BS EN 3287-1994 Bearings airframe rolling - Double row self-aligning ball bearings in steel - Diameter series 2 Dimensions and loads《机体轴承 钢制的双列自调心球轴承 2号直径系列 尺寸和负荷》.pdf

《BS EN 3287-1994 Bearings airframe rolling - Double row self-aligning ball bearings in steel - Diameter series 2 Dimensions and loads《机体轴承 钢制的双列自调心球轴承 2号直径系列 尺寸和负荷》.pdf》由会员分享，可在线阅读，更多相关《BS EN 3287-1994 Bearings airframe rolling - Double row self-aligning ball bearings in steel - Diameter series 2 Dimensions and loads《机体轴承 钢制的双列自调心球轴承 2号直径系列 尺寸和负荷》.pdf（12页珍藏版）》请在麦多课文档分享上搜索。

1、BRITISH STANDARD AEROSPACE SERIES BSEN 3287:1994 Bearings, airframe rolling Double row self-aligning ball bearings in steel Diameter series2 Dimensions and loads The European Standard EN3287:1994 has the status of a BritishStandard UDC629.7.02:681.822.7.004.1:681.828:669.14BSEN3287:1994 This British

2、Standard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15September1994 BSI01-2000 The following BSI references relate to the work on this standard: Committee referenceMCE/7 Draft fo

3、r comment88/72196DC ISBN 0 580 21889 9 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this EuropeanStandard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsinstitut Belgium

4、 Institut belge de normalisation Denmark Dansk Standard Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Stand

5、ards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sw

6、eden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom BritishStandardsInstitution Amendments issued since publication Amd. No. Date CommentsBSEN3287:1994 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover National foreword ii

7、 Foreword 2 1 Scope 3 2 Normative references 3 3 Definition 3 4 Symbols 3 5 Required characteristics 4 6 Designation 6 7 Marking 6 8 Technical specification 6 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back cover F

8、igure 1 4 Table 1 5BSEN3287:1994 ii BSI 01-2000 National foreword This BritishStandard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN3287:1994 Aerospace series Bearings, airframe rolling Double row self-aligning ball bearin

9、gs in steel Diameter series2 Dimensions and loads, published by the European Committee for Standardization (CEN). EN3287 was produced as a result of international discussions in which the United Kingdom took an active part. A British Standard does not purport to include all the necessary provisions

10、of a contract. Users of British Standards are 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, pagesi andii, theEN title page, pages2

11、 to6, an inside back cover and a back cover. 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 EN3287 June1994 UDC629.7.02:681.822.7.0

12、04.1:681.828:669.14 Descriptors: Aircraft industry, airframe bearings, self-aligning bearings, ball bearings, steel, dimensions, static loads English version Aerospace series Bearings, airframe rolling Doublerow self-aligning ball bearings in steel Diameterseries2 Dimensions and loads Srie arospatia

13、le Roulements pour structures daronefs Roulements en acier, rotule, sur deux ranges de billes Srie de diamtres2 Dimensions et charges Luft- und Raumfahrt Flugwerklager Zweireihige Pendelkugellager aus Stahl Durchmesserreihe2 Mae und Belastungen This EuropeanStandard was approved by CEN on1994-06-07.

14、 CEN members are bound to comply with the CEN/CENELEC 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

15、application to the Central Secretariat or to any CEN member. This EuropeanStandard 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 the Central Secretariat h

16、as the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Sta

17、ndardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref.No.EN3287:1994EEN3287:1994 BSI 01-2000 2 Foreword This EuropeanStandard has been prepared by the European Association of Aero

18、space Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This st

19、andard was submitted for formal vote, and the result was positive. This EuropeanStandard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December1994, and conflicting nationalstandards shall be withdrawn at the latest b

20、y December1994. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, Unite

21、d Kingdom.EN3287:1994 BSI 01-2000 3 1 Scope This standard specifies the characteristics of double row self-aligning ball bearings in steel 1)of diameter series2 2)designed to withstand only slow rotations, oscillations and/or swivelling under load. They are intended for use between fixed and moving

22、parts of the aircraft structure and their control mechanisms. The airframe rolling bearings defined in this standard are used from54 C to+150 C. However, being lubricated with the following greases: very high pressure grease, ester type (codeA), operational range73 C to+121 C or very high pressure g

23、rease, synthetic hydrocarbons, general purpose (codeB), operational range54 C to+177 C (seeEN3280), their field of application when lubricated with codeA grease is limited to+121 C. 2 Normative references This EuropeanStandard incorporates by dated or undated reference provisions from other publicat

24、ions. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. F

25、or undated references the latest edition of the publication referred to applies. ISO15, Rolling bearings Radial bearings Boundary dimensions General plan. ISO1132, Rolling bearings Tolerances Definitions. EN2031, SteelFE-PL31 Hardened and tempered Bars Aerospace series 3) . EN2221, SteelFE-PL31 Hard

