1、BRITISH STANDARD BS 1660-12: 1996 ISO 5413:1993 Machine tapers Part 1: Specification for positive drive of Morse tapersBS1660-12:1996 This British Standard, having been prepared under the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes into
2、effect on 15 January 1996 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference MTE/6 Draft for comment 92/70983 DC ISBN 0 580 24995 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Comm
3、ittee 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 Comments BSI 09-1999 i BS1660-12:1996 Conten
4、ts Page Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Normative reference 1 3 Dimensions 1 Figure 1 Positive drive 1 Table 1 Positive drive dimensions 2 List of references Inside back coverBS1660-12:1996 ii BSI 09-1999 National foreword This British Standard has been pre
5、pared by Technical Committee MTE/6. It is identical with ISO 5413:1993 Machine toolsPositive drive of Morse tapers, which was prepared by Technical Committee ISO/TC 29 of the International Organization for Standardization (ISO) and in the development of which the United Kingdom played an active part
6、. 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 obligations. Cross-reference International Standard
7、Corresponding British Standard ISO 296:1991 BS 1660 Machine tapers Part 1:1992 Specification for shanks and sockets with self-holding tapers (Morse and metric 5 %) (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 and 2, an inside back
8、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.BS1660-12:1996 BSI 09-1999 1 1 Scope This International Standard specifies dimensions for positive drive of ex
9、ternal and internal Morse tapers. The Morse tapers are in accordance with ISO 296. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the edition indicated was valid
10、. 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 edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standa
11、rds. ISO 296:1991, Machine tools Self-holding tapers for tool shanks. 3 Dimensions See Figure 1 and Table 1. Figure 1 Positive driveBS1660-12:1996 2 BSI 09-1999 Table 1 Positive drive dimensions Dimensions in millimetres Morse taper No. External taper Internal taper D 1 b d9 l 3 l 4 min. r b 1 H9 c
12、min. l 6 R 3 36 24 12 18 1,6 24 40 12 6 4 43 32 15 23 1,6 32 50 15 8 5 60 45 18 28 2 45 65 18 10 6 85 65 25 39 3 65 90 25 12BS1660-12:1996 BSI 09-1999 List of references See national foreword.BS1660-12: 1996 ISO5413:1993 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is
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