Abstract: A steer-by-wire steering system for a vehicle includes a bar extending from a first end to a second end, the bar defining a first groove and a second groove within an outer surface of the bar. The steer-by-wire steering system also includes an anti-rotation cartridge comprising a sleeve containing separate wear plates in which a plurality of ball bearings roll, wherein a first end of the sleeve contains a sleeve groove and window features, the inner surface of the sleeve containing V-shaped grooves in which the wear plates are disposed.

Abstract: A steer-by-wire steering system for a vehicle includes a rack moveable in an axial direction. The steer-by-wire steering system also includes an anti-rotation device disposed proximate an outer surface of the rack. The anti-rotation device includes a yoke having a bearing journal extending therefrom. The anti-rotation device also includes a bearing disposed on the bearing journal. The anti-rotation device further includes a running surface disposed within a rack housing and extending in a longitudinal direction of the rack, wherein the bearing is positioned to move along the running surface during operation.

Abstract: In some embodiments, a polymer film includes a base composition of poly(ethylene-vinyl acetate) and a surface composition comprising hydroxy groups. In some embodiments, a polymer film includes a base layer of a first composition of poly(ethylene-vinyl acetate), a surface layer at a surface of the base layer, and a coating layer of a second composition of a copolymer of glycerol and sebacic acid. The surface layer includes surface hydroxy groups converted from acetate groups of the poly(ethylene-vinyl acetate). The second composition is attached to the surface layer by ester bonds between carboxyl groups of the copolymer and the hydroxy groups. A single-use bioreactor bag includes a polymer film including a base composition of poly(ethylene-vinyl acetate) and a surface composition comprising hydroxy groups. A method of modifying a poly(ethylene-vinyl acetate) film includes converting acetate groups at a first surface of the poly(ethylene-vinyl acetate) film to hydroxy groups.

Abstract: A steer-by-wire system for a vehicle includes a rack moveable in an axial direction and defining a groove extending in the axial direction of the rack. The steer-by-wire system also includes a housing surrounding at least a portion of the rack. The steer-by-wire system further includes an anti-rotation device disposed proximate an outer surface of the rack at the mounting location of the rack and within the housing. The anti-rotation device includes a plurality of balls disposed in the groove defined by the rack. The anti-rotation device also includes a running plate having a radially inner surface disposed radially outward of the rack, wherein the plurality of balls are disposed between the plate and the rack.

Abstract: A steer-by-wire steering system for a vehicle includes a rack moveable in an axial direction. The steer-by-wire steering system also includes an anti-rotation mechanism disposed proximate an outer surface of the rack at the mounting location of the rack. The anti-rotation mechanism includes a yoke having a bearing journal extending therefrom. The anti-rotation mechanism also includes a bearing disposed on the bearing journal of the yoke. The anti-rotation mechanism further includes a running plate structure disposed within a rack housing and extending in a longitudinal direction of the rack, wherein the bearing and the yoke are positioned to move along a surface of the running plate structure during movement of the rack in the axial direction.

Abstract: A rack and pinion steering system includes a rack housing, a rack bearing, and an adjuster plug. The rack housing defines a rack housing bore extending along an axis. The rack bearing is disposed within the rack housing bore. The rack bearing has a first bearing portion that is biasingly connected to a second bearing portion. The first bearing portion and the second bearing portion extend along the axis between a first rack bearing end and a second rack bearing end. The adjuster plug is disposed within the rack housing bore. The adjuster plug extends along the axis between a first adjuster plug end that engages the second rack bearing and a second adjuster plug end.

Abstract: An electric powered recirculating ball assembly includes a shaft having a plurality of sector teeth extending therefrom. The assembly also includes an eccentric sleeve defining a bore containing a portion of the shaft, the eccentric sleeve comprising an upper sleeve segment and a lower sleeve segment that are separate components, the eccentric sleeve defining an opening that the sector teeth extend through.

Abstract: A steering system includes a steering column for rotation between at least a center position and a range of second positions and defining a central axis. The steering system also includes an actuator assembly in operative communication with the steering column to provide steering assistance, the actuator assembly comprising a pair of plates, each plate including a first helical track and a second helical track. The steering system further includes a spring element arranged with the actuator assembly to bias movement of one of the pair of plates along the central axis to influence the steering column to move to the center position.

Abstract: An electric powered recirculating ball assembly includes a shaft having a plurality of sector teeth extending therefrom. The assembly also includes an eccentric sleeve defining a bore containing a portion of the shaft, the eccentric sleeve comprising an upper sleeve segment and a lower sleeve segment that are separate components, the eccentric sleeve defining an opening that the sector teeth extend through.

Abstract: An electric power steering drive pulley assembly includes a motor shaft. The pulley assembly also includes a drive pulley coupled to the motor shaft. The drive pulley includes a radial retention portion having an inner diameter defining a first portion of a central opening that the motor shaft is disposed within. The drive pulley also includes an axial retention portion extending in the axial direction from the radial retention portion, the axial retention portion defining a second portion of the central opening that the motor shaft is disposed within, the inner diameter of the axial retention portion in splined engagement with the motor shaft to rotationally couple the drive pulley to the motor shaft, the axial retention portion including a flange protruding radially inwardly from the inner diameter of the axial retention portion to be disposed in a groove of the motor shaft.

