belt pulleys
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Belt pulleysTRANSCRIPT
Belt Drives & BearingsReference Guide
Product Information Installation Preventative Maintenance Troubleshooting
The First Name in Performance HVAC Belt Drives and Bearing Products
Customer Service — U.S. and InternationalPhone 866 869 2075Fax 606 564 2052
Customer Service — CanadaPhone 800 305 6953 905 948 3411Fax 800 262 3292
Application EngineeringPhone 800 626 2093
www.emerson-ept.comMCC10005Form #8932Printed in U.S.
3V3/8” x 5/16”
5V5/8” x 17/32”
8V1” x 29/32”
“A” Belts1/2” x 5/16”
“B” Belts21/32” x 7/16”
“C” Belts7/8” x 17/32”
3L3/8”
4L1/2”
5L21/32”
V-BeltsUnique design enhances performance and provides increased HP capacity in shorter center drives.
APPLICATION CONSIDERATIONS
The proper selection and application of power transmission products and components, including the related area of product safety, is the responsibility of the customer. Operating and performance requirements and potential associated issues will vary appreciably depending upon the use and application of such products and components. The scope of the technical and application information included in this publication is necessarily limited. Unusual operating environments and conditions, lubrication requirements, loading supports, and other factors can materially affect the application and operating results of the products and components and the customer should carefully review its requirements. Any technical advice or review furnished by Emerson Power Transmission Corporation and its divisions with respect to the use of products and components is given in good faith and without charge, and Emerson assumes no obligation or liability for the advice given, or results obtained, all such advice and review being given and accepted at customer’s risk.
For a copy of our Standard Terms and Conditions of Sale, Disclaimers of Warranty, Limitation of Liability and Remedy, please contact Emerson Power Transmission Customer Service at 1-866-869-2075. These terms and conditions of sale, disclaimers and limitations of liability apply to any person who may buy, acquire or use an Emerson Power Transmission Corporation product referred to herein, including any person who buys from a licensed distributor of these branded products.
358
CLASSICAL
FHP
Browning, B5V, Emerson, Emerson Industrial Automation, Gearbelt, Gripbelt and Gripnotch are trademarks of Emerson Electric Co. or one of its affiliated companies. ©2006, 2010 Emerson Power Transmission, All Rights Reserved. MCC10005 • Form 8932 • Printed in USA
1
V-Belt Drives and Bearings
Electronic Tools for the HVAC Industry • eCatalog • SmartInterchange • EmersonPowerTransmissionEdge
product selection
Index Page
Save the Green............................................................. 2 - 3
Belts ............................................................................ 4 - 76
Sheaves .................................................................... 77 - 98
Split Taper Bushing ...........................................................99
Bearings ............................................................... 100 - 117
Visit our online resources ...............................................118
2
Energy Responsibility In Three Easy Steps
Upgrade from wrapped to notched belts and improve efficiency.
Worn sheaves allow belt slip. Inspect sheaves for wear. Wear greater than 1/32” can decrease efficiency 5% or more.
Properly tension belts.
1
2
3
3
New Belt Drive Efficiency Calculator *Patent Pending at www.emerson-ept.com
Check out our new video “Save the Green – Energy responsibility in three easy steps” at www.emerson-ept.com or visit us on You Tube at channel “ThePowerTransmission”
“A single 100HP belt driven application that
drops from 98% to 95% in efficiency costs
$1422.00 annually in added electricity.”
(Based on $0.12/kWh, 18hrs/7
day wk usage at 75% load)
7.5 HP $111.92
10 HP $148.79
30 HP $430.9340 HP $576.11
50 HP $717.7160 HP $860.16
75 HP $1,081.17100 HP $1,422.00
125 HP $1,777.93
150 HP $2,125.78
5 HP $77.253 HP $45.75
2 HP $32.44
25 HP $362.2520 HP $294.27
$23.571.5 HP
1 HP $16.820.75 HP $13.060.5 HP $9.46
Upgrade from wrapped to notched belts and improve efficiency
It’s free. Download the Browning® Energy Efficiency Calculator for your iPhone, Droid or Blackberry. Search “Browning vbelts”
4
Belts&SheavesTechnology Leadership to Meet Drive Requirements with Shorter Center Distance and Higher Speeds
“358” Gripbelt®
SuperGripbelt®
Variable PitchCast Iron Sheaves
VPVariableSpeedSheavesEngineered Features
• Externalribdesignprovides cooling for longer belt life • Increaseswallthicknessby30% • Increasedhubdiameterby20% • Tightertolerancesby25% • Balancedascomponents • Twicebalancedafterassembly • LargerMVP®sheavesdynamically balancedintwoplanes • Tightenedmicro-finishongroove wallsforincreasedbeltlife
• Nowaccommodates5VXbeltsBrowning® Brand V-BeltsEngineered Features • Specialblendoffiberglassand polyesterforbeltcordflexibility and strength • Lengthtolerances10Xtighter thanindustrystandard • Singlebeltfabricwithno overlap for reduced vibration • Tubularwovenfabricfor lengthwiseflexibilityandcross rigidity • GroundformedgesonAX,BX, 3VXand5VXbeltsforreduced vibration
EmersonPowerTransmissionEdge® —youronlinesupportfor V-Drive and bearing selection.Edgeonlinetoolsinclude:eCatalog,productselection,CADtemplates,SmartInterchange,productliteratureandengineeredsolutions.Availableatwww.emerson-ept.com.
5
Index Page
V-BeltAdvantages&Construction ............................... 6 - 7
Section1-PreventiveMaintenanceand .................... 8 - 14Installation of V-Belt Drives
Section2-CorrectiveMaintenanceand .................. 15 - 59Troubleshooting of V-Belt Drives
A - TroubleshootingInstallationProblems ............ 18 - 24 B - TroubleshootingSelectionProblems .............. 25 - 28 C - TroubleshootingEnvironmentalProblems ...... 29 - 32 D -TroubleshootingDesignProblems .................. 33 - 37 E - Design and Installation Suggestions .............. 38 - 41 F - Gripbelt® Drive Engineering Data ................... 42 - 59
Belts
Super Gripbelt® Belts ........................................... 62 - 65 Gripnotch™ Belts ................................................. 66 - 69 FHP Belts ............................................................. 70 - 73 358 Gripbelts ............................................................... 74 Belts Cross Reference ......................................... 75 - 76
Sheaves
AKSheaves .......................................................... 78 - 79 2AKSheaves ........................................................ 80 - 81 AKHSheaves .............................................................. 82 2AKHSheaves ............................................................ 83 BKSheaves .......................................................... 84 - 85 2BKSheaves ............................................................... 86 BKHSheaves .............................................................. 87 2BKHSheaves ............................................................ 88 StockSheaveInterchange .......................................... 89 B5V® Sheaves ...................................................... 90 - 93 1VP Sheaves ........................................................ 94 - 95 2VP Sheaves ........................................................ 96 - 97 VL,VMSheaves ........................................................... 98
Split Taper Bushings ........................................................ 99Visit our online resources .............................................. 118
6
V-Belt Drive Advantages
V-beltdrivesprovidemanymaintenanceadvantagesthathelpinyourdailystruggletoreduceequipmentrepairsandtoholdforceddowntimetothelowestpossiblelevel.
1. They are rugged–they will give years of trouble-freeperformancewhengivenjustreasonableattention...evenunder adverse conditions.
2. Theyareclean–requirenolubrication.
3. Theyareefficient–performingwithanaverageof94-98%efficiency.
4. Theyaresmoothstartingandrunning.
5. Theycoverextremelywidehorsepowerranges.
6. They permit a wide range of driven speeds, usingstandardelectricmotors.
7. They dampen vibration between driving and drivenmachines.
8. Theyarequiet.
9. Theyactasa“safetyfuse”inthepowerdrivebecausetheyrefusetotransmitasevereoverloadofpower,exceptforaverybrieftime.
10. V-belts and sheaves weargradually–makingpreventivecorrectivemaintenancesimpleandeasy.
7
V-Belt Construction
Before we talk about “Avoiding Problems” and “Solving Problems” let’s takeabrief lookathowV-beltsareconstructed.There are basically two types of construction. One has afabricwrapper (or jacket)surrounding it; theother–usuallyratedhigherinhorsepower–ismadeinarawedged,coggedconstruction.
GripBelt® Gripnotch™Belt
GripBelt®
1. SingleFabricDesign • Moreflexible-use
withsubminimalpitchdiameters.
• Reducedoverlap-reduces vibration
2. ImprovedCordAdhesion
3. Improvedflexibilitycords
4. ImprovedSBRcompounds
Gripnotch™ V-Belts
1. GroundForm • Reducesvibration,
increases belt and bearing life.
2. FabricTopandBottom • Increasesrigidityand
stability.Reducesstressonthecordline,increasesbelt life.
3. WiderNotchSpacing • Increasesrigidityand
stability.Reducesstresson the cord line increases belt life.
Unique design enhances performance providesincreasedHPcapacityinshortercenterdrives.
8
PreventiveMaintenanceandInstallationofV-Belt Drives
Youwillnoticereferencekeynumbers (suchasA-1)appearthroughoutthissection.TheserefertoamoredetaileddiscussionwithillustrationsrelatingtothesubjectinSection2(CorrectiveMaintenanceandTroubleshooting).
Section1
• Readandfollowallinstructionscarefully.• Disconnectandlock-outpowerbeforeinstallationandmaintenance.
Workingonornearenergizedequipmentcanresultinsevereinjuryordeath.
• Donotoperateequipmentwithoutguardsinplace.Exposedequipmentcanresultinsevereinjuryordeath.
• Periodicinspectionsshouldbeperformed.Failuretoperformpropermaintenancecanresultinprematureproductfailureandpersonalinjury.
9
1.SafetyFirstBeforedoinganymaintenanceworkonpowerdrives,besurethe controllingswitch is in the off position–and locked ifpossible.Followyourplant’ssafetyrules.
3.RemoveBeltGuardA-1Clean and inspect belt guard thoroughly.Afterremovingthedriveguard,loosenthedrivetake-upandmovethesheavesclosertogethertofacilitatetheremovalofanyoldbelts,andtoensureinstallationofthenewbeltswithoutdamage.
PreventiveMaintenanceandInstallationofV-Belt Drives
Section1
2.SelectReplacementBeltsB-1, B-2, B-3, B-4AfteryouhavemadeanynecessarycorrectionsinyourV-beltdriveelements,thenextstepistheselectionofthecorrectreplacementbelts.
WhenreplacingsetsofV-belts,herearesomeveryimportantreminders:
• Nevermixnewandusedbeltsonadrive.
• Nevermixbeltsfrommorethanonemanufacturer.
• AlwaysreplacewiththerighttypeofV-belt.
• AlwaysobserveV-beltmatchinglimits.
10
PreventiveMaintenanceandInstallationofV-Belt Drives
Section1
4.InspectDriveElements A-1, A-6This is a good time to service thetake-up rails by removing any rust,debris,ordirt.Lubricatethebearingsas necessary so tensioning of thenewbeltswillgosmoothlyandeasily.Thisisalsoanexcellentopportunitytoinspectandreplacefaultyordamagedmachine elements such as wornbearings and bent shafts.
These maintenance procedures notonly reduce the likelihood of futuremechanical trouble, but also ensuremaximumservicefromthenewbelts.
11
PreventiveMaintenanceandInstallationofV-Belt Drives
Section1
5.InspectSheavesA-4, A-9 SheaveconditionandalignmentarevitaltoV-beltlifeandperformance.NewV-beltsshouldneverbeinstalledwithoutacarefulandthoroughinspectionofthesheavesinvolved.
Particular attention should be given to these conditions. Replacesheavesifworn:
a.Worngroovesidewallsb.Shinysheavegroovebottomc.Wobblingsheavesd.Damagedsheaves
Sheavesshouldbecarefullycleanedofanyrustandforeignmaterial.Awirebrushfollowedupbywipingwithashopclothwillusuallydothejob.
ShinySheaveGrooveBottom
WobblingSheaves
WornGrooveSidewalls
DamagedSheaves
Groove Gage
12
PreventiveMaintenanceandInstallationofV-Belt Drives
Section1
7.InstallingNewBeltsA-1 Placethenewbeltsonthesheaves,andbesurethattheslackofeachbeltisonthesameside.Youcandothisbypressingthebeltswithyourhandtobringtheslackononesideofthedrive.Looseningthedrivetake-upinadvancemakesthiseasy.
6.CheckSheaveAlignmentA-3OneofthegreatadvantagesofV-beltdrivesisthefactthatperfectalignmentofsheavesisnotcriticaltotheoperationofthedrive.However,thebetterthealignment,thebettertheperformance.
Refer to Section 2, A-3, for information on proper alignmentprocedures and tolerances.
Note:Sheavesshouldalwaysbemountedasclosetothebearingsaspracticaltoavoidexcessiveloadsonbearingsandshafts.
Do not force the belts on the sheaves byusingaprybarorbyrollingthesheaves.Movesheavesapartuntilthe belts are seated in the grooves. Tightendriveuntilslackistakenup.(TensioningsuggestionsfollowinStep8).
13
PreventiveMaintenanceandInstallationofV-Belt Drives
8.ApplyTensionA-7, A-8All V-belt drives must operateunder proper tension to produce the wedging action of the beltagainstthegroovesidewall.Awell-established rule of thumb is thatthe best tension for a V-belt drive istheLEASTtensionatwhichthedrivewillnotslipunderpeakload.Browningrecommendsusingabelttensioncheckertoproperlytensionbelts.
Section1
9.RecheckSheaveAlignmentA-3Anytimesheaveshavemoved,rechecksheavealignment.
Refer to Section 2, A-3, for information on proper alignmentprocedures and tolerances.
10.ReplaceGuardStartdrive.(Lookandlisten)Checktensionafter8,24and100hoursandperiodicallythereafter.
11.StartDriveA-7ProperlydesignedV-beltdrivesshouldnotsquealunderpeakloadconditions.Ifnecessary,stopthedrive,thenstartitagain.Ifasquealisheard,thebeltsshouldbetightenedtothepointwheretheydonotsquealunderpeakload.Newlyinstalledbeltsrequireabout24hourstobecomefullyseatedinthegroove.
Re-tensionafter3minutes,8hours,24hours,100hours,andperiodicallythereafter.
14
PreventiveMaintenanceandInstallationofV-Belt Drives
V-BeltInstallationCheckList
1. TurnoffandlockoutpowersourceObserveallothersafetyprocedures
2. Selectproperreplacementbelts
3. Removebeltguard
4. Inspectdriveelements–bearings, shaft,etc.
5. Inspectsheavegroovesforwear
6. Checksheavealignment
7. Installnewbelts
8. Tension belts
9. Checksheavealignment(final)
10. Replace guard
11. Startdrive(look&listen)
Section1
15
CorrectiveMaintenanceandTroubleshootingofV-BeltDrives
ThefirstsectionofthisHVACPocketReferenceGuideoutlinedastep-by-stepprocedurefortheinstallationofreplacementV-beltstohelpyoupreventV-beltmaintenanceproblems.
The reason behind these steps is alsofundamentalinthedailyinspection and maintenance ofV-belt drives. Watching and listeningwillalertyoutowarningsignsoftrouble,sinceoneofthe greatest advantages of V-belt drives is the fact that belts and sheaves weargradually.Youcanspotpotentialproblemsintimetoarrangeshort,scheduledmaintenancedowntimeinsteadofexperiencing a longer, costly interruption of production whenunexpectedtroubleoccurs.
YoucancompareV-beltstoanelectricalfuse–theirunexpectedfailure is usually a signal that something else in the systemis wrong. Even their patterns of gradual wear often indicateconditionsneedingcorrectionsorimprovements.
Section2
• Readandfollowallinstructionscarefully.• Disconnectandlock-outpowerbeforeinstallationandmaintenance.
Workingonornearenergizedequipmentcanresultinsevereinjuryordeath.
• Donotoperateequipmentwithoutguardsinplace.Exposedequipmentcanresultinsevereinjuryordeath.
• Periodicinspectionsshouldbeperformed.Failuretoperformpropermaintenancecanresultinprematureproductfailureandpersonalinjury.
16
CorrectiveMaintenanceandTroubleshootingofV-BeltDrives
CAUSES
SYMPTOMS
Section2
Indicatesmostcommoncauses
BeltsPriedOnorMisplacedSlack
BeltsRubbingGuard
SheavesMisalligned
WornorDam
agedSheaves
SheavesTooFarFromBearing
RapidSidewallWear
WornCoveronBack
BellTurnsOverOrJumpsOffSheave
BeltSoft,SwollenBeltSlips,Squeals(SpinBurn)
BeltCoverSplit
UndersideCracked
Tie-BandDamaged
RepeatedBreakage
BeltsRideTooHighBeltsBottoming
RepeatedTake-upNecesssary
BeltsVibrateExcessivelyorAppearMismatched
BearingAreHot
ShaftsWhiporBend
CrackedBushings
SheaveWobble
CURES A-1
A-2
A-3
A-4
A-5
17
CorrectiveMaintenanceandTroubleshootingofV-BeltDrives
Section2PoorB
earingorShaftCondition
InsufficientTension
ExcessiveTension
ImproperSheaveInstallation
BeltsW
orn(NormalServiceLife)
WrongBeltC
ross-SectionorType
MismatchedBeltsorM
ixedBrands
Machine-In
ducesImpulseorShock
ImproperorP
rolongedStorage
Excessiveheat
ExcessiveOilorGrease
UseofB
eltD
ressing
AbrasiveEnvironm
ent
ForeignObjectsinGrooves
ExcessiveMoisture
OverloadedDriveUnderbelting
DriveSerioulsyOverbelted
SheavesTooSmall
InsufficientW
raponSmallS
heave
BacksideIdler
A-6
A-7
A-8
A-9
B-1
B-2
B-3
B-4
C-1
C-2
C-3
C-4
C-5
C-6
C-7
D-1
D-2
D-3
D-4
D-5
18
TroubleshootingInstallationProblems
AspointedoutinSection1ofthismanual,preventivemaintenanceby using proper installation techniques is important for long,trouble-free V-belt service.
Occasionally, however, you will find it necessary to correctproblemscausedbyimproperinstallation.Thissectiondealswiththeseproblemsandtroubleshootingprocedures.
Section2A
• Readandfollowallinstructionscarefully.• Disconnectandlock-outpowerbeforeinstallationandmaintenance.
Workingonornearenergizedequipmentcanresultinsevereinjuryordeath.
• Donotoperateequipmentwithoutguardsinplace.Exposedequipmentcanresultinsevereinjuryordeath.
• Periodicinspectionsshouldbeperformed.Failuretoperformpropermaintenancecanresultinprematureproductfailureandpersonalinjury.
19
TroubleshootingInstallationProblems
A-1PryingorforcingV-beltsontothesheavescan,andusuallydoes,breaksomeoftheload-carryingtensilecords(seeillustrationonpage10,SectionA-1).Whenthishappens,thebeltmayeitherbreakorturnoverinthegroove,usuallywithinthefirstfewminutesofoperation.Thismethodofinstallationmaybeevidencedbyaruptureorsplitinthewrappedcoverofthebelt,causedbythepryingtoolor sheave edge. Brokencordsareeasilyidentifiableonraw-edgeV-beltsbecauseitisusuallythe edge cords that breakfirst.
Misplaced slack can also cause belt breakage, againusuallyonstartup.Thisoccursonmultiple-beltdriveswhenallofthebeltslackisnotbroughtto thesamesideof thedrivebefore tensioning. If somebelts are tight on one side,and others are tight on the other side, the heavy shockload of starting will be bornebyonlysomeofthebelts,thusweakening or breaking theload-carryingcords.
A-2 Belts rubbing againstthe metal guard or other obstruction will be evidencedby cut or worn fabric on theback or upper edge of theV-belt. Often just replacingmissingboltsinguardbracketswillremedythissituation.
Section2A
FabricWornonBackside
RupturedCover
20
TroubleshootingInstallationProblems
A-3MisalignedsheavescancauserapidwearoftheV-beltsidewalls,considerablyshorteningservice life of both belts and sheaves.Misalignmentcanalsocause separation of the tie-band onbandedbelts,orapparentmismatchingofindividualbelts.V-beltsheavealignmentshouldbewithinatolerance of 1/2°onnotchedbeltsand±2°onwrappedbelts.
Thethreebasictypesofsheaveandshaftmisalignmentareshownbelow.Suggestedmethodsforcheckingandcorrectingeachtypearefoundonpage 19.
Note:Allthreetypesmaybepresentatthesametime.Alignmentshouldbecheckedandcorrectedintheordergiven.
SidewallWear
HorizontalAngular
VerticalAngular
Parallel
Section2A
21
TroubleshootingInstallationProblems
1.HorizontalAngular(shaftsinsamehorizontalplanebutnotparallel)
ToCheck: Use straightedge or string near sheave centers. ToCorrect: Loosenmotormountingboltsandrotatemotor
until all four points touch straightedge.
2.VerticalAngular(shaftsnotinthesameplaneandnotparallel)
ToCheck: Placestraightedgeabout1/4radiusfromtheoutsidediameterofbothsheavesasshown.Repeatonopposite side of shaft 2. Straightedge should touch four points indicated in each position.
ToCorrect: Useshimsundermotorbaseinfrontorrearofmotor,dependingontypeofcorrectionrequired.
3.Parallel (shaftsareparallel;sheavesnotinline) ToCheck: Use straightedge or string near sheave centers. ToCorrect: Loosensheavesoitslideseasilyonshaft
until all four points touch straightedge. Retighten sheave in position.Important:Sheaveshouldbemountedascloseto bearing as possible to reduce overhung load on bearing. Relocateequipmentifnecessary.
Section2A
22
A-4Wornordamagedsheavesare an even greater cause of rapidbeltwear,slippageandvibration.Badlywornsheavescancauseover-tensioningofthedrivetopreventslippage,indirectlycausingover-heatedbearingsandshaftdamage.Ifpiecesofthesheaveflangearemissing,itwillresultinbadlywornsidewallsofthebelt,andtheresultingsheaveimbalancecandamagebearingsandcreateasafetyhazard.Whenonlysomeofthegroovesarewornmorethanothers,theeffectisthatthebeltsappear to be mismatched.Italsocauses“differentialdriving,”whereonlysomeofthebeltsarecarryingtheentireloadofthedrive.
Inthecaseofbandedbelts,worngroovescausethebeltstoridetoolowinthegrooves,thuscausingthetie-bandtowearagainstthesheaveflangesbetweenthegrooves.Inseverecases,thiscanhavethesameeffectasacircularblade,cuttingthebandand separating the belts.
