1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 214-3:1988 ISO7647:1986 Gearbox flanges Part3: Specification for dimensions for type S gearbox flanges for commercial vehicles and buses ISO title: Commercial vehicles and buses Gearbox flanges Type S UDC629.114.4/.53:621.825.24BSAU214-3:1988 This BritishStan
2、dard, having been prepared under the directionof the Automobile Standards Committee, was published under the authority ofthe Board of BSI and comesintoeffect on 29January1988 BSI02-2000 The following BSI references relate to the work on this standard: Committee reference AUE/13 Draft for comment82/7
3、5549 DC ISBN 0 580 16365 2 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by the Automobile Standards Committee (AUE/-) to Technical Committee AUE/13, upon which the following bodies were represented: British Railways Board Department of Transpo
4、rt (Highways) Freight Transport Association Institute of Road Transport Engineers (Incorporated) London Regional Transport Ministry of Defence National Bus Company Road Haulage Association Ltd. Society of Motor Manufacturers and Traders Limited Amendments issued since publication Amd. No. Date of is
5、sue CommentsBSAU214-3:1988 BSI 02-2000 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope and field of application 1 2 References 1 3 Dimensions and tolerances 1 4 Designation 1 Figure 1 1 Figure 2 2 Figure 3 2 Table Dimensions and tolerances 3 Publications referr
6、ed to Inside back coverBSAU214-3:1988 ii BSI 02-2000 National foreword This BritishStandard has been prepared under the direction of the Automobile Standards Committee and is identical with ISO7647:1986 “Commercial vehicles and buses Gearbox flanges Type S”, published by the International Organizati
7、on for Standardization (ISO). Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a BritishStandard without deviation. Some terminology and certain conventions are not identical with those used in BritishStandards; attention is drawn e
8、specially to the following. The comma has been used as a decimal marker. In BritishStandards it is current practice to use a full point on the baseline as the decimal marker. Wherever the words “International Standard” appear, referring to this standard, they should be read as “BritishStandard”. The
9、 Technical Committee has reviewed the provisions of ISO1101:1983 to which reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A related BritishStandard to ISO1101 is BS308 “Engineering drawing practice” Part3:1972 “Geometrical tolerancin
10、g”. 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-references International Standa
11、rd Corresponding BritishStandard ISO/R286:1962 BS4500 ISO Limits and fits Part1:1969 General, tolerances and deviations (Technically equivalent) ISO7646:1986 BS AU214 Gearbox flanges Part2:1987 Specification for dimensions for type A gearbox flanges for commercial vehicles and buses (Identical) Summ
12、ary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to4, 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
13、cover.BSAU214-3:1988 BSI 02-2000 1 1 Scope and field of application This International Standard specifies the nominal dimensions and tolerances which affect the interchangeability between gearbox flanges and mating parts used on commercial vehicles and buses. The flanges covered by this Internationa
14、l Standard are designated type S. They are not interchangeable with type A flanges dealt with in ISO7646. Dimensions not specified are left to the discretion of the component manufacturer. 2 References ISO286, ISO system of limits and fits 1) . ISO1101, Technical drawings Geometrical tolerancing Tol
15、erancing of form, orientation, location and run-out Generalities, definitions, symbols, indications on drawings. ISO7646, Road vehicles Gearbox flanges for commercial vehicles and buses Type A. 3 Dimensions and tolerances Nominal dimensions, tolerances and bolt hole fixing positions which affect the
16、 interchangeability of type S flanges for gearboxes are shown in Figure 1 to Figure 3, and given in the Table. 4 Designation Gearbox flanges meeting the requirements of this International Standard shall be identified by the following details in the order specified: a) reference to this International
17、 Standard; b) the size code (see Table); c) the number of fixing bolts; d) the size of the fixing bolts. Example: Designation of a gearbox flange type S with size code1500 and four14mm fixing bolts: Flange ISO76471500 4 14 1) At present at the stage of draft. (Revision of ISO/R286:1962.) Figure 1 BS
18、AU214-3:1988 2 BSI 02-2000 Figure 2 Figure 3 BSAU214-3:1988 BSI 02-2000 3 Table Dimensions and tolerances Dimensions in millimetres Size code Figure number d 1 Number of holes d 5 d 2 d 3 H7 a d 4 b l h 1100 1 87 4 8,1 69,85 57,10 56,4 8 2,0 1300 1 97 4 10,1 79,37 60,32 62,2 8 2,3 1400 1 116 4 12,1
19、95,25 69,85 76 8 2,3 1500 1 151 4 14,1 120,65 95,25 98,4 10 2,3 1510 1 146 4 12,1 120,65 95,25 101,4 10 2,3 1600 2 175 8 10,1 155,57 168,22 138,4 11 1,5 1700 2 203 8 10,1 184,15 196,86 167 11 1,5 1800 3 203 12 10,1 184,15 196,86 167 11 1,5 a See ISO286. b This dimension shall be used when required t
20、o prevent bolt heads from rotating. +0,2 0 0 0,2 0 0,5 +0,2 04 blankBSAU214-3:1988 BSI 02-2000 Publications referred to See national foreword.BSAU 214-3:1988 ISO7647:1986 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for prep
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