1、BRITISH STANDARD AEROSPACE SERIES BSEN 3047:1994 Bearings, airframe rolling Rigid single row ball bearings in corrosion resisting steel Diameter series0 and2 Reduced clearance category Dimensions and loads The European Standard EN3047:1993 has the status of a BritishStandard UDC629.7.02:621.822.74.0
2、04.1:669.14.018.89BSEN3047:1994 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 BSI01-2000 The following BSI references relate to the work on this
3、standard: Committee referenceMCE/7 Draft for comment88/72195DC ISBN 0 580 22408 2 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
4、 Oesterreichisches Normungsinstitut 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 Te
5、chnological Institute 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 Sp
6、ain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom BritishStandards Institution Amendments issued since publication Amd. No. Date CommentsBSEN3047:1994 BSI 01-2000 i Contents Page Cooperati
7、ng organizations Inside 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 ann
8、ex NB (informative) Cross-references Inside back cover Figure 1 4 Table 1 5BSEN3047:1994 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 EN3047:1993 Aerospace series Bearing
9、s, airframe rolling Rigid single row ball bearings in corrosion resisting steel Diameter series0 and2 Reduced clearance category Dimensions and loads, published by the European Committee for Standardization (CEN). EN3047 was produced as a result of international discussions in which the United Kingd
10、om took an active part. A British Standard 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
11、This document comprises a front cover, an 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 f
12、ront cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN3047 November1993 UDC629.7.02:621.882.74.004.1:669.14.018.89 Descriptors: Aircraft industry, airframe bearings, ball bearings, corrosion resisting steel, dimensions, static loads English version Aerospace series Bearings, airframe rollin
13、g Rigid single row ball bearings in corrosion resisting steel Diameter series0 and2 Reduced clearance category Dimensions and loads Srie arospatiale Roulements pour structures daronefs Roulements en acier rsistant la corrosion, rigides, une range de billes Sries de diamtres0 et2 Catgorie jeux rduits
14、 Dimensions et charges Luft- und Raumfahrt Flugwerklager Einreihige Rillenkugellager aus korrosionsbestndigem Stahl Durchmesserreihen0 und2 Reduzierte Lagerluft Mae und Belastungen This EuropeanStandard was approved by CEN on1993-11-15. CEN members are bound to comply with the CEN/CENELEC Internal R
15、egulations which stipulate the conditions for giving this EuropeanStandard 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 Central Secretariat or to any CEN member. This
16、 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 has the same status as the official versions. CEN members are the
17、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 Standardization Comit Europen de Normalisation Europisches Komitee f
18、r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN 1993 Copyright reserved to CEN members Ref.No.EN3047:1993EEN3047:1993 BSI 01-2000 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carri
19、ed 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 standard was submitted for Formal Vote, and the result was pos
20、itive. 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 May1994, and conflicting national standards shall be withdrawn at the latest by May1994. According to the CEN/CENELEC Internal Regulations, th
21、e following countries are bound to implement this EuropeanStandard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom.EN3047:1993 BSI 01-2000 3 1 Scope This standard specifies th
22、e characteristics of rigid single row ball bearings in corrosion resisting steel of diameter series0 and2 1)designed to withstand 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 parti
23、cular the mounting of more than one bearing on the same shaft axis, which may require reduced clearances and runouts (axial 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,
24、 ester type (codeA), operational range73 C to+121 C or very high pressure grease, 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 EuropeanStandar
25、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 th
26、is EuropeanStandard 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. EN2030, Steel FE-PM
27、43 Hardened and tempered BarsDk150mm Aerospace series 2) . EN2226, Steel FE-PM43 Hardened and tempered Hand and die forgings D e k 150mm Aerospace series 2) . EN3280, Aerospace series Bearings, airframe rolling, rigid or self-aligning Technical specification. 3 Definition For the purposes of this st
28、andard, 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) SeeISO15. 2) Published as AECMA Standard at the date of publication of this standard. % dmp =single plane mea
29、n bore diameter deviation % Dmp =single plane mean outside diameter deviation % 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 ea =assemble
30、d 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 a max.=permissible static axial load C s =Permissible static radial load.EN3047:1993 4 BSI 01-2000 5 Required characteristics 5.1 Dimensions Toleran
31、ces 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, side faces and cylindrical outer surface: R a=0.84m. 5.3 Materials Inner ring : EN2030 or EN2226,U 58HR
32、C Outer ring : EN2030 or EN2226,U 58HRC Balls : EN2030,U 58HRC 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
33、not extend beyond C . Figure 1 EN3047:1993 BSI 01-2000 5 Table 1 Table 1 Dimensions in millimetres d B C D d1 min. Tolerances 4m r Mass kg/1000 parts . Code Nominal % 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
34、 9 32 17,7 32 17 17 12 10 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 m Runout tolerances max. 4m Starting torque in mN.m a 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 e
35、a P E F amax. C s 05 80 2 to9 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, seeEN3280. b Axial and radial loads
36、may be applied simultaneously. For ultimate static loads, seeEN3280. 0 0,12 0 0,12 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 17EN3047:1993 6 BSI 01-2000 6 Designation EXAMPLE: NOTEIf necessary, the codeI9005 shall be placed between the description block and the identit
37、y block. 7 Marking In addition 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 SeeEN3280.BSEN3047:1994 BSI 01-2000 National annex NA (informat
38、ive) Committees responsible The United Kingdom participation in the preparation of this EuropeanStandard 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
39、Ministry of Defence Society of British Aerospace Companies Ltd. National annex NB (informative) Cross-references The BritishStandards corresponding to the InternationalStandards referred to in the text are as follows. InternationalStandard Corresponding BritishStandard ISO15:1981 BS6267:1982 Specifi
40、cation for rolling bearings: boundary dimensions for radial bearings ISO1132:1980 BS6107 Rolling bearings: tolerances Part 1:1981 Glossary of termsBSEN 3047:1994 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing Bri
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