ISO 13412-1997 Aerospace - Airframe needle track roller yoke type single-row sealed - Inch series《航空航天 飞机结构用轭型单列密封的滚针滚道式滚子 英制系列》.pdf

1、A Referencenumbe r ISO13412:1997 (E) INTERNATIONAL STANDARD ISO 13412 Firstedition 19971215 AerospaceAirframeneedletrackroller, yoketype,singlerow,sealedInchseries AronautiqueetespaceGaletsdecameaiguillespourtrier, unerange,avecjoints,pourcelluledaronefSrieinchISO13412:1997(E) ISO1997 Allrightsreser

2、ved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyan ymeans,electronic ormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromthepublisher. InternationalOrganizationforStandardization Casepostale56 CH1211Genve20 Switzerland Internet centr

3、aliso.ch X.400 c=ch;a=400net;p=iso;o=isocs;s=central PrintedinSwitzerland ii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies (ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachme

4、mberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnongovernmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmatters

5、ofelectrotechnicalstandardization. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. InternationalStandardISO13412waspreparedbyTechnicalCommitteeISO/TC20, A

6、ircraftandspacevehicles , SubcommitteeSC15, Airframebearings . AnnexAformsanintegralpartofthisInternationalStandard.AnnexBisforinformationonly. ISO ISO13412:1997(E) iii Introduction AtthetimethisInternationalStandardwasdeveloped,theimperialunitssizesofairframeneedlerollerbearingswere dominantinworld

7、application.ThebasisforthisInternationalStandardistheimperialunitsprovidedinannexB.INTERNATIONALSTANDARD ISO ISO13412:1997(E) 1 AerospaceAirframeneedletrackroller,yoketype,singlerow, sealedInchseries 1Scope ThisInternationalStandardspecifiesthecharacteristics,boundarydimensions,tolerances,internalcl

8、earancesand permissiblestaticradialloadsofinchseries,singlerow,yoketype,needletrackrollersusedinairframeapplications. TheairframeneedletrackrollerscoveredbythisInternationalStandardaredesignedtooperateinthetemperature range54Cto+121C. 2Normativereferences Thefollowingstandardscontainprovisionswhich,

9、throughreferenceinthistext,constituteprovisionsofthis InternationalStandard.Atthetimeofpublication,theeditionsindicatedwerevalid.Allstandardsaresubjectto revision,andpartiestoagreementsbasedonthisInternationalStandardareencouragedtoinvestigatethepossibility ofapplyingthemostrecenteditionsofthestanda

10、rdsindicatedbelow.MembersofIECandISOmaintainregistersof currentlyvalidInternationalStandards. ISO68317: 1) , Heattreatedsteels,alloysteelsandfreecuttingsteelsPart17:Ballandrollerbearingsteels. ISO1132:1980, RollingbearingsTolerancesDefinitions. ISO2082:1986, MetalliccoatingsElectroplatedcoatingsofca

11、dmiumonironorsteel. ISO28591: 2) , SamplingproceduresforinspectionbyattributesPart1:Samplingplansindexedbyacceptable qualitylevel(AQL)forlotbylotinspection. ISO4520:1981, Chromateconversioncoatingsonelectroplatedzincandcadmiumcoatings. ISO5593:1997, RollingbearingsVocabulary. ISO6158:1984, Metallicc

12、oatingsElectroplatedcoatingsofchromiumforengineeringpurposes. ISO13411:1997,Aerospace Airframeneedleroller,cylindricalrollerandtrackrollerbearings Technical specification. AMS2417E:1993, Plating,zincnickelalloy. 3) 1) Tobepublished.(RevisionofISO68317:1976) 2) Tobepublished.(RevisionofISO28591:1989)

13、 3) Availablefrom: SAEInternational 400CommonwealthDrive Warrendale,PA150960001 USAISO13412:1997(E) ISO 2 3Definitions ForthepurposesofthisInternationalStandard,thedefinitionsgiveninISO5593apply. 4Symbols 4.1ForthepurposesofthisInternationalStandard,thesymbolsgiveninISO1132apply.Thesymbols(excepttho

