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GB/T 14786-2008Tractors and machinery for agriculture and forestry - Test methods of the driving wheels torsion fatigue (English PDF)

农林拖拉机和机械驱动车轮扭转疲劳试验方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

February 3, 2008

Implementation date

July 1, 2008

Scope

GB/T 14786-2008 is the English-translated version of 农林拖拉机和机械驱动车轮扭转疲劳试验方法.

GB/T 14786-2008 is the Chinese standard "Tractors and machinery for agriculture and forestry - Test methods of the driving wheels torsion fatigue". Its scope clause reads: This standard specifies the agricultural and forestry tractor and mechanical drive wheel torsion fatigue test method.

This standard applies to tractors, combine harvester and agricultural machinery equipped with driving wheels of the tire. Its clauses include test sample; test equipment.

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Document preview — GB/T 14786-2008

National Standard of the People's Republic of China

ICS: 65.060.10
Classification: T 64
Replacing: GB/T 14786-1993

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

1 Scope
2 Normative references
3 test sample
4 test equipment

1 Scope

This standard specifies the agricultural and forestry tractor and mechanical drive wheel torsion fatigue test method.

This standard applies to tractors, combine harvester and agricultural machinery equipped with driving wheels of the tire.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. All dated references, which are subsequently owned

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to reach an agreement based on this standard research

Whether you can use the latest versions of these files. For undated references, the latest version applies to this standard.

Agricultural tire series

3 test sample

The test sample should be the finished product wheel passed the factory inspection.

4 test equipment

4.1

The test bed should have a device that will allow the wheel to withstand alternating clockwise and counterclockwise torque (see Figure 1). Other loading principles

The same test bench can also be used.

1 --- test bench power input;

2 --- test bed wheel;

3 --- connecting flange;

4 --- Platen, briquetting;

5 --- test wheels;

6 --- hinge seat;

7 --- disc

8 --- test bench power output.

Figure 1 Wheel torsional fatigue strength test bench sketch […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Cited by

JB/T 8405-2013Tri-wheel Vehicles and Low-Speed Goods Vehicles - Rules for Type Inspection

Similar standards

GB 18447-2025|GB 6376-2025|GB/T 15370.2-2025|GB/T 15370.3-2025|GB/T 19407-2025|GB/T 20948-2025

Editions of GB/T 14786

Edition	Title	Revision	Status
GB/T 14786-2008	Tractors and machinery for agriculture and forestry - Test methods of the driving wheels torsion fatigue	current edition	Current
GB/T 14786-1993	Tractors and machinery for agriculture and forestry - Test methods of the driving wheels torsion fatigue	previous edition	Superseded

This page sells the current edition, GB/T 14786-2008. Earlier editions are listed for reference only.

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