An angular contact ball bearing comprises balls (4) disposed between an inner ring (2) and an outer ring (3), the outer ring (3) having a lubricating grease feed duct (7) of which the outer opening is disposed in the outer lateral face of the outer ring (3) and of which the inner opening is disposed in the inner periphery of the outer ring (3), offset relative to a circle described through the centre points of the balls (4) in the axial direction of the inner ring (2) and of the outer ring (3), the lubricating grease feed duct (7) being disposed inclined with respect to the radial plane of the angular contact ball bearing.
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