The automobile braking system mainly consists of the following parts:

(1) Control system pedal, hand brake, etc.;

(2) Hydraulic system hydraulic oil, brake main pump, hydraulic pipeline brake sub-pump;

(3) Power system vacuum booster pump;

(4) Electronic control system ABS pump, ABS sensor, ABS computer;

(5) Implementation system brake clamp, brake pad, brake disc.

The braking effect of the brake system is ultimately determined by the brake pad, so the quality of the brake pad is crucial to the braking effect. The common brake pad types are the following two: one is used for the disc brake pad, the other is used for the drum brake shoe.

Brake shoe

Brake shoe refers to the brake CAM or push rod by the amount of action and is pushed out to expand the brake brake to drum up braking parts, installed on the brake drum, is one of the key safety parts in the automotive braking system.
Brake shoe shape such as half moon, when stepping on the brake two half moon shaped brake shoes on the brake cylinder under the action of external extension, supporting the brake shoe friction against the inner wall of the brake drum to slow down or stop the role.