ISO INTERNATIONAL STANDARD 7148-1 Third edition 2012-10-01 Plain bearings - Testing of the tribological behaviour of bearing materials - Part 1: Testing of bearing metals Paliers lisses - Essai du comportement tribologique des materiaux antifriction Partie 1: Essai des matériaux métalliques Reference number IS0 7148-1:2012(E) ISO @IS02012 IS0 7148-1:2012(E) COPYRIGHT PROTECTED DOCUMENT IS02012 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 IsO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 0111 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland ii @ IS0 2012 - All rights reserved IS0 7148-1:2012(E) Contents Page Foreword .iv 1 Scope. 2 Normative references ..1 3 Symbols and units ..1 4 Special features for the tribological testing of metallic bearing materials .2 5 Test methods. .2 5.1 Test method A - Pin-on-disc. 5.2 Test method B - Block-on-ring .3 5.3 Test method C Rotation under thrust load 4 6 Test specimens. ..5 6.1 Disc. .5 6.2 Ring. .5 6.3 Pin. 5 6.4 Block. .5 6.5 Sleeve. .5 6.6 Plate. .6 6.7 Preparation of the test specimens ..6 7 Test methods and test equipment .1 8 Lubrication ..7 9 Designation ..7 10 Test conditions 1 11 Test procedure ..8 Annex A (informative) Test report .9 Bibliography .11 @ IS0 2012 - All rights reserved iii