1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationFluid power systems O-ringsg51g68g85g87g3g20g29g3g44g81g86g76g71g72g3g71g76g68g80g72g87g72g85g86g15g3g70g85g82g86g86g16g86g72g70g87g76g82g81g86g15g3g87g82g79g72g85g68g81g70g72g86
2、g3g68g81g71g3g71g72g86g76g74g81g68g87g76g82g81g3g70g82g71g72g86BS ISO 3601-1:2012Incorporating corrigendum July 2012The UK participation in its preparation was entrusted to Technical CommitteeMCE/11, Fluid seals and their housings.A list of organizations represented on this committee can be obtained
3、 onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.ICS 23.100.60; 83.140.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was publ
4、ished under the authority of the StandardsPolicy and Strategy Committee on 30 April 2012.BS ISO 3601-1:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 3601-1:2012, incorporating corrigendum July 2012. It supersedes BS ISO 3601-1:2008 which is withdrawn.The
5、 start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by ISO corrigendum July 2012 is indicated in the text by g67g68. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 80163 1Amendments/corrigenda is
6、sued since publicationDate Text affected31 October 2012 Implementation of ISO corrigendum July 2012Reference numberISO 3601-1:2012(E)ISO 2012INTERNATIONAL STANDARD ISO3601-1Fifth edition2012-03-01Fluid power systems O-rings Part 1: Inside diameters, cross-sections, tolerances and designation codes T
7、ransmissions hydrauliques et pneumatiques Joints toriques Partie 1: Diamtres intrieurs, sections, tolrances et codes didentification dimensionnelle ISO 3601-1:2012(E) COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
8、or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 g120 CH-1211 Geneva 20 Tel. + 41 22 74
9、9 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2012 All rights reservedBS ISO 3601-1:20121BS ISO 3601-1:2012ISO 3601-1:2012(E)ISO 3601-1:2012(E) ISO 2012 All rights reserved iiiContents Page Foreword ivg3Introduction . vg31g3 Scope 1g32g3 Normat
10、ive references 1g33g3 Terms and definitions . 1g34g3 Symbols 1g35g3 Configuration . 2g36g3 Inside diameters, d1, cross-sections (section diameter), d2, and tolerances 2g37g3 Designation codes . 3g38g3 Methods of measuring for receiving inspection 4g39g3 Identification statement (reference to this pa
11、rt of ISO 3601) . 4g3Annex A (normative) Recommended inside diameter tolerances and cross-section tolerances for non-standard (custom) O-ring values . 31g3Annex B (informative) Example method of measuring for receiving inspection . 34g3Bibliography 36g3BS ISO 3601-1:20121BS ISO 3601-1:2012ISO 3601-1
12、:2012(E)ISO 3601-1:2012(E) iv ISO 2012 All rights reservedForeword ISO (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 committe
13、es. 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 collaborates closely with the Inte
14、rnational Electrotechnical Commission (IEC) 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 S
15、tandards adopted by the technical committees 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 su
16、bject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3601-1 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 7, Sealing devices. This fifth edition cancels and replaces the fourth edition (ISO 3601-1:2008), w
17、hich has been technically revised. It also incorporates the Technical Corrigenda ISO 3601-1:2008/Cor 1:2009 and ISO 3601-1:2008/Cor 2:2009. ISO 3601 consists of the following parts, under the general title Fluid power systems O-rings: g127 Part 1: Inside diameters, cross-sections, tolerances and des
18、ignation codes g127 Part 2: Housing dimensions for general applications g127 Part 3: Quality acceptance criteria g127 Part 4: Anti-extrusion rings (back-up rings) g127 Part 5: Suitability of elastomeric materials for industrial applications BS ISO 3601-1:20121BS ISO 3601-1:2012ISO 3601-1:2012(E)ISO
19、3601-1:2012(E) ISO 2012 All rights reserved vIntroduction In fluid power systems, power is transmitted and controlled through a fluid (liquid or gas) under pressure within an enclosed circuit. To avoid leakage or to seal different chambers of a component from each other, sealing devices are used. O-
20、rings are one type of sealing device. BS ISO 3601-1:20121BS ISO 3601-1:2012ISO 3601-1:2012(E)INTERNATIONAL STANDARD ISO 3601-1:2012(E) ISO 2012 All rights reserved 1Fluid power systems O-rings Part 1: Inside diameters, cross-sections, tolerances and designation codes 1 Scope This part of ISO 3601 sp
