1、BRITISH STANDARD AEROSPACE SERIES BS EN 3046:1994 Bearings, airframe rolling Rigidsinglerow ball bearings in steel, cadmium plated Diameter series0 and2 Reducedclearance category Dimensionsand loads The European Standard EN3046:1993 has the status of a BritishStandard UDC 629.7.02:621.822.74.004.1:6
2、69.14.669.738BSEN3046:1994 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 stand
3、ard: Committee referenceMCE/7 Draft for comment88/72195DC ISBN 0 580 22407 4 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 Oes
4、terreichisches 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 Techno
5、logical 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 Spain
6、Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN3046:1994 BSI 01-2000 i Contents Page Cooperating
7、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 annex
8、NB (informative) Cross-references Inside back cover Figure 1 5 Table 1 5BSEN3046:1994 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 EN3046:1993 Aerospace series Bearings,
9、airframe rolling Rigid single row ball bearings in steel, cadmium plated Diameter series0 and2 Reduced clearance category Dimensions and loads, published by the European Committee for Standardization (CEN). EN3046 was produced as a result of international discussions in which the United Kingdom took
10、 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 This do
11、cument 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 front co
12、ver.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN3046 November1993 UDC 629.7.02:621.822.74.004.1:669.14.669.738 Descriptors: Aircraft industry, airframe bearings, ball bearings, steel, cadmium, dimensions, static loads English version Aerospace series Bearings, airframe rolling Rigidsingle ro
13、w ball bearings in steel, cadmium plated Diameter series0 and2 Reduced clearance category Dimensions and loads Srie arospatiale Roulements pour structures daronefs Roulements en acier, cadmis, rigides, une range de billes Sries de diamtres0 et2 Catgorie jeux rduits Dimensions et charges Luft- und Ra
14、umfahrt Flugwerklager Einreihige Rillenkugellager aus Stahl, verkadmet Durchmesserreihen0 und2 Reduzierte Lagerluft Mae und Belastungen This European Standard was approved by CEN on1993-11-15. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions fo
15、r 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 Central Secretariat or to any CEN member. This European Standard exists in three official
16、 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 national standards bodies of Austria, Belg
17、ium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland andUnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassa
18、rt 36, B-1050 Brussels CEN1993 Copyright reserved to CEN members Ref. No. EN3046:1993EEN3046:1993 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
19、 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 positive. This European Standard shall be give
20、n 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, the following countries are bound to impleme
21、nt this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, UnitedKingdom.EN3046:1993 BSI 01-2000 3 1 Scope This standard specifies the characteristics of rigid single row ball
22、 bearings in steel 1) , cadmium plated, of diameter series0 and2 2)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 particular the mounting of more than one beari
23、ng 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, ester type (code A), operational range73
24、 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 Standard incorporates by dated or undated r
25、eference, 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 this European Standard only when incor
26、porated 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-PL31 Hardened and tempered Bars Aeros
27、pace 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) . EN2222, Steel FE-PL31 Hardened and te
28、mpered 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. EN3280, Aerospace series Bearings, airframe rolling, rigid or self
29、-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 clearances are given in ISO1132. 1) For new design, use preferably bea
30、rings 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 deviation % ds = deviation of a single bore diameter % Ds = deviation
31、 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 = assembled bearing outer ring face runout with racewayEN3046:1993 4 BSI 01-2000 5 Required characteristics 5.1 Dimensions Tolerances Clearan
32、ces Loads Mass Configuration: see Figure 1; the bearings are fitted with either seals or shields. Values: see Table 1; the dimensions and tolerances apply after protection. 5.2 Surface roughness Raceways and rolling elements: R a =0,24m Bore, side faces and cylindrical outer surface: R a =0.84m The
33、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 after plating, and within16 hours de-embrittlement heat treatment shall be carried out at a temperat
34、ure and for a time (compatible with the performance requirements of the bearing) which shall be subject to written approval of the qualifying authorities. K ia = radial runout of assembled bearing inner ring K ea = radial runout of assembled bearing outer ring F a max. = permissible static axial loa
35、d C s = permissible static radial load. Inner ring : EN2031 or EN2221 or EN2222,59HRC to64HRC Outer ring : EN2031 or EN2221 or EN2222,59HRC to64HRC Balls : EN2031,59HRC to64HRC Shields : Corrosion resisting material Seals : Polytetrafluoroethylene (PTFE) or polytetrafluoroethylene (PTFE) reinforced
36、with fibreglass.EN3046:1993 BSI 01-2000 5 Table 1 NOTE 1The installation of seals and shields is at the manufacturers option. NOTE 2The seal shall not extend beyond C. Figure 1 Dimensions in millimetres d B C D d1 min. Tolerances 4m r Mass kg/1000 parts . Code Nominal % % dmp % % Dmp % % ds % % Ds 0
37、5 5 7 5 16 7,6 0,3 to 0,8 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 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 to 1 123 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
38、+4 17EN3046:1993 6 BSI 01-2000Table 1 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, se
39、e6. Marking position and method are at the manufacturers option. 8 Technical specification See EN3280. d Code Internal clearances 4m 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 ea P E
40、 F a max. 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, see EN3280. b Axial and radial loads may
41、 be applied simultaneously. For ultimate static loads, see EN3280.BSEN3046:1994 BSI 01-2000 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Techni
42、cal 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 corresponding to the International Standards re
43、ferred to in the text are as follows. International Standard Corresponding British Standard ISO15:1981 BS6267:1982 Specification for rolling bearings: boundary dimensions for radial bearings ISO1132:1980 BS6107 Rolling bearings: tolerances Part1:1981 Glossary of termsBS EN 3046:1994 BSI 389 Chiswick
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