ASTM B438-17
- Standard Specification for Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)
- standard by ASTM International, 04/01/2017
- Category: ASTM
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1.1 This specification covers porous metallic sleeve, flange, thrust and spherical bronze-base bearings that are produced from mixed metal powders utilizing powder metallurgy (PM) technology and then impregnated with oil to supply operating lubrication.
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