BS EN 2063-1992 Airframe rolling bearings - Technical specification《飞行器机体滚动轴承 技术规范》.pdf

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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2063:1992 Airframe rolling bearings Technicalspecification The European Standard EN 2063:1992 has the status of a British StandardBSEN2063:1992 This British Standard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspubli

2、shed under the authorityof the Standards Boardand comes into effect on 15 August 1992 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference MCE/7 Draft for comment 91/71269 DC ISBN 0 580 21043 X Cooperating organizations The European Committee for Standard

3、ization (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 Dansk Standardiseringsraad Finland Suomen Standardisoimisl

4、iito, 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 Italy Ente Nazionale Italiano di Unificazione Luxembourg Insp

5、ection 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 Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisa

6、tion United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN2063:1992 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 2063 3 National annex NA (informative) Committees responsible

7、Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN2063:1992 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 EN2063:1992 Aerospace seri

8、es Airframe rolling bearings Technical specification, published by the European Committee for Standardization (CEN). EN 2063 was produced as a result of international discussions in which the United Kingdom took an active part. A British Standard does not purport to include all the necessary provisi

9、ons 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 andii, theEN title page, pa

10、ges2to14, 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 EN 2063 May 1992 UDC 629.7.02:621.8

11、22.74 + 84:658.56 Descriptors: Aircraft industry, airframe bearings, specifications, characteristics, inspection, tests English version Aerospace series Airframe rolling bearings Technicalspecification Srie arospatiale Roulements pour structures daronefs Spcification technique Luft- und Raumfahrt Fl

12、ugwerklager Technische Spezifikation This European Standard was approved by CEN on 1992-05-11. 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-da

13、te 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 versions (English, French, German). A version in any other language made by translation under the

14、 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,

15、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 Stassart 36, B-1050 Brussels 1992 Copyright reserved to CEN members Ref. No. EN 2063:1992 EEN2063:1992

16、 BSI 12-1999 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 Association, this standard has successively received the approval of the National Associations a

17、nd the Official Services of the member countries of AECMA, prior to its presentation to CEN. According to the Common CEN/CENELEC Rules, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembo

18、urg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Field of application 3 3 Normatives references 3 4 Definitions and symbols 3 5 Materials and protection 5 6 Required characteristics 5 7 Inspections and tests 6 8 Qualification con

19、ditions 11 9 Acceptance conditions 12 10 Marking, packing and certificate of conformity 12 Annex A (normative) Table of tests and inspections to be carried out for qualification of a bearing 14 Figure 1 8 Figure 2 9 Figure 3 10 Figure 4 10 Figure 5 11 Figure 6 11 Table 1 Basic static load rating 4 T

20、able 2 Load factors 5 Table 3 10EN2063:1992 BSI 12-1999 3 1 Scope This standard specifies bearings designed to be subjected under load to slow rotations or oscillations only. 2 Field of application These bearings are intended for use in fixed and moving components of the aircraft structure such as c

21、ontrol surfaces, flaps, doors, etc., and their control mechanisms. They are designed for use under temperature conditions specified in the dimensional standards listed below in clause3. The requirements of this standard may also be applied to other bearings, not listed in clause3, provided that they

22、 are conditions of procurement of such bearings. 3 Normative references EN 2009, Bearings, airframe rolling Rigid single row ball bearings, in steel Diameter series8and9 Dimensions and loads Aerospace series. EN 2010, Bearings, airframe rolling Rigid single row ball bearings, in steel cadmium plated

23、 Diameter series8and9 Dimensions and loads Aerospace series 1) . EN 2011, Bearings, airframe rolling Rigid single row ball bearings, in corrosion resisting steel Diameter series8and9 Dimensions and loads Aerospace series. EN 2012, Bearings, airframe rolling Rigid single row ball bearings, in steel D

24、iameter series0and2 Dimensions and loads Aerospace series. EN 2013, Bearings, airframe rolling Rigid single row ball bearings, in steel cadmium plated Diameter series0and2 Dimensions and loads Aerospace series 1) . EN 2014, Bearings, airframe rolling Rigid single row ball bearings, in corrosion resi

25、sting steel Diameter series0and2 Dimensions and loads Aerospace series. EN 2015, Bearings, airframe rolling Double row self aligning ball bearings, in steel Diameter series2 Dimensions and loads Aerospace series. EN 2016, Bearings, airframe rolling Double row self aligning ball bearings, in steel ca

26、dmium plated Diameter series2 Dimensions and loads Aerospace series 1) . EN 2017, Bearings, airframe rolling Double row self aligning ball bearings, in corrosion resisting steel Diameter series2 Dimensions and loads Aerospace series. EN 2018, Bearings, airframe rolling Single row self aligning ball

27、bearings, in steel Diameter series3and4 Dimensions and loads Aerospace series. EN 2019, Bearings, airframe rolling Single rowself aligning ball bearings, in steel cadmium plated Diameter series3and4 Dimensions and loads Aerospace series 1) . EN 2020, Bearings, airframe rolling Single row self aligni

28、ng roller bearings, in corrosion resisting steel Diameter series3and4 Dimensions and loads Aerospace series. EN 2030, Steel FE-PM43 Hardened and tempered Bars D u 150mm Aerospace series 1) . EN 2031, Steel FE PL31 Hardened and tempered Bars Aerospace series 1) . 4 Definitions and symbols 4.1 Definit

29、ions The airframe bearings are practically filled with balls or rollers. They generally have a projecting inner ring and are all constructed with shields or seals and are charged with grease specified in the dimensional standards. A bearing with shields is a bearing in which the rolling elements and

