The WMH Curved-tooth couplings capable of coping with axial(+ 1 mm), radial (+ 0,4 mm) and angular (2°) shaft displacements.WMH-couplings are virtually free from wear because of their designand the material combination of nylon and steel. The selection ofmaterials ensures that this maintenance free coupling can besubjected to high dynamic loads up to 100 %.