The invention relates to a rotor for an electric motor, wherein the rotor comprises a main body on which at least one support surface is formed, to which at least one permanent magnet element is attached. In order to provide a rotor for an electric motor in which the at least one permanent magnet element is cost-effectively fastened to the main body in a precisely predetermined position, the main body (10) is partially surrounded by a joining sleeve (9) having chamber walls (15), wherein the chamber walls (15), together with the support surfaces (13), form at least one chamber (17) in which the at least one permanent magnet element (5) is arranged, wherein the joining sleeve (9) fixes the position of the permanent magnet element (5) in the radial direction (19) on the main body (10) and a locking element (8) is molded onto the main body (10), said locking element closing the chamber (17); and thereby fixing the position of the permanent magnet element (5) in the axial direction (7) on the main body (10).