BEARING UNIT WITH INTEGRATED NUT, AND ACTUATOR COMPRISING SUCH UNIT

摘要

A bearing unit (1) with integrated nut (6) for a ball screw mechanism comprises an outer ring (3) with two raceways (4, 5) which are spaced in axial direction, an inner ring (30) with correspondingly spaced raceways (7, 8), and two sets of balls (9, 10) which are each accommodated in a pair of radially opposite raceways (4, 5, 7, 8) of the outer ring (3) and the inner ring, said inner ring (30) at its inner surface having a screw thread (2), for accommodating the balls or rollers of a ball (11) respectively roller screw mechanism (12), at least one insert being provided for passing the screw mechanism balls (11) or rollers from one screw thread part to a neighbouring screw thread part, said insert (13) being positioned between the raceways (7, 8) of the inner ring (30).