Abstract: A rack and pinion steering system includes a rack housing, a rack bearing, and an adjuster plug. The rack housing defines a rack housing bore extending along an axis. The rack bearing is disposed within the rack housing bore. The rack bearing has a first bearing portion that is biasingly connected to a second bearing portion. The first bearing portion and the second bearing portion extend along the axis between a first rack bearing end and a second rack bearing end. The adjuster plug is disposed within the rack housing bore. The adjuster plug extends along the axis between a first adjuster plug end that engages the second rack bearing and a second adjuster plug end.

Abstract: A power steering system includes a rack housing arranged to receive a longitudinally displaceable rack member. The system also includes an assist cover connected to the rack housing, the rack housing and the assist cover defining a cavity. The system further includes an assist assembly at least partially disposed within the cavity. The assist assembly includes a power pack connected to at least one of the rack housing and the assist cover, the power pack having a power pack shaft extending therefrom. The assist assembly also includes a drive pulley having a drive pulley shaft that extends between the rack housing and the assist cover, the drive pulley shaft and the power pack shaft separate shafts and operatively coupled to each other. The assist assembly further includes a driven pulley disposed about the rack member.

Abstract: A rack and pinion steering system includes a rack housing, a rack bearing, and an adjuster plug. The rack housing defines a rack housing bore extending along an axis. The rack bearing is disposed within the rack housing bore. The rack bearing has a first bearing portion that is biasingly connected to a second bearing portion. The first bearing portion and the second bearing portion extend along the axis between a first rack bearing end and a second rack bearing end. The adjuster plug is disposed within the rack housing bore. The adjuster plug extends along the axis between a first adjuster plug end that engages the second rack bearing and a second adjuster plug end.

Abstract: A power steering assembly is provided. The power steering assembly may include a housing, a first bearing, a second bearing, a worm, and a worm gear. The first bearing is disposed within the housing and defines a first central axis. The second bearing is disposed within the housing and defines a second central axis offset from the first central axis. The first bearing and the second bearing are arranged with the housing such that the second bearing is movable to align the first central axis with the second central axis responsive to a load applied to the second bearing.

Abstract: A power steering system includes a rack housing arranged to receive a longitudinally displaceable rack member. The system also includes an assist cover connected to the rack housing, the rack housing and the assist cover defining a cavity. The system further includes an assist assembly at least partially disposed within the cavity. The assist assembly includes a power pack connected to the rack housing, the power pack having a power pack shaft extending therefrom. The assist assembly also includes a drive pulley coupled to the power pack shaft. The assist assembly further includes a single bearing disposed within a bore defined by the drive pulley. The assist assembly yet further includes a mechanical fastener coupling the drive pulley to the assist cover. The assist assembly also includes a driven pulley disposed about the rack member.

Abstract: A rack and pinion steering system includes a housing, a rack, a pinion gear, and a radially preloaded rack bearing. The rack is supported by the housing, and the pinion gear is meshed to the rack. The radially preloaded rack bearing is supported and preloaded to the housing and is preloaded to the rack.

Abstract: An electric power steering drive pulley assembly includes a motor shaft. The pulley assembly also includes a drive pulley coupled to the motor shaft. The drive pulley includes a radial retention portion having an inner diameter defining a first portion of a central opening that the motor shaft is disposed within. The drive pulley also includes an axial retention portion extending in the axial direction from the radial retention portion, the axial retention portion defining a second portion of the central opening that the motor shaft is disposed within, the inner diameter of the axial retention portion in splined engagement with the motor shaft to rotationally couple the drive pulley to the motor shaft, the axial retention portion including a flange protruding radially inwardly from the inner diameter of the axial retention portion to be disposed in a groove of the motor shaft.

Abstract: A power steering system includes a rack housing arranged to receive a longitudinally displaceable rack member. The system also includes an assist cover connected to the rack housing, the rack housing and the assist cover defining a cavity. The system further includes an assist assembly at least partially disposed within the cavity. The assist assembly includes a power pack connected to the rack housing, the power pack having a power pack shaft extending therefrom. The assist assembly also includes a drive pulley coupled to the power pack shaft. The assist assembly further includes a single bearing disposed within a bore defined by the drive pulley. The assist assembly yet further includes a mechanical fastener coupling the drive pulley to the assist cover. The assist assembly also includes a driven pulley disposed about the rack member.

Abstract: A steering system includes a steering column for rotation between at least a center position and a range of second positions and defining a central axis. The steering system also includes an actuator assembly in operative communication with the steering column to provide steering assistance, the actuator assembly comprising a pair of plates, each plate including a first helical track and a second helical track. The steering system further includes a spring element arranged with the actuator assembly to bias movement of one of the pair of plates along the central axis to influence the steering column to move to the center position.

Abstract: A rack and pinion steering system includes a housing, a rack, a pinion gear, and a radially preloaded rack bearing. The rack is supported by the housing, and the pinion gear is meshed to the rack. The radially preloaded rack bearing is supported and preloaded to the housing and is preloaded to the rack.