GB/T 12939-2024 English PDF (GB/T12939-2024)

GB/T 12939-2024: Industrial vehicle rims
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GB/T 12939-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.160.99
CCS G 41
Replacing GB/T 12939-2015
Industrial vehicle rims
ISSUED ON: SEPTEMBER 29, 2024
IMPLEMENTED ON: APRIL 01, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Rim profile size codes ... 4
5 Rim profiles and dimensions ... 5
5.1 Split rim profiles (5°DT) ... 5
5.2 C and E deep groove rim profiles (5°DC) ... 8
5.3 Flat bottom rim profile (5°FB) ... 9
5.4 15° deep groove rim profile (15°DC) ... 12
6 Rim nominal diameter ... 13
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents".
This document replaces GB/T 12939-2015 "Rims for industrial vehicles". Compared
with GB/T 12939-2015, in addition to structural adjustments and editorial changes, the
main technical changes are as follows:
- Added some 5° flat bottom rims (see Table 4 of this Edition);
- Changed the tolerance of the nominal width of some 5° flat bottom rims (see Table
4 of this Edition; Table 4 of Edition 2015);
- Added the nominal diameter of the rim corresponding to the rim diameter code (see
Table 7 of this Edition).
Attention is drawn to the possibility that some of the elements of this document may be
the subject of patent rights. The issuing authority shall not be held responsible for
identifying any or all such patent rights.
This document was proposed by China Petroleum and Chemical Industry Federation.
This document shall be under the jurisdiction of National Technical Committee on Tyres
and Rims of Standardization Administration of China (SAC/TC 19).
The drafting organizations of this document: Zhongce Rubber Group Co., Ltd.,
Shandong Linglong Tyre Co., Ltd., Shenzhen Haoda Tyre Testing Technology Co., Ltd.,
Tianjin Jiurong Industrial Technology Co., Ltd., Guizhou Tyre Co., Ltd., Triangle Tyre
Co., Ltd., Xiamen Chengshin Rubber Industry Co., Ltd., Zhongce Rubber (Tianjin) Co.,
Ltd., Beijing Rubber Industry Research and Design Institute Co., Ltd., CITIC Dicastal
Co., Ltd., Qinhuangdao Xinglong Wheel Co., Ltd., Sailun Group Co., Ltd., Jining
Chimaike Wheel Co., Ltd., Jining Lianwei Wheel Manufacturing Co., Ltd., Zhejiang
Baokang Wheel Manufacturing Co., Ltd., Qingdao Beihai Wheel Co., Ltd.
Main drafters of this document: Li Gongwu, He Jian, Li Liping, Chen Xun, Gu Zheng,
Lin Xiaoyong, Hua Yingchun, Chen Jianming, Zheng Nengzhou, Li Shuhuan, Xu
Lihong, Guo Zhenyu, Zhang Dianjie, Wang Zhaolei, Chang Yong, Xu Encheng, Ying
Jinghui, Gao Zhihui, Mou Shouyong, Li Miaomiao, Zheng Rui, Chen He.
This document was first published in 1991. It was first revised in 2002. It was second
revised in 2015. This is the third revision.
Industrial vehicle rims
1 Scope
This document specifies the rim profile dimension codes, rim profiles and dimensions
and rim nominal diameters for industrial vehicles.
This document applies to the rim specification series used for pneumatic tyres for
industrial vehicles.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 2933, Wheels and rims for pneumatic tyres -- Vocabulary, designation and
marking
GB/T 6326, Tyre -- Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 2933 and
GB/T 6326 apply.
4 Rim profile size codes
The rim profile size codes are shown in Figure 1.
GB/T 12939-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.160.99
CCS G 41
Replacing GB/T 12939-2015
Industrial vehicle rims
ISSUED ON: SEPTEMBER 29, 2024
IMPLEMENTED ON: APRIL 01, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Rim profile size codes ... 4
5 Rim profiles and dimensions ... 5
5.1 Split rim profiles (5°DT) ... 5
5.2 C and E deep groove rim profiles (5°DC) ... 8
5.3 Flat bottom rim profile (5°FB) ... 9
5.4 15° deep groove rim profile (15°DC) ... 12
6 Rim nominal diameter ... 13
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents".
This document replaces GB/T 12939-2015 "Rims for industrial vehicles". Compared
with GB/T 12939-2015, in addition to structural adjustments and editorial changes, the
main technical changes are as follows:
- Added some 5° flat bottom rims (see Table 4 of this Edition);
- Changed the tolerance of the nominal width of some 5° flat bottom rims (see Table
4 of this Edition; Table 4 of Edition 2015);
- Added the nominal diameter of the rim corresponding to the rim diameter code (see
Table 7 of this Edition).
Attention is drawn to the possibility that some of the elements of this document may be
the subject of patent rights. The issuing authority shall not be held responsible for
identifying any or all such patent rights.
This document was proposed by China Petroleum and Chemical Industry Federation.
This document shall be under the jurisdiction of National Technical Committee on Tyres
and Rims of Standardization Administration of China (SAC/TC 19).
The drafting organizations of this document: Zhongce Rubber Group Co., Ltd.,
Shandong Linglong Tyre Co., Ltd., Shenzhen Haoda Tyre Testing Technology Co., Ltd.,
Tianjin Jiurong Industrial Technology Co., Ltd., Guizhou Tyre Co., Ltd., Triangle Tyre
Co., Ltd., Xiamen Chengshin Rubber Industry Co., Ltd., Zhongce Rubber (Tianjin) Co.,
Ltd., Beijing Rubber Industry Research and Design Institute Co., Ltd., CITIC Dicastal
Co., Ltd., Qinhuangdao Xinglong Wheel Co., Ltd., Sailun Group Co., Ltd., Jining
Chimaike Wheel Co., Ltd., Jining Lianwei Wheel Manufacturing Co., Ltd., Zhejiang
Baokang Wheel Manufacturing Co., Ltd., Qingdao Beihai Wheel Co., Ltd.
Main drafters of this document: Li Gongwu, He Jian, Li Liping, Chen Xun, Gu Zheng,
Lin Xiaoyong, Hua Yingchun, Chen Jianming, Zheng Nengzhou, Li Shuhuan, Xu
Lihong, Guo Zhenyu, Zhang Dianjie, Wang Zhaolei, Chang Yong, Xu Encheng, Ying
Jinghui, Gao Zhihui, Mou Shouyong, Li Miaomiao, Zheng Rui, Chen He.
This document was first published in 1991. It was first revised in 2002. It was second
revised in 2015. This is the third revision.
Industrial vehicle rims
1 Scope
This document specifies the rim profile dimension codes, rim profiles and dimensions
and rim nominal diameters for industrial vehicles.
This document applies to the rim specification series used for pneumatic tyres for
industrial vehicles.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 2933, Wheels and rims for pneumatic tyres -- Vocabulary, designation and
marking
GB/T 6326, Tyre -- Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 2933 and
GB/T 6326 apply.
4 Rim profile size codes
The rim profile size codes are shown in Figure 1.