 2.2

2.5 56,700 6■410 4,400 6,600 3.25 85 1.44 37 71 32 0.105 2.7

394,500 10■700 4,000 6,000 4.000 107 1.44 37 104 47 0.115 2.9

3.5 151,200 17■100 3,500 5,250 4.625 125 1.81 46 151 69 0.130 3.3

4220,500 24■900 3,000 4,500 5.375 145 2.44 62 234 86 0.150 3.8

4.5 302,400 34■200 2,700 4,050 6.000 165 3.00 76 310 141 0.175 4.4

5434,700 49■100 2,500 3,750 6.500 180 3.00 76 450 204 0.200 5.1

5.5 573,300 64■800 2,200 3,300 7.500 200 4.00 101 609 276 0.220 5.6

6749,700 84■700 2,100 3,150 8.250 225 4.00 101 764 347 0.120 3.0

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

■■Mill■Motor■frame■size.

■■Submit■a■drawing■if■available.

JWJISCJSFMC

HPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

163

www.lovejoy-inc.com G-49

Gear

FMM Mill Motor Type

Dimensional Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FMM Type Mill Motor Couplings

FMM Type Mill Motor Dimensional Data

AISE OAL ID1 LTB LTB1 G1 BSE FD D HD TB Mill Motor Hub Kw

Frame W H

Size No in in in in in in in in in in in

1.5

602/802 6.00

2.125 1.94

3.00 1.06■*

0.13 6.00 3.97 3.00

1.7485■-■1.7495 0.50 0.25

603/803 6.56 3.50 1.13■* 1.998■-■1.999 0.50 0.25

604/804 6.56 3.50 1.13■* 1.998■-■1.999 0.50 0.25

603/803 7.06

2.750 2.44

3.50 1.13

0.13 7.00 4.86 4.00

1.998■-■1.999 0.50 0.25

604/804 7.06 3.50 1.13 1.998■-■1.999 0.50 0.25

606/806 7.69 4.00 1.25 2.498■-■2.499 0.50 0.25

2.5

603/803 7.72

3.250 3.03

3.50 1.19

0.19 8.38 5.84 4.63

1.998■-■1.999 0.50 0.25

604/804 7.72 3.50 1.19 1.998■-■1.999 0.50 0.25

606/806 8.34 4.00 1.31 2.498■-■2.499 0.50 0.25

608/808 8.34 4.50 1.44 2.998■-■2.999 0.75 0.25

606/806 8.91

4.000 3.59

4.00 1.31

0.19 9.44 6.84 5.63

2.498■-■2.499 0.50 0.25

608/808 9.53 4.50 1.44 2.998■-■2.999 0.75 0.25

610/810 9.66 4.50 1.56 3.248■-■3.249 0.75 0.25

612/812 10.28 5.00 1.69 3.623■-■3.624 0.75 0.25

3.5

608/808 10.19

4.625 4.19

4.50 1.50

0.25 11.00 7.91 6.50

2.998■-■2.999 0.75 0.25

610/810 10.31 4.50 1.63 3.248■-■3.249 0.75 0.25

612/812 10.94 5.00 1.75 3.623■-■3.624 0.75 0.25

614/814 11.06 5.00 1.88 4.270■-■4.2485 1.00 0.38

610/810 10.88

5.375 4.75

4.50 1.63

0.25 12.50 9.25 7.50

3.248■-■3.249 0.75 0.25

612/812 11.50 5.00 1.75 3.623■-■3.624 0.75 0.25

614/814 11.63 5.00 1.88 4.2470■-■4.2485 1.00 0.38

616/816 12.25 5.50 2.00 4.6220■-■4.6235 1.25 0.38

618/818 12.31 6.00 1.56 4.9970■-■4.9985 1.25 0.50

4.5

614/814 12.25

6.000 5.31

5.00 1.94

0.31 13.63 10.38 8.50

4.2470■-■4.2485 1.00 0.38

616/816 12.88 5.50 2.06 4.6220■-■4.6235 1.25 0.38

618/818 12.94 6.00 1.63 4.9970■-■4.9985 1.25 0.50

614/814 12.97

6.500 6.03

5.00 1.94

0.31 15.31 11.56 9.50

4.2470■-■4.2485 1.00 0.38

616/816 13.59 5.50 2.06 4.6220■-■4.6235 1.25 0.38

618/818 13.66 6.00 1.63 4.9970■-■4.9985 1.25 0.50

620 14.84 6.75 2.06 5.8720■-■5.8735 1.50 0.75

5.5

616/816 14.47

7.500 6.91

5.50 2.06

