1、BSI Standards PublicationBS EN 4538-2:2014Aerospace series Bearings,spherical plain, in corrosionresisting steel with self-lubricating liner elevatedload under low oscillations Narrow series Dimensionsand loadsPart 2: Inch seriesBS EN 4538-2:2014 BRITISH STANDARDNational forewordThis British Standar
2、d is the UK implementation of EN 4538-2:2014.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purpor
3、t to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 81520 1ICS 49.035Compliance with a British Standard cannot confer immunity fromlegal obligations.This
4、 British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2014.Amendments issued since publicationDate Text affectedBS EN 4538-2:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4538-2 July 2014 ICS 49.035 English Version Aerospace series -
5、Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations - Narrow series - Dimensions and loads - Part 2: Inch series Srie arospatiale - Rotules, en acier rsistant la corrosion garniture autolubrifiante charge leve sous faibles oscillat
6、ions - Srie troite - Dimensions et charges - Partie 2: Srie en inches Luft- und Raumfahrt - Gelenklager, aus korrosionsbestndigem Stahl mit selbstschmierender Beschichtung, hohe Belastung bei geringer Drehbewegung - Schmale Reihe - Mae und Belastungen - Teil 2: Inch Reihe This European Standard was
7、approved by CEN on 21 March 2013. 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-date lists and bibliographical references concerning such natio
8、nal standards may be obtained on application to the CEN-CENELEC Management Centre 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 langua
9、ge and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
10、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-
11、CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4538-2:2014 EBS EN 4538-2:2014EN 4538-2:2014 (E) 2 Contents Page Foreword . 3 1 Scope . 4 2 Normative references . 4
12、3 Symbols and definitions 4 4 Required characteristics 5 4.1 Configuration, dimensions, tolerances and masses 5 4.2 Surface roughness . 5 4.3 Loads and starting torques . 7 4.4 Materials and surface treatments 7 4.5 Surface treatment on the inner ring 7 5 Designation . 8 6 Marking 8 7 Technical spec
13、ification 8 BS EN 4538-2:2014EN 4538-2:2014 (E) 3 Foreword This document (EN 4538-2:2014) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standar
14、d 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 national standard, either by publication of an identical text or by endorsement, at the latest by
15、 January 2015, and conflicting national standards shall be withdrawn at the latest by January 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such p
16、atent 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedoni
17、a, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4538-2:2014EN 4538-2:2014 (E) 4 1 Scope This European Standard spec
18、ifies the characteristics of spherical plain bearing in corrosion resistant steel, with self-lubricating liner, narrow series, elevated load under low oscillations applications. They shall be used in the temperature range 55 C to 163 C. 2 Normative references The following documents, in whole or in
19、part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2030, Aerospace series Steel X105CrMo17 (1.4
20、125) Hardened and tempered Bars De 150 mm 1)EN 2424, Aerospace series Marking of aerospace products EN 3161, Aerospace series Steel FE-PM3801 (X5CrNiCu17-4) Air melted, solution treated and precipitation treated, bar a or D 200 mm, Rm 930 MPa EN 4540, Aerospace series Bearings, spherical plain, in c
21、orrosion resisting steel with self-lubricating liner elevated load under low oscillations Technical specification ISO 1132-1, Rolling bearings Tolerances Part 1: Terms and definitions ISO 8075, Aerospace Surface treatment of hardenable stainless steel parts 3 Symbols and definitions For the purposes
22、 of this document, the symbols and definitions given in ISO 1132-1 apply. dmp= single plane mean bore diameter deviation. ds= deviation of a single bore diameter. Dmp= single plane mean outside diameter deviation. Ds= deviation of a single outside diameter. = angle of tilt of the outer ring with res
23、pect to the inner ring, the spherical surface of the outer ring being completely in contact with the inner ring. 1) Published as ASD-STAN Prestandard at the date of publication of this standard. http:/www.asd-stan.org/ BS EN 4538-2:2014EN 4538-2:2014 (E) 5 4 Required characteristics 4.1 Configuratio
24、n, dimensions, tolerances and masses See Figures 1 and 2 and Table 1. The dimensions are expressed in millimetres and apply after surface treatment. 4.2 Surface roughness See Figures 1 and 2. The values are expressed in micrometres and apply before surface treatment. Figure 1 Bearing without swaging
25、 groove, code S 3,2,0,2 0,8 BS EN 4538-2:2014EN 4538-2:2014 (E) 6 Key 1 Break sharp corner 0,12 max. Figure 2 Bearing with swaging groove, code R Table 1 Dimensions in millimetres d B C D Tolerances d1 a K N P R r r1T b Mass m g/piece Code nom. 0 0,06 0,1 dmpdsDmpDsmin. + 0,1 0 0 0,2 + 0,1 0 max. mi
26、n. 0,5 03 4,826 7,137 5,537 14,287 0 13 + 3 13 0 13 + 3 15 7,442 11,1 12,7 0,7 0,127 to 0,254 0,254 to 0,508 0,127 to 0,381 0,76 10 20 min 9 04 6,35 8,712 6,35 16,667 9,245 12,7 15,087 05 7,937 9,525 7,137 19,05 10,642 15,062 16,51 0,9 30 14 06 9,525 10,312 7,925 20,637 12,065 15,875 18,08 0,254 to
27、0,432 0,508 to 0,762 0,889 9 18 07 11,113 11,1 8,712 23,017 13,462 17,449 20,472 4 8 22 08 12,7 12,7 9,906 25,4 15,24 19,837 22,250 4 1,4 31 09 14,288 14,275 11,1 27,78 17,018 22,225 24,638 1,01 40 10 15,875 15,875 12,7 30,163 18,77 25,4 27 54 12 19,05 19,05 15,062 36,513 23,368 31,75 33,35 0,762 to
28、 1,02 1,14 95 14 22,225 22,225 17,856 39,687 24,892 34,125 36,525 122 16 25,4 25,4 20,243 44,45 + 3 15 28,397 39,675 41,3 9 176 20 31,75 27,762 23,926 50,8 36,703 45,237 47,7 1,5 0,254 to 0,508 6 240 24 38,1 33,32 28,83 61,912 47,5 57,15 58,85 405 28 44,45 38,887 33,45 71,437 50,71 64 68,33 658 aAtt
