Standard hub with keyway shape 6

The torque is transmitted via keyway-connection. This interlocking connection is the most common hub shape in predominantly shock-free and unidirectional torques.

Versions with hubs are available for 12 to 50-mm shaft diameters, depending on size. Larger bore diameters are also optionally available.
Also optionally available as a short-length variant with internal hubs (hub shape 7).