A torque converter is provided. The torque converter includes a stator, a turbine, a bushing provided at an inner circumferential surface of the turbine and a thrust bearing provided axially between the turbine and the stator. The bushing contacts an inner circumferential surface of the thrust bearing for piloting the turbine bearing. A method of forming a torque converter is also provided. The method includes providing a bushing at an inner circumferential surface of a turbine; and providing a thrust bearing axially between the turbine and a stator such that the bushing contacts an inner circumferential surface of the thrust bearing to pilot the turbine bearing.

A rolling-element bearing cage or segment configured to guide at least one rolling element includes a first circumferential ring connected to a second circumferential ring by a plurality of axially extending bridges. A first one of the bridges includes a first axial portion that has a cross-section perpendicular to the axial direction and a cross sectional area and a peripheral length. The peripheral length of the cross section of the first axial portion is greater than a peripheral length of a smallest rectangle bounding the cross section.

A method for producing an annular-shaped cage for a rolling bearing assembly. The method comprises steps of: (a) providing a workpiece contained in a plane having a first side and a second side; (b) forming an annular-shaped cage from the workpiece, the annular-shaped cage having a U-shaped cross section such that portions of the first side of the workpiece face each other; and (c) forming a plurality of windows in the workpiece for receiving and positioning a set of rolling elements.

A bearing cage configured for a large-diameter roller bearing includes a first ring element, and a first bridge extending substantially axially from a first connection region of the first ring element. The first connection region includes a first recess extending into the first ring element that has a radially outer end and a radially inner end and a first radius of curvature at a location between the radially outer end and the radially inner end, and the first radius of curvature is constant or variable.

A needle roller and cage assembly include a cage having a width larger than a diameter thereof. Pillar sections of the cage each include roller retaining portions on radially inner and outer sides with respect to a roller pitch circle diameter and an oblique portion through which the roller retaining portions are continuous with each other. The oblique portion includes a first relief portion formed therein, for avoiding interference with a needle roller. The adjacent pillar sections form a pocket having a rectangular shape therebetween. The pocket includes a second relief portion in each of four corners thereof. The second relief portion extends in the axial direction of the cage from a position at which a short side of the pocket is elongated in a circumferential direction of the cage to an outer end of the roller retaining portion on the radially outer side.

A chain guide is provided which reduces moving resistance of a camshaft-driving, torque-transmitting timing chain. The chain guide includes a guide base provided on one side of the timing chain to face the timing chain and having an opposed pair of side plates. The side plates support respective ends of roller shafts each rotatably supporting a chain-guiding needle roller bearing. Each needle roller bearing includes a retainer guided by needle roller elements.

A transmission includes a first shaft unit connected to a drive shaft of a drive unit. The first shaft unit includes a first shaft having a first shaft raceway surface on an outer peripheral surface thereof, a first output gear provided on the first shaft, a first outer ring attached to a first support part, the first outer ring having a first outer ring raceway surface on an inner peripheral surface thereof, and a plurality of first rolling elements disposed between the first shaft raceway surface and the first outer ring raceway surface.

A spherical roller bearing for supporting a wind turbine main shaft includes an outer ring, an inner ring having a diameter of at least 499 mm, two sets of spherical rollers which roll along raceways formed on the outer and inner rings, and first and second cages each configured to retain a separate one of the sets of spherical rollers. Each one of the first and second cages includes a first cage ring extending in a circumferential direction of the spherical roller bearing, a second cage ring spaced axially from the first cage ring and connected to the first cage ring by a plurality of cage bars so as to form closed pockets. Each pocket receives a separate one of the spherical rollers of one of the two sets of spherical rollers.

A spherical roller bearing for a wind turbine includes outer and inner rings, two sets of spherical rollers rolling between the rings and a cage retaining the rollers. The cage includes an axial inner cage ring extending in a circumferential direction of the bearing, a first axial outer cage ring spaced from the axial inner cage ring on one axial side and connected to the inner cage ring by cage bars forming pockets receiving one set of rollers, and a second axial outer cage ring spaced from the at least one axial inner cage ring on a second, opposite axial side and connected to the axial inner cage ring by cage bars forming pockets receiving the other set rollers. Each cage bar has a radial curvature concave with respect to a pitch diameter. The cage and/or the rollers are free of structure for holding the rollers in the cage.