Rolling bearing consists of two rings, external (1) and internal (2), rolling elements (3) in the form of balls and the separator (4) with holes for the rolling elements. The separator (4) has circumferential recess (7). When the separator (4) is guided on the external ring (1), the circumferential recess (7) is located on the external side of the separator and the depth of the recess (7) is so that the point of contact (5) of the separator (4) with the rolling element (3) is below the diameter (8) passing through the centres of the rolling elements (3). When the separator (4) is guided on the internal ring (2), the circumferential recess (7) is located on the internal side of the separator and the depth of the recess (7) is so that the point of contact (6) of the separator (4) with the rolling element (3) is above the diameter (8) passing through the centres of the rolling elements (3). On the at least one of the ring races, where the rolling elements move, at least one groove (10) is located at the angle a from 10 to 90° in relation to the direction of movement of the rolling elements (3).