1、BRITISH STANDARD BS 4480-3: 1993 ISO 4379:1993 Incorporating Amendment No. 1 Plain bearings: metric series Part 3: Copper alloy bushes UDC 621.822.5:669.35BS4480-3:1993 This British Standard, having been prepared under the directionof the Machinery and Components Standards Policy Committee, was publ
2、ished underthe authority of the Standards Board and comes intoeffect on 15September1993 BSI 10-1999 First published October 1979 Second edition September 1993 The following BSI references relate to the work on this standard: Committee reference MCE/12 Draft for comment 90/79497 DC ISBN 0 580 22243 8
3、 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Machinery and Components Standards Policy Committee (MCE/-) to Technical Committee MCE/12, upon which the following bodies were represented: Association of Bronze and Brass Founders Britis
4、h Plastics Federation British Powder Metal Federation Copper Development Association Institution of Diesel and Gas Turbine Engineers Institution of Mechanical Engineers Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No. Date Comments 8975 December 1995 Indic
5、ated by a sideline in the marginBS4480-3:1993 BSI 10-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Normative references 1 3 Dimensions and tolerances 1 4 Material 5 5 Surface finish 5 6 Construction 5 7 Quality assurance 5 8 Designation 5 Annex A (in
6、formative) Bibliography 6 Figure 1 1 Table 1 Type C 2 Table 2 Type F 3 Table 3 Tolerances 4 List of references Inside back coverBS4480-3:1993 ii BSI 10-1999 National foreword This Part of BS4480 has been prepared under the direction of the Machinery and Components Standards Policy Committee. It is i
7、dentical with ISO4379:1993 Plain bearings Copper alloy bushes, published by the International Organization for Standardization (ISO). It supersedes BS4480-3:1979 which is withdrawn. The Technical Committee has reviewed the provisions of ISO2768-1:1989, ISO4382-1:1991 and ISO4382-2:1991 to which norm
8、ative reference is made in the text and has decided that they are acceptable for use in conjunction with this standard. 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
9、 a British Standard does not of itself confer immunity from legal obligations. Cross-references International Standard Corresponding British Standard ISO 1302:1992 BS 308 Engineering drawing practice Part 2:1985 Recommendations for dimensioning and tolerancing of size (Technically equivalent) ISO 12
10、301:1992 BS 7679:1993 Plain bearings Quality control techniques and inspection of geometrical and material quality characteristics (Identical) Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to6, an inside back cover and a back cover. This standard
11、 has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS4480-3:1993 BSI 10-1999 1 1 Scope This International Standard specifies dimensions and tolerances for cylindrical and flanged bushes with interna
12、l diameter, d 1 , in the range6mm to200mm. It applies to solid mono-metal copper alloy bushes to be used as plain bearings with and without oil holes and oil grooves. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of thi
13、s International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated
14、 below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 1302:1992, Technical drawings Method of indicating surface texture. ISO 2768-1:1989, General tolerances Part1:Tolerances for linear and angular dimensions without individual tolerance indications. ISO 4
15、382-1:1991, Plain bearings Copper alloys Part 1: Cast copper alloys for solid and multilayer thick-walled plain bearings. ISO 4382-2:1991, Plain bearings Copper alloys Part 2: Wrought copper alloys for solid plain bearings. ISO 12301:1992, Plain bearings Quality control techniques and inspection of