21、ecifies the inside diameters, cross-sections, tolerances and designation codes for O-rings used in fluid power systems for general industrial and aerospace applications. The dimensions and tolerances specified in this part of ISO 3601 are suitable for any elastomeric material, provided that suitable
22、 tooling is available. NOTE The tooling most commonly available is based on 70 IRHD NBR shrinkage rates (see ISO 48). For materials that shrink differently from this standard NBR compound, a special mould can be required to maintain the mean diameters and the tolerance limits listed. 2 Normative ref
23、erences The following referenced documents are indispensable for the application 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 48, Rubber, vulcanized or thermoplast
24、ic Determination of hardness (hardness between 10 IRHD and 100 IRHD) ISO 3601-3, Fluid power systems O-rings Part 3: Quality acceptance criteria ISO 5598, Fluid power systems and components Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5
25、598 apply. 4 Symbols The following symbols are used in this part of ISO 3601: g127 d1O-ring inside diameter; g127 d2O-ring cross-section diameter. BS ISO 3601-1:20121BS ISO 3601-1:2012ISO 3601-1:2012(E) 2 ISO 2012 All rights reserved5 Configuration The shape of the O-ring shall be toroidal, as shown
26、 in Figure 1. Figure 1 Typical O-ring configuration 6 Inside diameters, d1, cross-sections (section diameter), d2, and tolerances 6.1 The combinations of inside diameters and cross-section diameters shall be chosen depending on the application: g127 from Tables 1 through 6 for general industrial app
27、lications; g127 from Tables 7 through 11 for aerospace applications. 6.2 For industrial applications, two classes of inside diameter tolerances, class A and class B, are specified. The tolerance of class B O-rings is based on Equation (A.1). Class A O-rings have tighter inside diameter tolerances th
28、an class B O-rings and are suitable for industrial or aerospace applications when the application or the housing require tighter tolerances. Class B O-rings have dimensions and tolerances suitable for general-purpose applications. The inside diameter tolerances are based on Equation (A.1). For infor
29、mation, Figure 2 shows a graphical comparison of the inside-diameter tolerances for class A and class B O-rings. 6.3 Cross-section tolerances for non-standard (custom) O-rings for general industrial applications not listed in Tables 1 through 6 can be chosen from Table A.1. Tolerances for inside dia
30、meters for non-standard (custom) class A O-rings are listed in Table A.2. Equation (A.1) can be used to calculate inside diameter tolerances for non-standard (custom) class B O-rings. In marginal cases, the compliance with the limits of the shape deviations and surface imperfections should be consid
31、ered besides the dimensional tolerances. See ISO 3601-3. BS ISO 3601-1:20121BS ISO 3601-1:2012ISO 3601-1:2012(E)ISO 3601-1:2012(E) ISO 2012 All rights reserved 3Key X O-ring inside diameter, d1, expressed in millimetres Y g114 tolerances, expressed in millimetres 1 class A tolerance 2 class B tolera
32、nce Figure 2 Graphical comparison of inside diameter tolerances for class A and class B O-rings 7 Designation codes 7.1 O-rings for general industrial applications that conform to this part of ISO 3601 shall be designated as follows: a) the word “O-ring” followed by a hyphen; b) “ISO3601-1” followed
33、 by a hyphen; c) the size code from the relevant table (see Tables 1 through 6) and “A” or “B” for the inside diameter tolerance class, followed by a hyphen; d) the nominal inside diameter and cross-section dimensions, separated by an “g117” and followed by a hyphen; BS ISO 3601-1:20121BS ISO 3601-1
34、:2012ISO 3601-1:2012(E)ISO 3601-1:2012(E) 4 ISO 2012 All rights reservede) the grade letter (N, S or CS), in accordance with ISO 3601-3. EXAMPLE 1 O-ring-ISO3601-1-011A-7,65g1171,78-S EXAMPLE 2 O-ring-ISO3601-1-125B-32,99g1172,62-N 7.2 O-rings for aerospace applications that conform to this part of
35、ISO 3601 shall be designated as follows: a) the word “O-ring” followed by a hyphen; b) “ISO3601-1” followed by the letter “A” (to designate an aerospace application), followed by a hyphen; c) the size code from the relevant table (see Tables 7 through 11), followed by a hyphen; d) the nominal inside
