>> P.220
■TypesNeedleRollerBearingswithSeparableCageareavailableinthetypesshowninTable1.Table1TypeofbearingSingle-rowDouble-rowTypeWithoutinnerringModelcodeRNAFWithinnerring(1)NAFWithoutinnerringRNAFWWithinnerring(1)NAFWNote(1)FortheNeedleRollerBearingswithSeparableCagewithinnerrings,theneedlerollerbearingsandinnerringswillbedeliveredseparately.PleasecontactIKOifinneedofdeliveryasanintegratedproduct.NeedleRollerBearingswithSeparableCage-WithoutInnerRingthedouble-rowThesingle-rowaswellastypesareavailablewiththesamesectionalheight,andeitherofthemcanbeselectedaccordingtoloadconditions.Asshowninthesection,"Designofshaftandhous-ing"onpageA44,anydesiredradialinternalclear-ancecanbeselectedbycombiningashaftwhichisheat-treatedandfinishedbygrinding.NeedleRollerBearingswithSeparableCage-WithInnerRingThesebearingsaremadetotheCNclearanceshowninTable19onpageA37.Whenespeciallyhighaccu-racyisrequired,itispossibletosupplysemi-finishedinnerringswhichhaveafinishingallowanceontheiroutsidediametersotheycanbegroundafterthatbeingpress-fittedtoshafts.■IdentificationNumberTheidentificationnumberofNeedleRollerBearingswithSeparableCageconsistsofamodelcode,dimensions,anysupplementalcodesandaclassifica-tionsymbol.Thearrangementexamplesareasfol-lows.ExamplesofidenticationnumberExample1ModelcodeDimensionsSupplementalcodeRNAF7148NTypeofbearingRollersetborediameter(7mm)Nominaloutsidediameter(14mm)Bearingwidth(8mm)CagemadeofsyntheticresinExample2ModelcodeDimensionsSupplementalcodeClassificationsymbolNAFW304526C2P5TypeofbearingNominalborediameter(30mm)Nominaloutsidediameter(45mm)Bearingwidth(26mm)Clearancesymbol(C2clearance)Accuracyclass(Class5)D81
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