The ball race (1) periphery facing away from the track (9) protrudes beyond the metal edging ring (3) whose periphery forms a seating surface (11) in this area. The annular space between the ball race periphery and the edging ring seating surface contains a plastics filler ring (4) forming a common cylindrical surface together with the seating surface which is eccentrically positioned in relation to the track.The edging ring has a sleeve-shaped seating part (10) and armature holes (12) joining the filler ring and plastics mounting ring (5).
