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1、BRITISH STANDARD OBSOLESCENT NOT TO BE USED ON NEW DESIGNS. SUPERSEDED BY BS 5751. BS 1658:1970 Incorporating Amendment No. 1 Specification for Housings for hydraulic seals for reciprocating applications Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Cop
2、y, (c) BSI BS 1658:1970 This British Standard, having been approved by the Mechanical Engineering Industry Standards Committee, was published under the authority of the Executive Board on 11 September 1970 BSI 11-1999 First published October 1950 First revision September 1970 The following BSI refer
3、ences relate to the work on this standard: Committee reference MEE/109 Draft for comment 69/23983 ISBN 580 06253 8 Co-operating organizations The Mechanical Engineering Industry Standards Committee, under whose supervision this British Standard was prepared, consists of representatives from the foll
4、owing Government departments and scientific and industrial organizations: Associated Offices Technical CommitteeEngineering Equipment Users Association* Association of Consulting EngineersGas Council Association of Mining Electrical and Institution of Civil Engineers Mechanical EngineersInstitution
5、of Gas Engineers Board of TradeInstitution of Heating and Ventilating British Chemical Plant Manufacturers Engineers AssociationInstitution of Mechanical Engineers British Compressed Air SocietyInstitution of Mechanical Engineers British Electrical and Allied Manufacturers (Automobile Division) Asso
6、ciationInstitution of Production Engineers British Gear Manufacturers AssociationLocomotive and Allied Manufacturers British Internal Combustion Engine Association of Great Britain Manufacturers AssociationLondon Transport Executive British Steel IndustryMachine Tool Trades Association British Mecha
7、nical Engineering Ministry of Defence, Army Department ConfederationMinistry of Public Building and Works British Pump Manufacturers AssociationMinistry of Technology* Crown Agents for Oversea Governments and Ministry of Transport AdministrationNational Coal Board* Department of Employment and Produ
8、ctivity National Physical Laboratory (Ministry of (H.M. Factory Inspectorate)Technology) Electricity Council, the Central Electricity Royal Institute of British Architects Generating Board and the Area Boards in England and Wales The Government department and scientific and industrial organizations
9、marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Association of Hydraulic Equipment Hydraulic Association Manufacturers Ministry of Defence, Navy Department Engineering Industri
10、es AssociationMinistry of Technology National Fluid Seal Manufacturers Association Engineering Laboratory Amendments issued since publication Amd. No.Date of issueComments 3042June 1979Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 200
11、6, Uncontrolled Copy, (c) BSI BS 1658:1970 BSI 11-1999i Contents Page Co-operating organizationsInside front cover Forewordii 1Scope1 2Application1 3General1 4Dimensions1 5Tolerances and surface texture1 6Lead-in chamfers1 Figure 1 Typical housing for external type seal2 Figure 2 Typical housing for
12、 internal type seal5 Table 1 Housing dimensions for external type seal3 Table 2 Housing dimensions for internal type seal6 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 ii BSI 11-1999 Foreword This British Standard has been re
13、vised, under the authority of the Mechanical Engineering Industry Standards Committee, as it is considered necessary to have a standard range of metric housing sizes. It will be noted that the title has been made slightly more restrictive in order that it may more truly represent the scope of the st
14、andard. The dimensions given in this standard, although providing the necessary basis for standardization in the manufacture and application of hydraulic seals, should not be regarded as providing all the information required for design purposes. It is for example very desirable to consult the seal
15、manufacturer on the disposition of tolerances on the inner and outer diameters to ensure that proper interference is provided between the seal and its mating surface. Obsolescent (by Amendment No. 1) For new designs of hydraulic cylinders BS 1658 has been rendered obsolescent by the publication of B
16、S 5751, which implements Draft International Standard ISO/DIS 5597-I “Hydraulic fluid power Seal housings Dimensions and tolerances Part I: Cylinder rod and piston seals for reciprocating applications” published by the International Organization for Standardization (ISO). BS 1658 has been retained t
17、o provide a standard for replacement seals. 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 Standard does not of itself confer immunity from legal obligation
18、s. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the in
