1、BRITISH STANDARDBS EN 3729:2008Aerospace series Rings, threaded, self-locking, left-hand thread, in heat resisting steel FE-PA92HT (A286), silver platedICS 49.030.99g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g
2、48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3729:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 May 2008 BSI 2008ISBN 978 0 580 60979 4National forewordThis British Standard is the UK implementation of EN 37
3、29:2008.The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary prov
4、isions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 3729April 2008ICS 49.030.99English Ve
5、rsionAerospace series - Rings, threaded, self-locking, left-handthread, in heat resisting steel FE-PA92HT (A286), silver platedSrie arospatiale - Bagues filetes, freinage interne,filetage gauche, en acier rsistant chaud FE-PA92HT(A286), argentesLuft- und Raumfahrt - Gewinderinge, selbstsichernd,Link
6、sgewinde, aus hochwarmfestem Stahl FE-PA92HT(A286), versilbertThis European Standard was approved by CEN on 29 February 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard wit
7、hout any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language
8、made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,Franc
9、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORM
10、UNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3729:2008: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Required characteristics.4 3.1 Configuration Di
11、mensions Tolerances Masses.4 3.2 Material .4 3.3 Surface treatment 4 4 Designation 7 5 Marking .7 6 Technical specification .7 BS EN 3729:20083 Foreword This document (EN 3729:2008) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After en
12、quiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a natio
13、nal standard, either by publication of an identical text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of paten
14、t rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cypr
15、us, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 3729:20084 1 Scope This standar
16、d specifies the characteristics of threaded, self-locking rings, with left-hand threads, in FE-PA92HT, silver plated, chiefly used for axial location of bearing outer rings. Maximum test temperature of the parts: 450 C. NOTE These parts are designed to be used with 4H6H internal threads. 2 Normative
17、 references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 21711), Heat resisting steel FE-PA
18、92-HT Rm 900 MPa Bars Aerospace series 2)EN 2424, Aerospace series Marking of aerospace products EN 2786, Aerospace series Electrolytic silver plating of fasteners EN 3299, Aerospace series Shaft-nuts and threaded rings, self-locking, right- or left-hand MJ threads, in heat resisting steel FE-PA2601
19、 (A286), silver plated Technical specification EN 4317, Aerospace series Heat resisting alloy FE-PA2601 (X6NiCrTiMoV26-15) Non heat treated, forging stock a or D 200 mm EN 4318, Aerospace series Heat resisting alloy FE-PA2601 (X6NiCrTiMoV26-15) Solution treated and precipitation treated, bar and sec
20、tion De 100 mm, Rm 960 MPa ISO 5855-1, Aerospace MJ threads Part 1: General requirements 3 Required characteristics 3.1 Configuration Dimensions Tolerances Masses See Figure 1 and Table 1. Dimensions and tolerances are in millimetres. They apply after silver plating. 3.2 Material EN 2171 3.3 Surface
21、 treatment EN 2786, 5 m min. shall be measured at the pitch diameter of threads and 5 m to 15 m for other surfaces. 1) Inactive for new designation, see EN 4317 and EN 4318. 2) Published as ASD Standard at the date of publication of this standard. BS EN 3729:20085 Remove sharp edges 0,1 to 0,4. Key
22、1 N equally spaced scallops 2 Chamfer at the manufacturers discretion 3 Marking 4 Thread 5 Pitch diameter 6 Slot to indicate left-hand thread Details of form not stated and self-locking feature are left to the manufacturers discretion. Figure 1 6,3 0,8 BS EN 3729:20086 Table 1 Left-hand thread a E F
23、 H J K M N P b S Code Designation 0,2 0 0,2 + 0,2 0,1 0,1 0,2 0,1 max. 0,2 Mass kg/1 000parts 018 MJ181,5-4g6g-LH 13 6 7 12 16 3,5 18,8 1,7 7 019 MJS191,5-4g6g-LH 14 13 17 19,8 7,3 020 MJ201,5-4g6g-LH 18 20,8 7,6 021 MJS211,5-4g6g-LH 15 7 14 19 21,8 8 022 MJ221,5-4g6g-LH 16 15 20 22,8 8,4 023 MJS231
24、,5-4g6g-LH 17 8 16 21 23,8 8,8 024 MJ241,5-4g6g-LH 18 17 22 24,8 9,2 025 MJ251,5-4g6g-LH 19 9 18 23 25,8 9,6 026 MJ261,5-4g6g-LH 20 19 24 26,8 10 027 MJ271,5-4g6g-LH 20 25 27,8 10,4 028 MJ281,5-4g6g-LH 21 26 28,8 10,8 029 MJS291,5-4g6g-LH 22 10 21 27 29,8 11,2 030 MJ301,5-4g6g-LH 23 7,5 22 28 3,7 30
25、,8 1,8 11,5 031 MJS311,5-4g6g-LH 24 23 29 31,8 12 032 MJ321,5-4g6g-LH 25 12 24 30 4 32,8 12,5 033 MJ331,5-4g6g-LH 26 25 31 33,8 13 034 MJS341,5-4g6g-LH 27 26 32 34,8 13,5 035 MJ351,5-4g6g-LH 28 27 33 35,8 14 036 MJ361,5-4g6g-LH 29 9 28 34 36,8 14,5 037 MJS371,5-4g6g-LH 30 29 35 37,8 15 038 MJ381,5-4
26、g6g-LH 31 30 36 38,8 15,5 039 MJ391,5-4g6g-LH 32 31 37 39,8 16 040 MJ401,5-4g6g-LH 33 10 8 32 38 4 6 40,8 2 16,5 aIn conformity with ISO 5855-1 in none self-locking zone. bMaximum diameter of outer envelope circle after realizing self-locking feature. BS EN 3729:20087 4 Designation EXAMPLE Descripti
27、on block RING Identity block EN3729-040 Number of this standard Thread code (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style A, as indicated on the Figure 1. 6 Technical specification EN 3299 BS EN 3729:200
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