BS-AU-50-1.4.6-1996 ISO-7867-2-1996.pdf
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1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 50-1-4.6:1996 ISO 7867-2: 1996 Tyres and wheels Part 1: Tyres Section 4: Agricultural tractor and machine tyres Subsection 4.6 Specification for service description and load ratings for metric series tyres ICS 43.040.50; 83.160.30 Licensed Copy: London South
2、Bank University, London South Bank University, Sat Dec 09 02:08:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1-4.6:1996 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into e
3、ffect on 15 October 1996 BSI 11-1998 The following BSI references relate to the work on this standard: Committee reference AUE/4 Draft for comment 94/703350 DC ISBN 0 580 26059 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Comm
4、ittee AUE/4, Tyres and wheels for motor vehicles, upon which the following bodies were represented: Agricultural Engineers Association Automobile Association British Industrial Truck Association British Pressure Gauge Manufacturers Association British Rubber Manufacturers Association Confederation o
5、f Passenger Transport UK Department of Transport Freight Transport Association Institute of Road Transport Engineers (Inc) Motor Cycle Industrys Association of Great Britain Ltd. Motor Industry Research Association National Tyre Distributors Association Retread Manufacturers Association Road Haulage
6、 Association Ltd. Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:08:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1-4.6:1996 BSI 11-1998i Conten
7、ts Page Committees responsibleInside front cover National forewordii 1Scope1 2Normative references1 3Definitions1 4Service description1 5Tyre load ratings3 6Reference inflation pressures4 Annex A (informative) Basic tyre loads5 Annex B (informative) Bibliography8 Table 1 Load indices (LI) and tyre l
8、oad-carrying capacities (TLCC)2 Table 2 Speed symbol and reference speed3 Table 3 Load/speed relationship3 Table A.1 Load per tyre at reference speed A2 and inflation pressure “95” series tractor tyres for special cultivation work5 Table A.2 Load per tyre at reference speed A8 and inflation pressure
9、 “80” series tyres5 Table A.3 Load per tyre at reference speed A8 and inflation pressure “75” series tyres5 Table A.4 Load per tyre at reference speed A8 and inflation pressure “70” series tyres6 Table A.5 Load per tyre at reference speed A8 and inflation pressure “65” series tyres7 List of referenc
10、esInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:08:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1-4.6:1996 ii BSI 11-1998 National foreword This Subsection of BS AU 50 has been prepared by Technical Committee AUE/4 and is identic
11、al to ISO 7867-2:1996 Tyres and rims (metric series) for agricultural tractors and machines Part 2: Service description and load ratings, published by the International Organization for Standardization (ISO). BS AU 50 is published in four Parts: Part 1: Tyres; Part 2: Wheels and rims; Part 3: Valves
12、; Part 4: Rim profiles and dimensions. ISO 7867 specifies requirements for metric series tyres and rims for agricultural tractors and machines and ISO 8664 specifies requirements for agricultural tractor drive-wheel tyres. The Technical Committee has reviewed the provisions of ISO 4223-1, to which n
13、ormative reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. 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
14、with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred toCorresponding British Standard BS AU 50 Tyres and wheels Part 1 Tyres Section 4 Agricultural tractor and machine tyres ISO 7867-1:1996Subsection 4.5a:1996 Specification for desi
15、gnations, dimensions, marking and tyre/rim coordination for metric series tyres (Identical) Part 4 Rim profiles and dimensions Section 4 Agricultural tractor and machine rims ISO 4251-3:1994Subsection 4.1a:1995 Specification for ply-rating marked series rims (Identical) Summary of pages This documen
16、t comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, 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:
17、 London South Bank University, London South Bank University, Sat Dec 09 02:08:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1-4.6:1996 BSI 11-19981 1 Scope This part of ISO 7867 establishes the service description, the tyre load ratings in basic and special applications and reference inflat
18、ion pressure increments for the metric series of tyres primarily intended for agricultural tractors and machines. It applies to bias-belted, diagonal and radial tyres mounted on 5 tapered rims, as specified in ISO 4251-3. It also applies to different concepts and types of tyres and rims; in these ca
19、ses, however, appropriate load/speed-curves and reference inflation pressure increments will be established and added. Basic tyre load-carrying capacities for ranges of existing tyres are given in annex A. NOTE 1Designation and marking of the metric series is defined in ISO 7867-1. Code (ply rating)
20、 marked series of tyres and rims for agricultural tractors and machines are specified in ISO 4251-1, ISO 4251-2 and ISO 4251-5. Service description (load index speed symbol) marking of existing series of agricultural tractor-drive-wheel tyres is given in ISO 8664. 2 Normative references The followin
21、g standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 7867. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 7867 are encouraged to inves
22、tigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 4223-1:1989, Definitions of some terms used in the tyre industry Part 1: Pneumatic tyres. ISO 4251-3:1994, Tyres (pl
23、y rating marked series) and rims for agricultural tractors and machines Part 3: Rims. ISO 7867-1:1996, Tyres and rims (metric series) for agricultural tractors and machines Part 1: Tyre designation, dimensions, marking and tyre/rim coordination. 3 Definitions For the purposes of this part of ISO 786
24、7, the definitions given in ISO 4223-1 and ISO 7867-1 apply. 4 Service description The service description shall be indicated as follows: 4.1 Load index The load index is a numerical code associated with a maximum load a tyre can carry at the speed indicated by its speed symbol under service conditi
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