Angular contact ball bearing with single retainers

The invention discloses an angular contact ball bearing with single retainers. The angular contact ball bearing comprises an outer ring, an inner ring and a plurality of rolling bodies, wherein the inner ring is arranged inside the outer ring, the outer ring and the inner ring are coaxially arranged, and the rolling bodies are arranged between the outer ring and the inner ring; and the angular contact ball bearing further comprises the plurality of single retainers, wherein the plurality of single retainers and the plurality of rolling bodies are alternately arranged in the circumferential direction, the two opposite side surfaces of each single retainer are provided with spherical concave surfaces making contact with the outer spherical surfaces of the rolling bodies in a matched mode, and the length, close to the inner ring, of the single retainers is less than the length, close to the outer ring, of the single retainers. According to the angular contact ball bearing, through the innovation of a retainer st