1、BRITISH STANDARD CONFIRMED JUNE1988 BS3529:1962 Specification for Dimensions of flywheel housing mounting padsand brackets forI.C.enginesBS3529:1962 This BritishStandard, having been approved by the MechanicalEngineering IndustryStandards Committee and endorsed by the Chairman ofthe Engineering Divi
2、sional Council, was published under theauthority of the GeneralCouncil on 30July1962 BSI02-2000 The following BSI references relate to the work on this standard: Committee referencesMEE/137 andMEE/137/2 Draft for commentCZ(MEE)4308 ISBN 0 580 34358 8 Co-operating organizations The Mechanical Enginee
3、ring Industry Standards Committee, under whose supervision this BritishStandard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: The Government department and scientific and industrial organizations marked with an asteri
4、sk in the above list, together with the following, were directly represented on the Committee entrusted with the preparation of thisstandard: Admiralty Engineering Equipment Users Association Air Ministry Gas Council Associated Offices Technical Committee High Commission of India Association of Cons
5、ulting Engineers Institute of Marine Engineers (Incorporated) Institute of Petroleum Association of Mining Electrical and Institution of Civil Engineers Mechanical Engineers Institution of Gas Engineers British Chemical Plant Manufacturers Institution of Heating and Ventilating Association Engineers
6、 British Compressed Air Society Institution of Mechanical Engineers British Electrical and Allied Manufacturers Institution of Mechanical Engineers Association* (Automobile Division) British Engineers Association* Institution of Production Engineers British Gear Manufacturers Association Locomotive
7、and Allied Manufacturers British Internal Combustion Engine Association of Great Britain Manufacturers Association* Machine Tool Trades Association British Iron and Steel Federation Ministry of Labour (Factory Inspectorate) British Railways, The British Transport Ministry of Power Commission Ministr
8、y of Transport Crown Agents for Oversea Governments and Ministry of Works Administrations National Coal Board D.S.I.R. National Engineering Laboratory National Physical Laboratory (D.S.I.R.) Electricity Council, The Generating Board and Radio Industry Council the Area Boards in England and Wales War
9、 Office* British Cycle and Motor Cycle Industries Diesel Engineers and Users Association Association Ltd. Society of Motor Manufacturers and Traders British Internal Combustion Engine Research Limited Association Amendments issued since publication Amd. No. Date CommentsBS3529:1962 BSI 02-2000 i Con
10、tents Page Co-operating organizations Inside front cover Foreword ii 1 Scope 1 Section 1. Flywheel housing mounting pads 2 Pad face dimensions and diameters, depths and location dimensions oftapped holes 1 3 Pad location 1 4 Combined pads 1 5 Engine mounting pads in locations other than those specif
11、ied above 1 6 Mounting registers 1 Section 2. Engine mounting brackets 7 Dimensions 3 8 Bracket (or other) fixings 3 Figure 1 Diagram of flywheel housing mounting pads (high) 2 Figure 2 Diagram of flywheel housing mounting pads (low) 2 Figure 3 Diagram of mounting register (lip) 4 Figure 4 Diagram o
12、f mounting bracket 4 Table 1 Mounting pads, registers and brackets 5 Table 1M Dimensions of mounting pads, registers and brackets 6BS3529:1962 ii BSI 02-2000 Foreword This standard makes reference to the following BritishStandards: BS1580, Unified screw threads (with metric equivalents). BS1768, Uni
13、fied precision hexagon bolts, screws and nuts (UNC and UNFthreads) normal series. BS2693, Screwed studs. BS3092, Dimensions of main friction clutches, main power-take-off assemblies, and associated attachments for i.c. engines. This BritishStandard has been prepared under the authority of the Mechan
14、ical Engineering Industry Standards Committee to assist engine manufacturers and users by specifying certain features of engine mountings applied to flywheel housings. The mounting dimensions specified are related not in any way to the size or power of the engines concerned, but to the flywheel hous
15、ings, some dimensions of which are specified in BS3092, “Dimensions of main friction clutches, main power-take-off assemblies, and associated attachments for i.c.engines”. The BritishStandard pad numbers allocated to the range of pad sizes inTable 1 of this standard are related to the flywheel housi
16、ng code numbers ofBS3092, Table17, and, although it is generally intended that pads should be used on flywheel housings with matching code numerals, pads of a given size maybe matched with housings with larger code numerals (i.e.smaller sizes.) However, in respect of the recommended use of these pad
17、s in engine locations other than flywheel housings (Clause5), it is left to engine designers in cooperation with engine purchasers or manufacturers of overall installations to select from the data specified in this standard which form and size of mountings shall be applied to any particular engine.
