DIN-620-2-1988

UDC621.822.6/.8:621.753.1:003.62DEUTSCHENORMFebruary1988RollingbearingsTolerancesforrollingbearingsTolerancesforradialbearingsoiN620Part2Wälzlager;Wälzlagertoleranzen;ToleranzenfürRadiallagerInkeepingwithcurrentpracticeinstandardspublishedbytheInternationalOrganizationforStandardization(¡SO),acommahasbeenusedthroughoutasthedecimalmarker.SeeExplanatorynotesforconnectionwithInternationalStandardIS0492-1986publishedbytheInternationalOrganizationforStandardization(ISO).SupersedesJune1982edition.ContentsPage1Scopeandfieldofapplication.............12Terminology........................14Quantitiesandsymbols.................2ingeneral.........................23Gaugingmethods.....................14.1Quantitiesandsymbolsforrollingbearings4.2Quantitiesandsymbolsparticulartotaperedrollerbearings......................35Tolerances..........................35.1Radialbearingsexcepttaperedrollerbearings.35.1.1ToleranceclassPO(normaltoleranceclass)..4Page5.1.2ToleranceclassP6..................55.1.3ToleranceclassP5..................65.1.4ToleranceclassP4..................75.1.5ToleranceclassP2..................85.2Taperedrollerbearings................85.2.1ToleranceclassPO(normaltoleranceclass)..95.2.2ToleranceclassP6X.................105.2.3ToleranceclassP5..................105.2.4ToleranceclassP4..................115.3Taperedbore(taper1:12)..............125.3.1ToleranceclassPO(normaltoleranceclass)..125.4Taperedbore(taper1:30)..............135.4.1ToleranceclassPO(normaltoleranceclass)..131Thetolerancesspecifiedinthisstandardensureperformanceandinterchangeabilityofcomponentsandbearingsofradialrollingbearings.Theydonot,however,allowanydirectconclusionstobedrawninrespectoftherunouttolerances.Thetolerancesspecifiedapplytoradialrollingbearingscoveredinthedimensionstandardsforrollingbearings,not,however,toradialrollingbearingsforuseintheaircraftindustry,tolerancesforsuchbearingsbeingspecifiedinseparatestandards.AscomparedwithIS0492-1986,thisstandarddoesnotspecifytolerancesfortheouterringflange;seeExplanatorynotes.SeeIS01132-1982fordefinitionsandDIN620Part1forgaugingmethods.Scopeandfieldofapplication2TerminologySeeIS01132forconceptsrelatingtotolerancesspecifiedinthisstandard.3GaugingmethodsThegaugingmethodspermittingdimensionstobemeasuredforwhichtolerancesarespecifiedinthisstandardareoptional.Incasesofarbitration,thegaugingmethodsspecifiedinDIN620Part1shallbeused.Continuedonpages2to14BeuihVerlagGmbH.Berlin,hastheexclusiverightofsaleforGermanStandards(DIN-Normen)DIN620Part2Engl.Pricegroupi04.89SalesNo.0111--``,`,,`,,```,,`,`,,,``,```,`-`-`,,`,,`,`,,`---Page2DIN620Part2LI--Y.--6-Q-0a4Quantitiesandsymbols4.1QuantitiesandsymbolsforrollerbearingsingeneralFigure1.Figure2.Figure3l).SymbolsandquantitiesasspecifiedinIS01132,June1982editionddlAdsAampAdlmmeanborediameterdeviationattheoreticallargeendofabasicallytaperedborevamp(Ynominaltaperangle.........................................................-D1outerringflangeoutsidediameter................................................-Subclausenominalborediameter.......................................................4.1.1basicdiameterattheoreticallargeendofabasicallytaperedbore.deviationofasingleborediameter...............................................4.1.3singleplanemeanborediameterdeviation..........................................4.1.8borediametervariationinasingleradialplane.......................................4.1.9meanborediametervariation...................................................4.1.10Dnominalbearingoutsidediameter................................................4.2.1ADsdeviationofasingleoutsidediameter.............................................4.2.3ADmpsingleplanemeanoutsidediameterdeviation.........................................4.2.8outsidediametervariationinasingleradialplane......................................4.2.9VD,VD^^meanoutsidediametervariation.4.2.10Bnominalinnerringwidth.4.4.1ABsdeviationofasingleinnerringwidth.4.4.3VBsinnerringwidthvariation4.4.4Cnominalouterringwidth.....................................................4.4.1AcSdeviationofasingleouterringwidth..............................................4.4.3Vc,outerringwidthvariation.....................................................4.4.4Ki,radialrunoutofassembledbearinginnerring........................................5.1.1K,radialrunoutofassembledbearingouterring........................................5.1.2S,innerringreferencefacerunoutwithbore..........................................5.3.1SDvariationofbearingoutsidesurfacegeneratrixinclinationwithouterringreferenceface............5.5.1Si,assembledbearinginnerringfacerunoutwithraceway..................................5.2.1S,assembledbearingouterringfacerunoutwithraceway..................................5.2.3..........................-................-Vdp.......................................................................................................................................................................................................C1oute