1、BS ISO 3547-2:2017Plain bearings WrappedbushesPart 2: Test data for outside and insidediametersBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 3547-2:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 3547-2:2017. It su
2、persedes BS ISO 3547-2:2006 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee MCE/12, Plain bearings.A list of organizations represented on this committee can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 ne
3、cessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 94009 5 ICS 21.100.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standa
4、rd was published under the authority of the Standards Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 3547-2:2017 ISO 2017Plain bearings Wrapped bushes Part 2: Test data for outside and inside diametersPaliers lisses Bag
5、ues roules Partie 2: Donnes dessai pour le diamtre extrieur et le diamtre intrieurINTERNATIONAL STANDARDISO3547-2Third edition2017-02Reference numberISO 3547-2:2017(E)BS ISO 3547-2:2017ISO 3547-2:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll
6、 rights reserved. Unless otherwise 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 fr
7、om either ISO at the address 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 3547-2:2017ISO 3547-2:2017(E)Foreword iv1 Scope . 12 Nor
8、mative references 13 Terms and definitions . 14 Symbols and units . 25 Presentation of data on drawing 26 Tests . 46.1 Test A . 46.2 Test B . 46.3 Test C . 46.4 Test D . 47 Test A . 47.1 Description . 47.2 Calculation basis 47.2.1 Elastic reduction, v, of outside diameter, Do47.2.2 Calculation of di
9、ameter of checking block, dch, 1.57.2.3 Effective cross-sectional area, Acal.57.2.4 Calculation of checking load, Fch.67.2.5 Limits for z 77.3 Obtaining data Example . 77.4 Presentation of data on drawing Example . 88 Test B . 88.1 Description . 88.2 Obtaining data Example . 98.3 Presentation of dat
10、a on drawing Example . 99 Test C . 99.1 Description . 99.2 Obtaining data Example 109.3 Presentation of data on drawing Example 1010 Test D .1110.1 Description 1110.2 Obtaining data Example 1110.3 Presentation of data on drawing Example 1111 Designation of tests according to this document .12Bibliog
11、raphy .13 ISO 2017 All rights reserved iiiContents PageBS ISO 3547-2:2017ISO 3547-2:2017(E)ForewordISO (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 ou
12、t through ISO 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 non-governmental, in liaison with ISO, also take part in the work. ISO co
13、llaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical 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 appr
14、oval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance 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 th
15、e subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details 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).
16、Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organ
17、ization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 3, Dimensions, tolerances and construction details.This third edition cancels and
18、replaces the second edition (ISO 3547-2:2006), which has been technically revised.A list of all the parts in the ISO 3547 series can be found on the ISO website.iv ISO 2017 All rights reservedBS ISO 3547-2:2017INTERNATIONAL STANDARD ISO 3547-2:2017(E)Plain bearings Wrapped bushes Part 2: Test data f
19、or outside and inside diameters1 ScopeThis document specifies the test data for outside and inside diameters of wrapped bushes made of mono and multi-layer bearing material for plain bearing applications. It also specifies test designations.Since the wall thickness of the bush is measured in the fre
20、e condition, no special test data are required for this on the drawing (see ISO 3547-5 and ISO 3547-6).NOTE Depending on the manufacturing method, the back of the bushes can show isolated light depressions and, similarly, bushes with lubrication holes, grooves and bore indentations can show distorti
21、on. It is therefore suggested to measure the wall thickness away from these areas.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies.
