Modeling the operation of a thrust bearing with a support made of antifriction material

The article considers the issues of the frictional interaction of the stationary distributor of an axial piston pump with a rotating cylinder block. The assertion is substantiated about the prospect of replacing the steel distributor with promising non-metallic carbon composites to prevent seizure and scuffing of metal surfaces operating in a hydraulic fluid environment. The friction coefficients of carbon composite and fluoroplastic, adopted as a comparison standard, are investigated. The experiments were conducted under conditions of load-speed characteristics of pump operation in hydraulic systems of construction machines in the temperature range from room temperature to the maximum permissible temperature of used hydraulic fluid. Particular attention is paid to the dependence of the friction coefficient on the load and wear resistance of materials. The assumption about the effectiveness of using carbon-carbon composite material to improve the reliability and service life of an axial piston pump is substantiated.