BS-AU-50-4.4.1A-1995 ISO-4251-3-1994.pdf
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1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 50-4.1a: 1995 ISO 4251-3: 1994 Tyres and wheels Part 4: Rim profiles and dimensions Section 4: Agricultural tractor and machine rims Subsection 4.1a Specification for ply-rating marked series rims Licensed Copy: London South Bank University, London South Bank
2、 University, Sat Dec 09 03:40:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-4.1a:1995 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 effect on 15 October 1995 BSI 08-199
3、9 First published January 1992 Second edition October 1995 The following BSI references relate to the work on this standard: Committee reference AUE/4 Draft for comment 92/72856 DC ISBN 0 580 24756 2 Committees responsible for this British Standard The preparation of this British Standard was entrus
4、ted to Technical Committee AUE/4, Tyres and wheels for road 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 Associa
5、tion Confederation of 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 Asso
6、ciation Road Haulage 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 03:40:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-4.1a:1995
7、BSI 08-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Normative references1 3Rim diameter and circumferences1 4Rim contours and valve holes1 5Rim knurling9 Annex A (normative) Rim diameter measurements10 Annex B (informative) Rims with nominal diameter code
8、s 15.3 and 16.111 Annex C (informative) Bibliography13 Figure 1 Specified rim diameter2 Figure 2 Contour of W and DW rims2 Figure 3 Contour of DH rims4 Figure 4 Location of valve holes in DH rims5 Figure 5 Contour of other drop-centre rims5 Figure 6 Optional location of 15.7 mm valve hole7 Figure 7
9、Location of valve hole in corner of well7 Figure 8 Contour of semi-drop-centre rims7 Figure 9 Location of valve holes in SDC rims8 Figure 10 Contour of divided rims8 Figure 11 Rim knurling9 Figure A.1 Specified rim diameter and mandrel diameter11 Table 1 Rim diameters1 Table 2 Dimensions of W and DW
10、 rims3 Table 3 Dimensions of DH rims4 Table 4 Dimensions of other drop-centre rims6 Table 5 Dimensions of SDC rims8 Table 6 Dimensions of divided rims8 Table A.1 Mandrel dimensions10 Table B.1 Dimensions of rim size W11C11 Table B.2 Dimensions of rims size 9.0012 List of referencesInside back cover
11、Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:40:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-4.1a:1995 ii BSI 08-1999 National foreword This Subsection of this Part of BS AU 50 has been prepared by Technical Committee AUE/4 and is identical to IS
12、O 4251-3:1994, Tyres (ply-rating marked series) and rims for agricultural tractors and machines Part 3: Rims, published by the International Organization for Standardization (ISO). It supersedes BS AU 50-4.1:1991 which is withdrawn. The corresponding tyre details are dealt with in Part 1 (Subsection
13、 4.1a). Other Parts of the Standard are: Part 1: Tyres; Part 2: Wheels and rims; Part 3: Valves. Part 4 of BS AU 50 (rim profiles and dimensions) was introduced to assist cross-referencing between tyre specifications and the corresponding rim specifications. Subsections of Part 4 successively supers
14、eded the information contained in BS AU 50-2.1b:1980, which is consequently withdrawn in 1995. The Technical Committee has reviewed the provisions of ISO 4000-2:19871), to which normative reference is made in the text, and has decided that they are acceptable for use in conjunction with this standar
15、d. 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. Summary of pages This document compris
16、es a front cover, an inside front cover, pages i and ii, pages 1 to 14, 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. Cross-references Inter
17、national StandardCorresponding British Standard BS AU 50 Tyres and wheels Part 4 Rim profiles and dimensions Section 2 Commercial vehicle rims ISO 4209-2:1993Subsection 2.1 Specification for metric series rims (Identical) 1) ISO 4000-2:1987 is superseded by ISO 4000-2:1994 which is identical with BS
18、 AU 50-4.1.1:1992 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:40:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-4.1a:1995 BSI 08-19991 1 Scope This part of ISO 4251 sets out rim dimensions for tyres of the ply rating marked series for agricultural
19、 tractors and machines. Tyre designation and dimensions, load ratings and tyre classification and nomenclature are given in ISO 4251-1, ISO 4251-2 and ISO 4251-4 respectively. The rims specified in this part of ISO 4251 may also be used for the tyres specified in ISO 7867-12 and ISO 86643. All dimen
20、sions in this part of ISO 4251 are given in millimetres. NOTE 1Terms used are in accordance with ISO 3911:19771. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 4251. At the time of publication, the ed
21、itions 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 possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently va
22、lid International Standards. ISO 4000-2:1987, Passenger car tyres and rims Part 2: Rims. ISO 4209-2:1993, Truck and bus tyres and rims (metric series) Part 2: Rims. 3 Rim diameters and circumferences Nominal rim diameter codes DR are as shown in Table 1 related to the specified rim diameter given in
23、 Figure 1. For rim diameter measurements, see Annex A. A tolerance of 1,2 mm on the rim circumference is permitted. 4 Rim contours and valve holes 4.1 Drop-centre W and DW rims Dimensions and tolerances of drop-centre W and DW rims shall be as given in Table 2 and shown in Figure 2. The valve hole s
24、hall have a diameter of 15,7 mmmm and may be on either side of the rim. The nominal valve seat angle is 30 5. To provide for valve-to-vehicle clearance, optional valve seat angles of 45 maximum are permissible. For any angle selected for a given rim, the tolerance is 5. 4.2 Drop-centre DH rims Dimen
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