19、side front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 BSI 11-19991 1 Scope This British Standard specifies the dimensions for long housings and short housings for hydraulic seals for reciprocating applications. The r
20、ange of sizes is from 6 mm to 500 mm for rods, and from 16 mm to 540 mm for cylinders. 2 Application It is intended that the housings shall accommodate hydraulic seals where working pressures do not exceed 340 bar (34 MN/m2). The types of housings covered by this standard are illustrated in Figure 1
21、 and Figure 2, but it should be noted that these figures are diagrammatic only and do not represent recommendations for housing design. It is recommended that the seal manufacturer be consulted on details of housing design which are not specified in this standard. 3 General The manner of constructio
22、n of hydraulic seals varies with each manufacturer and no attempt is made to lay down details of seal design. The exact degree of interference between the hydraulic seal and its housing is a characteristic related to the design of the seal and therefore this standard does not lay down tolerance limi
23、ts on the housing diameters. Housings should be designed with due consideration to the supporting face behind the seal. If large clearances and corner radii are permitted behind the seal, extrusion damage may occur. Corners of supporting surfaces are required to provide maximum support against extru
24、sion but all sharp edges shall be removed. 4 Dimensions The dimensions of the housings shall be as given in Table 1 and Table 2; these are related to the illustrations given in Figure 1 and Figure 2 respectively. 5 Tolerances and surface texture The working clearances and surface texture of dynamic
25、metal parts directly affect the performance of the seal and it is recommended that the manufacturer of the hydraulic seals should be consulted. The tolerance on the length of the housing shall be + 0.25 mm 0 mm. 6 Lead-in chamfers The location of the lead-in chamfer shall be as shown in Figure 1 and
26、 Figure 2. The chamfer shall make an angle of 15 % with the axis and its length shall be not less than the following: External diameter of housing Minimum length of chamfer (L) mm Up to and including 65 Over 65 up to and including 175 Above 175 mm 2.5 4.0 5.0 Licensed Copy: sheffieldun sheffieldun,
27、na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 2 BSI 11-1999 Figure 1 Typical housing for external type seal Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 BSI 11-19993 Table 1 Housing dimension
28、s for external type seal (see Figure 1) All dimensions are in millimetres External diameter B Radial section Internal diameter A Length C longLength C short Fillet radius (max.) 16 18 20 22 25 28 30 32 5 6 8 10 12 15 18 20 22 1680.4 34 38 40 42 45 50 56 60 63 7.5 19 23 25 27 30 35 41 45 48 24120.4 7
29、0 75 80 85 90 95 100 105 110 120 10 50 55 60 65 70 75 80 85 90 100 32160.4 125 130 135 140 145 150 155 160 165 170 175 12.5 100 105 110 115 120 125 130 135 140 145 150 40200.8 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 4 BS
30、I 11-1999 Table 1 Housing dimensions for external type seal (see Figure 1) All dimensions are in millimetres External diameter B Radial section Internal diameter A Length C longLength C short Fillet radius (max.) 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 15 150 160 170 180 190
31、200 210 220 230 240 250 260 270 280 290 300 48240.8 360 400 420 440 460 480 500 540 20 320 360 380 400 420 440 460 500 64320.8 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 BSI 11-19995 Figure 2 Typical housing for internal ty
32、pe seal Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 6 BSI 11-1999 Table 2 Housing dimensions for internal type seal (see Figure 2) All dimensions are in millimetres Internal diameter A Radial section External diameter B Leng
33、th C longLength C short Fillet radius (max.) 6 8 10 12 14 16 18 20 22 5 16 18 20 22 24 26 28 30 32 1680.4 20 22 25 28 30 32 35 36 38 40 42 45 48 50 7.5 35 37 40 43 45 47 50 51 53 55 57 60 63 65 24120.4 50 53 56 60 63 65 70 75 80 85 90 100 10 70 73 76 80 83 85 90 95 100 105 110 120 32160.4 Licensed C
34、opy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 BSI 11-19997 Table 2 Housing dimensions for internal type seal (see Figure 2) All dimensions are in millimetres Internal diameter A Radial section External diameter B Length C longLength C s
35、hort Fillet radius (max.) 100 105 110 115 120 125 130 135 140 145 150 12.5 125 130 135 140 145 150 155 160 165 170 175 40200.8 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 15 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 48240.8 320 360 380 400 420 440 460 500 20
36、 360 400 420 440 460 480 500 540 64320.8 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 8 blank Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:09:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1658:1970 BSI 11-1999 British Stan
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