1、BS ISO 22879:2016Castors and wheels Requirements for castors forfurnitureBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 22879:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 22879:2016.The UK participation in its pr
2、eparation was entrusted to Technical Committee MHE/7/-/1, Castors and wheels.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 contract. Users are responsible for its correc
3、t application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 92964 9 ICS 97.140 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy
4、 Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 22879:2016 ISO 2016Castors and wheels Requirements for castors for furnitureRoues et roulettes Exigences pour roulettes pour meublesINTERNATIONAL STANDARDISO22879Second edition2016-12-01Re
5、ference numberISO 22879:2016(E)BS ISO 22879:2016ISO 22879:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any me
6、ans, 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 address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-12
7、14 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 22879:2016ISO 22879:2016(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 14 Dimensions and classification 14.1 Characteristics . 14.2 Fixing system 14.3 C
8、astor type 24.3.1 General 24.3.2 Type H . 34.3.3 Type W 34.3.4 Type C 34.3.5 Type S 34.4 Dimensions . 34.5 Performance level . 45 Requirements for testing . 45.1 General . 45.2 Standard conditions . 45.2.1 Environmental conditions . 45.2.2 Test sequence 45.3 Impact performance . 55.3.1 Test objectiv
9、es, apparatus and procedures . 55.3.2 Test values . 55.3.3 Tolerances 55.3.4 Acceptance criteria 55.4 Electrical resistance test . 65.4.1 Test objectives, apparatus and procedures . 65.4.2 Test values . 65.4.3 Tolerances 65.4.4 Acceptance criteria 65.5 Manual locking device 65.5.1 Test objectives, a
10、pparatus and procedures . 65.5.2 Test values . 65.5.3 Tolerances 75.5.4 Acceptance criteria 75.6 Dynamic test 75.6.1 Test objectives, apparatus and procedures . 75.6.2 Test values . 75.6.3 Tolerances 75.6.4 Acceptance criteria 85.7 Rolling resistance 85.7.1 Test objectives, apparatus and procedures
11、. 85.7.2 Test values . 85.7.3 Tolerances 85.7.4 Acceptance criteria 95.8 Swivel resistance . 95.8.1 Test objectives, apparatus and procedures . 95.8.2 Test values . 95.8.3 Tolerances 95.8.4 Acceptance criteria 95.9 Static load performance 9 ISO 2016 All rights reserved iiiContents PageBS ISO 22879:2
12、016ISO 22879:2016(E)5.9.1 Test objectives, apparatus and procedures . 95.9.2 Test values . 95.9.3 Tolerances . 105.10 Stem retention 105.10.1 Test objectives, apparatus and procedures 105.10.2 Test values 105.10.3 Acceptance criteria .106 Conformity .107 Marking .117.1 Product marking . 117.2 Markin
13、g of electrically conductive or antistatic castors/wheels 11Bibliography .12iv ISO 2016 All rights reservedBS ISO 22879:2016ISO 22879:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepar
14、ing International Standards is normally carried out 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 li
15、aison with ISO, also take part in the work. ISO collaborates 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 Di
16、rectives, Part 1. In particular the different approval 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
17、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. 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 decl
18、arations 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 endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information a
19、bout ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 110, Industrial trucks.This second edition results from the reinstatement of ISO 22
20、879:2004, which was withdrawn in 2014 and with which it is technically identical. ISO 2016 All rights reserved vBS ISO 22879:2016ISO 22879:2016(E)IntroductionThe industry stakeholders have expressed the need for this important International Standard. Therefore, the interested parties agreed to repub
21、lish the withdrawn International Standard as a new edition.In order to ensure that the International Standard will be actively used in the ISO member countries, worldwide, procedures may be necessary to replace the existing national standards and technical regulations by the International Standard.O
