ISO INTERNATIONAL STANDARD 487 Third edition 1998-07-15 Steel roller chains, types S and C, attachments and sprockets Chaines a rouleaux en acier, types S et C, plaques-attaches et roues dentees ISO Reference number ISO 487:1998(E) se with itted without license from IHS Not for Resale ISO 487:1998(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 liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternational 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 487 was prepared by Technical Committee ISO/TC 100, Chains and chain wheels for powertransmissionand conveyors. This third edition cancels and replaces the second edition (isO 487:1984), which has been revised to include the introduces a new range of higher strength chains ("H" series) and the "F4" attachments for the S45 and S55 chains whilst deleting the "corn picker" attachments as these are not deemed relevant to current practice in industry. Annex A forms an integral part of this International Standard. Annex B is for information only @ISO1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic InternationalOrganizationforStandardization Case postale 56 . CH-1211 Geneve 20 · Switzerland Internet [email protected] Printed in Switzerland ional Organization for Standardizatior INTERNATIONAL STANDARD ISO ISO 487:1998(E) Steel roller chains, types S and C, attachments and sprockets 1 Scope This International Standard specifies the characteristics of a range of steel roller chains, dimensionally derived from the malleable iron type and suitable for the conditions of operation and maintenance prevailing in such fields as agriculture, building, quarrying and related industry, mechanical handling, etc., and of associated chain sprockets. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision,andparties to agreementsbased on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO185:1988,Greycastiron—Classification. IsO 606:1994, Short-pitch transmission precision roller chains and chain wheels. 3 Chains 3.1 Nomenclature The nomenclature of chains and their component parts is given in figures 1 and 2. 3.2 Designation Steel roller chains shall be designated by the standard isO chain numbers given in table 1. 3.3 Dimensions The chains shall conform to the dimensions given in table 1. Maximum and minimum dimensions are specified to changeability, but are not the actual tolerances that should be used in manufacture. 3.4 Minimum tensile strength whichistestedtodestructionas described in3.4.2.Thisstrengthis notaworkingforce.It is intendedprimarilyas a manufacturers or their published data should be consulted. 3.4.2 A tensile force, not less than that specified in table 1, shall be applied slowly to the ends of a chain length containing at least five free pitches, by means of shackles permitting free movement on both sides of the chain centreline,inthenormalplaneofarticulation. CopyrightInternationalOrganizationforStandardization Not for Resale