Sheavetemplatesareavailablefromyourdistributor,whichcanbeusedtocheckgroovesaccuratelyforwear.Aflashlightheldbehindthetemplatewhenplacedinthegroovewillhelpyoutoobservetheamountofwear.“Dishing”shouldnotexceed1/32"
WornSidewalls Cut Tie-Band
ProperPositionofBeltinSheave
BottomingandDishingofBeltinSheave
Section2A
TroubleshootingInstallationProblems
23
SpinBurn
Section2A
forindividualsheavesidewalls.Ashinygroovebottomisasignthat thebeltorsheave,orbotharebadlywornandthebelt isbottominginthegroove.Wornsheavesorshinysheavegroovebottomswillshowupfirstonthesmallersheave.
ThecostofreplacingawornsheavewillbemorethanrecoveredinlongerV-beltlife,reducedmaintenanceanddowntime.
A-5 Sheaves mounted too far from the bearing cause excessiveoverhung loadonthebearingandoverheating.Thiscanalsocauseshaftingtowhip,bendorbreak.Sheavesshouldbemountedascloseaspossible to thebearing. If thisaffectsalignmentseverely,itmaybenecessarytorelocatetheequipmenttostaywithinalignmentlimitsof1/16"per12"ofshaftcenter-to-center distance.
A-6 Bearing condition andnormalwearmaywellbethecauseofoverheating,ratherthanbelttension.Theyshouldbeinspectedforproperlubricationandwearaccordingtothespecificationsofthebearingorequipmentmanufacturer.Shaftcondition should alsobecheckedandreplacedifnecessary,asbentshaftscanbedetrimentaltobearings,beltsandsheaves,aswellasbeingasafetyhazardduetotheimbalancecreated.Sheave“wobble”maybecausedbybentshafts.
A-7 Insufficientbelt tension it's the leading cause of V-belt slippageandprematurebelt failure.This isoftenevidencedby“spinburn”.TheeasiestandmostpracticalwayformaintenancepersonneltojudgeproperbelttensionisbyuseofaBrowningbelttensionchecker.
TroubleshootingInstallationProblems
24
TroubleshootingInstallationProblems
Section2A
A-8 Excessive tension onV-beltscanbeevenmoredetrimentalthantoolittletension,affectingnotonlythebelts,butalsobearingsandshafts.Again,thebestruleistoapplyonlyenoughtensiononthebeltstokeepthemfromslippingduringstartuporpeakloading.Someindicatorsofexcessivetensioning(butnotalways)are:
•Repeatedbeltbreakage •Overheatedbearings•Excessivevibration •Whippingorbentshafts
A-9Impropersheaveandbushinginstallation can resultinsheave“wobble”aswellascausingsheavehubstocrack.Wheninstallingsplit-taperedbushingsalwaysfollowmanufacturer’sinstructions.
Itisimportanttonever lubricate the tapered surfaces before installing.Thelubricationwillpermitrecommendedtorquewrenchvaluestoincreasetheactualforceonthebushingandhub.Thisusuallyresultsincrackingofthehubattheboltholeorkeyway.
Onflangedbushingtypes,properinstallationshouldresultinagapbetweenthebushingflangeandthehubface.Theabsenceofagapmayindicateaproblem.Whenremovingsplit-taperedbushings,startatthejack-screwholeoppositethesplittoavoidcrackingthebushing.
CrackedBushing
25
TroubleshootingSelectionProblems
Section2B
ThearrayofV-belttypes,cross-sectionsandlengthsonthemarkettodayareallpartoftechnologicaleffortstoprovidemoreefficient,cost-savinganswerstoyourdriverequirements.
Thiscategory is intendedtopointouthowyoucanbesureofapplyingthebestV-belttypetoyourapplications.
• Readandfollowallinstructionscarefully.• Disconnectandlock-outpowerbeforeinstallationandmaintenance.
Workingonornearenergizedequipmentcanresultinsevereinjuryordeath.
• Donotoperateequipmentwithoutguardsinplace.Exposedequipmentcanresultinsevereinjuryordeath.
• Periodicinspectionsshouldbeperformed.Failuretoperformpropermaintenancecanresultinprematureproductfailureandpersonalinjury.
26
TroubleshootingSelectionProblems
Section2B
B-1WornV-belts mayhavegottenthatwaysimplybecausetheyhavedeliveredtheservicelifebuiltintothem.Browning,strivestodesignV-beltswitha“balanced”construction,soeachelementofthebeltwilllastaslongasallotherelements.Butthewidevarietyofindustrialapplications,environmentalconditionsandmaintenancepracticesmakesthisimpossibletoachieve.However,theexpectedlifeofanindustrialV-beltonaproperlydesignedandmaintaineddriveisthreetofiveyears.
B-2UsingthewrongV-beltcross-sectionortype can create problemsforyou...andit’snothardtodo,sincemanybeltshavesimilardimensions.Forexample,thefollowingV-beltshaveapproximatelythesametopwidth(5/8")andlength(85"outsidecircumference).
Andyet,thehorsepowerratingsofthesebeltsrangefromaslittleas2.2HPperbelttoasmuchas11.9HPperbeltona5"diametersheaveanda1750RPMmotor!
27
TroubleshootingSelectionProblems
Section2B
B-3 Mismatched belts or mixed brands from differentmanufacturersshould not be matched together, and will not delivertheexpectedservicelife.
Althoughallmanufacturersusesimilarbeltnumberingsystems,different brands with the same number will differ slightly indimensionsandarenotcapableofbeingmixedinaset.Also,construction differences cause them to ride differently in thegrooves,andtostretchdifferently.
Itshouldbenotedthatthemajorityofcomplaintsregardingbeltmatchingaredue toother causes, suchasmisalignmentandsheavewear.These factorsshouldalwaysbechecked ifbeltsseemtobemismatched.
B-4Machine-inducedvibrationorshockloads frequentlycancauseV-beltstowhiporevenjumpoffthedrive,creatingasafetyhazard,andofcourse,damagingthebelts.
Onmultiple-beltdrives,thiswhippingcanbereducedoreliminatedbyusingbandedV-belts.AbandedV-beltconsistsoffromtwotofiveindividualV-beltsjoinedtogetherwithabonded,reinforcedtie-band(seeillustration).
Thesebeltsrideslightlyhigherinthesheavegroovestoprovideclearancebetweenthebandandthesheaveflange.Becauseofthis,sheavegroovesshouldnotbewornor“dished-out”morethan1/64".Also,becausethebeltsarebandedtogether,alignmentofthe sheaves is morecritical.
(The chart on the next page will behelpful in selecting thebestbelt foranapplication.)
28
Section2B
V-BeltSelectionGuide
No
tes:
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orm
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heav
em
ater
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.
TroubleshootingSelectionProblemsG
ener
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elt T
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(Cro
ss S
ectio
ns)
Nor
mal
H
P R
ange
max
imum
B
elt S
peed
(F
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)
Nor
mal
Tem
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Ran
ge (°
F)O
il/H
eat
Res
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Stat
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Dis
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Gen
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App
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SuperGripbelt®
(A,B
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)1-500
6,500
-35
40Good
✓General-PurposeHeavy
DutyIndustrialD
rives
Gripnotch™
Multiple(A
X,B
X,C
X)
1-500
6,500
-35
140
Excellent
✓LongerLife,H
ighEfficiency,
SmallD
iameters
358Gripbelts
(3V,5V,8V)
1-1000
6,500
-35
140
Very
Good
✓High-Pe
rformance,C
ompact
IndustrialDrives,LongC.D.
358Gripnotch
(3VX,5VX)
1-600
6,500
-35
140
Excellent
✓High-Pe
rformance,C
ompact
IndustrialDrives,ShortC.D.
Double-VBelts
(AA,B
B,CC,D
D)
1-200
6,500
-35
140
Good
Special
Order
SerpentineDrives
FHP
(2L,3L,4L,5L)
Light
Duty
6,500
-35
140
Fair
Special
Order
LightD
utyDrivesUsinga
SingleBelt
29
TroubleshootingEnvironmentalProblems
Section2C
“Environmental Protection” can be as important for aV-beltas for humans.This section deals with the effect of adverseenvironmentalconditionsonV-beltsandhowyoucanminimizethese effects.
• Readandfollowallinstructionscarefully.• Disconnectandlock-outpowerbeforeinstallationandmaintenance.
Workingonornearenergizedequipmentcanresultinsevereinjuryordeath.
• Donotoperateequipmentwithoutguardsinplace.Exposedequipmentcanresultinsevereinjuryordeath.
• Periodicinspectionsshouldbeperformed.Failuretoperformpropermaintenancecanresultinprematureproductfailureandpersonalinjury.
30
TroubleshootingEnvironmentalProblems
Section2C
C-1Improperorprolongedstoragecan reduce service lifeconsiderably.V-beltsshouldbestoredinacool,dryplacewithnodirectsunlight.Onshelves,inboxesorpiles,thestackshouldbesmallenoughtoavoidexcessweightanddistortiononthebottombelts.Onpegs,thelongerbeltsshouldbecoiledinloopsofsuitablesizetopreventdistortionfromtheweightofthe belt.
ThefollowingguideprovidedbytheRMAshouldbefollowedforoptimumconditions:
GuidetoMaximumNumberofCoilingsofV-BeltsofStorage
The pegs should be crescent shaped in cross-section to avoid compressionsetdentsinthebeltsfromsharpcornersandthepegsshouldbesufficientlylargeincross-sectiontoavoidcompressionsettingtosharpbendsresultingfromtheweightofthe hanging belts.
Itisrecognizedthatbeltsaresometimescoiledinsmallerloopsthanindicatedintheabovetable,forpackagingforshipment,butsuchpackagingshouldnotbeforprolongedstorage.
*Onecoilingresultsinthreeloops;twocoilingsresultinfiveloops,etc.**”AA”and“BB”areknowas“doubleangle”or“hexagonal”V-belts.
Belt Cross Section
Belt Length (Inches)
Number of Coilings*
Number of Loops*
A,AA,“”3VandB
Under60.060.0to120.0120.0to180.0180.0andup
None123
1357
BB,“”C,and5V
Under75.075.0to144.0144.0to240.0240.0andup
None123
1357
D
Under120.0120.0to240.0240.0to330.0330.0to420.0420.0andup
None1234
13579
Eand8V
Under180.0180.0to270.0270.0to390.0390.0to480.0480.0andup
None1234
13579
31
TroubleshootingEnvironmentalProblems
Section2C
C-2 Excessive heat. Standard construction V-belts are compounded for moderate heat resistance and should giveadequateserviceundernormalconditions.
Belttemperature(notambientorsurroundingairtemperature)isthedeterminingfactorwhenheatisasuspectedcauseofshortbelt life.
AsageneralruleservicelifeofaV-belt iscut inhalfforevery35°Fraiseinbelttemperatureabove85°F.
Evidenceofheatmaybetheappearanceofsmallcracksontheunderside of the belt.
Whattodoaboutexcessiveheat:1.Checkforslippage(seekeynumberA-7)2.Ventilatethedriveorshieldfromheatsource3.Checktomakesuretheproperbeltsizeisinstalled4.Checkthehorsepowercapacityofthedrive
C-3 Excessive oil orgrease.Standard construction V-belts arecompoundedformoderategreaseandoilresistance.However,anexcessiveamountcancausesoftening,swellinganddeteriorationoftherubbercompounds,aswellasslippage.
Whattodoaboutoilorgrease:1.Whenthereisoccasionalexposurefromspillageorleakage,
thebeltsandsheavegroovesshouldbecleanedwithamixtureofdetergentandwater–afterthedrivehasbeenturnedoffandlockedoutandthecauseoftheleakagecorrected.
2.Whenbeltscannotbeprotectedfromoil,speciallycompoundedoil-resistantV-beltsshouldbeused.
HeatCracks
32
C-4Never applyso-called“beltdressings” to V-belts. These compoundsareusuallymadefromapetroleumderivativeandcanhave a destructive effect on rubber compoundsandothercomponentsofthebelt.Ifbeltsslip,checkforadequatetensionand/orwornsheavegrooves(seeA-4,A-7).
C-5Abrasiveconditions fromsand,dustorgritcanacceleratewearofbothbeltsandsheaves.Thisisespeciallytruewhenslippageispresent. Belt selection can be an importantfactor.Experiencehasshownthatraw-edgeconstructionsreducethiswearbecausetheyreducethe“sandpaper-effect”causedbyslippage.Driveshouldbewell-shieldedagainstexcessiveabrasiveparticlesasmuchaspossible.
C-6Foreignobjects, suchaswoodchips,cancreatehavocwithV-beltdrives.Beltbreakageandturnoverarethemostcommonsymptoms.Shieldingthedriveisanecessity.Beltguardswithexpandedmetalscreeningareoftenused,butventilationissome-timessacrificed,possiblyrequiringadditional induced cooling. Banding belts are often effective,sincetheyeliminatebeltturn-over.
C-7Excessivemoisture can penetrate the fabric covering of aV-belt,causingdeterioration.Inaddition,alargeamountofwatercanreducefrictionandcauseslippage.Beltdrivesshouldbeprotectedasmuchaspossiblewhenusedoutsideorwhensubjecttosprayfromwashdownhoses,etc.Belttensionshouldbeinspectedregularly.
TroubleshootingEnvironmentalProblems
Section2C
AbrasiveWear
33
TroubleshootingDesignProblems
Section2D
Whennormalcorrectivemeasures,aspresentedintheprevioussections,donotseemtoproducethedesiredresults,aninherentdesignproblemmaybetheculprit.ThesolutionstothesearebestleftuptotheBrowningApplicationEngineeringDepartmentoraCertifiedDriveSpecialist.However,thediscussionpresentedin this section will help identify symptoms caused by designproblems.
• Readandfollowallinstructionscarefully.• Disconnectandlock-outpowerbeforeinstallationandmaintenance.
Workingonornearenergizedequipmentcanresultinsevereinjuryordeath.
• Donotoperateequipmentwithoutguardsinplace.Exposedequipmentcanresultinsevereinjuryordeath.
• Periodicinspectionsshouldbeperformed.Failuretoperformpropermaintenancecanresultinprematureproductfailureandpersonalinjury.
34
TroubleshootingDesignProblems
Section2D
D-1Underbeltingadrive, (usingfewerbeltsthanrecommendedbygooddesignpractice)resultsinexcessivetension in each belt on the drive.
Thisiscommonlyevidencedbyexcessivestretchingwhichrequiresfrequenttake-upstopreventslippage.Anotherwarningsigncanberepeatedbeltbreakage.
Inmanycases,underbeltingcanbecorrectedsimplybyusingrawedge,coggedV-beltswhichhaveahigherhorsepowerrating.Whentheseareused,drivesshouldbeidentifiedtoassurethatfuturereplacementsaremadewiththistypeofbelt.(Drivelabelsareavailableforthispurpose.)
D-2Driveoverbelting,whileusuallyresultinginlongerV-beltlife,canbejustasseriousasunderbelting.Thesymptomsmostcommonlyfoundare overheated bearings and bent shafts.Thisisespeciallytrueifbelttensioningdevicesareusedwithoutregard to design factors.
Thesedevices,calledtension-checkers,arequitehelpfulindeterminimgproperbelttension,buttensionvaluestakenfrompublishedtablesdonotapplytoalldrives.Therefore,whenthesedevicesareusedthedeflectionforcevaluesshouldbecalculated,ratherthantakenfromsuchtables.ContactBrowningApplicationEngineering,800-626-2093,forpropertensioningvalues.
Tensioningdevicesmeasuretheindividualbelttensions;so,whentoomanybeltsareonthedrive,thetotal tension can be excessivewhen“table”valuesareused.Ontheotherhand,whentoofewbeltsareonthedrive,tensionvaluesfromthesetablesmaybeinadequate.
Mostdesignhandbookscontaintheformulasandproceduresformakingthesesimplecalculations.
Anothernot-so-commonsymptomisbeltvibration,resultingfromtensionharmonics.Sinceinducedvibrationcanbecausedbyseveralfactors,thisshouldbereferredtoBrowningApplicationEngineering.
35
TroubleshootingDesignProblems
Section2D
D-3Whensheavesaretoosmallforthebeltcross-section,thebeltflexesbeyonditsnormallimits.Thisisusuallyevidencedbycracksontheundersideofthebelt.TableAindicatestheminimumrecommendedsheavediameterforflexingeachbeltcross-section.Inmostcases,useofaraw-edgecoggedbeltwillimproveservicelifegreatly,duetoitsgreaterflexibility.
TableA.MinimumRecommendedSheaveandIdlerDiameters.
*Note:BacksideidlersaredetrimentaltoV-beltservicelife.
Another problem caused by sheaves that are too small isoverheating of motor bearings, or even bent shafts. NEMApublishesminimumrecommendedsheavediametersforusewithelectricmotorstoavoidexcessivebearingloads.TableBshowstheseminimumsforthemostcommonmotortypes.
D-4 Insufficient wrap on the small sheave can requireexcessivebelt tension topreventslippage.Thisconditionmayrequireredesign,eitherusingmorebelts,increasingthecenterdistanceorusingabacksideidlerwithlongerbelts.ThisisagainamatterforBrowningApplicationEngineering.
V-Belt Cross Section
Minimum P.D. Sheave or Inside Idler
Minimum 0.D. Flat Backside Idler*
A 3.0 4.5B 5.0 7.5C 9.0 13.5D 13.0 19.5E 21.0 31.5AX 2.6 4.0BX 4.0 6.0CX 7.0 10.53V 2.6 -5V 7.0 -5VX 4.3 -8V 12.4 -8VX 11.2 -
36
TroubleshootingDesignProblems
Section2D
TableB.ApplicationofV-BeltSheaveDimensionstoGeneral-PurposeMotors
*NEMAStandard,MG1-14.42
FrameNo.
Integral-Horsepower Motors - Polyphase Induction
V-Belt Sheave (Inches)ConventionalA, B, C, D, & E Minimum Pitch
Diameter, Inches
Narrow 3V, 5V & 8V Minimum Outside
Diameter, Inches
Horsepower at Synchronous Speed, Rpm
3600 1800 1200 900143T145T182T182T184T184T184T213T215T215T254T254T256T256T284T284T286T324T326T364T364T365T365T404T404T404T405T405T405T444T444T444T444T445T445T445T445T
11/22-335-5
71/271/2-10
10151520
20-25------------------------
111/2-2
3---5
71/2-10-15-20-25304050-60-75--
100-
100125--
125150--
150200
3/41
11/2-2--35-
71/2-10-15-20253040-50-60--75--
100---
125---
1/23/41-
11/2--23-5-
71/2-10-15-202530-40--50-60---75---
100--
2.22.42.42.62.42.63.03.03.03.83.84.44.44.64.65.05.46.06.86.87.48.29.09.09.010.010.010.011.511.010.511.0-
12.510.5--
2.22.42.42.42.42.43.03.03.03.83.84.44.44.44.44.45.26.06.86.87.48.28.68.08.48.610.08.610.510.09.59.510.512.012.010.513.2
37
D-5BacksideidlerscancreateproblemsbecausetheycauseV-beltstobendoppositetothewaytheyweredesigned.Caremustbetakentoseethatabacksideidlerislargeenoughindiametertoreduceharmfulstresses,whichoftencausecracksontheundersideofthebelt.TableA(underD-3)alsoshowstheseminimumrecommendeddiameters.
TroubleshootingDesignProblems
Section2D
38
DesignandInstallationSuggestions
Browning® Gripbelt® "V" Drives are primarily intended for thetransmissionofpowerwithrelativelyhighspeeddrivingunits.Theiracceptancebyindustrycoversabroadfieldofapplicationsincludinginstallationsonawidevarietyofdifferent typesofequipment,includingspeedincreasingdrives,V-flatdrives,quarter-turndrives,multipleshaftdrivesandconveyors.Manysuchapplicationsareregularlybeingdesignedandinstalledusingstockparts.
Regardlessofwhetherdrivesconsistofstockorspecialitemstherearecertainprimaryconditionstoconsiderwithrespecttothedesignofsatisfactorydrives.Thosemostcommonlyencounteredare:
1. Drivesshouldalwaysbeinstalledwithprovisionforcenterdistanceadjustment.Thisisessential,becauseanadjustmentisnecessaryafterthebelthassetandseatedproperlyinthegrooveofthesheave.Ifcentersmustbefixed,idlersshouldbe used.
2. Ifpossible,centersshouldnotexceed3timesthesumofthesheavediametersnorbelessthanthediameterofthelarge sheave.
3. Ifpossible,thearcofcontactofthebeltonthesmallersheaveshould not be less than 120°.
4. Beltspeedswithcastironsheavescannotexceed6500feetperminute.Anothertypeofdriveisusuallymoredesirableforspeedsunder1000feetperminute.
5. Specialordynamicbalancemayneedconsiderationforbeltsspeedsexceeding5000feetperminute.
6. Full considerationandallowance foroverloadcapacity indrivesincreasesbeltlifeandimprovesoperation.StudytheOverloadServiceFactorsinthissectioncarefully.
7. Severe temperature can have a major effect on belt life.There should be a full and free circulation of air around the drive.Alldrivesoperatinginexplosiveatmospheresshouldbewellgroundedandusestaticconductingbelts.
Watchthesepointsparticularlywheninstallingdrives:
Section2E
39
DesignandInstallationSuggestions
1. Be sure that shafts are parallel and sheaves are in proper alignment.Checkaftereighthoursofoperation.
2. Do not drive sheaves on or off shafts. Be sure shaft and keywayaresmoothand thatboreandkeyareof correctsize.Removeburrsbydressinglightlywithfinishingfile.Wipeshaft,keyandborecleanwithoil.Tightenscrewscarefully.Recheckandre-tightenaftereighthoursofoperation.
3. Beltsshouldneverbeforcedoversheaves.Morebeltsarebrokenfromthiscausethanfromactualfailureinservice.SeeTableNo.1and1Aonpage38and39.
4. Inmountingbelts,besurethattheslackineachandeverybeltisonthesamesideofthedrive.Thisshouldbetheslackside of the drive.
5. Belt tension should be reasonable. When in operation the tightsideofbeltsshouldbeinastraightlinefromsheavetosheaveandwithaslightbowontheslackside.Checkbelttensionaftereighthoursofoperation.Alldrivesshouldbeinspectedperiodicallytobesurebeltsareunderpropertension and not slipping.
Formoredetailedtensioninginstructionsandaninexpensivetensionchecker,seepage54.
6. Donotinstallnewsetsofbeltsindriveswherethesheaveshaveworngrooves.Suchsheavesshouldbereplacedwithnewsheavestoinsureaproperfitofthebeltsinthegrooves,thuseliminationpossibilityofprematurebeltfailure.
