1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 4250-3:2011Earth-mover tyres and rimsPart 3: RimsBS ISO 4250-3:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 4250-3:2011. Its
2、upersedes BS ISO 4250-3:2006 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee AUE/4, Tyres and wheels for motor vehicles.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to
3、 include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 68399 2ICS 53.100; 83.160.99Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStand
4、ards Policy and Strategy Committee on 31 May 2011.Amendments issued since publicationDate Text affectedBS ISO 4250-3:2011Reference numberISO 4250-3:2011(E)ISO 2011INTERNATIONAL STANDARD ISO4250-3Fourth edition2011-05-01Earth-mover tyres and rims Part 3: Rims Pneumatiques et jantes pour engins de ter
5、rassement Partie 3: Jantes BS ISO 4250-3:2011ISO 4250-3:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm
6、, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 A
7、ll rights reservedBS ISO 4250-3:2011ISO 4250-3:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Rim identification 1 5 Rim contours .2 6 Rim knurling.2 7 Rim loads and inflation pressures.2 8 Rim dimensions
8、.2 Annex A (informative) Sealing ring grooves and O-rings for earth-mover rims 11 Bibliography13 BS ISO 4250-3:2011ISO 4250-3:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bo
9、dies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental an
10、d non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives,
11、 Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies cas
12、ting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 4250-3 was prepared by Technical Committee ISO/TC 31, Tyres, rims and valves, Subcom
13、mittee SC 6, Off-the-road tyres and rims. This fourth edition cancels and replaces the third edition (ISO 4250-3:2006), which has been technically revised. ISO 4250 consists of the following parts, under the general title Earth-mover tyres and rims: Part 1: Tyre designation and dimensions Part 2: Lo
14、ads and inflation pressures Part 3: Rims BS ISO 4250-3:2011ISO 4250-3:2011(E) ISO 2011 All rights reserved vIntroduction ISO 4250 consists of three parts (ISO 4250-1, ISO 4250-2 and this part of ISO 4250) that lay down the technical elements relating to designation and dimensions of tyres and rims f
15、or earth-moving machinery. It also provides load tables for these tyres. BS ISO 4250-3:2011BS ISO 4250-3:2011INTERNATIONAL STANDARD ISO 4250-3:2011(E) ISO 2011 All rights reserved 1Earth-mover tyres and rims Part 3: Rims 1 Scope This part of ISO 4250 sets out the designation, contours and dimensions
16、 for rims for narrow- and wide-base off-road tyres primarily intended for earth-moving machinery. All dimensions in this part of ISO 4250 are given in millimetres and are applicable to the side of the rim which is in contact with the tyre. Tyre designations and dimensions, tyre classifications and n
17、omenclature are given in ISO 4250-1, ISO 10571 and ISO 13442. Annex A gives details on sealing ring grooves and O-rings for earth-mover rims. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited
