JB/T 2231.3-1999 This standard adopts ISO 3548:1978 "Sliding bearings - Dimensions, tolerances and inspection methods of thin-walled bearings". This standard is equivalent to ISO 3548:1978 in terms of thin-walled bearing types, specifications, main dimensional characteristics and inspection methods. This standard is a revision of ZB J72 008-87 "Thin-walled bearings for reciprocating piston compressors". The main technical content changes are as follows: - Adjustments have been made to the terms and definitions of some dimensional characteristics and structural elements; - Adjustments have been made to the provisions of basic dimensions and related dimensional classifications; - Modifications have been made to the manufacturing requirements and inspection rules for surface roughness, bearing alloy materials, etc. This standard is the third part of the JB/T 2231 series of standards for reciprocating piston compressor parts, which includes the following five independent components: JB/T 2331.1: Shaft and pin external dimensions JB/T 2331.2: Cylinder diameter JB/T 2331.3: Thin-walled bearings JB/T 2331.4: Annular valve discs JB/T 2331.5: Valve installation dimensions This standard specifies the specifications, technical requirements, inspection methods, inspection rules, packaging and storage requirements for thin-walled bearings for reciprocating piston compressors. This standard applies to multi-layer metal bearings with a bearing seat hole diameter of 20~400mm. This standard was first issued in 1977 and revised for the first time in 1987. JB/T 2231.3-1999 Reciprocating piston compressor parts Part 3: Thin-walled bearings JB/T2231.3-1999 Standard download decompression password: www.bzxz.net

Ics 23.14n
Machinery Industry Standard of the People's Republic of China
JBr2231.3—1999
Reciprotating piston rompressur part-subassemblPart 3: Thin-walled bearing shells1999-07-12 Released by
National Bureau of Machinery Industry
2000-01-01 ImplementationbZxz.net
JB/T2231.3-1005
This standard amends 2J720088 reciprocating machine full-wall shaft selection: Compared with July 17208-7: The following are the changes in the technical content: 1 The main content of the scale is consistent with the technical method of the elements, and the meaning of the change is changed; Sign this scale to know the size of the small parts of the complete source: 3 The table of materials for storage, new alloy materials, manufacturing shadow table and inspection specifications are slightly modified 4 The third part of the standard 2231 standard object seasonal dry pin rainbow and other parts is included in the standard. This series of standards includes five components:
Responsibility function (ear 233! 1: certification, pin outer diameter size Meng 2 Part (B233 [.2: New diameter
grams (JB" 2331.3: Thin drop bearing
7 printing [RT2351.4: Ring cleaning
Part 5 is BT231 valve room size
1 standard from the date of implementation of the record to replace 2BJ72008-87: Appendix A of the international standard is the most busy Appendix B of the standard filter by the national press screen machine standard public installation technical committee all the design of the old, this standard outstanding unit: heavy table service treatment parts factory. Public funds standard ten key points: Bo Zhihang, Xie Run, Zheng Zhengfeng, Zibao
Machinery Industry Standard of the People's Republic of China
Reciprocating piston compressor parts
Part 3: Thin wall bearing ... plston compressor part-gubasseublyPart 3: Thin-walled bearing shell.JBT2231.3-1999
I:E 2 :72 x.-8-
This standard continues to define the specifications and technical requirements for bearings (hereinafter referred to as bearings), including the following: methods and markings, tables and standards.
This standard specifies the specifications and technical requirements for bearings with a thickness of 20-40Gmm. 2 Reference standards
The following referenced texts shall become the main texts of this standard through reference in this standard. This standard shall include the following references and the following references: All standards shall be amended and the parties using this standard shall use the latest version of the following standards as the main possibility. GB T 694 --: 953
GRT 174 J992
sR.t :R31: 1979
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