1、BSI Standards PublicationBS ISO 1328-1:2013Cylindrical gears ISO systemof flank tolerance classificationPart 1: Definitions and allowable values ofdeviations relevant to flanks of gear teethBS ISO 1328-1:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 1328
2、-1:2013.The UK participation in its preparation was entrusted to Technical Committee MCE/5/-/2, Gear accuracy.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. Use
3、rs are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013ISBN 978 0 580 71815 1ICS 21.200Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of t
4、he Standards Policy and Strategy Committee on 30 September 2013.Amendments/corrigenda issued since publicationDate Text affectedBS ISO 1328-1:2013 ISO 2013Cylindrical gears ISO system of flank tolerance classification Part 1: Definitions and allowable values of deviations relevant to flanks of gear
5、teethEngrenages cylindriques Systme ISO de classification des tolrances sur flancs Partie 1: Dfinitions et valeurs admissibles des carts pour les flancs de la dentureINTERNATIONAL STANDARDISO1328-1Second edition2013-09-01Reference numberISO 1328-1:2013(E)BS ISO 1328-1:2013ISO 1328-1:2013(E)ii ISO 20
6、13 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All 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, wi
7、thout 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 officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in Swit
8、zerlandBS ISO 1328-1:2013ISO 1328-1:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 23 Terms, definitions and symbols 23.1 Fundamental terms and symbols 23.2 General dimensions 63.3 Pitch deviations 93.4 Profile deviations . 103.5 Helix
9、 deviations . 144 Application of the ISO flank tolerance classification system .174.1 General 174.2 Geometrical parameters to be verified . 174.3 Equipment verification and uncertainty . 194.4 Considerations for elemental measurements .194.5 Specification of gear flank tolerance requirements .244.6
10、Acceptance and evaluation criteria 254.7 Presentation of data 255 Tolerance values 255.1 General 255.2 Use of formulae 265.3 Tolerance formulae 26Annex A (normative) Zone-based tolerance evaluation 28Annex B (normative) Evaluation of profile and helix deviations using the second order analysis metho
11、d 32Annex C (informative) Profile and helix data filtering 35Annex D (informative) Sector pitch deviation .37Annex E (normative) Allowable values of runout 40Annex F (informative) Single flank composite testing 43Annex G (informative) Adjacent pitch difference, fu48Bibliography .50BS ISO 1328-1:2013
12、ISO 1328-1:2013(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 member body interested in a subj
13、ect 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 Electrotechnical Commission (IE
14、C) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committee
15、s are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.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 hel
16、d responsible for identifying any or all such patent rights.ISO 1328-1 was prepared by Technical Committee ISO/TC 60, Gears.This second edition cancels and replaces the first edition (ISO 1328-1:1995), which has been technically revised. In particular, the following are the major changes: the scope
17、of applicability has been expanded; revisions have been made to the formulae which define the flank tolerances; annexes have been added to describe additional methods for analysis of modified profiles and helices; the evaluation of runout, previously handled in ISO 1328-2, has been brought back into
18、 this part of ISO 1328.ISO 1328 consists of the following parts, under the general title Cylindrical gears ISO system of flank tolerance classification: Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth Part 2: Definitions and allowable values of deviations rele
19、vant to radial composite deviations and runout information1)1) It is intended that, upon revision, the main element of the title of Part 2 will be aligned with the main element of the title of Part 1.iv ISO 2013 All rights reservedBS ISO 1328-1:2013ISO 1328-1:2013(E)IntroductionISO 1328:1975 (third
20、edition, withdrawn) included definitions and allowable values of gear element deviations, along with advice on appropriate inspection methods.The first edition of this part of ISO 1328 retained the definitions and allowable values for gear flank deviations (single pitch, cumulative pitch, total cumu
