ISO INTERNATIONAL STANDARD 15172 First edition 2005-07-01 Road vehicles Wheels Nut seat strength tests Véhicules routiers Roues Essai de résistance des sieges d'écrou Reference number ISO 15172:2005(E) @ ISO 2005 ISO15172:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation ? ISO2005 All rights reserved. Unless 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 either isO at the address below or 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 2005 - All rights reserved ISO 15172:2005(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 technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnical committeehasbeen 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 15172 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 19, Wheels. ization'ghts reserved ii anizationfor'Stand Copvriaht International Oraanization for Standardizatior INTERNATIONAL STANDARD ISO 15172:2005(E) Road vehicles Wheels Nut seat strength tests 1 Scope This International Standard specifies a test method to evaluate the strength of the nut seat of wheels intended foruseonpassengercars,lighttrucks andmulti-purposevehicles.Whilethistestensurestheminimum strength of the nut seat, the wheel must also have a degree of flexibility to allow torque retention. This test area to ensure enough strength for the rotational force in tightening a nut against the nut seat. 2 Test procedures 2.1 General The principle of this test is to apply an axial load to the nut seat and determine permanent deformation of the nut seat. An additional test to measure yield strength is also specified. 2.2 Wheels for test Use only fully processed wheels including all coatings representative of production parts intended for the vehicle. 2.3Test equipment The test equipment shall be capable of supporting the complete wheel mounting area with a rigid flat surface which is dimensionally representative of the vehicle hub (see Figure 1). The equipment shall provide a hardened (Rc 45 min) punch or load applicator with a shape designed to match the seat face and the fastener contactarearepresentativeof that specifiedforthewheel.Thepunchorloadapplicatorshallprovide a measured,non-rotationalaxial forceofF(themaximumloadobtainedintheboltwhenth