Planetary roller screw

A planetary roller screw, comprising;

• a nut arranged on a threaded spindle, the nut including two nut parts,
• planetary rollers arranged between the threaded spindle and the nut, the planetary rollers distributed around the circumference of the threaded spindle such that the planetary rollers intermesh with the two nut parts and with the threaded spindle,
• a rotatingly driven planetary roller carrier arranged around the threaded spindle, the planetary roller carrier having pockets arranged around the circumference of the planetary roller carrier, the pockets configured to mountably receive the planetary rollers, the planetary roller carrier further comprises two carrier flanges arranged to be axially spaced apart from one another, and the two carrier flanges are arranged to be axially displaceable relative to each other and include the pockets configured for receiving the planetary rollers, and
• a housing configured to rotatably to rotatably receive the planetary roller carrier, and
• a pre-loading device configured to adjust an axial pre-load or an axial play between the housing and the planetary rollers.