ISO INTERNATIONAL STANDARD 4183 Third edition 1995-07-01 Asl rtermut Dc Bec Belt drives Classical and narrow V-belts - Grooved pulleys (system based on datum width) étroites - Poulies a gorges (systeme basé sur la largeur de référence) ISo Reference number ISO 4183 1995(E) Copyright International Organization for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO4183:1995(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technicai committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 4183 was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts), Subcommittee SC 1, Veebelts and grooved pulleys. This s third edition cancels sand replaces s the second edition (ISO 4183.1989), of which it constitutes a minor revision. C ISO 1995 All rights reserved Uniess 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 the publisher International Organization for Standardization Case Postale 56 . CH-1211 Geneve 20: Switzerland Printed in Switzerland i n for Standardization No reproduction or networking permitted without license from IHS Not fr esale INTERNATIONAL STANDARD ISO ISO4183:1995(E) Belt drives - Classical and narrow V-belts -- Grooved pulleys (system based on datum width) Scope ISO 3:1973,Preferred numbers-Series of preferred numbers. This International Standard specifies the principal di- Iso 254:1990, Belt drives-Pulleys— Quality, finish mensions of grooved pulleys for classical V-belts (sections Y, Z, A, B, C, D and E) and narrow V-belts and balance. (sections SPZ, SPA, SPB and SPC) specified in the ISO 255:1990,Belt drives PulleysforV-belts(sys terminology system based on datum width. tembasedon datumwidth)- Geometrical inspection It is important that narrow belts are not used with of grooves. pulleys uniquely designed for classical belts, and, on Is0 1081:1980, Drives using V-belts and grooved theotherhand,thatmultiplebeltdrivesarenot used pulleys - Terminology. with joined V-belts IsO 1101:1983, Technical drawings -- Geometrical tolerancing Tolerancing of form, orientation, lo- cation and run-out --- Generalities, definitions, sym- bols, indications on drawings. 2 Normative references 3Preliminary notes The following standards contain provisions which, 3.1 The datum width is regarded as the basic di- through reference in this text, constitute provisions ofthisinternationalStandard.Atthetimeofpubli- mension of standardization for the groove and for the cation,theeditionsindicatedwerevalid.Allstandards corresponding classical and narrow V-belts considered aresubjecttorevision,andpartiestoagreements as a whole. based on this International Standard are encouraged to investigate the possibility of applying the most re- 3.2 Knowledge of the datum line position and of the cent editions of the standards indicated below. datum width is essential for defining the groove pro- Members of IEC and ISO maintain registers of cur- file, the datum diameter of the pulley and the location rently valid International Standards. of the belt in the pulle