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0873073CICIO3433--77b-.9Copyright@AmericanBearingManufacturersAssociation,Inc.,1990ThesematerialshavebeenpreparedbytheAmericanBearingManufacturersAssociation,Inc.HowevertheinformationcontainedinthesematerialshasnotbeenindependentlyverifiedbytheAmericanBearingManufacturersAssociationorInformationHandlingServices,Inc.Neitherorganizationwarrantsorassumesanyliabilityfortheaccuracyorcompletenessofthesematerials.AF'BMA1390M08730730000395383e!EiEi9ANSVAFBMA(RevisionofANSVAFBMAStd11-1990Std11-1978)AMERICANNATIONALSTANDARDAFBMASTANDARDLOADRATINGSANDFATIGUELIFEFORROLLERBEARINGSSponsorTheAnti-FrictionBearingManufacturersAssociation,Inc.ApprovedJuly17,1990AmericanNationalStandardsInstitute,Inc.AmericanNationalStandardApprovalofanAmericanNationalStandardrequiresverificationbyANSIthattherequirementsfordueprocess,consensus,andothercriteriaforapprovalhavebeenmetbythestandardsdeveloper.Consensusisestablishedwhen,inthejudgmentoftheANSIBoardofStandardsReview,substantialagreementhasbeenreachedbydirectlyandmateriallyaffectedinterests.Substantialagreementmeansmuchmorethanasimplemajority,butnotnecessarilyunanimity.Consensusrequiresthatallviewsandobjectionsbeconsidered,andthataconcernedeffortbemadetowardtheirresolution.TheuseofAmericanNationalStandardsiscompletelyvoluntary;theirexistencedoesnotinanyrespectprecludeanyone,whetherhehasapprovedthestandardsornot,frommanufacturing,marketing,purchasing,orusingproducts,processes,orproceduresnotconformingtothestandards.TheAmericanNationalStandardsInstitutedoesnotdevelopstandardsandwillinnocircumstancesgiveaninterpretationofanyAmericanNationalStandard.Moreover,nopersonshallhavetherightorauthoritytoissueaninterpretationofanAmericanNationalStandardinthenameoftheAmericanNationalStandardsInstitute.Requestsforinter-pretationsshouldbeaddressedtothesecretariatorsponsorwhosenameappearsonthetitlepageofthisstandard.CAUTIONNOTICEThisAmericanNationalStandardmayberevisedorwithdrawnatanytime.TheproceduresoftheAmericanNationalStandardsInstituterequirethatactionbetakentoreaffirm,revise,orwithdrawthisstandardnolaterthanfiveyearsfromthedateofapproval.PurchasersofAmericanNationalStandardsmayreceivecurrentinformationonallstandardsbycallingorwritingtheAmericanNationalStan-dardsInstitute.PublishedbyTheAnti-FrictionBearingManufacturersAssociation,hc.1101ConnecticutAve.N.W.,Suite700washingtori,D.C.20036Copyright1990byTheAnti-FrictionBearingManufacturersAssociation,hic.--```,,`,,,,,`,`,`,,````,``,`,-`-`,,`,,`,`,,`---AFBMA11900873073OOOOL97156FOREWORD(ThisForewordisnotapartofAmericanNationalStandard,LoadRatingsandFatigueLifeforRollerBearings.)ThisrevisionofANSVAFBMAStandard11hasasitsprincipalfeature:Theutilizationofthefactorf,,whichdependsonthegeometryofthebearingcomponents,theaccuracytowhichthevariouscomponentsaremadeandcontemporary,normallyusedmaterialanditsmanufacturingquality.ThisstandardisincloseconformitywithIS076-1987(Rollingbearings-Staticloadratings)andwithIS0DIS281-1989(Rollingbearings-Dynamicloadratingsandratinglife).Anysignificantdifferences,wheretheyoccur,areindicatedinthisstandard.TheprincipaldifferencebetweenthisstandardandIS0DIS281istheuseofthef,,factorwhichcombinedthef,andb,factorsusedinIS0281.Dynamicloadratingscalculatedforthesamebearingshouldhavethesamevalue,however,whenfollowingeitherthisortheIS0Standardunlessnotedotherwiseinthisstandard.Thelifeadjustmentfactorforspecialbearingproperties,a2,intendedforusewithcapacitiescalculatedinaccordancewithpreviousrevisionsofthisStandardmaynotbevalidforusewiththecurrentcapacities.Thepresentfcmvaluesincorporatematerialandprocessingimprovementswhichwerepreviouslyadjustedbymeansofthea2factor.CopiesofIS0StandardsconcerningRoliingContactBearings(BallandRollerBearings)areavailablefromtheAmericanNationalStandardsInsti-tute.Suggestionsfortheimprovementofthisstandardgainedfromitsusewillbewelcomed.SuchsuggestionsshouldbesenttotheAmericanNationalStandardsInstitute,Inc.,1430Broadway,NewYork,N.Y.,10018.TheofficersofAccreditedStandardsCommitteeB3operatingunderAmer-icanNationalStandardsInstituteProceduresandtheorganizationsrepre-sentedatthetimethisstandardwassubmittedareasfollows:S.R.Ahlman,ChairmanG.T.Satterfield,SecretaryAnti-FrictionBearingManufacturersAssociationHydraulicInstituteNationalMachineToolBuildersAssociationSocietyofTribologistsandLubricationEngineersUS.DepartmentoftheNavyU.S.DepartmentofDefense,DISC--```,,`,,,,,`,`,`,,````,``,`,-`-`,,`,,`,`,,`---1478.18.29101112.112.213141516.116.21718.118.2192021.I21.222.223.224.I24.2AFBMAStandardsforBallandRollerBearingsandBalls-Terminology-ToleranceDefinitionsandGagingPractices-ShaftandHousingFitsforMetricRadialBallandRollerBearings(ExceptTaperedRollerBearings)ConformingtoBasicBoundaryPlans-BallandRollerBearingMountingAccessories,MetricDesign-BallandRollerBearingMountingAccessories,InchDesign-LoadRatingsandFatigueLifeforBallBearings-MetalBalls-LoadRatingsandFatigueLifeforRollerBearings-InstrumentBallBearings,MetricDesign-InstrumentBallBearings,InchDesign-RollingBearingVibrationandNoise-HousingforBearingsWithSphericalOutsid