A bearing device includes a first outer ring member and a second outer ring member which include a raceway surface in each inner circumferential surface and are disposed to abut on each other in an axial direction, a coupling ring which fixes the first outer ring member and the second outer ring member to each other, an inner ring in which two rows of raceway surfaces are formed in an outer circumferential surface, and a plurality of rolling elements which are disposed in a space formed between the raceway surface of the first outer ring member and one of the two rows of the raceway surfaces of the inner ring, and in a space formed between the raceway surface of the second outer ring member and the other one of the two rows of the raceway surfaces of the inner ring.

A main shaft bearing assembly for use in a sequential gearbox transmission. The main shaft bearing assembly includes a main shaft having an input spline that extends out of the transmission housing and a main shaft gear positioned within the transmission housing. A main drive gear is concentrically aligned with and positioned around the main shaft. The main drive gear has a cylindrical section that extends partially out of the transmission housing and a gear section positioned within the transmission housing. There is a roller bearing assembly for providing a bearing surface between the transmission housing and the main drive gear. The tapered roller bearing assembly is concentrically aligned with the main shaft and the main drive gear, and the tapered roller bearing assembly is positioned around the cylindrical section of the main drive gear. The tapered roller bearing assembly has a plurality of cylindrical rollers which are preferably tapered.

A lubrication ring for the transport of a lubricant from a lubricant container in a bearing, the lubrication ring to be driven by a rotating shaft, which is borne by the bearing. The lubrication ring includes a running surface configured to interoperate with the shaft, and a transport surface configured to transport lubricant, the transport surface having a plurality of pockets to transport of the lubricant, the plurality of pockets arranged adjacent to each other in a circumferential direction of the lubrication ring.

An axial brushless DC motor comprising a stator, a rotor including a magnet, a sleeve bushing extending through the stator and including a pair of opposed distal collars, a motor shaft extends through the sleeve bushing, and a pair of opposed bearings are seated in the respective pair of collars and mount the shaft and a rotor for rotation relative to the sleeve bushing and the stator. The bearings are adapted for thrust, radial support/self-alignment, and angular adjustment of the motor shaft. In one embodiment, a stator overmold member includes a central tube that defines the sleeve bushing and includes a stator shorting ring. In one embodiment, a metal pole piece is seated in a cup-shaped magnet with a rim and the magnetic flux travels through the rim of the magnet and through a magnetic flux sensor.

In a thrust washer for the axial securing of rolling elements of a bearing, and a gear mechanism including a thrust washer, the thrust washer is arranged as a circular disk, which has an axially protruding, in particular radially outer, projection. The circular disk has a recess, which is disposed out of center, i.e., the center point of the, e.g., circular recess thus particularly being set apart from the center axis and/or from the center point of the circular disk. The projection may have an annular shape, and the ring axis is set apart from the center point of the, e.g., circular recess.

A bearing device includes: a first outer ring member and a second outer ring member which include a raceway surface in each inner circumferential surface and are disposed to abut on each other in an axial direction; a connection ring which fixes the first outer ring member and the second outer ring member to each other; an inner ring in which two rows of raceway surfaces are formed in an outer circumferential surface; and a plurality of rolling elements which are disposed in a space formed between the raceway surface of the first outer ring member and one of the two rows of the raceway surfaces of the inner ring, and in a space formed between the raceway surface of the second outer ring member and the other one of the two rows of the raceway surfaces of the inner ring.

A centrifugal compressor (1) that includes: an auxiliary bearing (7) which supports a shaft (2), which is supported by a magnetic bearing (6), when the shaft (2) is displaced from a reference position; and a stopper (8) that is provided only for a first auxiliary bearing (7a) among the first auxiliary bearing (7a) and a second auxiliary bearing (7b), that is fixed to the shaft (2), and that restricts a movement of the shaft (2) in both directions in an axial direction by the stopper (8) being brought into contact with the first auxiliary bearing (7a).

The present invention relates to a pre-assembled unit having two tapered roller bearings, for a driven shaft designed to be replaced efficiently and to maintain optimal tightness as if it were factory assembled. The bearing comprises a rubber seal attached to the lateral face of the inner race of one of the tapered rollers, said face being opposite the smooth face of the other tapered roller. The necessary widening of the inner races requires a second invention, namely, a roller cage that allows the rollers to rock slightly in order to be assembled without causing damage or becoming damaged.

A bearing device includes a rolling bearing having an outer ring and an inner ring, an outer ring spacer disposed adjacent to the outer ring, and an inner spacer disposed adjacent the inner ring. The outer ring and the outer ring spacer are fitted to a housing, and the inner ring and the inner ring spacer are fitted to a rotary shaft. The outer ring spacer is provided with a nozzle, which is configured to inject a cooling fluid (R) toward an outer circumferential surface of the inner ring, and is inclined so that an injection port thereof is inclined forwardly in a rotation direction of the inner ring. An inclination angle of the nozzle with respect to an axial direction is set to a value within a range from 50 to 90.

An installation unit for installing a bearing unit includes a carrier having an interior and the bearing unit mounted in the interior. The bearing unit includes a first rolling-element row and a second rolling-element row, and both the first rolling-element row and the second rolling-element row are at least partially disposed inside the carrier. The bearing unit is slidingly mounted in the carrier such that, when an end opening of the carrier is aligned with an opening in a bearing housing, applying a force against the bearing unit will slide the bearing unit out of the carrier and into the opening in the bearing housing. Also, a method of installing the bearing unit in the opening in the housing using the installation unit.