ANTIFRICTION COMPOSITE Russian patent published in 2000 - IPC

FIELD: friction units, ball bearings of working wheels of adjustable blade hydroturbines, hydraulic seals, and servomotors. SUBSTANCE: antifriction composite (polyamido-molybdenum, bronze fluoroplastic composition) is material substrate of which comprises layers of silica fabric and polytetrafluoroethylene-saturated layer of polyamide fabric on working surface. Layers of fabric are impregnated with binder based on epoxydiane resins, molybdenum disulfide (5-30% and 5-30% of volume thereof and finely dispersed bronze (0.3 and 0.3% of volume thereof) being added to binder and polytetrafluoroethylene. Ratios of components are as follows, vol. %: polyamide fabric, 30: silica fabric, 2.5; epoxydiane resin-based binder, 42.4. Binder comprises, vol.%: molybdenum disulfide, 5-30; finely dispersed bronze, 5-30; polytetrafluoroethylene, 2.6 comprising vol %: molybdenum disulfide, 0.3; and finely dispersed bronze, 0.3. EFFECT: material that increases service life of ball bearings without lubrication at high loads and improves reliability of ball bearings and hydraulic unit as the whole. 2 dwg, 2 tbl