A motor includes a base, a bearing sleeve, a stator, a rotating member, a thrust bearing, and a hub. The bearing sleeve is arranged with the base and has an opening end and a sealing end opposite to each other. The stator connects with the base or the bearing sleeve. The rotating member is arranged inside the bearing sleeve and includes a shaft and a limiting portion adjacent to the sealing end. A first end of the shaft connects with the limiting portion, and a second end of the shaft has a coupling portion adjacent to the opening end. The thrust bearing is arranged between the shaft and an inner surface of the bearing sleeve, so that the limiting portion is between the thrust bearing and the sealing end. The hub connects with the coupling portion of the shaft and has a permanent magnet corresponding to the stator.

A hydrostatic bearing assembly for a shaft is disclosed, which consists of a base ring, two side rings enclosed up the base ring at both sides, and a plurality of hydrostatic blocks fixed respectively on surfaces of the base ring and of the side rings corresponded to the shaft, as result to hold the shaft to resist against loadings from the axial direction and/or the radial direction and provide lubrication through oil passages inside. These hydrostatic blocks are locked with screws or bolts on the base ring and on the side rings in order to be replaced individually on site.

A sliding bearing arrangement for a wind turbine and a method to service the bearing is provided. A sliding bearing arrangement of a wind turbine includes a first shaft and a second shaft, whereby a first radial sliding bearing is arranged between the shafts. The first radial sliding bearing includes bearing pads. The first shaft includes a collar, whereby the collar is arranged mainly perpendicular to the axis of rotation, and radially overlaps at least a part of a radial surface of the second shaft. The collar includes an opening to exchange the bearing pads of the first radial sliding bearing of the bearing arrangement.

A sliding bearing arrangement for a wind turbine and a method to service the bearing is provided. A sliding bearing arrangement of a wind turbine includes a first shaft and a second shaft, whereby a first radial sliding bearing is arranged between the shafts. The first radial sliding bearing includes bearing pads. The first shaft includes a collar, whereby the collar is arranged mainly perpendicular to the axis of rotation, and radially overlaps at least a part of a radial surface of the second shaft. The collar includes an opening to exchange the bearing pads of the first radial sliding bearing of the bearing arrangement.

A bearing element is provided which has at least three individual annular segments which are each combined to form a homogeneous, inherently fixed bearing element. The individual annular segments each abut against at least two further annular segments and are interconnected by connecting means.

A bearing element is provided which has at least three individual annular segments which are each combined to form a homogeneous, inherently fixed bearing element. The individual annular segments each abut against at least two further annular segments and are interconnected by connecting means.

Durability-enhanced bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements includes a bearing surface. The bearing assembly may further include a support ring structure that carries the plurality of superhard bearing elements. The support ring structure may have a first portion that exhibits a first yield strength and a second portion that exhibits a second yield strength. The first yield strength of the first portion may be greater than the second yield strength of the second portion.

Durability-enhanced bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements includes a bearing surface. The bearing assembly may further include a support ring structure that carries the plurality of superhard bearing elements. The support ring structure may have a first portion that exhibits a first yield strength and a second portion that exhibits a second yield strength. The first yield strength of the first portion may be greater than the second yield strength of the second portion.

An adjustment drive for a steering column may include a drive unit having a threaded spindle that is supported in a gearbox housing at a bearing portion so as to be rotatable, with the threaded spindle including a threaded portion with a spindle thread that is axially adjoined to a shaft portion on which a gear wheel is arranged in a rotationally secure manner. The gear wheel meshes with a drive wheel that is coupled to a motor. Between the threaded portion and the gear wheel a peripheral bearing groove with a groove base may extend between groove flanks thereof. The bearing portion may be disposed in the bearing groove in a region of the groove base, and the bearing portion may be supported in a sliding manner in a bearing opening of a bearing plate that engages radially in the bearing groove.

An adjustment drive for a steering column may include a drive unit having a threaded spindle that is supported in a gearbox housing at a bearing portion so as to be rotatable, with the threaded spindle including a threaded portion with a spindle thread that is axially adjoined to a shaft portion on which a gear wheel is arranged in a rotationally secure manner. The gear wheel meshes with a drive wheel that is coupled to a motor. Between the threaded portion and the gear wheel a peripheral bearing groove with a groove base may extend between groove flanks thereof. The bearing portion may be disposed in the bearing groove in a region of the groove base, and the bearing portion may be supported in a sliding manner in a bearing opening of a bearing plate that engages radially in the bearing groove.