ISO INTERNATIONAL STANDARD 8826-1 First edition 1989-08-01 Technical drawings - Rolling bearings - Part 1: General simplified representation Dessins techniques - Roulements - Partie 1: Représentation simplifiee generale Reference number ISO 8826-1 : 1989 (E) ISO 8826-1 : 1989 (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 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 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 approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 8826-1 was prepared by Technical Committee ISO/TC 10, Technical drawings. ISo 8826 will consist of the following parts, under the general title Technical drawings - Rolling bearings: Part 1: General simplified representation Part 2: Detailed simplified representation ISO 1989 All rights reserved. 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 OrganizationforStandardization Case postale 56 . CH-1211 Geneve 20 . Switzerland Printed in Switzerland ii ISO 8826-1 : 1989 (E) Introduction The principle of drawing practice is to depict the object to scale using lines. In simplified representations, only essential features are shown, preferably in outline (in orderto save time and effort). The degree of simplification depends on the kind of object represented, the scale of the drawing and the purpose of the documentation. This means that either a general simplified representation or a detailed one may be used. A detailed representation shows more details of a rolling bearing, for example the number of rows or the possibility of alignment (see iSO 8826-2). In order to avoid misunderstandings, only one kind of simplification, either the general or the detailed simplified representation, should be used on a drawing ii