JB/T 4371.2-2002Keyless type three-jaw drill chucks - Part 2: Technical specifications (English PDF)
无扳手三爪钻夹头 第2部分：技术条件
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
July 16, 2002
Implementation date
December 1, 2002
Scope
JB/T 4371.2-2002 is the English-translated version of 无扳手三爪钻夹头 第2部分：技术条件.
JB/T 4371.2-2002 is the Chinese machinery industry standard covering keyless type three-jaw drill chucks, Part 2: Technical specifications. It was issued on 16 July 2002 and has been in force since 1 December 2002, replacing JB/T 4371.3-1999.
The document is under the responsibility of the Ministry of Industry and Information Technology. This page is published from the official record of the 2002 edition.
The figures, limits and tables the standard contains are those of the document itself, delivered in full with the English translation.
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Document preview — JB/T 4371.2-2002
National Standard of the People's Republic of China
- Replacing
- JB/T 4371.3-1999
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- [Preview only]
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Type
- 3.2 Basic parameters
- 4 Types and basic parameters
- 4.1 Types
- 4.2 Model designation
- 4.3 Nominal operating conditions
- 4.4 Safety and hygiene
- 4.5 Welding
- 4.6 Bridge (After crane operation mechanism assembled)
- 4.7 Assembly
- 4.8 Electrical control equipment
- 4.9 Steel pretreatment and painting
- 5 Technical requirements
- 5.1 General requirements
- 5.2 Safety requirements
- 5.3 Cold and hot working forming
- 5.4 Rated load test
- 5.5 Whole machine noise test
- 5.6 Static rigidity test
- 5.7 Dynamic load test
- 5.8 Crane span deviation
- 5.9 Diagonal difference of bridge
- 6 Test methods
- 6.1 Exit-factory inspection
- 6.2 Type inspection
- 7 Inspection rules
- 7.1 Marking
- 7.2 Packaging, transportation and storage
- 7.3 Transportation
- 7.4 Storage
- 8 Marking, packaging, transportation and storage
- 9 标志和标签 9 Marking and labeling
1 Foreword
JB/T 4371.2-2002 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 16 July 2002 and has been in force since 1 December 2002.
It replaces the earlier edition JB/T 4371.2-1999.
It is one of 5 parts of the JB/T 4371 series.
2 Scope Preview
JB/T 4371.2-2002 carries no ICS number and no Chinese Standard Classification code.
This catalogue holds 21,922 other JB/T standards.
Of the 5,298 JB/T standards that do carry an ICS number, 1,460 (28%) fall under ICS 25, in the field of manufacturing engineering.
3 About this standard
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
English translation: about 15 pages
4 Related standards
Other parts of this standard:
JB/T 4371.1-1999 — Self-tightening drill chucks - Parameters
JB/T 4371.1-2002 — Keyless three-jaw drill chucks - Part 1: Parameters and testing of the accuracy
JB/T 4371.1-2025 — Part 1: Parameters and accuracy testing
JB/T 4371.3-1999 — Self-tightening drill chucks - Technical specifications
Other editions:
JB/T 4371.2-2025 (later edition)
JB/T 4371.2-1999 (earlier edition)
Standards on related subjects:
JB/T 12396-2015 — Proportional valve solenoids
GB/T 4346-2008 — Machine tools - Manually operated self-centring chucks
JB/T 6105-2007 — Hydraulic power units for NC machine tools - Technical requirements
JB/T 6566-2026 — 4-jaw independent chucks
JB/T 4370-2011 — Rotary tables
5 Classification and status
Chinese Standard Classification (CCS): J 52
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.
Similar standards
Editions of JB/T 4371.2
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 4371.2-2002 | Keyless type three-jaw drill chucks - Part 2: Technical specifications | current edition | Current |
| JB/T 4371.3-1999 | Keyless type three-jaw drill chucks - Part 2: Technical specifications | previous edition | Superseded |
This page sells the current edition, JB/T 4371.2-2002. Earlier editions are listed for reference only.
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Related Standards
JB/T 4371.3-1999 — Self-tightening drill chucks - Technical specifications
JB/T 4371.1-1999 — Self-tightening drill chucks - Parameters
JB/T 4371.1-2002 — Keyless three-jaw drill chucks - Part 1: Parameters and testing of the accuracy
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JB/T 4371.2-2002
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