Monoblock hollow shaft for transmitting rotational moment has two end sections with teeth and middle section with thinner wall thickness, central part of which is symmetrically mechanically shaped

摘要

The monoblock hollow shaft for transmitting rotational moment has two end sections (13, 14) with teeth and a middle section (12 )with thinner wall thickness than the end sections. In order to transfer rotational moment to the teeth under the effect of torsion, a central part of the middle section, making up at least 25% of its length, is symmetrically mechanically shaped.