Patent ID: 8393994

Claim:
A system for transferring torque in a wind turbine, comprising: at least one first epicyclical gear stage including a first gear having an output that defines a first axis of rotation that extends through the first gear, a second wind turbine component having an input that defines a second axis of rotation, and a torque transferring shaft comprising a shaft part, a connection part, and a central shaft axis about which the shaft rotates, wherein the torque transferring shaft is adapted for connecting the first gear of the first epicyclical gear stage with the second component, wherein the torque transferring shaft is connected to the second component via the connection part to form a torque-transferring connection area between the connection part and the second component, and wherein the first axis of rotation, the second axis of rotation, and the shaft axis are aligned with each other, wherein the connection area is configured as a circumferentially continuous face of an annular ring, wherein an outer diameter of the shaft part of the torque transferring shaft is smaller than an inner diameter of the connection area between the torque transferring shaft and the second component, and wherein a flexure zone is established in the connection part between the shaft part and the connection area.