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1、BRITISH STANDARD BS ISO 16589-1:2001 Rotary shaft lip-type seals incorporating thermoplastic sealing elements Part 1: Nominal dimensions and tolerances ICS 23.040.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24
2、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 16589-1:2001 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 21 March 2002 BSI 21 March 2002
3、 ISBN 0 580 39239 2 National foreword This British Standard reproduces verbatim ISO 16589-1:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee MCE/11, Fluid seals and their housings, which has the responsibility to: A list
4、 of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Internationa
5、l Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British
6、 Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European d
7、evelopments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 13 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Am
8、endments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 16589-1:2001(E) INTERNATIONAL STANDARD ISO 16589-1 First edition 2001-12-15 Rotary shaft lip-type seals incorporatin
9、g thermoplastic sealing elements Part 1: Nominal dimensions and tolerances Bagues dtanchit lvres pour arbres tournants incorporant des lments dtanchit thermoplastiques Partie 1: Dimensions nominales et tolrances Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontro
10、lled Copy, (c) BSI ISO 16589-1:2001(E) ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 16589-1:2001(E) iii Contents Page Foreword.iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Seal types and examples2
11、 4.1 Seal outside diameter construction.2 4.2 Sealing lip arrangements2 5 Letter symbols .3 6 Nominal dimensions3 7 Shafts4 7.1 Shaft ends 4 7.2 Diametral tolerance .5 7.3 Surface roughness and hardness5 8 Housings 6 8.1 General6 8.2 Dimensions 6 8.3 Housing bore tolerance.7 8.4 Housing bore surface
12、 roughness 7 9 Seal tolerances 7 10 Size identification code.8 11 Identification statement (Reference to this part of ISO 16589)9 Annex A (informative) Seal specification10 Bibliography13 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 1
13、6589-1:2001(E) iv Foreword 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 committees. Each member body interested in a sub
14、ject 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 (I
15、EC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical commit
16、tees 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 part of ISO 16589 may be the subject of patent rights. ISO sha
17、ll not be held responsible for identifying any or all such patent rights. ISO 16589-1 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 7, Sealing devices. ISO 16589 consists of the following parts, under the general title Rotary shaft lip-type seals incorporating
18、thermoplastic sealing elements: Part 1: Nominal dimensions and tolerances Part 2: Vocabulary Part 3: Storage, handling and installation Part 4: Performance test procedures Part 5: Identification of visual imperfections Annex A of this part of ISO 16589 is for information only. Licensed Copy: sheffie
19、ldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 16589-1:2001(E) v Introduction Rotary shaft lip-type seals are used to retain fluid in equipment where the differential pressure is relatively low. Typically, the shaft rotates and the housing is stationary, alt
20、hough in some applications the shaft is stationary and the housing rotates. Dynamic sealing is normally the result of a designed interference fit between the shaft and a flexible element incorporated in the seal. Similarly, a designed interference fit between the outside diameter of the seal and the
21、 diameter of the housing bore retains the seal and prevents static leakage. Careful storage, handling and proper installation of all seals are necessary to avoid hazards, both prior to and during installation, which would adversely affect service life. Licensed Copy: sheffieldun sheffieldun, na, Sun
22、 Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 16589-1:2001(E) 1 Rotary shaft lip-type seals incorporating thermoplastic sealing elements Part 1: Nominal
23、 dimensions and tolerances 1 Scope ISO 16589 describes seals utilizing sealing elements manufactured from suitably formulated compounds, based on thermoplastic materials, such as polytetrafluoroethylene (PTFE). NOTE ISO 16589 is complementary to ISO 6194 which covers elastomeric seals. This part of
24、ISO 16589 specifies the nominal dimensions and tolerances of the seals, shafts and housings, as well as a dimensional identification code. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 1658
25、9. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 16589 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Fo
26、r undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 286-2:1988, ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and s
27、hafts ISO 4287:1997, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters ISO 4288:1996, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture ISO 5598:
28、1985, Fluid power systems and components Vocabulary ISO 16589-2:2001, Rotary shaft lip-type seals incorporating thermoplastic sealing elements Part 2: Vocabulary 3 Terms and definitions For the purposes of this part of ISO 16589, the terms and definitions given in ISO 5598 and ISO 16589-2 apply. Lic
29、ensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 16589-1:2001(E) 2 4 Seal types and examples 4.1 Seal outside diameter construction The constructions shown in Figure 1 show three basic types. NOTE Because of some variations in design details
