Disc Foundation Brakes



Although uncommon up to this juncture in air brake technology, disc brakes are beginning to make inroads into the commercial industry. These foundation brakes have been used on commercial vehicles in Europe for a number of years.

The reason for disc brakes technology is that these brakes do not experience brake fade. Rather, when the rotor is heated, it expands into the brake pads and the brakes become more aggressive. Up to this juncture in automotive engineering these types of brakes have been popular on sports cars and bikes.

The challenge for engineers up to this point is the sheer amount of heat generated by brakes on commercial vehicles. Too much heat causes the component parts of the disc brakes to weld together and fail.

There are some newer trucks that have disc brakes. These brakes cannot be adjusted or measured for adjustment by a driver. These brakes must be serviced by a qualified person.

At one and the same time however, that the components of an air brake disc system are visually inspected daily by drivers for damage, insecure parts or components that are not working.

Knowledge Test Questions: which types of brakes have rotors? Which types of brakes have callipers? Can disc brakes be adjusted by the driver?

Disc brakes consist of:

  • brake pads;
  • callipers;
  • rotors.

Other foundations brakes are:

Air-over-hydraulic brakes.

Wedge brakes.

"S" cam brakes.