0.31 16.75 12.72 10.50

4.6220■-■4.6235 1.25 0.38

618/818 14.53 6.00 1.63 4.9970■-■4.9985 1.25 0.50

620 15.72 6.75 2.06 5.8720■-■5.8735 1.50 0.75

622 16.84 7.25 2.69 6.2470■-■6.2485 1.50 0.75

616/816 14.97

8.250 7.41

5.50 2.06

0.31 18.00 14.00 11.50

4.6220■-■4.6235 1.25 0.38

618/818 15.03 6.00 1.63 4.9970■-■4.9985 1.25 0.50

620 16.22 6.75 2.06 5.8720■-■5.8735 1.50 0.75

622 17.34 7.25 2.69 6.2470■-■6.2485 1.50 0.75

Notes:■■ n■■■*■indicates:■That■a■counterbore■is■required.

■n■■■Bore■taper■is■1-1⁄4■inch■per■foot■on■diameter.

■n■■■Exposed■Bolt■Design■is■standard.

■n■■■Shrouded■Bolt■Design■available■upon■request■for■sizes■1.5■through■5.5.

■n■■■Puller■Holes■are■standard■on■sizes■4■through■6.

■n■■■Puller■Holes■are■available■for■sizes■1.5■through■3.5■at■an■additional■charge.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Inch■bore■and■keyway■tolerances■conform■to■ANSI■/■AGMA■9002-B04.

■n■■■For■metric■bore■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

■n■■■1/4■inch■hub■standoff.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

164 630-852-0500

G-50

Gear

FSL Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FSL Type Slide Coupling

The■FSL■Type■coupling■consists■of■one■or■two■modiﬁed■ﬂex■hubs■depending■on■the■

maximum■slide■required,■two■sleeves,■one■plate■with■lube■holes■and■one■accessory■kit.■

The■coupling■is■supplied■with■exposed■bolts■as■standard.■Shrouded■bolts■are■available■

upon■request■through■size■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Assembled■to■suit■a■wide■range■of■axial■movement

■■Plates■with■lube■holes■so■both■halves■of■the■coupling■will■be■adequately■lubricated

FSL Type Performance Data

ID1 - ID2

Size

Nominal Maximum Max Bore Rough Stock Weight Max Angular

Torque Speed Bore Misalignment

Unbal Bal Degrees

in-lb Nm RPM RPM in mm in mm lbs kg

17,600 850 6,000 9,000 1.625 42 0.44 11 9 4

1.5 18,900 2■140 5,500 8,250 2.125 56 0.69 18 19 9

231,500 3■560 5,000 7,500 2.750 73 0.94 24 34 15 ■

2.5 56,700 6■410 4,400 6,600 3.250 85 1.44 37 54 25

394,500 10■700 4,000 6,000 4.000 107 1.44 37 80 36

3.5 151,200 17■100 3,500 5,250 4.625 125 1.81 46 130 59 1.5°

4220,500 24■900 3,000 4,500 5.375 145 2.44 62 190 86 Per■Gear■Mesh

4.5 302,400 34■200 2,700 4,050 6.000 165 3.00 76 250 114 ■

5434,700 49■100 2,500 3,750 6.500 180 3.00 76 380 173

5.5 573,300 64■800 2,200 3,300 7.500 200 4.00 101 520 236

6749,700 84■700 2,100 3,150 8.250 225 4.00 101 650 295

71,008,000 113■900 2,000 3,000 9.500 255 5.75 139 950 431

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(maximum-minimum■shaft■separation).

■■Shaft■sizes.

■■Amount■of■slide■required.

JWJISCJSFMC

HPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

165

www.lovejoy-inc.com G-51

Gear

FSL Type

Dimensional Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FSL Type Slide Couplings

