A wheel hub assembly for tension spoke wheels is provided. The wheel hub assembly has a construction that automatically adjusts the position of the axle bearings along the rotational axis of the hub assembly to take-up slack between the axle bearings and the hub shell to prevent wheel wobble.

A pre-tensioned bearing assembly, including: a first rolling bearing including a first outer ring, first inner ring including a first conical surface, and a plurality of rolling elements radially disposed between the first inner and outer rings; a second rolling bearing including a second outer ring, a second inner ring including a second conical surface, and a plurality of rolling elements radially disposed between the second inner and outer rings; a shaft including a shoulder in contact with the second rolling bearing; a first conically-shaped sleeve in contact with the first conical surface and the second conical surface, and including a cylindrical inner surface; a second conically-shaped sleeve in contact with the cylindrical inner surface; and a shaft nut including an internal thread in cooperation with the shaft, and fixing the first inner ring and the second inner ring axially onto the shaft.

A wedge for securing a bearing and a bearing sleeve to an end bell of a rotating electric machine includes an annular base extending about a centerline and having an inner surface defining an opening through the base for receiving the bearing and the bearing sleeve. The base includes opposing first and second ends spaced circumferentially from one another by a gap for allowing relative movement therebetween during securing of the bearing and the bearing sleeve to the end bell.

A journal bearing comprising a central member and at least a first end member separated from the central member by a first undercut having an undercut diameter U1, an outer cylindrical surface of the first end member being axially spaced from an outer cylindrical surface of the central member, wherein the outer cylindrical surface of the first end member has a diameter A, the outer cylindrical surface of the central member has a diameter B, and wherein diameter B is greater than diameter A, and diameter A is greater than diameter U1.

Disclosed herein is a rescue bearing, in accordance with some embodiments. Accordingly, the rescue bearing comprises an outer ring, an inner ring, rolling elements, and fastening elements. Further, the inner ring comprises a middle portion and opposing side portions. Further, a first side portion of the opposing side portions extends axially from a first side end of the middle portion beyond a first outer ring edge of the outer ring. Further, a second side portion of the opposing side portions extends axially from a second side end of the middle portion beyond a second outer ring edge of the outer ring. Further, the inner ring is configured for receiving a shaft into a bore of the inner ring based on inserting the shaft into the bore. Further, the opposing side portions is configured to be fastened to the shaft using the fastening elements.

A bearing support arrangement for a wind turbine includes a support structure and a bearing housing. The bearing housing is arranged within the support structure. The arrangement further includes a bearing radially supported by the bearing housing. A rotor shaft is radially supported by the bearing and a removable wedge is arranged between the support structure and the bearing housing to clamp the bearing between the rotor shaft and the bearing housing. A method for mounting the bearing support arrangement for a wind turbine is also disclosed as is a wind turbine incorporating the bearing support arrangement.

The invention relates to a drive unit (10) for a vehicle comprising an electric machine (12) having a rotor shaft (14) and a transmission (16) with a transmission shaft (18), wherein the transmission shaft (18) is rotatably mounted in a first housing section (22) by means of a first rolling bearing (20) and the rotor shaft (14) is rotatably mounted in a second housing section (26) by means of a rolling second bearing (24). According to the invention, the transmission shaft (18) and the rotor shaft (14) are coupled to another in a rotationally fixed manner, wherein a third rolling bearing (28) which has an inner bearing ring (30) is arranged at the transition between the transmission shaft (18) and the rotor shaft (14), wherein the inner bearing ring (30) is in contact with the rotor shaft (14) and the transmission shaft (18) with its inner surface (32).

A bearing unit configured to be clamped on a machine shaft includes a stationary radially outer ring, a rotatable radially inner ring having a radially inner surface, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, and a clamping device that includes a clamping sleeve between the radially inner ring and the machine shaft, the clamping sleeve including a threaded flange portion and a circumferential slit configured to deform and tighten around the machine shaft, and a ring nut to screw onto the threaded flange portion and exert an axial force on the radially inner ring, the radially inner surface of the radially inner ring engages the radially outer surface of the clamping sleeve.

A spherical bearing assembly includes a shaft extending through an opening of an inner ring, the inner ring having a spherically curved outer surface, a clamping sleeve on the shaft, the clamping sleeve extending through the opening of the inner ring, and an outer ring having an inner surface complementary to the outer surface of the inner ring. The inner ring is mounted in the outer ring with the outer surface of the inner ring slidably supported by the inner surface of the outer ring.

A radial positioning device is disclosed. The radial positioning device can include a body. The body can include a circumferential surface having a spring location and at least one interface portion operable to interface with a mating component. The body can also have a recess with a depth that varies relative to the circumferential surface about the body. The radial positioning device can also include a spring disposed in the recess. The spring can have a radial dimension greater than the depth of the recess at the spring location. The spring can be operable to contact the mating component at the spring location and compress in the radial dimension to provide a spring force that biases the at least one interface portion and the mating component against one another.