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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 standard "General technical specification for bogies of urban rail transit vehicles". Its scope clause reads: 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.

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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

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.General Requirements
5.Characteristic requirements of each component
6.Completion Requirements
7.Test Methods 6.
8 Inspection Rules
9.Quality Assurance 7.
10.Marking, Packaging, Transport and Storage 7.

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 1.Locomotive and rolling stock clearances

GB/T 5068 Steel for axles of railway locomotives and rolling stock

GB/T 5599 Standard for Evaluation and Testing of Dynamic Performance of Locomotives and Rolling Stock

GB/T 7928 General Technical Conditions for Metro Vehicles

GB/T 14894 Rules for Inspection and Testing of Urban Rail Transit Vehicles After Assembly

GB/T 25343 (all parts) Welding of railway vehicles and their components

GB/T 37454 Design Method for Non-Powered Axles of Railway Vehicles

GB/T 37532 General Technical Conditions for Vehicles of Urban Rail Transit Suburban Express Lines (120 km/h~160 km/h)

CJJ/T 96 Metro Clearance Standard

TB/T 1027.1 Locomotive Axles Part 1.Steel Billets

TB/T 1027.2 Locomotive Axles Part 2.Axles

TB/T 1491 Hydraulic shock absorbers for locomotives and rolling stock

TB/T 2211 Compression steel helical springs for locomotives and rolling stock

TB/T 2395 Design Method for Power Axles of Locomotives and Rolling Stock

TB/T 2785 Technical conditions for welding low-alloy high-strength structural steel for locomotives and rolling stock

TB/T 2841 Air Springs for Railway Vehicles

TB/T 2843 General Technical Requirements for Rubber Elastic Elements for Locomotives and Rolling Stock

TB/T 2945 Technical Specifications for LZ50 Steel Axles and Billets for Railway Vehicles

TB/T 2949 Height Adjustment Device for Railway Passenger Cars and EMUs

TB/T 2980 Basic Braking Devices for Locomotives and Rolling Stock - Disc Brakes

TB/T 3104.1 Brake shoes for locomotives and rolling stock - Part 1.Composite brake shoes

TB/T 3145 Locomotive Unit Brake

TB/T 3431 Locomotive and Rolling Stock Brake Caliper Unit

TB/T 3541.3 Locomotive and Rolling Stock Disc Brakes Part 3.Composite Brake Pads

TB/T 3541.5 Locomotive and Rolling Stock Disc Brakes Part 5.Unit Brake Cylinders

TB/T 3541.3 | TB/T 2841 | TB/T 2983 | GB/T 47360 | GB/T 44853 | […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 25343

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

This page sells the current edition, GB/T 46720-2025. Earlier editions are listed for reference only.

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