ISO 16589-1-2011 Rotary shaft lip-type seals incorporating thermoplastic sealing elements - Part 1 Nominal dimensions and tolerances《带热塑密封件的旋转轴唇型密封 第1部分 标称尺寸与公差.pdf

1、 Reference number ISO 16589-1:2011(E) ISO 2011INTERNATIONAL STANDARD ISO 16589-1 Second edition 2011-04-15 Rotary shaft lip-type seals incorporating thermoplastic sealing elements Part 1: Nominal dimensions and tolerances Bagues dtanchit lvres pour arbres tournants incorporant des lments dtanchit th

2、ermoplastiques Partie 1: Dimensions nominales et tolrances ISO 16589-1:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopyin

3、g 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 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerlan

4、d ii ISO 2011 All rights reservedISO 16589-1:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Symbols1 5 Seal types and examples2 5.1 Seal outside diameter construction 2 5.2 Sealing lip arrangements2 6 Pre

5、ssure and nominal dimensions3 6.1 Pressure .3 6.2 Nominal dimensions .3 7 Shafts4 7.1 Shaft ends 4 7.2 Diametral tolerance .5 7.3 Surface roughness and hardness .5 7.3.1 Surface roughness5 7.3.2 Surface hardness 6 8 Housings6 8.1 Dimensions 6 8.2 Housing bore tolerance 7 8.3 Housing bore surface rou

6、ghness 7 9 Seal tolerances 7 9.1 Seal width.7 9.2 Seal outside diameter .7 10 Size identification code.8 11 Identification statement (Reference to this part of ISO 16589)9 Annex A (informative) Seal specification .10 Bibliography13 ISO 16589-1:2011(E) iv ISO 2011 All rights reservedForeword ISO (the

7、 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 subject for which a technical committe

8、e 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 (IEC) on all matters of electrotechni

9、cal 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 committees are circulated to the member b

10、odies 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 held responsible for identifying a

11、ny or all such patent rights. ISO 16589-1 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 7, Sealing devices. This second edition cancels and replaces the first edition (ISO 16589-1:2001), which has been technically revised. ISO 16589 consists of the following pa

12、rts, under the general title Rotary shaft lip-type seals incorporating 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 ISO 16589-

13、1:2011(E) ISO 2011 All rights reserved vIntroduction 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, although in some applications the shaft is stationary and the housing

14、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 diameter of the housing bore retains the seal and prevents static

15、leakage. Careful storage and handling and proper installation of all seals are necessary to avoid hazards, both prior to and during installation, which would adversely affect service life. INTERNATIONAL STANDARD ISO 16589-1:2011(E) ISO 2011 All rights reserved 1Rotary shaft lip-type seals incorporat

16、ing thermoplastic sealing elements Part 1: Nominal dimensions and tolerances 1 Scope ISO 16589 specifies seals utilizing sealing elements manufactured from suitably formulated compounds based on thermoplastic materials, such as polytetrafluoroethylene (PTFE). They are considered suitable for use und

17、er low pressure conditions. This part of ISO 16589 shows seal types and examples. It also specifies the nominal dimensions and tolerance of the seals, shafts and housings, as well as a dimensional identification code. NOTE ISO 16589 is complementary to ISO 6194, which covers seals incorporating elas

18、tomeric sealing elements. 2 Normative references 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.

19、ISO 286-2, 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 shafts ISO 5598, Fluid power systems and components Vocabulary ISO 16589-2, Rotary shaft lip-type seals incorporating the

20、rmoplastic sealing elements Part 2: Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 and ISO 16589-2 apply. 4 Symbols a housing bore depth b nominal seal width c housing bore chamfer length d mminor diameter at the shaft lead-in chamfe

21、r D 1nominal diameter of the shaft to be used with the seal ISO 16589-1:2011(E) 2 ISO 2011 All rights reservedD 2nominal diameter of the housing bore and of the outer diameter of the seal r housing bore corner radius 5 Seal types and examples 5.1 Seal outside diameter construction Figure 1 shows thr

