1、BRITISH STANDARD AEROSPACE SERIES BS EN 3282:1994 Bearings, airframe rolling Rigid single row ball bearings in steel, cadmiumplated Diameterseries8 and9 Dimensions and loads The European Standard EN3282:1994 has the status of a BritishStandard UDC 629.7.02:621.822.74.004.1:669.14:669.738BSEN3282:199
2、4 This BritishStandard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15 August1994 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference M
3、CE/7 Draft for comment88/72196DC ISBN 0 580 21882 1 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsin
4、stitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad 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 Icel
5、and Ireland National Standards 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 Norm
6、alizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation UnitedKingdom BritishStandards Institution Amendments issued since publication Amd. No. Date CommentsBSEN3282:1994 BSI 01-2000 i Contents Page Cooperating organizations Inside front
7、cover National foreword ii 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-refe
8、rences Inside back cover Figure 1 4 Table 1 5BSEN3282:1994 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 EN3282:1994 Aerospace series Bearings, airframe rolling Rigid sing
9、le row ball bearings in steel, cadmium plated Diameter series8 and9 Dimensions and loads, published by the European Committee for Standardization (CEN). EN3282 was produced as a result of international discussions in which the UnitedKingdom took an active part. A British Standard does not purport to
10、 include all the necessary provisions 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,
11、pagesi andii, theEN title page, pages2 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 E
12、N3282 May1994 UDC 629.7.02:621.822.74.004.1:669.14:669.738 Descriptors: Aircraft industry, airframebearings, ball bearings, steel, cadmium dimensions, static loads English version Aerospace series Bearings, airframe rolling Rigid single row ball bearings in steel, cadmium plated Diameter series8 and
13、9 Dimensions and loads Srie arospatiale Roulements pour structures d aronefs Roulements en acier, cadmis, rigides, une range de billes Srie de diamtres8 et9 Dimensions et charges Luft- und Raumfahrt Flugwerklager Einreihige Rillenkugellager aus Stahl, verkadmet Durchmesserreihen8 und9 Mae und Belast
14、ungen This European Standard was approved by CEN on1994-05-19. 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 ref
15、erences concerning such national standards may be obtained on application to the Central 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
16、into its own language and notified to the Central Secretariat has 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,
17、 Switzerland and UnitedKingdom. CEN European Committee for Standardization 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. EN3282:1994 EEN3282:1994 BSI 01-2000 2 Foreword This Europ
18、ean Standard has been prepared by the European Association of Aerospace 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 me
19、mber countries of AECMA, prior to its presentation to CEN. This standard was submitted for formal vote, and the result was positive. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November1994, a
20、nd conflicting national standards shall be withdrawn at the latest by November1994. According to the Internal Regulation of CEN/CENELEC, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemb
21、ourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, UnitedKingdom.EN3282:1994 BSI 01-2000 3 1 Scope This standard specifies the characteristics of rigid single row ball bearings in steel 1) , cadmium plated, of diameter series8 and9 2)designed to withstand only slow rotations and oscill
22、ations under load. They are intended for use between fixed and moving 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, este
23、r type (code A), operational range73 C to+121 C or very high pressure grease, synthetic hydrocarbons, general purpose (code B), operational range54 C to+177 C (see EN3280), their field of application when lubricated with code A grease is limited to+121 C. 2 Normative references This European Standar
24、d incorporates by dated or undated reference provisions from other publications. 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 thi
25、s European Standard only when incorporated in it by amendment or revision. For 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, Steel FE-PL
