EN 3048-2001 en Aerospace series - Bearings spherical plain in corrosion resisting steel with self-lubricating liner - Light series - Elevated load at ambient temperature - Dimensi.pdf

1、BRITISH STANDARD AEROSPACE SERIES BS EN 3048:2001 Bearings, spherical plain in corrosion resisting steel with self - lubricating liner Light series Elevated load at ambient temperature Dimensions and loads The European Standard EN 3048:2001 has the status of a British Standard ICS 21.100.01.49.025.1

2、0 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 3048:2001 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 9 Novem

3、ber 2001 BSI 9 November 2001 ISBN 0 580 37220 0 National foreword This British Standard is the official English language version of EN 3048:2001. It supersedes BS EN 3048:1992 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee ACE/12/1, Aerospace Fastene

4、r, fastening systems, details and parts (International), which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement these international or European publications may be f

5、ound in the BSI Standards Catalogue under the section entitled “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 Standa

6、rds are responsible for their correct application. Compliance 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 cha

7、nge, and keep the UK interests informed; monitor related international 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 8, an inside back cover and a back cover. The BSI copyright dat

8、e displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3048 October2001 ICS49.035 SupersedesEN3048:1992 Englishversion AerospaceseriesBearings,sphericalplainincorrosion resis

9、tingsteelwithselflubricatinglinerLightseriesElevated loadatambienttemperatureDimensionsandloads SriearospatialeRotulesenacierrsistantla corrosiongarnitureautolubrifianteSrielgrecharge levetempratureambianteDimensionsetcharges LuftundRaumfahrtGelenklageraus korrosionsbestndigemStahlmitselbstschmieren

10、der BeschichtungLeichteReiheHoheBelastungbei RaumtemperaturMaeundBelastungen ThisEuropeanStandardwasapprovedbyCENon29December2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration

11、.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitso

12、wnlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EURO

13、PEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3048:2001EEN3048:2001(E) 2 Foreword ThisEuropeanStandardhasbee

14、npreparedbytheEuropeanAssociationofAerospaceManufacturers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandar

15、dshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyApril2002,andconflictingnationalstandardsshallbewithdrawnat thelatestbyApril2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesarebound

16、toimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN3048:2001(E) 3 1 Scope Thisstandardspecifiesthecharacteristicsofsphericalplainbearingsincor

17、rosionresistingsteel,withself lubricatingliner,lightseries,forelevatedloadatambienttemperature,withorwithoutswaginggroove, intendedforuseinthefixedormovingpartsoftheaircraftstructureandcontrolmechanisms. Theyshallbeusedinthetemperaturerange55 Cto+163 C. 2 Normativereferences ThisEuropeanStandardinco

18、rporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyame

19、ndmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies(includingamendments) . ISO11321 RollingbearingsTolerancesPart1:Termsanddefinitions lSO8075 AerospaceSurfacetreatmentofhardenablestainlesssteelparts EN2030 SteelFEPM43HardenedandtemperedBars D 150mmAerospaceseries

20、 1) EN2132 ElectrodepositionofchromiumforengineeringpurposesAerospaceseries 1) EN2424 AerospaceseriesMarkingofaerospaceproducts EN2539 AerospaceseriesSteelFEPM3801(X5CrNiCu174)AirmeltedSolutiontreated andprecipitationtreatedBar aor D 200mm Rm 965MPa 2) EN 2755 Aerospaceseries Bearings,sphericalplain

21、incorrosionresistingsteelwith selflubricatinglinerElevatedloadsatambienttemperatureTechnical specification 2) 3 Symbolsanddefinitions ThetolerancedefinitionsaregiveninlSO11321. dmp = singleplanemeanborediameterdeviation ds = deviationofasingleborediameter Dmp = singleplanemeanoutsidediameterdeviatio

22、n Ds = deviationofasingleoutsidediameter = angleoftiltoftheouterringwithrespecttotheinnerring,thesphericalsurfaceoftheouterringbeing completelyincontactwiththeinnerring 4 Requiredcharacteristics 4.1 Configuration,dimensions,tolerancesandmass Accordingtofigures1and2,andtable1.Thedimensionsareexpresse

23、dinmillimetresandapplyafter surfacetreatment. 4.2 Surfaceroughness 1) PublishedasAECMAStandardatthedateofpublicationofthisstandard 2) PublishedasAECMAPrestandardatthedateofpublicationofthisstandardEN3048:2001(E) 4 Accordingtofigures1and2.Thevaluesareexpressedinmicrometresandapplybeforesurfacetreatme

