Ball screw for use in electromechanical steering system of passenger car, has ball return guiding device formed by housing element, and ball return guiding channel extending through housing element that connects two path openings

摘要

The screw has a nut (5) forming an elongated groove (26) at an outer circumferential section of the nut, where the groove runs parallel to a longitudinal axis of the nut. A ball return guiding device (13) is formed by an elongated housing element (25), which is inserted in the elongated groove at the outer circumferential section. A ball return guiding channel extends through the housing element that connects two path openings. A shaft (2) includes a threaded ball groove provided at an outer periphery of the shaft. An independent claim is also included for an electromechanical vehicle steering system comprising a belt pulley.