Abstract: The invention relates to a wind turbine comprising a hub, a nacelle, a tower and a power transmission system for increasing the rotational speed from said hub, said power transmission system comprising at least a first and a second epicyclic gear stage, each of said epicyclic gear stages including a ring gear, a planet carrier and a plurality of planet gears, said plurality of planet gears being mounted in the planet carrier and engaging with the ring gear and with a sun gear; wherein each of said plurality of planet gears of at least said first epicyclic gear stage and said second epicyclic gear stage have identical gear profile design parameters.

Abstract: In a gearbox, a stationary gear component such as a ring gear of a planetary gear comprises a tooth trace correction that varies along the tooth trace so as to provide for superior load distribution in the gearbox. In some illustrative embodiments, the gearbox is a component of a wind power plant wherein the circumferentially varying tooth trace correction of the stationary ring gear results in superior durability and performance.

Abstract: In a gearbox, a stationary gear component such as a ring gear of a planetary gear comprises a tooth trace correction that varies along the tooth trace so as to provide for superior load distribution in the gearbox. In some illustrative embodiments, the gearbox is a component of a wind power plant wherein the circumferentially varying tooth trace correction of the stationary ring gear results in superior durability and performance.