With the brake drum to achieve the brake. Brake drum is rotated with the wheel, the brake shoe is connected with the axle through the brake bottom plate, and does not move.
When the system, the shoe through the brake control mechanism pressed on the brake drum, the use of each other's grinding Hu Jun Gang He Bo Gai slump attack force to use
the wheel deceleration until the stop.
81.50200.6686 前制动蹄 HDM7.5t