22、nly by these actions will there be the guarantee that products in accordance with International Standards can be shipped worldwide freely without any technical barriers.vi ISO 2016 All rights reservedBS ISO 22879:2016Castors and wheels Requirements for castors for furniture1 ScopeThis document speci
23、fies the technical requirements, the appropriate dimensions and the requirements for the testing of castors for furniture.It is applicable to castors for general furniture applications, but specifically excludes those for swivel chairs and other specialized applications.NOTE Castors for swivel chair
24、s are specified in ISO 22880.2 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. For undated references, the latest edition of the re
25、ferenced document (including any amendments) applies.ISO 22878:2004, Castors and wheels Test methods and apparatus3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 22877 apply.ISO and IEC maintain terminological databases for use in standardization at t
26、he following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obpNOTE Symbols are given in ISO 22878:2004, Annex A.4 Dimensions and classification4.1 CharacteristicsThe characteristics of a castor are fixing system, ca
27、stor type, dimensions, and performance level.4.2 Fixing systemThe fixing system includes the top plates, stem and circlip, threaded stem and other fixing systems.Fixings shall be chosen with reference to the application of the castor.INTERNATIONAL STANDARD ISO 22879:2016(E) ISO 2016 All rights reser
28、ved 1BS ISO 22879:2016ISO 22879:2016(E)4.3 Castor type4.3.1 GeneralCastors are classified into four types (H, W, C and S). These all apply to the castor designs illustrated in Figure 1 to Figure 3.Figure 1 Single-wheel swivel castorFigure 2 Twin-wheel swivel castor2 ISO 2016 All rights reservedBS IS
29、O 22879:2016ISO 22879:2016(E)Figure 3 Inclined axle castor4.3.2 Type HCastors with plain wheels are defined as Type H, hard tread.These castors are suitable for carpeted floors.4.3.3 Type WCastors with resilient tyred wheels are defined as Type W, soft tread.These castors are suitable for hard stone
30、, wooden or tiled floors, or those featuring non-textiled covering.4.3.4 Type CThese castors are electrically conductive. Type C castors may have a hard or soft tread.These castors should have either modified Type H or Type W wheels.4.3.5 Type SThese are inclined axle castors.4.4 DimensionsFigure 1
31、to Figure 3 show typical castor designs. Table 1 shows the specified dimensions and the corresponding symbols. ISO 2016 All rights reserved 3BS ISO 22879:2016ISO 22879:2016(E)Table 1Dimensions in millimetres and angles in degreesDescription Castor designs Symbol DimensionWheel diameter All D min. 20
32、Tread widthSingle-wheel castorsbT3min. 7, 5Twin-wheel castors min. 2 5External corner radius All r1min. 1,5Tread curvature Single-wheel castors r3min. 110Angle of inclination Inclined axle castors max. 25The wheel(s) of a fixed castor shall conform to the dimensions shown in Figure 1, Figure 2 or Fi
33、gure 3 (as appropriate).4.5 Performance levelThe requirements for castors will vary depending on the environment in which they are intended to be used. The levels are shown in Table 2.Table 2LevelLoad capacity Fmax(N)1 1002 2003 3004 4005 Requirements for testing5.1 GeneralTest apparatus and procedu
34、res shall be as specified in ISO 22878.5.2 Standard conditions5.2.1 Environmental conditionsTests shall be carried out at a temperature between 17 C and 23 C. During the 24 h prior to the test, the samples shall remain at the specified temperature, in an environment with a relative humidity between
35、40 % and 70 %.Samples shall not be artificially cooled during testing.5.2.2 Test sequenceA new castor shall be taken and the impact test performed.A second new castor shall be taken and the remaining tests performed in the sequence shown in Table 3.4 ISO 2016 All rights reservedBS ISO 22879:2016ISO