29、ention should be paid to the possible indentation of the support mountings by the inner ring bearing faces. bMaximum values for the user. 3,2,0,2 0,8 BS EN 4538-2:2014EN 4538-2:2014 (E) 7 4.3 Loads and starting torques See Table 2. Table 2 Code Permissible static loads kN Permissible dynamic radial
30、loads 25 000 cycles Minimum projected surface area b Starting torques Radial CsAxial a CskN mm2N.m 03 17,68 0,66 6,67 44,5 0,06 0,34 04 26,86 1,91 14,77 61,3 0,11 0,56 05 38,92 3,11 24,30 84,5 06 46,88 4,89 29,37 97,6 07 58,71 6,22 35,82 121 08 79,62 9,34 46,28 161,2 09 103,19 16,37 57,85 201,5 10 1
31、35,67 20,99 73,20 270,9 12 206,39 30,02 105,02 405,6 14 276,68 41,58 134,61 531,3 0,23 0,9 16 365,64 54,09 169,10 712,4 20 405,00 78,00 200,27 978,9 0,40 1,50 24 619,39 117,06 322,08 1 517,3 28 1 274,32 151 448,90 1 994,8 aThese values apply to bearings without staking groove. For bearings with stak
32、ing groove, the push-out loads may be smaller than these values. bThe projected surface area values are given to determine for each bearing size the duty cycle loads. The duty cycles are defined in the technical specification EN 4540. 4.4 Materials and surface treatments Inner ring: steel EN 2030, h
33、ardness 55 HRC to 62 HRC. Outer ring: steel EN 3161, hardness 28 HRC to 37 HRC before swaging. Liner: self-lubricating low friction wear resistant material consistent with the requirements of EN 4540. 4.5 Surface treatment on the inner ring Surface treatment at the convenience of the bearing manufac
34、turer to fulfil the requirements of the dimensional standard and of the technical specification (see ISO 8075). BS EN 4538-2:2014EN 4538-2:2014 (E) 8 5 Designation EXAMPLE Description block BEARING Identity block EN4538-2-12A Number of this standard Diameter code (see Table 1) Technology code Where
35、the following technology codes are applied: code A, bonded liner technology; code B, injected or moulded liner technology; without code, both technologies can be used at users convenience. NOTE If necessary, the code I9005 should be placed between the description block and the identity block. 6 Mark
36、ing EN 2424, style A The marking position is at the manufacturers option. Bearings ordered without technology code shall be delivered marked in accordance with its technology code. 7 Technical specification See EN 4540. This page deliberately left blankBSI is the national body responsible for prepar
37、ing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited.British Standards Institution (BSI)BSI Group Headquarters389 Chiswick High Road L
38、ondon W4 4AL UKAbout usWe bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions.The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through o
39、ur open consultation process. Organizations of all sizes and across all sectors choose standards to help them achieve their goals.Information on standardsWe can provide you with the knowledge that your organization needs to succeed. Find out more about British Standards by visiting our website at o
40、r contacting our Customer Services team or Knowledge Centre.Buying standardsYou can buy and download PDF versions of BSI publications, including British and adopted European and international standards, through our website at where hard copies can also be purchased. If you need international and fo
41、reign standards from other Standards Development Organizations, hard copies can be ordered from our Customer Services team.SubscriptionsOur range of subscription services are designed to make using standards easier for you. For further information on our subscription products go to British Standard
42、s Online (BSOL) youll have instant access to over 55,000 British and adopted European and international standards from your desktop. Its available 24/7 and is refreshed daily so youll always be up to date. You can keep in touch with standards developments and receive substantial discounts on the pur
43、chase price of standards, both in single copy and subscription format, by becoming a BSI Subscribing Member. PLUS is an updating service exclusive to BSI Subscribing Members. You will automatically receive the latest hard copy of your standards when theyre revised or replaced. To find out more about
44、 becoming a BSI Subscribing Member and the benefits of membership, please visit a Multi-User Network Licence (MUNL) you are able to host standards publications on your intranet. Licences can cover as few or as many users as you wish. With updates supplied as soon as theyre available, you can be sur
45、e your documentation is current. For further information, email .RevisionsOur British Standards and other publications are updated by amendment or revision. We continually improve the quality of our products and services to benefit your business. If you find an inaccuracy or ambiguity within a Briti
46、sh Standard or other BSI publication please inform the Knowledge Centre.CopyrightAll the data, software and documentation set out in all British Standards and other BSI publications are the property of and copyrighted by BSI, or some person or entity that owns copyright in the information used (such
47、 as the international standardization bodies) and has formally licensed such information to BSI for commercial publication and use. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any me
48、ans electronic, photocopying, recording or otherwise without prior written permission from BSI. Details and advice can be obtained from the Copyright & Licensing Department.Useful Contacts:Customer ServicesTel: +44 845 086 9001Email (orders): Email (enquiries): SubscriptionsTel: +44 845 086 9001Email: Knowledge CentreTel: +44 20 8996 7004Email: Copyright & LicensingTel: +44 20 8996 7070Email: NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
