A deep groove ball bearing providing an inner ring, an outer ring and a plurality of balls being arranged between the inner ring and the outer ring. The inner ring and the outer ring each include a raceway for the plurality of balls. Each raceway encompasses the plurality of balls symmetrically. The deep groove ball bearing is lubricated by a lubricant being arranged on each axial side of the plurality of balls. The raceways are offset in the same axial direction from the axial center of the inner ring and the outer ring such that the raceways are offset to the axial side of the deep groove ball bearing where the shear rate acting on the lubricant is higher than on the other axial side of the deep groove ball bearing.

A bearing box for a rotating roller for supporting or transporting a high-temperature object. The bearing box includes a bearing and seal units disposed therein. A cooling jacket is disposed at an outer periphery of the bearing box so that the cooling jacket covers at least a portion of an axial region of the bearing and at least a portion of an axial region of the seal unit. The cooling jacket has a cooling water inlet and a cooling water outlet, and the bearing box is cooled by cooling water supplied to the cooling jacket through the cooling water inlet.

A track roller assembly includes a wheel body, a bearing, a wheel axle, a cap element, a rotating oil seal, an end cover and an oil body. The wheel body has a thread. The bearing is disposed on the wheel body. The wheel axle is disposed through the bearing. The cap element has a screw corresponding to the thread. One side of the rotating oil seal is connected to the cap element, and another side of the rotating oil seal rotatably abuts the wheel axle. The end cover is connected to the wheel axle. The oil body is limited to an accommodating space formed by the wheel body, the wheel axle, the cap element and the rotating oil seal.

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 taper roller bearing includes: an inner ring, an outer ring, a plurality of taper rollers, and an annular cage. The cage includes a small-diameter annular portion on one axial side, a large-diameter annular portion on the other axial side, and a plurality of column portions. A radial inner surface of the column portion is provided along a second virtual taper surface that is in the vicinity of a first virtual taper surface including a center line of the plurality of taper rollers, across the entire length in the longitudinal direction of the column portion.

A rolling bearing device includes a first bearing section including a first outer ring, a first inner ring, and a plurality of balls, each of which is made of metal, and a second bearing section including a second outer ring, a second inner ring, and a plurality of balls, each of which is made of metal. The first inner ring and the second inner ring are electrically connected to each other, and the first outer ring and the second outer ring are electrically insulated from each other. The first outer ring is provided with an input contact for an electric signal, and the second outer ring is provided with an output contact for the electric signal.

An annular cage provided with a taper roller bearing includes: a small-diameter annular portion, a large-diameter annular portion, and a plurality of column portions which link the small-diameter annular portion and the large-diameter annular portion to each other, and further includes roller retaining portions which prevent taper rollers accommodated in pockets from falling out to the outer side in the radial direction. Each of the roller retaining portions has a shape of a protruding beam that is a fixed end on the column portion side and on the small-diameter annular portion side, extends in the circumferential direction and in a column portion longitudinal direction, and is a free end on the tip end side in the extending direction.

A rolling bearing apparatus includes: a bearing including an inner ring, an outer ring, a plurality of rolling elements, and a cage; and an oil supply unit provided axially adjacent to the bearing. The oil supply unit includes: a tank in which to accumulate lubricant; and a pump provided with a nozzle that emits the lubricant as an oil droplet toward a target of the bearing. The oil supply unit further includes a wind guard covering a passing region of the oil droplet thus emitted from the nozzle and having an opening toward a target side. An inner region of the wind guard, including the passing region, has a passage shape causing an airflow from a nozzle-side toward the opening on the target side where a negative pressure is caused due to a bearing rotation.

A turbocharger comprises: a rolling bearing provided with a plurality of rolling elements arranged between a raceway formed on an inner ring and a raceway formed on an outer ring; and a housing for holding the outer ring. The housing is provided with: a first dam for restricting the outflow of a lubricant through a first discharge passage for discharging the lubricant from the outer ring; and a second dam for restricting the outflow of the lubricant through a second discharge passage for discharging the lubricant from an opening formed so as to be in communication with an axially intermediate portion of the outer ring and with a peripheral wall of a space.

A taper roller bearing includes: an inner ring, an outer ring, a plurality of taper rollers, and an annular cage. The cage includes a small-diameter annular portion on one side in a axial direction, a large-diameter annular portion which is positioned on the other side in the axial direction and on a radial outer side of a large flange of the inner ring, and a plurality of column portions which link the small-diameter annular portion and the large-diameter annular portion. The taper roller bearing has a labyrinth structure which suppresses a flow of lubricating oil to the outside of the bearing from the inside of the bearing between the large flange and the large-diameter annular portion.