Comparison of Disc and Drum type Brakes Drum Brake

Disc Brake

Drum brakes have cooling problem because the friction occurs at internal surfaces, difficult to remove.

Non-uniform wear of brake pads because of curved shape.

Loss of efficiency of braking due to expansion.

Higher weights.

Comparatively low anti-fade characteristics.

Comparatively complex design.

Total friction area is comparatively very high almost four times than disc brake.

Friction surface is in direct contact of air, hence easy cooling.

Uniform wear of pads because of straight shape.

There is no loss of efficiency.

Lower weights.

Comparatively high anti-fade characteristics.

Simple designs.

Low total friction area.