An experimental investigation of various materials on thrust washer bearing operation

Abstract

The current research experimentally quantifies and maps the behaviour of various thrust washer configurations under various conditions. The bearings are tested at controlled loads and speeds for a governed period of time (up to 14 h) or until failure. The experimental results show that at some loads and speeds the bearing operates with a near full hydrodynamic film and under more harsh conditions it operates in the boundary lubrication regime. The experimental results indicate that coatings enhance performance by decreasing friction and thus decreasing the heat generated. By decreasing the generated heat, the physical mechanisms of thermoelastic instability and thermoviscous distress are less likely to occur. Using bronze will decrease the friction between the bearings, although it may also decrease the life of the bearing. However, using more than one round washer appears to not significantly benefit washer-bearing performance.

Frictional study of alumina, 316 stainless steel, phosphor bronze versus carbon as mechanical seals under dry sliding conformal contact

“…On the one hand, copper alloys were metal alloys with the major constituent of copper used for many applications such as bearing, bush, spring, condenser tube, gears, marine fitting, diaphragms, bellows, lock-washers, and cotter pins applications. 18,19 As well, utilized as poorly lubricated bearings in corrosive environments 19 because of their good corrosion resistance, wear resistance, and anti-friction properties. 20 The most commonly used copper alloys were leaded-tin bronzes, phosphor bronzes, aluminum bronze, and silicon bronze.…”