Estimation of the Effect of Temperature and Microgeometry of the Counterbody Surface on Wear Resistance of Tread Rubber

A study has been conducted on the wear resistance of the tread rubber of an all-metal radial truck tire at various temperatures: –25, 23, and 80°C. Sandpaper of various grains is used as a counterbody. The tests were carried out at a constant sliding rate of 2 cm/s and a normal pressure of 0.7 MPa. This paper presents the results of assessing the effect of temperature on the intensity and mechanism of wear for rubber. A contactless 3D gauge was used to study the evolution of the surface microgeometry and changes in the size of wear particles. The rubber wear resistance parameter was determined by processing experimental data on mass wear using a simplified solution of the corresponding wear contact problem.