BS ISO BRITISH STANDARD 4378-5:2009 Plain bearings Terms. definitions. classification and symbols Part 5: Application of symbols ICS 01.040.21; 21.100.10 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BS ISO 4378-5:2009 National foreword This British Standard is theUK implementation of ISO4378-5:2009. The UK participation in its preparation was entrusted to Technical Committee MCE/12, Plain bearings. Alist of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity fromlegal obligations. This British Standard Amendments/corrigendaissuedsincepublication was published under the authority of the Standards Policy and Date Comments Strategy Committee on 30 September 2009 BSI 2009 ISBN9780 58058568 5 BS ISO 4378-5:2009 ISO INTERNATIONAL STANDARD 4378-5 First edition 2009-09-01 Plain bearings Terms, definitions, classification and symbols Part 5: Application of symbols Palierslisses-Termes,definitions,classificationetsymboles Partie5:Applicationdessymboles Reference number ISO 4378-5:2009(E) ISO @ISO 2009 BS ISO 4378-5:2009 ISO 4378-5:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTED DOCUMENT ISO 2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either so at the address below or ISO copyright office Case postale 56.CH-1211Geneva 20 Tel. + 41 22 749 0111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2009All rights reserved BSISO4378-5:2009 ISO4378-5:2009(E) Contents Page Foreword.. .iv Introduction. V 1 Scope.. 2 Normative references... 3 Symbols and terms ... 3.1 Symbols of the Roman alphabet. 3.2 Symbols of the Greek alphabet..... 18 ISO 2009 - All rights reserved ii BSISO4378-5:2009 ISO4378-5:2009(E) Foreword IsoO (the International Organization for Standardization) is a worldwide federation of national standards bodies International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75%of the memberbodies casting avote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO4378-5waspreparedbyTechnicalCommitteeISO/TC123,Plainbearings,SubcommitteeSC6,Terms andcommon items. This first edition cancels and replaces IsO 4378-4:1997 as well as ISO 7904-2:1995, which have been technically revised. Iso 4378 consists of the following parts, under the general title Plain bearings- Terms, definitions, classificationand symbols: Part1:Design,bearingmaterialsandtheirproperties Part 2:Friction and wear Part 3: Lubrication Part 4: Basic symbols Part 5:Application of symbols iv IsO 2009 - All rights reserved BS ISO 4378-5:2009 ISO4378-5:2009(E) Introduction risk of error in the interpretation of standards and technical literature. This uncertainty leads to the continuous addition of supplementary designations, which only serves to increase the