Learn more about drum brake using these hands-on drum brake diagrams that we have collected for you! In these 101 Diagramss, the parts of a drum brake for some types of vehicle are illustrated in clear pictures. Follow these diagrams to study more about drum brake parts! We’ll start by giving you the drum brake diagram of bus below.
A drum brake is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating cylinder-shaped part called a brake drum. The term drum brake usually means a brake in which shoes press on the inner surface of the drum. When shoes press on the outside of the drum, it is usually called a clasp brake. In the drum brake diagrams, you can see that drum brake components include the backing plate, brake drum, shoe, wheel cylinder, and various springs and pins. More 101 Diagramss of drum brake are in the following images.
The backing plate provides a base for the other components. The brake drum is generally made of a special type of cast iron that is heat-conductive and wear-resistant. It rotates with the wheel and axle. When a driver applies the brakes, the lining pushes radially against the inner surface of the drum, and the ensuing friction slows or stops rotation of the wheel and axle, and thus the vehicle. One wheel cylinder operates the brake on each wheel. Two pistons operate the shoes, one at each end of the wheel cylinder. The leading shoe (closest to the front of the vehicle) is known as the primary shoe. Brake shoes are typically made of two pieces of steel welded together. The friction material is either riveted to the lining table or attached with adhesive.
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