The [**]Schürmann-mating surface[/**] deals with the design for axes, shafts and flanges. The geometric principle of the connecting element is based on semicircles with different epicenters. The load is distributed across the whole surface equally. These characteristics lead to a cost-effective manufacturing. The [**]Schürmann-mating surface[/**] is space-saving and more effective than a simple slot and key joint or a Hirth-mating surface as a conventional equivalent.

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