14、se fortolerances)showninthefiguresandthevaluesgiveninthetablesdenotenominaldimensionsunlessspecified otherwise. 4.2ThefollowingadditionalsymbolsforbearingscoveredbythisInternationalStandardalsoapply. B overallwidth(overfacesofendwashers) C s permissiblestaticradialload d a clampingfacediameter R cro

15、wnradiusofouterring 5Requiredcharacteristics 5.1DimensionsTolerancesInternalclearancesLoads Forvalues,seetable1.Forconfiguration,seefigure1. Table1 Dimensionsinmillimetres, toleranceandclearancevaluesinmicrometres Diameter dDBC Tolerancevalues Rr s d a Internal clearance C s Mass code 0 -254 0 -381

16、D dmp K ia max. D Dmp K ea max. min. min. min. Radial, G r max. Axial, G a max. kN kg 03 4,826 19,05 7,93 7,12 11,2 5,34 0,01 04 6,35 22,225 9,53 8,77 254 0,55 13,2 8,49 0,02 06 9,525 26,988 12,7 11,56 17,1 16 0,05 08 12,7 33,338 15,88 14,74 318 21,5 25,7 0,08 10 15,875 38,1 19,05 17,91 444 24,3 37,

17、8 0,13 12 19,05 44,45 25,4 24,13 635 28,2 46 63,1 0,24 14 22,225 50,8 28,58 27,31 0 -18 25 +25 -25 41 698 31 635 85,8 0,34 20 31,75 63,5 31,75 30,48 762 41,3 112,5 0,53 24 38,1 76,2 0,81 50,8 168,5 1,07 28 44,45 87,312 58 196,1 1,23 32 36 50,8 57,15 98,425 109,538 38,1 36,58 1524 65,1 72,7 217,5 244

18、,6 1,55 1,92 40 63,5 120,65 79 51 266,4 2,33 44 69,85 127 85 288,2 2,49 ISO ISO13412:1997(E) 3 Key 1 Lubricationgroove 2 Lubricationgrooveandholes Figure1 5.2Surfaceroughness Rollers: R a =0,2 mmmax. Innerringraceway: R a =0,4 mmmax. Outerringraceway: R a =1,0 mmmax. Endwashers: R a =1,6 mmmax.atrol

19、lercontactarea 6Materials Rings: bearingsteelISO68317,type1,racewayhardness58HRCto66HRC(670HVto860HV). Rollers: bearingsteelISO68317,type1,heattreatedto58HRCto66HRC(670HVto860HV). Endwashers: steelheattreatedto51HRCto60HRC(528HVto697HV)atrollercontactarea. Seals: acetalresin,nylonorequivalent. 7Surf

20、acetreatment 7.1Bearingsmadeofconventionalrollingbearingsteel,shallhavetheexternalsurfacesoftheouterringchromium plated,andallotherexternalsurfaces,excepttheinnerringboresurface,shallbecadmiumorzincnickelplated. Blackoxidecoatingisapermissiblealternateonallinnerringexternalsurfaces(seeannexA). 7.2Wh

21、erecadmiumplatingisspecified(codelettersDandM),itshallbeinaccordancewithISO2082.Thethickness oftheplatingshallnotbelessthan7 mmandnotmorethan15 mm.ThebearingshallbeembrittlementrelievedwithinISO13412:1997(E) ISO 4 4hofplatingbyheattreatmentat(14010)Cforaminimumof8hfollowedbychromatetreatmentinaccord

22、ance withISO4520(codeletterDonly). 7.3Wherechromiumplatingisspecified(codelettersD,MandZ),itshallbeinaccordancewithISO6158.The thicknessoftheplatingshallbenotlessthan12 mm,8 mmonfacesandringchamfers,andnotmorethan25 mm. 7.4Wherezincnickelplatingisspecified(codeletterZ)itshallbeinaccordancewithAMS241

