>> P.237
E1N=0.102kgf=0.2248lbs.1mm=0.03937inch■LubricationBearingswithprepackedgreaseareshowninTable3.ForCagedRollerBearingsandFullComplementRollerBearings,ALVANIAGREASES2(ShellLubricantsJapanK.K.)isprepackedasthelubricatinggrease.ForRollerBearingsforSheaves,ALVANIAGREASEEP2(ShellLubricantsJapanK.K.)ispre-packedasthelubricatinggrease.Inthecaseofbearingswithoutprepackedgrease,performproperlubricationforuse.Operatingwithoutlubricationwillincreasethewearoftherollingcontactsurfacesandshortentheirlirees.■OilHoleThenumberofoilholesoftheinnerandouterringsisshowninTable4.■OperatingTemperatureRangeTheoperatingtemperaturerangeforRollerBearingsis-20℃〜+120℃.However,themaximumallow-abletemperatureforRollerBearingsforSheavesis+110℃.■Accuracyisshownbelow.RollerBearingsaremanufacturedinaccordancewithJIS(SeepageA31.).Asideplateforinnerringisassembledononesideofcagedorfullcomplementrollerbearings.ThetoleranceofborediameterofthesideplateTolerancesofRollerBearingsthevaluesbeforesurfacetreatment.Thetoleranceofinternaldistancebetweencir-clipsisshownbelow.Toleranceofborediameterofthesideplated:E7Toleranceofinternaldistancebetweencir-clipsC1:0〜+0.4mmforSheavesrepresent■ClearanceinTable18onpageA37.RollerBearingsaremanufacturedtotheCNclear-anceshownHowever,RollerBearingsforSheavesaremanufacturedsothatproperoperatingclearancesareobtainedafterbeingmountedwithaspecifiedfit.■FitTherecommendedfitsforRollerBearingsareshowninTables21to22onpagesA41andA42.Therec-ommendedfitsforRollerBearingsforSheavesareshowninTable2.Table2RecommendedfitsforRollerBearingsforSheavesToleranceclassofshaftToleranceclassofhousingboreg6N7E4Table3Bearingswithprepackedgrease〇:Withprepackedgrease×:WithoutprepackedgreaseStandardWithsealsWithshields--〇〇〇〇××-CagedtypeFullcomplementtypeForsheavesTypeNAU,TRUNAGNASTable4NumberofoilholesoftheinnerringandouterringTypeNumberofoilholesoftheouterringNominalborediameter dmmStandardWithsealsWithshieldsNumberofoilholesoftheinnerring0002───002202002202─CagedtypeNAUTRUFullcomplementtypeNAGForsheavesNASd≦1717<dd≦1717<dRemarkThebearingswithoilholesarealsoprovidedwithanoilgroove.
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