Brake pads for railway passenger cars K-L-MK 400 (M 659.000) TIIR-303

Brake shoes are designed for railway rolling stock of passenger trains. It is made by pressing composite material of code TIIR-303 (328-303) onto metal stamped frame. Pads are used to provide the necessary braking efficiency of braking corners of railway passenger cars with the maximum permissible temperature on the friction surface of the pad at short-term exposure to + 500 degrees, the maximum permissible bulk temperature at long-term exposure to + 300 degrees, the maximum permissible sliding speed to 45 m/s (160 km/h).

Brinell hardness (NV 16/187,5/30) from 1,2 -2,3. Steel friction coefficient (grade 2 steel) 0.38-0.50. Compressive strength MPa - not less than 15.