A vehicle may include a flutter resistant caster. The vehicle may include a frame, a drive wheel coupled to the frame, a caster housing coupled to the frame, a caster, a locking element, a first bearing, and a biasing element. The caster housing may include an opening. The caster may include a caster wheel and a caster stem extending through the opening in the caster housing. The caster stem may be configured to rotate relative to the caster housing. The locking element may be coupled to the caster stem. The first bearing may be coupled to the caster stem. The biasing element may be coupled to the caster stem. The biasing element may be configured to exert a force on the first bearing.

Provided is a self-aligning roller bearing for supporting a main shaft of a wind power generator, the self-aligning roller bearing including an inner ring, an outer ring, two rows of rollers, and retainers. Each of the rollers has an outer peripheral surface formed with a DLC coating having a multilayer structure. The DLC coating has a film thickness of 2.0 μm or larger. A base material of each of the rollers has an external surface having a surface roughness of Ra≤0.3 and RΔq≤0.05. The DLC coating having the multilayer structure includes layers having stepwisely increasing film hardnesses such that a layer situated closer to outside has a higher hardness.

A bearing includes a first ring, a second ring, at least one row of axial rolling elements, and at least one row of radial rolling elements arranged between axial raceways provided on the rings. The second ring has a protruding nose engaged into an annular groove of the first ring and provided with the axial raceway of the second ring. The bearing further includes at least one thrust ring delimiting a radial raceway for the axial rolling elements, and at least one spring system to axially push the thrust ring. The thrust ring is axially disposed between the axial rolling elements and the nose. The spring system is mounted on the nose. The groove of the first ring delimits a radial raceway for the axial rolling elements.

The bearing includes a first ring, a second ring, at least one row of radial and axial rolling elements arranged between axial and radial raceways provided on the rings. The second ring has a protruding nose engaged into an annular groove of the first ring and provided with the axial raceway and with the radial raceway of the second ring. The bearing further provides at least one cage for maintaining the row of axial rolling elements and at least one flange for guiding and maintaining the cage in radial direction. The flange axially abuts against a flat surface of the second ring. The bearing further includes a plurality of fixing screws to secure the flange to the second ring, the fixing screws extending axially through the flange.

The invention relates to a large rolling bearing, more particularly an open-center large rolling bearing, comprising two concentric running rings, between which a plurality of rolling elements is provided in a bearing gap, which rolling elements roll on at least two raceways. More particularly, the bearing gap between the running rings and/or between at least one running ring and the rolling elements is at least partially filled with a solid lubricant, which comprises a polymer matrix and a lubricant embedded therein.

A bearing rotatably supported by a housing. The bearing having one radial and two axial parts all including a plurality of rolling elements. The rolling elements of the radial bearing part contact an outer peripheral surface of an output shaft. The rolling elements of one or two of the axial bearing parts contact the outer peripheral surface of the output shaft. The rolling elements of the other axial bearing part contact a first ring-shaped part fixed to the output shaft to form an output-shaft side raceway surface. The rolling elements of the radial bearing part and of the two axial bearing parts contact the surface of a second ring-shaped part disposed on the output shaft, or the rolling elements of the radial bearing part and of one of the axial bearing parts directly contacts the inner surface of the housing to form an outer raceway surface.

Disclosed is a crane, in particular for offshore application. The crane includes a bearing the assembly between a pedestal and a carrier frame. The bearings are distributed over the height of the support structure and include upper bearing, which include a radial contact rolling bearing including rolling elements and a smooth cylindrical raceway, coaxial to the axis of rotation. The radial contact rolling bearing allows a longitudinal translational degree of freedom of the rolling elements over the height of the cylindrical raceway.

A bearing arrangement may be employed in a rotor shaft of a wind turbine. The rotor shaft may transfer rotation of a hub with rotor blades to a generator. The bearing arrangement may include a hub-side rolling bearing and a generator-side rolling bearing. The hub-side rolling bearing may be configured as a radial roller bearing. The generator-side rolling bearing may be configured as a three-row roller rotary connection. The hub-side rolling bearing may include a closed cage with windows for guiding rolling elements. Rows of the closed cage may be separated by a central web. Further, at least one of the generator-side rolling bearing or the hub-side rolling bearing may comprise inductively hardened raceways.

A bearing includes a first ring, a second ring, at least one row of axial rolling elements, and at least one row of radial rolling elements arranged between axial raceways provided on the rings. The second ring has a protruding nose engaged into an annular groove of the first ring and provided with the axial raceway of the second ring. The bearing further includes at least one thrust ring delimiting a radial raceway for the axial rolling elements, and at least one spring system to axially push the thrust ring. The thrust ring is axially disposed between the axial rolling elements and the nose. The spring system is mounted on the nose. The groove of the first ring delimits a radial raceway for the axial rolling elements.

The bearing includes a first ring, a second ring, at least one row of radial and axial rolling elements arranged between axial and radial raceways provided on the rings. The second ring has a protruding nose engaged into an annular groove of the first ring and provided with the axial raceway and with the radial raceway of the second ring. The bearing further provides at least one cage for maintaining the row of axial rolling elements and at least one flange for guiding and maintaining the cage in radial direction. The flange axially abuts against a flat surface of the second ring. The bearing further includes a plurality of fixing screws to secure the flange to the second ring, the fixing screws extending axially through the flange.