JB/T 8022.1-1999 Internal expansion devices for machine tool fixture parts and components

JB/T 8022.1-1999 This standard is a revision of JB/T 8022.1-95 "Internal expanders 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 internal expanders with specifications of 24~250mm. This standard was first issued in 1981 as GB 2217-80, first revised to GB/T 2217-91 on April 30, 1991, and adjusted to JB/T 8022.1-95 in April 1996. JB/T 8022.1-1999 Internal expanders for machine tool fixture parts and components JB/T8022.1-1999 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
1Scope
Machinery Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesInner expansion-gear
This standard specifies the inner expansion-gear with specifications of 24~250mm. 2 Dimensions
The dimensions are shown in the figure and table below.
1999-08-06 approved by the State Bureau of Machinery Industry JB/T 8022.11999www.bzxz.net
JB/T8022-1995
2000-01-01 implementation
24 ~30
>30 ~40
> 40 ~ 50
> 50 ~ 65
>65-80
>80~100
>100~120
>120~180
>180~250
3 Marking
3.1 Marking example:
Internal expander with D=55mm:
Internal expander
5JB/T8022.11999
JB/T8022.I—1999
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