1、BSI Standards PublicationBS ISO 606:2015Short-pitch transmissionprecision roller and bushchains, attachments andassociated chain sprocketsBS ISO 606:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 606:2015. The UK participation in its preparation was entru
2、sted to TechnicalCommittee MCE/1, Chains and chain sprockets for power transmission.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
3、 correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 82025 0 ICS 21.220.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy a
4、nd Strategy Committee on 31 August 2015.Amendments/corrigenda issued since publicationDate Text affectedBS ISO 606:2015 ISO 2015Short-pitch transmission precision roller and bush chains, attachments and associated chain sprocketsChanes de transmission de prcision rouleaux et douilles, plaques-attach
5、es et roues dentes correspondantesINTERNATIONAL STANDARDISO606Fourth edition2015-08-15Reference numberISO 606:2015(E)BS ISO 606:2015ISO 606:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of
6、 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 address below or ISOs member body i
7、n 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 606:2015ISO 606:2015(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Chains . 23.1 Nomenclature
8、of assemblies and components 23.2 Designation 43.3 Dimensions . 43.4 Performance requirements 63.4.1 General 63.4.2 Tensile testing 73.4.3 Preloading 73.4.4 Length validation . 73.4.5 Dynamic testing 73.5 Marking . 83.6 Cranked links 84 Attachments .124.1 Nomenclature 124.2 General 134.3 Designation
9、 . 134.4 Dimensions 144.5 Manufacture . 144.6 Marking 145 Chain sprockets.165.1 General 165.2 Nomenclature 165.3 Diametral dimensions of sprocket rim 195.3.1 Nomenclature 195.3.2 Dimensions 195.4 Sprocket tooth gap forms 205.4.1 Nomenclature 205.4.2 Dimensions 205.5 Tooth heights and tip diameters .
10、 215.5.1 Nomenclature 215.5.2 Dimensions 215.6 Sprocket rim profiles 225.6.1 Nomenclature 225.6.2 Dimensions 225.7 Radial run-out . 225.8 Axial run-out (wobble) . 235.9 Pitch accuracy of sprocket teeth . 235.10 Number of teeth 235.11 Bore tolerance. 235.12 Marking 23Annex A (normative) Pitch circle
11、diameters .24Annex B (informative) Equivalent chain designations26Annex C (informative) Method of calculating chain minimum dynamic strength .27Annex D (informative) Method of determining maximum test force Fmaxwhen conducting dynamic strength conformance test 30Annex E (informative) Examples of met
12、hods used to avoid an excessive increase in the rate ISO 2015 All rights reserved iiiContents PageBS ISO 606:2015ISO 606:2015(E)of stress during the tensile test 31Annex F (informative) Methods used to approximate the minimum dynamic test values for multiplex chains .34Bibliography .35iv ISO 2015 Al
13、l rights reservedBS ISO 606:2015ISO 606:2015(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 out through ISO technical committees. Each mem
14、ber 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 collaborates closely with the International El
15、ectrotechnical 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 approval criteria needed for the different types
16、 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 the subject of patent rights. ISO shall not be he
17、ld 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).Any trade name used in this document is informatio
18、n 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 WTO principles in the Technical Barriers to Trade (TBT) see the fol
19、lowing URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 100, Chains and chain sprockets for power transmission and conveyors.This fourth edition cancels and replaces the third edition (ISO 606:2004), which has been technically revised. It also incorporat
20、es Technical Corrigendum ISO 606:2004/Cor. 1:2006. ISO 2015 All rights reserved vBS ISO 606:2015ISO 606:2015(E)IntroductionThe provisions of this revised International Standard have been established by including sizes of chains used by the majority of countries in the world, and by unifying dimensio
