ISO INTERNATIONAL STANDARD 12301 Second edition 2007-10-15 Plain bearings —Quality control techniques and inspection of geometrical and material quality characteristics Palierslisses-Techniquesdecontroledelaqualiteetverifications des caracteristiques de qualite geometriques et desmateriaux Referencenumber ISO 12301:2007(E) @ISO2007 Not for Resall ISO12301:2007(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 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 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. COPYRIGHTPROTECTEDDOCUMENT ISO2007 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.+4122749 0111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISo 2007-All rights reserved without license from IHS Not for Resale ISO12301:2007(E) Contents Page Foreword. 1 Scope 2 Normative references 3 Terms and definitions. 4 Symbols and units. 5 Summaryofdefinedqualitycharacteristics .5 6 Geometricalqualitycharacteristics 6.1 Wall thickness, $3... 6.2 Outside diameter, D。 13 6.3 Inside diameter, D ... 14 6.4 Width, B..... 17 6.5 Locating features.. 18 6.6 Lubricantfeed and distribution features.. 19 6.7 Surface conditions.... 20 6.8 Crush height, a (peripheral length). 21 6.9 Freespread.... 22 6.10 Straightness of sliding surface. 23 6.11 Joint face taper, h.... 6.12 6.13 Joint displacement, B ... 25 6.14 Height of thrust half-washer, H... .25 6.15 Flatness.. 26 6.16 Flange diameter, Di . 27 6.17 Distance between flanges, ay. 28 6.18 Flange thickness, Sf 29 6.19 Perpendicularity (squareness)offlange. 30 6.20 Geometric deviations ... 31 7 Material quality characteristics 35 7.1 Metallic solid materials ... .35 7.2 Metallic multilayer material. .36 7.3 Polymer layer material .38 7.4 Solid polymer material .39 7.5 Sintered material. 39 AnnexA (informative)Calculation oftangential load. Bibliography ili from IHS Not for Resa ISO12301:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies 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, governmental and InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. 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 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. analysisandassurance. This second edition cancels and replaces the first edition (Is0 12301:1992), which has been technically @ISO 2007-All