Patent ID: 7713467

Claim:
Process for the production of a ball screw, said ball screw having at least one element produced powder metallurgically and being made from a plurality of parts, comprising: producing at least one first precursor body with a first joining area and at least one second precursor body with a second joining area; and joining the at least one first precursor body and the at least one second precursor body by sintering to produce a one-piece element, the at least one first precursor body and the at least one second precursor body being brought into contact via the first joining area and the second joining area prior to the sintering or during the sintering or prior and during the sintering; wherein: the one-piece element is a deflector piece for rolling bodies provided with a rolling body guide; the at least one first precursor body and the at least one second precursor body are each provided with recesses which, when the precursor bodies are joined, form the rolling body guide as a closed guide with an entry and an exit for the rolling bodies; and the first joining area and the second joining area are designed to be adapted to one another such that when correctly positioned against one another prior to or during the sintering the relative movement of the at least one first precursor body and of the at least one second precursor body is blocked at least in one direction.