FSL Type Dimensional Data

OAL OAL1 L1 L2 ID1 - ID2 LTB LTB1 AP1G FD D HD

One Hub Two Hubs Std Slide Max Bore Rough Stock Std Slide Max Min

Reversed Reversed Hub Half Bore Hub Hub

Size in in in in in mm in mm in in in in in in in

13.81 4.13 1.75 2.06 1.625 42 0.44 11 1.59 1.50 0.41 0.31 4.56 3.06 2.31

1.5 4.25 4.50 2.00 2.25 2.125 56 0.69 18 1.84 1.75 0.34 0.31 6.00 3.97 3.00

25.69 6.38 2.50 3.19 2.750 73 0.94 24 2.34 2.25 0.78 0.31 7.00 4.86 4.00

2.5 7.03 7.81 3.13 3.91 3.250 85 1.44 37 2.94 2.78 0.94 0.38 8.38 5.84 4.63

38.03 8.69 3.69 4.34 4.000 107 1.44 37 3.50 3.13 1.03 0.38 9.44 6.84 5.63

3.5 9.19 9.75 4.31 4.88 4.625 125 1.81 46 4.09 3.59 1.06 0.44 11.00 7.91 6.50

410.44 11.13 4.88 5.56 5.375 145 2.44 62 4.56 3.94 1.31 0.63 12.50 9.25 7.50

4.5 12.00 13.06 5.47 6.53 6.000 165 3.00 76 5.13 4.50 1.69 0.69 13.63 10.38 8.50

513.72 15.06 6.19 7.53 6.500 180 3.00 76 5.84 5.22 1.97 0.69 15.31 11.56 9.50

5.5 15.34 16.56 7.06 8.28 7.500 200 4.00 101 6.72 5.88 2.06 0.69 16.75 12.72 10.50

616.53 17.94 7.56 8.97 8.250 225 4.00 101 7.16 7.09 1.47 0.81 18.00 14.00 11.50

719.06 20.38 8.88 10.19 9.500 255 5.75 139 8.38 7.78 1.91 1.00 20.75 15.75 13.00

1 Hub Reversed

And Modiﬁed

2 Hubs Reversed

And Modiﬁed

Shrouded Bolt Design

Also Available

Notes:■■ n■■■1■indicates:■AP■Max■=■Maximum■slide■per■coupling■half.

■n■■■Exposed■Bolt■Design■is■standard.

■n■■■Shrouded■Bolt■Design■available■upon■request■for■sizes■1■through■5.5.

■n■■■Puller■Holes■are■standard■on■sizes■4■through■9.

■n■■■Puller■Holes■are■available■for■sizes■1■through■3.5■at■an■additional■charge.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Inch■bore■and■keyway■tolerances■conform■to■AGMA■9002-B04.

■n■■■For■metric■bore■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

166 630-852-0500

G-52

Gear

FSLX Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FSLX Type Long Slide Couplings

The■FSLX■Type■basic■coupling■consists■of■a■standard■ﬂex■half■and■a■custom■

designed■long■slide■half.■The■standard■ﬂex■half■can■be■replaced■by■a■reversed■and■

modiﬁed■hub■for■additional■slide■requirement.■These■couplings■are■also■supplied■with■

a■plate■with■lube■holes.■The■coupling■is■supplied■with■exposed■bolts■as■standard.■

Shrouded■bolts■available■upon■request■through■size■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Assembled■to■suit■a■wide■range■of■axial■movement

■■Plates■with■lube■holes■so■both■halves■of■the■coupling■will■be■adequately■lubricated

FSLX Type Performance Data

ID1 - ID2

Size

Nominal Maximum Max Bore Rough Stock Weight Max Angular

Torque Speed Bore Misalignment

Unbal Bal Degrees

in-lb Nm RPM RPM in mm in mm lbs kg

1.5 18,900 2■140 5,500 8,250 2.125 56 0.69 18 19 9

231,500 3■560 5,000 7,500 2.750 73 0.94 24 34 15 ■

2.5 56,700 6■410 4,400 6,600 3.250 85 1.44 37 54 25

394,500 10■700 4,000 6,000 4.000 107 1.44 37 80 36

3.5 151,200 17■100 3,500 5,250 4.625 125 1.81 46 130 59 1.5°

4220,500 24■900 3,000 4,500 5.375 145 2.44 62 190 86 Per■Gear■Mesh

4.5 302,400 34■200 2,700 4,050 6.000 165 3.00 76 250 114 ■

5434,700 49■100 2,500 3,750 6.500 180 3.00 76 380 173

5.5 573,300 64■800 2,200 3,300 7.500 200 4.00 101 520 236

6749,700 84■700 2,100 3,150 8.250 225 4.00 101 650 295

71,008,000 113■900 2,000 3,000 9.500 255 5.75 139 950 431

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(maximum-minimum■shaft■separation).

■■Shaft■sizes.

■■Amount■of■slide■required.

■■HL■Dimension.

■■LTB2■Dimension.