18、 applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3911, Wheels and rims for pneumatic tyres Vocabulary, designation and marking 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 3911
19、 apply. 4 Rim identification 4.1 Codes shall be used to identify: a) specified rim diameter, D (see Table 7); b) nominal width between flanges; c) nominal flange height or rim profile designations. BS ISO 4250-3:2011ISO 4250-3:2011(E) 2 ISO 2011 All rights reserved4.2 The rim marking shall consist o
20、f codes for: a) specified rim diameter, D; b) nominal width between flanges. The markings shall be on the weather side of the rim and visible when the tyre is mounted on the rim. Where a disk is fitted by the rim/wheel manufacturer, the marking shall appear on either the disc or the rim base. Loose
21、flanges shall be marked on an externally visible surface. The marking shall indicate nominal height and nominal diameter. 5 Rim contours Rim contours are given in Figures 1 to 5 and Tables 1 to 5. 6 Rim knurling If rim knurling is required, details can be found in Figure 6 and Table 6. 7 Rim loads a
22、nd inflation pressures The load and inflation pressure imposed on the rim and wheel shall not exceed the rim and wheel manufacturers recommendations, even though the tyre may be approved for a higher load or inflation pressure. Consult the rim and wheel manufacturer to determine if rim and wheel cap
23、acities are adequate for the intended service. 8 Rim dimensions Rim dimensions are standardized for size and contour, and for particular tyre and rim combinations designed to ensure proper mounting and fit of the tyre to the rim. Where rim dimensions are not available, consult the rim, wheel or tyre
24、 manufacturer. BS ISO 4250-3:2011ISO 4250-3:2011(E) ISO 2011 All rights reserved 3Dimensions in millimetres Key 1 break corner equivalent to R1 min. Flange and bead seat shall be removable on one side. All flange and bead seat dimensions apply to both sides of the rim contour. NOTE This figure appli
25、es to rim diameter codes 24, 25, 29, 33, 35, 39, 45, 49, 51, 57 and 63. (See Table 7 for specific rim diameters.) aFor rim diameter codes 49, D tolerance: 0,40,8+. For rim diameter codes 49, D tolerance: 0,8. The tolerance given for the specified rim diameter, D, is for tyre design purposes only. Th
26、e actual rim measurement by circumference is established by using a mandrel and a tape. b For rim diameter codes 49, DB= (D 25,5) 0,513,0+. For rim diameter codes 51 and 57, DB= (D 51,0) 0,513,0+. For rim diameter code 63, DB= (D 63,5) 13,0. Figure 1 Contours of 5 full tapered bead seat rims BS ISO
27、4250-3:2011ISO 4250-3:2011(E) 4 ISO 2011 All rights reservedTable 1 Contours of 5 full tapered bead seat rims Dimensions in millimetres A G B P R2Rim width code/ flange height codea13,0 2,0 min. min. tol. 11.25/2.0 286,0 51,0 32,5 101,0 32,0 1,5 13.00/2.5 330,0 63,5 45,5 101,0 38,0 1,5 13.00/2.75 33
28、0,0 70,0 48,5 101,0 47,5 1,5 14.00/1.5 355,5 38,1 24,5 51,0 25,0 1,5 15.00/3.0 381,0 76,0 55,0 117,5 44,5 1,5 15.00/3.0b381,0 76,0 55,0 117,5 51,0 2,0 17.00/2.0 432,0 51,0 32,5 101,0 32,0 1,5 17.00/3.5 432,0 89,0 58,0 139,0 51,0 2,0 19.50/2.0 495,5 51,0 32,5 101,0 32,0 1,5 19.50/2.5 495,5 63,5 45,5
