SLIDING BEARING Russian patent published in 1997 - IPC

FIELD: mechanical engineering; friction units of machines and mechanisms. SUBSTANCE: sliding bearing has race with working radial and end surfaces which are engageable with respective surfaces of counter-bodies and antifriction coating. End surface of race is provided with bead and recess forming stepped working surface engageable with stepped working surface of counter-body-bush; the following sections of working surfaces are formed in pairs: outer sealing radial sections, end thrust sections and inner bearing radial sections. Mounting surfaces of sliding bearing are formed by peripheral sections of race and counter-body-bush. End thrust sections of working surfaces of race and counter-body-bush are inclined. Race or counter-body- bush is made from metallopolymer or both are provided with antifriction coating made from epoxy-graphite-reinforced fluoroplastic which consists of epoxy binder, polytetrafluoroethylene, graphite and/or molybdenum disulfate, chopped glass fibre (1 to 3 mm) at definite ratio of components. Quantitative composition of components depends on operating conditions of sliding bearing, specific pressure, rate of sliding and temperature of working medium. EFFECT: enhanced reliability and maintainability. 3 cl, 5 dwg