JB/T 9721-2015Earth-moving machinery - Test methods of reducers (English PDF)
土方机械 减速机试验方法
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
October 10, 2015
Implementation date
March 1, 2016
Scope
JB/T 9721-2015 is the English-translated version of 土方机械 减速机试验方法.
JB/T 9721-2015 is a recommended standard of the Chinese machinery industry that covers the testing of the reducers fitted to earth-moving machinery. Two families of test are described: the methods for establishing basic performance and the methods for establishing reliability.
Both are addressed to the gear units of earth-moving machines. GB/T 25627 is quoted in the text. The standard replaces JB/T 9721-1999 and was issued by the Ministry of Industry and Information Technology.
It is filed under the Chinese classification P97 and the international classification 53.100.
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Document preview — JB/T 9721-2015
National Standard of the People's Republic of China
- ICS
- 53.100
- Replacing
- JB/T 9721-1999
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword
- Scope
- Normative references
- About this standard
- Related standards
- Classification and status
1 Foreword
JB/T 9721-2015 was issued by MIIT on 10 October 2015 and has been in force since 1 March 2016.
It replaces the earlier edition JB/T 9721-1999.
2 Scope
JB/T 9721-2015 is a recommended standard of the Chinese machinery industry that covers the testing of the reducers fitted to earth-moving machinery. Two families of test are described: the methods for establishing basic performance and the methods for establishing reliability. Both are addressed to the gear units of earth-moving machines. GB/T 25627 is quoted in the text. The standard replaces JB/T 9721-1999 and was issued by the Ministry of Industry and Information Technology. It is filed under the Chinese classification P97 and the international classification 53.100.
3 Normative references
JB/T 9721-2015 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 25627
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other editions:
JB/T 9721-1999 (earlier edition)
6 Classification and status
International classification (ICS): 53.100
Prefix JB/T: recommended standard.
......
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
Similar standards
Editions of JB/T 9721
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 9721-2015 | Earth-moving machinery - Test methods of reducers | current edition | Current |
| JB/T 9721-1999 | Earth-moving machinery - Test methods of reducers | previous edition | Superseded |
This page sells the current edition, JB/T 9721-2015. Earlier editions are listed for reference only.
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