1、BRITISH STANDARD AEROSPACE SERIES BS EN 2130:2001 Bearings, precision ball in corrosion resisting steel for instruments and equipment Technical specification The European Standard EN 2130:2001 has the status of a British Standard ICS 21.100.01; 49.025.10; 49.035 NO COPYING WITHOUT BSI PERMISSION EXC
2、EPT AS PERMITTED BY COPYRIGHT LAWBS EN 2130:2001 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 12 November 2001 BSI 12 November 2001 ISBN 0 5
3、80 37186 7 National foreword This British Standard is the official English language version of EN 2130:2001. The UK participation in its preparation was entrusted to Technical Committee ACE/21, Aerospace Fasteners, Fastening Systems, Details and Parts (International), which has the responsibility to
4、: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement these international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled
5、 “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance
6、with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related inter
7、national and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was
8、last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN2130 October2001 ICS49.035 Englishversion AerospaceseriesBearings,precisionballincorrosionresisting steelforinstrumentsandequipmentTechnicalspecification SriearospatialeRoulementsb
9、illesdeprcisionen acierrsistantlacorrosionpourinstrumentset quipementsSpcificationtechnique LuftundRaumfahrtPrzisionskugellageraus korrosionsbestndigemStahlfrInstrumenteundGerte TechnischeLieferbedingungen ThisEuropeanStandardwasapprovedbyCENon15January2001. CENmembersareboundtocomplywiththeCEN/CENE
10、LECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthre
11、eofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,Fr
12、ance,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyf
13、ormandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN2130:2001EEN2130:2001(E) 2 Foreword ThisEuropeanStandardhasbeenpreparedbytheEuropeanAssociationofAerospaceManufacturers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheappr
14、ovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyApril2002,andconflictingnationalstandardsshallbewithdrawnat thel
15、atestbyApril2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Swe
16、den,SwitzerlandandtheUnitedKingdom.EN2130:2001(E) 3 1 Scope Thisstandardspecifiestherequiredcharacteristics,inspectionandtestmethods,qualificationand acceptanceconditionsforprecisionballbearings,incorrosionresistingsteel,withanominalbore diameter 8mm,usedforaerospaceinstrumentsandequipment. Itisappl
17、icablewheneverreferenced. 2 Normativereferences ThisEuropeanStandardincorporates,bydatedorundatedreference,provisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyof
18、thesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferences,the latesteditionofthepublicationreferredtoapplies(includingamendments). ISO11321 RollingbearingsTolerancesPart1:Termsanddefinitions ISO28591 SamplingproceduresforinspectionbyattributesPar
19、t1:Samplingschemesindexedby acceptancequalitylimit(AQL)forlotbylotinspection ISO3290 RollingbearingsBallsDimensionsandtolerances EN2079 AerospaceseriesBearings,precisionball,withflangeincorrosionresistingsteel,for instrumentsandequipmentDimensionsandloads EN3042 AerospaceseriesQualityassuranceENaero
20、spaceproductsQualificationprocedure EN3446 AerospaceseriesBearings,precisionballwithoutflangeincorrosionresistingsteel,for instrumentsandequipmentDimensionsandloads EN10204 MetallicproductsTypesofinspectiondocuments 3 Definitions Forthepurposesofthisstandard,thefollowingdefinitionsapply: 3.1 Precisi
