1、BRITISH STANDARD BS EN 2501:1992 Bearings, spherical plain in corrosion resisting steel with self-lubricating liner and wide inner ring Dimensions and loads The European Standard EN 2501:1987 has the status of a British StandardBSEN 2501:1992 This British Standard, having been prepared under the dir
2、ectionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15 June 1992 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference ACE/14 Draft for comment 87/76993 DC ISBN 0 580 20866 4 Coo
3、perating 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 Normungsinstitut Belgium Institut belge de normalisation Denmark
4、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 Ireland National Standards Authority of Ireland Ita
5、ly 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 Normalizacin y Certificacin Sweden Standardiseringskommissi
6、onen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN 2501:1992 BSI 09-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Brief history 2 Text of E
7、N 2501 3 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN 2501:1992 ii BSI 09-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee
8、and is the English language version of EN2501:1987, Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner and wide inner ring. Dimensions and loads, published by the European Committee for Standardization (CEN). EN 2501 was produced as a result of intern
9、ational discussions in which the United Kingdom 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 immun
10、ity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 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
11、 indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2501 January 1987 UDC: 629.7.02:621:822.3-408.2-72.004.1:669:14.018.89 Descriptors: Aircraft industry, spherical bearing, corrosion resisting steel, linings, self-lubricating parts, dimen
12、sions, loads. English version Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner and wide inner ring Dimensions and loads Srie arospatiale Rotules en acier rsistant la corrosion garniture autolubrifiante et bague intrieurelarge Dimensions et charges L
13、uft- und Raumfahrt Gelenklager aus korrosionsbestndigem Stahl mit selbstschmierender Beschichtung und breitem Innenring Mae und Belastungen This European Standard was accepted by CEN on 1987-11-16. CEN members are bound to comply with the CEN Internal Regulations which stipulate the conditions for g
14、iving 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 ve
15、rsions (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, Belgium
16、, 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 fr Normung Central Secretariat: rue de Stassar
17、t 36, B-1050 Brussels CEN 1987 Copyright reserved to CEN members Ref. No. EN 2501:1987 EEN 2501:1987 BSI 09-1999 2 Brief history This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After enquiries and votes carried out in accordance with the rules
18、 of this Association, this draft 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. According to the Common CEN/CENELEC Rules, following countries are bound to implement this European Stand
19、ard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. Contents Page Brief history 2 1 Scope and field of application 3 2 References 3 3 Symbols 3 4 Required characteristics 3
20、 5 Designation 5 6 Marking 5 7 Technical specification 5 Figure 4 Table 1 4 Table 2 4EN 2501:1987 BSI 09-1999 3 1 Scope and field of application This standard specifies the characteristics of bearings, spherical plain in corrosion resisting steel with self lubricating liner and wide inner ring. They
21、 are intended, principally, for use in rod end fittings. They shall be used in the temperature range 55to+150 C. 2 References EN 2023, Aerospace series Bearings, spherical plain, in corrosion resisting steel with self lubricating liner Normal series Dimensions and loads. EN 2030, Steel FE-PM43 Harde
22、ned and tempered Bars D k 150mm Aerospace series. EN 2064, Bearings, spherical plain in corrosion resisting steel with self lubricating liner Technical specification Aerospace series. EN 2136, Steel FE-PM42 900MPak Rmk 1 100 MPa Bars De k 100mm Aerospace series. EN 2539, Aerospace series Steel FE-PM
23、61-Rm U 960MPa Bars De k 150 mm 1) . 3 Symbols 4 Required characteristics 4.1 Dimensions Tolerances Masses Configuration shall correspond with Figure. Dimensions, tolerances and masses shall correspond with Table 1. 4.2 Loads Starting torques Loads and starting torques shall correspond with Table 2.
24、 4.3 Materials Inner ring: steel EN 2030 Outer ring: steel EN2136 or steel EN2539 Liner: Self-lubricating low friction wear resisting material consistent with requirements of EN2064. 1) In preparation. % ds = the deviation of a single bore diameter % Ds = the deviation of a single outside diameter %
25、 dmp = single plane mean bore diameter deviation % Dmp = single plane mean outside diameter deviation = maximum displacement angle which can be formed by the outer ring with the inner ring the spherical track of the outer ring being fully in contact with the inner ring.EN 2501:1987 4 BSI 09-1999 Tab
26、le 1 Table 2 Figure Dimensions in millimetres d D B C Tolerances m K d 1 a r 1 N P R ! in degrees Mass Code Nominal 0,1 % Dmp % Ds % dmp % ds min. g 06 6 18 14 8 15,0 9,0 0,3 to 0,8 16,2 0,7 0,2 9 15 08 8 21 15 10 17,5 11,0 18,4 0,9 0,3 8 22 10 10 26 20 13 22,2 13,5 23,4 10 48 a Attention should be
27、paid to the possible indentation of the support mountings by the inner bearing faces. d Permissible static loads kN Permissible dynamic radial loads 25000 cycles kN Starting torques N.m nominal radial axial axial after swaging 1) mm C s C a 6,0 41,5 5,1 4,5 16,6 0,12 to 0,80 8,0 63,0 9,5 6,5 25,2 10
28、,0 105,1 18,6 10,5 42,2 1) These values are given for information. The actual values depend on the method of swaging. 0 0,06 +0,1 0 0 0 2 , +0,1 0 0 8 +5 13 0 8 +2 10 0 9 +6 15EN 2501:1987 BSI 09-1999 5 5 Designation Each spherical plain bearing shall only be designated as in the following example:
29、NOTEIf necessary, the originator code S9005 may be introduced between the description block and the identity block. 6 Marking In addition to the manufacturers own marking, each spherical plain bearing shall be marked, using the identity block as defined in clause5 of this standard. Marking position
30、and method are at the manufacturers option. 7 Technical specification Spherical plain bearings supplied to this standard shall conform with the requirements of EN2064. Qualification testing of these bearings is unnecessary providing that: manufacturers have already been qualified to supply bearings
31、in accordance with EN2023; material and methods of manufacture are exactly the same for these bearings as those used for EN2023.6 blankBSEN 2501:1992 BSI 09-1999 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was e
32、ntrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/14, upon which the following bodies were represented: British Independent Steel Producers Association Civil Aviation Authority (Airworthiness Division) Federation of Wire Rope Manufacturers of Great Britain Insti
33、tute of Petroleum Ministry of Defence Society of British Aerospace Companies Ltd. National annex NB (informative) Cross-references The British Standard BS EN2023 corresponding to the European Standard EN2023 referred to in the text is identical in title with that given in clause2. There are no Briti
34、sh Standards corresponding to EN2030, EN2064, EN2136 and EN2539 referred to in the text. British Standards identical in title and number will be published in due course.BS EN 2501:1992 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body respon
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