JB/T 8026.5-1999 Ball bearings for machine tool fixture parts and components

JB/T 8026.5-1999 JB/T 8026.5-1999 Machine tool fixture parts and components ball head support JB/T8026.5-1999 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 2000-01-01bzxZ.net
Mechanical Industry Standard of the People's Republic of China
Parts and components of jigs and fixtures
The parts and uaits of jigs and fixturesSpherical head supporters
This standard specifies spherical head supports with spherical head diameters of 8~32mm. Cited Standards
JB/T8026.5-1999
Replaces JB/T8026.5—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 will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T6991988 Technical conditions for high-quality carbon structural steel JB/T8044—1999 Technical requirements for machine tool fixture 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
Basic dimensions
Limit deviation h!1
4Technical conditions
JB/T 8026.5—1999
Basic dimensions
Material: 45 steel in accordance with the provisions of GB/T699.
Heat treatment: 40~45HRC.
Other technical conditions shall be in accordance with the provisions of JB/T8044. Marking
Marking example:
Ball head bearing with SΦ=20mm:
Bearing 20JB/T8026.5—1999
Limit deviation r6
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