Abstract: Disclosed is an electromagnetically released spring pressure brake that is to be mounted on a machine wall or similar. Said brake comprises a uniform rectangular coil support (1) with two preferably oval, adjacent coils (7, 7.1), to which two separately movable rectangular armature disks are assigned. Said armature disks apply pressure to a joint rotor encompassing two friction linings that are mounted on each side when the coils (7, 7.1) are de-energized. The rotor is axially movable on an axially toothed hub. Two respective fastening screws (9) are used for guiding each of the armature disks parallel along the central longitudinal axis (13, 13.1) thereof, on the radially largest possible diameter of the rotor. A manual lever (10) featuring manual releasing bolts is provided for each armature disk.

Abstract: A quiescent-current-actuated electromagnetic spring pressure brake including torque transmission sleeves disposed between a machine wall and the brake, and an axially movable armature plate having bores along its periphery to receive the torque transmission sleeves. At least one piston guide ring is provided in the area of torque transmission sleeves on the outer periphery of the latter adjacent an O-ring disposed in a groove, said piston guide ring being placed in the groove of said O-ring or in a separate groove and acting to provide a damping action in the circumferential direction and a sliding displacement of the armature plate in the axial direction.

Abstract: Disclosed is an electromagnetically released spring pressure brake that is to be mounted on a machine wall or similar. Said brake comprises a uniform rectangular coil support (1) with two preferably oval, adjacent coils (7, 7.1), to which two separately movable rectangular armature disks are assigned. Said armature disks apply pressure to a joint rotor encompassing two friction linings that are mounted on each side when the coils (7, 7.1) are de-energized. The rotor is axially movable on an axially toothed hub. Two respective fastening screws (9) are used for guiding each of the armature disks parallel along the central longitudinal axis (13, 13.1) thereof, on the radially largest possible diameter of the rotor. A manual lever (10) featuring manual releasing bolts is provided for each armature disk.

Abstract: A torsionally stiff, flexible shaft coupling, an all-steel shaft coupling for transmitting torques between shafts. Shafts with mutually offset axes, having one or two packs of plates (5) which are places on clamping bushes (6) and are clamped on the latter, by a ring (4) in each case, against an end collar (6b) of the clamping bushes (6), the packs of plates (5) being clamped, by screws (2, 7) extending through the clamping bushes (6), alternately in the circumferential direction using the mutually opposite flanges (1a, 8a) of hubs (1, 8) to be coupled to one another, which of packs of plates, in order to achieve the object of increasing the displacement capability of the plates and thus simplifying the assembly and increasing the operational reliability, comprise a circumferential relief groove (4a) and (6a) in each of the rings (4) and/or the collars (6b) of the clamping bushes (6).