1、BRITISH STANDARD AEROSPACE SERIES BS EN 2023:1989 Specification for Bearings-spherical plain in corrosion resisting steel with self-lubricating liner Normal series Dimensions and loads This European Standard EN 2023 has the status of a British Standard. UDC 629.7.02:621.822.3-408.2-72.004.1:669.14.0
2、18.89BSEN2023:1989 This British Standard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Board ofBSIand comes into effect on 29September1989 BSI 12-1999 The following BSI references relate to the work on this standard: Comm
3、ittee reference ACE/14 Draft for comment 87/76993 DC ISBN 0 580 17620 7 Cooperating organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizations of the following Western European countries. Austr
4、ia 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 Ireland
5、National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus de Qualidade Spain Instituto Espaol de Normalizacin Sweden Standardiseringskommissionen i Sverige Swit
6、zerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date of issue CommentsBSEN2023:1989 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Brief history 2 Text of EN 2023 3 Na
7、tional appendix A Inside back cover National appendix B Inside back coverBSEN2023:1989 ii BSI 12-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN2023 “Aerospace series. Bearings, s
8、pherical plain in corrosion resisting steel with self-lubricating liner. Normal series. Dimensions and loads”, published by the European Committee for Standardization (CEN). EN2023 was produced as a result of international discussion in which the UK took an active part. A British Standard does not p
9、urport 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 inside fron
10、t 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 indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EURO
11、PISCHE NORM EN 2023 January 1988 UDC: 629.7.02:621.822.3-408.2-72.004.1:669.14.018.89 Key words: Aircraft industry, spherical bearing, corrosion resisting steel, linings, self-lubricating parts, dimensions, loads. English version Aerospace series Bearings,sphericalplainincorrosionresisting steel wit
12、hself-lubricating liner Normalseries Dimensionsandloads Srie arospatiale Rotulesenacierrsistantla corrosion garniture autolubrifiante Srienormale Dimensions et charges Luft- und Raumfahrt Gelenklagerauskorrosionsbestndigem Stahl mit selbstschmierender Beschichtung NormaleReihe Mae und Belastungen Th
13、is European Standard was accepted by CEN on 1987-11-16. CEN members are bound to comply with the requirements of CEN 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 bibliographical re
14、ferences concerning such national standards may be obtained on application to the CEN 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 me
15、mber into its own language and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, Switzerl
16、and and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN 1987 Copyright reserved to all CEN members Ref. No. EN 2023:1987 EEN2023:1988 BSI 12-1999 2 Brief history This
17、 European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After enquiries and votes carried out in accordance with the rules of this Association, this draft has successively received the approval of the National Associations and the Official Services of the
18、 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 Standard: Belgium, France, Germany, Italy, Netherlands, Spain, United Kingdom. Contents Page Brief history 2 1 Scope and field of applicat
19、ion 3 2 References 3 3 Symbols 3 4 Required characteristics 3 5 Designation 5 6 Marking 6 7 Technical specification 6 Figure 1 without swaging groove Code S 4 Figure 2 With swaging grooves Code R 4 Table 1 4 Table 2 5EN2023:1988 BSI 12-1999 3 1 Scope and field of application This standard specifies
20、the characteristics of spherical plain bearings in corrosion resisting steel with self lubricating liner, normal series. They are intended for use in fixed or moving parts of the aircraft structure and control mechanisms. They shall be used in the temperature range 55to+150 C. 2 References EN 2030,
21、Steel FE-PM43 Hardened and tempered Bars D k 150 mm Aerospace series. EN 2064, Bearings, spherical plain in corrosion resisting steel with self lubricating liner Technical specification Aerospace series. EN 2136, Steel FE-PM42 900 MPa k Rm k 1100 MPa Bars De k 100 mm Aerospace series. EN 2539, Aeros
22、pace series Steel FE-PM61-Rm U 960 MPa Bars De k 150 mm 1) . 3 Symbols 4 Required characteristics 4.1 Dimensions Tolerances Masses Configuration shall correspond withFigure 1 orFigure 2. Dimensions, tolerances and masses shall correspond withTable 1. 4.2 Loads Starting torques Loads and starting tor
23、ques shall correspond withTable 2. 4.3 Materials Inner ring: steel EN 2030 Outer ring: steel EN 2136 or EN 2539 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
24、of a single outside diameter % 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.
