When placed in the correct operating environment, air disc brakes can be used successfully on today’s modern commercial vehicle. Sizing the brake to meet the specific load carrying requirements of the trailer can improve the vehicle’s average stopping distances. Distributing the work properly between the tractor and trailer can minimize thermal overload of the trailer brakes making a more robust wheel end that can result in longer service intervals. This paper will:

  • Look back on the evolution of brake designs for Class 8 tractors
  • Teach you the key differences between a drum and disc brake
  • Compare the performance characteristics between drum and disc brakes

By Hendrickson