SprocketTechnicalSection - Tsubaki

1 Tsubaki of Canada Limited, 1630 Drew Road, Mississauga, ON L5S 1J6 Tel: 905-676-0400 Fax: 905-676-0904 Toll-Free: 800-263-7088 e-mail: 1 - Information Necessary to Order ,type, ,thesuitabilityofthesprocketdependsonspe cificchaindimensions:Chainpitch,rolleror barreldiameter,insidewidthofchainorrolle rface,chainheight, ,ifapplicable,thenumberofworkingteeth,mi d-pitchrelief,orgap-toothedconstructions houldbespecified. , (Specifygradewhereapplicable) ,bronze,etc., HubOneSide HubBothSides Offsethubsonbothsides(notsymmetrical)Typ eATypeBTypeC TypeCOffsetShowspecialtolerances;keyways ize;keywaylocationwhenrequired. Ifthekeywayisnotstandard,specifystraight ,tapered,squareorflat, , (2)setscrews. Forotherrequirements, sstandard.

2 However,forspecialorders,outsidediameter andLength-Thru-Boreshouldbespecified. ForTypeCOffsetsprockets,specifytheLength -Thru-Boreandtheprojectionlengthofoneoft hehubs(measurehublengthfromsprocketplate ).Specificinformationaboutthesprocketmus tbedescribedduringtheorderingorquotingpr ocess. of Canada Limited, 1630 Drew Road, Mississauga, ON L5S 1J6 Tel: 905-676-0400 Fax: 905-676-0904 Toll-Free: 800-263-7088 e-mail: Numberindicatesthetypeandsizeofchainthat willrunontheSprocket. ForANSI rollerchain,therighthandnumberreferstoth echainproportions. Forexample,0(zero)isfornormalproportions . Thenumberstotheleftoftheright-handdigitd enotethenumberof1/8inchesinthepitch. Theletter H followingthechainnumberdenotesheavyserie s.

3 BritishStandardrollerchaindoesnothaveade signationfortheproportionsofthechain. Instead,thefirsttwodigitsofthechainnumbe rdenotethenumberof1 Pitchisthedistancebetweenthepincenterlin esinalinkofchain. Thisdistanceisusedtomakethetoothprofileo fasprocket,butcannoteasilybemeasuredonaf inishedsprocket. Ifthepitchofasprocketisincorrect, Diameteristhediameterofthetheoreticalcir clethatpassesthroughthecentersofthelinkp inswhenthechainiswrappedaroundthesprocke t. Thiscan tbemeasuredonthesprocketitself, Diameteristhediameterofacircletangenttot hecurve(calledtheseatingcurve)atthebotto mofthetoothgaps. Thisdimensioncannotbemeasuredproperlyono dd-toothedsprockets, Diameteristhesameasthebottomdiameterfora sprocketwithanevennumberofteeth.

4 Forasprocketwithanoddnumberofteeth, Order NumberH - 100 - C - 30 - F - Treat TeethChain NumberHub TypeNumber of TeethBore Type/Locking DeviceBore SizeTomakeorderingaseasyaspossible,Table 1showsthegeneralinformationyouneedtoprov ide. Onyourorder,indicatetheSprocketpartnumbe r. Thisnumberiscomposedofthechainnumber,the hubtype,thenumberofteeth,thelocking-devi ce(ifanyisrequired),andtheboresize. Anexampleisshownbelow. Ifyouareunsureofyourpartnumber, of Canada Limited, 1630 Drew Road, Mississauga, ON L5S 1J6 Tel: 905-676-0400 Fax: 905-676-0904 Toll-Free: 800-263-7088 e-mail: Typeindicatesthecoreofthesprocket. Eachtypeisdesignedforaspecificneed. Type Adoesnothaveahubaspartofthesprocketwheel . Thewheelmustbemountedonaflange,hub,oroth erholdingdevice.

5 Type Bhasthehubextendingononesidefromthewheel . Thistypeisusuallyfoundonsmallandintermed iatesizesprockets. Type Chasahubofequallengthonbothsidesofthewhe el. Type C Diameteristheoutsidediameterofthehub, Hub Diameteristhelargestsizeofhub,withoutint erferingwiththechainarticulation(wrappin garoundthesprocket).Maximum Boreisthelargestborethatcanbesafelyputin tothesprocket. Itmustallowsufficienthubwallthicknessfor theapplication storque,withallowancesmadeforkeyway(s) Deviceisanimportantconsideration. FinishedBore(twosetscrewsandasinglekeywa y)isthemostcommonmountingmethodsuppliedb yTsubaki. Typically,setscrewsareplacedoverthekeywa yandat90 tothekey,fromthehubside. Othermountingsorlockingdevicescanbespeci fied,includingTsubakiPower-Locks,SplitTa per, QD StyleandTaperLockbushings,bearingandbush ingidlers,andmore.

