Ball screw drive

A ball screw drive (100), comprising:

• a threaded spindle (110);
• a spindle nut (120) which at least partially encloses the threaded spindle (110) coaxially, the spindle nut has a substantially cylindrical lateral surface (130);
• at least two radially outwardly open channels (150, 150′) which are simultaneously pressed into the lateral surface and are oriented axially in parallel, said open channels (150, 150′) are open toward a common front face (160) of the spindle nut (120);
• a plurality of balls (140) which circulate in a helical ball race (170) in the intermediate space between the threaded spindle (110) and the spindle nut (120);
• at least one ball return guide (200) with two ball deflectors (210, 210′) and a transfer channel (220) running therebetween;
• wherein, depending on a rotational direction of the ball screw drive (100), the balls (140) are radially lifted out of the ball race (170) and deflected into the transfer channel (220) by one of the ball deflectors (210) and after passing through the transfer channel the balls are guided out of the transfer channel (220) back into the ball race (170) by the other of the ball deflectors (210′);
• a drive element (300) which is operatively connected coaxially to the spindle nut (120) via an operative connection and is designed to apply a torque onto the spindle nut (120);
• the operative connection between the drive element (300) and the spindle nut (120) is formed at least by a contact surface (180) with a connecting contour and a catch element (310) which is designed such that in an assembled state the catch element engages in one of the channels (150, 150′) of the spindle nut (120);
• and the at least one ball return guide uses one of the open channels as the transfer channel.