A non-locating bearing assembly includes a bearing unit configured to support a rotatable component relative to a stationary component, the bearing unit including a first stationary bearing ring and a second rotatable bearing ring. The rotatable bearing ring is fixedly connectable to the rotatable component, and a bearing carrier is attached to the stationary bearing ring in a rotationally fixed but axially displaceable manner by a combination of a friction fit and an interference fit. The bearing carrier is configured to be fixedly connected to the stationary component.

A main bearing unit for supporting the rotor shaft of a wind turbine, including a rolling bearing having an inner ring, an outer ring and a rolling element arrangement received between the outer and inner ring and a coupling arrangement which is designed to couple the rotor shaft to an output shaft of the wind turbine at least indirectly and so as to transmit torque. The rotor shaft is coupled to one of the outer and inner ring so as to transmit torque. The coupling arrangement is coupled so as to transmit torque to the one of the outer and inner ring as the rotor shaft.

A steering system includes a steered shaft, a ball screw nut, balls, a housing, a rolling bearing, and a snap ring configured to prevent the rolling bearing from detaching from the ball screw nut. The rolling bearing includes double-row rolling element arrays, an outer ring, a first inner ring, and a second inner ring. The ball screw nut has a receiving portion. The snap ring contacts a side face of the second inner ring to push the second inner ring toward the receiving portion via the first inner ring. A resistance force received from the second outer peripheral fitting surface when the second inner ring moves in the axial direction in a state in which detachment of the rolling bearing is not prevented by the snap ring is smaller than a pushing force with which the snap ring pushes the second inner ring.

In a lateral cross section passing through a center of a trunnion in the form of a retaining member that constitutes part of a constant velocity joint, and an orthogonal site where a virtual tangent line at a contact region is perpendicular to a longitudinal direction of a guide groove, a curved surface having a first arcuate portion and a second arcuate portion is formed. The second arcuate portion is contiguous with the first arcuate portion, and has a smaller radius of curvature than the first arcuate portion. Further, the first arcuate portion and the second arcuate portion are arranged in this order from a side in proximity to an annular member of the trunnion.

A mobile milling machine includes a cutting rotor disposed along a rotor drum delineating a drum rotation axis and accommodated in a rotor chamber delineated by chamber enclosure. To rotatably support the rotor drum with respect to the chamber enclosure, the rotor drum can include a bearing end and the chamber enclosure can include a bearing bore that are adapted to form a drum bearing assembly. The drum bearing assembly may include a bearing hub and a bushing configured to make a sliding frictional contact along complementary taper surfaces. The floating bushing may be floatingly retained in a chamber door of the chamber enclosure.

An electric motor includes a rotor shaft, a first bearing, and a second bearing. The rotor shaft includes a first rotor shaft part and a second rotor shaft part, the first rotor shaft part being rotatably mounted via the first bearing, and the second rotor shaft part being rotatably mounted via the second bearing. A bellows is connected at its first axial end region to the first rotor shaft part, e.g., by welding, and the bellows is connected at its second axial end region to the second rotor shaft part, e.g., by welding.

An input gear assembly in which the input gear is coupled to the input shaft via a pair of spaced-apart pilot regions of the input shaft. One of the pilot regions is disposed adjacent to one of the bearings used, with the pilot region formed in or on the input shaft itself and engaging a corresponding internal surface of the input gear. Another of the pilot regions is formed in the inner bearing raceway of another of the bearings used, with the pilot region formed as an elongate portion of the inner bearing raceway of the input shaft and engaging another corresponding internal surface of the input gear. For manufacturing simplicity, this additional pilot region and the remainder of the elongate inner bearing raceway have the same material properties, surface treatment, straightness, and cylindricity. This arrangement prevents tilting of the input gear with respect to the input shaft and bearing shaft, thereby enhancing performance.

A roller element device, in particular for a gas turbine engine, comprises an outer ring with an inner raceway, an inner ring with an outer raceway, and roller elements which are arranged between the raceways so as to roll thereon, wherein the outer ring and the inner ring are each connected via a connecting portion to a respective fixing portion for fixing to one of two components which are rotatable relative to each other about a rotation axis, and the connecting portions are formed such that the two raceways can be jointly tilted at least in portions relative to the rotation axis.

A rolling bearing has an inner and an outer bearing ring. Each bearing ring has an inner and an outer shell surface. The roller bearing has rolling elements, which roll on raceways provided on the respective shell surfaces of the bearing rings, and a sealing disc connected to one of the bearing rings and operatively connected in a sealing manner to the other bearing ring. To connect the sealing disc to the bearing ring, one of the shell surfaces of the one bearing ring includes a first connecting means and the sealing disc includes a second connecting means. The first connecting means provide a rotating engagement in which the second connecting means engage in a connected state of the bearing ring and the sealing disc.

A system for an unmanned aerial vehicle can include an altitude control system, which further includes a compressor assembly, a valve assembly, and an electronics assembly. The compressor assembly may include a driveshaft and a bearing assembly configured to rotate the driveshaft. The driveshaft may be formed from a first material and a compressor housing may be formed from a second material. The first and second materials may have different rates of thermal expansion. A dynamic preloading mechanism, such as a flexible plate, may be provided within the compressor assembly to exert a preloading force on the bearing assembly. Throughout the duration of the flight of the unmanned aerial vehicle, the preloading mechanism can continually compensate for differences in rates of thermal expansion between the first and second materials throughout.