Actuated by spring pressure. Released by D.C. (by built-in rectifier direct connection to A.C. possible). Delivery incl. fixing screws, completely mounted and adjusted. Torques 2.7 to 10000 Nm (higher torques on request) Dry operation Outer diameter 91 to 750 mm Two friction faces High torques with smallest dimensions High heat capacity Free from residual torque in open condition with horizontal mounting Free from axial force Requiring less maintenance Simple handling