A transmission component set has a bearing ring (1) and a strain wave gear mounted thereon. Said strain wave gear comprises an input or drive component (2), a flexible or resilient transmission component (4) having external teeth (3), and a gear (6) having an internal teeth (5). The transmission component (4) is fitted onto the drive component (2) and thereby is elliptically deformable such that the external teeth (3) of the transmission component (4) engage with the internal teeth (5) of the gear (6) in opposing areas of a major axis of the ellipse, wherein the gear (6) or the transmission component (4), via its bearing surface (7), can be mounted on a bearing surface (9) of the bearing ring (1) by means of rolling elements (8). The gear (6) or the transmission component (4) and the bearing ring (1) are each provided with at least one indentation or receptacle (10, 11). When the two indentations or receptacles (10, 11) are lined up in a corresponding position relative to each other, the rolling elements (8) are inserted into an anti-friction bearing between the bearing surface (7) of the gear (6) or transmission component (4) and the bearing surface (9) of the bearing ring (1).