Rotor bearing for wind turbine, has double row spherical roller bearings with multiple barrel rollers, where pressure angle of bearing row is provided as zero degree angle

摘要

The rotor bearing (18) has double row spherical roller bearings with multiple barrel rollers. A pressure angle of a bearing row is provided as 0 degree angle. A pressure angle of another bearing row is provided as 25 degree angle. The barrel rollers of the former bearing row have a different shape than the barrel rollers of the latter bearing row.