18、The standard is based on SAE practice for mounting pads set out in the SAE Handbook(1960) and consists of the following sections: Section1, “Flywheel housing mounting pads”, which gives dimensions of flywheel housing mounting pads; and Section2, “Engine mounting brackets”, which gives dimensions of
19、brackets for attachment to the pads specified in Section1, for bearer mounted type engines only. Such differences as exist between the present standard and the information contained in the SAE Handbook(1960) are to permit a range of pads having a sizeprogression. NOTEWhere metric equivalents are sta
20、ted (see Table 1M) the figures in British units are to be regarded as the standard. The metric conversions are approximate. More accurate conversions should be based on BS350, “Conversion factors and tables”. A British Standard does not purport to include all the necessary provisions of a contract.
21、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, pagesi andii, pages1 to6, an inside back cover and a
22、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.BS3529:1962 BSI 02-2000 1 1 Scope Section1 of this standard specifies mounting pad face dimensions and pad location dimens
23、ions with respect to horizontal and vertical centre lines of vertical pads located above and below the flywheel horizontal centre line (“high” and “low” pads) for the rear end mounting of i.c. engines with or without the use of the brackets specified in Section2. It also specifies diameters and loca
24、tion dimensions of tapped holes in these pads. Section2 of this standard specifies certain dimensions of brackets designatedB1,B2 andB3, which, when secured to the mounting pads specified in Section1, Clauses2 and3, form engine support arms. It is recommended that if these brackets can be used with
25、pads in other locations as outlined in Clause5, the requirements of Section1 of this standard be adopted wherever possible. Section 1. Flywheel housing mountingpads 2 Pad face dimensions and diameters, depths and location dimensions of tapped holes a) Face dimensions of mounting pads shall be relate
26、d to flywheel housings with equal or largercode numerals, (e.g.in Columns1 and2 ofTable 1 padP3 is normally related to housingH3; it may be used when convenient with housingsH4,H5 etc. but not with housingH2 orbelow). These face dimensions of the mounting pads together with diameters and location di
27、mensions of tapped holes shall be as specified inFigure 1 and Figure 2 and in Columns3,4,5 and6 of Table 1. b) Tapped hole depths shall be such that the minimum length of thread engagement in ferrous flywheel housings shall be1.5 times the nominal diameter specified. When aluminium alloy flywheel ho
28、usings are used, it is recommended that this proportion be increased to1.75 times the nominal diameter specified. 3 Pad location a) “High” and “low” pad faces shall be parallel to the vertical centre line and shall be displaced from it by the distance F in Figure 1 and Figure 2 and Column8, Table 1.
29、 b) “High” pads shall be above the horizontal centre line by a distance such that the dimensionD from the centre line to the lower tapped holes shall be as specified in Figure 1 andColumn6, Table 1. c) “Low” pads shall be below the horizontal centre line by a distance such that the dimensions D from
30、 the centre line to the upper tapped holes shall be as specified in Figure 2 and Column6,Table 1. 4 Combined pads It is recommended that wherever possible flywheel housings embody pads combining dimensions for both “high” and “low” pads (Clauses2 and3), such that either “high” or “low” positions may
31、 be accommodated. 5 Engine mounting pads in locations other than those specified above It is recommended that if engine mounting pads areused on locations other than on flywheel housings, their face dimensions be selected from dimensions A, B and C specified in Columns3,4 and5 of Table 1, it being l
32、eft to engine designers, in co-operation with engine purchasers or manufacturers of overall installations, to match the pad sizes used with the particular applications involved. These pads can be used with the brackets specified in Section2 and in other instances such as in trunnion and specialized
33、mountings. 6 Mounting registers If mounting registers in the form of “top lips” are applied to the pads for engine support and location, it is recommended that their dimensions conform to those given in Figure 3 and Columns9,10,11 and12 of Table 1.BS 3529:1962 2 BSI 02-2000 Figure 1 Diagram of flywh
