ASTM B67-14(2022)

Anotácia textu normy ASTM B67-14(2022) :

This specification covers the establishment of requirements for lined journal bearings for use on locomotive tenders, passenger cars, and freight equipment cars. Before lining, the brass backs shall be bored and thoroughly tinned in accordance with the best standard practice. After lining, the ends of the bearings shall be made smooth by scraping, filing, or machining. The backing metal shall conform to the requirements specified for named elements for copper alloy UNS No. C94100. The lining metal shall conform to the chemical composition requirements specified for named elements. The finished bearing representing a lot for acceptance shall be broken, either longitudinally or transversely, or both, in order to ascertain the uniformity of the grain of the metal. The chemical analysis of the lining shall be made accordingly.


Keywords:
bronze castings, journal bearings,, ICS Number Code 43.040.50 (Transmissions, suspensions)