A bearing assembly comprising a bearing shell, thrust bearing pads, and journal bearing pads, where the thrust bearing pads and/or the journal bearing pads have through-pad lubricating gas distributors comprising at least one of a porous layer having connected-through porosity, a dense layer having a plurality of at least six orifices defined therethrough, or a porous layer having connected-through porosity having a plurality of at least six orifices defined therethrough.

There is provided a wireless sensor-equipped bearing. A plurality of magnets are fixed between pockets of a retainer formed of an annular body such that an N pole and an S pole of the magnets neighbor in a circumferential direction of the annular body. A coil, a circuit unit and an antenna are fixed to a surface of a first seal, the surface being opposed to the magnets. A sensor is disposed on any one of an inner ring, an outer ring and the first seal.

A yoke roller assembly includes an inner ring disposed in an outer ring. The yoke roller assembly includes first, second and third rows of rollers positioned between the inner ring and the outer ring. The outer ring has a first width, a first outside diameter and a radially outwardly extending lobe circumferentially extending therearound and formed integrally therewith. The lobe has opposing axial end faces extending a second width, and has a second outside diameter. The second row of rollers are positioned axially inward of the axial end faces of the lobe. The first and third row of rollers each have an axial end positioned axially inward of the axial end faces of the lobe.

A cam follower assembly includes a ball bearing having an outer ring and an inner assembly which includes two or more segments. The inner assembly is disposed in the outer ring with a full complement of balls disposed therebetween. The outer ring and inner assembly each include a race having a gothic arch cross sectional configuration that causes the balls to roll on two portions of each race.

A joint assembly between a first component and a second component comprises a ball portion configured to be connected to the first component. A socket is configured to be connected to the second component or ground and comprises a socket base, a socket cover, and a spherical joint cavity within the assembled socket base and socket cover to receive the ball portion to form a spherical joint. At least one biasing member is in the joint assembly. A clamp clamps the socket base to the socket cover such that the at least one biasing member biases the socket base and the socket cover toward one another.

A display screen support device includes a base unit providing an upright shaft and a stop member at the upright shaft, a first support arm including a first pivot-connection device coupled to the upright shaft and supported on the stop member and a first extension device transversely extended from the first pivot-connection device for supporting a display screen, and a second support arm including a second pivot-connection device coupled to the first pivot-connection device and a second extension device transversely extended from the second pivot-connection for supporting another display screen. The second pivot-connection device of the second support arm relative can be biased relative to the first pivot-connection device of the first support arm within a limited angle for allowing adjustment of the relative angular position between the two supported display screens.

There is provided an actuator comprising an output shaft and a control system configured to move the output shaft for actuating a component. The control system comprises a first drive system comprising a first movable component, and a second drive system comprising a second movable component. The first component and the second component are connected to the output shaft, and each other, by a connecting member that moves with the first component and the second component to move the output shaft for actuating a component. The control system further comprises one or more bearing arrangements configured to permit movement of the connecting member by the first movable component or the second movable component upon failure, disengagement, shutdown or other stoppage of the second drive system or the first drive system, respectively.

A roller assembly includes an outer ring having an interior having an inner surface extending an overall axial length between first and a second axial ends. The inner surface has a radially inward facing bearing surface extending between first and second radially inwardly extending flanges. The roller assembly includes a one piece inner member extending into the interior and having a groove formed therein between third and a fourth axial ends. A retaining ring is positioned in the groove. A first row of first rollers is positioned in the interior and between the retaining ring and the first radially extending flange. A second row of second rollers is positioned in the interior between the retaining ring and the second radially extending flange. An annular seal engages the inner member and has an overall axial width no more than 6% of the length of the outer ring.

A two-degree-of-freedom rotation control device includes a rotary body having a friction spherical surface, wherein a load mounting platform is provided on a top of the rotating body or inside the rotating body; a fixing and supporting structure configured to hold the rotating body, to allow the rotating body to have only a rotational degree of freedom; and a driving motor, wherein, a driving end of the driving motor is in direct contact with the friction spherical surface of the rotating body, to form a friction transmission pair tangent to the friction spherical surface. An application system has the two-degree-of-freedom rotation control device and a working unit on the two-degree-of-freedom rotation control device.

A swivel joint has uniform ball bearing requirements for all bearing races. The swivel joint has a male connector and a female connector that coaxially interconnects and swivel relative to each other while still maintaining a high pressure seal. Each connector has three bearing races to form three sets of bearing races, each of which supports the same number of ball bearings. The circumference of the main set of races are enlarged by less than the diameter of one ball, so it is impossible to add another ball to the coupled male and female connectors of the swivel joint.