JB/T 8011.4-1999 Double-sided eccentric wheels for machine tool fixture parts and components

JB/T 8011.4-1999 This standard is a revision of JB/T 8011.4-95 "Double-sided eccentric wheels for machine tool fixture parts and components". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies double-sided eccentric wheels with specifications of 30 to 70 mm. This standard was first issued in 1981 as GB 2194-80, first revised to GB/T 2194-91 on April 30, 1991, and adjusted to JB/T 8011.4-95 in April 1996. JB/T 8011.4-1999 Double-sided eccentric wheels for machine tool fixture parts and components JB/T8011.4-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01
Machinery Industry Standard of the People's Republic of China
The parts and units of jigs and fixtures
The parts and units of jigs and fixtures1999-08-06Promulgated
State Bureau of Machinery Industry
Implementation on 2000-01-01
1 Scope
Machinery Industry Standard of the People's Republic of China
The parts and units of jigs and fixturesDouble side eccentrie wheel
This standard specifies the double eccentric wheels with specifications of 30~70mm. 2 Referenced Standards
JB/T8011.4—1999
Replaces JB/T8011.4—1995
The following standards contain provisions that constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T699-1988 Technical conditions for high-quality carbon structural steel JB/T8044—1999
3 Dimensions
Technical requirements for machine tool fixture parts and components
The dimensions are shown in the following figure and table.
Approved by the State Machinery Industry Bureau on August 6, 1999 and implemented on January 1, 2000
4 Technical conditions
4.1 Material: 20 steel in accordance with the provisions of GB/T699. JB/T 8011.4-1999
Limit Deviation
4.2 Heat treatment: carburizing depth 0.8~1.2mm, 58~64HRC. 4.3 Other technical conditions shall comply with the provisions of JB/T8044. 5 MarkingbZxz.net
5.1 Marking example:
Double-sided eccentric wheel with r=30mm:
Eccentric wheel 30JB/T8011.4—1999
Limit Deviation
Limit Deviation
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