23、7E,type2.The thicknessoftheplatingshallnotbelessthan7 mmandnotmorethan15 mm. 8Lubrication ThebearingshallbeprelubricatedwitheithergreaseAorB,asspecifiedbythecustomer. NOTEDescriptionsofgreaseAandgreaseBaregiveninISO13411:1997,annexI. 9Designation BearingscoveredbythisInternationalStandardshallbedesi

24、gnatedonlyinthemannershowninthefollowing example: wherethefollowingcodesareapplied: greases: A=estertypegrease; B=synthetichydrocarbontypegrease; materials/surfacetreatments: D=material:lowalloybearingsteel; surfacetreatment:outerringchromiumplated; washercadmiumplatedwithchromateconversioncoating;

25、innerringcadmiumplatedwithchromateconversioncoating,orblackoxidecoated; M=material:lowalloybearingsteel; surfacetreatment:outerringchromiumplated; washercadmiumplatewithoutchromateconversioncoating; innerringcadmiumplatedwithoutchromateconversioncoating,orblackoxidecoated; Z=material:lowalloybearing

26、steel; surfacetreatment:outerringchromiumplated; washerzincnickelplated; innerringzincnickelplated,orblackoxidecoated. ISO ISO13412:1997(E) 5 10Identificationmarking Inadditiontothemanufacturersnameortrademark,eachbearingshallbepermanentlyandlegiblymarked,usingthe identityblockasdefinedinclause9.Mar

27、kingpositionandmethodshallbeatthemanufacturersoption. 11Technicalspecification AirframeneedletrackrollerssuppliedtothisInternationalStandardshallconformtotherequirementsofISO13411.ISO13412:1997(E) ISO 6 AnnexA (normative) Blackoxidecoating A.1Introduction Theserequirementscoverblackoxidecoatingsappl

28、iedtobearingrings. A.2Requirements A.2.1Materials Thematerialsfortheblackeningprocessesshallbeselectedbythecontractor.Theselectedmaterialsshallresultin blackcoatingsmeetingalltheapplicablerequirementsofthisannex. A.2.2Preparationofbasismetal Priortotheapplicationoftheblackcoatings,thebasismetalshall

29、bethoroughlycleanedwithmaterialsandmethodsat theoptionofthecontractor.Thecleaningprocessshallbeperformedwithoutmeasurableabrasionorerosion.The cleanedsurfacesshallbefreeofrust,scale,grease,oil,paintorotherforeignmatter. A.2.2.1Stressrelieftreatment Allringswhicharecoldformedorwhichcontainresidualten

30、silestress,suchasmaybeproducedbycold straightening,shallbegivenastressrelief.Thestressreliefmaybeconductedbeforeoraftercleaningandcoatingat thediscretionofthecontractor. A.2.2.2Coatingasafinalprocess Unlessotherwisespecified,theblackcoatingsshallbeappliedafterallmachiningandheattreatmenthavebeen acc

31、omplished. A.2.3Applicationofblackcoatings Thespecifiedblackcoatingshallbeappliedundercontrolledtimeandtemperatureconditions.Allequipment,together withsolutionsorbaths,shallbeproperlymaintainedandkeptfreeofdirtorpossiblecontaminants. A.2.3.1Effectonmechanicalproperties Theselectedprocessshallnotredu

32、cethehardnessoftheringsbeingprocessedorexposetheringstotemperatures inthetemperbrittlerangeofthematerial,norshallitcauseembrittlementofthesteel. A.2.3.2Surfaceattack Theprocessshallnotresultinanyattackofthesurface,eitherpittingorintergranular.Duringprocessing,daily determinationforthisbehaviourshall

33、bemadeusingamicroscopicmethodandexaminedatamagnificationwhichwill clearlyestablishthecondition.Ringswithpittedsurfacesorshowingintergranularattackshallberejected. A.2.4Alkalineoxidizingsolutions Oxidecoatingsshallbeformedfromaboilingalkalineoxidizingsolution. ISO ISO13412:1997(E) 7 A.2.4.1Rinsing Bl

