An electromagnetically released friction safety brake secured to a machine element such as a motor, gearing or a mounting bracket (5). To achieve a particularly compact configured brake having high torque an annular outboard traction sheave with the components integrated therein it is proposed that at least one rotating circular ring-shaped friction lining mount (7) is connected to the face edge of the traction sheave facing the machine element (5) and protrudes radially from without into the radial gap between the machine element (5) and the armature disk (6). Preferably the circular ring-shaped friction lining mount (7) is secured axially shiftable to the traction sheave (1) with the aid of spring lamellae (9) in the form of circular ring segments. |