ISO INTERNATIONAL STANDARD 4378-1 Fourth edition 2017-07 Plain bearings Terms, definitions, classification and symbols Part 1: Design, bearing materials and their properties Paliers lisses-Termes,definitions, classification etsymboles Partie 1: Conception, materiaux pour paliers et leurs propriétes Reference number IS0 4378-1:2017(E) [So @IS02017 Copyright Intemational Organization for Standardization IS04378-1:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,or posting on the internet or an intranet,without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8. CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Copyrightilhlmafinal Organization foe Standardzatin IS0 2017-All rights reserved IS04378-1:2017(E) Contents Page Foreword ..iv Introduction. 1 Scope. 2 Normativereferences 3 Terms and definitions Bibliography .39 ymaaghrd ili