What is disc brakes
Here, the friction surfaces (brake pads) are flat.
Heat dissipation rate is better, as the assembly exposed to atmosphere
It has heat dissipation holes.
Cooling of surfaces is quicker.
Braking is quicker, therefore vehicle comes to rest quickly
Construction of Disc Brake:
Modern vehicles always equipped with disc brakes on at least the front two wheels. It
consists of mainly 3 parts,
[1] Rotor [2] Caliper [3] Brake pads
In between each piston and disc, friction pad held in position by springs. Higher
applied forces can be used in disc brakes than in drum brakes, because the design of
the rotor is stronger than the design of the drum. Due to this, large resistance is
carried by flat disc. In this, Flat plate disc with flat friction pad are used against heavy
drum. Friction surface directly exposed to air cooling which results better (faster) heat
dissipation.
Applications:
Front wheels of passenger vehicles.
Front wheels of heavy duty transport vehicles.
