Design and experimental testing of an instrument to evaluate the wear resistance of parts of transportation equipment

Calculations are performed to determine the parameters for the adjustment of a friction dilatometer with allowance for local contact strains caused by impact against structural elements of the instrument. An analysis of the results of the calculations is used as a basis for proposing a method of adjusting it for specific test conditions. Experimental data is presented that demonstrates the feasibility of using the instrument to measure the linear wear of high-strength contacts.