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    BS 4480-1-1992 Plain bearings metric series - Sintered bushes - Dimensions and tolerances《滑动轴承 米制系列 第1部分 烧结轴衬尺寸和公差》.pdf

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    BS 4480-1-1992 Plain bearings metric series - Sintered bushes - Dimensions and tolerances《滑动轴承 米制系列 第1部分 烧结轴衬尺寸和公差》.pdf

    1、BRITISH STANDARD BS 4480-1: 1992 ISO 2795:1991 Plain bearings: metric series Part 1: Sintered bushes Dimensions and tolerancesBS4480-1:1992 This British Standard, having been prepared under the directionof the Machinery andComponents Standards PolicyCommittee, was publishedunder the authority ofthe

    2、Standards Board and comes into effect on 1 May 1992 BSI 07-1999 First published July 1969 Second edition August 1974 Third edition May 1992 The following BSI references relate to the work on this standard: Committee reference MCE/12 Draft for comment 88/77398 DC ISBN 0 580 20854 0 Committees respons

    3、ible 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 British Plastics Federati

    4、on 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 CommentsBS4480-1:1992 BSI 07-1999 i Contents Page Co

    5、mmittees responsible Inside front cover National foreword ii 1 Scope 1 2 Normative references 1 3 Materials 1 4 Cylindrical bearings 1 5 Flanged bearings 2 6 Spherical bearings 4 Figure 1 1 Figure 2 2 Figure 3 4 Table 1 2 Table 2 2 Table 3 3 Table 4 3 Table 5 3 Table 6 4 List of references Inside ba

    6、ck coverBS4480-1:1992 ii BSI 07-1999 National foreword This Part of BS 4480 has been prepared under the direction of the Machinery and Components Standards Policy Committee. It is identical with ISO 2795:1991 Plain bearings Sintered bushes Dimensions and tolerances published by the International Org

    7、anization for Standardization (ISO). It supersedes BS 4480-1:1974 which is withdrawn. 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 it

    8、self confer immunity from legal obligations. Cross-references International standard Corresponding British Standard ISO 286-1:1988 BS 4500 ISO limits and fits Section 1.1:1990 Specification for bases of tolerances, deviations and fits (Identical) ISO 286-2:1988 Section 1.2:1990 Tables of commonly us

    9、ed tolerance and grades and limits deviations for holes and shafts (Identical) ISO 5755-1:1987 BS 5600 Powder metallurgical materials and products Section 5.1:1988 Materials, for bearings, impregnated with liquid lubricant (Identical) Summary of pages This document comprises a front cover, an inside

    10、 front cover, pages i and ii, pages 1 to 4, 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 theinside front cover.ISO2795:1991(E) BSI 07-1999 1 1 Scope This Internati

    11、onal Standard specifies the dimensions and tolerances 1)applicable to sintered bearings for the following ranges of inside diameters: Cylindrical bearings:1mm to60mm Flanged bearings:1mm to60mm Spherical bearings:1mm to20mm 2 Normative references The following standards contain provisions which, thr

    12、ough reference in this text, constitute provisions of this 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 app

    13、lying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 286-1:1988, ISO system of limits and fits Part1: Bases of tolerances, deviations and fits. ISO 286-2:1988, ISO system of limits and fits Part2:Ta

    14、bles of standard tolerance grades and limit deviations for holes and shafts. ISO 5755-1:1987, Sintered metal materials Specifications Part 1: Materials, for bearings, impregnated with liquid lubricant. 3 Materials Materials used for manufacturing sintered bearings shall conform to ISO 5755-1. 4 Cyli

    15、ndrical bearings 4.1 Dimensions See Figure 1 and Table 1 and Table 2. 1) See ISO 286-1 and ISO 286-2 for the limit deviations and tolerance grades specified in this International Standard. Figure 1 ISO2795:1991(E) 2 BSI 07-1999 Table 1 Table 2 4.2 Tolerances The tolerances on the bearings after fitt

    16、ing and the tolerances on the housing and insertion pin are given below. In addition, tolerances on the inside and outside diameters of the bearing before fitting are given. NOTE 1Since the actual tolerances and combinations of tolerances in the as-delivered state depend upon the characteristics of

    17、the materials and the manufacturing methods, they should be discussed with the manufacturer. As-delivered: on outside diameter D: in the ranges r6 to s7, for D # 50 mm r7 to s8, for D 50 mm on inside diameter d: in the ranges F7 to G7, for D # 50 mm F8 to G8, for D 50 mm on bearing length L: js 13 o

    18、n coaxiality of the outside diameter with respect to the inside surface diameter (tolerance based on the outside diameter, D): t 1= IT 9 for D # 50 mm t 2= IT 10 for D 50 mm insertion pin: in the range m5 to m6 Housing: H7 Bearing bore after fitting (assuming the housing is rigid): H7, for D # 50 mm

    19、 H8, for D 50 mm 5 Flanged bearings 5.1 Dimensions See Figure 2 and Table 3 to Table 5. Dimensions in millimetres Inside diameter d Outside diameter, D Length a L Normal series Thin series b 1 1,5 2 2,5 3 3 4 5 6 6 5 12 12 23 23 34 4 5 6 7 8 9 10 12 14 15 16 18 8 9 10 11 12 14 16 18 20 21 22 24 7 8