26、31 Hardened and tempered Bars Aerospace series 3) . EN2133, Cadmium plating of steels with maximum specified tensile strength equal to or less than1450MPa and copper and copper alloys Aerospace series 3) . EN2221, Steel FE-PL31 Hardened and tempered Hollow bars3,5mmk ak 55mm Aerospace series 3) . EN
27、2222, 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. EN3283, Aerospace series Bearings, airframe rolling Rigid single row ball bearings in corrosion resisting steel D
28、iameter series8 and9 Dimensions and loads. 3 Definition For the purposes of this standard, the following definition applies: bearing full complement of balls (without cage), with filling slot 4 Symbols The definitions of tolerances and clearances are given in ISO1132. 1) For new design, use preferab
29、ly bearings in corrosion resisting steel, see EN3283 2) See ISO15 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 G a = axial internal clearance G r = radial internal cle
30、arance S ia = assembled bearing inner ring face runout with raceway S ea = assembled bearing outer ring face runout with raceway K ia = radial runout of assembled bearing inner ring K ea = radial runout of assembled bearing outer ring F amax. = permissible static axial load C s = permissible static
31、radial load.EN3282:1994 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; the dimensions and tolerances apply after protection. 5.2 Surface roughness Raceways
32、and rolling elements: R a =0,24m Bore, side faces and cylindrical outer surface: R a =0,84m The values apply prior to cadmium plating. 5.3 Materials 5.4 Surface treatment EN2133 thickness,54m to124m, on the inner and outer rings, the bore and raceways are not cadmium plated. As soon as possible afte
33、r plating, and within16h de-embrittlement heat treatment shall be carried out at a temperature and for a time (compatible with the performance requirements of the bearing) which shall be subject to written approval of the qualifying authorities. Inner ring : EN2031 or EN2221 or EN2222,59 HRC to64HRC
34、 Outer ring : EN2031 or EN2221 or EN2222,59 HRC to64 HRC Balls : EN 2031,59 HRC to64 HRC Shields : Corrosion resisting material Seals : Polytetrafluoroethylene (PTFE) or polytetrafluoroethylene (PTFE) reinforced with fibreglass. NOTE 1The installation of seals and shields is at the manufacturers opt
35、ion. NOTE 2The shields shall not extend beyond B . Figure 1 EN3282:1994 BSI 01-2000 5 Table 1 Table 1 Dimensions in millimetres d B D d1 Tolerances 4m r Mass kg/1000 parts Code Nominal min. % dmp % Dmp 10 10 6 22 13 0,3 to 0,8 11 12 12 24 15 13 15 15 7 28 17,6 16 17 17 30 19,6 18 20 20 32 23 20 25 2
36、5 37 28,1 23 30 30 42 33,1 26 35 35 47 38,3 30 40 40 52 43,3 38 50 50 65 53 55 60 60 10 78 63,5 100 d Code Internal Clearances 4m Runout tolerances max.4m Starting torque a in mN.m Permissible static loads b kN Axial max Radial Axial Radial Code Code Axial Radial G a G r S ia S ea K ia K ea P E F am
37、ax. C s 10 100 2 to13 40 40 25 40 4,5 12 4,8 10,6 12 3 to18 5 13 5,6 12,3 15 5,5 14 7,4 16,2 17 6 15 8 17,6 20 5 to20 6,5 16 7,9 17,3 25 8,5 18 9,8 21,5 30 14 20 11,1 24,5 35 6 to20 18 23 12,9 28,4 40 22 29 14,5 31,8 50 120 6 to23 32 47 19,6 43,1 60 150 8 to28 55 77 31,8 70 a Definition, see EN3280.
38、 b Axial and radial loads may be applied simultaneously. For ultimate static loads, see EN3280. 0 0,12 0 8 0 9 0 10 0 11 0 12 0 13 0 15EN3282:1994 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 a
39、ddition to the manufacturers own marking, each bearing shall be marked, on one side face only, using the identity block, see6. Marking position and method are at the manufacturers option. 8 Technical specification See EN3280.BSEN3282:1994 BSI 01-2000 National annex NA (informative) Committees respon
40、sible The UnitedKingdom 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: Ball and Roller Bearing Manufacturers Association Ministry of Defence So
41、ciety of British Aerospace Companies Ltd. National annex NB (informative) Cross-references The BritishStandards corresponding to the International Standards referred to in the text are as follows. International Standard Corresponding BritishStandard ISO15:1981 BS6267:1982 Specification for rolling b
42、earings: boundary dimensions for radial bearings ISO1132:1980 BS6107 Rolling bearings: tolerances Part1:1981 Glossary of termsBS EN 3282:1994 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It pr
43、esents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BS
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