ISO INTERNATIONAL STANDARD 17485 First edition 2006-06-15 Bevel gears IsO system of accuracy Engrenagesconiques-Systeme/sod'exactitude Referencenumber ISO 17485:2006(E) @ISO 2006 Not for Resale ISO 17485:2006(E) PDFdisclaimer 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 accepts noliabilityinthisarea. 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 parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ?ISO2006 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 memberbody in the country of the requester. ISO copyright office Casepostale56.CH-1211Geneva20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2006 -All rights reserved ted without license from IHS Not for Resale ISO 17485:2006(E) Contents Page Foreword. Introduction 1 Scope 2 Normativereferences 3 Terms, definitions and symbols. 3.1 Terms and definitions.. 3.2 Fundamental terms and symbols. 4 Application of classification system.. 4.1 General....... 4.2 Accuracygradeclassification 4.3 Tolerance direction... 4.4 Additional characteristics. 5 Tolerances 5.1 Tolerance values 5.2 Stepfactor... 5.3 Rounding rules.. 5.4 Tolerance equations 6 Applicationofmeasuringmethods 11 6.1 Methods of measurement. 6.2 Recommended measurementcontrolmethods 6.3 Measurement data filtering.. 12 6.4 Toothcontactpatterninspections. 12 AnnexA (informative)Exampletolerancetables. 14 AnnexB(informative)Single-flank composite measuring method 16 Annex c (informative) Accuracy of small module bevel gears... AnnexD(informative)Interpretationofcompositedata. Bibliography 32 ili Copyright Inter from IHS Not for Re ISO17485:2006(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 InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an InternationalStandardrequiresapprovalbyatleast75%of thememberbodiescastingavote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO17485waspreparedbyTechnicalCommitteeISO/TC60,Gears. @ISO2006-Allrightsreserved ISO17485:2006(E) Introduction international standardization. For these and other reasons, IsO/TC 60 approved the project based on a proposeddocument,ANSi/AGMA2009-B01,BevelGearClassification,Tolerances,andMeasuringMethods At an early stage it was decided to develop two documents: this International Standard, with accuracy grades and definitions, and a separate Technical Report, ISO/TR 10064-6, containing inspection practice and considerations,CMM measurements, contact pattern checking,and advanced topics suchas bevel gearflank formanalysis. Prior to the development of