21、lative pitch, total profile and total helix), while the advice on appropriate inspection methods was given in ISO/TR 10064-1 (listed in Clause 2). ISO 2013 All rights reserved vBS ISO 1328-1:2013BS ISO 1328-1:2013Cylindrical gears ISO system of flank tolerance classification Part 1: Definitions and
22、allowable values of deviations relevant to flanks of gear teethIMPORTANT It is strongly recommended that any user of this part of ISO 1328 be very familiar with the methods and procedures outlined in ISO/TR 10064-1. Use of techniques other than those of ISO/TR 10064-1 combined with the limits descri
23、bed in this part of ISO 1328 might not be suitable.CAUTION The use of the flank tolerance classes for the determination of gear performance requires extensive experience with specific applications. Users of this part of ISO 1328 are cautioned against the direct application of tolerance values for un
24、assembled (loose) gears to a projected performance of an assembly using these gears.1 ScopeThis part of ISO 1328 establishes a tolerance classification system relevant to manufacturing and conformity assessment of tooth flanks of individual cylindrical involute gears. It specifies definitions for ge
25、ar flank tolerance terms, the structure of the flank tolerance class system, and allowable values.This part of ISO 1328 provides the gear manufacturer and the gear buyer with a mutually advantageous reference for uniform tolerances. Eleven flank tolerance classes are defined, numbered 1 to 11, in or
26、der of increasing tolerance. Formulae for tolerances are provided in 5.3. These tolerances are applicable to the following ranges:5 z 1 000 5 mm d 15 000 mm 0,5 mm mn 70 mm 4 mm b 1 200 mm 45 whered is the reference diameter;mnis the normal module;b is the facewidth (axial);z is the number of teeth;
27、 is the helix angle.See Clause 4 for required and optional measuring methods.INTERNATIONAL STANDARD ISO 1328-1:2013(E) ISO 2013 All rights reserved 1BS ISO 1328-1:2013ISO 1328-1:2013(E)Gear design is beyond the scope of this part of ISO 1328.Surface texture is not considered in this part of ISO 1328
28、. For additional information on surface texture, see ISO/TR 10064-4.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable to its application. For dated references, only the edition cited applies. For undated references,
29、the latest edition of the referenced document (including any amendments) applies.ISO 701, International gear notation Symbols for geometrical dataISO 1122-1, Vocabulary of gear terms Part 1: Definitions related to geometryISO 1328-2, Cylindrical gears ISO system of accuracy Part 2: Definitions and a
30、llowable values of deviations relevant to radial composite deviations and runout informationISO/TR 10064-1, Code of inspection practice Part 1: Inspection of corresponding flanks of gear teethISO/TS 16610-1, Geometrical product specifications (GPS) Filtration Part 1: Overview and basic conceptsISO 1
31、6610-21, Geometrical product specifications (GPS) Filtration Part 21: Linear profile filters: Gaussian filtersISO 21771, Gears Cylindrical involute gears and gear pairs Concepts and geometry3 Terms, definitions and symbols3.1 Fundamental terms and symbolsFor the purposes of this part of ISO 1328, th
32、e following terms, definitions and symbols apply.NOTE 1 For other definitions of geometric terms related to gearing, see ISO 701, ISO 1122-1 and ISO 21771.NOTE 2 Some of the symbols and terminology contained in this part of ISO 1328 might differ from those used in other documents and International S
33、tandards.NOTE 3 The terminology and symbols used in this part of ISO 1328 are listed, in alphabetical order, by term in Table 1, and in alphabetical order, by symbol in Table 2. The text of terms used in Table 1 has been adjusted to form groups of logical terms. Subscript “T” is used for tolerance v
34、alues.Table 1 Terms, listed in alphabetical order, with symbolsTerm Symbol UnitActive tip diameter dNammActive tip diameter point on line of action NaAdjacent pitch difference fumAdjacent pitch difference tolerance fuTmAdjacent pitch difference, individual fuimAmount of root relief CfmAmount of tip
35、relief CamBase diameter dbmmContact pattern evaluation cpContact point tangent at base circle T 2 ISO 2013 All rights reservedBS ISO 1328-1:2013ISO 1328-1:2013(E)Term Symbol UnitCumulative pitch deviation (index deviation), individual FpimCumulative pitch deviation (index deviation), total FpmCumula