36、22879:2016(E)Table 3Reference in this documentTest sequence Castor designsTest procedure given in ISO 22878:20045.3 Impact performance All 4.125.4 Electrical resistance Type C castors 4.45.5 Manual locking device Castors with manual locking devices 4.65.6 Dynamic All 4.135.7 Rolling resistance All 4
37、.155.8 Swivel resistance Swivel castors 4.165.9 Static load All 4.95.10 Stem retention All 4.175.3 Impact performance5.3.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.12.5.3.2 Test valuesTest values shall be as listed in Table 4.Table 4Performance levelM
38、ass of free-falling weight mDrop height h2kg mm1 2,5 1502 5,0 1503 5,0 2004 5,0 3005.3.3 TolerancesThe tolerances shall be as shown in Table 5.Table 5Symbol UnitToleranceAcceptable Unitm kg+2%0kgh2mm+30mm5.3.4 Acceptance criteriaNo part of a castor shall become detached during the tests with the loa
39、ds and drop heights specified in Table 4. On completion of the test, the rolling, pivoting or braking performance shall not be impaired. ISO 2016 All rights reserved 5BS ISO 22879:2016ISO 22879:2016(E)5.4 Electrical resistance test5.4.1 Test objectives, apparatus and proceduresThese shall be as spec
40、ified in ISO 22878:2004, 4.4.5.4.2 Test valuesThe test values shall be as listed in Table 6.Table 6Symbol Value DescriptionFmaxVariable Load capacityF175 % to 10 % of FmaxTest loadR Variable Electrical resistance5.4.3 TolerancesThe tolerance shall be as shown in Table 7.Table 7Symbol UnitToleranceAc
41、ceptable UnitF17N+2%0N5.4.4 Acceptance criteriaThe resistance, R, of the sample tested shall be R 105 for conductive castors or wheels, and 105 R 107 for antistatic castors or wheels.5.5 Manual locking device5.5.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004
42、, 4.6.5.5.2 Test valuesThe test values shall be as listed in Table 8.Table 8Symbol Value DescriptionFmaxVariable Load capacityF11Equal to FmaxTest loadFK120 % of FmaxHorizontal tractive force6 ISO 2016 All rights reservedBS ISO 22879:2016ISO 22879:2016(E)5.5.3 TolerancesThe tolerances shall be as sh
43、own in Table 9.Table 9Symbol UnitToleranceAcceptable UnitF11N+2%0NFK1N+4%0N5.5.4 Acceptance criteriaThe wheel shall not revolve around its axis when a force, FK1, is applied.5.6 Dynamic test5.6.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.13.5.6.2 Test
44、valuesThe test values shall be as listed in Table 10.Table 10SymbolValue for Type H castorValue for Type W castorValue for Type S castorDescriptionFmaxVariable Variable Variable Load capacityF7125 % of Fmax125 % of Fmax125 % of FmaxTest loadh12 mm 2 mm 0 mm Height of obstaclesnr2500 cycles 1 000 cyc
45、les 1 000 cycles Number of cyclestz13 min 3 min 3 min Running periodtz22 min 2 min 2 min Pausefz6,5 cycles/min 6,5 cycles/min 6,5 cycles/min Frequency5.6.3 TolerancesThe tolerances shall be as shown in Table 11. ISO 2016 All rights reserved 7BS ISO 22879:2016ISO 22879:2016(E)Table 11Symbol UnitToler
46、anceAcceptable UnitF7N+2%0Nh1mm05%mmnr2+1%0tz1min 10 stz2min 10 sfzcycles/min03%cycles/min5.6.4 Acceptance criteriaNo castor or a part of a castor shall become detached during the tests. Each castor shall still be capable of carrying out its function at the end of the test programme. On completion o
47、f the test, the rolling, pivoting or braking performance shall not be impaired.5.7 Rolling resistance5.7.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.15.5.7.2 Test valuesThe test values shall be as listed in Table 12.Table 12Symbol Value DescriptionF11V
48、ariable Test loadF83 F11Test load (including frame)v350 mm/s Travel speed5.7.3 TolerancesThe tolerances shall be as shown in Table 13.Table 13Symbol UnitToleranceAcceptable UnitF1N+2%0Nv3mm/s 5 % mm/s8 ISO 2016 All rights reservedBS ISO 22879:2016ISO 22879:2016(E)5.7.4 Acceptance criteriaThe horizon
49、tal force, Fw3, shall not exceed 15 % of F8.5.8 Swivel resistance5.8.1 Test objectives, apparatus and proceduresThese shall be as specified in ISO 22878:2004, 4.16.5.8.2 Test valuesThe test values shall be as listed in Table 14.Table 14Symbol Value DescriptionFmaxVariable Load capacityF9Fmaxper castorTest load (applied load, dependent on the number of castors fitted in the test rig)v350 mm/s Travel speed5.8.3 TolerancesThe tolerances shall be as shown in Table 15.Table 15Symbol UnitToleranc
