GB/T 9204.1-1988 Fixed top parameters

GB/T 9204.1-1988 Fixed top parameters GB/T9204.1-1988 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Fixed center
Dead centre-
Parameter
GB 9204.1—88
This standard adopts the international standard IS0298—1973 Interchangeable dimensions of machine tool lathe tops".
Subject content and scope of application
This standard specifies the parameters and dimensions of fixed tops of different forms. This standard is applicable to various types of fixed tops with metric tapers and Morse tapers. 2 Reference standards
GB.1443 Dimensions and tolerances of self-locking cones in tool shanks YB850 cemented carbide cutting inserts
3 Types, numbers and dimensions
The types, parameters and dimensions of fixed pre-points are as specified in the following figures and tables. Type 1
Approved by the State Machinery Industry Commission on May 12, 1988, or by the manufacturerwwW.bzxz.Net
Type 1
Implemented on January 1, 1989
GB 9204. 1--88
Type #
Metric drawing dimension number
Additional instructions:
M10X0.75M14X1
GB 9204.1—88
23-825
M24X1.5M33X1.5
This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is drafted by the Yantai Machine Tool Accessories Research Institute. 18
From the date of implementation of this standard, the original JB2887~2892—81 (Fixed Center Parameters and Dimensions) shall be used as the Metric Male Number
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