Abstract: A pump impeller consisting of at least three different material regions, wherein an impeller wheel with a hollow shaft defines a first material region, a bearing component defines a second material region, and a permanent magnet defines a third material region. The invention furthermore relates to a method for producing the pump impeller, and to a centrifugal pump with the pump impeller. The object of the invention is to provide a robust construction, optimal venting, secure attachment of the bearing component, economic production, and a possibility of axial length tolerance compensation given a pump impeller with plastic-bonded permanent magnets. Furthermore, an optimally accurate unbalance-reduced connection between the bearing component and the magnet material should be producible.

Abstract: A set for the manufacture of epicyclic gear trains with different gear reductions, including at least one planet carrier, which features at least two first holes arranged on a first circular line, and at least two second holes arranged on a second circular line, and at least one first cover ring for a first gear reduction and at least one second cover ring for a second gear reduction, each of which features at least two bearing holes for receiving bearing pins of planet gears, wherein the first cover ring features at least two connecting pins for connecting to the first holes of the planet carrier, and the second cover ring features at least two connecting pins for connecting to the second holes of the planet carrier. In addition, the invention relates to a gear assembly that is formed from such a set.

Abstract: A pump impeller consisting of at least three different material regions, wherein an impeller wheel with a hollow shaft defines a first material region, a bearing component defines a second material region, and a permanent magnet defines a third material region. The invention furthermore relates to a method for producing the pump impeller, and to a centrifugal pump with the pump impeller. The object of the invention is to provide a robust construction, optimal venting, secure attachment of the bearing component, economic production, and a possibility of axial length tolerance compensation given a pump impeller with plastic-bonded permanent magnets. Furthermore, an optimally accurate unbalance-reduced connection between the bearing component and the magnet material should be producible.