A propulsion assembly includes a rotor assembly, a mast coupled to the rotor assembly and a bull gear coupled to the mast. The bull gear is subject to radial and axial loads. The propulsion assembly includes a flexured standpipe extending through the bull gear and a ball bearing including inner and outer races interposed between the bull gear and the flexured standpipe. The ball bearing is configured to absorb axial loads from the bull gear. The bull gear is rotatably coupled to the flexured standpipe via the ball bearing. The flexured standpipe flexes in response to radial loads from the bull gear.

A propulsion assembly includes a rotor assembly, a mast coupled to the rotor assembly and a bull gear coupled to the mast. The bull gear is subject to radial and axial loads. The propulsion assembly includes a flexured standpipe extending through the bull gear and a ball bearing including inner and outer races interposed between the bull gear and the flexured standpipe. The ball bearing is configured to absorb axial loads from the bull gear. The bull gear is rotatably coupled to the flexured standpipe via the ball bearing. The flexured standpipe flexes in response to radial loads from the bull gear.

A dielectric insulating insert assembly arranged to be positioned between a drive shaft and a driven shaft of a motorised drive assembly, the insert assembly comprising a plurality of elongate pins of dielectric material configured to engage, respectively, with the drive shaft and the driven shaft in torque transfer engagement, the pins providing a dielectric barrier between the drive shaft and the driven shaft.

A dielectric insulating insert assembly arranged to be positioned between a drive shaft and a driven shaft of a motorised drive assembly, the insert assembly comprising a plurality of elongate pins of dielectric material configured to engage, respectively, with the drive shaft and the driven shaft in torque transfer engagement, the pins providing a dielectric barrier between the drive shaft and the driven shaft.

A wheel bearing assembly for rotatably mounting and supporting a wheel to a vehicle body may comprise a wheel hub; at least one inner ring;; an outer ring; and one or more rolling elements. An accommodation space in which a constant velocity joint is accommodated may be formed in a vehicle-body-side end portion of the wheel hub, and one or more recesses for accommodating rolling members of the constant velocity joint may be provided in an inner peripheral surface of the accommodation space along a circumferential direction. A boot fastening ring may be mounted on the wheel hub to mount a rubber boot configured to prevent foreign matters from flowing into the accommodation space. The boot fastening ring may comprise a spline portion on an inner peripheral surface thereof, the spline portion may be coupled to a corresponding spline portion formed on an outer peripheral surface of the wheel hub.

A wheel bearing assembly for rotatably mounting and supporting a wheel to a vehicle body may comprise a wheel hub; at least one inner ring;; an outer ring; and one or more rolling elements. An accommodation space in which a constant velocity joint is accommodated may be formed in a vehicle-body-side end portion of the wheel hub, and one or more recesses for accommodating rolling members of the constant velocity joint may be provided in an inner peripheral surface of the accommodation space along a circumferential direction. A boot fastening ring may be mounted on the wheel hub to mount a rubber boot configured to prevent foreign matters from flowing into the accommodation space. The boot fastening ring may comprise a spline portion on an inner peripheral surface thereof, the spline portion may be coupled to a corresponding spline portion formed on an outer peripheral surface of the wheel hub.

A universal joint includes a first joining structure and a second joining structure movably coupled to each other. The first and the second joining structures are movable relative to each other to an aligned position and an inclined position. The first and the second joining structures include a resilient member disposed therebetween. The resilient member has a first end retained on the first joining structure and a second end retained on the second joining structure.

A universal joint includes a first joining structure and a second joining structure movably coupled to each other. The first and the second joining structures are movable relative to each other to an aligned position and an inclined position. The first and the second joining structures include a resilient member disposed therebetween. The resilient member has a first end retained on the first joining structure and a second end retained on the second joining structure.

A mechanical joint for transferring rotational motion between shafts at an angle and related assemblies. The assemblies can include both fixed and adjustable-angle joint housings for providing high torques in hard to reach areas. Other assemblies include improvements in inboard marine drives that correct the prop angle to generally align with the direction of travel of the boat and outboard marine drives with improved drive trains.

A mechanical joint for transferring rotational motion between shafts at an angle and related assemblies. The assemblies can include both fixed and adjustable-angle joint housings for providing high torques in hard to reach areas. Other assemblies include improvements in inboard marine drives that correct the prop angle to generally align with the direction of travel of the boat and outboard marine drives with improved drive trains.