1、BRITISH STANDARD AEROSPACE SERIES BS EN 3055:1994 Bearings, airframe rolling Single row self-aligning roller bearings in corrosion resisting steel Dimensions and loads The European Standard EN3055:1994 has the status of a BritishStandard UDC 629.7.02:621.882.8.004.1:621.828.669.14.018.89BSEN3055:199
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 15July1994 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference MCE/
3、7 Draft for comment88/72195DC ISBN 0 580 22201 2 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 Normungsinsti
4、tut 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 Iceland
5、 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 Normali
6、zacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation UnitedKingdom BritishStandards Institution Amendments issued since publication Amd. No. Date CommentsBSEN3055:1994 BSI 01-2000 i Contents Page Cooperating organizations Inside front cov
7、er 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-referen
8、ces Inside back cover Figure 1 4 Table 1 5BSEN3055:1994 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 EN3055:1994 Aerospace series Bearings, airframe rolling Single row se
9、lf-aligning roller bearings in corrosion resisting steel Dimensions and loads, published by the European Committee for Standardization (CEN). EN3055 was produced as a result of international discussions in which the UnitedKingdom took an active part. A British Standard does not purport to include al
10、l 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, pagesi andi
11、i, theEN title page, pages2 to 6, 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 EN3055 Apri
12、l1994 UDC 629.7.02:621.822.8.004.1:621.828.669.14.018.89 Descriptors: Aircraft industry, airframe bearings, self-aligning bearings, roller bearings, corrosion resisting steel, dimensions, static loads English version Aerospace series Bearings, airframe rolling Single row self-aligning roller bearing
13、s in corrosion resisting steel Dimensions and loads Srie arospatiale Roulements pour structures daronefs Roulements en acier rsistant la corrosion, rotule, sur une range de rouleaux Dimensions et charges Luft- und Raumfahrt Flugwerklager Einreihige Tonnenlager aus korrosionsbestndigem Stahl Mae und
14、Belastungen This European Standard was approved by CEN on1994-04-27. 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 bibliographic
15、al 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 language made by translation under the responsibility of a CEN m
16、ember 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, S
17、weden, 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. EN3055:1994 EEN3055:1994 BSI 01-2000 2 Foreword This
18、 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 approval of the National Associations and the Official Services of
19、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 of a national standard, either by publication of an identical text or by endorsement, at the latest by October19
20、94, and conflicting national standards shall be withdrawn at the latest by October1994. 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, Luxe
21、mbourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, UnitedKingdom.EN3055:1994 BSI 01-2000 3 1 Scope This standard specifies the characteristics of single row self-aligning roller bearings in corrosion resisting steel designed to withstand only slow rotations, oscillations and/or swive
22、lling under load. They are intended for use in bell crank lever ends or at the end of rigid flight control rods for transmission purposes, before or after servo operation. The airframe rolling bearings defined in this standard are used from54 C to+150 C. However, being lubricated with the following
23、greases: very high pressure grease, ester type (code A), operational range73 C to+121 C or very high pressure grease, synthetic hydrocarbons, general purpose (code B), operational range 54 C to+177 C (see EN3280), their field of application when lubricated with code A grease is limited to+121 C. 2 N
24、ormative references This European Standard 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
25、 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 of the publication referred to applies. ISO1132, Rolling bearings Tolerances Definitions. EN2030, Steel FE-PM43 Hardened and tempered Bars Dk
26、 150mm Aerospace series 1) . EN2226, Steel FE-PM43 Hardened and tempered Hand and die forgings D e k 150mm Aerospace series 1) . EN3280, Aerospace series Bearings, airframe rolling, rigid or self-aligning Technical specification. 3 Definition For the purposes of this standard, the following definiti
27、on applies: shielded bearing full complement of rollers (without cage) EN3280 4 Symbols The definitions of tolerances and clearances are given in ISO1132. 1) Published as AECMA Standard at the date of publication of this standard. % dmp = single plane mean bore diameter deviation % Dmp = single plan
28、e 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 K ia = radial runout of assembled bearing inner ring K ea = radial runout of assembled bearing outer ring F amax.
29、= permissible static axial load C s = permissible static radial load 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 loadEN3055:1994 4 BSI 01-2000 5 Required characteristics 5.1 Dimens
30、ions Tolerances Clearances Loads Mass Configuration: seeFigure 1; the bearings are fitted with shields (code P). 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
31、,U 58 HRC Outer ring : EN2030 or EN2226,U 58 HRC Rollers : EN2030,U 58 HRC Shields : Corrosion resisting material. NOTEThe installation of shields is at the manufacturers option. Figure 1 EN3055:1994 BSI 01-2000 5 Table 1 Dimensions in millimetres d B C D d1 min. F max. b G max. b Tolerances 4m r Ma
32、ss Kg/1000 parts Code Nominal % dmp % Dmp % ds % Ds 06 6 12 8 24 11,9 10 20,5 0,3 to 0,8 21 08 8 15 10 26 12,3 13 22 37 08 a 8 30 14,3 12 25 49 10 10 16 12 35 16,9 13 29 70 10 a 10 20 17 72 12 12 13 40 19,9 33,5 108 15 15 24 14 47 23,9 20 40 153 17 17 15 25,9 41 163 d Code Internal clearances 4m Rad
33、ial runout tolerances max.4m Starting torque cin mN.m Permissible static loads 4)kN Axial max. G a Radial G r K ia K ea Axial F amax. Radial C s 06 180 2 to6 25 40 6 4,8 15,9 08 210 2 to7 8 6,9 22,8 08 a 12 8,4 27,8 10 16 10 32,9 10 a 12 20 13,6 45 15 3 to9 25 16,4 54,2 17 30 21 69,4 a In the design
34、ation add code1 to the end of the identity block. b Dimensions of the shields are at the manufacturers option within the limits of F and G. c Definition,seeEN3280. 4) F r +3,3F a = P or ; P orshall bek C s . For ultimate static loads, seeEN3280. 0 0,12 0 0,12 0 8 0 9 + 2 10 + 2 11 0 11 + 3 14 + 3 11
35、EN3055:1994 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, see6. Marking
36、position and method are at the manufacturers option. 8 Technical specification See EN3280.BSEN3055:1994 BSI 01-2000 National annex NA (informative) Committees responsible The UnitedKingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Comm
37、ittee (ACE/-) to Technical Committee MCE/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 In
38、ternational Standards referred to in the text are as follows. International Standard Corresponding BritishStandard ISO76:1987 BS5645:1987 Specification for static load ratings for rolling bearings ISO1132:1980 BS6107 Rolling bearings: tolerances Part1:1981 Glossary of termsBS EN 3055:1994 BSI 389 Ch
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