24、nt. Key a liner Figure1Bearingwithoutswaginggroove,codeSEN3048:2001(E) 5 Key a liner Figure2Bearingwithswaginggrooves,codeREN3048:2001(E) 6 Table1 dBC D Tolerances m d 1 d 2 K l 1 l 2 r 1 r 2 r 3 Mass g/piece Code nom. 0 0,06 0,1 dmp ds Dmp Ds min. +0,1 0 0 0,2 max. +0,1 0m i n . b 0,5 12 12 10 7 22

25、 14,3 20,2 17,5 0,9 11 17 15 24,2 15 a 15 12 9 26 18,7 24 22,3 9 26 17 28,2 17 a 17 14 10 30 0 8 +3 11 0 9 +6 15 21,2 28 25,5 1 0,5 to 0,8 10 40 20 33,2 20 a 20 16 12 35 24,9 33 29,8 0,7 0,2 9 65 25 39,4 25 a 25 20 16 42 30 38,8 36,1 7 115 30 44,4 30 a 30 22 18 47 0 10 +8 19 0 11 +8 19 34,3 43,8 40,

26、8 0,9 1,2 0,6 to 1 6 160 35 35 25 20 55 40,5 51,8 47,6 229 40 40 28 22 62 45 58,8 53,1 315 45 45 32 25 68 51,3 64,8 60,5 460 50 50 35 28 75 0 12 +3 15 0 13 +10 23 58,2 71,8 68 1,4 1,5 0,1 to 0,4 0,8 to 1,2 0,3 7 30 560 a Code1addedtotheendoftheidentityblock b Maximumvaluesfortheuser 4.3 Loadsandstar

27、tingtorques Accordingtotable2 Table2 Permissiblestatic loads d Kennzahl Radial C s Axial a C a Permissibledynamic radialloads 25000cycles Startingtorques kN kN kN Nm 12 46,4 3,7 25,5 15 79,5 8 43,7 17 102,6 10,6 56,4 20 147,4 17 81 0,12to0,8 25 221,7 28,7 110,8 0,25to1 30 285,6 38,2 142,8 35 374,5 4

28、8,7 187,3 0,4to2 40 462,7 60,7 231,3 45 605,8 81,6 302,9 50 768 105,6 384 0,6to2,7 a Thesevaluesapplytobearingswithoutswaginggroove.Forbearingswithswaging grooves,thepushoutloadsmaybesmallerthanthesevalues.EN3048:2001(E) 7 4.4 Materials Innerring:steelaccordingtoEN2030,hardness55HRCto62HRC Outerring

29、:steelaccordingtoEN2539,hardness28HRCto37HRCbeforeswaging Liner:selflubricatinglowfrictionwearresistantmaterialconsistentwiththerequirementsofEN2755 4.5 Surfacetreatmentontheinnerringsolely Seetable3 Table3 Treatment Specification Code Chromiumplatingonthesphericalsurface EN2132, thickness15mto50m P

30、 Passivation ISO8075 T without(neitherchromiumplating,norpassivation) (nocode) 5 Designation EXAMPLE: Descriptionblock Identitiy block BEARING EN3048S 12 PT A 1 Numberofthisstandard Swaginggroovescode(seefigures1und2) Codefordiameter d (siehetable1) Surfacetreatmentcode(see4.5) Technologycode(seetab

31、le4) Dimensionalvarietiescodeforswaginggrooves(seetable1) NOTE:Ifnecessary,thecode I 9005shallbeplacedbetweenthedescriptionblockandtheidentityblock. Table4 Technology Code bondedliner A injectedormouldedliner B bondedlinerorinjectedormouldedliner,atthe manufacturersoption (nocode)EN3048:2001(E) 8 6

32、Marking AccordingtoEN2424,styleA Themarkingpositionisatthemanufacturersoption. Bearingsorderedwithouttechnologycodeshallbedeliveredmarkedwiththecodeoftechnologyused. 7 Technicalspecification AccordingtoEN2755BS EN 3048:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution B

33、SI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should mak

34、e sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee res

35、ponsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, in

36、ternational and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy to supply the BSI implementation o

37、f those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information s

38、ervices are also available which give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For

39、 details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publi

40、cations of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written perm

41、ission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070.