7. Keepbeltsclean.Donotusebeltdressing.
8. Whenmakingreplacementofbeltsonadrive,besuretoreplacetheentiresetwithanewsetofmatchedbelts.Failuretodothiswillprobablyresultinprematurebreakageofnew(andprobablyshorter)beltsmixedwitholdones.
9. Keepextrabeltsstoredinacool,dark,dryplace.
Caution – Install guards according to local and nationalcodes.
Section2E
40
DesignandInstallationSuggestions
MinimumCenterDistanceAllowanceforBeltInstallionandTake-Up
TableNo.1
Section2E
BeltNo.AllowanceforInstallation
AllowanceforInitialTensioningandSubsequent
Take-Up
A B C D AllSections
26-3538-5560-8590-112120-144158-180195-210
240220-300330-390
420andover
0.80.80.811––––––
1.01.01.31.31.31.31.51.51.5––
–1.51.51.51.52.02.02.02.02.02.3
––––2.02.02.02.52.52.53.0
1.01.52.02.53.03.54.04.55.06.0
11/2%ofBeltLength
41
DesignandInstallationSuggestions
MinimumCenterDistanceAllowanceforBeltInstallionandTake-Up
TableNo.1A
Section2E
BeltNo.AllowanceforInstallation
AllowanceforInitialTensioningandSubsequent
Take-Up3V 5V 8V All Sections
250-475500-710750-10601120-12501320-17001800-20002120-2240
23602500-26502800-3000
31503350-3550
37504000-5000
5600
.5
.8
.8
.8
.8––––––––––
–1.01.01.01.01.01.21.21.21.21.21.5–––
––1.51.51.51.81.81.81.81.81.82.02.02.02.0
1.01.21.51.82.22.52.83.03.23.54.04.04.55.56.0
42
Bas
icD
rive
Sel
ecti
on
Pro
ced
ure
Sel
ectio
nsa
reb
ased
on
hors
epow
erra
tings
fors
ingl
ebe
ltan
dar
eno
tcor
rect
edfo
rarc
ofc
onta
ct,b
eltl
engt
hor
ratio
.S
elec
tions
bas
edo
na
1.0
serv
ice
fact
or.D
rive
calc
ulat
ions
bas
edo
nm
otor
ors
mal
lers
heav
eop
erat
ing
at1
750
RP
M.
App
licat
ion
char
acte
ristic
s:L
ow
ho
rsep
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•F
ors
ingl
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low
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wer
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licat
ion
(und
er3
HP
)
•Id
ealf
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nap
plic
atio
ns
FH
P(
Fra
ctio
nal
Ho
rsep
ow
er)V
-bel
ts
Gripbelt® Drive Engineering Data
*B
elow
RM
Am
inim
umr
ecom
men
ded
pitc
hdi
amet
er.
Not
e:F
ors
peed
sno
tsho
wn
onth
isp
age,
use
tabl
eso
npa
ges
108-
109.
Driv
esm
ustb
eco
rrec
ted
for
loss
ina
rco
fcon
tact
.
Section2F
Bel
t Typ
e 3
L Pi
tch
Dia
. 1.25*
1.5
1.75
2.0
2.5
3.0
3.5
4.0
4.5
5.0
--
HP
Rat
ing
0.09
0.15
0.23
0.29
0.43
0.55
0.61
0.67
0.73
0.78
Bel
t Typ
e4L
Pi
tch
Dia
. 1.25*
1.5*
2.0*
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-H
P R
atin
g 0.09
0.14
0.29
0.60
0.88
1.17
1.37
1.49
1.61
1.70
1.78
Bel
t Typ
e 5L
Pi
tch
Dia
. 2.2*
2.5*
3.0*
3.4
3.9
4.4
4.9
5.4
5.9
6.4
6.9
7.4
HP
Rat
ing
0.36
0.45
0.71
1.07
1.52
1.95
2.26
2.39
2.50
2.59
2.68
2.71
43
Bas
icD
rive
Sel
ecti
on
Pro
ced
ure
Sel
ectio
nsa
reb
ased
on
hors
epow
erra
tings
fors
ingl
ebe
ltan
dar
eno
tcor
rect
edfo
rarc
ofc
onta
ct,b
eltl
engt
hor
ratio
.S
elec
tions
bas
edo
na
1.0
serv
ice
fact
or.D
rive
calc
ulat
ions
bas
edo
nm
otor
ors
mal
lers
heav
eop
erat
ing
at1
750
RP
M.
App
licat
ion
char
acte
ristic
s:M
ediu
mh
ors
epo
wer
•
For
indu
stria
lapp
licat
ions
req
uirin
gsi
ngle
or
mul
tiple
V-b
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rives
•
Tran
smits
mor
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and
has
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fee
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HP
V-b
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•
Sui
ted
for
"clu
tchi
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appl
icat
ions
.A
, B a
nd
C T
ype
V-B
elts
Gripbelt® Drive Engineering Data
*B
elow
RM
Am
inim
umr
ecom
men
ded
pitc
hdi
amet
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Not
e:F
ors
peed
sno
tsho
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onth
isp
age,
use
tabl
eso
npa
ges
108-
109.
Driv
esm
ustb
eco
rrec
ted
for
loss
ina
rco
fcon
tact
.
Section2F
Bel
t Ty
pe
A
Pitc
h D
ia.
2.00*
0.90
2.20*
1.17
2.60*
1.69
3.00
2.23
3.40
2.95
3.70
3.40
4.00
4.00
4.40
4.69
4.70
5.20
5.00
5.96
5.40
6.35
5.70
6.83
6.00
7.30
6.40
7.91
7.00
8.81
8.00
10.22
HP
Rat
ing
Bel
t Ty
pe
B
Pitc
h D
ia.
3.00
1.58
3.30*
2.47
3.80*
3.34
4.20*
4.19
4.60*
5.10
5.00*
6.16
5.40
7.21
5.80
8.22
6.20
9.22
6.60
10.19
7.00
11.13
7.40
12.06
8.00
13.39
8.60
14.66
9.00
15.48
9.40
16.27
HP
Rat
ing
B
elt
Type
C
Pitc
h D
ia.
5.60
6.94
7.00*
12.09
7.40*
13.62
7.80*
15.11
8.20*
16.56
8.60*
17.96
9.00
19.32
9.40
20.62
9.80
21.88
10.20
23.09
11.00
25.35
12.00
27.86
14.00
31.76
--
- H
P R
atin
g
44
App
licat
ion
char
acte
ristic
s:M
ediu
m/H
igh
ho
rsep
ow
er
•F
orin
dust
riala
pplic
atio
nsr
equi
ring
sing
leo
rm
ultip
leV
-bel
tdriv
es
•R
awe
dge,
cog
ged
•
Tran
smits
mor
eho
rsep
ower
than
com
para
ble
A,B
,and
Cb
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•
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sign
pro
vide
sm
ore
aggr
essi
veg
rippi
ngw
ithle
ssb
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lippa
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ogge
dco
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driv
esh
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and
run
coo
ler
than
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-cog
ged
belts
•
Not
for
use
on(
clut
chin
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pplic
atio
nsb
ecau
seo
fagg
ress
ive
grip
AX
, BX
an
d C
X T
ype
V-B
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Bas
icD
rive
Sel
ecti
on
Pro
ced
ure
Sel
ectio
nsa
reb
ased
on
hors
epow
erra
tings
fors
ingl
ebe
ltan
dar
eno
tcor
rect
edfo
rarc
ofc
onta
ct,b
eltl
engt
hor
ratio
.S
elec
tions
bas
edo
na
1.0
serv
ice
fact
or.D
rive
calc
ulat
ions
bas
edo
nm
otor
ors
mal
lers
heav
eop
erat
ing
at1
750
RP
M.
Gripbelt® Drive Engineering Data
*B
elow
RM
Am
inim
umr
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men
ded
pitc
hdi
amet
er.
Not
e:F
ors
peed
sno
tsho
wn
onth
isp
age,
use
tabl
eso
npa
ges
108-
109.
Driv
esm
ustb
eco
rrec
ted
for
loss
ina
rco
fcon
tact
.
Section2F
Bel
t Ty
pe
AX
Pitc
h D
ia.
2.00*
1.24
2.20
1.58
2.60
2.25
3.00
2.90
3.40
3.53
3.70
3.99
4.00
4.46
4.70
5.67
5.00
6.18
5.40
6.84
5.70
7.34
6.00
7.82
6.40
8.45
7.00
9.39
8.00
10.88
-H
P R
atin
g
Bel
t Ty
pe
BX
Pitc
h D
ia.
3.00*
3.72
3.40*
4.62
3.80
5.50
4.20
6.36
4.60
7.19
5.00
8.08
5.40
9.19
5.80
10.27
6.20
11.34
6.60
12.39
7.00
13.41
7.40
14.42
8.00
15.89
8.60
17.32
9.00
18.23
9.40
19.13
HP
Rat
ing
Bel
t Ty
pe
CX
Pitc
h D
ia.
5.60*
14.10
7.00
18.35
7.40
19.49
7.80
20.60
8.20
21.66
8.60
23.14
9.00
24.61
9.40
26.05
9.80
27.44
10.20
28.79
11.00
31.37
12.00
34.32
14.00
39.31
--
-H
P R
atin
g
45
Bas
icD
rive
Sel
ecti
on
Pro
ced
ure
Sel
ectio
nsa
reb
ased
on
hors
epow
erra
tings
fors
ingl
ebe
ltan
dar
eno
tcor
rect
edfo
rarc
ofc
onta
ct,b
eltl
engt
hor
ratio
.S
elec
tions
bas
edo
na
1.0
serv
ice
fact
or.D
rive
calc
ulat
ions
bas
edo
nm
otor
ors
mal
lers
heav
eop
erat
ing
at1
750
RP
M.
Gripbelt® Drive Engineering DataA
pplic
atio
nch
arac
teris
tics:
Hig
hh
ors
epo
wer
•
For
indu
stria
lapp
licat
ions
req
uirin
gsi
ngle
or
mul
tiple
V-b
eltd
rives
•
Tran
smits
sub
stan
tially
mor
eho
rsep
ower
tha
nA
,A
X,
B,
BX
,C
and
CX
,w
hich
allo
ws
for
mor
eco
mpa
ct
driv
esy
stem
s(s
mal
ler
shea
veO
.D.a
nd/o
rfe
wer
gro
oves
)
•R
awe
dge,
cog
ged
3VX
an
d 5
VX
Typ
e V-
Bel
ts
*B
elow
RM
Am
inim
umr
ecom
men
ded
pitc
hdi
amet
er.
Not
e:F
ors
peed
sno
tsho
wn
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isp
age,
use
tabl
eso
npa
ges
108-
109.
Driv
esm
ustb
eco
rrec
ted
for
loss
ina
rco
fcon
tact
.
Section2F
Bel
t Ty
pe
3VX
Pitc
h D
ia.
2.15
1.37
2.30
1.63
2.45
1.89
2.60
2.15
2.95
2.75
3.10
3.01
3.30
3.34
3.60
3.85
4.45
5.25
4.70
5.65
4.95
6.05
5.25
6.53
5.95
7.63
6.85
9.01
7.95
10.64
10.55
14.22
HP
Rat
ing
Bel
t Ty
pe
5VX
Pitc
h D
ia.
4.30
8.23
4.55
9.40
4.80
10.55
5.10
11.93
5.40
13.30
5.70
14.66
5.90
15.56
6.20
16.89
6.50
18.22
6.70
19.10
7.00
20.41
7.40
22.13
7.90
24.26
8.40
26.35
9.10
29.23
9.50
30.84
HP
Rat
ing
46
Gripbelt® Drive Engineering Data
LoadandoperatingcharacteristicsofboththedrivinganddrivenunitsmustbeconsideredthoroughlyintheselectionofBrowningGripbelt Drives. It is essential that all drives be designed for maximumloadconditionstobeencountered.
Most drives will at some time be overloaded, perhaps onlymomentarily. It is good practice to have predetermined drivecapacitytohandlethisoverload.Thispredetermineddrivecapacityhelpsprotectagainstbreakdownsduetoprematurebeltfailure.Theuseofanextrabeltwillpay for itselfmany timesoverbyincreasing the lifeofall thebeltsmore than theproportionatecostoftheextrabelt.
Forgooddesignandsatisfactorydrivelifealldrivesmustbeselectedwithcarefulconsiderationtotwofundamentalconditions:
1. Themotormusthavegreatercapacitythanthedrivenunit.
2. Thedrivemusthavegreatercapacitythanthemotor.
AcarefulconsiderationofOverloadServiceFactorsforvarioustypes of driven units, drivers, type of starting, frequency ofmaintenanceandotherdriveconditionsisextremelyimportantforsatisfactoryperformanceandlife.
Thefollowingtablesonpage45aresuggestedOverloadServiceFactorsforvarioustypicaldrivenunits.
OverloadServiceFactors
DrivesrequiringhighOverloadServiceFactors,suchascrushingmachinery,certainreciprocating compressors, etc. subjected to heavy shock load without suitable flywheels,mayneedheavydutywebtypesheavesratherthanstandardarmtype.Foranysuchapplication,consultApplicationEngineering.
CAUTION!
Section2F
47
Gripbelt® Drive Engineering Data
SuggestedOverloadSericeFactorsfor Typical Applications
AminimumServiceFactorof2.0issuggestedforequipmentsubjecttochocking.
Servicefactorshouldbeincreasedby0.2ondriveunitswithaincreaserdrivespeedof2200RPMor lowerwhenusinga1750RPMmotor.This isaspeed-upratioof1.25or less.Forspeedincreaserdrivesorspeed-updrivesgreaterthan2200RPM,therecommendationisto use a 2.0 service factor.
Section2F
TYPESOFDRIVENMACHINES
DRIVINGUNITS2
ACMotors;HighTorque,HighSlip,Repulsion-Induction,SinglePhase,
SeriesWoundandSlipRing.DCMotors;SeriesWoundand
CompoundWound.SingleCylinderInternalCombustionEngines.
LineShafts.Clutches.
Intermittent(3-5HoursDailyorSeasonal)
Normal(8-10HoursDaily)
Continuous(16-24HoursDaily)
BlowersandExhaustersPumpsandCompressorsFansupto10HP
1.1 1.2 1.3
FansOver10HPPositiveDisplacementRotaryPumps
1.2 1.3 1.4
PositiveDisplacementBlowers 1.4 1.5 1.6
TYPESOFDRIVENMACHINES
DRIVINGUNITS1
ACMotors;NormalTorque,SquirrelCage,Synchronousand
SplitPhase.DCMotors;ShuntWound.Multiple
CylinderInternalCombustionEngines.
Intermittent(3-5HoursDailyorSeasonal)
Normal(8-10HoursDaily)
Continuous(16-24HoursDaily)
BlowersandExhaustersPumpsandCompressorsFansupto10HP
1.0 1.1 1.2
FansOver10HPPositiveDisplacementRotaryPumps
1.1 1.2 1.3
PositiveDisplacementBlowers 1.2 1.3 1.4
48
Gripbelt® Drive Engineering Data
DatumSystem
InDecember,1987,RMA/MPTAadoptedStandard IP20-1988.ThisstandardsupersedesIP20-1977andaffectedtheA,B,C,and D belts and sheaves. Those products in this catalog are in accordance with IP20-1988 which incorporates the DatumDiameterSystem.
TheDatumSystemspecifiestheDatumDiameterastheeffective diameter fordetermining thepitch lengthof thebelt forcenterdistance calculation. In this catalog,DatumDiameter (D.D.) isnowlistedfortheA,B,C,andDsheavesandisequaltotheoldPitchDiameter(P.D.)showninpreviouscatalogs.
Belt Velocity
Belt velocity is not needed for calculation of drives, as thehorsepowerratingsshownarebasedontheR.P.M.ofthesheave.Ifbeltvelocityisdesiredforanyreason,usetheformula:
BeltVelocityinFeetperMinute(FPM)=
D.D.orP.D.ofSheave×.2618×SpeedofSheave(RPM)
CastIronSheavesmustnotbeusedbeyond6500FPMbeltspeed.Sincethemajorityofstocksheavesaremadeofcastiron,welistnoratingsabove6500FPM.
Sometypesofbelts loseratingsbefore theyreach6500FPMand other types continue to increase beyond 6500 FPM.TheBasicRatingTablesandtheDriveSelectionTablesreflectthesevariations.
SpecialBalance
Functionally,speedsupto6500FPMareacceptable;however,onapplicationswherevibrationrequirementsarecritical,specialbalancing (usuallydynamic) forspeedsabove5000FPMmaybe considered. Factors to be considered for special balance requirements are: rigidity of drive mounting, whether noisecreatedbya level of vibrationwouldbeprohibitive,etc.Manydrivesareinservicerunningatspeedsupto6500FPMwithoutspecial balancing.
Section2F
49
Gripbelt® Drive Engineering DataCenterDistanceandBeltLength
Interpolation
Foreveryinchofbeltlengthdifferencethereisapproximately1/2inchcenterdistancechange.Allbeltnumbersreflectarelationifitispitchlength,outsidelengthorinsidelength.AnA26beltis2"longerthananA24belt;aB105beltis15"longerthanaB90belt;a3V335beltis8.5"longerthana3V250belt,etc.
Interpolationexample:
IfanA128beltgives50.0"C.D.andanA96gives34.0C.D.,thenanA112beltgives42.0C.D.
Ifa5V1200beltgives83.1"C.D.anda5V1600gives63.1C.D.,then a 5V1800 belt gives 73.1 C.D.
Centerdistanceandbeltlengthsdeterminedbyinterpolationareusuallycloseenoughasalldrivesshouldprovidefortake-upasindicatedonpages38and39.Ifclosercalculationisnecessaryforanyreasonusethefollowingformula:
(D–d)2
L= 2C+1.57(D+d)+ 4Cwhere: L = PitchLengthofBelt C = CenterDistance D = DatumorPitchDiameterofLargeSheave d = DatumorPitchDiameterofSmallSheave
Section2F
50
DrivenSpeedVariations
AllV-BeltDriveswillvaryslightlyfromthespeedsshownintheDriveSelectionTables.Thesevariationsareduetodifferentmotorspeedsdependingonload,changingfrequencies(onA.C.Motors)orvoltage(onD.C.Motors),varyingtensionsandresultingslip,and allowable manufacturing tolerances in belts and sheaves.Also,actualsheavepitchdiametersandactualbeltpitch lineshavebeenchangedslightlyovertheyearsbyallmanufacturesbutcatalogdatahasnotbeenchangedtoreflectthis.
In the few instances where very close speed tolerances arerequired,contactApplicationEngineeringforassistanceorusetheBrowningEdge SelectionProgram.
Speed-Up,Quarter-Turn,andV-FlatDrives
ThesedrivesoccurinfrequentlyandshouldbereferredtoBrowningfor special design considerations.
Gripbelt® Drive Engineering Data
Section2F
51
BeltSectionSelectionChartTableNo.1
Gripbelt® Drive Engineering Data
Section2F
HP Belt Section 1/2 A AX3/4 A AX1 A AX11/2 A AX2 A AX3 AX A BX5 BX AX B A71/2 BX B 5VX 3VX10 5VX,BX B 3VX AX15 5VX,BX B 3VX AX20 5VX BX B 3VX25 5VX BX B 3VX30 5VX BX B 3VX40 5VX,5V BX B50 5VX,5V BX B CX60 5VX,5V BX B CX75 5VX,5V CX BX C100 5VX,5V CX C125 5VX,5V CX C150 5VX,5V CX C200 5VX,5V CX250 5VX,5V CX
ThebestdrivewillusuallybefoundbyusingBeltSectionfromthefirstcol-umn.If,foranyreason,suchassheaveshortage,thisdriveisnotsuitable,gotothenextcolumn."AX"drivesarefoundinthe"A"DriveSelectionTables;"BX"inthe"B"Tables,etc.
52
Gripbelt® Drive Engineering Data
CorrectionFactorforBeltLengthLongerbeltshavegreaterhorsepowerratingsbecauseof lessfrequentflexurearoundsheaves.
MultiplyH.P.ratingsbyappropriatefactorfromtablebelowtogetthefinalcorrectedhorsepower.
Theinformationonthesetwopagesareincludedfortechnicalsupportinfiguringnon-standarddrives.
TableNo.1
Section2F
NominalLength A B C Nominal
Length A B C D E
26 .81 — — 90 1.06 1.00 .91 — —31 .84 — — 93 — 1.01 — — —32 .85 — — 96 1.08 1.02 .92 — —33 .86 — — 97 — 1.02 — — —34 .86 — — 99 — 1.02 — — —35 .87 .81 — 100 — 1.03 — — —36 .87 — — 103 — 1.03 — — —37 .88 — — 105 1.10 1.04 .94 — —38 .88 .83 — 108 — 1.04 — — —42 .90 .85 — 109 — — .94 — —43 .90 — — 110 1.11 — — — —46 .92 .87 — 112 1.11 1.05 .95 — —48 .93 .88 — 115 — — .96 — —50 — .89 — 116 — 1.06 — — —51 .94 .89 .80 120 1.13 1.07 .97 .86 —52 — .89 — 124 — 1.07 — .87 —53 .95 .90 — 128 1.14 1.08 .98 — —54 .95 .90 — 133 — 1.08 — — —55 .96 .90 — 136 1.15 1.09 .99 — —56 .96 .90 — 144 1.16 1.11 1.00 .90 .8858 .97 .91 — 150 — 1.12 1.01 — —59 — .91 — 158 1.17 1.13 1.02 .92 —60 .98 .92 .82 162 — 1.13 1.03 .92 —61 — .92 — 173 1.18 1.15 1.04 .93 —62 .99 .93 — 180 1.19 1.16 1.05 .94 .9163 — .93 — 195 — 1.18 1.07 .96 .9264 .99 .93 — 210 — 1.19 1.08 .96 .9465 — .94 — 225 — 1.20 1.09 .98 .9566 1.00 .94 — 240 — 1.22 1.11 1.00 .9667 — .94 — 255 — 1.23 1.12 1.01 —68 1.00 .95 .85 270 — 1.25 1.14 1.03 .9970 1.01 .95 — 285 — 1.26 1.15 1.04 —71 1.01 .95 — 300 — 1.27 1.16 1.05 1.0175 1.02 .97 .87 315 — 1.28 1.17 1.06 —77 — .98 — 330 — — 1.19 1.07 1.0378 1.03 .98 — 345 — — 1.20 1.08 —79 — .98 — 360 — 1.31 1.21 1.09 1.0580 1.04 .98 — 390 — — 1.23 1.11 1.0781 — .98 .89 420 — — 1.24 1.12 1.0982 — .99 — 480 — — — 1.16 1.1283 — .99 — 540 — — — 1.18 1.1485 1.05 .99 .90 600 — — — 1.20 1.1788 — 1.00 —
53
Gripbelt® Drive Engineering Data
MultiplyH.P.ratingsbyappropriatefactorfromtablebelowtogetthefinalcorrectedhorsepower.
