The present disclosure provides a compressor and an air conditioner having the same. The compressor includes: a main shaft with a convex portion and a slip sheet; a cylinder; and an air inlet and outlet device including a disk body and an air suction port including an outer side, an inner side and a connecting side located between the outer side and the inner side, wherein the outer side is overlapped with an inner wall of the cylinder or is located on the inner side of the inner wall of the cylinder, the inner side is overlapped with an outer wall of the convex portion or is located on the outer side of the convex portion, and the connecting side is overlapped with a side wall of the slip sheet or is located on the inner side of the side wall of the slip sheet.

A steering gear mechanism is disclosed for a steering system of a motor vehicle including at least a housing, a gear wheel, a pinion intermeshing with the gear wheel and a pinion shaft comprising the pinion. The pinion shaft is mounted on one side of the pinion in a fixed bearing, which includes a pivot bearing, in which the pinion shaft is received. The pivot bearing itself is received in a fixed bearing sleeve. The fixed bearing comprises a pivot ring, which has an outer ring and an inner ring, which are connected to each other by way of one or more torsion webs in such a manner that pivoting about a pivot axis defined by the one or more torsion webs is enabled, the inner ring being received in the fixed bearing sleeve and the outer ring being mounted within the housing.

A motor driven omnidirectional treadmill that allows users to walk, jog, or run in any direct ion. When the treadmill is coupled with computer-generated immersive environments users can maneuver their way on-foot through 360-degree VR environments of infinite expanse and scope.

A steering gear mechanism is disclosed for a steering system of a motor vehicle including at least a housing, a gear wheel, a pinion intermeshing with the gear wheel and a pinion shaft comprising the pinion. The pinion shaft is mounted on one side of the pinion in a fixed bearing, which includes a pivot bearing, in which the pinion shaft is received. The pivot bearing itself is received in a fixed bearing sleeve. The fixed bearing comprises a pivot ring, which has an outer ring and an inner ring, which are connected to each other by way of one or more torsion webs in such a manner that pivoting about a pivot axis defined by the one or more torsion webs is enabled, the inner ring being received in the fixed bearing sleeve and the outer ring being mounted within the housing.

A rotary shaft locking device includes a rotary shaft, a first angular contact ball bearing, a support, and an actuator. The rotary shaft is rotatable about a first axis and has a first contact surface. The first angular contact ball bearing includes an inner ring connected to the rotary shaft, an outer ring, and a plurality of balls disposed between the inner ring and the outer ring. The support has a second contact surface and rotatably supports the rotary shaft via the first angular contact ball bearing. The actuator is configured to move the rotary shaft and the inner ring with respect to the support and the outer ring in a first direction parallel to the first axis so that the first contact surface contacts the second contact surface to prohibit the rotary shaft from rotating and so that precompression that acts on the plurality of balls is reduced.

There is disclosed a bearing assembly structure, comprising: a bearing assembly comprising an outer surface having a convex profile; a seating ring having an inner surface having a concave profile, wherein the bearing is fitted within the seating such that the convex profile of the outer surface of the bearing assembly fits within the concave profile of the inner surface of the seating ring.

A radial bearing apparatus including a housing with a housing bore defining a radial bearing housing surface, a shaft extending through the housing bore and defining a radial bearing shaft surface, and a radial bearing contact interface between the radial bearing housing surface and the radial bearing shaft surface for bearing a variable side force applied to the shaft. The radial bearing contact interface includes an oblique section in which the radial bearing housing surface and the radial bearing shaft surface are oblique to each other when the side force is zero and progressively increase in contact in an axial direction in response to an increasing magnitude of the side force.

A cylindrical roller bearing includes at least one outer ring with a raceway, an inner ring with a raceway, and a plurality of cylindrical roller elements rollable along the raceways of the inner ring and the outer ring. The raceway of the inner ring has an at least partly crowned profile, the crowned profile having a crowning radius R and is formed such that: 25 L.sup.2/D < R < 55 L.sup.2/D, in which L is the length of each one of the cylindrical roller elements and D is the diameter of each one of the cylindrical roller elements.

A cylindrical roller bearing includes at least one outer ring with a raceway, an inner ring with a raceway, and a plurality of cylindrical roller elements rollable along the raceways of the inner ring and the outer ring. The raceway of the inner ring has an at least partly crowned profile, the crowned profile having a crowning radius R and is formed such that: 25 L.sup.2/D < R < 55 L.sup.2/D, in which L is the length of each one of the cylindrical roller elements and D is the diameter of each one of the cylindrical roller elements.

A rotary valve including a housing with a removable housing cover, a rotor within the housing which is at least partially placeable outside the housing by detaching and displacing the housing cover away from the housing so as to enable access for cleaning or inspection of the rotary valve, wherein an end portion of a shaft of the rotor is mounted in a bearing assembly supported by the housing cover, which bearing assembly comprises a first bearing and a second bearing that are adjustable in position so as to maintain the shaft of the rotor in a level orientation with reference to the housing when the housing cover is moved away from the housing, wherein the first bearing and the second bearing are movable with respect to each other in a direction transversely to a longitudinal direction of the shaft.