36、 diameter and cross-section dimensions, separated by an “g117” and followed by a hyphen; e) the grade letter (N, S or CS), in accordance with ISO 3601-3. EXAMPLE 1 O-ring-ISO3601-1A-C0545-54,5g1173,55-S EXAMPLE 2 O-ring-ISO3601-1A-D1250-125g1175,3-CS 8 Methods of measuring for receiving inspection W
37、hen it is necessary to inspect O-rings that conform to this part of ISO 3601 at the time of customer receipt, the inspection procedure shall be agreed upon by the supplier and purchaser at the time of order. Annex B provides possible methods for such a procedure for information. 9 Identification sta
38、tement (reference to this part of ISO 3601) Manufacturers are strongly recommended to use the following statement in test reports, catalogues and sales literature when electing to comply with this part of ISO 3601: “O-ring inside diameters, cross-sections, tolerances and designation code are in acco
39、rdance with ISO 3601-1:2011, Fluid power systems O-rings Part 1: Inside diameters, cross-sections, tolerances and designation codes.” Table 1 Size code, size, inside diameter and inside diameter tolerances of class A and class B O-rings for general industrial applications Cross-section diameter, d2,
40、 of 1,02 mm, 1,27 mm and 1,52 mm Size code Size Inside diameter Cross-section diameter Volume ref. d1nom. mm Tolerance mm d1nom. in Tolerance in d2nom.mm Tol. d2nom. in Tol. Class A Class B Class A Class B cm3in3001 0,74 g117 1,02 0,74 g114 0,10 g114 0,12 0,029g114 0,004 g114 0,0051,02g114 0,080,040
41、 g114 0,003 0,005 0,000 3002 1,07 g117 1,27 1,07 0,042 1,27 0,050 0,010 0,000 6003 1,42 g117 1,52 1,42 0,056 1,52 0,060 0,016 0,001 0BS ISO 3601-1:20121BS ISO 3601-1:2012ISO 3601-1:2012(E)ISO 3601-1:2012(E) ISO 2012 All rights reserved 5Table 2 Size code, size, inside diameter and inside diameter to
42、lerances of class A and class B O-rings for general industrial applications Cross-section diameter, d2, of 1,78 mm g114 0,08 mm (0,070 in g114 0,003 in) Size code Size Inside diameter Volume ref. d1nom. mm Tolerance mm d1nom. in Tolerance in Class A Class B Class A Class B cm3in3004 1,78 g117 1,78 1
43、,78 g114 0,13 g114 0,13 0,070g114 0,005 g114 0,005 0,028 0,001 7 005 2,57 g117 1,78 2,57 0,101 0,034 0,002 1006 2,90 g117 1,78 2,90 0,114 0,036 0,002 2 007 3,68 g117 1,78 3,68 g114 0,14 0,145g114 0,006 0,043 0,002 6 008 4,47 g117 1,78 4,47 g114 0,15 0,176 0,049 0,003 0 009 5,28 g117 1,78 5,28 0,208
44、0,056 0,003 4010 6,07 g117 1,78 6,07 g114 0,16 0,239 0,061 0,003 7 011 7,65 g117 1,78 7,65 g114 0,17 0,301g114 0,007 0,074 0,004 5 012 9,25 g117 1,78 9,25 g114 0,18 0,364 0,085 0,005 2 013 10,82 g117 1,78 10,82 g114 0,20 0,426g114 0,008 0,098 0,006 0 014 12,42 g117 1,78 12,42 g114 0,21 0,489 0,111 0
45、,006 8 015 14,00 g117 1,78 14,00 g114 0,18 g114 0,22 0,551 g114 0,007 g114 0,009 0,123 0,007 5 016 15,60 g117 1,78 15,60 g114 0,23 g114 0,23 0,614g114 0,009 0,136 0,008 3 017 17,17 g117 1,78 17,17 g114 0,24 0,676g114 0,010 0,147 0,009 0 018 18,77 g117 1,78 18,77 g114 0,26 0,739 0,161 0,009 8 019 20,
46、35 g117 1,78 20,35 g114 0,27 0,801g114 0,011 0,172 0,010 5 020 21,95 g117 1,78 21,95 g114 0,28 0,864 0,185 0,011 3 021 23,52 g117 1,78 23,52 g114 0,29 0,926 0,197 0,012 0 022 25,12 g117 1,78 25,12 g114 0,25 g114 0,30 0,989g114 0,010 g114 0,012 0,210 0,012 8 023 26,70 g117 1,78 26,70 g114 0,31 1,051
47、0,223 0,013 6 024 28,30 g117 1,78 28,30 g114 0,33 1,114g114 0,013 0,234 0,014 3 025 29,87 g117 1,78 29,87 g114 0,28 g114 0,34 1,176g114 0,011 0,247 0,015 1 026 31,47 g117 1,78 31,47 g114 0,35 1,239g114 0,014 0,259 0,015 8 027 33,05 g117 1,78 33,05 g114 0,36 1,301 0,272 0,016 6 028 34,65 g117 1,78 34
48、,65 g114 0,33 g114 0,37 1,364g114 0,013 g114 0,015 0,283 0,017 3 029 37,82 g117 1,78 37,82 g114 0,39 1,489g114 0,016 0,308 0,018 8 030 41,00 g117 1,78 41,00 g114 0,42 1,614 0,334 0,020 4 031 44,17 g117 1,78 44,17 g114 0,38 g114 0,44 1,739g114 0,015 g114 0,017 0,359 0,021 9 032 47,35 g117 1,78 47,35
49、g114 0,46 1,864 g114 0,018 0,383 0,023 4 BS ISO 3601-1:20121BS ISO 3601-1:2012ISO 3601-1:2012(E)ISO 3601-1:2012(E) 6 ISO 2012 All rights reservedTable 2 (continued)Size code Size Inside diameter Volume ref. d1nom. mm Tolerance mm d1nom. in Tolerance in Class A Class B Class A Class B cm3in3033 50,52 g117 1,78 50,52 g114 0,46 g114 0,48 1,989g114 0,018 g114 0,019 0,408 0,024 9 034 53,70 g117 1,78 53,70 g114 0,51 2,114 g114 0,020 0,433 0,026 4 035 56,87 g117 1,78 56,87 g114 0,53 2,239 g114 0,021 0,457 0,027
