1、BRITISH STANDARD AEROSPACE SERIES BS EN 2015:1989 Specification for Bearings-airframe rolling double row, self aligning ball bearings in steel diameter series2Dimensions and loads UDC 629.7.02:681.822.7.004.1:681.828:669.14BSEN2015:1989 This British Standard, having been prepared under the direction
2、of the Aerospace Standards Policy Committee, waspublished under the authorityof the Board of BSI andcomes into effect on 29September1989 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference MCE/7 Draft for comment 76/74662DC ISBN 0 580 17650 9 Cooperating
3、 organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizations of the following Western European countries. Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denma
4、rk Dansk Standardiseringsraad Finland Suomen Standardisoimisliito,r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazion
5、e Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus de Qualidade Spain Instituto Espaol de Normalizacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institu
6、tion Amendments issued since publication Amd. No. Date of issue CommentsBSEN2015:1989 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover National foreword ii Brief history 2 Text of EN 2015 3 National appendix A Inside back cover National appendix B Inside back coverBSEN2015:19
7、89 ii BSI 01-2000 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN2015“Bearings-airframe rolling double row, self aligning ball bearings in steel diameter series2. Dimensions and loads.
8、 Aerospace series”, published by the European Committee for Standardization (CEN). EN2015 was produced as a result of international discussion in which the UK took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards ar
9、e responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 6, an inside back cover and a back co
10、ver. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2015 June 1984 UDC 629.7.02:681.822.7.004.1:681.828:669.14 Key words: Aircra
11、ft industry, airframe bearings, self aligning bearings, ball bearings, steel, dimensions, static loads English version Bearings-airframe rolling double row, self aligning ball bearings in steel diameter series2 Dimensions and loads Aerospace series Roulements pour structures daronefs roulements en a
12、cier, rotule sur deux ranges de billes srie de diamtres2 Dimensions et charges Srie arospatiale Luft- und Raumfahrt Flugwerklager zweireihige Pendelkugellager aus Stahl Durchmesserreihe2 Masze und Belastungen This European Standard was accepted by CEN on1984-06-21. CEN members are bound to comply wi
13、th the requirements of CEN Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Cent
14、ral Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to CEN Central Secretariat has the same status as
15、the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normal
16、isation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN1984 Copyright reserved to all CEN members Ref. No. EN2015:1984EEN2015:1984 BSI 01-2000 2 Brief history This European Standard has been prepared by the European Association of Aerospace Constructors (A
17、ECMA). This Standard has been accepted by the European Committee for Standardization (CEN) after inquiries and votes carried out in accordance with the rules of this Committee. Contents Page Brief history 2 1 Scope 3 2 Fields of application 3 3 References 3 4 Definitions 3 5 Symbols 3 6 Materials 3
18、7 Required characteristics 4 8 Designation 5 9 Marking 5 10 Technical specification 5 Figure 4 Table 4EN2015:1984 BSI 01-2000 3 1 Scope The standard specifies the characteristics, of double row self aligning ball bearings of diameter series2 1)designed to withstand only slow rotations and oscillatio
19、ns under load. They are intended for use between fixed and moving parts of the aircraft structure and their control mechanisms. 2 Fields of application The airframe roller bearings defined in the present standard shall be used from54 to+150 C. However, being lubricated with the following greases: ve
20、ry high pressure grease, ester type (code A), operational range73to+121 C or very high pressure grease, synthetic hydrocarbons, general purpose (codeB), operational range54to+177 C (refer to EN2063), their field of application when lubricated with code A grease shall be limited to+121 C. 3 Reference
