1、BRITISH STANDARD AEROSPACE SERIES BS EN 3541:1992 Rod ends, adjustable, self-aligning ball bearing with threaded shank Dimensions,torques, clearances and loads The European Standard EN3541:1992 has the status of a BritishStandardBSEN3541:1992 This BritishStandard, having been prepared under the dire
2、ctionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15July1992 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/14 Draft for comment90/78664DC ISBN 0 580 20977 6 Cooperati
3、ng 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 Dansk
4、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 Italy Ent
5、e 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 Standardiseringskommissionen i
6、 Sverige Switzerland Association suisse de normalisation UnitedKingdom BritishStandards Institution Amendments issued since publication Amd. No. Date CommentsBSEN3541:1992 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN3541 3 Nation
7、al annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN3541:1992 ii BSI 01-2000 National foreword This BritishStandard has been prepared under the direction of the Aerospace Standards Policy Committee and is the Englis
8、h language version of EN3541, Aerospace series Rod ends, adjustable, self-aligning ball-bearing with threaded shank Dimensions, torques, clearances and loads, published by the European Committee for Standardization (CEN). EN3541 was produced as a result of international discussions in which the Unit
9、edKingdom 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
10、 pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, pages2 to6, 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 i
11、nside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN3541 April1992 UDC629.7.05:621.827.1:621.82.053.004.1:621.828 Descriptors: Aircraft industry, flight control, rod ends, end fitting with self-aligning ball bearing, threaded shank, dimensions, static loads English version Aerospac
12、e series Rod ends, adjustable, self-aligning ball bearing with threaded shank Dimensions, torques, clearances and loads Srie arospatiale Embouts rglables rotule sur billes et tige filete Dimensions,couples, jeux et charges Luft- und Raumfahrt Einstellbare senkpfe mit Pendelkugellager und Gewindescha
13、ft Mae, Momente, Lagerluft und Belastungen This European Standard was approved by CEN on1992-03-27. 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-
14、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 versions (English, French, German). A version in any other language made by translation unde
15、r 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherla
16、nds, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. 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. EN3541:1992 EEN3541:1
17、992 BSI 01-2000 2 Foreword 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 of this Association, this Standard has successively received the approval of the National Association
18、s and the Official Services of the member countries of AECMA, prior to its presentation toCEN. National Standards identical to this European Standard shall be published at the latest by1992-10-31 and conflicting national standards shall be withdrawn at the latest by1992-10-31. According to the Commo
19、n CEN/CENELEC Rules, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. Contents Page Foreword 2 1 Scope
20、3 2 Field of application 3 3 Normative references 3 4 Symbols 3 5 Required characteristics 3 5.1 Dimensions Tolerances Masses 3 5.2 Surface roughness 3 5.3 Loads, rotational starting torques and internal clearances 4 5.4 Materials 4 5.5 Surface treatment 4 6 Designation 5 7 Marking 6 8 Technical spe
21、cification 6 Figure 4 Table 1 5 Table 2 5EN3541:1992 BSI 01-2000 3 1 Scope This standard specifies the characteristics of adjustable rod ends with self-aligning ball bearing and threaded shank. They consist of: a rod end comprising: circumferential groove to identify location; either seals or shield
22、s; an optional longitudinal groove for locking purpose; an inner ring with balls. 2 Field of application These rod ends are intended for use with flight control rods or rods for aerospace structures. They are intended to be used in the temperature range:54 C to+150 C. However, being lubricated with
23、the following greases(seeEN2067): Extreme pressure grease, type ester (code A), operating range73 C to+121 C Extreme pressure grease, type synthetic hydrocarbon general usage (code B), operating range54 C to+177 C their field of application in the code A is limited to+121 C. 3 Normative references I
24、SO1132, Rolling bearings Tolerances Definitions. ISO3353, Aerospace construction Rolled threads Runout and lead threads. ISO5855-2, Aerospace construction MJthreads Part2: Limit dimensions for bolts and nuts. EN2031, Steel FE-PL31 Hardened and tempered bars Aerospace series 1) . EN2067, Aerospace se
