JB/T 1988-1977 Thin-walled pipe bushings
Basic Information
Standard ID:
JB/T 1988-1977
Standard Name: Thin-walled pipe bushings
Chinese Name:
薄壁管衬套
Standard category:Machinery Industry Standard (JB)
state:Abolished
Date of Release1978-10-01
Date of Implementation:1978-10-01
Date of Expiration:2005-04-15
standard classification number
Standard Classification Number:Machinery>>General Parts>>J15 Pipe Accessories
Publication information
other information
Introduction to standards:
JB/T 1988-1977 Thin-walled pipe bushing JB/T1988-1977 Standard download decompression password: www.bzxz.net
Some standard content:
Standard of the First Machinery Industry Ministry of the People's Republic of China
Thin-walled pipe bushing
Marking example: Thin-walled pipe bushing with d of 12mn: Bushing 12JB1988-77
Issued by the First Machinery Industry Ministry of the People's Republic of China
Proposed by the Standardization Institute of the First Machinery Industry MinistryJB1988-Www.bzxZ.net
All√3
May 1, 1977
Shanghai Mechanical and Electrical Design Institute
Drafted by Chongqing Heavy Duty Automobile Research Institute and others
Dalian Combined Machine Tool Research Institute
Total 2 Page 2
Pipe outer diameter
Pipe inner diameter
JB 1988-77
1. The material of rolled thin steel plate (GB708-65) for steel bushing is A3F. Copper bushings are made of cold-rolled brass sheet (YB460-64) and are rolled in H62. Other materials can be selected according to the use conditions, which shall be agreed upon by both parties when placing an order.
2. The bushing is in a free state when supplied. After being pressed into the pipe end, the dimensions d and 6 must be guaranteed. 3. Technical conditions shall comply with the provisions of JB1989--77. 90
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