Wind power plant gear mechanism

A wind power plant planetary gear system with an axle and a gearwheel, at least one plain bearing bush being arranged between the axle and the gearwheel,

• wherein the gearwheel comprises a bearing receiving portion having a conical shape,
• wherein the at least one plain bearing bush has a conical shape and is connected to the bearing receiving portion of the gearwheel by a conical press fit,
• wherein the at least one plain bearing bush is permanently fixed in position,
• wherein the at least one plain bearing bush has a first end surface and a second end surface which lies opposite the former along a longitudinal center axis through the at least one plain bearing bush,
• wherein the first end surface has a diameter d and the second end surface has a diameter D, the diameter D being greater than the diameter d,
• wherein the gearwheel comprises a radial projection comprising a bearing surface, the bearing surface bearing against the second end surface,
• wherein the radial projection is formed in one piece with the gearwheel, and
• wherein the at least one plain bearing bush comprises a sliding layer in a region of the axle.