Alignment is quickly achieved by simply placing a straight edge across the outside diameter of the hubs. No special tools are needed, only a hexagon wrench for the locking of the taper bush.
The Inter-linking hubs act as a additional safeguard, though the flexible element fails, the drive will be Maintained by the interaction of the jaws which are an integral part of the coupling hubs. The hubs are made of C.I. Jaws are unmachined.