JWJISCJSFMC

HPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

167

www.lovejoy-inc.com G-53

Gear

FSLX Type

Dimensional Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FSLX Type Long Slide Couplings

FSLX Type Dimensional Data

OAL L1 L2 ID1 - ID2 LTB LTB2 G AP1 AP2 AP3 HL FD D HD

Std Slide Max Bore Rough Std Slide Min Long Long Slide Long Slide

Hub Half Stock Hub Hub Slide w/one Hub Both Ends

Bore Max Reversed Max

Max

Size in in in in mm in mm in in in in in in in in in in

1.5 10.41 2.00 8.41 2.125 56 0.69 18 1.84 2.19 0.31 3.38 3.72 6.75 4.88 6.00 3.97 3.00

210.88 2.50 8.38 2.750 73 0.94 24 2.34 2.69 0.31 3.31 4.09 6.63 4.91 7.00 4.86 4.00

2.5 13.59 3.13 10.47 3.250 85 1.44 37 2.94 3.28 0.38 4.16 5.09 8.31 6.13 8.83 5.84 4.63

321.72 3.69 18.03 4.000 107 1.44 37 3.50 3.84 0.38 7.78 8.81 15.56 10.06 9.44 6.84 5.63

3.5 22.38 4.31 18.06 4.625 125 1.81 46 4.09 4.44 0.44 7.66 8.72 15.31 10.19 11.00 7.91 6.50

423.00 4.88 18.13 5.375 145 2.44 62 4.56 5.00 0.63 7.50 8.81 15.00 10.31 12.50 9.25 7.50

4.5 23.75 5.47 18.28 6.000 165 3.00 76 5.13 5.56 0.69 7.38 9.06 14.75 10.56 13.63 10.38 8.50

524.16 6.19 17.97 6.500 180 3.00 76 5.84 6.28 0.69 7.06 9.03 14.13 10.56 15.31 11.56 9.50

5.5 25.09 7.06 18.03 7.500 200 4.00 101 6.72 6.88 0.69 6.81 8.88 13.63 10.88 16.75 12.72 10.50

625.66 7.56 18.09 8.250 225 4.00 101 7.16 7.66 0.81 6.81 8.28 13.63 10.88 18.00 14.00 11.50

727.06 8.88 18.19 9.500 255 5.75 139 8.38 8.94 1.00 6.81 8.72 13.63 10.88 20.75 15.75 13.00

Long Slide Half Standard Half Alternate Type hub shaft

contact is deep inside hub

One Hub reversed with

long slide half

Notes:■■ n■■■■Exposed■Bolt■Design■is■standard.

■n■■■Shrouded■Bolt■Design■available■upon■request■for■sizes■1■through■5.5.

■n■■■Puller■Holes■are■standard■on■sizes■4■through■9.

■n■■■Puller■Holes■are■available■for■sizes■1■through■3.5■at■an■additional■charge.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Inch■bore■and■keyway■tolerances■conform■to■AGMA■9002-B04.

■n■■■For■metric■bore■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

168 630-852-0500

G-54

Gear

FSPCR Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FSPCR Type Spacer Couplings

The■FSPCR■Type■coupling■consists■of■two■ﬂex■hubs,■two■sleeves,■one■spacer■and■two■

accessory■kits.■This■coupling■is■supplied■with■exposed■bolts■as■standard.■Shrouded■bolts■are■

available■upon■request■through■size■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Provides■parallel,■angular■misalignment■and■end■ﬂoat

■■Removal■of■spacer■provides■adequate■space■for■the■removal■of■either■coupling■half■

without■moving■the■driver■or■driven■units

Note:■■ n■■1■indicates:■Maximum■RPM■of■spacer■set■determined■by■critical■speed■of■spacer.

FSPCR Type Performance Data

ID1 - ID2

Size

Nominal Maximum Max Bore Rough Stock Weight Max Angular

Torque Speed1Bore Less Misalignment

Unbal Bal Spacer Degrees

in-lb Nm RPM RPM in mm in mm lbs kg

17,600 850 6,000 9,000 1.625 42 0.44 11 9 4

1.5 18,900 2■140 5,500 8,250 2.125 56 0.69 18 19 9

231,500 3■560 5,000 7,500 2.750 73 0.94 24 34 15 ■

2.5 56,700 6■410 4,400 6,600 3.250 85 1.44 37 54 25

394,500 10■700 4,000 6,000 4.000 107 1.44 37 80 36

3.5 151,200 17■100 3,500 5,250 4.625 125 1.81 46 130 59 1.5°

4220,500 24■900 3,000 4,500 5.375 145 2.44 62 190 86 Per■Gear■Mesh

4.5 302,400 34■200 2,700 4,050 6.000 165 3.00 76 250 114 ■

5434,700 49■100 2,500 3,750 6.500 180 3.00 76 380 173

5.5 573,300 64■800 2,200 3,300 7.500 200 4.00 101 520 236

6749,700 84■700 2,100 3,150 8.250 225 4.00 101 650 295

71,008,000 113■900 2,000 3,000 9.500 255 5.00 127 950 431

Ordering Information

■■Application:■Driver■and■Driven.

