JB/T 8026.1-1999 Hexagonal head supports for machine tool fixture parts and components

JB/T 8026.1-1999 This standard is a revision of JB/T 8026.1-95 "Hexagonal supports 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 hexagonal supports with thread specifications of M5~M36. This standard was first issued in 1981 as GB 2227-80, first revised to GB/T 2227-91 on April 30, 1991, and adjusted to JB/T 8026.1-95 in April 1996. JB/T 8026.1-1999 Hexagonal supports for machine tool fixture parts and components JB/T8026.1-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01www.bzxz.net
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
Parts and units of jigs and fixturesHexagon head supporters
This standard specifies the hexagon head supports with thread specifications of M5 to M36. 2 Reference standards
JB/T8026.1-1999
Replaces JB/T8026.1—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/T699—1988 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 Machinery Industry Bureau on August 6, 1999 184
Implemented on January 1, 2000
Basic dimensions
Limit deviation
Technical conditions
4.1 Material: 45 steel in accordance with the provisions of GB/T699. JB/T8026.1-1999
4.2 Heat treatment: L≤50mm 40~55HRC for all parts; L>50mm 40~50HRC for the head 4.3 Other technical conditions shall comply with the provisions of JB/T-8044. 5 Marking
5.1 Marking example:
d-M10, L=25mm hexagonal head bearing:
Bearing M10×25JB/T8026.11999
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