Chevrolet Equinox Rear Brake Drum
About rear brake drum
A drum brake is a brake that uses friction created by a collection of shoes or pads that would press out against a cylinder-shaped revolving component known as a brake drum. Brake drums are an integral part of the drum brakes. A brake drum forms a friction pair together with the brake foot, which will decelerate the wheel's rotation.
How rear brake drum works?
This would cause the brake shoe to expand in both directions. As the brake lining of the shoe would touch the drum's inner surface, friction would be generated between the brake shoe and the drum and stop the vehicle from moving. Once the brake pedal is pressed, it would compress the fluid in the master cylinder and then allow the wheel cylinder piston to expand outwards. Then the brake would be ready to be applied again. There would be a presence at the bottom of the self-adjusting screw used to maintain a minimum gap between the drum and the brake shoe. When the brake shoe lining is worn out, the gap between the drum and the brake shoe increases and the adjuster is adjusted to maintain the minimum gap at that time.