30、, or seals made by different manufacturers, the constructions shown are intended only as representative of the basic types. Type 1 Type 2 Type 3 Metal-cased Semi-rubber-covered metal-cased Rubber-covered metal-cased Figure 1 Three basic types of outside diameter construction 4.2 Sealing lip arrangem
31、ents Some examples of sealing lip arrangements are shown in Figure 2. Example 1 Example 2 Example 3 Single lip Double lip in tandem Single lip with thermoplastic minor lip Figure 2 Sealing lip arrangements The sealing lip arrangements shown in Figure 2 can be used with each seal outside diameter con
32、struction shown in Figure 1. Hydrodynamic aids are incorporated by some manufacturers in certain applications. The design of the sealing lip should be agreed on between manufacturer and purchaser. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c)
33、BSI ISO 16589-1:2001(E) 3 5 Letter symbols Letter symbols used in this part of ISO 16589 are as follows: b is the nominal width of the seal and is associated with the housing bore depth (see Figure 3); d1 is the nominal diameter of the shaft to be used with the seal (see Figure 4); d2 is the minor d
34、iameter at the shaft lead-in chamfer (see Figure 4); D is the nominal diameter of the housing bore and of the outer diameter of the seal (see Figures 3 and 5). 6 Nominal dimensions The nominal dimensions of the seals are shown in Figure 3 and given in Table 1: Key 1 Inner case 2 Outer case 3 Gasket
35、(if incorporated) 4 Sealing element a Rotation viewed from back face b Identification (preferred location) on back side Figure 3 Seal Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 16589-1:2001(E) 4 Table 1 Nominal dimensions Dimensions
36、 in millimetres d1 D ba d1 D ba d1 D ba d1 D ba 6 16 7 25 52 7 45 65 8 120 150 12 6 22 7 28 40 7 50 65 8 130 160 12 7 22 7 28 47 7 50 72 8 140 170 15 8 22 7 28 52 7 55 72 8 150 180 15 8 24 7 30 42 7 55 80 8 160 190 15 9 22 7 30 47 7 60 80 8 170 200 15 10 22 7 30 52 7 60 85 8 180 210 15 10 25 7 32 45
37、 8 65 85 10 190 220 15 12 24 7 32 47 8 65 90 10 200 230 15 12 25 7 32 52 8 70 90 10 220 250 15 12 30 7 35 50 8 70 95 10 240 270 20 15 26 7 35 52 8 75 95 10 260 300 20 15 30 7 35 55 8 75 100 10 280 320 20 15 35 7 38 55 8 80 100 10 300 340 20 16 30 7 38 58 8 80 110 10 320 360 20 18 30 7 38 62 8 85 110
38、 12 340 380 20 18 35 7 40 55 8 85 120 12 360 400 20 20 35 7 40 62 8 90 120 12 380 420 20 20 40 7 42 55 8 95 120 12 400 440 20 22 35 7 42 62 8 100 125 12 450 500 25 22 40 7 45 62 8 110 140 12 480 530 25 22 47 7 25 40 7 25 47 7 a The width b may be increased to permit the use of more complex seal conf
39、igurations. 7 Shafts 7.1 Shaft ends The end of the shaft shall be provided with a lead-in chamfer as shown in Figure 4 and given in Table 2, and shall be free from burrs, sharp corners or rough machining marks. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrol
40、led Copy, (c) BSI ISO 16589-1:2001(E) 5 Figure 4 Shaft lead-in chamfer Table 2 Shaft lead-in chamfer Dimensions in millimetres Shaft diameter Shaft diameter d1 d1 d2a d1 d1 d2a min. min. d1 u 10 1,5 50 10 b + 1,5 1 to 1,3 0,75 8.3 Housing bore tolerance The housing bore shall have a diamentral toler
41、ance not greater than H8 (see ISO 286-2). 8.4 Housing bore surface roughness The surface roughness of the housing bore shall be within Ra 1,6 m and Ra 3,2 m, or between Rz 6,3 m and Rz 12,5 m, measured in the axial direction in accordance with ISO 4287 and ISO 4288. 9 Seal tolerances 9.1 The recomme
42、nded seal width tolerances are given in Table 4. Table 4 Seal width tolerances Dimensions in millimetres Seal width b Tolerance b u 10 0,3 10 b u 14 0,4 14 b u 18 0,5 18 b u 25 0,6 9.2 To provide an interference fit between the seal outside surface and the housing bore surface, the recommended toler
43、ances for the outside diameter of the seal shall be as given in Table 5. NOTE Since the interference between the seal outside surface and the housing bore surface is a characteristic related to the design of the seal, it may be necessary for agreement to be reached between purchaser and manufacturer
44、 on the limits to be used. See annex A for the recommended form. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 16589-1:2001(E) 8 Table 5 Seal outside diameter tolerances Dimensions in millimetres Nominal outside diameter Diametral tole
45、rance Roundness tolerance a D Metal-cased Rubber-covered b, c Metal-cased Rubber-covered + 0,20 + 0,30 D u 50 + 0,08 + 0,15 0,18 0,25 + 0,23 + 0,35 50 D u 80 + 0,09 + 0,20 0,25 0,35 + 0,25 + 0,35 80 D u 120 + 0,10 + 0,20 0,3 0,5 + 0,28 + 0,45 120 D u 180 + 0,12 + 0,25 0,4 0,65 + 0,35 + 0,45 0,25 % 1
46、80 D u 300 + 0,15 + 0,25 of outside diameter 0,8 + 0,45 + 0,55 0,25 % 1 300 D u 530 + 0,20 + 0,30 of outside diameter a The roundness tolerance is equal to the difference between the maximum diameter and the minimum diameter derived from three or more equally spaced measurements. b Rubber-covered an
47、d semi-rubber-covered seals having a wave profile outside surface are acceptable but will require different tolerances to be agreed on between manufacturer and purchaser. c Rubber-covered and semi-rubber-covered seals employing certain materials other than nitrile may require different tolerances to
48、 be agreed on between manufacturer and purchaser. 10 Size identification code 10.1 The size identification code shall consist of the nominal dimensions of the shaft and housing, as given in Table 1. 10.2 Examples of size identification code are given in Table 6. Table 6 Size identification code Dime
49、nsions in millimetres d1 D Size code 6 16 006016 70 90 070090 400 440 400440 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 16589-1:2001(E) 9 11 Identification statement (Reference to this part of ISO 16589) 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 16589: “The nominal dimensions and tolerances of the seals,
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