16、geometrical and material quality characteristics. 3 Dimensions and tolerances Dimensions shall be as shown and given inFigure 1 and inTable 1 andTable 2. Tolerances shall be as given inTable 3. Tolerance classes which deviate from those given in this International Standard shall in each case be adde
17、d in the designation to the nominal size. The dimensions of d 2shall be used to determine the IT value in the case of the coaxial tolerance. The dimensions of d 3shall be used to determine the IT value in the case of the axial runout. Details which have not been specified shall be chosen appropriate
18、ly. All dimensions are given in millimetres. Figure 1 BS4480-3:1993 2 BSI 10-1999 Table 1 Type C d 1 d 2 b 1 Chamfers 45 15 C 1 , C 2 max. C 2 max. 6 8 10 12 6 10 0,3 1 8 10 12 14 6 10 0,3 1 10 12 14 16 6 10 0,3 1 12 14 16 18 10 15 20 0,5 2 14 16 18 20 10 15 20 0,5 2 15 17 19 21 10 15 20 0,5 2 16 18
19、 20 22 12 15 20 0,5 2 18 20 22 24 12 20 30 0,5 2 20 23 24 26 15 20 30 0,5 2 22 25 26 28 15 20 30 0,5 2 (24) 27 28 30 15 20 30 0,5 2 25 28 30 32 20 30 40 0,5 2 (27) 30 32 34 20 30 40 0,5 2 28 32 34 36 20 30 40 0,5 2 30 34 36 38 20 30 40 0,5 2 32 36 38 40 20 30 40 0,8 3 (33) 37 40 42 20 30 40 0,8 3 35
20、 39 41 45 30 40 50 0,8 3 (36) 40 42 46 30 40 50 0,8 3 38 42 45 48 30 40 50 0,8 3 40 44 48 50 30 40 60 0,8 3 42 46 50 52 30 40 60 0,8 3 45 50 53 55 30 40 60 0,8 3 48 53 56 58 40 50 60 0,8 3 50 55 58 60 40 50 60 0,8 3 55 60 63 65 40 50 70 0,8 3 60 65 70 75 40 60 80 0,8 3 65 70 75 80 50 60 80 1 4 70 75
21、 80 85 50 70 90 1 4 75 80 85 90 50 70 90 1 4 80 85 90 95 60 80 100 1 4 85 90 95 100 60 80 100 1 4 90 100 105 110 60 80 120 1 4 95 105 110 115 60 100 120 1 4 100 110 115 120 80 100 120 1 4 105 115 120 125 80 100 120 1 4 110 120 125 130 80 100 120 1 4BS4480-3:1993 BSI 10-1999 3 Table 1 Type C Table 2
22、Type F d 1 d 2 b 1 Chamfers 45 15 C 1 , C 2 max. C 2 max. 120 130 135 140 100 120 150 1 4 130 140 145 150 100 120 150 2 5 140 150 155 160 100 150 180 2 5 150 160 165 170 120 150 180 2 5 160 170 180 185 120 150 180 2 5 170 180 190 195 120 180 200 2 5 180 190 200 210 150 180 250 2 5 190 200 210 220 15
23、0 180 250 2 5 200 210 220 230 180 200 250 2 5 NOTEValues in parentheses are for special applications only. They shall be avoided as far as possible. Chamfers 45 15 d 1 d 2 d 3 b 2 d 2 d 3 b 2 b 1 C 1 , C 2 max. C 2 max. u Series 1 Series 2 6 8 10 1 12 14 3 10 0,3 1 1 8 10 12 1 14 18 3 10 0,3 1 1 10
24、12 14 1 16 20 3 10 0,3 1 1 12 14 16 1 18 22 3 10 15 20 0,5 2 1 14 16 18 1 20 25 3 10 15 20 0,5 2 1 15 17 19 1 21 27 3 10 15 20 0,5 2 1 16 18 20 1 22 28 3 12 15 20 0,5 2 1,5 18 20 22 1 24 30 3 12 20 30 0,5 2 1,5 20 23 26 1,5 26 32 3 15 20 30 0,5 2 1,5 22 25 28 1,5 28 34 3 15 20 30 0,5 2 1,5 (24) 27 3
25、0 1,5 30 36 3 15 20 30 0,5 2 1,5 25 28 31 1,5 32 38 4 20 30 40 0,5 2 1,5 (27) 30 33 1,5 34 40 4 20 30 40 0,5 2 1,5 28 32 36 2 36 42 4 20 30 40 0,5 2 1,5 30 34 38 2 38 44 4 20 30 40 0,5 2 2 32 36 40 2 40 46 4 20 30 40 0,8 3 2 (33) 37 41 2 42 48 5 20 30 40 0,8 3 2 35 39 43 2 45 50 5 30 40 50 0,8 3 2 (
26、36) 40 44 2 46 52 5 30 40 50 0,8 3 2 38 42 46 2 48 54 5 30 40 50 0,8 3 2BS4480-3:1993 4 BSI 10-1999 Table 2 Type F Table 3 Tolerances Chamfers 45 15 d 1 d 2 d 3 b 2 d 2 d 3 b 2 b 1 C 1 , C 2 max. C 2 max. u Series 1 Series 2 40 44 48 2 50 58 5 30 40 60 0,8 3 2 42 46 50 2 52 60 5 30 40 60 0,8 3 2 45
27、50 55 2,5 55 63 5 30 40 60 0,8 3 2 48 53 58 2,5 58 66 5 40 50 60 0,8 3 2 50 55 60 2,5 60 68 5 40 50 60 0,8 3 2 55 60 65 2,5 65 73 5 40 50 70 0,8 3 2 60 65 70 2,5 75 83 7,5 40 60 80 0,8 3 2 65 70 75 2,5 80 88 7,5 50 60 80 1 4 2 70 75 80 2,5 85 95 7,5 50 70 90 1 4 2 75 80 85 2,5 90 100 7,5 50 70 90 1
28、4 3 80 85 90 2,5 95 105 7,5 60 80 100 1 4 3 85 90 95 2,5 100 110 7,5 60 80 100 1 4 3 90 100 110 5 110 120 10 60 80 120 1 4 3 95 105 115 5 115 125 10 60 100 120 1 4 3 100 110 120 5 120 130 10 80 100 120 1 4 3 105 115 125 5 125 135 10 80 100 120 1 4 3 110 120 130 5 130 140 10 80 100 120 1 4 3 120 130
