SELECTION OF POLYURETHANE FOR THE FRICTION PAIR OF A DRILLING MACHINE DUE TO TRIBOLOGICAL PROPERTIES

摘要

The paper discusses the influence of the hardness of polyurethane MPC on tribological properties, which are the averages and instantaneous coefficients of friction and the temperature of the friction pair. For the tests, polyurethane of the following Shore hardness was selected: 75° Sh A, 80° Sh A, 85° Sh A, 90° Sh A. The tests were performed using an Amsler wear testing machine.