What Is The Difference Between Disc Brakes and Drum Brakes?

Brake failure can cause horrific vehicle accidents, which is why we stress regular brake checks, maintenance, and repair. Your brakes must always be well-functioning. As a necessary car component, there have been significant advancements in the braking system over the years with the development of new technologies. The most prominent types of brakes today are drum and disc brakes, which differ significantly.


Drum Brakes

Although drum brakes still exist in some cars today, they are older versions of brakes that feature a simplistic design with low manufacturing costs. They are primarily made from cast iron and function by forcing the two arched shoes placed within the drum. Whenever the driver presses the brake pedal, brake fluid is pushed into the drum brake constraining the pistons to press against the drum surfaces. The interference results in the slow spinning of the wheels and eventually brings the car to a complete stop.


Disc Brakes

Disc brakes are advanced brakes that feature a significantly improved design and are widely used today. They have brake calipers that clamp brake pads against each side of the spinning disc. The most notable benefit of a disc brake is that it does not overheat quickly or loses its stopping power, explaining its popularity.


The Differences Between the Two

  • Speed - There is no overheating in disc brakes, making it a popular type in many vehicles. On the other hand, drum brakes are prone to overheating quickly due to a large amount of heat generated.
  • Response Time - Drum brakes have a faster response time than the disc brakes, whose response is slower.
  • Self-Rocking - Drum brakes are naturally self-rocking, whereas disc brakes have never been self-rocking.
  • Torque - Disc brakes have a high torque transmitting capacity, and drum brakes have a low torque transmitting capacity.

Despite the differences, each car owner chooses a specific brake type depending on their car and personal preference. If you require brake repair or any other service, our ASE-certified technicians will be happy to assist you. Give us a call or visit today at Tri Star Automotive!