>> P.70
TheidentificationnumberofShellTypeNeedleRollerBearingsconsistsofamodelcodeanddimensions.Examplesofthearrangementareshownbelow.theassembledWhenusingwithinnerringsshowntablesareused.Anexampleinthiscaseisalsoshownbelow.Innerringsaredeliveredseparately.innerrings,thedimensioninExamplesofidenticationnumberExample1ModelcodeDimensionsTA1820ZTypeofbearingRollersetborediameter(18mm)Outerringwidth(20mm)Example2(Withinnerring)IdentificationnumberofShellTypeNeedleRollerBearingIdentificationnumberofInnerRingTA1820ZIRT1520+■AccuracyIttotreatment.thusnotappropriatethebearing.TheouterringsofShellTypeNeedleRollerBearingsarethinandthereforecannotavoiddeformationduetoheatistakedirectmeasurementsofTherollersetborediameterismeasuredusingapluggaugeortaperedgaugeafterpress-fittingthebearingtoasuit-ableringgauge.ThegaugespecificationsareshowninTables2.1and2.2.TolerancesofouterringwidthCareshowninTable3.NumerousvarietiesofShellTypeNeedleRollerBearingsareavailableasshowninTable1.CagedFullcomplementClosedendWithseals(1)GreaseretainedYTLYTYBYBHTLA … UU---TLAMTAMBAMBHAMTable1TypeofbearingTypeSeriesMetricseriesInchseries-Heavyduty-HeavydutyStandardTLA … Z … Z … ZBABHA … ZTAtheheavydutytypewithsealsortheclosedendtypewithonesealisrequired,pleaseconsultIKO.Note(1)WhenRemarkA"W"isaddedtothemodelcodetoindicatethattherollingelementsareofthedouble-rowtype. ExampleTAW5045ZShellTypeCagedNeedleRollerBearingsStandardtypeThistypehasanarrowgapbetweentheboreofthemarked-sidetheouterring(brand,bearingnumber,etc.aremarked)andtheshaft,whichpre-ventsgreaseleaksandtheentryofforeignparticles.Thistypehaswideapplications.flangeofClosedendtypeiscompletelyclosedononesideoftheThistypeouterring,andisidealforusewhenperfectclosingofshaftendsisdesired.Theshapeoftheclosedendsurfaceoftheouterringisdividedintotwotypes,andthedimensionst1andt2intablesthethebearingswiththerollersetborediame-applyillustrationsshowntothedimensioninters,Fw>22andFw≦22,respectively.typehasawiderouterringTypewithsealsatbothsidesthanthestandardThistypeandinstalledwithsealsconsistingofarein-forcingringandspecialsyntheticrubbertopreventgreaseleaksandtheentryofforeignparticles.isShellTypeGreaseRetainedFullComplementNeedleRollerBearingsThistypehasfullcomplementrollerswhichextendtothefullwidthoftheouterringraceway.Itcan,there-fore,withstandheavybearingloadsandismostsuit-ableforlowandmediumrotationalspeedsaswellasrockingmotions.Aslubricatinggreaseisprepackedwiththerollers,thebearingcanbeoperatedimmedi-atelyafterbeingfitted.B3■Types■IdentificationNumber
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