25、EN2023:1988 4 BSI 12-1999 Table 1 Figure 1 without swaging groove Code S Figure 2 With swaging grooves Code R Dimensionsinmillimetres Sries d D C B Tolerances m d 1 a K r r 1 N P R Mass Code Nominal 0,1 0 0,06 % Dmp % Ds % dmp % ds min. . + 0,1 0 0 0,2 + 0,1 0 in degrees . g Normal narrow series 05
26、5 14 5,5 7,0 0 8 +5 13 0 8 +2 10 8,6 11,1 0,5 +0,1 0,2 12,2 0,7 0,2 9 7 06 6 16 6,5 9,0 9,0 12,7 14,2 14 9 10 10 21 8,0 10,5 0 9 +6 15 +3 11 11,9 15,9 0,8 0 0,3 0,1 to 0,4 18,4 0,9 0,3 11 20 12 12 25 10,0 13,0 15,0 19,8 22,4 10 32 22 22 40 18,0 22,0 0 11 +8 19 0 10 +3 13 27,1 34,9 1,0 0 0,4 36,8 1,4
27、 8 126 25 25 45 20,0 25,0 29,6 38,8 41,8 185 30 30 51 24,0 28,0 0 13 +10 23 35,5 45,2 47,8 6 300 Normal wide series 06 6 16 8,5 11,0 0 8 +5 13 0 8 +2 10 7,7 13,5 0,8 0 0,3 14,2 0,7 0,2 15 16 08 8 18 8,0 10,3 15,0 16,2 14 17 10 10 21 10,0 12,5 0 9 +6 15 12,2 17,5 18,4 0,9 0,3 10 27 12 12 26 13,0 16,0
28、 +3 11 15,5 22,2 23,4 49 15 15 29 13,5 17,0 18,9 25,4 26,4 9 62 17 17 30 14,5 18,0 20,1 27,0 0,1 to 0,4 27,4 69 20 20 35 16,0 20,0 0 11 +8 19 0 10 +3 13 23,5 30,9 31,8 1,4 8 104 25 25 54 26,0 32,0 0 13 +10 23 35,3 47,6 1,0 0 0,4 50,8 9 445 30 30 60 28,0 34,0 40,9 53,2 1,2 0 0,4 56,8 8 480 35 35 65 2
29、9,0 36,0 0 12 +3 15 45,5 58,0 61,8 565 40 40 68 31,0 38,0 47,0 60,4 64,8 600 45 45 76 33,0 41,0 54,1 67,9 72,8 800 50 50 82 35,0 44,0 0 15 +13 28 60,3 74,6 78,8 970 a Attention should be paid to the possible indentation of the support mountings by the inner ring bearing faces.EN2023:1988 BSI 12-1999
30、 5 Table 2 5 Designation Each spherical plain bearing shall only be designated as in the following example: Where the following codes for type are applied: R = with swaging grooves S = without swaging groove E = narrow normal series L = wide normal series Series d Nominal mm Permissible static loads
31、 kN Permissible dynamic radial loads 25000cycles Starting torques Radial Axial axial for spherical bearings with swaging grooves after swaging a C s C a kN N.m Normal narrow series 5 18,6 1,5 1,5 7,4 0,08 to 0,50 6 26,7 2,7 2,7 10,7 10 43,7 5,1 5,1 17,4 0,12 to 0,80 12 68,2 9,5 9,5 27,3 22 240,2 40,
32、5 21,0 96,1 0,25 to 1,00 25 307,0 51,7 24,0 122,8 30 389,0 78,0 29,0 155,6 0,40 to 2,00 Normal wide series 6 40,0 6,1 3,0 16,0 0,08 to 0,50 8 41,5 5,1 4,5 16,6 0,12 to 0,80 10 63,0 9,5 6,5 25,2 12 105,1 18,6 10,5 42,0 15 125,6 20,4 12,5 50,2 17 144,9 24,3 13,2 58,0 20 191,1 30,7 17,0 76,4 25 491,4 9
33、3,2 31,5 196,5 0,25 to 1,00 30 548,6 109,7 36,0 219,5 0,40 to 2,00 35 623,6 118,5 39,5 249,5 40 701,3 137,0 42,0 280,5 0,60 to 3,50 45 846,2 157,0 48,0 338,5 50 994,5 178,2 52,5 397,8 a These values are given for information. The actual values depend on the method of swaging.EN2023:1988 6 BSI 12-199
34、9 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 positio
35、n and method are at the manufacturers option. 7 Technical specification Bearings, spherical plain supplied to this standard shall conform with the requirements of EN2064.BSEN2023:1989 BSI 12-1999 National appendix A The United Kingdom participation in the preparation of this European Standard was en
36、trusted 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 Ministr
37、y of Defence Society of British Aerospace Companies Limited Stainless Steel Wire Export Group National appendix B The British Standards corresponding to the European Standards referred to in the text are identical in number and title with those given in clause2.BS EN 2023:1989 BSI 389 Chiswick High
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