Friction testing machine

for materialsmechanical

The Chase Friction Material Test Machine is designed and engineered to evaluate the frictional characteristics of materials used in braking systems in accordance with the SAE J661 test procedure. The machine may be effectively utilized for quality control, research and development, or certification type applications, with highly repeatable results. The operation is based upon a one square inch sample of material which is contoured to rub against the interior or a simulated brake drum. By controlling either the normal load or the friction force while monitoring the other parameter under various thermal, speed, and load conditions, an assessment of the materials frictional properties may be made. Rubbing speed is controlled by a variable speed drive, load is controlled by a closedloop servo system, and the temperature of the test drum is controlled by resistance heaters and a forced-air cooling system.