The invention concerns a rolling bearing (1; 1′) with a one-piece outer bearing ring (3) and a one-piece inner bearing ring (2), and with rolling elements (4) arranged in at least one row between the bearing rings (2, 3). Provision is made in this rolling bearing that the outer bearing ring (3) and/or the inner bearing ring (2) has, on the axial end face, at least one cutout (10) through which the rolling elements (4) can be placed into the space between the bearing rings (2, 3), that the cutout (10) can be covered with a reversibly attachable cap (9), and that the cap (9) forms a rim (11) for guiding the rolling elements (4). The lateral cutout (10) for filling the rolling bearing (1) with rolling bodies permits cage solutions of segmented or strip design that are larger than a rolling element and hence can accommodate multiple rolling elements. The suitability of the rolling bearing for high rotational speeds and the stiffness of the rolling bearing are increased as a result.