| Topic | Summary |
| Disc brake system |
The primary components of disc brakes are: the rotor, caliper and brake pads. |
| Disc brake operation |
The disc brake system converts the hydraulic pressure generated at the master cylinder into a frictional clamping force against the rotating discs. |
| Disc brake rotors |
The brake disc rotates with the road wheel. It provides a smooth surface against which to force the brake pads, to slow or stop the vehicle. |
| Disc brake pads |
A disc brake pad has a rigid, molded, friction material bonded to a steel backing plate for support during brake application. It transforms the hydraulic force of the caliper into a frictional force against the disc. |
| Disc brake calipers |
Disc brake calipers provide a housing for the hydraulic piston or pistons that force the brake pads into contact with the disc. |
| Proportioning valves |
The proportioning valve divides up the braking effort applied to front and rear wheels under heavy braking, according to how load is distributed across a vehicle. |
| Proportioning valve operation |
The proportioning valve adjusts the braking force applied to the wheels to allow for changes in load. |
| Brake friction materials | Brake pads and linings are made from materials which have a high coefficient of friction. The choice of material depends on the braking application, but it needs to be able to absorb and disperse large amounts of heat without braking performance being adversely affected. |