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GB/T 23919-2025Tri-wheel vehicles - Shock absorbers (English PDF)

三轮汽车　减振器

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 2, 2025

Implementation date

July 1, 2026

Scope

GB/T 23919-2025 is the English-translated version of 三轮汽车　减振器.

GB/T 23919-2025 is the Chinese standard "Tri-wheel vehicles - Shock absorbers". Its scope clause reads: This document specifies the structural dimensions, technical requirements, inspection rules, marking, packaging, transportation, and storage of shock absorbers for three-wheeled vehicles, and describes related aspects.

The corresponding test method. This document applies to the design, manufacture, and inspection of shock absorbers for three-wheeled vehicles (including front shock absorbers and their assemblies, and telescopic shock absorbers). Its clauses include terms and definitions.

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Document preview — GB/T 23919-2025

National Standard of the People's Republic of China

ICS: 65.060
Classification: T 54
Replacing: GB/T 23919-2009

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

Foreword
6.2.3).
1 Scope

1 Scope

This document specifies the structural dimensions, technical requirements, inspection rules, marking, packaging, transportation, and storage of shock absorbers for three-wheeled vehicles, and describes related aspects.

The corresponding test method.

This document applies to the design, manufacture, and inspection of shock absorbers for three-wheeled vehicles (including front shock absorbers and their assemblies, and telescopic shock absorbers).

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

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/T 1239.2-2009 Technical conditions for cold-rolled cylindrical helical springs - Part 2.Compression springs

GB/T 2828.1 Sampling Procedures for Inspection by Attributes - Part 1.Sampling Schemes Retrieved by Acceptable Quality Limit (AQL) for Lot-by-Lot Inspection

GB/T 16947 Standard for Fatigue Testing of Helical Springs

JB/T 5673-2015 General Technical Requirements for Painting Agricultural and Forestry Tractors and Implements

JB/T 13513 Bench Test Method for Low-Speed Vehicle Telescopic Shock Absorbers

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Indicator Card

The relationship curve between the damper resistance P and the piston displacement S.

3.2 Speed characteristics

dampingforce-velocitycurve

The relationship between the damper resistance P and the piston speed v.

3.3 Durability

The relationship between the damper resistance P and the number of cycles n.

3.4 Front Shock Absorber Assembly

Located between the three-wheeled vehicle frame and the front wheel, it mitigates and dampens impacts and vibrations caused by the ground, while also bearing and transmitting the forces acting on the vehicle.

The device (component) that generates various forces and torques between the wheels and the frame.

3.5 front vehicle damper

The part of the front shock absorber assembly after removing the buffer spring.

GB/T 23930 | GB/T 23921 | GB/T 23922 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 44 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

Editions of GB/T 23919

Edition	Title	Revision	Status
GB/T 23919-2025	Tri-wheel vehicles - Shock absorbers	current edition	Current
GB/T 23919-2009	Tri-wheel vehicles - Shock absorbers	previous edition	Superseded

This page sells the current edition, GB/T 23919-2025. Earlier editions are listed for reference only.

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