1、. CEN EN*328b 94 3404589 0073238 153 = BRITISH STANDARD AEROSPACE SERIES Bearings, airframe rolling -. Rigid single row ball bearings in corrosion resisting steel - Diameter series O and 2 - Normal clearance category - Dimensions and loads The European Standard EN 3286 : 1994 has the status of a Bri
2、tish Standard UDC 621.822.74.004.1 : 669.14.018.89 BS EN 3286 : 1994 CEN EN*3286 94 = 3404589 0073239 09T BS EN 3286 : 1994 Board and comes into effect on 15 September 1994 Amd. No. Date O BSI 1994 The following BSI references relate to the work on this standard: Committee reference MCE/7 Draft for
3、comment 88/72196 DC ISBN O 580 21888 O Cooperating organizations lkxt affected The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Belgium Denmark Finland Fra
4、nce Germany Greece Iceland Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichisches Normungsinstitut Institut belge de normalisation Dansk Standard Suomen Standardisoimisliito, r.y. Association franqaise de normalisation Deutsches Institut fr Nor
5、mung e.V. Hellenic Organization for Standardization Technological Institute of Iceland National Standards Authority of Ireland Ente Nazionale Italiano di Unificazione Inspection du Travail et des Mines Nederlands Normalisatie-instituut Norges Standardiseringsforbund Instituto Portugus da Qualidade A
6、sociacin Espaola de Normalizacin y Certificacin Standardiseringskommissionen i Sverige Association suisse de normalisation British Standards Institution CEN EN*32Bb 94 3404589 0071240 BOL = BS EN 3286 : 1994 Contents Cooperating organizations National foreword Inside front page i Foreword 2 Specific
7、ation 1 Scope 2 Normative references 3 Definition 4 Symbols 5 Required characteristics 6 Designation 7 Marking 8 Technical specification National annexes NA (informative) Committees responsible NB (informative) Cross-references Inside back page Inside back page National foreword This British Standar
8、d has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN 3286 : 1994 Aerospace series - Bearings, ai-ame rolling - Rigid single row ball bearings in corrosion resisting steel - Diameter series O and 2 - Noml clearance category - Di
9、mensions and loads, published by the European Committee for Standardization (CEN). EN 3286 was produced as a result of international discussions in which the United Kingdom took an active part. Compliance with a British Standard does not of itself confer immunity from legal obligations. i CEN EN*328
10、b 74 M 3404587 0071241 748 M EUROPEAN STANDARD EUROPISCHE NORM NORME EUROPENNE EN 3286 June 1994 UDC 621.822.74.004.1 : 669.14.018.89 Descriptors: Aircraft industry, airframe bearings, ball bearings, corrosion resisting steel, dimensions, static loads English version Aerospace series - Bearings, air
11、frame rolling - Rigid single row ball bearings in corrosion resisting steel - Diameter series O and 2 - Normal clearance category - Dimensions and loads Srie arospatiale - Roulements pour structures daronefs - Roulements en acier rsistant la corrosion rigides, une range de billes - Sries de diamtres
12、 O et 2 - Catgorie jeux normaux - Dimensions et charges Luft- und Raumfahrt - Flugwerklager - Einreihige Rillenkugellager aus korrosionsbestndigem Stahl - Durchmesserreihen O und 2 - Normale Lagerluft - MaBe und Belastungen This European Standard was approved by CEN on 1994-06-07. CEN members are bo
13、und to comply with the CENKENELEC 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 such national standards may be obtained on application to the C
14、entral 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 language and notified to the Central Secretariat has the same status
15、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, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit
16、Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, 3-1050 Brussels O 1994 Copyright reserved to CEN members Ref. No. EN 3286 : 1994 E Previous page is blank - CEN ENa328b 94 3404589 0073242 bBlt Page 2 EN 3286 : 1994 Foreword This European Standard has b
17、een 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 the member countries of
18、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 December 1994, and conflicting na
19、tional standards shall be withdrawn at the latest by December 1994. According to the Internal Regulations of CENKENELEC, the foilowing countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherland
20、s, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN EN*328b 94 m 3404589 0073243 510 m Page 3 EN 3286: 1994 1 Scope This standard specifies the characteristics of rigid single row ball bearings in corrosion resisting steel of diameter series O and 2 1) designed to withstand only
21、slow rotations and oscillations under load. They are intended for use between fixed and moving parts of the aircraft structure and their control mechanisms. The airframe rolling bearings defined in this standard are used from - 54 OC to + 150 OC. However, being lubricated with the following greases
