A replaceable metal plate, usually affixed with a fabric friction lining as the contact pad surface. It may be of circular, kidney, or rectangular shape. When mounted in a caliper cylinder housing, between brake disk and hydraulic or pneumatic piston(s), or wheel and caliper lever, it is so designed that actuated pressure, on the shoe friction pad, will retard or stop motion. Excludes brake, dual disk; brake, single disk; brake shoe; and disk, brake.