In disc brakes, the pads are held by a caliper and squeezed against the disc to produce friction and slow the vehicle.
replaceable friction pads which push on each side of the brake disc to slow the vehicle down.
For disc brakes, these are friction material on a metal backing plate that, during braking, is clamped around a brake disc by brake caliper pistons to slow down the wheel to which it is attached. See also brake system, brake fluid.
In a disc system, they are the replaceable flat segments consisting of a rigid backing plate plus frictional lining that takes the place of the shoe and lining in a drum brake. Brake pads are sometimes referred to as brake pucks.
Brake pads are an important part of braking systems for all types of vehicles that are equipped with drum or disc brakes. Brake pads are steel backing plates with friction material bound to the surface facing the brake disk or drum.