How Drum Brakes Work

Here's how drum brakes work to stop your car.

Drum brakes are typically found on the rear of most economy cars. They are economical, however don't offer the stopping power that disc brakes do.

They consist of a shoe, which carries the pad material and a drum, to which the shoes internally contact to slow the wheel.

The shoes are controlled by return springs and are activated by a wheel cylinder. The wheel cylinder is essentially a piston that pushes both shoes outward near the top of the assembly.

The parking brake cable also uses the drum brake components to activate. Instead of a wheel cylinder, a manual cable pulls on a secondary lever that will push out the shoes.

In this video, the rear drum brakes from a 2001 Toyota Corolla is taken apart to demonstrate how each component fits and function in the assembly.

Видео How Drum Brakes Work канала speedkar99