A drum brake is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating bowl-shaped part called a brake drum.
Drum brake (upper right) with the drum removed (lower left, inside facing up), on the front of a Ford Falcon Sprint
A rear drum brake on a Kawasaki W800 motorcycle
Back plate made in the pressing shop.
Cut-away section of a wheel cylinder.
A brake shoe is the part of a braking system which carries the brake lining in the drum brakes used on automobiles, or the brake block in train brakes and bicycle brakes.
Drum brake shoes and linings