1、BRITISH STANDARD BS 1660-5: 1996 ISO 3936:1993 Machine tapers Part 5: Specification for reduction sleeves with external and internal 7/24 tapersBS1660-5:1996 This British Standard, having been prepared under the directionof the Engineering SectorBoard, was published underthe authority of the Standar
2、ds Board and comes intoeffect on 15 January 1996 BSI 08-1999 The following BSI references relate to the work on this standard: Committee reference MTE/6 Draft for comment 92/70103 DC ISBN 0 580 24994 8 Committees responsible for this British Standard The preparation of this British Standard was entr
3、usted to Technical Committee MTE/6, Milling cutters and milling machine accessories, upon which the following bodies were represented: British Engineers Cutting Tools Association Gauge and Tool Makers Association Co-opted member Amendments issued since publication Amd. No. Date CommentsBS1660-5:1996
4、 BSI 08-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Normative reference 1 3 Dimensions 1 Figure 1 1 Table 1 2 List of references Inside back coverBS1660-5:1996 ii BSI 08-1999 National foreword This Part of BS 1660 has been prepared by Technical Com
5、mittee MTE/6 and is identical with ISO 3936:1993 Reduction sleeves with tenon drive with external and internal 7/24 taper Dimensions which was prepared by Technical Committee ISO/TC 29 of the International Organization for Standardization (ISO) and in the development of which the UnitedKingdom playe
6、d an active part. This Part of BS 1660 replaces BS 1660-5:1988 which is withdrawn.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 itsel
7、f confer immunity from legal obligations. Cross-references International Standard Corresponding British Standard ISO 297:1988 BS 1660 Machine tapers Part 4:1989 Specification for spindle noses and tool shanks with self-release 7/24 tapers (Identical) Summary of pages This document comprises a front
8、cover, an inside front cover, pages i and ii, pages1 and 2, 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 inside front cover.BS1660-5:1996 BSI 08-1999 1 1 Scope
9、 This International Standard specifies the dimensions of reduction sleeves with tenon drive with external 7/24 taper Nos. 40, 45, 50 and 60 and internal 7/24 taper Nos. 30, 40, 45 and 50. 7/24 tapers are in accordance with ISO 297. 2 Normative reference The following standard contains provisions whi
10、ch, through reference in this text, constitute provisions of this International Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility o
11、f applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 297:1988, 7/24 tapers for tool shanks for manual changing. 3 Dimensions See Figure 1 and Table 1. Figure 1 BS1660-5:1996 2 BSI 08-1999 Table 1
12、 Tolerances in millimetres 7/24 taper No. x Ext. Int. 40 30 0,012 45 30 0,016 40 50 30 40 45 60 40 0,02 45 50BS1660-5:1996 BSI 08-1999 List of references See national foreword.BS 1660-5: 1996 ISO3936:1993 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent
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