21、ns, strengths and other data which differed in current national standards, while eliminating those for which it was considered a universal usage had not been established.The whole field of application open to this medium of transmission has been covered by the ranges of chains already established. T
22、o achieve this, the sizes of 6,35 mm pitch to 76,2 mm pitch inclusive have been duplicated, on the one hand, by the inclusion of chains derived from standards originating and centred around ANSI, and on the other by chains representing the unification of the principal standards originating in Europe
23、, the two being complementary for the coverage of the widest possible field of application.The ANSI chain reference numbers (25, 35, 40, 50, etc.) are used world-wide and these numbers have now been introduced into this International Standard in place of the previous ISO reference numbers (04C, 06C,
24、 08A, 10A, etc.) To assist in cross-referencing the ANSI and previous ISO numbers, details are included in Annex B of this International Standard.The ANSI heavy series of chains (suffix H) are specified in this International Standard. The ANSI heavy series of chains differs from the ANSI standard se
25、ries in that thicker plates are used.The ANSI extra heavy series of chains (suffix HE) are now included. The ANSI extra heavy series are dimensionally as the ANSI heavy series (suffix H) but have a higher minimum ultimate tensile strength.Clause 4 covers specification details for K and M attachments
26、, and extended pin attachments for use with short-pitch transmission roller and bush chains conforming with this International Standard.Clause 5, covering chain sprockets, represents the unification of all the relevant national standards in the world and includes, in particular, complete tolerances
27、relating to tooth form.The inclusion of the dimensions of the chains specified ensures complete interchangeability of any given size and provides interchangeability of individual links of chains.vi ISO 2015 All rights reservedBS ISO 606:2015Short-pitch transmission precision roller and bush chains,
28、attachments and associated chain sprockets1 ScopeThis International Standard specifies the characteristics of short-pitch precision roller and bush chains with associated sprockets suitable for the mechanical transmission of power and allied applications. It covers dimensions, tolerances, length mea
29、surement, preloading, minimum tensile strengths and minimum dynamic strength.Although Clause 5 applies to chain sprockets for cycles and motor cycles, this International Standard is not applicable to their chains, which are covered by ISO 9633 and ISO 10190, respectively.2 Normative referencesThe fo
30、llowing documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 286-2:2010
31、, 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 15654, Fatigue test method for transmission precision roller chainsINTERNATIONAL STANDARD ISO 606:2015(E) ISO 2015 All r
32、ights reserved 1BS ISO 606:2015ISO 606:2015(E)3 Chains3.1 Nomenclature of assemblies and componentsThe nomenclature of chain assemblies and their component parts is shown in Figures 1 and 2 (which do not define the actual form of the chain plates).a) Simplex chain b) Duplex chainc) Triplex chainFigu
33、re 1 Types of roller chain assembly2 ISO 2015 All rights reservedBS ISO 606:2015ISO 606:2015(E)a) Inner linkKey for a)1 bush2 inner plate3 rollerb) Outer links for rivetingKey for b)1 outer plate2 bearing pins3 intermediate plate(s)c) Detachable connecting linksKey for c)1 spring clip fastener 4 det
34、achable plate2 fixed connecting pin 5 cotter pin fastener3 outer plate ISO 2015 All rights reserved 3BS ISO 606:2015ISO 606:2015(E)d) Cranked linksKey for d)1 cranked plate 5 cotter pin fastener2 bush 6 inner plate3 roller 7 bearing pin, riveted4 detachable connecting pin NOTE 1 The plate dimensions
35、 are specified in Tables 1 and 2.NOTE 2 Fasteners can be of various designs. Drawings indicate examples.Figure 2 Types of link3.2 DesignationChains are designated by the standard ISO chain number given in Tables 1 and 2. The ISO chain numbers in Table 1 are supplemented by a hyphenated suffix 1 for
36、simplex chain, 2 for duplex chain and 3 for triplex chain, for example, 16B-1, 16B-2, 16B-3, 80-1, 80-2, 80-3. Chains 081, 083, 084 and 41 do not follow this procedure since they are normally available in simplex form only.The chains designated in Table 2 are the ANSI heavy and extra heavy series, w