30、 raceways are protected by shields secured to one of the rings and separated from the other by a small space. A bearing with seals is a bearing in which the rolling elements and raceways are completely enclosed by flexible seals secured to one of the rings and rubbing on the other. 1) Published as A

31、ECMA standard at the date of publication of this standard.EN2063:1992 4 BSI 12-1999 4.2 Symbols 4.3 Basic static load rating C o The basic static load rating is defined as the static radial load which causes a total permanent deformation of0,0001of the rolling element diameter at the point of contac

32、t of the most highly loaded rolling element and raceway. Table 1 Basic static load rating 4.4 Permissible static loads The permissible static radial load C sis given by: C s= C o R The permissible static axial load F amax. is given by: F amax. = C o A F amax. = The values normally used for factors R

33、 and A are given inTable 2. The value of coefficient Y sis specified in each dimensional standard. C o = basic static load rating F r = static radial load C s = permissible static radial load F a = static axial load F amax. = permissible static axial load (maximum load) P a = equivalent static load

34、= nominal contact angle formed by the line of action of the load on the ball and a plane perpendicular to the rolling axis R = radial load factor A = axial load factor Y s = coefficient of axial load Bore d (mm) C okN Standard number EN 2009 EN 2010 EN 2011 EN 2012 EN 2013 EN 2014 EN 2015 EN 2016 EN

35、 2017 EN 2018 EN 2019 EN 2020 05 06 08 10 12 15 17 20 25 30 35 40 50 60 1,900 2,200 2,890 3,140 3,100 3,840 4,375 5,080 5,680 7,690 12,500 1,220 1,720 2,110 3,040 3,480 4,160 4,800 7,350 8,330 11,170 0,470 0,710 1,140 1,760 2,010 2,350 3,040 4,070 7,350 10,780 12,050 13,920 18,910 22,640 32,340 43,1

36、20 R A - C s Y s -EN2063:1992 BSI 12-1999 5 4.5 Combined radial and axial loads For rigid bearings defined by standards EN2009toEN2014, the permissible radial and axial loads may be applied simultaneously. For the self aligning bearings defined by standards EN2015toEN2020, in the case of simultaneou

37、s radial and axial loads, these loads shall comply with the following formula: P s= F r+ Y s F a This formula shall meet the following requirement: P su C s For a more accurate evaluation of the loads, as far as double row self aligning ball bearings are concerned, as specified by standards EN2015,

38、EN2016, EN2017, the following formula applies: P s= F r+ 0,44 cot. F a Table 2 Load factors 5 Materials and protection 5.1 Materials The prescribed materials are specified in the dimensional standards. 5.2 Protection The bearings defined by standards EN2010, EN2013, EN2016, EN2019 are protected by p

39、assivated cadmium plating of all external surfaces of the rings, with the exception of the bore and raceways. The cadmium plating thickness shall be5m to12m. 6 Required characteristics 6.1 Hardness The rings and rolling elements shall be of the following hardness: for bearing steel defined by standa

40、rd EN2031, the Rockwell hardness shall be60to66HRC; for corrosion resisting bearing steel defined by standard EN2030, the Rockwell hardness shall beW 58HRC. 6.2 Surface roughness The arithmetic mean deviation of surface roughness shall be: R a :0,2m for the raceway and rolling elements; R a :0,8m fo

41、r the bore, side faces and cylindrical outer surface. 6.3 Lubrication The bearings shall be charged to at least80% of the voids with a grease, specified in the dimensional standards, which shall retain its characteristics within the prescribed temperature range. 6.4 Sealing The seals shall be design

42、ed so as not to affect functioning of the bearing within the prescribed temperature range. They shall retain the lubricant in the bearing and prevent ingress of foreign bodies. Standard number Radial load factor R Axial load factor A EN 2009 EN 2010 EN 2011 EN 2012 EN 2013 EN 2014 5,6 2,5 EN 2015 EN

43、 2016 EN 2017 8 2,5 a EN 2018 EN 2019 EN 2020 5 2,5 b a Safe values based on a small contact angle. If a more accurate evaluation of the permissible axial load is required, it can be obtained by application of the formula for combined loads where F r(radial load) = 0. b If movement occurs, permissib

44、le load F amay be less than1,5C o , but no general rule can be given for this limitation.EN2063:1992 6 BSI 12-1999 6.5 Geometrical characteristics 6.5.1 Dimensions Tolerances Mass These shall conform to the values specified in the dimensional standards. 6.5.2 Form tolerances On the inner ring: racew

45、ay radial runout shall beu 25m; raceway runout with reference side shall be u 40m. On the outer ring: raceway radial runout shall be u 40m; raceway runout with reference side shall be u 40m (the runout is not applicable to self aligning bearings). 6.5.3 Internal radial clearances The internal radial

46、 clearances shall conform to the values specified in the dimensional standards. 6.6 Mechanical characteristics 6.6.1 Running behaviour The bearings shall be suitable for normal functioning in the prescribed temperature range. They shall be easily turned by hand, not exhibit frequent and regular hard

47、 spots such as those which may be due to the balls fouling the filling slots. 6.6.2 Permissible static loads The bearings shall withstand the permissible static loads given in the dimensional standards for one continuous minute without causing unacceptable permanent deformations on the raceways, aff

48、ecting the behaviour in running and oscillation when the load is removed. 6.6.3 Rupture static loads The rupture static loads are maximum static radial or axial loads which the bearings shall withstand for one continuous minute without jamming, cracks or fractures being observed when the load is rem

49、oved. The rupture static load shall not be less than1,5times the value of the permissible static load. 7 Inspections and tests 7.1 Visual inspection The bearings shall be subjected to a visual inspection to check the external condition and to ascertain: compliance of marking with the provisions of subclause10.1; correct attachment of the seals