34、ackoxidecoatedringsshallberinsedimmediatelyafterprocessinginastagnantwarmrinseat60Cto88C followedbythoroughcoldwaterrinsingtoeffectcompleteremovaloftheblackeningsolution. A.2.4.2Chromicaciddip Afterthecoldrinse,theringsshallbedippedforaminimumof30sina0,06percentsolutionofchromicacid(240cc chromicaci

35、dper380lofwater)maintainedatatemperatureof66Cto88CandapHof2to3.Afterthechromic aciddip,partsshallbedriedwithoutfurtherrinsingbyusingwarmdryair. A.2.4.3Alternatedip Duetohazardouswasteresultingfromtheuseofchromicacid,analternatedipprocessmaybeusedattheoptionof thecontractorprovideditsufficientlyneutr

36、alizesanyresidualsfromthecoatingprocess. A.2.5Coverageandcolour Coatingsshallcoverthebasismetalcompletelyandpassthesmuttest.Colourshallbeauniformblack.Aslight amountofsmut,whichisinherentintheprocess,shallnotbecauseforrejection.Thereshallbenoindicationofany reddishbrownorgreensmutwhentested(seeA.3.3

37、.1).Smut“spottiness“shallbeclassifiedasunsatisfactory requiringreprocessing. A.2.6Qualityofcoating(oxalicacidspottest) Theblackoxidecoatingspriortotheapplicationofapreservativeshallpasstheoxalicacidspottestforgoodquality coating(see3.3.2). A.2.7Treatmentofhighstrengthsteel Whenspecified,ringsshallbe

38、bakedat(19114)Cforthreehoursormoreorgivenanequivalentembrittlement relieftreatmentafterapplicationoftheoxidecoating.Whenspecifiedbytheprocuringactivity,highstrengthsteelparts shallbetestedforembrittlementrelief(seeA.3.3.3).Ifanembrittlementreliefbakeisrequired,itshallfollowthe chromicaciddiporaltern

39、atedip. A.3Qualityassurance A.3.1Responsibilityforinspection Unlessotherwisespecifiedinthecontractorpurchaseorder,thesupplierisresponsiblefortheperformanceofall inspectionrequirementsofthisannex.Exceptasotherwisespecified,thesuppliermayutilizehisownfacilitiesorany commercialfacilityforinspections. A

40、.3.2Sampling ThesinglesampleplanfornormalinspectionoftheclassificationofdefectsshallbeinaccordancewithISO28591. A.3.2.1Samplefornondestructivetests(visualinspection,coverage,colour,smutandworkmanship) SamplesshallbeselectedatrandomfromeachinspectionlotinaccordancewithISO28591,inspectionlevelIIand ac

41、ceptablequalitylevel(AQL)equalto1%defective. A.3.2.2Samplingfordestructivetests(oxalicacidspottest) SamplesshallbeselectedatrandomfromeachinspectionlotinaccordancewithISO28591,inspectionlevelIIand acceptablequalitylevel(AQL)equalto1%defective.ISO13412:1997(E) ISO 8 A.3.3Testmethods A.3.3.1Smuttest T

42、hetestshallbemadepriortotheapplicationofanycorrosionpreventativecompoundoraftervapourdegreasing. Blackoxidecoatedringsshallbevisuallyinspectedunderstronglighttoassureasatisfactoryappearance.Each sampleshallalsobewipedwithacleanwhiteclothforindicationsofsmut(seeA.2.5).Aslightamountofsmutwhichis inherentintheprocessisacceptableandshallnotbecauseforrejection. A.3.3.2Oxalicacidspottest Theblackoxidecoatedrings,priortotheapplicationofapreservative,shallbehandledwithcleancottonglovesor equivalent.Eachsampleshallhavedeposited,ononeflatspotofbla