ISO INTERNATIONAL STANDARD 155 Fourthedition 2019-03 Belt drives Pulleys Limiting valuesforadjustmentofcentres Transmissionsparcourroies-Poulies-Limitesdereglage d'entraxe Referencenumber IS0155:2019(E) ISO ISO2019 IS0155:2019(E) COPYRIGHTPROTECTEDDOCUMENT ISO2019 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 anyform orbyanymeans,electronic ormechanical, including photocopying,or posting beloworiso'smemberbodyinthecountryoftherequester. ISO copyright office CP401.Ch.deBlandonnet8 CH-1214Vernier,Geneva Phone:+41227490111 Fax:+4122749 0947 Email:copyright@iso.org Website:www.iso.org Published in Switzerland ii IS02019-Allrightsreserved IS0155:2019(E) Contents Page Foreword .iv 1 Scope .1 2 Normativereferences .1 3 Terms anddefinitions .1 4 Symbols. .1 5 Specifications .2 6 Factors. .3 Bibliography 6 IS0 2019-All rights reserved ii