ISO INTERNATIONAL STANDARD 19349 First edition 2019-03 Plain bearings with liquid lubrication Lubricant supply arrangements and monitoring Paliers lisses a lubrification fluide -Equipements de graissage et de surveillance Referencenumber ISO19349:2019(E) ISO IS02019 IS019349:2019(E) COPYRIGHTPROTECTEDDOCUMENT @I IS02019 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 orIso'smemberbody in the country of the requester. ISO copyright office CP 401: Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax: +41 22749 09 47 Email:[email protected] Website: www.iso.org Published in Switzerland ii @IS02019-All rights reserved IS0 19349:2019(E) Contents Page Foreword ..iv Introduction. ...V 1 Scope. .1 2 Normativereferences ..1 3 Terms and definitions .1 4 Lubrication arrangements. .1 4.1 Self-contained bearings .1 4.2 Circulatedlubrication (forced lubrication) 1 .1 4.2.2 Oilfeedandoil return 2 4.2.3 Oilreservoirs .2 4.3 Hydrostatic lubrication .3 5 Lubricants .3 5.1 Suitablelubricantsforplainbearings 3 5.2 Oilcleanliness .4 6 Lubricant heating 7 Monitoring .5 7.1 Requirementsfordesign orselectionofthelubricationmonitoringsystem 5 7.2 Requirements forthrough-lifeoperation ofthe overall bearing and lubrication system... .5 Bibliography 6 @IS02019-All rightsreserved ili