CorrectionFactorforLossinArcofContactThelossofarcofcontactfrom180°fordifferentdrivescanbedeterminedinthefollowingmanner:
LossinArcofContact(indegrees)= (D-d)57 C
TheCorrectionFactorsforlossinarcofcontactindegreesare;
TableNo.2
Theinformationonthesetwopagesareincludedfortechnicalsupportinfiguringnon-standarddrives.
TableNo.3
Section2F
BeltLength
CrossSection BeltLength
CrossSection3V 5V 8V 3V 5V 8V
25.0 .83 — — 112.0 1.11 .98 .8826.5 .84 — — 118.0 1.12 .99 .8928.0 .85 — — 125.0 1.13 1.00 .9030.0 .86 — — 132.0 1.14 1.01 .9131.5 .87 — — 140.0 1.15 1.02 .9233.5 .88 — — 150.0 — 1.03 .9335.5 .89 — — 160.0 — 1.04 .9437.5 .91 — — 170.0 — 1.05 .9540.0 .92 — — 180.0 — 1.06 .9542.5 .93 — — 190.0 — 1.07 .9645.0 .94 — — 200.0 — 1.08 .9747.5 .95 — — 212.0 — 1.09 .9850.0 .96 .85 — 224.0 — 1.09 .9853.0 .97 .86 — 236.0 — 1.10 .995.0 .98 .87 — 250.0 — 1.11 1.0060.0 .99 .88 — 265.0 — 1.12 1.0163.0 1.00 .89 — 280.0 — 1.13 1.0267.0 1.01 .90 — 300.0 — 1.14 1.0371.0 1.02 .91 — 315.0 — 1.15 1.0375.0 1.03 .92 — 335.0 — 1.16 1.0480.0 1.04 .93 — 355.0 — 1.17 1.0585.0 1.06 .94 — 375.0 — — 1.0690.0 1.07 .95 — 400.0 — — 1.0795.0 1.08 .96 — 425.0 — — 1.08100.0 1.09 .96 .87 450.0 — — 1.09106.0 1.10 .97 .88
LossinArcCorrectionofContactFactor
LossinArcCorrectionofContactFactor
0°................................1.005°.................................9910°...............................9815°...............................9620°...............................9525°...............................9330°...............................9235°...............................9040°...............................8945°...............................87
50°...............................8655°...............................8460°...............................8365°...............................8170°...............................7975°...............................7680°...............................7485°...............................7190°...............................69
54
Gripbelt® Drive Engineering Data
TableNo.4
* TheminimumrecommendedpitchdiameterslistedaboveareRMAandMPTAStandardsrecommendations.Manysheaveswithdiameterssmallerthantheserecommendationsaremadeand used. If a rating for a “sub-minimum diameter” sheaveispublished in theselection tablesand thedrive isproperlyinstalled,itshouldgivethesametheoreticallifeasadriveusingsheavediametersequaltoorgreaterthantheminimumsshownabove.
Theinformationonthesetwopagesareincludedfortechnicalsupportinfiguringnon-standarddrives.
Section2F
BeltSelection
NominalBeltSize
AddtoP.D.togetO.D.
MinimumRecommendedPitchDiameter*
C D
A 1/2”x5/16” .25” 3.00” 3/8” 5/8”
B 21/32x13/32 .35 5.40 1/2 3/4
C 7/8x17/32 .40 9.00 11/16 1
D 11/4x3/4 .64 13.00 7/8 17/16
E 11/2x29/32 .82 21.00 11/8 13/4
3V 3/8x5/16 .05 2.60 11/32 13/32
5V 5/8x7/16 .10 7.00 1/2 11/16
8V 1x7/8 .20 12.50 3/4 11/8
55
Gripbelt® Drive Engineering Data
2TKOL = DK= 1.0forChainDrives 1.25forGearDrives 1.25forGearbeltDrives 1.50forV-BeltDrives 2.50forFlatBeltDrivesLINEALSHAFTEXPANSION= .0000063x length ininches x temperatureinc. indegreesFKW = HPx.7457IN. = MM/25.4TEMP°C = (°F-32).556Kg = LBSx2.205
1HP=54"lbs.@1160RPM1HP=36"lbs.@1750RPM FORCExFPMHP= 33,000 T"lbs.xRPMHP = 63,025 T'lbs.xRPMHP = 5,252 63,025xHPT"lbs.= RPM 5,252xHPT'lbs. = RPMFPM = .2618xDIA.xRPM 63,025xHPRPM = TORQUET =FORCExLEVERARM TORQUEF = RADIUS FPMRPM = .2618xDIA.
Theinformationonthesetwopagesareincludedfortechnicalsupportinfiguringnon-standarddrives.
Section2F
56
Gripbelt® Drive Engineering Data
General rules of tensioning.
1.Idealtensionisthelowesttensionatwhichthebeltwillnotslipunderpeakloadconditions.
2.Checktensionfrequentlyduringthefirst24-48hoursofoperation.
3.Overtensioningshortensbeltandbearinglife.
4.Keepbeltsfreefromforeignmaterialwhichmaycauseslip.
5.MakeV-driveinspectiononaperiodicbasis.Tensionwhenslipping.Neverapplybeltdressingasthiswilldamagethebeltandcauseearlyfailure.
Tensioning B-Belt Drives
Smallo-ring Force
scale
Largeo-ring
Spanscale
PartNumber"BeltTensionChecker"
TableNo.1
FHPBeltsDeflectionForce
Section2F
CrossSection
SmallP.D.Range
Lbs
Min. Max.
3L1.25-1.752.00-2.252.50-3.00
1/25/83/4
5/87/811/8
4L2.10-2.803.00-3.503.70-5.00
1/81/217/8
15/821/825/8
5L 3.00-4.204.50-5.20
223/8
27/833/8
57
Gripbelt® Drive Engineering Data
TensionMeasurementProcedure1.Measurethebeltspan(seeillustrationbelow).
2.Positionbottomof the largeo-ringon thespanscaleat themeasuredbeltspan.
3.Setthesmallo-ringonthedeflectionforcescaletozero.
4.Placethetensioncheckersquarelyononebeltatthecenterofthebeltspan.Applyaforceontheplungerandperpendiculartothebeltspanuntilthebottomofthelargeo-ringisevenwiththetopofthenextbeltorwiththebottomofastraightedgelaid across the sheaves.
5.Removethetensioncheckerandreadtheforceappliedfromthebottomofthesmallo-ringonthedeflectionforcescale.
6.Compare the force you have applied with the values giveninTableNo.2onpage56.Theforceshouldbebetweentheminimumandmaximumshown.Themaximumvalueisshownfor "New Belt" and new belts should be tensioned at thisvaluetoallowforexpectedtensionloss.UsedbeltsshouldbemaintainedattheminimumvalueasindicatedinTableNo.2on page 56.
Note:Theratioofdeflectiontobeltspanis1:64.
The above methodof tensioningbelt drives is to be used when a drive has beenselected in accordance with the suggestions listed in the drive selection tables oftheHVACcatalog.Fordriveswithservicefactorgreaterthan1.5,consultApplicationEngineering. For exact tension calculations use the Emerson PowerTransmissionEdgeSelectionProgram.
BEL T SP ANDEFLECTION =
BEL T SP AN64
Section2F
58
Gripbelt® Drive Engineering Data
TableNo.2SheaveDiameter-Inches
Section2F
CrossSection
SmallestSheave
DiameterRange
RPMRange
A, AX
3.0-3.6 1000-25002501-4000
3.8-4.8 1000-25002501-4000
5.0-7.0 1000-25002501-4000
B, BX
3.4-4.2 860-25002501-4000
4.4-5.6 860-25002501-4000
5.8-8.6 860-25002501-4000
C, CX7.0-9.0 500-1740
1741-3000
9.5-16.0 500-17401741-3000
D12.0-16.0 200-850
851-1500
18.0-20.0 200-850851-1500
3V, 3VX
2.2-2.4 1000-25002501-4000
2.65-3.65 1000-25002501-4000
4.12-6.90 1000-25002501-4000
5V, 5VX
4.4-6.7500-17491750-30003001-4000
7.1-10.9 500-17401741-3000
11.8-16.0 500-17401741-3000
8V12.5-17.0 200-850
851-1500
18.0-22.4 200-850851-1500
59
Gripbelt® Drive Engineering Data
DeflectionForce-Lbs.
Section2F
Belt Deflection ForceSuper Gripbelts andUnotched Gripbands
Gripnotch™ Belts andNotched Gripbands
Used Belt New Belt Used Belt New Belt3.72.8
5.54.2
4.13.4
6.15.0
4.53.8
6.85.7
5.04.3
7.46.4
5.44.7
8.07.0
5.75.1
9.47.6
--
--
4.94.2
7.26.2
5.34.5
7.96.7
7.17.1
10.59.1
6.36.0
9.48.9
8.57.3
12.610.9
11.59.4
17.013.8
14.711.9
21.817.5
14.112.5
21.018.5
15.914.6
23.521.6
24.921.2
37.031.3
--
--
30.425.6
45.238.0
--
--
--
--
3.32.9
4.94.3
3.63.0
5.14.4
4.23.8
6.25.6
4.94.4
7.36.6
5.34.9
7.97.3
---
---
10.28.85.6
15.213.28.5
12.711.2
18.916.7
14.813.7
22.120.1
15.514.6
23.421.8
17.116.8
25.525.0
33.026.8
49.339.9
--
--
39.635.3
59.252.7
--
--
60
“358” Gripbelt®
Gripnotch™
Gripbelt
V-Belt DriveAdvantages
V-belt drives provide many maintenanceadvantages thathelp inyourdaily struggle toreduce equipment repairs and to hold forceddowntimetothelowestpossiblelevel.1. Theyarerugged–theywillgiveyearsoftrouble-free
performancewhengivenjustreasonableattention...even under adverse conditions.
2. Theyareclean–requirenolubrication.
3. Theyareefficient–performingwithanaverageof94-98%efficiency.
4. Theyaresmoothstartingandrunning.
5. Theycoverextremelywidehorsepowerranges.
6. Theypermitawiderangeofdrivenspeeds,usingstandardelectricmotors.
7. Theydampenvibrationbetweendrivinganddrivenmachines.
8. Theyarequiet.
9. Theyactasa“safetyfuse”inthepowerdrivebecausetheyrefusetotransmitasevereoverloadofpower,exceptforaverybrieftime.
10. V-belts and sheaves weargradually–makingpreventivecorrectivemaintenancesimpleandeasy.
61
Super Gripbelt
V-S VariableSpeed Gripbelt®
Offers the largestselection of V-Belts in the universe!
Browning is universally known for V-belt drives. In fact, nowhere else can you find such a complete range of V-belting — and the sheaves to run them — all in stock. Choose the type that's best for your application — Classical, "358" and FHP.
- Matched Belts -And there's no problem with matched belt sizes either. Browning offers the "CODE 1" one-match belt system on all classical and "358" belts, allowing easy selection with just one match number for each belt size. The CODE 1 symbol on any Browning belt provides matching tolerances tighter than ANSI (American National Standards Inc.). Machine matching of belts is also available for precision match requirements.
Wherever you are in the universe — make Browning your first choice in V-belts.
Note: Belt matching is available upon request. The product will ship from our National Distribution Center.
62
SuperGripbelt®
TableNo.1SuperGripbeltbeltsarestaticconducting.BeltNo.
Length Wt.Lbs.
BeltNo.
Length Wt.Lbs.Outside Pitch Outside Pitch
A20 22.2” 21.3” .2 A60 62.2" 61.3" .4A21 23.2 22.3 .2 A61 63.2 62.3 .4A22 24.2 23.3 .2 A62 64.2 63.3 .4A23 25.2 24.3 .2 A63 65.2 64.3 .4A24 26.2 25.3 .2 A64 66.2 65.3 .4A25 27.2 26.3 .2 A65 67.2 66.3 .5A26 28.2 27.3 .2 A66 68.2 67.3 .5A27 29.2 28.3 .2 A67 69.2 68.3 .5A28 30.2 29.3 .2 A68 70.2 69.3 .5A29 31.2 30.3 .2 A69 71.2 70.3 .5A30 32.2 31.3 .2 A70 72.2 71.3 .5A31 33.2 32.3 .2 A71 73.2 72.3 .5A32 34.2 33.3 .2 A72 74.2 73.3 .5A33 35.2 34.3 .2 A73 75.2 74.3 .5A34 36.2 35.3 .2 A74 76.2 75.3 .5A35 37.2 36.3 .2 A75 77.2 76.3 .5A36 38.2 37.3 .3 A76 78.2 77.3 .5A37 39.2 38.3 .3 A77 79.2 78.3 .5A38 40.2 39.3 .3 A78 80.2 79.3 .5A39 41.2 40.3 .3 A79 81.2 80.3 .5A40 42.2 41.3 .3 A80 82.2 81.3 .5A41 43.2 42.3 .3 A81 83.3 82.3 .5A42 44.2 43.3 .3 A82 84.2 83.3 .6A43 45.2 44.3 .3 A83 85.2 84.3 .6A44 46.2 45.3 .3 A84 86.2 85.3 .6A45 47.2 46.3 .3 A85 87.2 86.3 .6A46 48.2 47.3 .3 A86 88.2 87.3 .6A47 49.2 48.3 .3 A87 89.2 88.3 .6A48 50.2 49.3 .3 A88 90.2 89.3 .6A49 51.2 50.3 .4 A89 91.2 90.3 .6A50 52.2 51.3 .4 A90 92.2 91.3 .6A51 53.2 52.3 .4 A91 93.2 92.3 .6A52 54.2 53.3 .4 A92 94.2 93.3 .6A53 55.2 54.3 .4 A93 95.2 94.3 .6A54 56.2 55.3 .4 A94 96.2 95.3 .6A55 57.2 56.3 .4 A95 97.2 96.3 .6A56 58.2 57.3 .4 A96 98.2 97.3 .7A57 59.2 58.3 .4 A97 99.2 98.3 .7A58 60.2 59.3 .4 A98 100.2 99.3 .7A59 61.2 60.3 .4 A100 102.2 101.3 .7
63
SuperGripbelt®
TableNo.2SuperGripbeltbeltsarestaticconducting.BeltNo.
Length Wt.Lbs.
BeltNo.
Length Wt.Lbs.Outside Pitch Outside Pitch
A103 105.2" 104.3" .7 B54 57.0 55.8 .6A105 107.2 106.3 .7 B55 58.0 56.8 .6A110 112.2 111.3 .8 B56 59.0 57.8 .6A112 114.2 113.3 .8 B57 60.0 58.8 .7A120 122.2 121.3 .8 B58 61.0 59.8 .7A125 127.2 126.3 .9 B59 62.0 60.8 .7A128 130.2 129.3 .9 B60 63.0 61.8 .7A136 138.2 137.3 .9 B61 64.0 62.8 .7A144 146.2 145.3 1.0 B62 65.0 63.8 .7A158 160.2 159.3 1.1 B63 66.0 64.8 .7A173 175.2 174.3 1.2 B64 67.0 65.8 .7A180 182.2 181.3 1.2 B65 68.0 66.8 .7B25 28.0 26.8 .3 B66 69.0 67.8 .7B26 29.0 27.8 .3 B67 70.0 68.8 .7B28 31.0 29.8 .3 B68 71.0 69.8 .7B29 32.0 30.8 .3 B69 72.0 70.8 .8B30 33.0 31.8 .3 B70 73.0 71.8 .8B31 34.0 32.8 .3 B71 74.0 72.8 .8B32 35.0 33.8 .3 B72 75.0 73.8 .8B33 36.0 34.8 .4 B73 76.0 74.8 .8B34 37.0 35.8 .4 B74 77.0 75.8 .8B35 38.0 36.8 .4 B75 78.0 76.8 .8B36 39.0 37.8 .4 B76 79.0 77.8 .8B37 40.0 38.8 .4 B77 80.0 78.8 .8B38 41.0 39.8 .4 B78 81.0 79.8 .8B39 42.0 40.8 .4 B79 82.0 80.8 .8B40 43.0 41.8 .5 B80 83.0 81.8 .9B41 44.0 42.8 .5 B81 84.0 82.8 .9B42 45.0 43.8 .5 B82 85.0 83.8 .9B43 46.0 44.8 .5 B83 86.0 84.8 .9B44 47.0 45.8 .5 B84 87.0 85.8 .9B45 48.0 46.8 .5 B85 88.0 86.8 .9B46 49.0 47.8 .5 B86 89.0 87.8 1.0B47 50.0 48.8 .5 B87 90.0 88.8 1.0B48 51.0 49.8 .5 B88 91.0 89.8 1.0B49 52.0 50.8 .6 B89 92.0 90.8 1.0B50 53.0 51.8 .6 B90 93.0 91.8 1.0B51 54.0" 52.8" .6B52 55.0 53.8 .6B53 56.0 54.8 .6
64
SuperGripbelt®
TableNo.3SuperGripbeltbeltsarestaticconducting.BeltNo.
Length Wt.Lbs.
BeltNo.
Length Wt.Lbs.Outside Pitch Outside Pitch
B90 93.0" 91.8" 1.0 B225 226.5" 225.3" 2.5B91 94.0 92.8 1.0 B240 241.5 240.3 2.6B92 95.0 93.8 1.0 B255 256.5 255.3 2.8B93 96.0 94.8 1.0 B270 271.5 270.3 2.9B94 97.0 95.8 1.0 B285 286.5 285.3 3.1B95 98.0 96.8 1.0 B300 301.5 300.3 3.2B96 99.0 97.8 1.1 B315 316.5 315.3 3.4B97 100.0 98.8 1.1 B360 361.5 360.3 4.0B98 101.0 99.8 1.1 C51 55.2 53.9 1.0B99 102.0 100.8 1.1 C55 59.2 57.9 1.1
B100 103.0 101.8 1.1 C60 64.2 62.9 1.2B101 104.0 102.8 1.1 C68 72.2 70.9 1.3B103 106.0 104.8 1.1 C72 76.2 74.9 1.4B105 108.0 106.8 1.1 C75 79.2 77.9 1.4B106 109.0 107.8 1.1 C78 82.2 80.9 1.5B108 111.0 109.8 1.2 C81 85.2 83.9 1.6B111 114.0 112.8 1.2 C85 89.2 87.9 1.6B112 115.0 113.8 1.2 C90 94.2 92.9 1.7B116 119.0 117.8 1.3 C96 100.2 98.9 1.8B120 123.0 121.8 1.3 C97 101.2 99.9 1.8B123 126.0 124.8 1.3 C99 103.2 101.9 1.9B124 127.0 125.8 1.3 C100 104.2 102.9 1.9B126 129.0 127.8 1.3 C101 105.2 103.9 1.9B128 131.0 129.8 1.4 C105 109.2 107.9 2.0B133 136.0 134.8 1.4 C108 112.2 110.9 2.0B136 139.0 137.8 1.5 C109 113.2 111.9 2.0B140 143.0 141.8 1.5 C111 115.2 113.9 2.1B144 147.0 145.8 1.6 C112 116.2 114.9 2.1B148 151.0 149.8 1.6 C115 119.2 117.9 2.1B150 153.0 151.8 1.6 C120 124.2 122.9 2.3B154 157.0 155.8 1.6 C124 128.2 126.9 2.4B158 161.0 159.8 1.7 C128 132.2 130.9 2.4B162 165.0 163.8 1.7 C136 140.2 138.9 2.6B173 176.0 174.8 1.7 C144 148.2 146.9 2.8B180 183.0 181.8 1.9 C148 152.2 150.9 2.8B190 193.0 191.8 1.9 C150 154.2 152.9 2.9B191 194.0 192.2 2.0 C158 162.2 160.9 3.0B195 198.0 196.8 2.0 C162 166.2 164.9 3.1B205 208.0 206.9 2.0 C173 177.2 175.9 3.3B210 213.0 211.8 2.2 C180 184.2 182.9 3.4
65
SuperGripbelt®
TableNo.4SuperGripbeltbeltsarestaticconducting.BeltNo.
LengthWt.Lbs.
Outside PitchC195 199.2" 197.9" 3.7C210 214.2 212.9 4.0C225 227.2 225.9 4.3C240 242.2 240.9 4.6C255 257.2 255.9 4.9C270 272.2 270.9 5.2C285 287.2 285.9 5.4C300 302.2 300.9 5.7C315 317.2 315.9 6.0C330 332.2 330.9 6.3C345 347.2 345.9 6.6C360 362.2 360.9 6.9C390 392.2 390.9 7.5C420 422.2 420.9 8.0D120 125.2 123.3 4.0D128 133.2 131.3 4.4D144 149.2 147.3 5.0D158 163.2 161.3 5.3D162 167.2 165.3 5.5D173 178.2 176.3 5.8D180 185.2 183.3 6.0D195 200.2 198.3 6.3D210 215.2 213.3 6.8D225 227.7 225.8 7.1D240 242.7 240.8 7.7D255 257.7 255.8 8.1D270 272.2 270.8 8.9D285 287.7 285.8 9.8D300 302.7 300.8 10.5D315 317.7 315.8 10.8D330 332.7 330.8 10.6D345 347.7 345.8 11.7D460 362.7 360.8 11.5D390 392.7 390.8 12.4D420 422.7 420.8 13.4D450 452.7 450.8 16.3D480 482.7 480.8 15.8D540 542.7 540.8 19.9D600 602.7 600.8 21.6D660 662.7 660.8 28.8
66
Gripnotch™ BeltsTableNo.1
•Precisionmoldedrawedgeconctruction•Morehorsepowerinlessspace•Notchesaremoldedextradeep•Oilandheatresistant•Staticconducting
BeltNo.
Length Wt.Lbs.
BeltNo.
