GB/T 46720-2025General technical specification for bogies of urban rail transit vehicles (English PDF)

城市轨道交通车辆转向架通用技术条件

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

May 1, 2026

Scope

GB/T 46720-2025 is the English-translated version of 城市轨道交通车辆转向架通用技术条件.

GB/T 46720-2025 is the Chinese national standard covering the metro bogie - the frame and its fatigue strength, the primary and secondary suspension, the wheelsets and axle boxes, the traction link and the brake mounting, and the tests a bogie has to pass before it carries anyone. First edition, under the Ministry of Housing and Urban-Rural Development, in force from 1 May 2026. Issued on 31 October 2025, it has been in force since 1 May 2026.

Document preview — GB/T 46720-2025

National Standard of the People's Republic of China

ICS: 45.060.20
Classification: S 33

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1.Scope1
2 Normative References1
3.Terms and Definitions2
4.General Requirements2
5.Characteristic requirements of each component3
6.Completion Requirements5
8 Inspection Rules6
10.Marking, Packaging, Transport and Storage 7. Reference9

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China. This document is under the jurisdiction of the National Technical Committee on Standardization of Urban Rail Transit (SAC/TC 290). This document was drafted by: China Academy of Railway Sciences (Beijing) Engineering Consulting Co., Ltd., CRRC Qingdao Sifang Co., Ltd., and China Railway... Urban Rail Transit Center of China Academy of Railway Sciences Group Co., Ltd., Locomotive and Rolling Stock Research Institute of China Academy of Railway Sciences Group Co., Ltd. Beijing Jiaotong University, Wuxi Metro Group Co., Ltd., Shenyang Metro Group Co., Ltd., Southwest Jiaotong University, Xi'an Rail Transit Group Limited Liability Company, Beijing Subway Operation Co., Ltd., Beijing Rail Transit Construction Management Co., Ltd., Wenzhou Railway and Rail Transit Investment Co., Ltd. Group Co., Ltd., Guangzhou Metro Group Co., Ltd., Hefei Rail Transit Group Co., Ltd., CRRC Changchun Railway Vehicles Co., Ltd. CRRC Tangshan Locomotive & Rolling Stock Co., Ltd., CRRC Nanjing Puzhen Rolling Stock Co., Ltd., CRRC Zhuzhou Electric Locomotive Co., Ltd., CRRC Dalian Locomotive & Rolling Stock Co., Ltd. Vehicle Company Limited. The main drafters of this document are. Cheng Yongyi, Deng Wenhao, Niu Haiyan, Wang Yunfan, Chen Xinghua, Yu Zhenhua, Zhang Haitao, Zhang Yonggang, and Qiao Yuanwei. Dai Yuanting, Zhang Xiongfei, Cun Dongdong, Wang Lindong, Guo Yanhui, Zhu Shiyou, Shang Zhijian, Yue Xun, Ji Cheng, Chu Wanxi, Luo Ren, Wu Chunhui, Zhang Jin, Zhang Guannan Liu Xiao, He Zhiping, Hao Xiaowu, Xi Jiangfei, Xue Shihai, Chen Yanhong, Wu Meng, Liu Manhua, Shen Longjiang, Li Li, He Shizhong, Pei Peng, Li Tao. General technical conditions for urban rail transit vehicle bogies

1 Scope

This document specifies the general requirements, component characteristic requirements, installation requirements, test methods, and inspection procedures for urban rail transit vehicle bogies. Rules, quality assurance and marking, packaging, transportation and storage. This document applies to newly designed and manufactured urban rail transit vehicles with steel wheel and steel rail systems and a maximum operating speed not exceeding 160 km/h. Vehicle bogies, including. Type A, Type B, and Type LB metro vehicle bogies; Type C-I and Type LC light rail vehicle bogies; and urban rapid rail vehicle bogies. Bogies. The same applies to bogies for other steel wheel and rail systems used in urban rail transit vehicles.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

GB 146.1 Standard gauge railway clearances - Part

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 13 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 25343 · GB/T 37454

Editions of GB/T 46720

Edition	Title	Revision	Status
GB/T 46720-2025	General technical specification for bogies of urban rail transit vehicles	current edition	Current

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