PLANETARY ROLLER SCREW DRIVE, AND ACTUATOR FOR A REAR AXLE STEERING SYSTEM OF A MOTOR VEHICLE WITH A PLANETARY ROLLER SCREW DRIVE OF THIS TYPE

摘要

A planetary roller screw drive, with a threaded spindle (1), and with a nut element (20) which is arranged on the threaded spindle (1), and with planets (4) which are arranged distributed over the circumference of the threaded spindle (1) and mesh firstly with the threaded spindle (1) and secondly with the nut element (20) which is mounted such that it can be rotated in both axial directions in each case by means of a first bearing (26) on a rotationally driven planetary carrier (21) which receives the planets (4) and is mounted such that it can be rotated on a housing (28) by means of a second bearing (29). The planetary carrier (21) has a sleeve (32) which engages around the nut element (20) and at the axial ends of which in each case a flange (23) with in each case a first bearing seat (30) of the first bearing (26) and with a second bearing seat (31) of the second bearing (29) is arranged, wherein the flanges (23) are connected fixedly to one another by means of the sleeve (32) so as to rotate together and such that they are subject to play axially with an actuating play.