Length Wt.Lbs.Outside Pitch Outside Pitch
AX20 22.2” 21.3” 0.2 AX60 62.2" 61.3" 0.4AX21 23.2 22.3 0.2 AX61 63.2 62.3 0.4AX22 24.2 23.3 0.2 AX62 64.2 63.3 0.4AX23 25.2 24.3 0.2 AX63 65.2 64.3 0.4AX24 26.2 25.3 0.2 AX64 66.2 65.3 0.4AX25 27.2 26.3 0.2 AX65 67.2 66.3 0.5AX26 28.2 27.3 0.2 AX66 68.2 67.3 0.5AX27 29.2 28.3 0.2 AX67 69.2 68.3 0.5AX28 30.2 29.3 0.2 AX68 70.2 69.3 0.5AX29 31.2 30.3 0.2 AX69 71.2 70.3 0.5AX30 32.2 31.3 0.2 AX70 72.2 71.3 0.5AX31 33.2 32.3 0.2 AX71 73.2 72.3 0.5AX32 34.2 33.3 0.2 AX72 74.2 73.3 0.5AX33 35.2 34.3 0.2 AX73 75.2 74.3 0.5AX34 36.2 35.3 0.2 AX74 76.2 75.3 0.5AX35 37.2 36.3 0.2 AX75 77.2 76.3 0.5AX36 38.2 37.3 0.3 AX76 78.2 77.3 0.5AX37 39.2 38.3 0.3 AX77 79.2 78.3 0.5AX38 40.2 39.3 0.3 AX78 80.2 79.3 0.5AX39 41.2 40.3 0.3 AX79 81.2 80.3 0.5AX40 42.2 41.3 0.3 AX80 82.2 81.3 0.5AX41 43.2 42.3 0.3 AX81 83.2 82.3 0.5AX42 44.2 43.3 0.3 AX82 84.2 83.3 0.5AX43 45.2 44.3 0.3 AX83 85.2 84.3 0.5AX44 46.2 45.3 0.3 AX84 86.2 85.3 0.5AX45 47.2 46.3 0.3 AX85 87.2 86.3 0.6AX46 48.2 47.3 0.3 AX86 88.2 87.3 0.6AX47 49.2 48.3 0.3 AX87 89.2 88.3 0.6AX48 50.2 49.3 0.3 AX88 90.2 89.3 0.6AX49 51.2 50.3 0.4 AX89 91.2 90.3 0.6AX50 52.2 51.3 0.4 AX90 92.2 91.3 0.6AX51 53.2 52.3 0.4 AX91 93.2 92.3 0.6AX52 54.2 53.3 0.4 AX92 94.2 93.3 0.6AX53 55.2 54.3 0.4 AX93 95.2 94.3 0.6AX54 56.2 55.3 0.4 AX94 96.2 95.3 0.6AX55 57.2 56.3 0.4 AX95 97.2 96.3 0.6AX56 58.2 57.3 0.4 AX96 98.2 97.3 0.7AX57 59.2 58.3 0.4 AX97 99.2 98.3 0.7AX58 60.2 59.3 0.4 AX98 100.2 99.3 0.7AX59 61.2 60.3 0.4 AX99 101.2 100.3 0.7
67
Gripnotch™ BeltsTableNo.2
•Precisionmoldedrawedgeconctruction•Morehorsepowerinlessspace•Notchesaremoldedextradeep•Oilandheatresistant•Staticconducting
BeltNo.
Length Wt.Lbs.
BeltNo.
Length Wt.Lbs.Outside Pitch Outside Pitch
AX100 102.2" 101.3" 00.7 BX56 59.0” 57.8” 0.6AX105 107.2 106.3 0.7 BX57 60.0 58.8 0.6AX110 112.2 111.3 0.8 BX58 61.0 59.8 0.6AX112 114.2 113.3 0.8 BX59 62.0 60.8 0.7AX120 122.2 121.3 0.8 BX60 63.0 61.8 0.7AX128 130.2 129.3 0.9 BX61 64.0 62.8 0.7AX136 138.2 137.3 0.9 BX62 65.0 63.8 0.7AX144 146.2 145.3 1.0 BX63 66.0 64.8 0.7AX158 160.2 159.3 1.0 BX64 67.0 65.8 0.7AX173 175.2 174.3 1.1 BX65 68.0 66.8 0.8AX180 182.2 181.3 1.2 BX66 69.0 67.8 0.8BX27 30.0 28.8 0.4 BX67 70.0 68.8 0.8BX28 31.0 29.8 0.4 BX68 71.0 69.8 0.8BX29 32.0 30.8 0.4 BX69 72.0 70.8 0.8BX30 33.0 31.8 0.4 BX70 73.0 71.8 0.8BX31 34.0 32.8 0.4 BX71 74.0 72.8 0.8BX32 35.0 33.8 0.4 BX72 75.0 73.8 0.8BX33 36.0 34.8 0.4 BX73 76.0 74.8 0.8BX34 37.0 35.8 0.4 BX74 77.0 75.8 0.8BX35 38.0 36.8 0.4 BX75 78.0 76.8 0.9BX36 39.0 37.8 0.4 BX76 78.0 77.8 0.9BX37 40.0 38.8 0.4 BX77 80.0 78.8 0.9BX38 41.0 39.8 0.4 BX78 81.0 79.8 0.9BX39 42.0 40.8 0.5 BX79 82.0 80.8 0.9BX40 43.0 41.8 0.5 BX80 83.0 81.8 0.9BX41 44.0 42.8 0.5 BX81 84.0 82.8 0.9BX42 45.0 43.8 0.5 BX82 85.0 83.8 0.9BX43 46.0 44.8 0.5 BX83 86.0 84.8 1.0BX44 47.0 45.8 0.5 BX84 87.0 85.8 1.0BX45 48.0 46.8 0.5 BX85 88.0 86.8 1.0BX46 49.0 47.8 0.5 BX86 89.0 87.8 1.0BX47 50.0 48.8 0.5 BX87 90.0 88.8 1.0BX48 51.0 49.8 0.6 BX88 91.0 89.8 1.0BX49 52.0 50.8 0.6 BX89 92.0 90.8 1.0BX50 53.0 51.8 0.6 BX90 93.0 91.8 1.1BX51 54.0 52.8 0.6 BX91 94.0 92.8 1.1BX52 55.0 53.8 0.6 BX92 95.0 93.8 1.1BX53 56.0 54.8 0.6 BX94 97.0 95.8 1.1BX54 67.0 55.8 0.6 BX95 98.0 96.8 1.1BX55 58.0 56.8 0.6 BX96 99.0 97.8 1.1
68
Gripnotch™ BeltsTableNo.3
•Precisionmoldedrawedgeconctruction•Morehorsepowerinlessspace•Notchesaremoldedextradeep•Oilandheatresistant•Staticconducting
BeltNo.
LengthWt.Lbs.
Outside PitchBX97 100.0" 98.8" 1.1BX98 101.0 99.8 1.1BX99 102.0 100.8 1.2BX100 103.0 101.8 1.2BX103 106.0 104.8 1.2BX105 108.0 106.8 1.2BX106 109.0 107.8 1.2BX108 111.0 109.8 1.3BX112 115.0 113.8 1.3BX113 116.0 114.8 1.3BX115 118.0 116.8 1.4BX116 119.0 117.8 1.4BX120 123.0 121.8 1.4BX123 126.0 124.8 1.4BX124 127.0 125.8 1.4BX126 129.0 127.8 1.4BX128 131.0 129.8 1.5BX133 136.0 134.8 1.5BX136 139.0 137.8 1.6BX140 143.0 141.8 1.6BX144 147.0” 145.8” 1.7BX148 151.0 149.8 1.7BX150 153.0 151.8 1.8BX154 157.0 155.8 1.8BX158 161.0 159.8 1.8BX162 165.0 163.8 1.9BX173 176.0 174.8 2.0BX180 183.0 181.8 2.1BX191 194.0 192.8 2.2BX195 198.0 196.8 2.3BX210 213.0 211.8 2.5BX225 228.0 226.8 2.7BX240 241.5 240.3 2.8BX255 256.5 255.3 3.0BX270 271.5 270.3 3.2BX300 301.5 300.3 3.6CX51 55.2 53.9 1.0CX55 59.2 57.9 1.1CX60 64.2 62.9 1.2CX68 72.2 70.9 1.4
69
Gripnotch™ BeltsTableNo.4
•Precisionmoldedrawedgeconctruction•Morehorsepowerinlessspace•Notchesaremoldedextradeep•Oilandheatresistant•Staticconducting
BeltNo.
LengthWt.Lbs.
Outside PitchCX72 76.2" 74.9" 1.4CX75 79.2 77.9 1.5CX78 82.2 80.9 1.6CX81 85.2 83.9 1.6CX85 89.2 87.9 1.7CX90 94.2 92.9 1.8CX96 100.2 98.9 1.9CX100 104.2 102.2 2.0CX101 105.2 103.9 2.0CX105 109.2 107.9 2.0CX109 113.2 111.9 2.1CX111 115.2 113.9 2.2CX112 116.2 114.9 2.2CX115 119.2 117.9 2.3CX120 124.2 122.9 2.4CX128 132.2 130.9 2.6CX136 140.2 138.9 2.7CX144 148.2 146.9 2.9CX150 154.2 152.9 3.0CX158 162.2 160.9 3.0CX162 166.2 164.9 3.1CX173 177.2 175.9 3.1CX180 184.2 182.9 3.2CX195 199.2 197.9 3.5CX210 214.2 212.9 4.0CX225 229.2 227.9 4.2CX240 242.2 240.9 4.3CX255 259.2 257.9 4.6CX270 272.2 270.9 5..0CX300 304.2 302.9 5.4CX330 334.2 332.9 5.9CX360 364.2 362.9 6.3DX120 125.2 123.3 4.3DX128 133.2 131.2 4.4DX158 163.2 161.3 5.4DX162 167.2 165.3 5.6DX180 185.2 183.2 6.2DX360 362.7 360.8 12.3
70
FHPBeltsTableNo.1
•Wrappedconstructionprovidessmooth,quietoperation•Formulatedformaximumflexibilitywithsmallerdiametersheaves•Oilandheatresistant-staticconducting
BeltNo.
Length Wt.Lbs.
BeltNo.
Length Wt.Lbs.Outside Pitch Outside Pitch
2L120 12” 11.6” 0.03 3L380 38" 37.3" 0.122L140 14 13.6 0.04 3L390 39 38.3 0.122L150 15 14.6 0.04 3L400 40 39.3 0.132L160 16 15.6 0.04 3L410 41 40.3 0.132L180 18 17.6 0.05 3L420 42 41.3 0.132L200 20 19.6 0.06 3L430 43 42.3 0.132L220 22 21.6 0.06 3L440 44 43.3 0.142L240 24 23.6 0.07 3L450 45 44.3 0.142L285 281/2 28.1 0.07 3L460 46 45.3 0.142L300 30 29.6 0.08 3L470 47 46.3 0.152L310 31 30.6 0.08 3L480 48 47.3 0.152L320 32 31.6 0.09 3L490 49 48.3 0.152L325 321/2 32.1 0.09 3L500 50 49.3 0.162L345 341/2 34.1 0.09 3L510 51 50.3 0.163L120 12 11.3 0.04 3L520 52 51.3 0.163L130 13 12.3 0.04 3L530 53 52.3 0.173L140 14 13.3 0.05 3L540 54 53.3 0.173L150 15 14.3 0.05 3L550 55 54.3 0.183L160 16 15.3 0.05 3L560 56 55.3 0.183L170 17 16.3 0.05 3L570 57 56.3 0.183L180 18 17.3 0.06 3L580 58 57.3 0.183L190 19 18.3 0.06 3L590 59 58.3 0.193L200 20 19.3 0.06 3L600 60 59.3 0.193L210 21 20.3 0.07 3L610 61 60.3 0.193L220 22 21.3 0.07 3L620 62 61.3 0.193L230 23 22.3 0.07 3L630 63 62.3 0.23L240 24 23.3 0.08 4L170 17 16 0.13L250 25 24.3 0.08 4L180 18 17 0.13L260 26 25.3 0.08 4L190 19 18 0.113L270 27 26.3 0.08 4L200 20 19 0.113L280 28 27.3 0.09 4L210 21 20 0.123L290 29 28.3 0.09 4L220 22 21 0.123L300 30 29.3 0.09 4L225 221/2 21.5 0.133L310 31 30.3 .010 4L230 23 22 0.133L320 32 31.3 0.1 4L240 24 23 0.133L330 33 32.3 0.1 4L250 25 24 0.133L340 34 33.3 0.11 4L260 26 25 0.133L350 35 34.3 0.11 4L270 27 26 0.133L360 36 35.3 0.11 4L280 28 27 0.133L370 37 36.3 0.12 4L290 29 28 0.13
71
FHPBeltsTableNo.2
•Wrappedconstructionprovidessmooth,quietoperation•Formulatedformaximumflexibilitywithsmallerdiametersheaves•Oilandheatresistant-staticconducting
BeltNo.
Length Wt.Lbs.
BeltNo.
Length Wt.Lbs.Outside Pitch Outside Pitch
4L300 30" 29" 0.13 4L690 69" 68" 0.384L310 31 30 0.19 4L700 70 69 0.384L320 32 31 0.19 4L710 71 70 0.384L330 33 32 0.19 4L720 72 71 0.384L340 34 33 0.19 4L730 73 72 0.384L350 35 34 0.19 4L740 74 73 0.384L360 36 35 0.19 4L750 75 74 0.444L370 37 36 0.19 4L760 76 75 0.444L380 38 37 0.19 4L770 77 76 0.444L390 39 38 0.25 4L780 78 77 0.444L400 40 39 0.25 4L790 79 78 0.444L410 41 40 0.25 4L800 80 79 0.444L415 411/2 40.5 0.25 4L810 81 80 0.444L420 42 41 0.25 4L820 82 81 0.444L430 43 42 0.25 4L830 83 82 0.444L440 44 43 0.25 4L840 84 83 0.444L450 45 44 0.25 4L850 85 84 0.54L460 46 45 0.25 4L860 86 85 0.54L470 47 46 0.25 4L870 87 86 0.54L480 48 47 0.25 4L880 88 87 0.54L490 49 48 0.31 4L890 89 88 0.54L500 50 49 0.31 4L900 90 89 0.54L510 51 50 0.31 4L910 91 90 0.54L520 52 51 0.31 4L920 92 91 0.54L530 53 52 0.31 4L930 93 92 0.54L540 54 53 0.31 4L940 94 93 0.54L550 55 54 0.31 4L950 95 94 0.54L560 56 55 0.31 4L960 96 95 0.54L570 57 56 0.31 4L970 97 96 0.54L580 58 57 0.31 4L980 98 97 0.564L590 59 58 0.31 4L990 99 98 0.564L600 60 59 0.31 4L1000 100 99 0.564L610 61 60 0.31 5L230 23 21.8 0.194L620 62 61 0.31 5L240 24 22.8 0.194L630 63 62 0.31 5L250 25 23.8 0.194L640 64 63 0.38 5L260 26 24.8 0.194L650 65 64.0 0.38 5L270 27 25.8 0.194L660 66 65 0.38 5L280 28 26.8 0.194L670 67 66 0.38 5L290 29 27.8 0.194L680 68 67 0.38 5L300 30 28.8 0.29
72
FHPBeltsTableNo.3
•Wrappedconstructionprovidessmooth,quietoperation•Formulatedformaximumflexibilitywithsmallerdiametersheaves•Oilandheatresistant-staticconducting
BeltNo.
Length Wt.Lbs.Outside Pitch
5L310 31" 29.8" 0.255L320 32 30.8 0.255L330 33 31.8 0.255L340 34 32.8 0.255L350 35 33.8 0.315L360 36 34.8 0.315L370 37 35.8 0.315L380 38 36.8 0.315L390 39 37.8 0.315L400 40 38.8 0.315L410 41 39.8 0.385L420 42 40.8 0.385L430 43 41.8 0.385L440 44 42.8 0.385L450 45” 43.8 0.385L460 46 44.8 0.445L470 47 45.8 0.445L480 48 46.8 0.445L490 49 47.8 0.55L500 50 48.8 0.55L510 51 49.8 0.55L520 52 50.8 0.55L530 53 51.8 0.55L540 54 52.8 0.55L550 55 53.8 0.55L560 56 54.8 0.55L570 57 55.8 0.55L580 58 56.8 0.55L590 59 57.8 0.55L600 60 58.8 0.565L610 61 59.8 0.565L620 62 60.8 0.565L630 63 61.8 0.565L640 64 62.8 0.635L650 65 63.8 0.635L660 66 64.8 0.635L670 67 65.8 0.635L680 68 66.8 0.635L690 69 67.8 0.635L700 70 68.8 0.69
73
FHPBeltsTableNo.4
•Wrappedconstructionprovidessmooth,quietoperation•Formulatedformaximumflexibilitywithsmallerdiametersheaves•Oilandheatresistant-staticconducting
BeltNo.
Length Wt.Lbs.Outside Pitch5L710 71 69.8 0.695L720 72 70.8 0.695L730 73 71.8 0.695L740 74 72.8 0.695L750 75 73.8 0.695L760 76 74.8 0.695L770 77 75.8 0.695L780 78 76.8 0.755L790 79 77.8 0.755L800 80 78.8 0.755L810 81 79.8 0.755L820 82 80.8 0.755L830 83 81.8 0.755L840 84 82.8 0.755L850 85 83.8 0.815L860 86 84.8 0.815L870 87 85.8 0.815L880 88 86.8 0.815L890 89 87.8 0.815L900 90 88.8 0.815L910 91 89.8 0.885L920 92 90.8 0.885L930 93 91.8 0.885L940 94 92.8 0.885L950 95 93.8 0.885L960 96 94.8 0.885L970 97 95.8 0.885L980 98 96.8 0.945L990 99 97.8 0.94
5L1000 100 98.8 0.94
74
"358"Gripbelts® and Gripnotch™
TableNo.1•Oilandheatresistant•Morehorsepowerinlessspace•Staticconducting
PartNo.
OutsideLength
Wt.Lbs.
Part No.
OutsideLength
Wt.Lbs.
Part No.
OutsideLength
Wt.Lbs
3VX250 25.0 .1 5VX590 59.0 .6 5V2240 224.0 2.6
3VX265 26.5 .1 5VX600 60.0 .7 5V2360 236.0 2.8
3VX280 28.0 .1 5VX610 61.0 .7 5V2500 250.0 2.9
3VX300 30.0 .1 5VX630 63.0 .7 5V2650 265.0 3.2
3VX315 31.5 .1 5VX650 65.0 .7 5V2800 280.0 3.3
3VX335 33.5 .1 5VX660 66.0 .8 5V3000 300.0 3.6
3VX355 35.5 .2 5VX670 67.0 .8 5V3150 315.0 3.9
3VX375 37.5 .2 5VX680 68.0 .8 5V3350 335.0 4.0
3VX400 40.0 .2 5VX690 69.0 .8 5V3550 355.0 4.3
3VX425 42.5 .2 5VX710 71.0 .8
3VX450 45.0 .2 5VX730 73.0 .8 8V1000 100.0 3.3
3VX475 47.0 .2 5VX740 74.0 .8 8V1120 112.0 3.6
3VX500 50.0 .2 5VX750 75.0 .8 8V1180 118.0 3.8
3VX530 53.0 .2 5VX780 78.0 .8 8vV1250 125.0 3.9
3VX560 56.0 .2 5VX800 80.0 .9 8V1320 132.0 4.3
3VX600 60.0 .3 5VX810 81.0 .9 8V1400 140.0 4.5
3VX630 63.0 .3 5VX830 83.0 .9 8V1500 150.0 4.8
3VX670 67.0 .3 5VX840 84.0 .9 8V1600 160.0 5.1
3VX710 71.0 .3 5VX850 85.0 .9 8V1700 170.0 5.6
3VX750 75.0 .3 5VX860 86.0 .9 8V1800 180.0 6.0
3VX800 80.0 .4 5VX880 88.0 .9 8V1900 190.0 6.3
3VX850 85.0 .4 5VX900 90.0 1.0 8V2000 200.0 6.5
3VX900 90.0 .4 5VX930 93.0 1.0 8V2120 212.0 6.9
3VX950 95.0 .4 5VX950 95.0 1.0 8V2240 224.0 7.2
3VX1000 100.0 .4 5VX960 96.0 1.0 8V2360 236.0 7.6
3VX1060 106.0 .4 5VX1000 100.0 1.1 8V2500 250.0 8.0
3VX1120 112.0 .5 5VX1030 103.0 1.1 8V2650 265.0 8.5
3VX1180 118.0 .5 5VX1060 106.0 1.2 8V2800 280.0 8.9
3VX1250 125.0 .6 5VX1080 108.0 1.2 8V3000 300.0 9.6
3VX1320 132.0 .6 5VX1120 112.0 1.3 8V3150 315.0 10.3
3VX1400 140.0 .6 5VX1150 115.0 1.3 8V3350 335.0 11.4
5VX1180 118.0 1.4 8V3550 355.0 12.4
5VX450 45.0 .4 5VX1230 123.0 1.4 8V4000 400.0 13.0
5VX470 47.0 .5 5VX1250 125.0 1.4 8V4500 450.0 14.4
5VX490 49.0 .5 5VX1320 132.0 1.5
5VX500 50.0 .6 5VX1400 140.0 1.6
5VX510 51.0 .6 5VX1500 150.0 1.8
5VX530 53.0 .6 5VX1600 160.0 1.8
5VX540 54.0 .6 5VX1700 170.0 2.0
5VX550 55.0 .6 5VX1800 180.0 2.1
5VX560 56.0 .6 5VX1900 190.0 2.3
5VX570 57.0 .6 5VX2000 200.0 2.4
5VX580 58.0 .6 5V2120 212.0 2.4
75
4L,A,AXBelts-Cross-ReferenceTable1
BeltsCross-Reference
Substitutionscanbemadebasedonthischartonlyfromlefttoright.Example:4L230canbeinterchangedwithanA21orAX21,buttheA21cannotbesubstitutedfortheAX21.
