A roller structure and a manufacturing method thereof are introduced. The roller structure includes a roller rotatable about an axial portion, an end of a bush is fixed to an end of the axial portion, and another end of the bush having an engaging portion coupled to a load, a first stop portion disposed at another end of the axial portion and the bush has a second stop portion positioned opposite to the first stop portion such that the roller rotates between the first stop portion and the second stop portion; wherein the engaging portion of the bush has a feeding space that receives a material of the load to couple the engaging portion to the load. Hence, the roller structure and the manufacturing method thereof provide a modularized roller structure for carrying a load, effectuate modularized assembly and production, enhance assembly efficiency, attain structural streamlining, and cut costs.

The disclosure relates to a sleeve-like bearing receiving member for a plastics material sleeve, wherein the sleeve-like bearing receiving member may include a cylindrical sleeve wall that delimits the inner side of the sleeve-like bearing receiving member, wherein a plurality of apertures are formed in the cylindrical sleeve wall, wherein each aperture of the plurality of apertures is at least partially bordered by a collar that protrudes into the inner side of the sleeve-like bearing receiving member, and wherein the collar is configured to engage in the plastics material sleeve to retain the plastics material sleeve in the sleeve-like bearing receiving member.

A rolling bearing includes an outer ring, an inner ring, a plurality of rolling bodies, and a seal member. An outer peripheral portion of the seal member is fixed by a retaining ring to a groove portion formed on an inner peripheral surface of the outer ring and an inner peripheral portion of the seal member is elastically deformable. The seal member includes an inclined portion. 1?Ts/Sct?10 is satisfied when Ts is a circumferential gap of the retaining ring at a time when the seal member and the retaining ring are attached to the groove portion of the outer ring and Sct is an axial thickness of a part of the seal member in contact with the retaining ring.

A rolling bearing includes an outer ring, an inner ring, a plurality of rolling bodies, and a seal member. An outer peripheral portion of the seal member is fixed by a retaining ring to a groove portion formed on an inner peripheral surface of the outer ring and an inner peripheral portion of the seal member is elastically deformable. The seal member includes an inclined portion. The seal member satisfies 0.25?Skn/Skt?2.5 when Skn is a radial length from an inclination start part of the inclined portion on an inside in an axial direction to an outermost diameter position of a part of contact of the seal member with an outer peripheral surface of the inner ring and Skt is a thickness of the inclined portion in a direction perpendicular to an inclination direction.

A roller structure and a manufacturing method thereof are introduced. The roller structure includes a cylindrical roller rotatable about an elongated axial portion disposed coaxially in a through-hole of the cylindrical roller, a bush with an end fixed to an end of the elongated axial portion, the bush having a first stop portion positioned proximate to one axial end of the cylindrical roller and another end having an engaging portion coupled to a load, and a second stop portion disposed at an opposite end of the elongated axial portion and positioned proximate to the other side of the roller such that the roller rotates between the first stop portion and the second stop portion. Hence, the roller structure and the manufacturing method thereof provide a modularized roller structure for carrying a load, effectuate modularized assembly and production, enhance assembly efficiency, attain structural streamlining, and cut costs.

The invention relates to a planetary gearing (1) for a wind turbine, comprising a sun gear (3), a hollow gear (17), a planetary carrier (9) with a first bolt receiving element (10) having at least one first bolt seat (12), at least one planetary gear bolt (8) and at least one planetary gear (5). The bearing assembly (19) has a first planetary gear receiving bushing (20) and a second planetary gear receiving bushing (21), which planetary gear receiving bushings (20, 21) are coupled to the planetary gear (5) in a rotationally fixed manner, and between which planetary gear receiving bushings (20, 21) an axial bearing gap (25) is formed. The bearing assembly (19) has at least one bearing running sleeve (28), which is accommodated on the planetary wheel bolt (8) in a rotationally fixed manner, and on which an axial positioning flange (29) is formed, which is accommodated in the axial bearing gap (25) between the planetary gear receiving bushings (20), and an axial position fixing, in particular an axial bearing, of the planetary gear (5) on the planetary gear bolt (8) is thereby carried out.

The invention provides a fixed rolling element bearing assembly comprising: a housing; an inner race for attaching to a rotating shaft; a cage and rolling element assembly positioned around the inner race; first and second positional locators for positioning the cage and rolling element assembly between inner edges thereof; a thrustwasher adjacent an outer edge of either of the first or second positional locator and fixably connected to the housing.

The invention concerns a bearing unit for an axlebox of a railway vehicle. The bearing unit being centered on a central axis and having a bearing configured to support an axle of a wheelset. The bearing unit also includes an annular sleeve provided with an outer periphery configured for mounting in an annular bore of a housing of the axlebox and an inner periphery configured for receiving the bearing; and a plurality of anti-rotation means distributed at the outer periphery of the annular sleeve, for preventing rotation of the annular sleeve in the housing of the axlebox. The invention also concerns a railway vehicle having such an axlebox and a maintenance process for such an axlebox.

A slide-stop device designed and adapted for wedge engagement with opposing internal sur-faces of a linear motion slide track having an essentially C-shaped cross-sectional profile. The slide-stop device includes two lateral engagement sections extending essentially parallel to the longitudinal direction on opposite sides of the slide-stop device and having engagement surfaces facing outwardly in opposite transverse directions of the slide-stop device, two flex-ion elements being arranged on opposite sides with respect to the longitudinal direction of the slide-stop device. Each of the two flexion elements have one or more strips extending between and connecting the end regions of the lateral engagement sections, each strip being curved or bent to point outwardly with respect to the longitudinal direction of the slide-stop device. At least the strips of the flexion elements are made of elastic material.

The invention provides a fixed rolling element bearing assembly comprising: a housing; an inner race for attaching to a rotating shaft; a cage and rolling element assembly positioned around the inner race; first and second positional locators for positioning the cage and rolling element assembly between inner edges thereof; a thrustwasher adjacent an outer edge of either of the first or second positional locator and fixably connected to the housing.