JB/T 8024.5-1999 This standard is a revision of JB/T 8024.5-95 "Lever handles for machine tool fixture parts and components". During the revision, only editorial changes were made according to relevant regulations, and the technical content was not changed. This standard specifies the specifications of type I lever handles with a diameter of 14~27mm; type II lever handles with a diameter of 14~32mm; and type III lever handles with a diameter of 15~25mm. This standard was first issued in 1981 as GB 2224-80, and was first revised to GB/T 2224-91 on April 30, 1991, and was adjusted to JB/T 8024.5-95 in April 1996. JB/T 8024.5-1999 Lever handles for machine tool fixture parts and components JB/T8024.5-1999 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 fixtures1999-08-06Promulgated
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 fixtures
Lever-type handle
JB/T8024.5—1999
Replaces JB/T8024.5—1995
This standard specifies the Type 1 lever-type handle with a specification of 14~27mm; the Type Ⅱ lever-type handle with a specification of 14~32mm; and the mesh-type lever-type handle with a specification of 15~25mm.
2 Referenced standards
The provisions contained in the following standards are 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.
4 Technical conditions
4.1 Material: 45 steel in accordance with the provisions of GB/T699. 4.2 Heat treatment: 35~40HRC for the head.
4.3 Other technical conditions in accordance with the provisions of JB/T8044. 5 Marking
5.1 Marking example:
AI type lever handle with L=220mm, S-14mm: handle AI220×14JB/T8024.5—1999A-IⅡ type lever handle with L=220mm, S,=13mm: handle AIⅡI220×13JB/T8024.5—1999A-Ⅲ type lever handle with L~220mm, d-15mm: handle AⅢ220×15JB/T8024.5—1999National Bureau of Machinery Industry Approved on August 6, 1999, implemented on January 1, 2000
JB/T8024.51999
Straight vehicle
Through-hand vehicle
Head type
Basic size
Limit deviationwwW.bzxz.Net
Basic size
Limit deviation
Basic size
Limit deviation
Basic size
Limit deviation
Basic size
Limit deviation
JB/T 8024.51999
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