4L A AX Length 4L A AX Length4L230 A21 AX21 23.2 4L630 A61 AX61 63.24L240 A22 AX22 24.2 4L640 A62 AX62 64.24L250 A23 AX23 25.2 4L650 A63 AX63 65.24L260 A24 AX24 26.2 4L660 A64 AX64 66.24L270 A25 AX25 26.2 4L670 A65 AX65 67.24L280 A26 AX26 28.2 4L680 A66 AX66 68.24L290 A27 AX27 29.2 4L690 A67 AX67 69.24L300 A28 AX28 30.2 4L700 A68 AX68 70.24L310 A29 AX29 31.2 4L710 A69 AX69 71.24L320 A30 AX30 32.2 4L720 A70 AX70 72.24L330 A31 AX31 33.2 4L730 A71 AX71 73.24L340 A32 AX32 34.2 4L740 A72 AX72 74.24L350 A33 AX33 35.2 4L750 A73 AX73 75.24L360 A34 AX34 36.2 4L760 A74 AX74 76.24L370 A35 AX35 37.2 4L770 A75 AX75 77.24L380 A36 AX36 38.2 4L780 A76 AX76 78.24L390 A37 AX37 39.2 4L790 A77 AX77 79.24L400 A38 AX38 40.2 4L800 A78 AX78 80.24L410 A39 AX39 41.2 4L810 A79 AX79 81.24L420 A40 AX40 42.2 4L820 A80 AX80 82.24L430 A41 AX41 43.0 4L830 A81 AX81 83.24L440 A42 AX42 44.2 4L840 A82 AX82 84.24L450 A43 AX43 45.2 4L850 A83 AX83 85.24L460 A44 AX44 46.2 4L860 A84 AX84 86.24L470 A45 AX45 47.2 4L870 A85 AX85 87.24L480 A46 AX46 48.2 4L880 A86 AX86 88.24L490 A47 AX47 49.2 4L890 A87 AX87 89.24L500 A48 AX48 50.2 4L900 A88 AX88 90.24L510 A49 AX49 51.2 4L910 A89 AX89 91.24L520 A50 AX50 52.2 4L920 A90 AX90 92.24L530 A51 AX51 53.2 4L930 A91 AX91 93.24L540 A52 AX52 54.2 4L940 A92 AX92 94.24L550 A53 AX53 55.2 4L950 A93 AX93 95.24L560 A54 AX54 56.2 4L960 A94 AX94 96.24L570 A55 AX55 57.2 4L970 A95 AX95 97.24L580 A56 AX56 58.2 4L980 A96 AX96 98.24L590 A57 AX57 59.2 4L990 A97 AX97 99.24L600 A58 AX58 60.2 4L1000 A98 AX98 100.24L610 A59 AX59 61.2 - A99 AX99 101.24L620 A60 AX60 62.2 - A100 AX100 102.2
76
BeltsCross-Reference
Table1
5L,B,BXBelts-Cross-Reference
Substitutionscanbemadebasedonthischartonlyfromlefttoright.Example:4L230canbeinterchangedwithanA21orAX21,buttheA21cannotbesubstitutedfortheAX21.
5L B BX Length 5L B BX Length5L310 B28 BX28 31.0 5L680 B65 BX65 68.05L320 B29 BX29 32.0 5L690 B66 BX66 69.05L330 B30 BX30 33.0 5L700 B67 BX67 70.05L340 B31 BX31 34.0 5L710 B68 BX68 71.05L350 B32 BX32 35.0 5L720 B69 BX69 72.05L360 B33 BX33 36.0 5L730 B70 BX70 73.05L370 B34 BX34 37.0 5L740 B71 BX71 74.05L380 B35 BX35 38.0 5L750 B72 BX72 75.05L390 B36 BX36 39.0 5L760 B73 BX73 76.05L400 B37 BX37 40.0 5L770 B74 BX74 77.05L410 B38 BX38 41.0 5L780 B75 BX75 78.05L420 B39 BX39 42.0 5L790 B76 BX76 79.05L430 B40 BX40 43.0 5L800 B77 BX77 80.05L440 B41 BX41 44.0 5L810 B78 BX78 81.05L450 B42 BX42 45.0 5L820 B79 BX79 82.05L460 B43 BX43 46.0 5L830 B80 BX80 83.05L470 B44 BX44 47.0 5L840 B81 BX81 84.05L480 B45 BX45 48.0 5L850 B82 BX82 85.05L490 B46 BX46 49.0 5L860 B83 BX83 86.05L500 B47 BX47 50.0 5L870 B84 BX84 87.05L510 B48 BX48 51.0 5L880 B85 BX85 88.05L520 B49 BX49 52.0 5L890 B86 BX86 89.05L530 B50 BX50 53.0 5L900 B87 BX87 90.05L540 B51 BX51 54.0 5L910 B88 BX88 91.05L550 B52 BX52 55.0 5L920 B89 BX89 92.05L560 B53 BX53 56.0 5L930 B90 BX90 93.05L570 B54 BX54 57.0 5L940 B91 BX91 94.05L580 B55 BX55 58.0 5L950 B92 BX92 95.05L590 B56 BX56 59.0 5L960 B93 BX93 96.05L600 B57 BX57 60.0 5L970 B94 BX94 97.05L610 B58 BX58 61.0 5L980 B95 BX95 98.05L620 B59 BX59 62.0 5L990 B96 BX96 99.05L630 B60 BX60 63.0 5L1000 B97 BX97 100.05L640 B61 BX61 64.0 - B98 BX98 101.05L650 B62 BX62 65.0 - B99 BX99 102.05L660 B63 BX63 66.0 - B100 BX100 103.05L670 B64 BX64 67.0
77
A Complete Selection of Browning Products Leads to the Right V-Belt for Every ApplicationTheBrowninglineoffersthemostextensiveV-drivelineavailableanywhere,whichmeansmaximumeconomyversatilityandpromptavailabilityforyoureveryapplication...trulytheright driveeverytime...forevery service.
• NewcombinationgrooveB5V®with170pluscomponentscovering10-125HPrange.MixandmatchwithconventionalA,Band5Vcomponents.
• Cast iron sheavesover3000AK/BKsizeandborecombinationsinstock,in-shaftreadybushingtypeandfinishedbore.
• Variablespeedsheavesthrough750HP,precisionbalancedtoprovidesmoothvibration-freeperformance.
B5V Sheaves
Variable Speed Sheaves VP, VL, VM
Cast Iron SheavesAK, 2AK, AKH, 2AKHBK, 2BK, BKH, 2BKH
“H” Bushing
78
CastIronSheaves
Sin
gle
Gro
ove
Sh
eave
sfo
r“4L
”o
r“A
”B
elts
“3L”
bel
tsm
aya
lso
beu
sed
with
thes
esh
eave
sas
indi
cate
din
tabl
ebe
low
.
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re
N
ote
-D
ono
tuse
thes
e“A
K”s
heav
esw
ithb
ores
1”a
ndu
nder
with
grip
notc
h™b
eltr
atin
gs.
AK
Part
N
o.
DIAMETE
RST
OC
K B
OR
ES M
AR
KED
“X”
Wt.
Lbs.
Outside
Datum
“A”
Pitch
“3L”
1/2”
5/8”
3/4”
7/8”
15/16”
1”11/8”
13/16”
11/4”
13/8”
17/16”
A
K17
A
K20
A
K21
A
K22
A
K23
A
K25
A
K26
A
K27
A
K28
A
K30
A
K32
A
K34
AK
39A
K41
AK
44A
K46
AK
49A
K51
AK
54A
K56
1.75”
2.00
2.10
2.20
2.30
2.50
2.60
2.70
2.80
3.05
3.25
3.45
3.75
3.95
4.25
4.45
4.75
4.95
5.25
5.45
1.50”
1.80
1.90
2.00
2.10
2.30
2.40
2.50
2.60
2.80
3.00
3.20
3.50
3.70
4.00
4.20
4.50
4.70
5.00
5.20
1.16”
1.46
1.56
1.66
1.76
1.96
2.06
2.16
2.26
2.46
2.66
2.86
3.16
3.36
3.66
3.86
4.16
4.36
4.66
4.86
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X X
- X X X X X X X X X X X X X X X X X X X
- - - - - - - - - X X X X X X X X X X X
- - - - - - - - - - - - X X X X X X X X
- - - - - - - - - - - - X X X X X X X X
- - - - - - - - - - - - - - X X X X X X
- - - - - - - - - - - - - - - - - - X X
- - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - -
.2 .3 .4 .5 .5 .5 .5 .6 .7 .7 .7 .9 1.4
1.5
1.5
1.5
1.7
1.7
1.8
1.9
79
CastIronSheaves
N
ote
-D
ono
tuse
thes
e“A
K”s
heav
esw
ithb
ores
1”a
ndu
nder
with
grip
notc
h™b
eltr
atin
gs.
Sin
gle
Gro
ove
Sh
eave
sfo
r“4L
”o
r“A
”B
elts
(co
nti
nu
ed)
“3L”
bel
tsm
aya
lso
beu
sed
with
thes
esh
eave
sas
indi
cate
din
tabl
ebe
low
.
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re(
con
tin
ued
)
AK
Part
N
o.
DIAMETE
RST
OC
K B
OR
ES M
AR
KED
“X”
Wt.
Lbs.
Outside
Datum
“A”
Pitch
“3L”
1/2”
5/8”
3/4”
7/8”
15/16”
1”11/8”
13/16”
11/4”
13/8”
17/16”
AK
59A
K61
AK
64A
K66
AK
69A
K71
A
K74
A
K79
A
K84
A
K89
A
K94
A
K99
A
K10
4
AK1
09
AK1
14
AK1
24A
K13
4A
K14
4A
K15
4A
K18
4
5.75
5.95
6.25
6.45
6.75
6.95
7.25
7.75
8.25
8.75
9.25
9.75
10.25
10.75
11.25
12.25
13.25
14.25
15.25
18.25
5.50
5.70
6.00
6.20
6.50
6.70
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
12.00
13.00
14.00
15.00
18.00
5.16
5.36
5.66
5.86
6.16
6.36
6.66
7.16
7.66
8.16
8.66
9.16
9.66
10.16
10.66
11.66
12.66
13.66
14.66
17.66
X X X - - - X - X - X - - - - - - - - -
X X X X - X X - X - X - X - - X - - - -
X X X X X X X X X X X X X X X X X X X X
X X X - - - - - - - - - - - - - - - - -
X X X - - - X - X - X - - - - - - - - -
X X X X X X X X X X X X X X X X X X X X
X X X X X X X X - X - - - - - - - - - -
X X X - - - X - X - X - X - - X - - - -
- - - - - - X - - - X - X - - X - - - -
- - - - - - - - - - - X X - - X - X -
- - - - - X X X X X X X X X X X X X X X
2.0
2.1
2.2
2.3
3.5
3.8
3.4
4.0
3.8
4.3
4.5
5.3
5.1
5.8
5.6
6.5
7.5
8.5
9.8
12.1
80
CastIronSheaves
Two
Gro
ove
Sh
eave
sfo
r“4L
”o
r“A
”B
elts
“3L”
bel
tsm
aya
lso
beu
sed
with
thes
esh
eave
sas
indi
cate
din
tabl
ebe
low
.
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re
2AK
Part
N
o.
DIAMETE
RST
OC
K B
OR
ES M
AR
KED
“X”
Wt.
Lbs.
Outside
Datum
“A”
Pitch
“3L”
1/2”
5/8”
3/4”
7/8”
15/16”
1”11/8”
13/16”
13/8”
17/16”
2AK
202A
K21
2AK
222A
K23
2AK
252A
K26
2AK
272A
K28
2AK
302A
K32
2AK
342A
K39
2AK
412A
K44
2AK
462A
K49
2.00”
2.15
2.25
2.35
2.55
2.65
2.75
2.85
3.05
3.25
3.45
3.75
3.95
4.25
4.45
4.75
1.80”
1.90
2.00
2.10
2.30
2.40
2.50
2.60
2.80
3.00
3.20
3.50
3.70
4.00
4.20
4.50
1.46”
1.56
1.66
1.76
1.96
2.06
2.16
2.26
2.46
2.66
2.86
3.16
3.36
3.66
3.86
4.16
X X X - - - - - X - - - - - - -
X X X X X X X X X X X X X X - -
X X X X X X X X X X X X X X - X
- - X X X X X X X X X X X X X X
- - - - - - - - - - - - - - - -
- - - X X X X X X X X X X X X X
- - - - - - - - X X X X X X X X
- - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - X
- - - - - - - - - - - - - - - -
.8 .9 .9 1.1
1.3
1.4.
1.5
1.8
1.8
2.1
2.3
2.6
2.9
3.0
3.1
3.6
81
CastIronSheaves
Two
Gro
ove
Sh
eave
sfo
r“4L
”o
r“A
”B
elts
(co
nti
nu
ed)
“3L”
bel
tsm
aya
lso
beu
sed
with
thes
esh
eave
sas
indi
cate
din
tabl
ebe
low
.
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re(
con
tin
ued
)
2AK
Part
N
o.
DIAMETE
RST
OC
K B
OR
ES M
AR
KED
“X”
Wt.
Lbs.
Outside
Datum
“A”
Pitch
“3L”
1/2”
5/8”
3/4”
7/8”
15/16”
1”11/8”
13/16”
13/8”
17/16”
2AK
512A
K54
2AK
562A
K59
2AK
612A
K64
2AK
742A
K84
2AK
942A
K10
42A
K11
42A
K12
42A
K13
42A
K14
42A
K15
42A
K18
4
4.95
5.25
5.45
5.75
5.95
6.25
7.25
8.25
9.25
10.25
11.25
12.25
13.25
14.25
15.25
18.25
4.70
5.00
5.20
5.50
5.70
6.00
7.00
8.00
9.00
10.00
11.00
12.00
13.00
14.00
15.00
18.00
4.36
4.66
4.86
5.16
5.36
5.66
6.66
7.66
8.66
9.66
10.66
11.66
12.66
13.66
14.66
17.66
- - - - - - - - - - - - - - -
- X X - - - - - - - - - - - - -
X X X - X X X X X X X X - - - -
X X - - X - - - - - - - - - - -
- - - - - - - X - X - - - - - -
X X X X X X X X X X X X - X - -
X X X X X X X X X - - - - - - -
- - - - - X X X X - X X X - X X
X X X X X X X X X - X - - - - -
- - - - - X X X X X X X X X X X
3.8
3.3
3.4
3.5
3.6
4.8
5.6
6.4
7.3
8.1
9.0
9.8
12.3
13.9
14.3
17.4
82
CastIronSheaves
SingleGrooveSheavesfor“4L”or“A”Belts“3L”beltsmaybeusedwiththesesheaves
asindicatedintablebelow.
Table1StockSizes-withSplitTaperBushings
Table2Stock“H”Bushings
Partnumbersarespecifiedby“H”andboresize.Example:“H-11/8”*Thesesizesarefurnishedwithspecialkeystofitstandarddepthkeyseats.
AKH
Part No.
DIAMETER Wt.LessBushO.D. Datum“A” Pitch“3L”
AK30HAK32HAK34HAK39HAK41HAK44HAK46HAK49HAK51HAK54HAK56HAK59HAK61HAK64HAK66HAK69HAK71HAK74HAK79HAK84HAK89HAK94HAK99HAK104HAK109HAK114HAK124HAK134HAK144HAK154HAK184H
3.05”3.253.453.753.954.254.454.754.955.255.455.755.956.256.456.756.957.257.758.258.759.259.7510.2510.7511.2512.2513.2514.2515.2518.25
2.80”3.003.203.503.704.004.204.504.705.005.205.505.706.006.206.506.707.007.508.008.509.009.5010.0010.5011.0012.0013.0014.0015.0018.00
2.46”2.662.863.163.363.663.864.164.364.664.865.165.365.665.866.166.366.667.167.668.168.669.169.6610.1610.6611.6612.6613.6614.6617.66
1.11.21.01.41.61.91.92.12.32.02.32.42.52.72.83.23.13.33.53.64.04.44.74.55.15.56.17.47.88.811.3
Inch Bore Millimeter Bore Stock Spline BoresStock Bores Keyseat Stock Bores Keyseat Stock Bores Keyseat3/8”,7/161/2,9/16
5/8,11/16,3/413/16,7/8,15/16
1,111/1611/8,13/16
11/415/16,13/8
13/8,17/16,11/2
None1/8”x1/16”3/16x3/323/16x3/321/4x1/81/4x1/81/4x1/16*5/16x1/16*3/8x1/16*
10mm11,121416
18,19,20,2224,25,28,3032,35,36,38
NoneNone
5mmx2.5mm5x2.56x38x3.510x4
.978-10Inv.11/8-6B13/8-6B
13/8-21Inv.
XXXX
83
CastIronSheaves
TwoGrooveSheavesfor“4L”or“A”Belts(continued)“3L”beltsmaybeusedwiththesesheaves
asindicatedintablebelow.
Table1StockSizes-withSplitTaperBushings
Table2Stock“H”Bushings
Partnumbersarespecifiedby“H”andboresize.Example:“H-11/8”*Thesesizesarefurnishedwithspecialkeystofitstandarddepthkeyseats.
2AKH
Inch Bore Millimeter Bore Stock Spline BoresStock Bores Keyseat Stock Bores Keyseat Stock Bores Keyseat3/8”,7/161/2,9/16
5/8,11/16,3/413/16,7/8
15/16,1,111/1611/8,13/16
11/415/16,13/8
13/8,17/16,11/2
None1/8”x1/16”3/16x3/323/16x3/321/4x1/81/4x1/81/4x1/16*5/16x1/16*3/8x1/16*
10mm11,1214,16
18,19,20,2224,25,28,3032,35,36,38
NoneNone
5mmx2.5mm6x38x3.510x4
.978-10Inv.11/8-6B13/8-6B
13/8-21Inv.
XXXX
Part No.
DIAMETER Wt.LessBushO.D. Datum“A” Pitch“3L”
2AK30H2AK32H2AK34H2AK39H4AK41H2AK44H2AK46H2AK49H2AK51H2AK54H2AK56H2AK59H2AK61H2AK64H2AK74H2AK84H2AK94H2AK104H2AK114H2AK124H2AK134H2AK144H2AK154H2AK184H
3.05”3.253.453.753.954.254.454.754.955.255.455.755.956.257.258.259.2510.2511.2512.2513.2514.2515.2518.25
2.80”3.003.203.503.704.004.204.504.705.005.205.505.706.007.008.009.0010.0011.0012.0013.0014.0015.0018.00
2.46”2.662.863.163.363.663.864.164.364.664.865.165.365.666.667.668.669.6610.6611.6612.6613.6614.6617.66
1.41.71.81.81.92.42.53.13.23.43.63.43.33.94.95.86.17.78.59.511.411.913.316.8
84
CastIronSheaves
Sin
gle
Gro
ove
Sh
eave
sC
om
bin
atio
nG
roov
efo
r“4L
”o
r“A
”B
elts
an
d“
5L”
or
B”
Bel
ts
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re
N
ote
-D
ono
tuse
thes
e“B
K”s
heav
esw
ith“
B”g
ripno
tch™
bel
trat
ings
.
BK
Part
N
o.
DIAMETE
RST
OC
K B
OR
ES M
AR
KED
“X”
Wt.Lbs.
Outside
Datum
“A”
Datum
“B”
1/2”
5/8”
3/4”
7/8”
15/16”
1”11/8”
13/16”
11/4”
13/8”
17/16”
B
K24
B
K25
B
K26
B
K27
B
K28
B
K30
B
K32
BK
34B
K36
BK
40B
K45
BK
47B
K50
BK
52B
K55
BK
57B
K60
BK
62B
K65
2.40”
2.50
2.60
2.70
2.95
3.15
3.35
3.55
3.75
3.95
4.25
4.45
4.75
4.95
5.25
5.45
5.75
5.95
6.25
1.80”
1.90
2.00
2.10
2.20
2.40
2.60
2.80
3.00
3.20
3.50
3.70
4.00
4.20
4.50
4.70
5.00
5.20
5.50
2.20”
2.30
2.40
2.50
2.60
2.80
3.00
3.20
3.40
3.60
3.90
4.10
4.40
4.60
4.90
5.10
5.40
5.60
5.90
X X X X X X X X X X X X X X X - X X -
X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X -
- - - - - - - - - - - - X - - X - X -
- - - - - - - X X X X X X X X X X X X
- - - - - - - X X X X X X X X X X X X
- - - - - - - - - - - - - - X - X X -
- - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
.4 .5 .6 .6 .8 .8 .8 1.3
1.5
1.5
1.8
1.9
2.0
2.0
2.2
2.3
2.3
2.4
2.7
85
CastIronSheaves
Sin
gle
Gro
ove
Sh
eave
s(c
on
tin
ued
)C
om
bin
atio
nG
roov
efo
r“4L
”o
r“A
”B
elts
an
d“
5L”
or
B”
Bel
ts
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re(
con
tin
ued
)
N
ote
-D
ono
tuse
thes
e“B
K”s
heav
esw
ith“
B”g
ripno
tch™
bel
trat
ings
.
BK
Part
N
o.
DIAMETE
RST
OC
K B
OR
ES M
AR
KED
“X”
Wt.Lbs.
Outside
Datum
“A”
Datum
“B”
1/2”
5/8”
3/4”
7/8”
15/16”
1”11/8”
13/16”
11/4”
13/8”
17/16”
BK
67B
K70
BK
72B
K75
BK
77B
K80
BK
85B
K90
BK
95B
K10
0B
K10
5B
K11
0B
K11
5B
K12
0B
K13
0B
K14
0B
K16
0B
K19
0
6.45
6.75
6.95
7.25
7.45
7.75
8.25
8.75
9.25
9.75
10.25
10.75
11.25
11.75
12.75
13.75
15.75
18.75
5.70
6.00
6.20
6.50
6.70
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
12.00
13.00
15.00
18.00
6.10
6.40
6.60
6.80
7.10
7.40
7.90
8.40
8.90
9.40
9.90
10.40
10.90
11.40
12.40
13.40
15.40
18.40
- - - - - - - - - - - - - - - - - -
X X - - - X - - - - - - - - - - - -
X X X X X X X X X X - X - X X X - -
- - - - - X - X - X - - - - - - - -
- X - - - - - X - X - - - - - - - -
X X X X X X X X X X X X X X X X X X
X X X X X X X X X X - X - - X - X -
- X - - - X - X - X - X - X X X X X
- - - - - X - - - X - - - - X - X X
- - X X X X X X X X X X X X - - - -
- X - - - X X X X X X X X X X X X X
2.8
3.3
3.9
3.9
4.1
4.4
5.0
5.0
5.4
5.6
5.8
6.4
6.9
7.4
8.4
9.4
11.4
13.4
86
CastIronSheaves
Two
Gro
ove
Sh
eave
sC
om
bin
atio
nG
roov
efo
r“4L
”o
r“A
”B
elts
an
d“
5L”
or
B”
Bel
ts
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re
2BK
Part
N
o.DIAMETE
RS
STO
CK
BO
RES
MA
RK
ED “
X”Wt.Lbs.
