JB/T 9907.4-2017Double-disc grinding machines - Part 4: Double-disc grinding machines with a horizontal spindle - Testing of the accuracy (English PDF)
双端面磨床 第4部分：卧轴双端面磨床 精度检验
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
January 9, 2017
Implementation date
July 1, 2017
Scope
JB/T 9907.4-2017 is the English-translated version of 双端面磨床 第4部分：卧轴双端面磨床 精度检验.
JB/T 9907.4-2017 is part 4 of the Chinese machinery industry standard on double-disc grinding machines and deals with the accuracy testing of the machines with a horizontal spindle.
It sets the requirements for geometric accuracy and for working accuracy, the methods by which each of them is checked, and the tolerances that go with them.
It applies to general-purpose horizontal-spindle double-disc grinders with grinding wheels from 250 mm to 900 mm in outside diameter, whether the work is fed through the machine or carried on a disc.
The standard is a recommended one, classified J55 in China and 25.080.50 internationally. It quotes GB/T 17421.1-1998.
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Document preview — JB/T 9907.4-2017
National Standard of the People's Republic of China
- ICS
- 25.080.50
- Replacing
- JB/T 9916-1999
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 9907.4-2017 was issued by MIIT on 9 January 2017 and has been in force since 1 July 2017.
It is one of 6 parts of the JB/T 9907 series.
2 Scope
JB/T 9907.4-2017 is part 4 of the Chinese machinery industry standard on double-disc grinding machines and deals with the accuracy testing of the machines with a horizontal spindle. It sets the requirements for geometric accuracy and for working accuracy, the methods by which each of them is checked, and the tolerances that go with them. It applies to general-purpose horizontal-spindle double-disc grinders with grinding wheels from 250 mm to 900 mm in outside diameter, whether the work is fed through the machine or carried on a disc. The standard is a recommended one, classified J55 in China and 25.080.50 internationally. It quotes GB/T 17421.1-1998.
3 Normative references
JB/T 9907.4-2017 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 17421.1-1998
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other parts of this standard:
JB/T 9907.1-1999 — Double face grinding machines - Series spectrum
JB/T 9907.1-2019 — 1: Types and parameters
JB/T 9907.2-2000 — Technical requirements
JB/T 9907.2-2014 — Double Disc Surface Grinder - Part 2: Specifications
JB/T 9907.3-2014 — Double Disc Surface Grinding Machines - Part 3: Double Disc Surface Grinding Machines with Vertical Spindle - Testing of the Accuracy
6 Classification and status
International classification (ICS): 25.080.50
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
Similar standards
Editions of JB/T 9907.4
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 9907.4-2017 | Double-disc grinding machines - Part 4: Double-disc grinding machines with a horizontal spindle - Testing of the accuracy | current edition | Current |
| JB/T 9916-1999 | Double-disc grinding machines - Part 4: Double-disc grinding machines with a horizontal spindle - Testing of the accuracy | previous edition | Superseded |
This page sells the current edition, JB/T 9907.4-2017. Earlier editions are listed for reference only.
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Related Standards
JB/T 9907.3-2014 — Double Disc Surface Grinding Machines - Part 3: Double Disc Surface Grinding Machines with Vertical Spindle - Testing of the Accuracy
JB/T 9907.2-2000 — Double-disc grinding machines - Technical requirements
JB/T 9907.2-2014 — Double Disc Surface Grinder - Part 2: Specifications
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JB/T 9907.4-2017
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