36、tive pitch (index) tolerance, total FpTmFacewidth (axial) b mmFlank tolerance class A Helix angle degHelix deviation, total FmHelix evaluation length LmmHelix form deviation ffmHelix form filter cutoff mmHelix form tolerance ffTmHelix slope deviation fHmHelix slope tolerance fHTmHelix tolerance, tot
37、al FTmIndividual radial measurement rimLength of path of contact gmmMaximum length of tip relief LCa,maxmmMaximum length of root relief LCf,maxmmMeasurement diameter dMmmMiddle profile zone LmMinimum length of tip relief LCa,minmmMinimum length of root relief LCf,minmmNormal module mnmmNumber of tee
38、th z Number of pitches in a sector k Pitch, transverse circular on measurement diameter ptMmmPitch point C Pitch span deviation FpSkmProfile control diameter dCfmmProfile deviation, total FmProfile evaluation length LmmProfile form deviation ffmProfile form filter cutoff mmProfile form tolerance ffT
39、mProfile slope deviation fHmProfile slope tolerance fHTmProfile tolerance, total FTmRadial composite deviation, tooth-to-toothafi” mRadial composite deviation, totalaFi” mTable 1 (continued) ISO 2013 All rights reserved 3BS ISO 1328-1:2013ISO 1328-1:2013(E)Term Symbol UnitReference diameter d mmRoot
40、 form diameter dFfmmRoot relief zone LCfRunout FrmSector pitch deviation FpkmSector pitch tolerance FpkTmSingle flank composite deviation, total FismSingle flank composite tolerance, total FisTmSingle flank composite deviation, tooth-to-tooth fismSingle flank composite tolerance, tooth-to-tooth fisT
41、mSingle pitch deviation fpmSingle pitch deviation (individual) fpimSingle pitch tolerance fpTmStart of active profile diameter dNfmmStart of active profile point on line of action NfTip corner chamfer hkmmTip diameter dammTip form diameter dFammTip relief zone LCaTooth thickness s mmWorking pitch di
42、ameter dwmmWorking transverse pressure angle wtdegaSymbols given in ISO 1328-2.Table 2 Symbols, listed in alphabetical order, with termsSymbol Term UnitA Flank tolerance class b Facewidth (axial) mmC Pitch point CaAmount of tip relief mCfAmount of root relief mcpContact pattern evaluation d Referenc
43、e diameter mmdaTip diameter mmdbBase diameter mmdCfProfile control diameter mmdFaTip form diameter mmdFfRoot form diameter mmdMMeasurement diameter mmTable 1 (continued)4 ISO 2013 All rights reservedBS ISO 1328-1:2013ISO 1328-1:2013(E)Symbol Term UnitdNaActive tip diameter mmdNfStart of active profi
44、le diameter mmdwWorking pitch diameter mmFi” Radial composite deviation, totalamFisSingle flank composite deviation, total mFisTSingle flank composite tolerance, total mFpCumulative pitch deviation (index deviation), total mFpiCumulative pitch deviation (index deviation), individual mFpkSector pitch
45、 deviation mFpkTSector pitch tolerance mFpTCumulative pitch (index) tolerance, total mFpSkPitch span deviation mFrRunout mFProfile deviation, total mFTProfile tolerance, total mFHelix deviation, total mFTHelix tolerance, total mffProfile form deviation mffTProfile form tolerance mffHelix form deviat
46、ion mffTHelix form tolerance mfHProfile slope deviation mfHTProfile slope tolerance mfHHelix slope deviation mfHTHelix slope tolerance mfi” Radial composite deviation, tooth-to-toothamfisSingle flank composite deviation, tooth-to-tooth mfisTSingle flank composite tolerance, tooth-to-tooth mfpSingle
47、pitch deviation mfpiSingle pitch deviation (individual) mfpTSingle pitch tolerance mfuAdjacent pitch difference mfuiAdjacent pitch difference, individual mfuTAdjacent pitch difference tolerance mgLength of path of contact mmhkTip corner chamfer mmk Number of pitches in a sector LmMiddle profile zone
48、 LCaTip relief zone Table 2 (continued) ISO 2013 All rights reserved 5BS ISO 1328-1:2013ISO 1328-1:2013(E)Symbol Term UnitLCfRoot relief zone Lca,maxMaximum length of tip relief mmLca,minMinimum length of tip relief mmLcf,maxMaximum length of root relief mmLcf,minMinimum length of root relief mmLPro
49、file evaluation length mmLHelix evaluation length mmmnNormal module mmNaActive tip diameter point on line of action NfStart of active profile point on line of action ptMPitch, transverse circular on measurement diameter mmriIndividual radial measurement ms Tooth thickness mmT Contact point at tangent at base circle z Number of teeth wtWorki
