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D76■FitTherecommendedfitsforC-LubeMachinedTypeNeedleRollerBearingsareshowninTables21to23onpagesA41andA42.■AllowableRotationalSpeedTheallowablerotationalspeedofC-LubeMachinedTypeNeedleRollerBearingisaffectedbymountingandoperatingconditions.Thereferencedmnvalue(1)is20,000.Note(1)dmnvalue=(Borediameterofbearing[mm]+Outsidediameterofbearing[mm])/2}xrotationalspeed[min-1]■AccuracyC-LubeMachinedTypeNeedleRollerBearingsaremanufacturedbasedonJIS(SeepageA31.).Thetolerancesforthesmallestsinglerollersetborediam-eterofbearingswithoutinnerringarebasedonTable14onpageA33.■Mounting■PrecautionforUse■LubricationAstheinternalspaceofC-LubeMachinedTypeNeedleRollerBearingisfilledwiththermosettingsolid-typelubricantC-Lube,regreasingisnotpossibleduetothestructure.■OilholeTable2showsthenumberofoilholesontheouterring.TAF121219P6/SGModelcodeDimensionsModelcodeTypeofbearing(12mm)(19mm)Accuracyclass(Class6)BearingwidthNominaloutsidediameterExampleofidenti(cid:31)cationnumberClassificationsymbolRollersetborediameter(12mm)Table2umberofoilholesofouterringNominalrollersetborediameterFwmmNumberofholeholesofouterringFw≦2626<Fw01Remarkfthereisoilholeontheouterring,caremustbeexercisednottoletoilholeswithintheloadrange.1MountingdimensionsforC-LubeMachinedTypeNeedleRollerBearingsareshowninthetableofdimensions.2Whenmounting,payspecialattentiontoavoidlocatingtheoilholewithintheloadingzone.Thismayleadtoashortbearinglife.1DonotwashC-LubeMachinedTypeNeedleRollerBearingwithorganicsolventand/orwhitekerosene,whichhavetheabilityofremovingfatnorleavethemincontactwiththeaboveagents.2ToensurenormalrotationoftheC-LubeMachinedTypeNeedleRollerBearing,applyaloadof1%oroverofthedynamicloadratingatuse.3Theoperatingtemperaturerangeis-15〜+80˚C.Forcontinuousoperation,therecommendedoper-atingtemperatureis+60˚Corless.4WhenusingtwoormoreC-LubeMachinedTypeNeedleRollerBearingsadjacenttoeachotheronthesameshaft,itisnecessarytoobtainanevenloaddistribution.Onrequest,asetofbearingsisavailable,inwhichbearingsarematchedtoobtainanevenloaddistribution.Further,C-LubeMachinedTypeNeedleRollerBearingforfoodmachineryisalsoavailable.Ifneed-ed,pleasecontactIKO.D