22、 For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 286-2, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shaftsISO 3547-
23、1:1), Plain bearings Wrapped bushes Part 1: DimensionsISO 3547-4, Plain bearings Wrapped bushes Part 4: MaterialsISO 3547-5, Plain bearings Wrapped bushes Part 5: Checking the outside diameterISO 4378-1, Plain bearings Terms, definitions, classification and symbols Part 1: Design, bearing materials
24、and their propertiesISO 4378-4, Plain bearings Terms, definitions, classification and symbols Part 4: Basic symbolsISO 12301, Plain bearings Quality control techniques and inspection of geometrical and material quality characteristicsISO 13715, Technical drawings Edges of undefined shape Vocabulary
25、and indication3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 4378-1 and ISO 4378-4 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online browsing platform: available at h t t p :/ www .i
26、so .org/ obp IEC Electropedia: available at h t t p :/ www .electropedia .org/ 1) Under preparation. Stage at the time of publication: ISO/DIS 3547-1:2016. ISO 2017 All rights reserved 1BS ISO 3547-2:2017ISO 3547-2:2017(E)4 Symbols and unitsSee Table 1.Table 1 Symbols and unitsSymbol Description Uni
27、tAcalReduced area of cross section (calculated value) of the bush mm2B Width of the bush mmCiInside chamfer mmCoOutside chamfer mmDflFlange diameter mmDHHousing bore diameter mmDiInside diameter of the bush mmDi, chInside diameter of the bush in the ring gauge mmDoOutside diameter of the bush mmFchC
28、hecking load mmdch, 1Diameter of the checking block or ring gauge mmdch, 2Diameter of the setting plug or plug gauge mmr Flange radius mms1Thickness of the backing layeramms2Thickness of the bearing material layeramms3Wall thicknessammsflFlange thickness mmDoTolerance of Dommv Elastic reduction of t
29、he outside diameter under checking load Fchmmz Distance apart of the halves of the checking block mmz Indicator reading mmzDCircumference indicator reading for test D mmaFor bushes which are made of a single material, s1= s3or s2= s3.5 Presentation of data on drawingThe drawing should show either th
30、e outside diameter, Do, and the wall thickness, s3, or the outside diameter, Do, and the inside diameter, Di.Wall thickness, s3, and inside diameter, Di, shall not be specified together on the same drawing. See Figure 1.2 ISO 2017 All rights reservedBS ISO 3547-2:2017ISO 3547-2:2017(E)1a) Type C cyl
31、indrical bush1b) Type F flanged bushKey1 butt jointaThickness of the bearing material layer: only valid as a basis for calculation in accordance with 7.2.bCimay be a chamfer or break edge, in accordance with ISO 13715.c0,2 mm min. for nominal wall thickness 0,5 mm.drmax= s3Figure 1 Cylindrical and f
32、langed bush taken from ISO 3547-1 ISO 2017 All rights reserved 3BS ISO 3547-2:2017ISO 3547-2:2017(E)6 Tests6.1 Test ACheck the outside diameter, Do, using a checking block in a test rig and setting plug, in accordance with Clause 7.6.2 Test BCheck the outside diameter, Do, using two ring gauges, in
33、accordance with Clause 8.6.3 Test CCheck the inside diameter, Di,of a bush pressed into a ring gauge, in accordance with Clause 9.6.4 Test DCheck the outside diameter, Do, using precision measuring tape, in accordance with Clause 10.7 Test A7.1 DescriptionThis test is applicable to Doup to 180 mm.Th
34、e test rig consists of a base on which the two parts of the checking block are mounted (see ISO 3547-5).A setting plug is inserted in the checking block and the two halves of the checking block are pressed towards one another using the given checking load, Fch, and the indicator reading set.The sett
35、ing plug is then removed and replaced by the bush to be checked, and the checking load reapplied.After the bush has been inserted, the distance, z, between the two halves of the checking block changes under checking load Fchand the distance indicator reading, z, is recorded.From this, Docan be calcu
36、lated.Flanged bushes may be checked either before or after flange forming at the option of the manufacturer.7.2 Calculation basis7.2.1 Elastic reduction, v, of outside diameter, DoThe elastic reduction, v, of the outside diameter, Do, is the difference between Dounder zero load and the resultant dia
