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Difference between Drum brakes & Disc brakes?

Difference between Drum brakes & Disc brakes

Drum brakes and disc brakes are the two types of braking systems used in vehicles to reduce speed and make the vehicle stop.


Disc brakes have a circular metal disc on each wheel which is fixed with a brake caliper to the axle. This system uses pads made from a rubber compound that presses against the discs, while drums use pads made from a metal alloy that press against steel rotors inside them. 

Disc Brake


A drum brake is a simple braking system that uses friction to stop the wheel. It consists of a large, flat metal disk with grooves on it. When the wheel turns, the grooves are made to rub against each other. This creates friction which slows down the wheel.

Drum Brakes

Difference between Drum brakes & Disc brakes:

  • Disc Brakes offer greater stopping power because they use a brake rotor with more friction than those used on drums.
  • Braking force is less at high speeds compared to discs.
  • Disc brakes last longer than drums because they don't need to be replaced as often. 
  • Drum brakes do not use rotors that spin like discs, instead, they use friction pads that stick against the wheel's surface. This makes drums much less expensive to produce and also requires far less maintenance than discs do.
  • Discs can get hung up on ice or snow, but drums always perform well in wet conditions. 
  • The discs have holes in them so that air can pass through them during braking so that they don't stick together when you apply pressure to them.
  • The drum brake has a self-locking system and the disc brake has no self-locking system.
  • The maintenance cost for disc brakes is high compared to drum brakes.
  • Disc brakes wear out faster than drums 

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