A device for a steering system of a motor vehicle for pressing a toothed rack against a drive pinion is specified, the device having a housing and a thrust piece which is mounted displaceably in the housing and which has a circumferential wall which is in contact with the housing, the thrust piece having, on its circumferential wall, at least one depression which runs in a circumferential direction at least in certain portions and which delimits a hollow chamber arranged between thrust piece and housing.

A ball screw drive having a hollow spindle is designed for ease of manufacture. A threaded outer part is joined to an inner sleeve by a press fit joint. The inner sleeve may be made of a softer material than the outer part. The inner sleeve includes a collar that projects beyond the outer part. The collar includes at least one stop element and may have teeth. The stop elements may interact with a stop contour of a ball screw nut and/or with anti-rotation contours of a housing.

A steering device includes: a housing; and a spring configured to urge the retainer toward the rack bar in the second axis direction, and the rack bar, the retainer, the spring, and the spring holding member being disposed in this order in the second axis direction; the retainer chamfering portion provided on the retainer second end portion near the spring holding member, on a retainer second end portion outer circumference portion, and the retainer chamfering portion formed at a portion which is nearest the spring holding member abutment surface in the retainer second end portion outer circumference portion in a section that passes through the second axis, and that is perpendicular to the first axis, when the retainer main body portion is inclined with respect to the second axis.

A sliding bearing 1 which is interposed between a tube 4 and a rack shaft 7 includes a bearing body 11 and two elastic rings 13 and 14 fitted on an outer surface 12 of the bearing body 11, and the bearing body 11 has slits 26 extending from an end face 22 to this side of an end face 24, slits 27 extending from the end face 24 to this side of the end face 22, an inner surface 33 having a sliding surface 28, and an outer surface 12 on which are formed grooves 34 respectively receiving the elastic rings 13 and 14 and projections 35 and 36 respectively provided on axial end portions 23 and 25 with the grooves 34 disposed therebetween.

A rack guide bearing for meshing a pinion and vehicle steering system rack, the guide bearing including a wall, a first portion is tubular and defines an axis and internal channel around the axis opening at the guide bearing first end, and opening onto a second portion of the wall opposite the first end, an internal channel section transverse to the axis and inserts the rack into the channel according to the rack axis parallel to the guide bearing axis, the guide bearing including an internal channel inner surface of the guide bearing wall's first portion and an inner surface of the guide bearing wall's second portion, the inner surfaces are in slipping contact with a slipping surface of the rack opposite to a toothing of the rack, when the rack is inserted inside the first portion of the wall's internal channel according to the axis of the rack.

In a steering system, a guide member faces the rack shaft on the opposite side of the rack shaft from the pinion shaft, and an opposed member faces the guide member at a first distance. The rack shaft is supported by the first rack bush so as to be slidable in the axial direction. The rack shaft is supported so as to be slidable in the axial direction X at a position closer to the guide member than the first rack bush is by the second rack bush disposed away from the inner surface. An elastic member that can be elastically deformed is disposed between the inner surface and the second rack bush. The second rack bush has an opposed portion disposed on the opposite side of the rack shaft from the pinion shaft and facing the inner surface at a second distance that is larger than the first distance.

A sliding bearing 1 which is interposed between a tube 4 and a rack shaft 7 includes a bearing body 11 and two elastic rings 13 and 14 fitted on an outer surface 12 of the bearing body 11, and the bearing body 11 has slits 26 extending from an end face 22 to this side of an end face 24, slits 27 extending from the end face 24 to this side of the end face 22, an inner surface 33 having a sliding surface 28, and an outer surface 12 on which are formed grooves 34 respectively receiving the elastic rings 13 and 14 and projections 35 and 36 respectively provided on axial end portions 23 and 25 with the grooves 34 disposed therebetween.

A rack bar supporting device is a device for supporting a rack bar of a steering apparatus of a vehicle toward a pinion shaft and includes a rack bearing and a biasing assembly. The biasing assembly includes an adjustment plug, an adjustment assembly and a support plate assembly. The adjustment assembly includes an adjustment member and a first biasing member. The support plate assembly includes a first support plate, a second support plate, a second biasing member which provides a force for pushing the first support plate along the biasing axis against the second support plate, and a connection structure which connects the first and the second support plates together so as to restrict movement of the second plate in a direction away from the rack bearing.

An apparatus for pressing a rack against a pinion of a steering gear assembly includes a housing, a support yoke slidably guided in the housing along an axis, a bearing element that is fixed to the housing in an axial direction, a first elastic element providing an axial load acting upon the support yoke and the bearing element to urge the support yoke against the rack, a wear-compensating abutment member coacting with the bearing element such that a relative rotation about the axis generates an axial displacement of the abutment member relative to the bearing element, and a separate, second elastic element providing a load acting upon the abutment member in a circumferential direction to urge the abutment member against the support yoke.

In a steering system, a guide member faces the rack shaft on the opposite side of the rack shaft from the pinion shaft, and an opposed member faces the guide member at a first distance. The rack shaft is supported by the first rack bush so as to be slidable in the axial direction. The rack shaft is supported so as to be slidable in the axial direction X at a position closer to the guide member than the first rack bush is by the second rack bush disposed away from the inner surface. An elastic member that can be elastically deformed is disposed between the inner surface and the second rack bush. The second rack bush has an opposed portion disposed on the opposite side of the rack shaft from the pinion shaft and facing the inner surface at a second distance that is larger than the first distance.