29、101,0 38,0 1,5 19.50/4.0 495,5 101,5 66,0 139,0 57,0 2,0 20.00/2.0 508,0 51,0 32,5 101,0 32,0 1,5 22.00/3.0 559,0 76,0 55,0 139,0 44,5 1,5 22.00/3.5 559,0 89,0 76,0 139,0 51,0 2,0 22.00/4.0 559,0 101,5 66,0 139,0 57,0 2,0 22.00/4.5 559,0 114,5 74,0 190,5 63,5 2,0 24.00/3.0 609,5 76,0 55,0 139,0 44,5
30、 1,5 24.00/3.5 609,5 89,0 58,0 139,0 51,0 2,0 24.00/5.0 609,5 127,0 86,5 190,5 70,0 2,0 25.00/3.5 635,0 89,0 58,0 139,0 51,0 2,0 26.00/3.5 660,5 89,0 58,0 139,0 51,0 2,0 26.00/5.0 660,5 127,0 86,5 190,5 70,0 2,0 27.00/3.5 686,0 89,0 58,0 139,0 51,0 2,0 27.00/6.0 686,0 152,5 122,0 190,5 84,0 2,5 28.0
31、0/3.5 711,0 89,0 58,0 139,0 51,0 2,0 28.00/4.0 711,0 101,5 66,0 139,0 57,0 2,0 29.00/3.5 736,5 89,0 58,0 139,0 51,0 2,0 29.00/6.0 736,5 152,5 122,0 190,5 84,0 2,5 31.00/4.0 787,5 101,5 66,0 139,0 57,0 2,0 32.00/4.0 813,0 101,5 66,0 139,0 57,0 2,0 32.00/4.5 813,0 114,5 74,0 139,0 63,5 2,0 32.00/6.0 8
32、13,0 152,5 122,0 139,0 84,0 2,5 32.00/6.5 813,0 165,0 122.0 190,5 70,0 2,0 34.00/5.0 863,5 127,0 86,5 190,5 70,0 2,0 36.00/4.5 914,5 114,5 74,0 139,0 63,5 2,0 36.00/5.0 914,5 127,0 86,5 190,5 70,0 2,0 36.00/6.0 914,5 152,5 122,0 190,5 84,0 2,5 38.00/5.0 965,0 127,0 139,5 190,5 70,0 2,0 40.00/4.5 1 0
33、16,0 114,5 74,0 190,5 63,5 2,0 44.00/5.0 1 117,5 127,0 139,5 190,5 70,0 2,5 44.00/6.0 1 117,5 152,5 122,0 190,5 84,0 2,5 41.00/5.0 1 041,5 127,0 127,0 190,5 70,0 2,0 52.00/6.0 1 321,0 152,5 127,0 254,0 84,0 2,5 aThe rim width code and flange height code are applicable to specific tyre sizes. See ISO
34、 4250-1 for approved rim/tyre combinations. bFor rim diameter code 49.BS ISO 4250-3:2011ISO 4250-3:2011(E) ISO 2011 All rights reserved 5Dimensions in millimetres Key 1 break corner equivalent to R1 min. Flange and bead seat shall be removable on one side. All flange and bead seat dimensions apply t
35、o both sides of the rim contour. NOTE This figure applies to rim diameter code 25. (See Table 7 for specified rim diameters.) aThe tolerance given for the specified rim diameter, D, is for tyre design purposes only. The actual measurement by circumference is established by using a mandrel and a tape
36、. bFor rims 8.50/1.3 and 10.00/1.5, D tolerance: 0,56,5+. For larger rims, D tolerance: 0,513,0+. Figure 2 Contours of 5 full tapered bead seat rims Table 2 Contours of 5 full tapered bead seat rims Dimensions in millimetres A G B P R2R3Rim width code/ flange height code tol. tol. min. min. 1,5 max.
37、 8.50/1.3 216,0 5,0 33,0 1,5 25,5 50,0 23,0 8,0 10.00/1.5 254,0 5,0 38,0 1,5 28,0 59,0 25,5 8,0 12.00/1.3 305,0 6,5 33,0 1,5 25,5 47,0 23,0 10,0 14.00/1.5 355,5 6,5 38,0 1,5 28,0 59,0 25,5 10,0 17.00/1.7 432,0 13,0 43,0 2,0 25,5 60,0 23,0 8,0 BS ISO 4250-3:2011ISO 4250-3:2011(E) 6 ISO 2011 All right
38、s reservedDimensions in millimetres Key 1 break corner equivalent to R1 min. Flange and bead seat shall be removable on one side. All flange and bead seat dimensions apply to both sides of the rim contour. NOTE This figure applies to rim diameter codes 24 and 25. (See Table 7 for specified rim diame
39、ters.) aThe tolerance given for the specified rim diameter, D, is for tyre design purposes only. The actual rim measurement by circumference is established using a mandrel and a tape. Figure 3 Contours of semi-drop-centre rims Table 3 Contours of semi-drop-centre rims Dimensions in millimetres A G B
