BS-7568-19-1992 ISO-9448-3-1991.pdf
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1、BRITISH STANDARD BS 7568-19: 1992 ISO 9448-3: 1991 Press tools Part 19: Guide bushes Form B, ball cage bushes, plain, type 1 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:39:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7568-19:1992 This British Standard
2、, having been prepared under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 August 1992 BSI 10-1999 The following BSI references relate to the work on this standard: Committee ref
3、erence MTE/12 Draft for comment 89/79319 DC ISBN 0 580 20953 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Machine, Engineers and Hand Tools Standards Policy Committee (MTE/-) to Technical Committee MTE/12, upon which the following b
4、odies were represented: Advanced Manufacturing Technology Research Institute Amalgamated Engineering Union Gauge and Tool Makers Association Coopted member Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 1
5、1:39:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7568-19:1992 BSI 10-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Dimensions1 3Material and corresponding hardness1 4Designation1 Annex A (informative) BibliographyInside back cover Figure 11 Table 12 L
6、icensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:39:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7568-19:1992 ii BSI 10-1999 National foreword This Part of BS 7568 has been prepared under the direction of the Machine, Engineers and Hand Tools Standards Poli
7、cy Committee. It is identical with ISO 9448-3:1991 Tools for pressing Guide bushes Part 3: Form B, ball cage bushes, plain, type 1, prepared by Technical Committee ISO/TC29, Small tools, and published by the International Organization for Standardization (ISO). A British Standard does not purport to
8、 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. Summary of pages This document comprises a front cover, an inside front cover,
9、pages i and ii, pages 1 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. Licensed Copy: London South Bank University, London South Bank
10、University, Fri Dec 08 11:39:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7568-19:1992 BSI 10-19991 1 Scope This part of ISO 9448 specifies the main dimensions and tolerances, in millimetres, of guide bushes of form B, plain ball cage bushes, type 1, intended for use in press tools and to be mou
11、nted in the clamp plate by means of interference fit. It gives guidance on the materials, and specifies the hardness and the designation of bushes in accordance with this part of ISO 9448. 2 Dimensions See Figure 1 and Table 1. Details not stated such as chamfers, radii, lubrication grooves, etc., a
12、re left to the manufacturers discretion. 3 Material and corresponding hardness The material is left to the manufacturers discretion and the hardness shall be (63 1) HRC. 4 Designation A guide bush in accordance with this part of ISO 9448 shall be designated by a) “Guide bush”; b) a reference to this
13、 part of ISO 9448; c) its form; d) its guiding diameter, D1, in millimetres; e) its length, l1, in millimetres. EXAMPLE A guide bush of form B, plain ball cage bush, type 1, of guiding diameter D1= 12 mm and of length l1= 25 mm is designated as follows: Guide bush ISO 9448-3 B 12 25 Figure 1 License
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