Patent ID: 7024943

Claim:
A device, comprising: at least two parts that are joined together, wherein: the at least two parts are welded together, at least one welding pocket is present and is capable of receiving material of at least one of the at least two parts that is displaced when the at least two parts are welded together, one of the at least two parts includes a first projection extending in an axial direction parallel to a central axis of the at least two parts and having a contact surface at an axial end, another one of the at least two parts rests on the contact surface of the first projection, the two parts welded together at a welding spot in an area of the contact surface, and one of the at least two parts is situated at least partially in another one of the at least two parts, the another one of the at least two parts in which the one of the at least two parts is situated includes the first projection and a second projection that surrounds a welding spot at the first projection in a radial circumferential direction and that extends in the axial direction.