40、 P H R2Rim width code/ flange height code tol. 1,5 min. min. min. 1,5 Rim diameter code 8.00 TG 203,0 3,5 35,5 17,5 47,0 6,5 16,5 24 10.00 VA 254,0 5,0 43,0 25,5 59,0 11,0 23,0 24 12.00/1.3 305,0 6,5 33,0 25,5 47,0 7,0 23,0 25 14.00/1.3 355,5 6,5 33,0 25,5 47,0 7,0 23,0 25 BS ISO 4250-3:2011ISO 4250
41、-3:2011(E) ISO 2011 All rights reserved 7Dimensions in millimetres Key 1 break corner equivalent to R1 min. NOTE This figure applies to rim diameter codes 56.5 and 59.5. (See Table 7 for specified rim diameters.) aThe tolerance given for the specified rim diameter, D, is for tyre design purposes onl
42、y. The actual rim measurement by circumference is established using a mandrel and a tape. bThe tyre-mounting side is that side of the rim to which dimension M applies. Figure 4 Contours of 15 drop-centre rims Table 4 Contours of 15 drop-centre rims Dimensions in millimetres A B HaLaMaP R2R3R4R5aRim
43、width code 10,0 min. max. min. max. max. 20.0 508,0 57,0 109,5 106,0 201,5 120,5 32,0 19,5 44,5 32,0 21.0 533,0 57,0 109,5 106,0 201,5 120,5 32,0 19,5 44,5 32,0 22.0 559,0 57,0 109,5 157,0 201,5 120,5 32,0 19,5 44,5 32,0 23.5 597,0 66,5 131,5 111,0 248,0 152,0 41,0 25,5 48,0 38,5 27.0 686,0 66,5 131
44、,5 200,0 248,0 152,0 41,0 25,5 48,0 38,5 aThese dimensions comprise the minimum well envelope for tyre-mounting purposes. BS ISO 4250-3:2011ISO 4250-3:2011(E) 8 ISO 2011 All rights reservedDimensions in millimetres Key 1 break corner equivalent to R1 min. NOTE This figure applies to rim diameter cod
45、es 24 and 25. (See Table 7 for specified rim diameters.) aThe tolerance given for the specified rim diameter, D, is for tyre design purposes only. The actual rim measurement by circumference is established by using a mandrel and a tape. bFlange width B includes an edge radius. cThe tyre-mounting sid
46、e is that side of the rim to which dimension M applies. Figure 5 Contours of 5 drop-centre rims Table 5 Contours of 5 drop-centre rims Dimensions in millimetres A G B P HaLaMaR1R2R3R4R5aRim width code/ flange height code tol. 1,5 min. max. min. min. min. max. 3,00+max. min. Rim diameter code 9.00/1.
47、5 228,5 5,0 38,0 25,0 36,0 49,0 48,0 25,5 102,0 14,0 19,0 8,0 22,0 24,0 24 10.00/1.3 254,0 6,0 33,0 25,0 40,0 49,0 45,0 25,5 102,0 12,0 23,0 10,0 17,0 15,0 24 12.00/1.3 305,0 6,5 33,0 25,0 40,0 40,0 45,0 30,0 90,0 12,0 23,0 10,0 17,0 15,0 25 13.00/1.4 330,0 6,5 36,0 25,0 40,0 40,0 48,0 30,0 102,0 12
48、,0 23,0 10,0 17,0 15,0 25 14.00/1.3 355,5 6,5 33,0 25,0 40,0 40,0 45,0 30,0 90,0 12,0 23,0 10,0 17,0 15,0 25 14.00/1.5 355,5 6,5 38,0 27,0 43,0 40,0 52,0 30,0 90,0 12,0 25,5 10,0 17,0 15,0 25 aThese dimensions comprise the minimum well envelope for tyre-mounting purposes. BS ISO 4250-3:2011ISO 4250-
49、3:2011(E) ISO 2011 All rights reserved 9Dimensions in millimetres Key 1 base line 2 knurl envelope 3 crest 4 root Pitch: 1,5 to 5,0 aHeight from crest to root: 0,5 to 1,0. bDepth. cWidth. dOffset: 9,5 to 16,0. eHeight from crest to base line: 0,2. Figure 6 Knurling detail Table 6 Knurling widths Dimensions in millimetres Rim width codes Fixed flange side Removable flange side a) Rim diam
