The hydraulic slave cylinder mounted on the backing plate of a drum brake assembly. The wheel cylinder convert hydraulic pressure from the master cylinder to mechanical force that applies the brake shoes.
Found in the automotive drum brake assembly, it is a device, actuated by hydraulic pressure, which, through internal pistons, pushes the brake shoes outward against the drums.
A hydraulic cylinder device at each wheel of a drum-brake system that transfers hydraulic pressure developed in the master cylinder to the brake shoes.
A small cylinder located at each wheel brake that uses brake fluid to exert hydraulic pressure, which forces the brake shoes against the brake drums and stops the car.