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The brake assembly consists of the braking parts around the wheel that are operated by the air brake system.

  • Brake chambers
  • Push rods
  • Slack adjusters
  • S-cam
  • Brake linings
  • Brakes drums.

These are the most common type of foundation air brakes that are currently found on commercial trucks. And owing to advances in air brake technology and regulation in the last two decades, the only susceptibility of these brakes is brake fade. Owing to air brake courses that are a requirement of any commercial licence operating an air brake equipped vehicle, this failing is almost non-existent.

Other foundations brakes are:

Disc brakes.

Wedge brakes.

Air-Over-Hydraulic Brakes.