1、Plain bearings Quality assurance of sample types Definitions, applications and testingBS ISO 12308:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of ISO 12308:2017. It supersedes BS EN 12308:1998, w
2、hich is withdrawn.The UK participation in its preparation was entrusted to Technical Committee MCE/12, Plain bearings.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contr
3、act. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 92911 3ICS 21.100.10Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the aut
4、hority of the Standards Policy and Strategy Committee on 30 June 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 12308:2017 ISO 2017Plain bearings Quality assurance of sample types Definitions, applications and testingPaliers lisses Assurance de la qualit
5、des types dchantillons Dfinitions, utilisation et essaisINTERNATIONAL STANDARDISO12308Second edition2017-04-15Reference numberISO 12308:2017(E)BS ISO 12308:2017ISO 12308:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless o
6、therwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the addre
7、ss below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 12308:2017ISO 12308:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms a
8、nd definitions . 14 Inspection and test report for samples . 15 Marking 26 Types of plain bearing samples, definition and manufacturing process, application and testing . 27 Designation 2Bibliography 4 ISO 2017 All rights reserved iiiContents PageBS ISO 12308:2017ISO 12308:2017(E)ForewordISO (the In
9、ternational 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 h
10、as been 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
11、 standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in ac
12、cordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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. Deta
13、ils of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an en
14、dorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the followi
15、ng URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 5, Quality analysis and assurance.This second edition cancels and replaces the first edition (ISO 12308:1994), which has been technically revised.iv ISO 2017 All rights
16、 reservedBS ISO 12308:2017Plain bearings Quality assurance of sample types Definitions, applications and testing1 ScopeThis document defines the types of plain bearing samples exchanged between purchaser and manufacturer.In the field of internal combustion engines and other series production, it is
17、necessary to work with different types of samples depending on the purpose.Types of samples are as follows. Samples used for tests and examinations which are carried out in the experimental stage and pilot lot stage. These include fitting samples, prototype samples and intermediate samples. Samples
18、used to prove that the quality is in accordance with the quality requirements (dimensions, material and performance specification). These include initial samples and reference samples and, if necessary, intermediate samples.NOTE See ISO 3534 (all parts) and ISO 9000 for further information. Samples
19、which give selective information about particular quality characteristics of a plain bearing, relating to their conformity with the specifications. These involve reference and characteristic modification samples.2 Normative referencesThe following documents are referred to in the text in such a way
20、that some or all of their content constitutes requirements 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 12301, Plain bearings Quality control techniques and inspect
21、ion of geometrical and material quality characteristics3 Terms and definitionsNo terms and definitions are listed in this document.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Onlin
22、e browsing platform: available at http:/www.iso.org/obp 4 Inspection and test report for samplesTogether with the samples, the manufacturer shall supply a completed test report to the purchaser with data on dimensions, material and/or performance, as appropriate. In the fields of application listed
23、in Clause 1, the “Initial Sample Test Report” is used for the initial samples and the characteristic modification samples. The purchaser shall share the result of inspection with the manufacturer.INTERNATIONAL STANDARD ISO 12308:2017(E) ISO 2017 All rights reserved 1BS ISO 12308:2017ISO 12308:2017(E
24、)The test results shall be kept by the manufacturer subject to agreement between the manufacturer and purchaser.5 MarkingAll sample supplies shall be clearly marked as samples by the manufacturer in agreement with the customer.6 Types of plain bearing samples, definition and manufacturing process, a
25、pplication and testingAs described in Table 1.7 DesignationEXAMPLE Designation of an initial sample (S4) with test report:Sample ISO 12308 S4 Table 1 Types of plain bearing samples, definitions and manufacturing process, application and testingType of sample SymbolDefinition and manufacturing proces
26、sApplicationTesting (by manufacturer)Fitting sample S1 Plain bearing applied to fitting tests onlyFitting tests on stationary machines, internal combustion engines, etc.Fitting dimensions onlyComplete data of each fitting dimension for each bearingRecording of these individual test results in the te
27、st reportPrototype sampleS2 Plain bearing, destined for functional tests, inspection or tests by the purchaserNOTE These samples are manufactured using available equipment.Technical developments at the purchaser functional tests, e.g. experimental run-in machines, internal combustion engines, gear b
28、oxes, etc. performance in test rig, e.g. wear resistance for establishing the specification of quality characteristics (dimensions, materials, etc.)Agreed specified quality characteristicsComplete quality testing of all specified quality characteristics carried out on the quantity agreedRecording of
29、 these individual test results in the test reportThe number of samples should not exceed 200.2 ISO 2017 All rights reservedBS ISO 12308:2017ISO 12308:2017(E)Type of sample SymbolDefinition and manufacturing processApplicationTesting (by manufacturer)Intermediate sampleS3 Plain bearing which correspo
30、nds to a large degree to the “initial sample”, but has only partially been manufactured by means of the equipment and processes used for series productionPilot lot and initial seriesNOTE Use to be agreed between manufacturer and purchaser.Intermediate sample shall be substituted by the “ini-tial sam
31、ple” later on.Quality characteris-tics in accordance with ISO 12301Quantity tested should be 20 max.Recording of these individual test results in the test reportThe “non-series” process cycles and sequences shall clearly be indicated by the manufacturer in the reportInitial sample S4 Plain bearing,
32、completely manufactured by means of the equipment and processes used for series production under the appropriate control conditionsNOTE The initial sample is to furnish the proof that the manufacturer is in a position to comply with the quality requirements (dimensions, material, function, etc.) req
33、uested by the purchaser.Series assembly after approvalQuality characteris-tics in accordance with ISO 12301Quantity tested should be 20 max.Recording of these individual test results in the test reportIt is advisable to keep one of the accepted samples available at the manufac-turers and/or purchase
34、rs premises for a period to be agreed.NOTE Performance testing is carried out by the purchaser only.Reference sampleS5 Plain bearing representing the desired value of a quality characteristicNOTE These samples are taken by the manufacturer from the series production or from the delivery ready for de
35、spatch and tested as agreed upon with the purchaser.The reference samples are delivered to the purchaser for the control test, together with the determined actual values of all quality character-istics designated for the test, in order to check, for example, the comparabil-ity of the test methods/eq
36、uipment used.Dimensional and material testing of all quality characteristics agreed between manufacturer and purchaser (e.g. nip, bearing material compo-sition)Test data to be given by the manufacturerThe reported test values may substitute a receiving inspection carried out at the purchasers premis
37、es.Characteristic modification sampleS6 Plain bearing manufactur-er after the execution of a specification modificationSeries assembly after approvalOnly those quality characteristics concerned by the modification need be tested.Quantity tested should be 20 max.Recording of these individ-ual test re
38、sults in the test report ISO 2017 All rights reserved 3BS ISO 12308:2017ISO 12308:2017(E)Bibliography1 ISO 3534 (all parts),Statistics Vocabulary and symbols2 ISO 9000, Quality management systems Fundamentals and vocabulary4 ISO 2017 All rights reservedBS ISO 12308:2017This page deliberately left bl
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