>> P.143
D4■IdentificationNumberModelcodeSupplementalcodeClassificationsymbolDimensionsNA49UUTypeofbearing05C2P6Examplesofidenti(cid:31)cationnumberExample1Example2BorediameternumberSealsymbol(Withsealsonbothsides)DimensionseriesClearancesymbol(C2clearance)Accuracyclass(Class6)ModelcodeDimensionsBRI2416Typeofbearing37Bearingborediameter(24×1/16=11/2inches)Outerringwidth(16×1/16=1inch)Bearingoutsidediameter(37×1/16=25/16inches)■AccuracyTable2AccuracyofinnerandouterringsofinchseriesBRandBRIIdorDNominalbearingboredia.oroutsidedia.mm∆dmpSingleplanemeanborediameterdeviation∆DmpSingleplanemeanoutsidediameterdeviation∆Bs(∆Cs)Deviationofasingleinner(orouter)ringwidthKiaRadialrunoutofassembledbearinginnerringKeaRadialrunoutofassembledbearingouterring-19.05030.16250.80082.550120.65019.05030.16250.80082.550120.650184.15000000--10-13-13-15-20---13-13-15-20-25-130-130-130-130-130-130-00000000000101315202530-1520253545unit:μmOverIncl.HighLowLowLowHighHighMax.Max.Remarkdfor∆dmp,∆Bs,∆CsandKia,andDfor∆DmpandKeaTheidentificationnumberofMachinedTypeNeedleRollerBearingsconsistsofamodelcode,dimen-sions,anysupplementalcodesandaclassificationsymbol.Examplesareshownbelow.MachinedTypeNeedleRollerBearingsaremanufac-turedbasedonJIS(SeepageA31.).Thetolerancesforthesmallestsinglerollersetborediameterofbear-ingswithoutinnerringarebasedonTable14onpageA33.ForBRandBRIseries,theaccuracyisbasedonTable2andthetolerancesforthesmallestsinglerollersetborediameterarebasedonTable3.D
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