25、ries Rod ends, self-aligning ball bearing Technical specification 2) . EN2099, Aerospace series Steel FE-PL71 Case hardening, hardened and tempered BarsD e u 100mm 3) . EN2133, Cadmium plating of steel with maximum specified tensile strength equal to or less than1450MPa and copper and copper alloys
26、Aerospace series 1) . EN2135, Aerospace series Steel FE-PL61 Casehardening, hardened and tempered BarsD e u 40mm 2) . 4 Symbols 5 Required characteristics 5.1 Dimensions Tolerances Masses Configuration: seeFigure. Dimensions, tolerances and masses: seeFigure and/or Table 1 and Table 2; values after
27、cadmium plating. 5.2 Surface roughness SeeFigure, values prior to cadmium plating. 1) Published as AECMA standard at the date of publication of the present standard. 2) Published as AECMA pre-standard at the date of publication of the present standard 3) In preparation at the date of publication of
28、the present standard. % ds = Deviation of a single bore diameter % dmp = Single plane mean bore diameter deviation = Angular displacement permissible between inner and outer ring axis of a set of aligning bearing Y s = Axial load coefficientEN3541:1992 4 BSI 01-2000 5.3 Loads, rotational starting to
29、rques and internal clearances SeeTable 2. 5.4 Materials Rod end: steel EN2135 or EN2099; heat treated to obtain: by case hardening, hardening and tempering a surface hardness ofW 58HRC on the raceway; by hardening and tempering a strength R m W 830MPa on the whole rod end. 5.5 Surface treatment Rod
30、end: all surfaces except for the raceway cadmium plated according to EN2133,7m to20m except threads5m to10m; chromate passivation optional. Inner ring : steel EN2031. Balls : steel EN2031. Shields : corrosion resisting material. Seals : polytetrafluoroethylene (PFTE) or glass fabric reinforced polyt
31、etrafluoroethylene (PFTE). NOTEThe circumferential groove and the longitudinal groove over the distance F shall be painted red. Figure EN3541:1992 BSI 01-2000 5 Table 1 Table 2 6 Designation Each rod end shall only be designated as in the following example: where the following codes are applied: NOT
32、EIf necessary, the originator codeI9005 may be introduced between the description block and identity block. Dimensions in millimetres Code d B C D d 1 min. r min. degrees Thread designation a F b min. G c min. H L 0,5 M N S Nominal diameter Tolerances (m) % dmp % ds 05 5 12 8,5 20,5 7,6 0,5 8 MJ8 1,
33、004h6h 18 33 33 48 1,6 6,6 0,7 06 6 14 10,0 22,5 8,6 MJ10 1,254h6h 22 37 37 54 2,4 8,0 0,8 08 8 15 28,5 11,1 MJ12 1,254h6h 25 42 42 62 10,2 0,8 10 10 20 14,0 32,0 13,6 MJ14 1,504h6h 31 48 48 73 3,2 12,2 1,0 a Thread: IS05855-2; method of manufacture: rolled. b F =minimum length of engaged threads: i
34、ncluded thickness of lock washer and height of nut. c G =minimum length of useful threads. Code Permissible static radial load C s a (kN) Rotational starting torque (mN.m) Internal clearance max. (mm) Mass . g with seals with shields radial axial 05 4,70 2 1 0,02 0,08 35 06 6,75 4 2 60 08 8,90 10 5
35、85 10 14,00 12 7 130 a F amax.=where Y s =3,2; F amax. and C sare defined in EN2067. L = left hand thread R = right hand thread K = with groove T = without groove A = ester type grease B = synthetic hydrocarbon grease 0 0,12 + 0,1 0 + 0,2 0 + 0,3 0,2 + 0,5 0 + 0,1 0 0 0,1 0 8 +2 10 C s Y s -EN3541:1
36、992 6 BSI 01-2000 7 Marking In addition to the manufacturers own marking, each rod end shall be marked(seeFigure) using the identity block specified in clause6. 8 Technical specification SeeEN2067.BSEN3541:1992 BSI 01-2000 National annex NA (informative) Committees responsible The UnitedKingdom part
37、icipation in the preparation of this European Standard was entrusted 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)
38、Federation of Wire Rope Manufacturers of Great Britain Institute of Petroleum Ministry of Defence Society of British Aerospace Companies Ltd. National annex NB (informative) Cross-references The BritishStandards corresponding to the International Standards referred to in the text are as follows. The
39、re are no BritishStandards corresponding to the EN standards referred to in the text. BritishStandards identical in number and title will be published in due course. Publication referred to Corresponding BritishStandard ISO1132 BS6107 Rolling bearings: tolerances Part1:1981 Glossary of terms ISO335
40、BS A231:1982 Specification for runout and lead threads for rolled threads ISO5855-2 BS6293 MJ threads for aerospace construction Part2:1982 Specification for dimensions for bolts and nutsBS EN 3541:1992 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent na
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