BS 919-1-2007 Screw gauge limits and tolerances. Specification for gauges for screw threads of unified form
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ID： |
0CC12BC009194DD69E6200DB78C947BA |
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文件大小(MB)： |
0.46 |
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页数： |
52 |
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日期： |
2010-10-4 |
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BS 919-1:2007,Screw gauge limits and,tolerances –,Part 1: Specification for gauges for,screw threads of unified form,ICS 21.040.30,NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW,BRITISH STANDARD,Licensed Copy: London South Bank University, London South Bank University, Wed Dec 05 14:56:55 GMT+00:00 2007, Uncontrolled Copy, (c) BSI,Publishing and copyright information,The BSI copyright notice displayed in this document indicates when the,document was last issued.,. BSI 2007,ISBN 978 0 580 57933 2,The following BSI references relate to the work on this standard:,Committee reference TDW/4,Draft for comment 07/30158512 DC,Publication history,First published April 1952,Second edition, December 1960,Third edition, November 2007,Amendments issued since publication,Amd. no. Date Text affected,BS 919-1:2007,Licensed Copy: London South Bank University, London South Bank University, Wed Dec 05 14:56:55 GMT+00:00 2007, Uncontrolled Copy, (c) BSI,. BSI 2007 ?i,BS 919-1:2007,Contents,Foreword iii,1 Scope 1,2 Normative references 1,3 Terms and definitions and symbols 1,4 Design 2,5 Tolerances and thread forms 3,6 Marking 25,Annexes,Annex A (informative) Verifying conformity with BS 1580 26,Annex B (informative) Conventional illustration of tolerance zones 34,Annex C (informative) Effective diameter equivalent of pitch and angle,errors 34,Annex D (informative) A system of gauging for screw threads before,and after coating 37,Annex E (informative) Setting to size of adjustable screw ring,gauges 40,Annex F (informative) Comparison between the designations of British,and American gauges 42,Annex G (informative) Tolerances for major, effective and minor,diameters and flank angle and pitch 43,Annex H (informative) Hardness 44,Bibliography 45,List of figures,Figure 1 – Disposition of effective diameter tolerance zones for screw,gauges 18,Figure 2 – Thread forms of GO gauges 20,Figure 3 – Thread forms of NOT GO gauges 21,Figure 4 – Forms of thread for NOT GO effective diameter screw,gauges 22,Figure 5 – Thread forms of setting plugs 24,Figure B.1 – Limits and tolerances for the effective diameters of,internal and external threads 34,List of tables,Table 1 – Tolerances for GO screw plug gauges – all classes 5,Table 2 – Tolerances for NOT GO screw plug gauges – all classes 6,Table 3 – Tolerances for GO and NOT GO plain plug gauges for minor,diameters 7,Table 4 – Tolerances for GO screw ring gauges – solid type, all,classes 7,Table 5 – Tolerances for NOT GO effective diameter screw ring,gauges – solid type, all classes 8,Table 6 – Tolerances for GO screw check plugs for GO screw ring,gauges – solid type 8,Table 7 – Tolerances for NOT GO effective diameter check plugs for,new GO screw ring gauges – solid type 9,Licensed Copy: London South Bank University, London South Bank University, Wed Dec 05 14:56:55 GMT+00:00 2007, Uncontrolled Copy, (c) BSI,BS 919-1:2007,ii ?. BSI 2007,Table 8 – Tolerances for NOT GO effective diameter check plugs for,worn GO ring screw gauges – solid type 9,Table 9 – Tolerances for GO screw check plugs for NOT GO effective,diameter ring gauges – solid type 10,Table 10 – Tolerances for NOT GO screw check plugs for NOT GO,effective diameter ring gauges – solid type 10,Table 11 – Tolerances for GO and NOT GO plain check plugs for the,minor diameters of GO and NOT GO screw ring gauges – solid type 10,Table 12 – Tolerances for adjustable GO screw ring and calliper gauges,for all classes 11,Table 13 – Tolerances for adjustable NOT GO screw ring and calliper,gauges for all classes 12,Table 14 – Tolerances for double length setting plugs for adjustable GO,screw ring gauges 13,Table 15 – Tolerances for double length setting plugs for adjustable,NOT GO screw ring gauges 14,Table 16 – Tolerances for single length setting plugs for adjustable GO,screw calliper gauges 15,Table 17 – Tolerances for single length setting plugs for adjustable,NOT GO screw calliper gauges 15,Table 18 – Tolerances for GO and NOT GO plain calliper (GAP) gauges,for major diameters 16,Table 19 – Constants for use in calculating gauge dimensions,(inch) 17,Table C.1 – Effective diameter equivalents of errors in pitch 35,Table C.2 – Effective diameter equivalents of errors in flank angles 36,Table D.1 – External threads with specified allowances which have to,be maintained after coating – Unified threads, Class 1A 38,Table D.2 – External screw threads with specified allowances (in the,uncoated condition) which can be absorbed by the coating – Unified,threads, Class 2A 38,Table D.3 – External screw threads with no specified allowance –,Unified threads, Class 3A 39,Table D.4 – Unified threads, Cl……
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