This standard replaces GB 4141.22-84. This standard specifies the type, size and technical requirements of handwheels. JB/T 7273.3-1994 Handwheel JB/T7273.3-1994 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T7270～7277-94
Operating parts
Published on June 18, 1994
Ministry of Machinery Industry of the People's Republic of China
Implementation on January 1, 1995
Mechanical Industry Standard of the People's Republic of China
1 Subject content and scope of application
This standard specifies the types, dimensions and technical requirements of handwheels. 2 Reference standards
JB/T7270.1 Handle
JB/T7270.5 Turning handle
JB/T7276
JB/T7277
3 Type and size
Operating parts marking method
Operating parts technical conditions
The types and dimensions of handwheels are as specified in Figure 1 and Table 1. D
Approved by the Ministry of Machinery Industry on 1994-06-18
FF rotation
JB/T7273.3—94
Other 9
Implemented on 1995-01-01
JB/T 7273.3-94
Basic size
Limit deviation
Basic sizeWww.bzxZ.net
Limit deviation
Basic size
Limit deviation
Basic size
Limit deviation
Basic size
Limit deviation
Weight per piece kg
+g: 018
JB/T 7273. 394
+g 027
+8 022
+: 033
+8 027
4 Marking
4.1 Marking method is in accordance with the provisions of JB/T7276. 4.2 Marking example
JB/T7273.3-94
Type A, d=16, D=160, the marking of sandblasted chrome handwheel is: handwheel 16×160JB/T7273.3Type B, d=16, D160, the marking of sandblasted chrome-plated handwheel is: handwheel B16X160JB/T7273.3Type C, d=16, D=160, the marking of sandblasted chrome-plated handwheel is: handwheel C16X160JB/T7273.3Technical requirements
5.1 Materials
HT200.
5.2 Surface treatment
Sandblasting chrome plating (PS/D·Cr); chrome plating polishing (D·L,Cr). 5.3 The handles shall be of the corresponding specifications specified in JB/T7270.1 and JB/T7270.5. 5.4 Other technical requirements shall be in accordance with the provisions of JB/T7277. Additional remarks:
This standard is proposed and managed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry. This standard is under the responsibility of the Machinery Standardization Research Institute of the Ministry of Machinery Industry, and Shanghai Machine Tool Accessory Factory No. 6 and Shanghai Machine Tool Factory participated in the drafting. According to the Appendix 3 of the State Technical Supervision Bureau's Technical Supervision Bureau's Standard (1992) No. 549 "National Standards Adjusted to Industry Standards", this standard replaces GB4141.22-84.
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