| 摘要 |
In a double-row angular contact ball bearing comprising an outer ring ( 1 ), an inner ring ( 2 ) and two ball crown rings ( 3, 4 ) formed by bearing balls ( 3.1, 4.1 ) guided in two separate cages ( 3.2, 4.2 ) and supported on shoulders ( 1.1, 1.2, 2.1, 2.2 ) of said inner and outer rings, ball raceways of the bearing having different diameters, the cages ( 3.2, 4.2 ) are made of plastic and configured as window-type cages comprising pockets for receiving the bearing balls ( 3.1, 4.1 ), and one of the cages ( 3.2, 4.2 ) comprises on an axially inward oriented end, a plurality of spacers ( 3.5, 4.5 ) uniformly spaced from one another in peripheral direction, said one cage further comprises a plurality of retaining lugs ( 3.4, 4.4 ) uniformly spaced from one another in peripheral direction, which retaining lugs engage a corresponding groove ( 2.3, 1.3 ) of one of the inner ( 2 ) and the outer ring ( 1 ), and the spacers ( 3.5, 4.5 ) of the one cage ( 3.2, 4.2 ) prevent an axial displacement of the other cage ( 4.2, 3.2 ).
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