21、onballbearing 3.1.1 Shieldedrollingbearing Abearingwhoserollingelementsandracewaysareprotectedwithshieldsattachedtooneoftheringsand separatedfromtheotherbyasmallspace. 3.1.2 Sealedrollingbearing Abearingwhoserollingelementsandracewaysarecompletelyenclosedbysealsattachedtotheouterring andrubbingonthe
22、other.EN2130:2001(E) 4 3.2 Torques 3.2.1 Startingtorque Maximumtorquerequiredtostarttherotationofonering,withtheotherringheldstationary. 3.2.2 Averagetorque Arithmeticalaverageoftorquevaluesrecordedduringthetestcycle. 3.2.3 Testload Duringthetest,itisthespecifiedaxialloadappliedinthebearingrotationa
23、laxis. 3.3 Loadratings 3.3.1 Basicdynamicradialloadrating Thatconstantstationaryradialloadwhicharollingbearingcantheoreticallyendureforabasicratinglifeof 1000000revolutions. 3.3.2 Basicstaticradialloadrating Thatstaticradialloadwhichcorrespondsbycalculationtoastressof4200MPaatthemostheavilystressed
24、rollingelement/racewaycontactcentre. 3.4 Deliverybatch Thisconsistsofbearingswiththesameidentityblock,whichmaycomefromdifferentproductionbatches. 3.5 Dimensionalandgeometricalparameters AccordingtoISO11321EN2130:2001(E) 5 4 Requiredcharacteristics,inspectionandtestmethods Seetable1 Table1 Clause Cha
25、racteristics Requirements Inspectionandtestmethods Q a A b 4.1 Materials Inaccordancewiththe productstandardsor designdocumentation Chemicalanalysisorcertificate 3.1accordingtoEN10204, issuedbysemifinishedproduct manufacturer. XX 4.2 Dimensions Inaccordancewiththe productstandardsor designdocumentat
26、ion Themeasurementsshallbe carriedoutatatemperature between20 Cand25 C,witha relativehumiditylessthan55%. Bearingsshallbeplacedinthis atmosphereatleast1hbefore thebeginningofmeasurements. Onbearingswithshieldsorseals, themeasurementoftheexternal diametershallbedoneafter shieldsorsealshavebeenfitted.
27、 XX 4.3 Masses Inaccordancewiththe productstandardsor designdocumentation Suitablemethods X 4.4 Marking Inaccordancewiththe productstandardsor designdocumentation Itshallbelegibleand shallnotadverselyaffect thematerialorthefunc tioningofthebearing. Bearingsmayhaveno marking.Inthiseventall themarking
28、information shallbemarkedonthe packaging. Visualexamination X X 4.5 Hardness Inaccordancewiththe productstandardsor designdocumentation Suitableprocessesandmeasur inginstruments XX 4.6 Surface roughness Inaccordancewiththe productstandardsor designdocumentation Suitablemeasuringinstruments orvisualt
29、actilesamples c XX 4.7 Balls Inaccordancewiththe grade5requirementsof ISO3290 AccordingtoISO3290 X (continued)EN2130:2001(E) 6 Table1 (continued) Clause Characteristics Requirements Inspectionandtestmethods Q a A b 4.8 Lubrication Lubricantshallconform withannexA. Certificateofcomplianceissued bylub
30、ricantmanufacturer X 4.9 Seals (forsealed bearings) andshields (forshielded bearings). 4.9.1 Retention Shieldsmayormaynot beremovable.Their installationontheouter ringshallnotaffectits limitingdimensions. Whenshieldsandseals aresubmittedtonormal loadingandfunctioning conditions: Theyshallnot protrud
31、ebeyond lateralfacesofthe rings; Theyshallnotbein contactwiththecage ortheballs; Theyshallremain fastenedattheouter ring. Visualexamination X X 4.9.2 Sealing Sealsshall: rubontheinnerring andretainthe lubricant; preventtheintro ductionofforeignpar ticles. Visualexamination X X (continued)EN2130:2001
32、(E) 7 Table1 (continued) Clause Characteristics Requirements Inspectionandtestmethods Q a A b 4.10 Magnetism Afterdemagnetization, residualmagnetismshall notexceed200 whatevertheangular positionoftheouterring inrelationtotheinner ring. Duetotheinfluenceof handling,transportand storagethisvalueisonly
