BS-AU-50-1.4.4B-1992 ISO-4251-5-1992.pdf
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1、BRITISH STANDARD BS AU 50-1-4.4b:1992 ISO 4251-5: 1992 Incorporating Amendment No. 1 to BS AU 50-1-4.4a:1992 (Renumbers the BS as BS AU 50-1-4.4b: 1992), not published separately Tyres and wheels Part 1: Tyres Section 4: Agricultural tractor and machine tyres Subsection 4.4b: Specification for ply r
2、ating marked series tyres for log skidders ICS 65.060.01; 83.160.30 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1-4.4b:1992 This British Standard, having been prepared under the direction of the Au
3、tomobile Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 October 1992 BSI 03-2000 The following BSI references relate to the work on this standard: Committee reference AUE/4 Draft for comment 90/82455 DC ISBN 0 580 21211 4 Committees r
4、esponsible for this British Standard The preparation of this British Standard was entrusted by the Automobile Standards Policy Committee (AUE/-) to Technical Committee AUE/4, upon which the following bodies were represented: Agricultural Engineers Association Automobile Association British Industria
5、l Truck Association British Pressure Gauge Manufacturers Association British Rubber Manufacturers Association Bus and Coach Council Department of Transport Freight Transport Association Institute of Road Transport Engineers (Inc) Motor Cycle Industrys Association of Great Britain Ltd. Motor Industry
6、 Research Association National Tyre Distributors Association Retread Manufacturers Association Road Haulage Association Ltd. Royal Automobile Club Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No.DateComments 10363May 1999Indicated by a sideline in the marg
7、in Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1-4.4b:1992 BSI 03-2000i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Normative references1 3Definitions1 4Mark
8、ing1 5Dimensions and tolerances1 6Tyre load ratings1 7Rims2 8Tubes2 Table 1 Tyre sizes, rim width codes and dimensions1 Table 2 Basic tyre loads (BTL) and corresponding inflation pressures (IP)2 Table 3 Tyre loads at different speeds (load-speed relationship)2 Table 4 Approved rim contours2 List of
9、referencesInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:11:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1-4.4b:1992 ii BSI 03-2000 National foreword This Subsection of this Part of BS AU 50, prepared under the direction of the Au
10、tomobile Standards Policy Committee, is identical with ISO 4251-5:1992 Tyres (ply rating marked series) and rims for agricultural tractors and machines Part 5: Log skidder tyres, published by the International Organization for Standardization (ISO). This edition supersedes BS AU 50-1-4.4a:1992, whic
11、h is withdrawn. BS AU 50 is issued in four Parts: Part 1: Tyres; Part 2: Wheels and rims; Part 3: Valves; Part 4: Rim profiles and dimensions. ISO 4251 cover requirements for tyres and rims for agricultural tractors and machines. Other Parts of ISO 4251 have been implemented as British Standards as
12、Subsections of BS AU 50 as follows: Cross-references The Technical Committee has reviewed the provisions of ISO 4223-1 to which normative reference is made in the text and has decided that they are acceptable for use in conjuction with this standard. A British Standard does not purport to include al
13、l 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. ISO 4251BS AU 50 Part 1: Tyre designations and dimensionsPart 1: Subsection 4.1 Part 2: Ty
14、re load ratingsPart 1: Subsection 4.2 Part 3: RimsPart 4: Subsection 4.1 Part 4: Tyre classification and nomenclaturePart 1: Subsection 4.3 Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standa
15、rd 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 University, Sat Dec 09 02:11:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU
16、50-1-4.4b:1992 BSI 03-20001 1 Scope This part of ISO 4251 sets out the designation, dimensions, load ratings and rim coordination of ply rating marked series of log skidder tyres of diagonal construction. Rim dimensions are given in ISO 4251-3. 2 Normative references The following standards contain
17、provisions which, through reference in this text, constitute provisions of this part of ISO 4251. 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 4251 are encouraged to investigate the possibili
18、ty 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 4251-1:1992, Tyres (ply rating marked seri
19、es) and rims for agricultural tractors and machines Part 1: Tyre designation and dimensions. ISO 4251-3:1985, Tyres and rims (existing series) for agricultural tractors and machines Part 3: Rims. 3 Definitions For the purposes of this part of ISO 4251, the definitions given in ISO 4223-1 and the fol
20、lowing definitions apply. 3.1 logging service tyre special design agricultural tyre suitable for forestry application 3.2 basic tyre load for log skidders maximum load of total vehicle mass with accessories plus load increases due to log winching or grappling loads and mass transfer that is imposed
21、on an individual tyre due to total radial forces during operation 4 Marking The marking of ply rating marked series of tyres for log skidders shall consist of designations of the tyre size and ply rating and the distinctive marking LS; additional information shall be as specified in ISO 4251-1. 5 Di
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