ISO INTERNATIONAL STANDARD 8123 First edition 1991-04-15 Road vehicles --- Diametral pitch starter motor pinions Vehicules routiers -- Pignons de demarreurs a diametral pitch Reference number ISO8123:1991(E) Not for Resale ISO 8123:1991(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standardsbodies (lsO memberbodies).The work of preparing Internationa! Standards is normally carried out through iso technical committees, Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with isO, also take part in the work. Iso collaborates closely with the Internationa! Electrotechnica! Commission (tEC) 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 Inter- bodies casting a vote. International Standard isO 8123 was prepared by Technical Committee ISO/TC 22, Road vehicles. ISO1991 All rights reserved. No part of this publicatlon may be reproduced or utilized in any form permission In writing from the publlsher. Internatlonal OrganizationforStandardization Case Postale 56 : CH-1211 Geneve 20 : Switzerland Printed in Switzerland il Not for Resale I without license from IHS ISO 8123:1991(E) INTERNATIONAL STANDARD Road vehicles --- Diametral pitch starter motor pinions Scope Dimensions 1 Detailed tooth limit dimensions and the base tangent This International Standard.specifies the diametral length as the. inspection value, W2, are given in pitches, pressure angles, number of teeth and other tabie 1 for diametral pitch starter motor pinions. tooth characteristics which are necessary to ensure interchangeability of starter motor pinions used for NOTE 1 The symbols, which are in accordance with starter motors mounted on reciprocating internal Is 701:1976, International gear notation - Symbo/s for combustion engines for road vehicles. geometrical data, are illustrated in figure 1. Copyright International Organization for Standardization e with ISC Not for Resale