An arrangement including a planetary stage, a shaft, a connecting element that forms a rotationally fixed connection of a planet carrier of the planetary stage to the shaft and is configured to be flexible with respect to tiltings of the planet carrier relative to the shaft, and a center axis of a ring gear of the planetary stage that is tilted relative to an axis of rotation of the shaft.

A friction shim for use between the mating faces of two rotary components of a drivetrain is provided, the friction shim including a rigid substrate; an annular arrangement of holes, each hole placed to receive a fastener of a bolted joint between the rotary components; wherein the outer edge of the friction shim includes a series of lobes defined by a first radius and a second radius, wherein the first radius extends from a centerpoint of the friction shim and crosses a hole and extends beyond that hole by a first predetermined distance; the second radius extends between adjacent holes; and the first radius exceeds the second radius by a second predetermined distance. A drivetrain including a friction shim between the mating faces of first and second rotary components and a method of assembling such a drivetrain are also provided.

The present invention relates to a lubrication ring, a wind turbine gearbox, a method of assembly thereof and a wind turbine. The lubrication ring is formed by a number of ring segments that are positioned relative to each other in the circumference direction. The ring segments each have a first connection element and a second connection element, which are spaced apart to form a gap that takes up the thermal expansion of the ring segments. The lubrication ring forms at least one fluid channel for transferring lubrication fluid between a first gearbox part and a second gearbox part positioned relative to each other. Each ring segment has at least one mounting point for securing the ring segment to the first or second gearbox part and at least one first opening for guiding the lubrication fluid through the lubrication ring.

A drive train designed for a requirement profile includes a transmission to transmit and convert torque from a rotor shaft of a rotor. The transmission includes an Input transmission component which is unmounted on a rotor side for introducing the torque into the transmission and which partially protrudes on the rotor side out of a transmission housing and/or a ring gear of the transmission. The drive train further includes a coupling unit which is separate from the rotor shaft, from the rotor bearing arrangement and from the transmission, for permitting a torque-transmitting and rotationally rigid coupling of the rotor shaft to the input transmission component within the coupling unit. The coupling unit includes a bearing to mount the unmounted input transmission component within the coupling unit, with the input transmission component being mounted on the rotor side exclusively only by the bearing within the coupling unit.

A transmission for a wind turbine has at least one transmission housing and a planetary gearset arranged therein. A planet carrier of the planetary gearset forms a drive of the transmission. In the wind turbine, the planet carrier is borne on a rotor shaft of the wind turbine. At one end facing a rotor of the wind turbine in the wind turbine, the transmission housing has a radially extending end portion. In addition, the transmission arrangement has a sealing element that seals the radially extending end portion to the planet carrier in order to seal an inner chamber of the transmission housing on a rotor side.

A bearing arrangement for a gearbox has at least one planet carrier, a stationary element, and a bearing. The at least one planet carrier has a first end region and an axially opposite second end region. The first end region is configured to be permanently connected to a shaft for conjoint rotation. The second end region forms a first bearing region, on which the bearing is supported by a radial outer side. The stationary element forms a second bearing region, on which the bearing is supported by a radial inner side.

A machine arrangement for rotary transmission of a drive power includes a housing element, a rolling-bearing arrangement including an inner bearing raceway, an outer bearing raceway, rolling bodes designed to roll on the inner and outer bearing raceways, and a bearing cover, and a rotation element held in the housing element via the rolling-bearing arrangement for rotation about an axis of rotation. The housing element has structure regions directed toward the rolling bodies. The inner and outer bearing raceways are formed by a material which is connected integrally to the structure regions respectively and which is applied additively to the structure regions. The bearing cover of the rolling-bearing arrangement is designed to include the structure region which forms the outer bearing raceway.

A powertrain for a wind power installation includes a main bearing unit with a main shaft, and a planetary transmission driven by the main shaft and including a transmission housing and a planetary stage which revolves about a rotation axis in the transmission housing. The planetary stage includes a planet carrier, a ring gear, and a sun gear, with the planet carrier or the ring gear being drivingly connected, at least indirectly, to the rotor. The planet carrier includes planet gears which revolve conjointly with the planet carrier and alternately mesh with the ring gear and the sun gear. At least three guide elements disposed circumferentially about the rotation axis are each operatively connected alternately to the transmission housing and a circumferential region of the planet carrier. Each guide element is constructed of multiple parts and includes guide jaws disposed on axial sides of the planet carrier, respectively.

A shaft-hub connection for a planetary transmission includes an inner hub element and an outer hub element which is connected via a spline toothing in driving relationship with the inner hub element about a main axis of rotation and surrounding the inner hub element at an outer circumference. The inner hub element and the outer hub element bear against one another via a pairing of axial contact surfaces. An oil channel is formed by the inner hub element in a region of an axial position of the axial contact surfaces for oiling of the axial contact surfaces and opens out radially within the axial contact surfaces via an outlet mouth.

A planetary transmission for a wind turbine driven by a rotor includes a transmission housing, and a first planetary stage provided in the transmission housing about an axis of rotation. The first planetary stage includes a sun gear, a planet carrier and a ring gear. The planet carrier is designed at least indirectly to be drivingly connected to the rotor and includes a plurality of planet gears which revolve with the planet carrier and alternately mesh with the ring gear and the sun gear. A second planetary stage is provided in the transmission housing about the axis of rotation. A bearing is arranged within the sun gear and axially supports and mounts the sun gear in relation to the planet carrier of the first planetary stage such that the sun gear is rotatable about the axis of rotation.