Coupling unit for connecting a drive to an output, - having a connecting device on the drive side, such as a flange, which has an axis of rotation on the drive side and is provided with a plurality of fastening means on the drive side which are all arranged in a common radial plane of the axis of rotation and on a common radius around the axis of rotation of the connecting device on the drive side; - having a connecting device on the output side, such as a flange, which has an axis of rotation on the output side and is provided with a plurality of fastening means on the output side which are all arranged in a common radial plane of the axis of rotation and on a common radius around the axis of rotation of the connecting device on the output side; - and having connecting elements (117, 217), such as links or coupling rods, which are arranged, on the one hand, on a fastening means on the drive side and, on the other hand, on a fastening means on the output side by means of a spherical joint connection, characterised in that - the radius on which the fastening means on the drive side are arranged around the axis of rotation on the drive side, and the radius on which the fastening means on the output side are arranged around the axis of rotation on the output side are identical in amount; - that the fastening means on the drive side, and the fastening means on the output side which is coupled to said fastening means by means of a connecting element (117, 217), are arranged so as to be peripherally spaced apart from one another, with respect to the axis of rotation on the drive side, by 80 degrees to 100 degrees, in particular 85 degrees to 95 degrees, in particular by substantially 90 degrees. - having a connecting device on the drive side, such as a flange, which has an axis of rotation on the drive side and is provided with a plurality of fastening means on the drive side which are all arranged in a common radial plane of the axis of rotation and on a common radius around the axis of rotation of the connecting device on the drive side; - having a connecting device on the output side, such as a flange, which has an axis of rotation on the output side and is provided with a plurality of fastening means on the output side which are all arranged in a common radial plane of the axis of rotation and on a common radius around the axis of rotation of the connecting device on the output side; - and having connecting elements (117, 217), such as links or coupling rods, which are arranged, on the one hand, on a fastening means on the drive side and, on the other hand, on a fastening means on the output side by means of a spherical joint connection, - the radius on which the fastening means on the drive side are arranged around the axis of rotation on the drive side, and the radius on which the fastening means on the output side are arranged around the axis of rotation on the output side are identical in amount; - that the fastening means on the drive side, and the fastening means on the output side which is coupled to said fastening means by means of a connecting element (117, 217), are arranged so as to be peripherally spaced apart from one another, with respect to the axis of rotation on the drive side, by 80 degrees to 100 degrees, in particular 85 degrees to 95 degrees, in particular by substantially 90 degrees.