This standard specifies series, technical requirements, test methods, inspection rules, marking, packaging, storage and transportation and the like of steel bearings for railway bridge.
This standard is applicable to design and manufacture of bearing with circular cylindrical surface, bearing with cylindrical surface, rocker bearing, roller bearing and sliding bearing with hinged shaft (hereinafter referred to as steel bearings) for railway bridge with vertical bearing capacity less than or equal to 20,000 kN. This standard may apply to steel bearings of other structural styles by reference.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 223 Methods for Chemical Analysis of Iron, Steel and Alloy
GB/T 228-2002 Metallic Materials-Tensile Testing
GB/T 231.1-2002 Metallic Materials - Brinell Hardness Test - Part 1: Test Method