6 Power-Lockkeylesslockingdevicesarerecomm endedforextraholdingpowerinhighertorquec onditions. SizerangesareindicatedintheSprockettable s. Ifyouwishtoboreyourownsprockets,Tsubakis tocksawiderangeof stockbore sprockets,withasmallpilotbore,suitablefo rreboring. Verifythatyourfinishedborewillfitinthest ockhubbycheckingthesprockettables. Forboresoutsidethestatedboreranges, Tsubakistocksmanysizesofrollerchainsproc ketswithheat-treatedteeth,whichareharden edwithinarangeofRockwellC35to50(minimumR C35). Specifyhardenedteethwhenordering. Ifatighterhardnessrange( ),orahigherminimumhardness( )isrequired, Thru Bore,orLTB,isthelengthoftheborethroughth esprocket. TheLTBmustbelongenoughtoallowfortheprope rlengthkeytotransmitthetorqueoftheapplic ation.

7 OffsetTypeTypeTypeTypeSprocketsE209 Tsubaki of Canada Limited, 1630 Drew Road, Mississauga, ON L5S 1J6 Tel: 905-676-0400 Fax: 905-676-0904 Toll-Free: 800-263-7088 e-mail: SERIES ROLLER CHAIN SPROCKETSHEAVY SERIES ROLLER CHAIN SPROCKETSC hain Data For All SprocketsFor 4 or more StrandsDouble and t and M on THRHotRolledToleranceSingleStrandt1andTH R2535414050608010012014016018020024060H8 0H100H120H140H160H180H200H 11 1 1 22 2 3 11 1 1 22 2 111 1 1 111 1 1 1 . 2 - Roller Chain Sprocket Tooth Dimensions - Standard and Heavy SeriesNote: (HOT ROLLED MATERIAL)DOUBLE AND TRIPLESINGLESINGLE HOTROLLED STEEL PLATEM8 QUADRUPLE AND OTHER of Canada Limited, 1630 Drew Road, Mississauga, ON L5S 1J6 Tel: 905-676-0400 Fax: 905-676-0904 Toll-Free: 800-263-7088 e-mail: 4 - Standard Keyways and Set ScrewsDiameterKeyseatDiameterof ShaftWidth x Depthof Set ofTeethNo.

8 1 1 1 1 2 2 4140506080100120140160200678910111213141 516171819202122232425 11 1 1 1 1 1 1 1 2 2 2 2 2 - - - -1 1 -1 1 -1 1 -2 2 -2 2 -3 3 -3 3 -4 4 -5 5 -6 6 -7 7 -8 9-10 x x x x x x x x x x 1x 1 x 1 x 1 x 2x12 x1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 1 1 1 1 1 1 1 1 22 2 2 2 1 1 1 1 1 1 22 2 2 2 2 2 3 3 3 1 1 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 11 1 1 1 1 1 22 2 2 2 2 2 2 1 1 1 1 2 2 2 2 3 3 3 3 44 4 4 4 5 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 66 6 6

9 11 1 1 1 2 2 2 2 3 3 3 3 3 4 4 5 5 1 1 2 2 3 3 3 4 4 5 5 5 6 6 7 7 7 8 8 1 1 1 2 2 2 2 3 3 3 4 4 5 5 5 6 6 6 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 9 10 1 1 1 2 2 2 3 3 3 4 5 5 5 6 6 77 7 8 1 1 2 3 3 4 4 5 5 6 7 7 8 8 9 9 10 11 11 12 1 1 2 2 2 3 3 4 55 5 6 777 8 8 99 1 2 2 3 4 4 5 6 6 7 8 8 9 10 10 11 11 12 13 13 1 1 22 2 3 3 4 5 5 6 777 88 99 10 10 22 3 4 5 6 77 8 9 10 11 11 12 13 14 15 15 16 17 1 1 2 3 3 4 5 6 6 77 8 8 9 10 10 11 12 12 13 NOTE:Asageneralrule,thehubwalloverthekey wayshouldbeequaltoorgreaterthanthediamet erofthesetscrew.

10 * (H+.050) N=Numberofteeth H=Heightofinsideplate180oNTable 3 - Sprocket Hub DiametersTheabovemaximumboresarenotappro vedforsevereconditions. Forsevereserviceconditionsmaximumboressh ouldnotbegreaterthan ofthediameterofthehub.* Diameter Formulas67891011121314151617181920212223 24258-3210-24 1111 SprocketsE211 Tsubaki of Canada Limited, 1630 Drew Road, Mississauga, ON L5S 1J6 Tel: 905-676-0400 Fax: 905-676-0904 Toll-Free: 800-263-7088 e-mail: ) .Number ofNumber ofNumber 5 - Sprocket Pitch Diameter of Canada Limited, 1630 Drew Road, Mississauga, ON L5S 1J6 Tel: 905-676-0400 Fax: 905-676-0904 Toll-Free: 800-263-7088 e-mail: SpecificationsTsubakiSprocketsarecareful lydesignedandmanufacturedtoprovideexcept ionalserviceinallapplications.