Outside
Datum
A”
Datum
B”
1/2”
5/8”
3/4”
7/8”
1”11/8”
13/16”
13/8”
17/16”
2BK
252B
K27
2BK
282B
K30
2BK
322B
K34
2BK
362B
K40
2BK
452B
K47
2BK
502B
K52
2BK
552B
K57
2BK
602B
K62
2BK
652B
K67
2BK
702B
K80
2BK
902B
K10
02B
K11
02B
K12
02B
K13
02B
K14
02B
K16
02B
K19
0
2.50”
2.70
2.95
3.15
3.35
3.55
3.75
3.95
4.25
4.45
4.75
4.95
5.25
5.45
5.75
5.95
6.25
6.45
6.75
7.75
8.75
5.95
10.75
11.75
12.75
13.75
15.75
18.75
1.90”
2.10
2.20
2.40
2.60
2.80
3.00
3.20
3.50
3.70
4.00
4.20
4.50
4.70
5.00
5.20
5.50
5.70
6.00
7.00
8.00
5.70
10.00
11.00
12.00
13.00
15.00
18.00
2.30”
2.50
2.60
2.80
3.00
3.20
3.40
3.60
3.90
4.10
4.40
4.60
4.90
5.10
5.40
5.60
5.90
6.10
6.40
7.40
8.40 8.4
10.40
11.40
12.40
13.40
15.40
18.40
X X X X - - - - - - - - - - - - - - - - - - - - - - -
X X X X X X - X - - - - - - - - - - - - - - - - - - - -
X X X X - X X X - - X - - - X - - - X X X X - - - - - -
X X X X X X X X - X - X - - X - - - - - - X - - - - - -
- X X X X X X X X X X X - X X X X X X X X - X X X X X -
- - X X X X X X X X X X X X X X X X X X X X - - - - - -
- - - - - - - - - - - - - - - - - - X X X X X X X X X X
- - - - - X - X - X X X X X X X X X X X - - - - - -
- - - - - - - - - - - - - - - - - - X X X - X X X X X X
1.3
1.6
1.9
2.3
2.6
2.8
3.3
3.3
3.3
3.7
4.1
4.5
4.5
5.1
4.9
4.8
5.0
5.0
6.6
7.2
8.4
9.4
10.4
11.8
14.9
16.3
18.0
23.3
87
CastIronSheaves
SingleGrooveSheavesCombinationGroove
for“4L”or“A”Beltsand“5L”orB”Belts
Table2Stock“H”Bushings
Partnumbersarespecifiedby“H”andboresize.Example:“H-11/8”*Thesesizesarefurnishedwithspecialkeystofitstandarddepthkeyseats.
Table1StockSizes-withSplitTaperBushings
BKH
Part No.
DIAMETER Wt.Lbs.LessBush.O.D. Datum“A” Datum“B”
BK30HBK32HBK34HBK36HBK40HBK45HBK47HBK50HBK52HBK55HBK57HBK60HBK62HBK65HBK67HBK70HBK72HBK75HBK77HBK80HBK85HBK90HBK95HBK100HBK105HBK110HBK115HBK120HBK130HBK140HBK150HBK160HBK190H
3.15”3.353.553.753.954.254.454.754.955.255.455.755.956.256.456.756.957.257.457.758.258.759.259.7510.2510.7511.2511.7512.7513.7514.7515.7518.75
2.40”2.602.803.003.203.503.704.004.204.504.705.005.205.505.706.006.206.506.707.007.508.008.509.009.5010.0010.5011.0012.0013.0014.0015.0018.00
2.80”3.003.203.403.603.904.104.404.604.905.105.405.605.906.106.406.606.907.107.407.908.408.909.409.9010.4010.9011.4012.4013.4014.4015.4018.40
1.21.41.61.21.41.82.22.02.12.72.72.52.62.82.92.83.13.33.83.43.84.35.05.25.56.06.46.96.98.59.59.812.8
Inch Bore Millimeter Bore Stock Spline BoresStock Bores Keyseat Stock Bores Keyseat Stock Bores Keyseat3/8”,7/161/2,9/16
5/8,11/16,3/413/16,7/8
15/16,1,111/1611/8,13/16
11/415/16,13/8
13/8,17/16,11/2
None1/8”x1/16”3/16x3/323/16x3/321/4x1/81/4x1/81/4x1/16*5/16x1/16*3/8x1/16*
10mm11,1214,16
18,19,20,2224,25,28,3032,35,36,38
NoneNone
5mmx2.5mm6x38x3.510x4
.978-10Inv.11/8-6B13/8-6B
13/8-21Inv.
XXXX
88
CastIronSheaves
TwoGrooveSheavesCombinationGroove
for“4L”or“A”Beltsand“5L”orB”Belts
Table2Stock“H”Bushings
Partnumbersarespecifiedby“H”andboresize.Example:“H-11/8”*Thesesizesarefurnishedwithspecialkeystofitstandarddepthkeyseats.
Table1StockSizes-withSplitTaperBushings
2BKH
Part No.
DIAMETER Wt.Lbs.O.D. Datum“A” Datum“B” LessBush.
2BK32H2BK34H2BK36H2BK40H2BK45H2BK47H2BK50H2BK52H2BK55H2BK57H2BK60H2BK62H2BK65H2BK67H2BK70H2BK80H2BK90H2BK100H2BK110H2BK120H2BK130H2BK140H2BK160H2BK190H
3.35”3.553.753.954.254.454.754.955.255.455.755.956.256.456.757.758.759.7510.7511.7512.7513.7515.7518.75
2.60”2.803.003.203.503.704.004.204.504.705.005.205.505.706.007.008.009.0010.0011.0012.0013.0015.0018.00
3.00”3.203.403.603.904.104.404.604.905t.105.405.605.906.106.407.408.409.4010.4011.4012.4013.4015.4018.40
2.12.42.02.43.02.83.33.63.94.34.44.54.55.05.16.47.68.49.311.013.114.817.521.5
Inch Bore Millimeter Bore Stock Spline BoresStock Bores Keyseat Stock Bores Keyseat Stock Bores Keyseat3/8”,7/161/2,9/16
5/8,11/16,3/413/16,7/8
15/16,1,111/1611/8,13/16
11/415/16,13/8
13/8,17/16,11/2
None1/8”x1/16”3/16x3/323/16x3/321/4x1/81/4x1/81/4x1/16*5/16x1/16*3/8x1/16*
10mm11,1214,16
18,19,20,2224,25,28,3032,35,36,38
NoneNone
5mmx2.5mm6x38x3.510x4
.978-10Inv.11/8-6B13/8-6B
13/8-21Inv.
XXXX
89
StockSheaveInterchange
Sheavesfor“4L”,“A”,“5L”orB”Belts
*MaureyisatrademarkofMaureyManufacturingCorporation.*TBWood’sisatrademarkofTBWood’sIncorporated.*DodgeisatrademarkofRelianceElectricCompany.*MaskaisatrademarkofMaskaInc.Thesetradenames,trademarksand/orregisteredtrademarksofothersareusedhereinforproductcomparisonpurposesonly,arethepropertyoftheirrespectiveownerandarenotownedorcontrolledbyEmersonPowerTransmissionCorporation.EmersonPowerTransmissiondoesnotrepresentorwarranttheaccuracyofthisdocument.
4LorA
5LorB
BrowningOther Manufacturers
Maurey* T. B.Wood’s* Dodge* Maska*
2.42.62.83.03.2
2.83.03.23.43.6
BK30HBK32HBK34HBK36HBK40H
----
BH40
HB31QTHB33QTHB35QTHB37QTHB39QT
BK30HBK32HBK34HBK36HBK40H
MBL31MBL33MBL35MBL37MBL39
3.53.7-4.24.5
3.94.1-4.64.9
BK45HBK47HBK49HBK52HBK55H
BH42BH44BH48BH50BH52
HB42QTHB44QTHB47QTHB49QTHB52QT
BK45HBK47HBK49HBK52HBK55H
MBL42MBL44MBL47MBL49MBL52
4.75.05.25.55.7
5.15.45.65.96.1
BK57HBK60HBK62HBK65HBK67H
BH54BH58BH60BH66BH68
HB54QTHB57QTHB59QTHB62QTHB64QT
BK57HBK60HBK62HBK65HBK67H
MBL54MBL57MBL59MBL62MBL64
6.06.26.56.77.0
6.46.66.97.17.4
BK70HBK72HBK75HBK77HBK80H
BH70BH72
--
BH78
HB67QTHB69QTHB72QTHB74QTHB77QT
BK70HBK72HBK75HBK77HBK80H
MBL67MBL69MBL72MBL74MBL77
7.58.08.59.09.5
7.98.48.99.49.9
BK85HBK90HBK95HBK100HBK105H
---
BH98-
HB82QTHB87QTHB92QTHB97QTHB102QT
BK85HBK90HBK95HBK100HBK105H
MBL82MBL87MBL92MBL97MBL102
10.010.516.012.013.0
10.410.911.412.413.4
BK110HBK115HBK120HBK130HBK140H
BH108-
BH118BH128
-
HB107QTHB112QTHB117QTHB127QTHB137QT
BK110HBK115HBK120HBK130HBK140H
MBL107MBL112MBL117MBL127MBL137
15.018.0
15.418.4
BK160HBK190H
BH158BH188
HB157QTHB187QT
BK160HBK190H
MBL157MBL187
90
Gripbelt®SheaveswithSplitTaperBushings
Sp
ecifi
cati
on
s-
Sto
ck“
B5V
®”
Sh
eave
s
Part
Num
ber
DIAMETE
RS
Wt.(lbs.)
LessBush.
Shea
veB
ushi
ngDatum
“A”B
elts
Datum
“B”B
elts
Pitch“5V”B
elts
Outside
1 G
RO
OVE
, F =
11B
5V42
1B5V
441B
5V46
1B5V
481B
5V50
1B5V
521B
5V54
1B5V
561B
5V58
1B5V
601B
5V62
1B5V
641B
5V66
1B5V
681B
5V70
1B5V
741B
5V80
1B5V
861B
5V90
1B5V
941B
5V11
01B
5V12
41B
5V13
61B
5V15
41B
5V16
01B
5V18
41B
5V20
01B
5V23
41B
5V25
01B
5V27
8
P1 P1 B B B B B B B B B B B B B B B B B B B B B B B B B B B B
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
7.0
7.6
8.2
8.6
9.0
10.6
12.0
13.2
15.0
15.6
18.0
19.5
22.9
24.5
27.3
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
6.8
7.0
7.4
8.0
8.6
9.0
9.4
11.0
12.4
13.6
15.4
16.0
18.4
20.0
23.4
25.0
27.8
4.3
4.5
4.7
4.9
5.1
5.3
5.5
5.7
5.9
6.1
6.3
6.5
6.7
6.9
7.1
7.5
8.1
8.7
9.1
9.5
11.1
12.5
13.7
15.5
16.1
18.5
20.1
23.5
25.1
27.9
4.48
4.68
4.88
5.08
5.28
5.48
5.68
5.88
6.08
6.28
6.48
6.68
6.88
7.08
7.28
7.68
8.28
8.88
9.28
9.68
11.28
12.68
13.88
15.68
16.28
18.68
20.28
23.68
25.28
28.08
2.5
2.8
2.5
2.9
3.3
3.7
4.1
4.5
5.0
5.4
5.3
5.6
6.0
6.4
6.8
7.7
7.5
7.9
8.2
8.5
10.3
11.5
13.3
15.5
16.6
20.0
21.8
28.2
31.4
36.5
91
Gripbelt®SheaveswithSplitTaperBushings
Sp
ecifi
cati
on
s-
Sto
ck“
B5V
®”
Sh
eave
s-
con
tin
ued
Part
Num
ber
DIAMETE
RS
Wt.(lbs.)
LessBush.
Shea
veB
ushi
ngDatum
“A”B
elts
Datum
“B”B
elts
Pitch“5V”B
eltsI
Outside
2 G
RO
OVE
, F =
1 2
3/32
2B5V
42
2B5V
44
2B5V
46
2B5V
48
2B5V
50
2B5V
52
2B5V
54
2B5V
56
2B5V
58
2B5V
60
2B5V
62
2B5V
64
2B5V
66
2B5V
68
2B5V
70
2B5V
74
2B5V
80
2B5V
86
2B5V
90
2B5V
94
2B5V
110
2B5V
124
2B5V
136
2B5V
154
2B5V
160
2B5V
184
2B5V
200
2B5V
234
2B5V
250
2B5V
278
P1
P1
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
7.0
7.6
8.2
8.6
9.0
10.6
12.0
13.2
15.0
15.6
18.0
19.5
22.9
24.5
27.3
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
6.8
7.0
7.4
8.0
8.6
9.0
9.4
11.0
12.4
13.6
15.4
16.0
18.4
20.0
23.4
25.0
27.8
4.3
4.5
4.7
4.9
5.1
5.3
5.5
5.7
5.9
6.1
6.3
6.5
6.7
6.9
7.1
7.5
8.1
8.7
9.1
9.5
11.1
12.5
13.7
15.5
16.1
18.5
20.1
23.5
25.1
27.9
4.48
4.68
4.88
5.08
5.28
5.48
5.68
5.88
6.08
6.28
6.48
6.68
6.88
7.08
7.28
7.68
8.28
8.88
9.28
9.68
11.28
12.68
13.88
15.68
16.28
18.68
20.28
23.68
25.28
28.08
3.7
4.1
3.3
3.9
4.6
5.3
6.0
6.7
7.4
8.2
9.2
8.4
11.4
10.2
12.3
14.2
11.3
10.6
11.1
11.6
14.4
17.1
19.3
23.2
24.2
33.2
34.8
37.9
47.0
55.9
92
Gripbelt®SheaveswithSplitTaperBushings
Sp
ecifi
cati
on
s-
Sto
ck“
B5V
®”
Sh
eave
s-
con
tin
ued
Part
Num
ber
Diameters
Wt.(lbs.)
LessBush.
Shea
veB
ushi
ngDatum
“A”B
elts
Datum
“B”B
elts
Pitch“5V”B
elts
Outside
3 G
RO
OVE
, F =
27/
163B
5V42
3B
5V44
3B
5V46
3B
5V48
3B
5V50
3B
5V52
3B
5V54
3B
5V56
3B
5V58
3B
5V60
3B
5V62
3B
5V64
3B
5V66
3B
5V68
3B
5V70
3B
5V74
3B
5V80
3B
5V86
3B
5V90
3B
5V94
3B
5V11
0 3B
5V12
4 3B
5V13
6 3B
5V15
4 3B
5V16
0 3B
5V18
4 3B
5V20
0 3B
5V23
4 3B
5V25
0 3B
5V27
8
P1
P1
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
7.0
7.6
8.2
8.6
9.0
10.6
12.0
13.2
15.0
15.6
18.0
19.5
22.9
24.5
27.3
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
6.8
7.0
7.4
8.0
8.6
9.0
9.4
11.0
12.4
13.6
15.4
16.0
18.4
20.0
23.4
25.0
27.8
4.3
4.5
4.7
4.9
5.1
5.3
5.5
5.7
5.9
6.1
6.3
6.5
6.7
6.9
7.1
7.5
8.1
8.7
9.1
9.5
11.1
12.5
13.7
15.5
16.1
18.5
20.1
23.5
25.1
27.9
4.48
4.68
4.88
5.08
5.28
5.48
5.68
5.88
6.08
6.28
6.48
6.68
6.88
7.08
7.28
7.68
8.28
8.88
9.28
9.68
11.28
12.68
13.88
15.68
16.28
18.68
20.28
23.68
25.28
28.08
4.8
5.2
4.9
5.5
6.1
6.7
7.4
8.4
9.5
10.6
9.8
10.5
10.4
10.9
11.5
12.6
14.2
13.7
14.5
17.0
19.8
22.1
24.9
30.4
31.7
40.9
47.6
61.5
66.6
79.1
93
Gripbelt®SheaveswithSplitTaperBushings
Sp
ecifi
cati
on
s-
Sto
ck“
B5V
®”
Sh
eave
s-
con
tin
ued
Part
Num
ber
DIAMETE
RS
Wt.(lbs.)
LessBush.
Shea
veB
ushi
ngDatum
“A”B
elts
Datum
“B”B
elts
Pitch“5V”B
elts
Outside
4 G
RO
OVE
, F =
3 5
/32
4B5V
42
4B5V
44
4B5V
46
4B5V
48
4B5V
50
4B5V
52
4B5V
54
4B5V
56
4B5V
58
4B5V
60
4B5V
62
4B5V
64
4B5V
66
4B5V
68
4B5V
70
4B5V
74
4B5V
80
4B5V
86
4B5V
90
4B5V
94
4B5V
110
4B5V
124
4B5V
136
4B5V
154
4B5V
160
4B5V
184
4B5V
200
4B5V
234
4B5V
250
4B5V
278
P1
P1
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
7.0
7.6
8.2
8.6
9.0
10.6
12.0
13.2
15.0
15.6
18.0
19.5
22.9
24.5
27.3
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
6.8
7.0
7.4
8.0
8.6
9.0
9.4
11.0
12.4
13.6
15.4
16.0
18.4
20.0
23.4
25.0
27.8
4.3
4.5
4.7
4.9
5.1
5.3
5.5
5.7
5.9
6.1
6.3
6.5
6.7
6.9
7.1
7.5
8.1
8.7
9.1
9.5
11.1
12.5
13.7
15.5
16.1
18.5
20.1
23.5
25.1
27.9
4.48
4.68
4.88
5.08
5.28
5.48
5.68
5.88
6.08
6.28
6.48
6.68
6.88
7.08
7.28
7.68
8.28
8.88
9.28
9.68
11.28
12.68
13.88
15.68
16.28
18.68
20.28
23.68
25.28
28.08
5.9
6.3
6.1
6.7
7.4
8.0
8.9
9.5
10.3
11.0
11.3
12.1
12.0
12.6
13.2
14.5
15.2
16.6
17.6
20.0
22.8
26.5
30.7
37.9
40.5
50.7
58.5
73.9
83.8
94.3
94
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re(
inch
es)
VariablePitchCastIronSheaves
Sin
gle
Gro
ove
Var
iab
leP
itch
Sh
eave
sfo
r“3
L”,“
4L”,
“5L
”,“
A”,
“B
”,a
nd
“5V
”B
elts
1VP
Part
No.
OZ.
Stoc
k B
ores
Mar
ked
”x”
WL
Lbs.
1/2
5/8
3/4
7/8
11
1/8
1 1/
41
3/8
1 5/
81V
P25
1P30
1VP3
41P
401V
P44
2.50
2.87
3.15
375
4.15
- x x x x
- x x x x
- x x x x
- - x x -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
0.8
0.9
1.2
17 1.9
1VP4
4
1VP5
0
1VP5
0
1VP5
6
1VP5
6
4.15
475
475
5.35
5.35
- x - x -
- x - x -
- x - x -
x - x - x
x - x - x
x - x - x
- - - - -
- - - - -
- - - - -
2.6
1.9
2.9
27 3.4
1VP6
0
1VP6
2
1VP6
5
1VP6
8
1VP7
1
1VP7
5
6.00
5.95
6.50
6.55
7.10
7.50
- - - - - -
- x - x - -
x x x x x x
x x x x x x
- x - x - -
x x x x x x
- x - x - -
x x x x x x
x - x -* x x
5.5
57 5.8
6.4
6.8
7.3
95
VariablePitchCastIronSheaves
Sin
gle
Gro
ove
Var
iab
leP
itch
Sh
eave
sfo
r“3
L”,“
4L”,
“5L
”,“
A”,
“B
”,a
nd
“5V
”B
elts
Tab
le2
1VP
Part
No.
DIA
MET
ER R
AN
GE
“3L”
BEL
TS“4
L” o
r “A
” B
ELTS
“5L”
OR
“B
” B
ELTS
“5V”
BEL
TSM
in.
Turn
sM
ax.
Turn
sM
in.
Turn
sM
ax.
Turn
sM
in.
Turn
sM
ax.
Turn
sM
in.
Turn
sM
ax.
Turn
sPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
n1V
P25
1VP3
01V
P34
1VP4
01V
P44
1.6
1.8
1.7
2.3
2.7
4 4 4 4 4
2.4
2.7
2.5
3.1
3.5
0 0 0 0 0
- - 2.0
2.6
3.0
- - 5 5 5
- - 3.0
3.6
4.0
- - 0 0 0
- - 2.5
2.8
3.2
- - 5 6 6
- - 3.3
3.8
4.2
- - 1 1 1
- - - - -
- - - - -
- - - - -
- - - - -1V
P44
1VP5
01V
P50
1VP5
61V
P56
2.7
3.3
3.3
3.9
3.9
4 4 4 4 4
3.5
4.1
4.1
4.7
4.7
0 0 0 0 0
3.0
3.6
3.6
4.2
4.2
5 5 5 5 5
4.0
4.6
4.6
5.2
5.2
0 0 0 0 0
3.2
3.8
3.8
4.4
4.4
6 6 6 6 6
4.2
4.8
4.8
5.4
5.4
1 1 1 1 1
- - - - -
- - - - -
- - - - -
- - - - -1V
P60
1VP6
21V
P65
1VP6
81V
P71
1VP7
5
- - - - - -
- - - - - -
- - - - - -
- - - - - -
4.4
4.4
4.9
4.9
5.5
5.9
5 5 5 5 5 5
5.4
5.4
5.9
5.9
6.5
6.9
0 0 0 0 0 0
4.7
4.7
5.2
5.2
5.8
6.2
6 6 6 6 6 6
5.9
5.9
6.4
6.4
7.0
7.4
0 0 0 0 0 0
4.7
4.7
5.2
5.2
5.8
6.2
- 6 6 6 6 6
5.9
5.9
6.4
6.4
7.0
7.4
- 0 0 0 0 0
96
Tab
le1
Sto
ckS
izes
-F
inis
hed
Bo
re(
inch
es)
Two
Gro
ove
Var
iab
leP
itch
Sh
eave
sfo
r“3
L”,“
4L”,
“5L
”,“
A”,
“B
”,a
nd
“5V
”B
elts
VariablePitchCastIronSheaves
2VP
Part
No.
O.D
.St
ock
Bor
es M
arke
d “x
”W
t.Lb
s.1/
25/
83/
471
81
11/8
1114
1 3/
815
/52V
P36
2VP4
22V
P50
2VP5
62V
P60
3.35
3.95
4.75
5.35
6.00
x - - - -
x x x x -
x x x x x
x x x x x
- x x x -
- x x x x
- - - - -
- - - - x
- - - - x
2.6
3.5
5.4
6.6
10.2
2VP6
22V
P65
2VP6
82V
P71
2VP7
5
5.95
6.50
6.55
7.10
7.50
- - - - -
- - - - -
x x - x x
x x x x x
x - x - -
x x x x x
x - x - -
x x x x x
- x - x x
10.5
11.6
12.3
13.4
15.5
97
Tab
le2
Two
Gro
ove
Var
iab
leP
itch
Sh
eave
sfo
r“3
L”,“
4L”,
“5L
”,“
A”,
“B
”,a
nd
“5V
”B
elts
VariablePitchCastIronSheaves
2VP
Part
No.
DIA
MET
ER R
AN
GE
“3L”
BEL
TS“4
L” o
r “A
” B
ELTS
“5L”
OR
‘ B
” B
ELTS
“5V”
BEL
TSM
in.
Turn
sM
ax.
Turn
sM
in.
