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JB/T 7944-2013Cylindrical helical springs - Sampling inspection (English PDF)

圆柱螺旋弹簧抽样检查

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

December 31, 2013

Implementation date

July 1, 2014

Scope

JB/T 7944-2013 is the English-translated version of 圆柱螺旋弹簧抽样检查.

JB/T 7944-2013 is a recommended Chinese machinery industry standard that governs the sampling inspection of cylindrical helical springs. It specifies the sampling method to be used for this kind of spring.

JB/T 7944-2013 applies to cold-formed and hot-formed cylindrical helical compression springs and to cold-formed helical tension and torsion springs, and the sampling inspection of other spring types may refer to it.

It replaces the 2000 edition of JB/T 7944. It quotes GB/T 1805 and GB/T 2828.1-2012. The spring is filed under the Chinese classification J26 and the international classification 21.160.

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Document preview — JB/T 7944-2013

National Standard of the People's Republic of China

ICS: 21.160
Replacing: JB/T 7944-2000

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Scope
2 Normative references

1 Foreword

JB/T 7944-2013 was issued by MIIT on 31 December 2013 and has been in force since 1 July 2014.

It replaces the earlier edition JB/T 7944-2000.

2 Scope

This standard is a recommended Chinese machinery industry standard that governs the sampling inspection of cylindrical helical springs. It specifies the sampling method to be used for this kind of spring. JB/T 7944-2013 applies to cold-formed and hot-formed cylindrical helical compression springs and to cold-formed helical tension and torsion springs, and the sampling inspection of other spring types may refer to it. It replaces the 2000 edition of JB/T 7944. It quotes GB/T 1805 and GB/T 2828.1-2012. The spring is filed under the Chinese classification J26 and the international classification 21.160.

3 Normative references

JB/T 7944-2013 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 1805

GB/T 2828.1-2012 — Plain bearings -- Quality characteristics -- Statistical process control (SPC)

4 About this standard

Issued by: MIIT

English translation: about 15 pages

5 Related standards

Other editions:

JB/T 7944-2000 (earlier edition)

6 Classification and status

International classification (ICS): 21.160

Prefix JB/T: recommended standard.

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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

Normative references

Cited by

Similar standards

GB/T 1973.2-2025|GB/T 1973.3-2025|GB/T 13828-2009|GB/T 23935-2009|GB/T 2861.6-2008|JB/T 7367-2013

Editions of JB/T 7944

Edition	Title	Revision	Status
JB/T 7944-2013	Cylindrical helical springs - Sampling inspection	current edition	Current
JB/T 7944-2000	Cylindrical helical springs - Sampling inspection	previous edition	Superseded

This page sells the current edition, JB/T 7944-2013. Earlier editions are listed for reference only.

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