>> P.236
■TypesThetypesofavailable.RollerBearingsshowninTable1areTable1TypeofbearingTypeFullCagedtypecomplementForsheavesSeriesStandardWithsealNAU49TRUNAU49…UUTRU…UUtypeNAG49──NAG49…UUNAS50…UUNR■IdentificationNumberTheidentificationnumberofRollerBearingsconsistsofamodelcode,dimensions,anysupplementalcodesandaclassificationsymbol.Thearrangementexamplesareshownbelow.ExamplesofidenticationnumberExample1ModelcodeDimensionsSupplementalcodeClassificationsymbolNAG4910UUP6Withshield────NAS50…ZZNRTypeofbearingDimensionseriesBorediameternumberSealsymbol(Withsealsonbothsides)Accuracyclass(Class6)Example2ModelcodeDimensionsSupplementalcodeNAS5010ZZNRTypeofbearingDimensionseriesBorediameternumberShieldsymbol(Withshieldsonbothsides)Bearingringshapesymbol(Withstopringsonouterring)CagedRollerBearingsloads.Also,asfluctuatingforhigh-speedrotationsThesebearingsaresuitableandtheaxialdistancebetweenthedouble-rowrollersiscomparativelylarge,largemomentloadscanbesupported.Cagedrollerbearingswithsealincorporatesealsonbothsides.Syntheticresinrubbersealsareexcellentinthepreventionofdustpenetrationandgreaseleak-age,providinganexcellentsealingeffect.FullComplementRollerBearingsThesebearingsaresuitableforlow-speedrotationsoroscillatingmotionsandheavyloads.Similartothecagedtype,thestructureisadvantageousforsupport-ingmomentloads.Thebearingswithsealsides.incorporatesealsonbothRollerBearingsforSheavesTherearetwotypes;foruselowsectionalheightdesignedthedouble-rowfullcomplementinthesealedtypeandTheycanwithstandheavyradialloadsatcomparativelylow-speedThesebearingsaretypewithasheaves.theshieldtype.loadsandshockrotations,andcanalsowithstandaxialloads.Theycaneasilybefixedaxiallytosheavesusingthestopringsoftheouterring.Asthewidthoftheinnerringisdesignedthanthatoftheouterring,theyrequirenospacerbetweensheaves.Thestructureisstablebecausethedouble-rowrollerscanwithstandloadscausedbyropetransi-tion.Thesurfacesofhighcorrosionresistance.thesebearingsaretreatedtohavethemomenttobelargerE3
| < 
| 
> | 
>>
