Abstract: An armature for an electric motor with a shaft, a stack of laminations arranged on the shaft, a commutator likewise arranged on the shaft and comprising several commutator segments and a plastic filling, and a wire winding wound around the stack of laminations and welded to the commutator is manufactured by first fixedly arranging a commutator blank without plastic filling by means of an auxiliary assembly device on the shaft, then attaching and welding the wire winding to the commutator blank, subsequently filling the assembly consisting of commutator blank, stack of laminations and wire winding with plastic and uniting it into an inherently stable, compact unit, and, finally, removing the auxiliary device again.