JB/T 8011.2-1999 Forked eccentric wheels for machine tool fixture parts and components

JB/T 8011.2-1999 This standard is a revision of JB/T 8011.2-95 "Forked eccentrics 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 forked eccentrics with specifications of 25 to 100 mm. This standard was first issued in 1981 as GB 2192-80, first revised to GB/T 2192-91 on April 30, 1991, and adjusted to JB/T 8011.2-95 in April 1996. JB/T 8011.2-1999 Forked eccentrics for machine tool fixture parts and components JB/T8011.2-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01
Mechanical Industry Standard of the People's Republic of China
The parts and units of jigs and fixtures
The parts and units of jigs and fixtures1999-08-06Published
State Machinery Industry Bureau
Implementation on 2000-01-01
Mechanical Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesForked eccentric wheel
This standard specifies forked eccentric wheels with specifications of 25~100mm. 2 Referenced standards
JB/T8011.2—1999
Replaces JB/T8011.2—1995
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T699—19881
Technical conditions for high-quality carbon structural steel
JB/T80441999
Technical requirements for machine tool clamps and their parts and components
3 Dimensions
The dimensions are shown in the following figure and table.
Approved by the State Bureau of Machinery Industry on August 6, 1999, and implemented on January 1, 2000
4 Technical conditions
Limit deviation
4.1 Material: 20 steel in accordance with the provisions of GB/T699. JB/T8011.2-1999
Limit deviation
4.2 Heat treatment: carburizing depth 0.8~1.2mm, 58~64HRC. 4.3 Other technical conditions shall be in accordance with the provisions of JB/T8044. 5 Markingwww.bzxz.net
5.1 Marking example:
D50mm fork eccentric wheel:
Eccentric wheel 50JB/T8011.2—1999
Limit deviation
Plate limit deviation
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