BS-EN-2020-1989.pdf
《BS-EN-2020-1989.pdf》由会员分享,可在线阅读,更多相关《BS-EN-2020-1989.pdf(12页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD AEROSPACE SERIES BS EN 2020:1989 Specification for Bearings-airframe rolling single row self aligning roller bearings in corrosion resisting steel diameter series 3 and 4 Dimensions and loads This European Standard EN 2020 has the status of a British Standard. UDC 629.7.02:621.822.8
2、.004.1:621.828:669.14.018.89 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:41:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2020:1989 This British Standard, having been prepared under the direction of the Aerospace Standards Policy Committee, was published under the authority of th
3、e Board of BSI and comes into effect on 29 September 1989 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference MCE/7 Draft for comment 76/74662 DC ISBN 0 580 17653 3 Cooperating organizations The European Committee for Standardization, under whose supervi
4、sion this European Standard was prepared, comprises the national standards organizations of the following Western European countries. AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAsso
5、ciation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund Po
6、rtugalInstituto Portugus de Qualidade SpainInstituto Espaol de Normalizacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffie
7、ldun sheffieldun, na, Fri Nov 03 01:41:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2020:1989 BSI 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii Brief history2 Text of EN 20203 National appendix AInside back cover National appendix BInside back cover Li
8、censed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:41:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2020:1989 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 EN
9、2020 “Bearings-airframe rolling single row self aligning roller bearings in corrosion resisting steel diameter series 3 and 4. Dimensions and loads. Aerospace series”, published by the European Committee for Standardization (CEN). EN 2020 was produced as a result of international discussion in which
10、 the UK 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 p
11、ages This document comprises a front cover, an inside front cover, pages i and ii, the EN 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 th
12、e inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:41:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2020 June 1984 UDC 629.7.02:621.822.8.004.1:621.828:669.14.018.89 Key words: Aircraft industry, airframe bearings, sel
13、f aligning bearings, roller bearings, corrosion resisting steel, dimensions, static loads English version Bearings-airframe rolling single row self aligning roller bearings in corrosion resisting steel diameter series 3 and 4 Dimensions and loads Aerospace series Roulements pour structures daronefs
14、roulements en acier rsistant la corrosion rotule sur une range de rouleaux sries de diamtres 3 et 4 Dimensions et charges Srie arospatiale Luft- und Raumfahrt Flugwerklager einreihige Tonnenlager aus Korrosionsbestndigem Stahl Durchmesserreihen 3 und 4 Masze und Belastungen This European Standard wa
15、s accepted by CEN on 1984-06-21. 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 references concerning suc
16、h 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 member into its own langu
17、age 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, Switzerland and United Kingdom.
18、 CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN 1984 Copyright reserved to all CEN members Ref. No. EN 2020:1984 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:41:43 GM
19、T+00:00 2006, Uncontrolled Copy, (c) BSI EN 2020:1984 BSI 12-1999 2 Brief history This European Standard has been prepared by the European Association of Aerospace Constructors (AECMA). This Standard has been accepted by the European Committee for Standardization (CEN) after inquiries and votes carr
20、ied out in accordance with the rules of this Committee. Contents Page Brief history2 1Scope3 2Fields of application3 3References3 4Definitions3 5Symbols3 6Materials3 7Required characteristics4 8Designation5 9Marking5 10Technical specification6 Figure4 Table5 Licensed Copy: sheffieldun sheffieldun, n
21、a, Fri Nov 03 01:41:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2020:1984 BSI 12-19993 1 Scope This standard specifies the characteristics, of rigid single row ball bearings of diameter series 3 and 41) designed to withstand only slow rotations and oscillations under load. They are intended for
22、 use between fixed and moving parts of the aircraft structure and their control mechanisms. 2 Fields of application The airframe roller bearings defined in the present standard shall be used from 54 to + 150 C. However, being lubricated with the following greases: very high pressure grease, ester ty
23、pe (code A), operational range 73 to + 121 C or very high pressure grease, synthetic hydrocarbons, general purpose (code B), operational range 54 to + 177 C (refer to EN 2063), their field of application when lubricated with code A grease shall be limited to + 121 C. 3 References ISO 15:1981, Rollin
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BS EN 2020 1989
链接地址:https://www.31doc.com/p-3741129.html