The invention relates to a divided driver device (5) for a slip ring seal to be mounted in a rotationally fixed manner on a rotating part and serving to transfer a rotatory force to a slip ring (2) that is held in a rotationally fixed manner on the driver device. The driver device (5) is divided in at least one radial plane while forming circle segment-shaped sections that can be joined to one another to form a circular shape, and is also axially subdivided into a divided retaining ring (14) for the slip ring (2) and into a divided mounting ring (16) for mounting in a rotationally fixed manner on the rotating part. The rings (14, 16) are intercoupled as indicated by (24) so that they rotate together. The retaining ring (14) has circle segment-shaped sections (141, 142), which are sealed from one another, can be joined to from an annular shape having a radial inner dimension that is greater than the radial outer nominal dimension of the relevant rotating part (6). These circle segment-shaped sections (141, 142) have peripherally oriented faces (151, 152), which are preferably in metal-to-metal contact with one another and which have a surface finish that seals them from one another.