Multiple-row large roller bearing, especially axial radial bearing for the main arrangement of bearings of the rotor shaft of a wind power installation

A multi-row large rolling bearing configured as an axial-radial bearing for a main bearing arrangement of a rotor shaft of a wind power installation, comprising:

• a vertically-arranged circular-ring-shaped outer disk;
• an inner ring arranged coaxially with respect to the outer disk;
• and
• two circular-ring-shaped shaft disks arranged axially adjacent to the outer disk on both sides, each with at least one row of rolling bodies, each held at uniform intervals by one bearing cage, rolling between the two shaft disks and the outer disk and forming a first and a second rolling bearing for absorbing axial forces, while at least one further row of rolling bodies, held at uniform intervals by a further bearing cage, being arranged between the outer disk and the inner ring and forming a third rolling bearing for absorbing radial forces,
• wherein the inner ring and the two circular-ring-shaped shaft disks are connected so that the inner ring and the two circular-ring-shaped shaft disks rotate together relative to the outer disk, thereby forming a common inner ring for the first, second and third roller bearings, and
• wherein the first rolling bearing and the second rolling bearing are formed by two tapered-roller bearings whose rolling bodies, which are designed as tapered rollers, are each aligned with their smaller end sides toward a bearing longitudinal axis.