26、ened and tempered Hollow bars3.5mmk ak 55mm Aerospace series 3) . EN2222, Steel FE-PL31 Hardened and tempered Hand and die forgings Aerospace series 3) . EN3280, Aerospace series Bearings, airframe rolling, rigid or self-aligning Technical specification. EN3289, Aerospace series Bearings, airframe r

27、olling Double row self-aligning ball bearings in corrosion resisting steel Diameter series2 Dimensions and loads. 3 Definition For the purposes of this standard, the following definition applies: bearing full complement of balls (without cage) 4 Symbols The definitions of tolerances and clearances a

28、re given in ISO1132. 1) For new design, use preferably bearings in corrosion resisting steel, seeEN3289. 2) SeeISO15. 3) Published as AECMA Standard at the date of publication of this standard. % dmp = single plane mean bore diameter deviation % Dmp = single plane mean outside diameter deviation % d

29、s = deviation of a single bore diameter % Ds = deviation of a single outside diameter G a = axial internal clearance G r = radial internal clearance K ia = radial runout of assembled bearing inner ring K ea = radial runout of assembled bearing outer ring F a max. = permissible static axial load C s

30、= permissible static radial loadEN3287:1994 4 BSI 01-2000 5 Required characteristics 5.1 Dimensions Tolerances Clearances Loads Mass Configuration: seeFigure 1; the bearings are fitted with either seals or shields. Values: seeTable 1. 5.2 Surface roughness Raceways and rolling elements: R a=0.24m Bo

31、re, side faces and cylindrical outer surface: R a=0.84m. 5.3 Materials P or = static equivalent radial load F a = bearing axial load, axial component of actual bearing load F r = bearing radial load, radial component of actual bearing load. Inner ring : EN2031 or EN2221 or EN2222,59HRC to64HRC Outer

32、 ring : EN2031 or EN2221 or EN2222,59HRC to64HRC Balls : EN2031,59HRC to64HRC Shields : Corrosion resisting material Seals : Polytetrafluoroethylene (PTFE) or polytetrafluoroethylene (PTFE) reinforced with fibreglass. NOTEThe installation of seals and shields is at the manufacturers option. Figure 1

33、 EN3287:1994 BSI 01-2000 5 Table 1 Table 1 Dimensionsinmillimetres d B C D d1 min. F max. a G max. a Tolerances 4m r Mass Kg/1000 parts Code Nominal % dmp % Dmp % ds % Ds 05 5 12 8 16 7,6 10 12 0,3 to 0,8 9 06 6 14 10 19 8,6 12 14,4 14 08 8 15 24 11,1 13 19,8 30 10 10 20 14 30 13,6 17 24 57 12 12 32

34、 15,4 26,5 62 15 15 35 18,5 30 75 17 17 22 16 40 21,2 19 34 110 20 20 24 18 47 23,6 20 39,7 170 d Code Internal Clearances 4m Runout tolerances radial max. 4m Starting torque bin mN.m Permissible static loads c kN Axial max. G a Radial G r Special group Code R Normal group Code N Group 3 Code L Spec

35、ial group Code R Normal group Code N Group 3 Code L K ia K ea Code P Code E Axial F amax. Radial C s 05 70 100 2 to 6 2 to 13 10 to 20 25 40 4 8 1,2 3,7 06 4,5 9 1,8 5,7 08 80 2 to 7 5,5 10 2,8 9,1 10 120 7,5 12 4,4 14,1 12 3 to9 3 to18 13 to23 9 14 5 16,1 15 12 18 5,9 18,8 17 160 18 25 7,6 24,3 20

36、180 5 to10 5 to20 15 to25 23 35 10,2 32,6 a Dimensions of the shields are at the manufacturers option within the limits of F and G. b Definition, see EN3280. c F r +3,2F a= P or ; P orshall bek C s . For ultimate static loads, seeEN3280. 0 0,12 0 0,12 0 8 0 8 + 2 10 + 2 10 0 9 + 2 11 0 11 + 3 11 + 3

37、 14 0 10 + 3 13EN3287:1994 6 BSI 01-2000 6 Designation Example: NOTEIf necessary, the codeI9005 shall be placed between the description block and the identity block. 7 Marking In addition to the manufacturers own marking, each bearing shall be marked, on one side face only, using the identity block,

38、 see6. Marking position and method are at the manufacturers option. 8 Technical specification SeeEN3280.BSEN3287:1994 BSI 01-2000 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this EuropeanStandard was entrusted by the Aerospace Standar

39、ds Policy Committee (ACE/-) to Technical CommitteeMCE/7 upon which the following bodies were represented: Ball and Roller Bearing Manufacturers Association Ministry of Defence Society of British Aerospace Companies Ltd. National annex NB (informative) Cross-references The BritishStandards correspond

40、ing to the InternationalStandards referred to in the text are as follows. InternationalStandard Corresponding BritishStandard ISO15:1981 BS6267:1982 Specification for rolling bearings: boundary dimensions for radial bearings ISO76:1987 BS5645:1987 Specification for static load ratings for rolling be

41、arings ISO1132:1980 BS6107 Rolling bearings: tolerances Part 1:1981 Glossary of termsBSEN 3287:1994 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

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