21、s ISO 15:1981, Rolling bearingsRadial bearingsBoundary dimensionsGeneral plan. ISO/R 201:1961, Rolling bearingsRadial internal clearance in unloaded radial groove type ball bearings with cylindrical boreValues. EN 2031, Steel FE-PL31, Hardened and tempered, Bars. EN 2063, Bearings, airframe rollingT
22、echnical Specification. 4 Definitions Self aligning ball bearings, full complement (without cage), double row. 5 Symbols 6 Materials Inner ring: Steel EN2031 2) ,59to64HRC Outer ring: Steel EN 2031 2) 59to64HRC Balls: Steel EN 2031 2) ,59to64HRC Shields: Corrosion resisting material Seals: Polytetra
23、fluoroethylene (PTFE); or polytetrafluoroethylene (PTFE)glass fibre reinforced plastic material. 1) See ISO15. % ds = the deviation of a single bore diameter % Ds = the deviation of a single outside diameter % dmp = single plane mean bore diameter deviation % Dmp = single plane mean outside diameter
24、 deviation C s = permissible static radial load. F a = bearing axial load=axial component of actual bearing load F a max. = permissible static axial load F r = static radial load P or = static equivalent radial load Y s = coefficient of axial load. 2) For new designs, bearings in corrosion resisting
25、 steel should be used for preference, see EN2017.EN2015:1984 4 BSI 01-2000 7 Required characteristics 7.1 DimensionsTolerancesClearancesLoadsMass Configuration shall correspond with theFigure. Dimensions shall correspond with theTable. Bearings can be assembled with either seals or shields. 7.2 Surf
26、ace roughness R a =0,24m for the raceway and rolling elements. R a =0,84m for the bore, side faces and cylindrical outer surface Table Figure Dimensions in millimetres d D C B d 1 nom. Tolerances m r Radial internal clearance Permissible static radial load C s kN Mass kg/1 000 parts . Code Nominal %
27、 dmp % Dmp % ds % Ds normal group m 1) group3 m 1) 05 5 16 8 12 7,6 0,3 to 0,8 2 to 13 10 to 20 3,7 9 06 6 19 10 14 8,6 5,7 14 08 8 24 15 11,1 9,1 30 10 10 30 14 20 13,6 14,1 57 12 12 32 15,4 3 to 18 13 to 23 16,1 62 15 15 35 18,5 18,8 75 17 17 40 16 22 21,2 24,3 110 20 20 47 18 24 23,6 5 to 20 15 t
28、o 25 32,6 170 F amax. = where Y s =3,2 Equivalent static radial load P or. Load P orresulting from radial and axial loads is calculated according to formula P or =F r +3,2F aand shall be less than or equal to load C sgiven in the table, see EN2063. For ultimate static loads, see EN 2063. 1) See ISO/
29、R201. 0 0,12 0 0,12 0 8 0 8 +2 10 +2 10 0 9 +2 11 0 11 +3 11 +3 14 0 10 +3 13 C s Y s -EN2015:1984 BSI 01-2000 5 8 Designation Each bearing shall only be designated as in the following example: where the following codes are applied: NOTEIf necessary, the originator codeS9005 may be introduced betwee
30、n the description block and the identity block. 9 Marking In addition to the manufacturers own marking, each bearing shall be marked, on one side face only using the identity block as defined inclause8 of this standard. Marking position and method are at the manufacturers option. 10 Technical specif
31、ication Bearings supplied to this standard shall conform with the requirements of EN2063. Greases: A = ester type grease B = synthetic hydrocarbon type grease Types: E = with seals P = with shields Clearances: L = internal radial clearance, group3 N = internal radial clearance, normal group6 blankBS
32、EN2015:1989 BSI 01-2000 National appendix A The United Kingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Committee(ACE/-) to Technical Committee MCE/7 upon which the following bodies were represented: Advanced Manufacturing Technology
33、Research Institute Ball and Roller Bearing Manufacturers Association Engineering Equipment and Materials Users Association Institution of Production Engineers Ministry of Defence North East Coast Institution of Engineers and Shipbuilders Society of British Aerospace Companies Limited National append
34、ix B The British Standards corresponding to the European and International Standards referred to in the text are identical in number and title with those given in clause3 with the exception of ISO15 for which the corresponding British Standard is BS6267:1982 (content identical) and ISO/R201 for whic
35、h there is no corresponding British Standard.BS EN 2015:1989 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is i
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