The Phasing Hub may be installed in a machine either as an in-line shaft coupling or as a concentric shaft coupling providing phase adjustment for parallel shafts.

In-Line Shaft Coupling: In order to ensure proper shaft alignment, either the driven or driving shaft should pass completely through one Hub and pilot into the other by an amount determined by the "L" dimension shown above, left.

The Phasing Hub is designed to transmit pure torque only. Radial loads and misalignment must be isolated from the Phasing Hub. This may be achieved by using shaft bearing supports or a flexible coupling adapter.

Concentric Shaft Coupling: The shaft should pass completely through the attached sprocket or gear and the Phasing Hub at a uniform diameter with a tight running fit. Refer to the illustration shown above, right.