34、eel housing mounting pads (high) Figure 2 Diagram of flywheel housing mounting pads (low)BS3529:1962 BSI 02-2000 3 Section 2. Engine mounting brackets 7 Dimensions Principal dimensions affecting interchangeability of brackets shall be as given in Figure 4 and Columns1318 inclusive of Table 1. 8 Brac
35、ket (or other) fixings Brackets (or other fixings) shall be secured to engine flywheel housings by precision bolts or screws selected from BS1768 1)to suit the tapped holes specified in Table 1. The use of studs to BS2693 2)is, however, not precluded. In this case the decision for the class of tappe
36、d holes shall be made by agreement between the engine manufacturers and user. In no case shall the tolerance of the tapped holes exceed UNC Class2B tolerances specified in BS1580 3) . 1) BS1768, “Unified precision hexagon bolts, screws and nuts (UNC and UNF threads) normal series”. 2) BS2693, “Screw
37、ed studs”. 3) BS1580, “Unified screw threads (with metric equivalents)”.BS 3529:1962 4 BSI 02-2000 Figure 3 Diagram of mounting register (lip) Figure 4 Diagram of mounting bracketBS 3529:1962 BSI 02-2000 5 Table 1 Mounting pads, registers and brackets (All dimensions are in inches) 1 2 3 4 5 6 7 8 9
38、 10 11 12 13 14 15 16 17 18 19 BS pad No. BS flywheel housing No. (BS3092) Dimensions of “high” and “low” mountingpads (see Figure 1 and Figure 2) Dimensions of mounting register (seeFigure 3) Dimensions of mounting brackets (seeFigure 4) BS bracket No. (UNC Class2B BS1580) C A B D E F X N G H J K L
39、 M max. min. max. min. max. P00 H00 3 1 / 2 4 1 / 2 5 / 8 11 3 / 4 1 17 7 / 8 0.760 0.750 6.010 6.000 21 / 32 2 1 / 8 7 / 8 1 1 / 4 25 / 32 4 1 / 4 1 P0 H0 3 1 / 2 4 1 / 2 5 / 8 11 3 / 4 1 14 1 / 2 0.760 0.750 6.010 6.000 21 / 32 2 1 / 8 7 / 8 1 1 / 4 25 / 32 4 1 / 4 P1 H1 2 1 / 2 3 1 / 2 5 / 8 11 3
40、 / 4 1 11 1 / 4 0.760 0.750 5.010 5.000 21 / 32 2 1 / 8 7 / 8 1 1 / 4 25 / 32 3 1 / 4 2 P2 H2 2 1 / 2 3 1 / 2 5 / 8 11 3 / 4 1 10 1 / 4 0.760 0.750 5.010 5.000 21 / 32 2 1 / 8 7 / 8 1 1 / 4 25 / 32 3 1 / 4 P3 H3 2 2 5 / 8 1 / 2 13 5 / 8 1 10 1 / 4 0.635 0.625 3.885 3.875 17 / 32 2 7 / 8 1 1 / 8 21 /
41、 32 2 1 / 2 3 P4 H4 2 2 5 / 8 1 / 2 13 5 / 8 1 8 3 / 8 0.635 0.625 3.885 3.875 17 / 32 2 7 / 8 1 1 / 8 21 / 32 2 1 / 2 P5 H5 2 2 5 / 8 1 / 2 13 5 / 8 1 8 3 / 8 0.635 0.625 3.885 3.875 17 / 32 2 7 / 8 1 1 / 8 21 / 32 2 1 / 2 P6 H6 2 2 5 / 8 1 / 2 13 5 / 8 1 7 3 / 8 0.635 0.625 3.885 3.875 17 / 32 2 7
42、 / 8 1 1 / 8 21 / 32 2 1 / 2 BS 3529:1962 6 BSI 02-2000 Table 1M Dimensions of mounting pads, registers and brackets (All dimensions are in millimetres) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 BS pad No. BS flywheel housing No. (BS3092) Dimensions of “high” and “low” mountingpads (seeFigure
43、1 and Figure 2) Dimensions of mounting register (seeFigure 3) Dimensions of mounting brackets (seeFigure 4) BS bracket No. (UNC Class2B BS1580) C A B D E F X N G H J K L M nom. nom. max. P00 H00 88.9 114.3 19.1 25.4 454.0 19.1 152.4 16.7 54.0 22.2 31.8 19.8 108.0 1 P0 H0 88.9 114.3 19.1 25.4 368.3 1
44、9.1 152.4 16.7 54.0 22.2 31.8 19.8 108.0 P1 H1 63.5 88.9 19.1 25.4 285.8 19.1 127.0 16.7 54.0 22.2 31.8 19.8 82.6 2 P2 H2 63.5 88.9 19.1 25.4 260.4 19.1 127.0 16.7 54.0 22.2 31.8 19.8 82.6 P3 H3 50.8 66.7 15.9 25.4 260.4 15.9 98.4 13.5 50.8 22.2 28.6 16.7 63.5 3 P4 H4 50.8 66.7 15.9 25.4 212.7 15.9
45、98.4 13.5 50.8 22.2 28.6 16.7 63.5 P5 H5 50.8 66.7 15.9 25.4 212.7 15.9 98.4 13.5 50.8 22.2 28.6 16.7 63.5 P6 H6 50.8 66.7 15.9 25.4 187.3 15.9 98.4 13.5 50.8 22.2 28.6 16.7 63.5 BS3529:1962 BSI 02-2000 British Standards The following are available on application: YEARBOOK Including subject index an
46、d numerical list of BritishStandards SECTIONAL LISTS.Gratis Acoustics Aircraft materials and components Building materials and components Chemical engineering Chemicals, fats, oils, scientific apparatus, etc. Cinematography and photography Coal, coke and colliery requisites Codes of Practice Consume
47、r goods Documentation, including Universal Decimal Classification Drawing practice Electrical engineering Farming, dairying and allied interests Furniture, bedding and furnishings Gas and solid fuel Glassware including scientific apparatus Hospital equipment Illumination and lighting fittings Iron a
48、nd steel Mechanical engineering Nomenclature, symbols and abbreviations Non-ferrous metals Packaging and containers Paints, varnishes and colours for paints Personal safety equipment Petroleum industry Plastics Printing, paper and stationery Road engineering Rubber Shipbuilding Textiles and clothing
49、 WeldingBS3529:1962 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the c
