Abstract: A shaft coupling working on the principle of an Oldham's coupling in which rotary members are connected by pairs of guide links (20,26). Additional guide links (28,38), displaced at an angle of 90.degree. to one another, are provided between the first rotary member (14) and the intermediate member (16) and between the intermediate member (16) and the second rotary member (18). The pivotal axes of the additional guide links extend in a crossed direction to the rotational axis of these members. These additional guide links provide resistance against axial forces in the coupling but do permit the coupling to operate with radial misalignment of the input and output shaft.