29、140 5 140 150 10 100 120 150 1 4 3 130 140 150 5 150 160 10 100 120 150 2 5 4 140 150 160 5 160 170 10 100 150 180 2 5 4 150 160 170 5 170 180 10 120 150 180 2 5 4 160 170 180 5 185 200 12,5 120 150 180 2 5 4 170 180 190 5 195 210 12,5 120 180 200 2 5 4 180 190 200 5 210 220 15 150 180 250 2 5 4 190
30、 200 210 5 220 230 15 150 180 250 2 5 4 200 210 220 5 230 240 15 180 200 250 2 5 4 NOTEValues in parentheses are for special applications only. They shall be avoided as far as possible. d 1 d 2 d 3 b 1 Housing bore Shaft diameter d E6 a u 120 s6 d11 h13 H7 e7 or g7 b 120 r6 a After pressing, this us
31、ually gives a tolerance position H and tolerance grade approximately IT8. b Recommended tolerance, depending on application. When the bushes are to be used in conjunction with ready-made precision ground shafts of tolerance position h, the tolerance on the inside diameter d 1shall be D6, so that the
32、 probable tolerance after fitting is F8. If the bearing bore is to be machined after fitting, the size and tolerance of the inside diameter d 1shall be agreed upon between the manufacturer and customer.BS4480-3:1993 BSI 10-1999 5 4 Material Cast copper alloys shall be in accordance with ISO4382-1. W
33、rought copper alloys shall be in accordance with ISO4382-2. 5 Surface finish Surface roughness, indicated according to ISO1302 (seeFigure 1), shall be the following: Edges shall be free of burrs. Slight indentations shall only be accepted on the outside surfaces and provided they are considered not
34、to have an effect on fitting and function. 6 Construction Permissible deviations for dimensions without tolerance indication shall be in accordance with tolerance class “m” specified in ISO2768-1. For outside chamfer C 2of 45 , no special designation details are required. For outside chamfer C 2of 1
35、5 , Y shall be additionally specified in the designation. Other chamfers shall be agreed between the manufacturer and customer. Flange bushes type F with or without undercut (dimension u) shall be agreed between the manufacturer and customer. NOTE 1The tolerance classes recommended in this Internati
36、onal Standard are applicable to any normal applications in general machinery construction. The fits recommended in this International Standard should be checked in the case of bushes used in the area of hydrodynamic lubrication, or pressed or bonded in housings which are unusual as regards both mate
37、rial and design. 7 Quality assurance For quality control techniques and inspection of the geometrical and material quality characteristics, see ISO12301. 8 Designation EXAMPLE Designation of a bush type C of inside diameter d 1 =20mm, outside diameter d 2=24mm and width b 1=20mm, with agreed outside
38、 chamfer C 2of15 (Y), made of CuSn8P in accordance with ISO4382-2: Bush ISO 4379C 20 24 20 Y CuSn8PBS4480-3:1993 6 BSI 10-1999 Annex A (informative) Bibliography 1 ISO 468:1982, Surface roughness Parameters, their values and general rules for specifying requirements. 2 ISO 2692:1988, Technical drawi
39、ngs Geometrical tolerancing Maximum material principle.BS4480-3:1993 BSI 10-1999 List of references See national foreword.BS 4480-3: 1993 ISO 4379:1993 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStanda
40、rds. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant
41、 aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:020
42、89969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Servic
43、es. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national,
44、 European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing mem
45、bers of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI als
46、o holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, rec
47、ording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.