37、meter when the checking load, Fch, is applied. Force Fchshall be sufficient to ensure that the bush conforms properly to the surface of the test housing and that the results in the elastic reduction, v, of the outside diameter are in accordance with Table 2.4 ISO 2017 All rights reservedBS ISO 3547-
38、2:2017ISO 3547-2:2017(E)Table 2 Elastic reduction, v, of the outside diameter, Do, under checking load, FchDimensions in millimetresDonominalv 6 0,003 6 12 0,006 12 80 0,013 80 180 0,0257.2.2 Calculation of diameter of checking block, dch, 1The diameter of the checking block can be calculated from t
39、he specified upper limit of the outside diameter, Do, max, of the bush from Formula (1):dD vch,o,max1= (1)7.2.3 Effective cross-sectional area, AcalIn order to calculate the checking load, Fch, the effective cross-sectional area, Acal, of the bush shall first be determined.Acaldepends on the materia
40、l type, bush width B, s1and s2. See Table 3.Table 3 Nominal dimensions for wall thickness, s3, backing material, s1, and bearing layer, s2Dimensions in millimetresNominal thicknessesWall thickness (see ISO 3547-1)Backing material of bushes made from multi-layer materialsBearing material layer of bus
41、hes made from multi-layer materialss3s1s20,5 0,3 0,20,75 0,53 0,221,0 0,68 0,321,5 1,1 0,42,0 1,55 0,452,5 2,05 0,45The nominal size for B, s1and s2shall then be substituted into the corresponding equation given in Table 4. ISO 2017 All rights reserved 5BS ISO 3547-2:2017ISO 3547-2:2017(E)Table 4 Ca
42、lculation of effective cross-sectional area, AcalMaterial designation key (according to ISO 3547-4)Calculation of effective cross sectional area AcalD1, D2, P1, P2, T2, Z1 ABscal=1B1, B2, D3, W1, W2, Y1, Y2ABscal=12D4ABscal=13R1, R2, R3, R4 ABsscal= +123S1, S2, S3, S4, S5, S6 ABsscal= +1227.2.4 Calc
43、ulation of checking load, FchSee Table 5.Table 5 Formulae for FchDimensions in millimetresDonominalFch 61 500Adcalch,1(rounded up 100 N) 6 123 000Adcalch,1(rounded up 250 N) 12 806 000Adcalch,1(rounded up 500 N) 80 18012 000Adcalch,1(rounded up 500 N)NOTE When calculating Fch, the factor 1 500, 3 00
44、0, 6 000 or 12 000 has the unit N/mm.Lubrication grooves can reduce Acal, depending upon their shape, position and method of manufacture. If the proportion is over 10 %, this shall be considered in the calculation.For bushes which are not made in accordance with ISO 3547-1, the arithmetic average of
45、 the two limiting dimensions rounded up to the nearest 0,1 mm shall be used for B, s1and s2.6 ISO 2017 All rights reservedBS ISO 3547-2:2017ISO 3547-2:2017(E)7.2.5 Limits for zUpper limit: 0Lower limit:pi2Do(rounded up to the nearest 0,005 mm)7.3 Obtaining data ExampleGiven:Bush ISO 3547 30A 34 30 S
46、3Outside diameter:Domm=+340 0450 085,(in accordance with ISO 3547-1:, Table 7)Nominal wall thickness: s3= 2 mmNominal thickness of the steel backing:s1= 1,55 mm (see Table 3)s2= s3 s1= 2 mm 1,55 mms2= 0,45 mmNominal width: B = 30 mmMaterial: steel/copper alloy S3 (in accordance with ISO 3547-4)Resul
47、ts:From 7.2.2:dch, 1= Do, max v= 34,085 mm 0,013 mmdch, 1= 34,072 mmFrom 7.2.3:ABsscalmm= += +122230 1550452,Acalmm= 53 252, ISO 2017 All rights reserved 7BS ISO 3547-2:2017ISO 3547-2:2017(E)From 7.2.4:FAdchcalch,N= =6 0006 00053 2534 0729 3771,FchN= 9 500 (rounded up to the nearest 500 N)From 7.2.5
48、: zUpper limit: 0Lower limit:p2Do = =pi20 040 0 062 80065, ,mm mm mm(rounded up to the nearest 0,005 mm)7.4 Presentation of data on drawing ExampleSee Figure 2 for an example of how the data obtained in 7.3 should be presented on the drawing.12Test A to ISO 3547-2Checking block and setting plug dch,
49、 1= dch, 2= 34,072 mmChecking load Fch= 9 500 NLimit for z = 0 and 0,065 mmOutside diameter Do= 34,045 to 34,085 mmKey1 position of butt joint2 checking blockFigure 2 Example of presentation of data on drawing8 Test B8.1 DescriptionThe test is applicable to Doup to 180 mm.The test is carried out with two ring gauges, a GO ring gauge
