A bearing unit of a yawing system of a wind turbine having a tower and a nacelle connected by the yawing system. The bearing unit includes an adjuster element moveably secured to the bearing unit, a body element translatable relative to the adjuster element, a bearing element in contact with the body element, and a biasing means positioned between the body element and the adjuster element for applying a tension force to the bearing unit. The adjuster element adjusts the tension force applied to the bearing unit through translation of the body element, and respective surfaces of the adjuster element and the body element are visible during use.

A self-lubricating bearing includes an outer ring having a concave inside surface that defines an interior area of the outer ring. The bearing includes an inner member having a convex exterior surface. The inner member is disposed in the interior area, and the convex exterior surface has a physical vapor deposition coating thereon. A self-lubricating liner is bonded to the concave inside surface. The outer ring is made from a first metallic alloy, and the inner member made from a second metallic alloy.

Improved engine crankshaft thrust bearing includes an arrangement in which the thrust bearing can be employed with a first type of crankshaft for a replacement engine block and also with a different, second type of crankshaft that can also be employed in the replacement engine block. The second type of crankshaft was previously used in the engine block being replaced.

A bearing bush for supporting a motor vehicle part includes an inner tube made of a metal, a sliding sleeve made of a first plastic material and mounted rotatably on the inner tube, and an elastomer bearing which surrounds the sliding sleeve and has at least a first elastomer body and an outer sleeve. A sliding layer made of a second plastic material is applied to an outer circumferential surface of the inner tube, the first plastic material and the second plastic material forming a tribological pairing either of two different polymers from the groups of polyamides, polyoxymethylenes, polyketones, fluoropolymers, polyethylene terephthalates or polybutylene terephthalates, or the tribological pairing being formed from polyketone against polyketone, wherein the polymers of the tribological pairings each are present in a continuous thermoplastic polymer phase.

The invention relates to a sliding bearing having a first bearing component and a second bearing component, which are arranged such that they can rotate relative to each other in a rotation direction (RR) about a rotation axis (RA), wherein at least two sliding segments (1) are arranged between the first bearing component and the second bearing component, wherein the at least two sliding segments (1) each have a support structure (2) for fixing the sliding segment (1) to the first or second bearing component, and a sliding surface (3) for bringing the sliding segment (1) into sliding contact with the second or first bearing component, wherein the sliding surface (3) has, in the rotation direction (RR), a front leading edge (4) and a rear trailing edge (5), wherein the sliding surface (3) has an oil distribution groove (6), which is arranged directly adjacent to the front leading edge (4), and wherein the sliding segment (1) has a passage opening (7) for supplying the oil distribution groove (6) with oil, which preferably extends from a radial outer surface (21) of the support structure (2) to the oil distribution groove (6) or to the sliding surface (3).

An apparatus and method for assembling a split sleeve onto a shaft. The split sleeve apparatus provides a first and second arcuate portion with each having a partial cylindrical configuration. The first and second arcuate portions have at least one finger extending circumferentially outward from their opposing ends. The at least one finger from each of the first and second arcuate portions complementarily engage one another to form a continuous cylinder. At least one aperture extends longitudinally through the at least one finger of the first and second arcuate portions. A dowel rod extends through the at least one aperture for connecting the first and second arcuate portions to form the cylinder. The first and second arcuate portions are fabricated from a material having heat expansion characteristics that allow the material to expand when heated during assembly and to contract when cooled creating an interference fit with the shaft.

A plain bearing assembly of a rotational element on a bearing pin, the assembly including a bearing bolt, a bearing sleeve, which is non-rotatably mounted on the pin and which has a first bearing surface formed on its outer circumference, a rotational element which is rotatably mounted on the bearing sleeve and which has a second bearing surface that is formed on its inner circumference and that is slidingly mounted on the first bearing surface. The bearing pin has at least one lubricant channel opening onto the outer side of the pin and the bearing sleeve has a radial groove formed on its inner circumference, which groove communicates with the radial lubricant channel, and at least one opening branching off radially from the radial groove and opening towards the rotational element. The rotational element has a radial groove formed on its inner circumference and communicating with the opening and the first bearing surface is harder than the second bearing surface.

A vertical radial guide bearing of fixed circular bore construction surrounds a journal attached firmly to a rotating shaft, is lubricated via pot lubrication means, has a bearing bore surface that is shaped to include viscosity oil pumps that are situated below the surface of the oil in the pot, are adjacent the bottom of the bearing, have associated supply ports remote from the journal, and have associated discharge grooves that extend vertically up the bearing bore surface to a circumferential groove adjacent the top of the bearing, wherein the viscosity oil pumps are sized to pump oil quickly up the grooves so as to develop an oil film between the journal and bearing surfaces, this film generated by normal hydro-dynamic action having sufficient pressure and thickness to rapidly separate the journal and bearing surfaces and to keep them separated.

A bearing assembly of a rotor of a wind turbine, namely for mounting the rotor in a fixed housing, includes: a plurality of rotor-side axial slide bearing segments, each configured to: engage on the rotor, rotate together with the rotor, and be supported against a sliding surface of the housing; a plurality of housing-side axial slide bearing segments, each configured to: engage on the housing, be fixed together with the housing, and be supported against a first sliding surface of the rotor; and a plurality of housing-side radial slide bearing segments, each configured to: engage on the housing, be fixed together with the housing and be supported against a second sliding surface of the rotor.

A shaft assembly has a shaft and a journal bearing that is fixedly coupled to the shaft so that rotation of the shaft causes corresponding rotation of the journal bearing. A bearing race has an inner surface that defines a cylindrical bore and a lubrication groove that extends radially outward from the cylindrical bore. The journal bearing is rotatably disposed within the cylindrical bore of the bearing race.