ISO INTERNATIONAL STANDARD 4378-2 Third edition 2017-07 Plain bearings Terms, definitions, classification and symbols Part 2: Friction and wear Paliers lisses - Termes, definitions, classification et symboles - Partie 2: Frottement et usure Reference number IS0 4378-2:2017(E) so International Organization for Standardization @ IS0 2017 ted without license from IHS IS0 4378-2:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland 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 copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122 749 09 47 [email protected] www.iso.org Intenationai br PrganizationforStandardization @ IS0 2017 - All rights reserved I by IHS unde etworking permitted without license from IHS IS0 4378-2:2017(E) Contents Page Foreword ..iv Introduction. 1 Scope.. 2 Normative references ..1 3 Terms and definitions 1 ntemaonalganizatin7All rights reserved iii vided by IHS underI se with ISi ted without license from IHS