33、 guaranteedatthetime ofshipmentbytheman ufacturer. Suitablecontrolmethodinthe manufacturersfactory X 4.11 Runningaccuracy: radial: K ia , K ea axial: S ia , S ea Inaccordancewiththe productstandardsor designdocumentation Suitablecontrolmethod X X 4.12 Radialinternal clearance Inaccordancewiththe pro
34、ductstandardsor designdocumentation Therecordedvalueshall beinrelationtothe valuegivenbyabearing withknownradialplay whichisdefinedbythe measurementofits separatedcomponents. Appliedgaugepressureshallbe theminimumrequiredtoensurea metaltometalcontact,butshall notproduceasignificantelastical deformat
35、ionofthebearing. Radialinternalclearanceshall bemeasuredinthreedifferent angularpositionsaroundthebea ring. Itshallbedoneintheradialplane ofouterringwiththeinnerring heldstationary.Thehighestvalue ofthethreemeasurementsshall berecorded. XX 4.13 Startingtorque Accordingtotable2. Thesevaluesare achiev
36、ableonlyunder thelubricationconditions describedinthecolumn “inspectionandtest methods“anddonot applytosealedbearings. Preliminarytestconditions: Bearingsshallbecleaned,then lubricatedwithasynthetic lubricantconformingtoannexA. Lubricantquantityshallbeas specifiedintable3. Ifapplicable,shieldsshallb
37、e mountedonthebearings. Rotatethebearingsslowlybefore thetesttodistributethelubricant. XX (continued)EN2130:2001(E) 8 Table1 (continued) Clause Characteristics Requirements Inspectionandtestmethods Q a A b 4.13 (continued) Startingtorque Testconditions Testshallbedoneinaclean roomundercontrolledatmo
38、sp hereandonasupportexcluding vibrations.Thetemperatureshall bemaintainedbetween20 Cand 25 C,witharelative humidity10mm. Startingtorque Testsshallbedoneinbothload directionswithfiveconsecutive measurementstakenintheclock wiserotationfollowedbyfive consecutivemeasurementstaken inthecounterclockwisedi
39、rection. Testresultscorrelation betweendifferentmeasuring instruments Testresultscorrelationshallbe thesubjectofanagreement basedontheparticulartypeand modelofinstrumentused,unless thecorrelationbetweentest resultsavailablefromdifferent instrumentsiswellestablished andunderstoodbetweenthe manufactur
40、erandtheuser. Conditionstorecommencethe test Bearingswhichdonotsatisfythe initialtestshallbereconditioned. Twoadditionaltestsareallowed andallthebearingswhichfailthe thirdtestshallberejected. (continued)EN2130:2001(E) 9 Table1 (concluded) Clause Characteristics Requirements Inspectionandtestmethods
41、Q a A b 4.14 Basicstaticload ratings Aftertheremovalofthe loads,maximumvalues ofthestartingtorque shallconformwith valueslistedintable2. Applyfor1min: Aradialstaticloadequalto 0,7timesthebasicstaticradial loadrating; Anaxialstaticloadequalto 1,5timesthebasicstaticradial loadrating; Afterremovalofthe
42、loads, measurementofthestarting torqueinconformitywith4.13. X a Q=Qualificationtest b A=Acceptancetest c Thisinspectionshallbemadeintheabsenceofsurfacetreatment,which,forthepurposeofqualification,maybe removedbyachemicalprocess. Table2 Maximumstartingtorque Nm EN2079andEN3446 codenumbers GroupsAandD
43、 GroupsBEF GroupsCGHJ 103154155205 16 15 206256257 19 17 307308 20 19 310409 22 20 411511 65 59 413513516613615714 69 63 816 Bearingsofthese groupsarenot submittedtothis test. 76 69 Table3 Quantityoflubricant mg EN2079andEN3446 codenumbers min. max. 103154 02 03 155205206256257307308 03 06 310409411
44、511 12 18 413513516613615714 18 27 816 24 36EN2130:2001(E) 10 5 Qualityassurance 5.1 Productqualification AccordingtoEN3042andtables4and5 Table4Nondestructiveinspectionandteststobecarriedoutforqualification Serialnumberofsamples Typeofinspectionand tests a Defined in clause 1234567 Materials 4.10 XXXXXXX Dimensions 4.20 XXXXXXX Masses 4.30 XXXXXXX Marking 4.40 XXXXXXX Balls 4.70 XXXXXXX Lubrication 4.80 XXXXXXX Sealsandshields 4.9 0 XXX Magnetism 4.10 X X Ru
