An integrated journal bearing (IJB) includes a shaft extending in an axial direction, a housing through which the shaft extends in the axial direction, the housing surrounding the shaft in a radial direction, an active magnetic bearing (AMB) arranged within the housing and surrounding the shaft in the radial direction, and at least a first fluid film journal bearing (JB) arranged within the housing and surrounding the shaft in the radial direction. The first JB is axially adjacent to the AMB such that first JB and the AMB do not share a common radial clearance, while both are commonly flooded with oil. A controller in signal communication with the AMB can be variously configured to supply current thereto to operate the AMB by controlling a magnetic force generated thereby.

The present disclosure relates to a thrust bearing which is disposed to face a thrust collar provided in a rotation shaft. The thrust bearing includes a top foil, a back foil, and a base plate. The back foil includes a plurality of back foil pieces which are arranged in a circumferential direction of the base plate, and the top foil includes a plurality of top foil pieces which are respectively disposed on the back foil pieces. An inner peripheral recessed portion is formed at a portion which supports an inner peripheral side end of the back foil piece in a surface supporting the back foil in the base plate.

A bearing monitoring/analysis system may comprise an acoustic emission sensor positioned adjacent a fluid film bearing, component thereof, and/or adjacent structure such that the acoustic emission sensor may collect a signal from the bearing, wherein the signal may be analyzed to allow a user to gain information regarding the fluid film bearing.

A sliding bearing 4 includes a bearing base portion 9 having a notched portion 8, a bearing portion 12 having an outer peripheral surface 10 adapted to be brought into contact with an inner peripheral surface 3 of a gear case 2, a pair of bearing portions 14 sandwiching the bearing portion 12 through each of a pair of slits 13 in a direction R about an axis O, and a pair of circular arc portions 17 sandwiching the pair of bearing portions 14 through each of a pair of slits 15 in the direction R about the axis.

A sliding bearing 4 includes a bearing base portion 9 having a notched portion 8, a bearing portion 12 having an outer peripheral surface 10 adapted to be brought into contact with an inner peripheral surface 3 of a gear case 2, a pair of bearing portions 14 sandwiching the bearing portion 12 through each of a pair of slits 13 in a direction R about an axis O, and a pair of circular arc portions 17 sandwiching the pair of bearing portions 14 through each of a pair of slits 15 in the direction R about the axis.

A rotating shaft lifting jig is inserted between a rotating shaft of a rotary machine and a bearing stand surrounding the outer periphery of at least a lower part of the rotating shaft. The jig for lifting the rotating shaft includes: a pedestal which is supported on an inner peripheral surface of the bearing stand; and a jack part which is disposed between the pedestal and the outer peripheral surface of the rotating shaft and extends/contracts in the radial direction. The radial dimension of the pedestal is smaller than a radial clearance between the rotating shaft and the bearing stand. A rotor receiver having a cylindrical surface conforming to the outer peripheral surface of the rotating shaft is provided between the jack part and the rotating shaft. The rotor receiver is provided with a plurality of support members in directions different from the direction of the jack part.

A rotating shaft lifting jig is inserted between a rotating shaft of a rotary machine and a bearing stand surrounding the outer periphery of at least a lower part of the rotating shaft. The jig for lifting the rotating shaft includes: a pedestal which is supported on an inner peripheral surface of the bearing stand; and a jack part which is disposed between the pedestal and the outer peripheral surface of the rotating shaft and extends/contracts in the radial direction. The radial dimension of the pedestal is smaller than a radial clearance between the rotating shaft and the bearing stand. A rotor receiver having a cylindrical surface conforming to the outer peripheral surface of the rotating shaft is provided between the jack part and the rotating shaft. The rotor receiver is provided with a plurality of support members in directions different from the direction of the jack part.

A spherical bearing comprising: a race; a ball; a wear lining; and a capacitive sensor positioned within or behind the wear lining to gauge wear of said wear lining.

A number of variations may include a turbocharger bearing housing comprising a bearing bore, a rolling element bearing assembly including an inner race and an outer race having a plurality of ball bearings disposed therebetween, wherein the rolling element bearing assembly is disposed within the bearing bore, a shaft for rotating the rolling element bearing assembly, located and supported within the inner race, a tubular bearing spacer, having at least one radial opening, positioned within the bearing bore, a mounting bore, a generally tubular insert mounted in the mounting bore and extending into the at least one radial opening of the tubular bearing spacer, and a rotational speed sensor mounted to the tubular insert via threaded fitting or friction fit.

A method is provided for operating a fluid conveying device of a motor vehicle having at least one aerodynamic bearing. The method reduces the rotational speed of the aerodynamic bearing to a rest speed, wherein the rest speed is below a lifting speed, in which case the bearing builds up an air film for bearing free of mixed friction, and wherein the rest speed is above a lowering speed, in which case the bearing has reduced the air film such that mixed friction occurs. The fluid conveying device is operated at the rest speed.