Carrying axle for rail vehicle with at least one wheel rigidly attached

摘要

Impeller shaft (1) made from high strength steel comprises an outer edge layer (7) surface-hardened in the region of a press fit and a chemically passive protective layer (9) having a thickness of less than 1/50 of the diameter of the press fit. Preferred Features: The surface-hardened edge layer has a thickness of 0.01-15 mm and has a roughened surface. The protective layer is a ceramic, phosphate or metal layer. The edge layer is nitrided.