The clutch (10) has a clutch housing (16) provided with a rotatable and axial displaceable pressing plate (18) where the pressing plate moves a lever system supported at another clutch housing (20) opposite to the former clutch housing. A back pressure plate is firmly arranged under spanning of friction linings of a clutch disk to open and close the clutch. Anti-friction surfaces prevent back rotation of a spindle. A spring loaded wedge device clamps the spindle and/or a pinion (34) and integrated with a lock washer of the brake device.
