ASTM International - ASTM B439-00e1
Standard Specification for Iron-Base Sintered Bearings (Oil-Impregnated)
|Publication Date:||10 October 2000|
|ICS Code (Plain bearings):||21.100.10|
1.1 This specification covers sintered metal powder, oil-impregnated, bearings of four iron-base compositional grades:
Grades 1 and 2-iron-carbon
Grades 3 and 4-iron-copper
1.2 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate.