JB/T 8046.3-1999 Machine tool fixture parts and components boring screws

JB/T 8046.3-1999 JB/T 8046.3-1999 Machine tool fixture parts and components boring screws JB/T8046.3-1999 Standard download decompression password: www.bzxz.net

tCS 25. 080. 01
Mechanical Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesBoring sleeve serew
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Published on 1999-08-06
State Machinery Industry Bureau
Implemented on 2000-01-01
Mechanical Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesBoring sleeve serew
This standard specifies the boring sleeve screws with thread specifications of M12 and M16. 2 Reference standards
JB/T 8046.3—1999
Replaces JB/T8046.3—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/T 699—1988
Technical conditions for high-quality carbon structural steelbzxz.net
JB/T8044--1999Technical requirements for machine tool fixture parts and components 3 Dimensions
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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
Basic dimensions
4 Technical conditions
Limited screening difference dI1
4.1 Material: 45 steel as per GB/T699. 4.2 Heat treatment: 35~40HRC.
4.3 Other technical conditions as per JB/T8044. 5 Marking
5.1 Marking example:
d-M12 bell sleeve screw:
Screw M12JB/T8046.3—1999
JB/T8046.31999
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Inner diameter of bell sleeve
> 45 ~80
>80 ~160
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