22、ee basic types of seal outside diameter construction. Type 1 Type 2 Type 3 Metal-cased Semi-rubber-covered metal-cased Rubber-covered metal-cased NOTE Because of some variations in design details, or seals made by different manufacturers, the constructions shown are intended only to be representativ

23、e of the basic types. Figure 1 Three basic types of outside diameter construction 5.2 Sealing lip arrangements Some examples of sealing lip arrangements are shown in Figure 2. Example 1 Example 2 Example 3 Example 4 Single lip Double lip in tandem Single lip with thermoplastic protection lip Single

24、lip with elastomeric protection lip Figure 2 Sealing lip arrangements ISO 16589-1:2011(E) ISO 2011 All rights reserved 3The sealing lip arrangements shown in Figure 2 can be used with each seal outside diameter construction shown in Figure 1. Hydrodynamic aids on the main lip may be incorporated by

25、some manufacturers in certain applications. The design of the sealing lip should be agreed between the manufacturer and purchaser. NOTE Because of variations in design detail, or seals made by different manufacturers, the constructions shown are intended only as representative examples of the basic

26、types. 6 Pressure and nominal dimensions 6.1 Pressure Seals of this type are normally used with atmospheric pressure on the air side, and sealing fluids at pressures from 0 kPa to 30 kPa (0,3 bar) above atmospheric pressure. The user should consult the seal manufacturer regarding use at other pressu

27、res. 6.2 Nominal dimensions The nominal dimensions of the seals are shown in Figure 3 and given in Table 1. Key b nominal seal width D 1nominal diameter of the shaft to be used with the seal D 2nominal diameter of the housing bore and seal outside diameter aAir side. bFluid side. Figure 3 Seal ISO 1

28、6589-1:2011(E) 4 ISO 2011 All rights reservedTable 1 Nominal dimensions Dimensions in millimetres D 1D 2b aD 1D 2b aD 1D 2b aD 1D 2b a6 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

29、 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 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

30、 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 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 4

31、0 7 25 47 7 ab may be increased to permit the use of more complex seal configurations. 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. It shall be free from burrs, sharp edges and rough machining marks. ISO 16589-1:2011

32、(E) ISO 2011 All rights reserved 5Key d mminor diameter at the shaft lead-in chamfer D 1nominal diameter of the shaft to be used with the seal aRemove sharp edge. Figure 4 Shaft lead-in chamfer Table 2 Shaft lead-in chamfer Dimensions in millimetres Shaft diameter Shaft diameter D 1d mD 1d mmax. max

33、. D 1u 10 D 1 1,5 50 D 1u 70 D 1 4,0 10 D 1u 20 D 1 2,0 70 D 1u 95 D 1 4,5 20 D 1u 30 D 1 2,5 95 D 1u 130 D 1 5,5 30 D 1u 40 D 1 3,0 130 D 1u 240 D 1 7,0 40 D 1u 50 D 1 3,5 240 D 1u 480 D 1 11,0 Assembly tools are specified in ISO 16589-3 and should be used to ensure that the sealing lip is not dama

34、ged. If a radius is used instead of a lead-in chamfer, its value shall be between 1,8 mm and 3,0 mm. 7.2 Diametral tolerance The shaft shall have a diametral tolerance not greater than h11, as specified in ISO 286-2. 7.3 Surface roughness and hardness 7.3.1 Surface roughness The seal contact surface

35、 of a ground shaft shall be finished to a surface roughness, measured in the axial direction of between Ra 0,2 m and Ra 0,5 m, and between Rz 1,2 m and Rz 3,0 m. Some surface finish processes will not provide roughness values that fall within the limits given in this part of ISO 16589. Surface rough

36、ness requirements shall be determined between the manufacturer of the surface and the seal supplier. ISO 16589-1:2011(E) 6 ISO 2011 All rights reservedThe seal contact surface shall normally be free of machining leads. Ground and polished shafts can require other grades of surface texture, in which

