1、BRITISH STANDARD AEROSPACE SERIES BS EN 3045:1994 Bearings, airframe rolling Rigid single row ball bearings in steel Diameter series0 and2 Reduced clearance category Dimensions and loads The European Standard EN3045:1993 has the status of a BritishStandard UDC 629.7.02:621.822.74.004.1:669.14BSEN304
2、5:1994 This BritishStandard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15February1994 BSI 01-2000 The following BSI references relate to the work on this standard: Committee refe
3、rence MCE/7 Draft for comment 88/72195 DC ISBN 0 580 22406 6 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 N
4、ormungsinstitut 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 Institut
5、e of Iceland 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 Espaol
6、a de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation UnitedKingdom BritishStandards Institution Amendments issued since publication Amd. No. Date CommentsBSEN3045:1994 BSI 01-2000 i Contents Page Cooperating organizations Insi
7、de front 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) C
8、ross-references Inside back cover Figure 1 4 Table 1 5BSEN3045:1994 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 EN3045:1993 Aerospace series Bearings, airframe rolling R
9、igid single row ball bearings in steel Diameter series0 and2 Reduced clearance category Dimensions and loads, published by the European Committee for Standardization (CEN). EN3045 was produced as a result of international discussions in which the UnitedKingdom took an active part. A British Standard
10、 does not purport to 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
11、inside front cover, 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 EUROPEN
12、NE EUROPISCHE NORM EN 3045 November 1993 UDC 629.7.02:621.822.74.004.1:669.14 Descriptors: Aircraft industry, airframe bearings, ball bearings, steel, dimensions, static loads English version Aerospace series Bearings, airframe rolling Rigid single row ball bearings in steel Diameter series0 and2 Re
13、duced clearance category Dimensions and loads Srie arospatiale Roulements pour structures daronefs Roulements en acier, rigides, une range de billes Sries de diamtres0 et2 Catgorie jeux rduits Dimensions et charges Luft- und Raumfahrt Flugwerklager Einreihige Rillenkugellager aus Stahl Durchmesserre
14、ihen0 und2 Reduzierte Lagerluft Mae und Belastungen This European Standard was approved by CEN on1993-11-15. CEN members are bound to comply with the requirements of the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standar
15、d without any alteration. Up-to-date lists and bibliographical references 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 lang
16、uage made by translation under the responsibility of a CEN member 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
17、, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, 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 CEN1993 Copyright reserved to all CEN me
18、mbers Ref.No.EN3045:1993EEN3045:1993 BSI 01-2000 2 Foreword This European 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 app
19、roval of the National Associations and the Official Services of the member 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 ofa national standard, either by publication of
20、an identical text or by endorsement, at the latest by May1994, and conflicting national standards shall be withdrawn at the latest by May1994. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland,
21、 France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, UnitedKingdom.EN3045:1993 BSI 01-2000 3 1 Scope This standard specifies the characteristics of rigid single row ball bearings in steel 1)of diameter series0 and2 2)designed to wi
22、thstand only slow rotations and oscillations under load. They are intended for use between fixed and moving parts of the aircraft structure and their control mechanisms, in particular the mounting of more than one bearing on the same shaft axis, which may require reduced clearances and runouts (axia
23、l and radial). 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 (code A), operational range73 C to+121 C or very high pressure grease, synthetic hydrocarbons, general purpose
24、 (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 Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cite
25、d 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 European Standard only when incorporated in it by amendment or revision. For undated references the latest edition
26、 of the publication referred to applies. ISO15, Rolling bearings Radial bearings Boundary dimensions General plan. ISO1132, Rolling bearings Tolerances Definitions. EN2031, Steel FE-PL31 Hardened and tempered Bars Aerospace series 3) . EN2221, Steel FE-PL31 Hardened and tempered Hollow bars3,5mmk ak
27、 55mm Aerospace series 3) . EN2222, Steel FE-PL31 Hardened and tempered Hand and die forgings Aerospace series 3) . EN3047, Aerospace series Bearings, airframe rolling Rigid single row ball bearings in corrosion resisting steel Diameter series0 and2 Reduced clearance category Dimensions and loads. E
28、N3280, Aerospace series Bearings, airframe rolling, rigid or self-aligning Technical specification. 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 clearan
29、ces are given in ISO1132. 1) For new design, use preferably bearings in corrosion resisting steel, see EN3047. 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 deviat
30、ion % ds = deviation of a single bore diameter % Ds = deviation of a single outside diameter G a = axial internal clearance G r = radial internal clearance S ia = assembled bearing inner ring face runout with raceway S aa = assembled bearing outer ring face runout with raceway K ia = radial runout o
31、f assembled bearing inner ringEN3045:1993 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 Bore,
32、 side faces and cylindrical outer surface: R a =0,84m. 5.3 Materials K aa = radial runout of assembled bearing outer ring F amax.= permissible static axial load C s = permissible static radial load. Inner ring : EN2031 or EN2221 or EN2222,59HRC to64HRC Outer ring : EN2031 or EN2221 or EN2222,59HRC t
33、o64HRC Balls : EN2031,59HRC to64HRC Shields : Corrosion resisting material Seals : Polytetrafluoroethylene (PTFE) or polytetrafluoroethylene (PTFE) reinforced with fibreglass. NOTE 1The installation of seals and shields is at the manufacturers option. NOTE 2The seal shall not extend beyondC. Figure
34、1 EN3045:1993 BSI 01-2000 5 Table 1 Table 1 Dimensions in millimetres d B C D d1 Tolerances 4m r Mass kg/1000 parts . Code Nominal min. % dmp % Dmp % ds % Ds 05 5 7 5 16 7,6 0,3 to0,8 4 06 6 8 6 19 8,6 9 08 8 9 7 22 10,6 12 10 10 10 8 26 12,6 21 12 12 28 14,7 24 15 15 11 9 32 17,7 32 17 17 12 10 35
35、20,2 42 20 20 14 12 42 23,5 72 25 25 47 28,6 85 30 30 15 13 55 34,1 0,3 to1 123 d Code Internal clearances 4m Runout tolerances max. 4m Starting torque inmN.m a Permissible staticloads 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 amax. C s 05 80 2 to9
36、15 20 6 8 2 4 3,1 6,8 06 2,5 5 4,2 9,2 08 3 6,5 5,4 11,8 10 4 7,5 7,7 17 12 100 3 to11 7 5 8,5 8,9 19,5 15 10 6 10 10,6 23,3 17 8 12 12,2 26,9 20 120 5 to13 20 8 10,5 15 18,7 41,2 25 13,5 18 21,2 46,6 30 19 25 28,5 62,6 a Definition, see EN3280. b Axial and radial loads may be applied simultaneously
37、. For ultimate static loads, see EN3280. 0 012 , 0 012 , 0 8 0 8 + 2 10 + 2 10 0 9 + 2 11 +3 11 0 11 + 3 14 0 10 + 3 13 0 13 + 4 17EN3045:1993 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 addit
38、ion 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.BSEN3045:1994 BSI 01-2000 National annex NA (informative) Committees responsibl
39、e 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: Ball and Roller Bearing Manufacturers Association Ministry of Defence Socie
40、ty 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 bear
41、ings: boundary dimensions for radialbearings ISO1132:1980 BS6107 Rolling bearings: tolerances Part1:1981 Glossary of termsBS EN 3045:1994 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presen
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