Rolling bearing, notably for ship's propeller or for wind turbine

A wind turbine comprising:

• a nacelle, mounted on a mast and enclosing a generator intended to produce electrical energy,
• a rotor provided with a hub supporting at least two blades, and
• a rolling bearing mounted between the hub and a blade, the rolling bearing including,
• an inner ring having a first axial end, a second axial end, and a cylindrical inner surface,
• an outer ring,
• at least one row of rolling elements disposed between the inner and outer rings, and
• a ring gear fixed to the cylindrical inner surface of the inner ring, wherein the ring gear is formed of at least two independent gear segments, each of the at least two independent gear segments, when viewed in axial cross-section, having first and second axial sections adjacently located side-by-side so as not to radially overlap, the first axial section defining a first gear segment inner radius, the second axial section having first and second radially extending surfaces between which are located a plurality of teeth such that the plurality of teeth are located entirely on the second axial section and configured to extend radially inwardly therefrom, the plurality of teeth defining a dedendum circle forming a second gear segment inner radius, the first gear segment inner radius being greater than the second gear segment inner radius, the ring gear being completely radially overlapped by the inner ring such that, when viewed in axial cross-section, no portion of the ring gear extends axially past either of the first axial end or the second axial end of the inner ring in a direction away from the at least one row of rolling elements, a maximum outer diameter of the ring gear is equal to or less than a diameter of the cylindrical inner surface of the inner ring, and wherein
• the circumference of the ring gear is substantially equal to the circumference of the combination of the independent gear segments.

A rolling bearing comprising:

• an inner ring,
• an outer ring having a first axial end, a second axial end, and a cylindrical outer surface,
• at least one row of rolling elements disposed between the inner and outer rings, and
• a ring gear fixed to the cylindrical outer surface of the outer ring, wherein the ring gear is formed of at least two independent gear segments, each of the at least two independent gear segments, when viewed in axial cross-section, having first and second axial sections adjacently located side-by-side so as not to radially overlap, the first axial section defining a first gear segment outer radius, the second axial section having first and second radially extending surfaces between which are located a plurality of teeth such that the plurality of teeth are located entirely on the second axial section and configured to extend radially outwardly therefrom, the plurality of teeth defining a dedendum circle forming a second gear segment outer radius, the first gear segment outer radius being less than the second gear segment outer radius, the ring gear being completely radially overlapped by the outer ring such that, when viewed in axial cross-section, no portion of the ring gear extends axially past either of the first axial end or the second axial end of the outer ring in a direction away from the at least one row of rolling elements, a minimum inner diameter of the ring gear is equal to or greater than a diameter of the cylindrical outer surface of the outer ring, and
• wherein the circumference of the ring gear is substantially equal to the circumference of the combination of the at least two independent gear segments.