    20、9 10 11 12 14 16 18 19 20 22 346 458 4610 5810 6812 61014 81016 81220 101420 101525 121625 121830 20 22 25 28 30 32 35 38 40 42 45 48 50 55 60 26 28 32 36 38 40 45 48 50 52 55 58 60 65 72 25 27 30 33(34) 35(36) 38 41 44 46 48 51 55 58 63 68 15202530 15202530 20253035 20253040 20253040 20253040 25354

    21、050 25354555 30405060 30405060 35455565 355070 355070 405570 506070 a As from inside diameter 20 mm (included), the last value for the length is not applicable to the thin series. b Dimensions in parentheses shall be used as “2nd choice”. Dimensions in millimetres Wall thickness Chamfer C above up t

    22、o and incl. max. 1 2 3 4 5 1 2 3 4 5 0,2 0,3 0,4 0,6 0,7 0,8 Dd 2 - Figure 2 ISO2795:1991(E) BSI 07-1999 3 Table 3 Table 4 Table 5 5.2 Tolerances The tolerances on the bearings after fitting and the tolerances on the housing and insertion pin are given below. In addition, tolerances on the inside an

    23、d outside diameters of the bearing and on the flange before fitting are given. NOTE 2Since the actual tolerances and combinations of tolerances in the as-delivered state depend upon the characteristics of the materials and the manufacturing methods, they should be discussed with the manufacturer. As

    24、-delivered: on outside diameter D: in the ranges r6 to s7, for D # 50 mm r7 to s8, for D 50 mm on inside diameter d: in the ranges F7 to G7, for D # 50 mm F8 to G8, for D 50 mm on bearing length L: js 13 on flange diameter D 1 : js13 on flange thickness e: js13 on coaxiality of the outside diameter

    25、with respect to the inside surface diameter (tolerance based on the outside diameter, D): t 1= IT 9, for D # 50 mm t 2= IT 10, for D 50 mm Insertion pin: in the range m5 to m6 Dimensions in millimetres Inside diameter d Outside diameter D Flange diameter D 1 Flange thickness e Length L Normal series

    26、 1 1,5 2 2,5 3 3 4 5 6 6 5 6 8 9 9 1 1 1,5 1,5 1,5 2 2 3 3 4 4 5 6 7 8 9 10 12 14 15 16 18 8 9 10 11 12 14 16 18 20 21 22 24 12 13 14 15 16 19 22 24 26 27 28 30 2 2 2 2 2 2,5 3 3 3 3 3 3 346 458 4610 5810 6812 61014 81016 81220 101420 101525 121625 121830 20 22 25 28 30 32 35 38 40 42 45 48 50 55 60

    27、 26 28 32 36 38 40 45 48 50 52 55 58 60 65 72 32 34 39 44. 46 48 55 58 60 62 65 68 70 75 84 3 3 3,5 4 4 4 5 5 5 5 5 5 5 5 6 15202530 15202530 202530 202530 202530 202530 253540 253545 304050 304050 354555 3550 3550 4055 5060 Thin series 10 12 14 15 16 18 14 16 18 19 20 22 18 20 22 23 24 26 2 2 2 2 2

    28、 2 81016 81220 101420 101525 121625 121830 20 22 25 25 27 30 30 32 35 2,5 2,5 2,5 152025 152025 202530 Dimensions in millimetres Wall thickness Chamfer C above up to and incl. max. 1 0,2 1 2 0,3 2 3 0,4 3 4 0,6 4 5 0,7 5 0,8 Dimensions in millimetres Outside diameter D r above up to and incl. max. 1

    29、2 0,3 12 30 0,6 30 0,8 Dd 2 -ISO2795:1991(E) 4 BSI 07-1999 Housing: H7 Bearing bore after fitting (assuming the housing is rigid): H7, for D # 50 mm H8, for D 50 mm 6 Spherical bearings 6.1 Dimensions See Figure 3 and Table 6. NOTE 3A cylindrical surface is permissible on the sphere at the centre of

    30、 the bearing length, the diameter of which should be agreed between the user and the manufacturer. Table 6 6.2 Tolerances Inside diameter, d: H7 Spherical diameter, D s : h11 Bearing length, L: js13 Tolerance for the housing diameter should normally be H10 but this depends on the method of assembly.

    31、 Where an easier fit is preferred for lighter self-alignment, G10 is suggested. Figure 3 Dimensions in millimetres Inside diameter d Spherical diameter D 3 Length L Chamfer C max. 1 1,5 2 2,5 3 4 3 4,5 5 6 8 10 2 3 3 4 6 8 0,3 5 6 7 8 9 10 10 12 14 15 16 18 20 12 14 16 16 18 20 22 22 24 27 28 30 36

    32、9 10 11 11 12 13 14 15 17 20 20 20 25 0,5BS4480-1:1992 BSI 07-1999 List of references See national foreword.BS 4480-1: 1992 ISO 2795:1991 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presen

    33、ts 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 aim of BSI to

    34、 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:02089969000. Fax:

    35、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 Services. Tel:020899

    36、69001. 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, European and

    37、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 members of BSI ar

    38、e 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 also holds the co

    39、pyright, in the UK, of the publications of the internationalstandardization 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, recording or other

    40、wise 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.


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