>> P.120
■TypesNeedleRollerCagesforGeneralUsageareavailableinthetypesshowninTable1.Forapplicationssuchascrankshaftswherethesebearingsaredifficulttoisalsopossibletomakesplittypebearings.Ifsuchbearingsarerequired,pleasecontactIKO.ForNeedleRollerCagesforEngineConnectingRods(KT…EGandKTV…EG),seepageC17.install,itTable1ModelofbearingItemSinglerowneedleDoublerowneedleModelofbearingHighcarbonsteelcagetypeSyntheticresincagetyperollerKTKT…NrollerKTW-■IdentificationNumberTheidentificationnumberofNeedleRollerCagesforGeneralUsageconsistsofamodelcode,dimensionsandanysupplementalcodes.Thearrangementexamplesareshownbelow.ExamplesofidenticationnumberExample1ModelcodeDimensionsSupplementalcodeKT152010C3TypeofbearingRollersetborediameter(15mm)Rollersetoutsidediameter(20mm)Cagewidth(10mm)Toleranceofmeanvalueofrollerdia.(RefertoTable2.)Example2ModelcodeDimensionsSupplementalcodeKT505825NC3TypeofbearingRollersetborediameter(50mm)Rollersetoutsidediameter(58mm)Cagewidth(25mm)Toleranceofmeanvalueofrollerdia.(RefertoTable2.)■AccuracyThediametertolerancesofneedlerollersofNeedleRollerCagesforGeneralUsageareclassifiedbyclassificationsymbolsshowninTable2.Ifaclassifi-cationsymbolisnotindicatedinanidentificationnum-ber,theclassificationsymbol"C3"isapplied.Whentandemarrangementonthesameshaft,itisnecessarytoselectbearingsofthesameclassificationsymboltoobtainanevenloaddistribution.twoormorebearingsareusedinThetoleranceofthecagewidthBcis-0.20〜-0.55mm.Table2Diametertolerancesofneedlerollersunit:μmClassificationsymbolC3B2B4B6B8B10Toleranceofmeanvalueofneedlerollerdiameter0〜- 30〜- 2-2〜- 4-4〜- 6-6〜- 8-8〜-10C3
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