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GB/T 31961-2015 English PDF (GBT31961-2015)

GB/T 31961-2015 English PDF (GBT31961-2015)

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GB/T 31961-2015: Rims for truck-bus

This Standard specifies the specification, contour, and size of the rims matching the truck and bus wheel and tyres.
GB/T 31961-2015
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 83.160.10
G 41
Rims for Truck-Bus
[ISO 4209-2.2012, Truck and Bus Tyres and Rims (Metric Series) ?€?
Part 2. Rims, MOD]
ISSUED ON. SEPTEMBER 11, 2015
IMPLEMENTED ON. AUGUST 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Rim contour size code ... 4
5 5?? Drop Center Rim (5?? DC) ... 6
6 15?? Drop Center Rim (15?? DC) ... 10
7 Other Rim Contours ... 15
Appendix A (Informative) Comparison List of Clause Number between this
Standard and ISO 4209-2.2012 ... 16
Appendix B (Informative) Semi-Drop Center Rim, 5?? Flat Base Rim, and Flat Base Rim ... 17
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard uses the redrafting method to modify and adopt ISO 4209-2.2012 Truck and Bus Tyres and Rims (Metric Series) ?€? Part 2. Rims.
Compared with ISO 4209-2.2012, the structure of this Standard has been adjusted; and the clause number comparison list between this Standard and ISO 4209-2.2012 has been listed in the Appendix A.
Compared with ISO 4209-2.2012, this Standard has the technical difference, which mainly, for the benefit of the use, increases the rim contour size code (see Chapter 4); for adapting China?€?s national conditions, increases the Appendix B; whereof it mainly indicates the bias tyre which is used more in China currently, and the specification of rim supported by British Standard tyre; the modification against the graphics marks is consistent with that of the matching standards.
This Standard makes the following editorial changes.
--- Change the standard name;
--- Delete the bibliography.
This Standard was proposed by China Petroleum and Chemical Industry Federation. This Standard shall be under the jurisdiction of National Technical Committee for Standardization of Tyre and Rim (SAC/TC 19).
Drafting organizations of this Standard. Tianjin Jiurong Wheel Tech Co., Ltd., Shandong Shengtai Wheel Co., Ltd., Shantou Haoda Tyre Test Equipment Co., Ltd., Beijing Research and Design Institute of Rubber Industry, Aeolus Tyre Co., Ltd., Triangle Tyre Co., Ltd., Shandong Linglong Tyre Co., Ltd., Zhongce Rubber Group Co., Ltd., South China Tire and Rubber Co., Ltd., and Sailun Jinyu Group Co., Ltd.
Chief drafting staffs of this Standard. Gu Zheng, Wen Xiaolei, Xu Nengfa, Chen Xun, Wang Kexian, Liu Wenmin, Zhang Chunge, Chen Shaomei, Chai Delong, Luo
Miaoqing, Wang Yejing, and Li Zhengang.
Rims for Truck-Bus
1 Scope
This Standard specifies the specification, contour, and size of the rims matching the truck and bus wheel and tyres.
This Standard is applicable to the truck and bus wheel rims.
2 Normative References
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.
GB/T 2933 Wheels/Rims for Pneumatic Tyres - Nomenclature, Designation and Marking (GB/T 2933-2009, ISO 3911.2004,IDT)
GB/T 3487 Rims for Passenger Car (GB/T 3487-2015, ISO 4000-2.2013,
Passenger Car Tyres and Rims ?€? Part 2. Rims, MOD)
3 Terms and Definitions
The terms and definitions stipulated in GB/T 2933 are applicable to this document. 4 Rim contour size code
Refer to Figure 1 for the rim contour size code.

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