ISO INTERNATIONAL STANDARD 12129-2 Secondedition 2019-04 Plain bearings Tolerances - Part 2: Tolerances on form and position and surface roughness for shafts and thrust collars Paliers lissesTolérances- Partie 2: Tolerances de forme et de position et rugosité de surface des arbres et collets de butée Reference number ISO 12129-2:2019(E) ISO @ IS0 2019 IS0 12129-2:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 12129-2:2019(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 General. 5 Dimensions. ...1 6 Design. ...4 7 Testing 8 Designation. 4 Bibliography ..5 @ IS0 2019 - All rights reserved iii