Study of the Wear Resistance of a Radial Bearing with a Nonstandard Support Profile Taking into Account the Dependence of Viscosity on the Pressure and Temperature

This paper is devoted to the important problem of increase in the wear resistance of a radial bearing that operates in the hydrodynamic mode due to applying an antifriction polymer composite coating with an axial groove, which has truly viscous properties, on a nonstandard bearing bush adapted to friction conditions. The dependence of the rheological properties of a lubricant under turbulent friction on the pressure and temperature is considered. As a result, the velocity and pressure fields in the axial groove and on the surface of the polymer antifriction composite coating have been determined, as have the load capacity and friction force, which make it possible to increase the load capacity, reduce the friction coefficient (increase the wear resistance), and also increase the duration of the hydrodynamic mode. The results of numerical analysis of theoretical models and experimental study of the suggested design are presented to verify and confirm the effectiveness of the models obtained.