ISO INTERNATIONAL STANDARD 20516 Firstedition 2007-08-01 Rolling bearings ---- Aligning thrust ball bearings and aligning seat washers --- Boundary dimensions Roulements - Butees a billes spheriques et contreplaques spheriques --Dimensions d'encombrement Reference number ISO 20516:2007(E) SO @ISO 2007 ISO20516:2007(E) PDF disclaimer This PDFfile may contain embedded typefaces.Inaccordance with Adobe'slicensing policy, thisfle may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer perfoming the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. parameters wereoptimizedforprinting.Everycare hasbeen taken toensure that thefleis suitableforuse by isomemberbodies.In the unlikely event that a problem relating to it is found, please inform the Centrai Secretariat at the address given below. COPYRIGHTPROTECTEDDOCUMENT @ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utlized in any form or by any means, Iso's member body in the country of the requester. ISO copyright office Case postale 56 .CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2007 - All rights reserved ISO20516:2007(E) Foreword Iso (the Internationai 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 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. International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2. The main task of technical committees is to prepare International Standards. 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO 20516 was prepared by Technical Committee ISO/TC 4, Rolling bearings @Iso 2007 --Allrights reserved ISO20516:2007(E) INTERNATIONAL STANDARD Rolling bearings --- Aligning thrust ball bearings and aligning seat washers --- Boundary dimensions 1 Scope This International Standard specifies dimensions of single-direction and double-direction aligning thrust ball bearings with and without aligning seat washers. 2Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Iso 582, Rolling bearings --- Chamfer dimensions --- Maximum values Iso5593,Rollingbearings-Vocabulary Iso 15241, Rolling bearings - Symbols for quantities 3Terms and definitions For the purposes of this document, the terms and definitions given in Iso 5593 and the following apply. 3.1 aligning thrust ball bearing (single-direction bearing) thrust ball bearing which can accommodate permanent angular misalignment between its axis and the axis of its housing by means of an aligning housing washer NOTE The spherical back face of the aligning housing washer mates with a matching concave spherical surface either in an aligning seat washer or its housing. 3.2 aligning thrust ball bearing <double-direction bearing> thrust ball bearing which can accommodate permanent angular misaignment between its axis and the axis of its housing by means of aligning housing washers NOTE The spherical back