Patent ID: 8359958

Claim:
An emergency braking system of a machine tool for abrupt braking of a rotating shaft of the machine tool, comprising: at least one brake drum; at least one brake shoe, wherein the at least one brake drum and the at least one brake shoe are brought into engagement with each other in order to brake the rotating shaft; wherein the brake drum engages with the brake shoe under the influence of a centrifugal force resulting from the rotation of the rotating shaft, wherein the rotating shaft stops within 50 ms, wherein at least one of the brake drum and brake shoe has a friction lining, wherein the friction lining of the at least one of the brake drum and brake shoe is selected from materials which include at least one of sintered lining, soft aluminum, hard aluminum, polyamide, particularly polyamide PA6.6 glass-fiber reinforced, polyamide PA12, polyamide POM, polyurethane, copper, brass, and organic material.