Impregnated composite bearings and methods related knowledge In porous material matrix impregnated Sliding bearing teflon bush constitutes impregnated solid lubricating composite bearings, stored in the internal solid lubricant with bush bearing wear to keep the friction surface of the supply of solid lubricant. A typical SF-1 bushing bearing is carbon graphite base material impregnated with a soft metal, Teflon or an inorganic material. Impregnation methods are: 1. The du oilless bushing material becomes a molten state vacuum impregnation. 2. curable liquid as a carrier, which is impregnated impregnation.
