Double-row angular contact ball bearing

A double-row angular contact ball bearing comprising an outer ring, an inner ring and two ball crown rings formed by bearing balls guided in two separate cages and supported on shoulders of said inner and outer rings, ball raceways of the bearing having different diameters, wherein the cages are made of plastic and configured as window-type cages comprising pockets for receiving the bearing balls, and one of the cages comprises on an axially inward oriented end, a plurality of spacers uniformly spaced from one another in peripheral direction, said one cage further comprises a plurality of retaining lugs uniformly spaced from one another in peripheral direction, which retaining lugs engage a corresponding groove of one of the inner and the outer ring, and the spacers of the one cage prevent an axial displacement of the other cage, the two ball crown rings have different pitch circle radii, the spacers of the one cage are oriented radially inward and overlap the other cage at least partially in radial direction, while the retaining lugs are oriented radially outward and engage the groove of the outer ring.