The concentration of a sealed fluid in the vicinity of a sliding face between a stationary-side seal ring and a rotating-side seal ring is prevented without increasing the number of components and without providing a large-scale external circulation device. A seal cavity includes a radial sliding bearing 11, 25 for supporting a rotating shaft 2, and a sealing means 4, 30 on the side opposite to a sealed fluid source of the radial sliding bearing 11, 25 in a rotation axis direction, for sealing a sealed fluid. Fluid introduction holes 20 are provided in the radial sliding bearing 11, 25 for connecting the sealed fluid source side and the vicinity of the sealing means 4, 30 on the high-pressure fluid side.

A bearing for a pump with a shaft rotating around an axial direction includes a housing and a bearing cover fixed to the housing, a bearing structure for supporting the shaft of the pump, a reservoir for a lubricant and an oil ring for transporting the lubricant and for supplying the lubricant to the bearing structure wherein the oil ring is arranged for being moved by the rotating shaft and wherein a retaining element is provided for that is fixed with respect to the housing or the cover, the retaining element being designed and arranged such that it restricts a movement of the oil ring at least in the axial direction.

Provided is an oil discharging structure for a bearing, including: at least one bearing configured to rotatably support a rotary shaft; a cylindrical bearing housing provided radially outward of the bearing, and configured to accommodate the bearing; an oil recovery chamber provided radially outward of the bearing housing, and configured to recover an lubricating oil supplied to the bearing; and an oil discharge passage penetrating a peripheral wall of the bearing housing in a radial direction, and configured to discharge the lubricating oil from the bearing to the oil recovery chamber. The oil discharge passage is provided with a partition wall that divides the oil discharge passage in a circumferential direction.

A compact bearing is produced by a sliding bearing and has a sealing arrangement for water pumps. The bearing includes a sliding bearing bushing that includes an inner sliding surface and a radial recess having an axial sliding surface, a shaft collar, and a wet-side shaft seal arranged between the wet side and the sliding bearing bushing. A dry-side shaft seal is arranged between the sliding bearing bushing and the dry side. A lubricant reservoir with a substrate, which is porous in at least some sections, is arranged between the wet-side shaft seal and the sliding bearing bushing. The lubricant reservoir includes, in pores of the substrate, a lubricant insoluble in water, and a volume of the lubricant reservoir and a volume of a lubricant filling a total volume of spaces between the wet-side shaft seal and the dry-side shaft seal.

A rotation shaft supporting structure for an electric supercharger includes a rotation shaft that supports a compressor wheel, an electric motor including a motor rotator securely installed to the rotation shaft, and a stator for applying torque to the motor rotator. The supporting structure further includes a bearing provided on a bearing side end of the rotation shaft, which is adjacent to the compressor wheel, to support the rotation shaft, and a damper unit for absorbing shaft vibration of the rotation shaft. The compressor wheel is a wheel of a supercharging side, and the damper unit is provided at a shaft end on an opposite side to the bearing side.

Axial sliding bearing arrangement for a pump impeller of a radial pump and a radial pump comprising the axial sliding bearing arrangement

Axial sliding bearing arrangement for a pump impeller (8) of a radial pump (1) with a first, rotating friction surface (22) pointing in an axial direction (A), a second, non-rotating friction surface (23) facing the first, rotating friction surface (22), wherein the second, non-rotating friction surface (23) is allocated to a swivel head body (20), wherein the swivel head body (20) is axially supported via an axial support surface (24), and the swivel head body (20) is radially supported in a resiliently yielding manner at radial support surfaces (25) by means of first spring means (31).

A thrust bearing assembly configured to reduce the axial displacement of a shaft includes a stationary thrust bearing, a thrust runner adjacent to the thrust bearing and a taper sleeve driver. The thrust runner includes a central passage. The taper sleeve driver includes an interior surface in contact with the shaft and an exterior surface in contact with the central passage of the thrust runner. The taper sleeve driver has a tapered exterior surface that applies a radially directed clamping force against the thrust runner as the taper sleeve driver is engaged within the central passage.

A centrifugal pump for delivering coolant in vehicles and providing a centering of a pump impeller and a dampening of motor vibrations. The centrifugal pump having a pump housing consisting of a pump head, which forms a single part with a suction nozzle, a discharge nozzle, a spoke, and a bearing support, in which a counter bearing is mounted, in which a first region of a shaft is supported, around which a pump impeller is rotatably mounted via a slide bearing secured in the pump impeller, the spoke retaining the bearing support in a central position within the pump head and having a containment shell, which separates a wet chamber from a dry chamber and in which a second region of the shaft is supported. The invention seeks to solve the problem of providing in a generic centrifugal pump.

A bearing holder includes an inner portion and an outer portion, wherein the inner portion includes a receiving contour for receiving the bearing and the outer portion is configured to be mounted on a housing. A transition area between the inner portion and the outer portion includes a spring. The transition area is at least partly in a plane perpendicular to an axial axis of the receiving contour and is at least partly in a plane with at least one part of the inner and the outer portion. The transition area includes an attenuator and the attenuator is configured to attenuate a vibration of the inner portion to reduce a transfer of the vibration from the inner portion to the outer portion. Further, an electric motor, a method for producing a bearing holder and a method for operating a bearing holder are described.

A certain material irregularly expressed in an observation area is effectively observed. An observing apparatus includes a first observing unit performing a time lapse shooting of a predetermined observation area, a first discriminating unit discriminating whether or not a first material is expressed in the observation area based on an image obtained by the first observing unit, and a second observing unit starting a time lapse shooting relating to a part where the first material is expressed at a timing when the first material is expressed in the observation area, in which a shooting frequency of the time lapse shooting by the second observing unit is higher than a shooting frequency of the time lapse shooting by the first observing unit.