■■Type■and■size■of■coupling,■horizontal,■vertical■etc.

■■Power:■Motor■horspower■or■torque■requirement.

■■Speed:■Motor■RPM■or■Driven■RPM.

■■Distance■between■shaft■ends■(BSE).

■■Shaft■sizes.

JWJISCJSFMC

HPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

169

www.lovejoy-inc.com G-55

Gear

FSPCR Type

Dimensional Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FSPCR Type Spacer Couplings

FSPCR Type Dimensional Data

OAL S AD ID1 - ID2 LTB BSE G FD D HD D1 D2

Max Bore Rough Stock

Bore

Size in in in in mm in mm in in in in in in in in

1■ ■ ■2.04 1.625 42 0.44 11 1.69 ■ 0.06 4.56 3.06 2.31 3.00 2.41

1.5 Determined 2.32 2.125 56 0.69 18 1.94 Determined 0.06 6.00 3.97 3.00 3.75 3.13

2by 2.94 2.750 73 0.94 24 2.44 by 0.06 7.00 4.86 4.00 4.75 4.00

2.5 ■Shaft■ 3.47 3.250 85 1.44 37 3.03 Customer■ 0.09 8.38 5.84 4.63 5.50 4.78

3■Separation 3.97 4.000 107 1.44 37 3.59 Specs 0.09 9.44 6.84 5.63 6.50 5.75

3.5 ■ ■ 4.57■ 4.625 125 1.81 46 4.19 ■ 0.13 11.00 7.91 6.50 7.38 6.63

4■ ■ 5.00■ 5.375 145 2.44 62 4.75 ■ 0.13 12.50 9.25 7.50 8.63 7.75

4.5 ■ ■ 5.50■ 6.000 165 3.00 76 5.31 ■ 0.16 13.63 10.38 8.50 9.38 8.50

5■ ■ 6.34■ 6.500 180 3.00 76 6.03 ■ 0.16 15.31 11.56 9.50 10.38 9.56

5.5 ■ ■ 7.04■ 7.500 200 4.00 101 6.91 ■ 0.16 16.75 12.72 10.50 11.44 10.56

6■ ■ 8.35■ 8.250 225 4.00 101 7.41 ■ 0.16 18.00 14.00 11.50 12.38 11.44

7■ ■ 9.82■ 9.500 255 5.00 127 8.69 ■ 0.19 20.75 15.75 13.00 14.00 13.00

Shrouded bolt design also

available

Notes:■■ n■■■■Exposed■Bolt■Design■is■standard.

■n■■■Shrouded■Bolt■Design■available■upon■request■for■sizes■1■through■5.5.

■n■■■Puller■Holes■are■standard■on■sizes■4■through■9.

■n■■■Puller■Holes■are■available■for■sizes■1■through■3.5■at■an■additional■charge.

■n■■■Interference■bores■with■no■set■screws■are■standard■unless■otherwise■speciﬁed.

■n■■■Inch■bore■and■keyway■tolerances■conform■to■AGMA■9002-B04.

■n■■■For■metric■bore■and■keyway■tolerances,■consult■Lovejoy■Engineering■Section.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC

HP GD D T SP UJ VSD R SLD ED

170 630-852-0500

G-56

Gear

FLEF Type

Performance Data

Lovejoy / Sier-Bath Flanged Sleeve Gear Couplings

FLEF Type Limited End Float Couplings

The■FLEF■Type■coupling■consists■of■two■ﬂex■hubs,■two■sleeves,■one■accessory■kit■and■a■

steel■plate■to■limit■the■movement.■This■coupling■is■supplied■with■exposed■bolts■as■standard.■

Shrouded■bolts■are■available■upon■request■through■size■5.5.

Features

■■Patented■Vari-Crown®■tooth■form■for■long■life

■■Standard■20°■pressure■angle

■■Heat■treated■bolts■for■greater■strength

■■Corrosion■resistant■bolts■and■nuts■for■ease■of■maintenance

■■Provides■and■maintains■restriced■end■ﬂoat■in■sleeve■bearings■and■rotor■systems■where■

thrust■is■not■permitted

■■Optional■ﬂow-through■steel■plate■with■lube■holes■available

FLEF Type Performance Data

ID1 - ID2

Size

Nominal Maximum Max Bore Rough Stock Weight Parallel Max Angular

Torque Speed Bore Misalignment Misalignment

Unbal Bal Degrees

in-lb Nm RPM RPM in mm in mm lbs kg in mm

17,600 850 6,000 9,000 1.625 42 0.44 11 9 4 0.056 1.4