37、hich are also supplemented by a hyphenated suffix 1 for simplex chain, 2 for duplex chain and 3 for triplex chain, for example, 80H-1, 80H-2, 80H-3, 80HE-1, 80HE-2, 80HE-3.3.3 DimensionsChains shall conform to the dimensions shown in Figure 3 and given in Tables 1 and 2. Maximum and minimum dimensio
38、ns are specified to ensure interchangeability of links produced by different makers of chain. They represent limits for interchangeability, but are not the manufacturing tolerances.4 ISO 2015 All rights reservedBS ISO 606:2015ISO 606:2015(E)a) Cranked linkKey for a)c clearance between cranked link p
39、lates and straight plates available during articulationp pitch1 outer plate2 cranked plate3 inner plateb) Sections through chainKey for b)aChain path depth is the minimum depth of channel through which the assembled chain will pass ISO 2015 All rights reserved 5BS ISO 606:2015ISO 606:2015(E)Simplex
40、chain Duplex chain Triplex chainc) Types of chainNOTE For the symbols, see Table 1.Figure 3 ChainsThe overall width of a simplex, duplex or triplex chain with a joint fastener is given bya) for riveted pin end chains if the fastener is on one side only:(b4+ b7) or (b5+ b7) or (b6+ b7);b) for riveted
41、 pin end chains if the fastener is on two sides:b4+ (2b7) or b5+ (2b7) or b6+ (2b7);c) for headed pin end chains if the fastener is on one side only:b4+ (1,6b7) or b5+ (1,6b7) or b6+ (1,6b7);d) for headed pin end chains if the fastener is on two sides:b4+ (3,2b7) or b5+ (3,2b7) or b6+ (3,2b7).The ov
42、erall width of chains wider than triplex is given byb4+ pt (number of strands in chain 1).3.4 Performance requirements3.4.1 GeneralWARNING The test requirements are not to be taken as working loads. These loads could be selected, indirectly, using ISO 10823. The test results shall be invalid if the
43、chain has previously been in service or stressed in any way (other than by preloading in accordance with 3.4.3).The tests given in 3.4.2 to 3.4.5 shall only be performed on unused, undamaged chains to determine whether the subject chain complies with the minimum requirements specified in Tables 1 an
44、d 2.6 ISO 2015 All rights reservedBS ISO 606:2015ISO 606:2015(E)3.4.2 Tensile testing3.4.2.1 The minimum tensile strength is that value which shall be exceeded when a tensile force is applied to a sample tested to destruction in accordance with 3.4.2.2NOTE This minimum tensile strength is not a work
45、ing load, but is intended primarily as a comparative figure between chains of various constructions.3.4.2.2 Apply a tensile force slowly to the ends of a chain length containing at least five free pitches by means of fixtures permitting free movement on both sides of the chain centreline, in the nor
46、mal plane of articulation. Annex E (informative) describes methods to consider using in order to avoid an excessive increase in the rate of stress being applied to the chain during the tensile test.Failure shall be considered to have occurred at the first point where increasing extension is no longe
47、r accompanied by increasing force, i.e. the summit of the force/extension diagram. The force at this point shall exceed the minimum tensile strength stated in Tables 1 and 2.Tests in which failures occur adjacent to the shackles shall be disregarded.3.4.2.3 The tensile test shall be considered as a
48、destructive test. Even though a chain might not visibly fail when subjected to a force equivalent to the minimum tensile strength, it will have been stressed beyond the yield point and will be unfit for service.3.4.2.4 These requirements do not apply to cranked links, connecting links or chains with
49、 attachments, as their tensile strength could be reduced.3.4.3 PreloadingChains manufactured in conformance with this International Standard shall be preloaded by applying a minimum tensile force equivalent to 30 % of the minimum tensile strength given in Tables 1 and 2.3.4.4 Length validationMeasurement of chains shall take place after preloading but before lubrication.The standard length for measurement shall be a minimum ofa) 610 mm for ISO chain numbers 25 to 12B and 081 to 41 inclusive, orb) 1 220