22、: - very high pressure grease, ester type (code A), operational range - 73 OC to + 12 1 OC or - very high pressure grease, synthetic hydrocarbons, general purpose (code B), operational range - 54 OC to their field of application when lubricated with code A grease is limited to + 121 OC. + 177 OC (se
23、e EN 32801, 2 Normative 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
24、to or revisions 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. IS0 15 IS0 1 132 EN 2030 EN 2226 EN 3280 ROllinQ bearings - Radial bearings - Boundary
25、 dimensions - General plan Rolling bearings - Tolerances - Definitions Steel FE-PM43 - Hardened and tempered - Bars D S 150 mm - Aerospace series 2) Steel FE-PM43 - Hardened and tempered - Hand and die forgings De S 150 mm - Aerospace series 2) Aerospace series - Bearings, airframe rolling, rigid or
26、 self-aiigning - Technical specification 3) 3 Definition Bearing, full complement of balls (without cage), with filling slot. 4 Symbols The definitions of tolerances and clearances are given in IS0 1 132. Admp ADmp dr = deviation of a single bore diameter ADS Ga = axial internal clearance Gr = radia
27、l internal clerance si. = assembled bearing inner ring face runout with raceway Sa. = assembled bearing outer ring face runout with raceway Ki. = radial runout of assembled bearing inner ring La = radial runout of assembled bearing outer ring F, max. = permissible static axial load cs = permissible
28、static radial load. = single plane mean bore diameter deviation = single plane mean outside diameter deviation = deviation of a single outside diameter li See IS0 15. 2) Published as AECMA standard at the date of publication of this standard. 3) Published as AECMA pre-standard at the date of publica
29、tion of this standard. CEN EN*32b 94 m 3404589 0073244 457 m Page 4 EN 3286 : 1994 5 Required characteristics 5.1 Configuration : see figure i ; the bearings are fitted with either seals or shields. Values : see table 1. Dimensions - Tolerances - Clearances - Loads - Msrs 5.2 Surface roughness Racew
30、ays and rolling elements : Ra = 0,2 vim Bore, side faces and cylindrical outer surface : Ra = 0,8 pm. 5.3 Materials Inner ring : EN 2030 or EN 2226,r 58 HRC Outer ring : EN 2030 or EN 2226,r 58 HRC Balls : EN 2030,r 58 HRC Shields : Corrosion resisting material Seals : Poiytetrafluoroethyiene (PTFE)
31、 or polytetrafluoroethylene (PTFE) reinforced with fibregiass. B I- C f Type with shields Code P Type with seals Code E NOTE 1 : The installation of seals and shields is at the manufacturers option. NOTE 2 : The shields shall not extend beyond a C W. Figure 1 - CEN EN*328b 74 W 3404589 0073245 373 W
32、 r AD Mass kgll O00 P- 4: Starting torque in mN.m 1) Permissible static Iods 2) kN Pa,ge 5 EN 3286 : 1994 fable 1 Dimensions in millimetres d IB Tolerances m +2 Code I Nomind I -o12 AmP - O -8 051517 t+ 06 6 8 08 8 9 -I -1 1 I 12 I 21 0,3 to 03 t+ 42 I qq+ 20 20 42 23.5 9 10 +3 * -17 I 14 25 25 12 O
33、 - 10 L +3 -1 3 30 1 30 1 15 13 interna clearances m Runout tolerances max. prn Axid ma. Radial Axid Code Axid Radld E F. max. c. - si. - sa. - 40 G. 2.5 5 42 9.2 3 6,5 5.4 11.8 1 O0 2 to 13 4 7,5 7,7 17 5 8.5 83 19.5 6 10 10,6 23.3 8 12 12.2 26,9 40 3 to 18 17 40 - 120 10.5 15 18.7 41.2 133 18 21,2
34、 46,6 5 to 20 150 19 25 28.5 62,6 1) Definition, see EN 3280. 21 Axial and radial loads may be applied simultaneously. For ultimate static loads, see EN 3280. - CEN EN*32b 94 m 3404589 0071246 22T m Page 6 EN 3286: 1994 6 Designation EXAMPLE : Description block BEARING Identity block Number of this
35、standard Code for grease type (see 1 I Diameter code d (see table 1) Code for type (see figure 1) NOTE : If necessary, the code 19005 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 sid
36、e face only, using the identity block, see 6. Marking position and method are at the manufacturers option. 8 Technical specification See EN 3280. CEN EN*326b 94 m 3404569 0073247 Lbb m BS EN 3286 : 1994 National annex NA (informative) Committees responsible The United Kingdom participation in the pr
37、eparation of this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to %chnical Committee MCEI7 upon which the following bodies were represented: Bail and Roller Bearing Manufacturers Association Ministry of Defence Society of British Aerospace Companies Ltd. Nation
38、al annex NB (informative) Cross-references The British Standards corresponding to the international standards referred to in the text are as follows. International standard Corresponding British Standard IS0 15 : 1981 IS0 1132 : 1980 BS 6267 radial bearings BS 6107 Rolling bearings : tolerances Part
39、 1 : 1981 Glossary oftm 1982 Specqication for rolling bearings : boundary dimensions for CEN EN+328b 94 m 3404589 0073248 OT2 m BS EN 3286 : 1994 BSI 2 Park Street London W1A 2BS MI Linford Wood Milton Keynes MK14 6LE 9409 - 4 - 0.4k - FP . BSI - British Standards Institution BSI is the independent
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