37、case they should be subject to agreement between the manufacturer and user. Exceptional service conditions can necessitate the selection of other grades of surface texture, in which case they should be subject to agreement between the manufacturer and user. 7.3.2 Surface hardness Unless otherwise ag

38、reed between the manufacturer and user, the surface hardness of the shaft should be a minimum of 30 Rockwell C. If the shaft could be subject to damage during handling, this should be increased to 45 Rockwell C. 8 Housings 8.1 Dimensions 8.1.1 Where the housing is a rigid fully-machined ferrous part

39、, the housing bore shall conform to 8.2 and 8.3. 8.1.2 The housing bore shall be provided with a lead-in chamfer, free from burrs, as shown in Figure 5 and specified in Table 3. 8.1.3 The housing bore depth and corner radius shall be as shown in Figure 5 and specified in Table 3. If the housing is n

40、ot in accordance with 8.1.1 to 8.1.3 (e.g. non-ferrous or non-metallic material, pressing of ferrous or non-ferrous material), the dimensions, tolerances and lead-in configuration should be agreed between the purchaser and manufacturer. Key D 2nominal diameter of the housing bore and seal outside di

41、ameter r housing bore corner radius a housing bore depth c housing bore chamfer length Figure 5 Housing bore ISO 16589-1:2011(E) ISO 2011 All rights reserved 7Table 3 Housing bore dimensions Dimensions in millimetres Nominal seal width b a c r min. max. u10 b + 1,2 0,70 to 1,00 0,50 10 b + 1,5 1,00

42、to 1,30 0,75 8.2 Housing bore tolerance The housing bore shall have a diametral tolerance not greater than H8, as specified in ISO 286-2. 8.3 Housing bore surface roughness The surface roughness of the housing bore, measured in the axial direction, shall be between Ra 1,6 m and Ra 3,2 m, and between

43、 Rz 6,3 m and Rz 12,5 m. There shall be no visible surface imperfections. The housing bore surface roughness may require lower values when metal-cased seals are used, in which case they should be subject to agreement between the manufacturer and user. 9 Seal tolerances 9.1 Seal width The recommended

44、 seal width tolerances are given in Table 4. Table 4 Seal width tolerance Dimensions in millimetres Nominal seal width b Tolerance u10 0,3 10 b u 14 0,4 14 b u 18 0,5 18 b u 25 0,6 9.2 Seal outside diameter To provide an interference fit between the seal outside surface and the housing bore surface,

45、 the tolerances for the outside diameter of the seal shall be as given in Table 5. The seal outside diameter tolerances in Table 5 shall be used for ferrous housings only. If non-ferrous housing materials are used, the seal manufacturer shall be consulted. The seal manufacturer provides the proper r

46、ecommendations regarding the interference fit between the seal and the non-ferrous housing. 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 might be necessary for agreement to be reached between the p

47、urchaser and manufacturer on the limits to be used. See Annex A for the recommended form. ISO 16589-1:2011(E) 8 ISO 2011 All rights reservedTable 5 Seal outside diameter tolerances Dimensions in millimetres Nominal seal outside diameter D 2Diametral tolerance Roundness tolerance aMetal-cased Rubber-

48、covered bcMetal-cased Rubber-covered +0,20 +0,30 u50 +0,08 +0,15 0,18 0,25 +0,23 +0,35 50 D 2u 80 +0,09 +0,20 0,25 0,35 +0,25 +0,35 80 D 2u 120 +0,10 +0,20 0,30 0,50 +0,28 +0,45 120 D 2u 180 +0,12 +0,25 0,40 0,65 +0,35 +0,45 180 D 2u 300 +0,15 +0,25 0,25 % of outside diameter 0,80 +0,45 +0,55 300 D

49、2u 530 +0,20 +0,30 0,25 % of outside diameter 1,00 a The roundness tolerance is equal to the difference between the maximum diameter and the minimum diameter derived from three of more equally spaced measurements. b Rubber-covered and semi-rubber-covered seals having a wave-profile outside surface are acceptable but will require different tolerances, to be agreed between the manufacturer and purchaser. c Rubber-covered and semi-rubber-covered seals employi