Friction and Wear Tests of Frictional Materials.

The Electrical Insulating Materials and Plastics Factory (VSZM) has been producing frictional materials for many decades (such as different brake and clutch linings). The author describes the processes taking place at braking and the relation of forces during braking, and makes the requirements against frictional materials known here. On the basis of laboratory tests and experimental runs on real vehicles he checks the reliability of the quality of the company's products, moreover these experiments are essential in the continuous development of the company's products and production.