A gear device includes an outer cylinder; an internal member at least partially housed in the outer cylinder and configured to rotate relative to the outer cylinder about a predetermined rotation axis; a first main bearing fitted into an annular space formed between the outer cylinder and the internal member; and a second main bearing fitted into the annular space and configured to define the rotation axis in cooperation with the first main bearing. A distance between a first intersection where a load action line of the first main bearing intersects with the rotation axis and a second intersection where a load action line of the second main bearing intersects with the rotation axis is set to fall within a range expressed by a predetermined inequality expression.

A lock nut is useable for setting a bearing to preload or endplay. A plurality of preload markings are circumferentially spaced apart on the nut. The distance between the preload marking corresponding to a preselected amount of preload applied or reduced on said bearing when the nut is (i) tightened to apply a preload force to said bearing or (ii) loosened to reduce a preload force on said bearing, respectively. A plurality of endplay markings are also circumferentially spaced apart on the nut. The distance between the endplay markings, corresponding to a preselected amount of endplay increased or reduced in said bearing when the nut is (i) tightened to reduce endplay on the bearing or (ii) loosened to increase endplay in said bearing. The use of endplay and preload markings enables setting of a bearing on an axle or spindle to either an endplay setting or a preload setting by adjusting the rotation of the lock nut according to the endplay markings or the preload markings, respectively.

The disclosure relates, inter alia, to a rotary anode bearing assembly for an X-ray tube comprising at least one bearing outer ring and rolling elements arranged within the at least one bearing outer ring, which rolling elements roll on the at least one bearing outer ring and enclose a radially inner receiving space for receiving a rotor of an X-ray tube; comprising a bearing housing in which the at least one bearing outer ring is mounted, wherein the bearing housing circumferentially surrounds the at least one bearing outer ring.

The rotary anode bearing assembly according to the disclosure is characterized in that an end face of at least one bearing outer ring or of a caulking ring axially adjoining the bearing outer ring is caulked to an end face of the bearing housing by plastic deformation of material of the bearing housing and/or of the bearing outer ring and/or of the caulking ring.

In a housing that supports a rotating shaft via a rolling bearing which is subjected to predetermined position precompression, a wedge member, the radial thickness of which increases from the leading end towards the base end thereof, is inserted between the housing and the outer circumferential surface of the outer race of the rolling bearing and between the rotating shaft and the inner circumferential surface of an inner race of the rolling bearing, the wedge member being inserted from the leading end thereof along the radial direction of the rotating shaft. The wedge member is fixed by being fastened, ahead in the insertion direction, by bolts and nuts, so that precompression force along with predetermined position precompression is imparted to the rolling bearing.

In accordance with one aspect of the present disclosure, a wheel end apparatus for a vehicle is provided that includes a wheel hub assembly configured to be mounted to a spindle and a wheel hub of the wheel hub assembly. The wheel end apparatus includes a coil of wire and at least one magnet of the wheel hub assembly configured to move relative to one another with rotation of the wheel hub around the spindle. The wheel end apparatus includes a wheel end device operably coupled to the coil of wire to receive electrical power generated by relative movement of the coil of wire and the at least one magnet. Further, the wheel end apparatus includes communication circuitry operably coupled to the wheel end device and configured to wirelessly communicate wheel end device information with a wheel end monitoring device.

A bearing coupler assembly that has a bearing housing sized to at least partially receive a bearing assembly, the bearing housing defining a bearing axis therethrough, a shaft positioned at least partially through the bearing housing along the bearing axis, the shaft defining a shaft lip and a fastener end, the bearing assembly coupling the shaft to the bearing housing so the shaft can rotate about the bearing axis relative to the bearing housing, a fastener configured to be coupled to the fastener end of the shaft, a tone wheel positioned axially along the bearing axis between the fastener and the bearing assembly, the tone wheel having at least one indicator, a sensor coupled to the bearing housing and configured to identify when the indicator passes thereby.

Only an outer spacer (33) is cooled by an outer spacer cooling structure, thereby causing a temperature difference between an inner spacer (32) and the outer spacer (33). According to this temperature difference, an inner ring (37) of a bearing (31) is displaced relatively to an outer ring (38) in a direction in which a preload inside the bearing (31) decreases.

Drivetrain systems and methods are provided. In one example, the drivetrain system includes an interaxle differential (IAD) configured to receive power from a prime mover, a motor configured to drive a planetary gearset, and a ball ramp actuator configured to selectively engage a plurality of plates in a clutch pack of a friction clutch in response to receiving rotational input from the planetary gearset. In an engaged configuration, the friction clutch prevents speed differentiation between a first IAD output and a second IAD output.

A wheel unit for an electric vehicle with a disengageable drive includes a wheel support, a wheel hub rotatably supported by the wheel support, and a wheel pin carried by a member driven by the electric motor and rotatably mounted within the wheel hub, by means of two rolling bearings. A coupling device connects in a releasable way the driven member to the wheel hub. The two rolling bearings that support in rotation the wheel pin have respective outer rings mounted by interference fit within a cylindrical wall of a central opening of the wheel hub, and respective inner rings rigidly connected together by means of a spacer sleeve having a predetermined length. The wheel-hub unit with the two rolling bearings and the spacer sleeve can be assembled before being mounted on the wheel pin.

A wheel end assembly having a spindle, a hub, and a rotary seal assembly. The spindle defines a spindle air passage, a vent passage, and a spindle hole. The hub defines a hub air passage. The rotary seal assembly fluidly connects the spindle air passage to the hub air passage. The vent passage fluidly connects an inboard cavity to the spindle hole.