Turn
sM
ax.
Turn
sM
in.
Turn
sM
ax.
Turn
sM
in.
Turn
sM
ax.
Turn
sPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
nPi
tch
Ope
n2V
P36
2VP4
22V
P50
2VP5
62V
P60
1.9
2.5
3.3
3.9 -
4 4 4 4 -
2.7
3.3
4.1
4.7 -
0 0 0 0 -
2.2
2.8
3.6
4.2
4.4
5 5 5 5 5
3.2
3.8
4.6
5.2
5.4
0 0 0 0 0
2.6
3.0
3.8
4.4
4.7
5 6 6 6 6
3.4
4.0
4.8
5.4
5.9
1 1 1 1 0
- - - - 4.7
- - - - -
- - - - 5.9
- - - - -2V
P62
2VP6
52V
P68
2VP7
12V
P75
- - - - -
- - - - -
- - - - -
- - - - -
4.4
4.9
4.9
5.5
5.9
5 5 5 5 5
5.4
5.9
5.9
6.5
6.9
0 0 0 0 0
4.7
5.2
5.2
5.8
6.2
6 6 6 6 6
5.9
6.4
6.4
7.0
7.4
1 0 1 0 0
4.7
5.2
5.2
5.8
6.2
6 6 6 6 6
5.9
6.4
6.4
7.0
7.4
0 0 0 0 0A
ll fit
ted
with
hol
low
hea
d se
tscr
ews
Any
sta
ndar
d tw
o gr
oove
Bro
wni
ng s
heav
e ca
n be
use
d as
a c
ompa
nion
she
ave.
98
Tab
le1
Sto
ck“
VL”
an
d“
VM
”V
aria
ble
Pit
chS
hea
ves
Tab
le2
VariablePitchCastIronSheaves
VL,VM
Part
N
o.
DIA
MET
ER R
AN
GE
“3L”
BEL
TS“4
L” o
r “A
” B
ELTS
“5L”
OR
“B
” B
ELTS
Min
. Pi
tch
Turn
s O
pen
Max
. Pi
tch
Turn
s O
pen
Min
. Pi
tch
Turn
s O
pen
Max
. Pi
tch
Turn
s O
pen
Min
. Pi
tch
Turn
s O
pen
Max
. Pi
tch
Turn
s O
pen
1VL2
5 1V
L30
1VL3
4 1V
L40
1VL4
4 1V
M50
1.6
1.8
1.7
2.3
2.7
3.3
4 4 4 4 4 4
2.4
2.7
2.5
3.1
3.5
4.1
0 0 0 0 0 0
- - 2.0
2.6
3.0
3.6
- - 5 5 5 5
- - 3.0
3.6
4.0
4.6
- - 0 0 0 0
- - 2.5
2.8
3.2
3.8
- - 5 6 6 6
- - 3.3
3.8
4.2
4.8
- - 1 1 1 1
Part
N
o.O
.D.
Stoc
k B
ores
Mar
ked
“x”
Wt.
Lbs.
1/2
5/8
3/4
7/8
1VL2
52.50
xx
--
-1V
L30
2.87
xx
--
0.9
1VL3
43.15
xx
x-
1.2
1VL4
03.75
xx
xx
1.7
1VL4
44.15
xx
xx
1.9
1VM
504.75
xx
xx
1.9
99
SplitTaperBushings
BushingSpecifications
R1-11/8,R1-13/16,R2-13/8,S1-111/16,S1-13/4,andS2-17/8"to21/8"bushingsaresteel.U0andU1-23/8"to33/16"andU2-27/16"to33/16"arecastiron.“W”and“Y”bushingsarecastiron.Allotherbushingsonthispageareeithersinteredsteel,malleableironorductileiron.
Contactfactoryforclarification.
Note:TaperonallBrowningbushingsis3/4"perfootondiameter.
*Ybushingsaremade-to-order.
Bushings
PartNo.
Dimensions BoreRange CapScrewsAv.WtLbs..
WrenchTorqueIn-Lbs.
DType1 Type2 No. SizeLarge
EndSmallEnd
G 1.172” 1.133” 3/8”-15/16 1 2 1/4x5/8 0.5 95H 1.625 1.570 3/8-13/8 17/16-11/2 2 1/4x3/4 0.8 95P1 1.938 1.856 1/2-17/16 11/2-13/4 3 5/16x1 1.3 192P2 1.938 1.793 3/4-17/16 11/2-13/4 3 5/16x1 1.5 192P3 1.938 1.699 11/8-13/8 15/8 3 5/16x1 2 192B 2.625 2.557 1/2-115/16 2/27/1916 3 5/16x11/4 1.8 192
Q1 2.875 2.766 3/4-21/16 21/8-211/16 3 3/8x11/4 3.5 348Q2 2.875 2.703 1/21/1916 21/8-25/8 3 3/8x11/4 4.5 348Q3 2.875 2.609 13/8-1/16 21/8-21/2 3 3/8x11/4 5.5 348R1 2.875 3.875 11/8-213/16 27/8-33/4 3 3/8x13/4 7.5 348R2 4.000 3.750 13/8-213/16 27/8-35/8 3 3/8x13/4 11 348S1 4.000 4.418 111/16-33/16 31/4-41/4 3 1/2x21/4 13.5 840S2 4.625 4.270 17/16-33/16 31/4-43/16 3 1/2x21/4 19 840UO 4.625 5.766 23/8-31/16 3 5/8x23/4 30 1680UO 6.000 5.766 31/4-41/4 43/8-51/2 3 5/8x23/4 27 1680U1 6.000 5.649 23/8-41/4 43/8-51/2 3 5/8x23/4 40 1680U2 6.000 5.461 27/16-41/4 43/8-5 3 5/8x23/4 50 1680W1 6.000 8.102 33/8-63/16 61/4-77/16 4 3/4x3 104 3000W2 8.500 7.914 33/8-63/16 61/4-77/16 4 3/4x3 133 3000Y0* 8.500 11.469 6-715/16 8-0 4 1x5 270 7200
100
BearingsAir Handling Solutions
1000/1100 SeriesSpherical Roller Bearing
22500 SeriesSpherical Roller Bearing
RubberMountedBearing
MountedBallBearing
StampedSteelBearing
101
Index Page
MountedBallBearings .........................................102
MountedRollerBearings ......................................103
StampedSteel/RubberMountBearings ...............104
AirHandlingApplications ......................................105
AirHandlingSolutions ................................ 106 - 107
LockingSolutions ....................................... 108 - 109
MountingInstallation ................................... 110 - 113
BearingBasicsandFAQs .....................................114
LubricationFAQs ........................................ 115 - 116
AirHandlingInterchange ......................................117
Visit our online resources .....................................118
102
MountedBallBearings
• Availableinavarietyofhousingconfigurationsincludingpillowblock,two-boltflange,four-boltflangeandmore
• Semi-solidcastironbase
• Anti-rotationrivet
• Availableinsetscrew,eccentric and concentric (BOA)locking
• AHsuffixproductdesignates special air handling housing fitandnoisetesting
103
MountedRollerBearings-Spherical
• Availableinavarietyofhousingconfigurationsincludingpillowblocks,flangeblocks,flangecartridgesandtake-upunits
• StandardwithMulti-Trap® seals
• Self-aligning,double-rowsphericalbearings
• One-piececastiron(1000Series)orductileiron(1100Series)housings
• Castironunitsin22500Series
• Taperedadapterlockingmechanism
• Triplelabyrinthseals
• Self-aligning,double-rowspherical roller
• Removeablehousingcaps
104
RubberMounted
• Availableincartridgesandstampedsteelpillowblocks
• DesignedtofitintoHVACweb-mountsupports
• Cartridgesadjustwithmisalignmentanddampennoiseand vibration
StampedSteel/RubberMounted
StampedSteel
• Lowcost,stampedsteelhousingsforlight-dutyHVACrequirements
• Wellsuitedforsmallspaces
• Permanentlysealedandlubricatedforlifeformaintenance-freeoperation
105
Air Handling Bearing Applications
Light Duty
Light Commercial
Duty
Commercial Duty
Industrial Duty
Browning®Ball
Browning1000Series
Browning22500Series
BrowningRunbberMount
BrowningStampedSteel
106
Housing Fits(Ball)
• Browning® ball bearings are manufacturedwithaspecialairhandlinghousingfit
• Allowsbearingstoproperlyself-alignwhenmountedonHVACframing,whichwillinturnreducevibration,excessivenoiseandpossiblebearingperformanceproblems
PrecisionHardenedandHonedRings(Ball)
• Innerringsarezonehardenedtomaintainballpathhardnesswhilekeepingtheinnerringextensionsoftforgreaterlockreliability
• Ballpathsarehonedforquieteroperationandlessvibration
Anti-RotationRivet(Ball)
• Preventsouterringcreep (rotationwithinthehousing)
• Reducesheatbuild-upandprolongs useful bearing life
AirHandlingBearingSolutions
MisalignmentBearing Type Misalignment
Ball +/-11/2°SphericalRoller +/-11/2°
107
AirHandlingBearingSolutions
NoiseTested(Ball)
• Extranoisetestcheckpointaddedtomanufacturingtoensurethatbearingsmeettheexactingnoiselevelneedsoftheairhandlingindustry
Semi-SolidCastIronBase(Ball&Roller)
• Excellentmountingfoundation
• Integraltopreventingsheetmetal“buckling”
StockProduct(Ball)
• Speciallydesigned“air-handling”bearingsareastockproduct and available off-the-shelf
108
AirHandlingLockingSolutions
SetscrewLocking
• Mostpopularlockingmechanism
• Doesnotrequirecollar
• Easytoinstall
• Goodforreversingapplications
InnerRingRoundness
• 120°Setscrewpositioning
• 120°positioninggiveslessdistortionthan90°or45°setscrewpositioning,whichistypicallyfoundoncompetitiveproducts
109
EccentricLock
• Eccentriclockingcollarmateswithbearing inner race for shaft hold
• Lockcollarboreandbearinginnerracemoveinanoffsettingdirectionfromthelockcollarcreatingatightclampingforce
• Lockcollarsurfacesareblackoxideprocessedforcorrosionprotection
• Eccentriclockingcollarsarenotrecommendedforreversingapplications
AirHandlingLockingSolutions
BOAConcentricLock
• AvailableonBrowningballbearingsonly
• Highlockingreliability
• Innerringandcollarsystem
• “Off-the-shelf”availabilityinpopularAHbearingpillowblocksizes3/4"to27/16"
InnerRingRoundness
• BOAlockingcollarminimizesballpath distortion
BOALockCollar
110
SetscrewMountingInstallation
1.InspectShaft • Clean/removeburrs
• Checkdiameter
• Cleanmountingsurface
• Mountingsurfacesmustbeflat
4.AlignSetscrewsonEitherEndofShaft
DoubleandSingleSetscrewLocking
5.AlternateTorquingofSetscrews (Table1Page111) • Step1-Torquesetscrew“A”tohalf
recommendedtorque
• Step2-Torquesetscrew“B”torecommendedtorque
• Step3-Torquesetscrew“A”torecommendedtorque
• DoubleLocking-repeatonoppositeend
6.StartEquipmentSlowly • Checkforunusualnoise,vibrationorbearingoperating
temperatureduringfirst48hoursofoperation
3.BoltHousingtoSupportSurface • Bearingandshaftmustbein
alignment(seeMisalignmenttableonpage104)
• Turnshafttomakesurethatitrotateseasily/smoothly
2.PlaceBearingonShaft • Donothammerbearingintoshaft
• Applylightfilmofoilonshaft
AB
111
BOAMountingInstallation
1.InspectShaft
• Clean/removeburrs
• Checkdiameter
• Cleanmountingsurface
• Mountingsurfacesmustbeflat
4.PushLockingCollarTightlyAgainstInnerRingShoulder
3.BoltHousingtoSupportSurface
• Bearingandshaftmustbeinalignment+/-1.5°
• Turnshafttomakesurethatitrotates
2.PlaceBearingonShaft
• Donothammerbearingintoshaft
5.TorqueCapScrewtoRecommended Value(Table2Page111)
CapScrew
6.StartEquipmentSlowly • Checkforunusualnoise,vibrationorbearingoperating
temperatureduringfirst48hoursofoperation
112
EccentricMountingInstallation
1.InspectShaft
• Clean/removeburrs
• Checkdiameter
• Cleanmountingsurface
• Mountingsurfacesmustbeflat
4.FastenUnittoShaft (Seetorquespecificationtable)
• Step1-Placecollaroninnerraceandrotatebyhandindirection of shaft rotation until eccentrics are engaged
• Step2-InsertdriftpinintotheholeinthecollarO.D.andlockinthedirectionofshaftrotationwithaidofasmallhammer
• Step3-Torquesinglesetscrewtorecommendedtorque
(ref.Table1page111)
3.BoltHousingtoSupportSurface
• Bearingandshaftmustbeinalignment
-Ball-11/2°max
• Turnshafttomakesurethatitrotates
2.PlaceBearingonShaft
• Donothammerbearingintoshaft
• Applylightfilmofoilonshaft
A
B
5.StartEquipmentSlowly • Checkforunusualnoise,vibrationorbearingoperating
temperature
113
InstallationEngineeringTables
Table1TorqueforTighteningSetscrewsSetscrew, Double and Eccentric Locking Collars
Table2TorqueforTighteningSetscrewsBOA Locking Collars
Table3RecommendedShaftTolerancesNominal Shaft Diameter Shaft Tolerance (inches)
1/2-115/16 +0.0000/-0.00052-33/16 +0.0000/-0.0010
31/4-415/16 +0.0000/-0.0015
Setscrew Diameter
Hex Size Across Flats
Recommended TorqueInch lbs Foot lbs
1/4 1/8 66-85 5.5-7.25/16 5/32 126-164 10.5-13.73/8 3/16 228-296 19.0-24.77/16 7/32 348-452 29.0-37.71/2 1/4 504-655 42.0-54.65/8 5/16 1104-1435 92.0-119.6
CapScrewSize
HexWrenchSize
TorqWrenchSize
RecommendedTorqueInchlbs Footlbs
#8-32UNC-3A 1/8 T-25 65-70 7-8
#10-24UNC-3A 9/64 T-27 90-100 10-11
#1/4-20UNC-3A 3/16 T-30 220-240 25-27
#5/16-18UNC-3A 1/4 T-45 450-495 51-56
114
BearingBasicsandFAQs
Whichcancarrymoreradialload,aballbearingorrollerbearing?
• Rollerbearingscancarrymoreloadbecausetherollingelementhaslinecontactwiththeracewaywhiletheballhasonlypointcontact
• Linecontactmeanstheloadisspreadoutoveragreaterarea,reducingthestressonracesandrollingelements
Whichtypeofbearinghasthehighestspeedcapability(ball,sphericalortaperedrollerbearing)?
• Ballbearingsingeneralhavethehighestspeedcapabilityfollowedbysphericalandtaperedroller
• Largercontactareas(taperedrollerbearings)resultinhigherlevelsoffriction,whichdecreasesspeedcapability
Whatisthedifferencebetweenstaticanddynamicmisalignment?
• Staticmisalignment=shaftmisalignmentataconstantanglewithrespecttothebearing
• Dynamicmisalignment=shaftthatiscontinuouslymisaligningwithrespecttothebearing
Speed Capability
Radial Load
Capability
Thrust Load
CapabilityMisalignment
BallBearings High Moderate Moderate Static
SphericalRollerBearings Moderate High Low Staticand
Dynamic
E-TypeTaperedRollerBearings Low High High None
115
BearingLubricationFAQs
Whatisgrease?• Mixtureofasoap/thickener,anoilandadditives
• Thethickener’sfunctionistoretainoilinthebearingcavity
• Theoilprovideslubricitytotherollingelementsandracewaysofthebearing
• Additivessuchasrustpreventativescanenhancegreasecharacteristics
Whygreaseinsteadofoilinthebearing?• Greaseispreferredduetoreducedmaintenanceand/or
lowercost
• Greaseiseasiertostore,handleandtransport
• Mostmountedbearingsaredesignedforrelubricationwithgrease
• Oilisthepreferredlubricantinhigh-speedorhigh-temperatureapplications
CanImixgreases?• Compatibilitymaybeanissuewhenmixingthickenerandoil
types
• Incompatibilitycanbeavoidedbyusingthegreaseorgreasetyperecommendedbythemanufacturer
CanIovergreaseabearing?• Excessivegreaseinthebearingmaybeanissueforhigh
speed applications
• Initialstart-upafterrelubricationshouldbeslowtoallowgrease to purge
• Whengreasing,addgreaseslowly
• Manymountedbearingsealsaredesignedtoallowgreasetopurge
• Somesealscanbedamagedorblownoutbyexcessiverelubrication
HowoftenshouldIregrease,andhowmuchgreaseshouldIadd?• Theengineeringchartsintheengineeringsectionsofthe
catalogsserveasgeneralschedulessinceapplicationsvarygreatly.Yourexperiencemaybeimportantindeterminingalubrication schedule.
116
LubricationEngineeringTables
Thesechartsaregeneralrecommendations.Experienceandtestingmayberequiredforspecificapplications.
Table6RollerBearingRelubricationSpeed Temperature Cleanliness Greasing Intervals
100RPM500RPM1000RPM
-20°F-125°F-20°F-150°F-20°F-210°F
CleanCleanClean
6months2months2weeks
1500toMax.CatalogRating
-20°F-150°F150°-200°F-20°F-200°F-20°F-200°F
DirtyDirty
VeryDirtyExtremeConditions
Dailyto1weekDailyto1weekDailyto1weekDailyto1week
Table4BallBearingRelubricationSpeed Temperature Cleanliness Greasing Intervals100RPM500RPM1000RPM1500RPM
-20°F-120°F-20°F-150°F-20°F-200°F-20°F-200°F
CleanCleanCleanClean
4to10months1to4months
1weekto1monthBi-weekly
1500toMax.CatalogRating
Upto150°F150°-200°F-20°F-200°F-20°F-200°F
DirtyDirty
VeryDirtyExtremeConditions
Dailyto1weekDailyto1weekDailyto1weekDailyto1week
ShaftSize(Inches) GreaseCharge(Ounces)1/2to1 0.03
11/16to13/16 0.1011/4to11/2 0.15
111/16to115/16 0.202to27/16 0.30
21/2to215/16 0.503to37/16 0.8531/2to4 1.50
Table5BallBearingGreaseCharge
ShaftSize(Inches) GreaseCharge(Ounces)13/16to11/4 0.1013/8to17/16 0.2211/2to111/16 0.32
13/4to2 0.502to23/16 0.5521/4to21/2 0.65211/16to3 0.85
33/16to31/2 1.25315/16to4 2.5047/16to41/2 3.10
Table7RollerBearingGreaseCharge
117
Air Handling Interchange
Table8SetScrewBallBearingInterchange
Table9BallBearingInterchange(BOA)
Table10RubberMountInterchange
Table11RollerBearingInterchange
*Alwayconsultmanufacturer’scatalogfordetaileddimensions.
*DodgeisatrademarkofRelianceElectricCompany.*SKFisatrademarkofSKFUSAInc.*FafnirisatrademarkoftheTorringtonCompany.*Link-BeltisatrademarkofRexnordCorp.*RexnordisatrademarkofRexnordIndustriesInc.Thesetradenames, trademarksand/orregisteredtrademarksofothersareusedherein forproductcomparisonpurposesonly,arethepropertyoftheirrespectiveownersandarenotownedorcontrolledby Emerson PowerTransmission Corporation. Emerson PowerTransmission does not represent orwarranttheaccuracyofthisdocument.
Requested Part Description Manufacturer Browning Part
DescriptionZEP-2XXX Rexnord” SPB1000SYRXX SKF” SPB1000
PE-B224XXH Link-Belt” SPB1000
Requested Part Description Manufacturer Browning Part
DescriptionP2BSCAH Dodge* VPS-2XXAHP2BSCMAH Dodge* VPS-3XXAHSYXX-TF/AH SKF* VPS-2XXAHSYMXX-TF/AH SKF* VPS-3XXAH
RASC Fafnir* VPS-2XXAHP3-UXXN Link-Belt* VPS-2XXAH
Requested Part Description Manufacturer Browning Part
DescriptionP2BDLAH Dodge* VPB-2XXAHP2BDLMAH Dodge* VPB-3XXAH
Requested Part Description Manufacturer Browning Part
DescriptionR-X-FM SKF* RUBRE-1XXRSCM-XX Fafnir* RUBRE-1XX
118
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119
Notes
120
Notes
3V3/8” x 5/16”
5V5/8” x 17/32”
8V1” x 29/32”
“A” Belts1/2” x 5/16”
“B” Belts21/32” x 7/16”
“C” Belts7/8” x 17/32”
3L3/8”
4L1/2”
5L21/32”
V-BeltsUnique design enhances performance and provides increased HP capacity in shorter center drives.
APPLICATION CONSIDERATIONS
The proper selection and application of power transmission products and components, including the related area of product safety, is the responsibility of the customer. Operating and performance requirements and potential associated issues will vary appreciably depending upon the use and application of such products and components. The scope of the technical and application information included in this publication is necessarily limited. Unusual operating environments and conditions, lubrication requirements, loading supports, and other factors can materially affect the application and operating results of the products and components and the customer should carefully review its requirements. Any technical advice or review furnished by Emerson Power Transmission Corporation and its divisions with respect to the use of products and components is given in good faith and without charge, and Emerson assumes no obligation or liability for the advice given, or results obtained, all such advice and review being given and accepted at customer’s risk.
For a copy of our Standard Terms and Conditions of Sale, Disclaimers of Warranty, Limitation of Liability and Remedy, please contact Emerson Power Transmission Customer Service at 1-866-869-2075. These terms and conditions of sale, disclaimers and limitations of liability apply to any person who may buy, acquire or use an Emerson Power Transmission Corporation product referred to herein, including any person who buys from a licensed distributor of these branded products.
358
CLASSICAL
FHP
Browning, B5V, Emerson, Emerson Industrial Automation, Gearbelt, Gripbelt and Gripnotch are trademarks of Emerson Electric Co. or one of its affiliated companies. ©2006, 2010 Emerson Power Transmission, All Rights Reserved. MCC10005 • Form 8932 • Printed in USA
Belt Drives & BearingsReference Guide
Product Information Installation Preventative Maintenance Troubleshooting
The First Name in Performance HVAC Belt Drives and Bearing Products
Customer Service — U.S. and InternationalPhone 866 869 2075Fax 800 262 3292
Customer Service — CanadaPhone 800 268 4149Fax 800 668 9005
Application EngineeringPhone 800 626 2093
www.emerson-ept.comMCC10005Form #8932Printed in U.S.