The Timing Hub may be installed in a machine either as an in-line coupling, used to advance or retard the position of the output shaft, or as a concentric shaft coupling providing phase adjustment for parallel shafts.

Note: The Timing Hub is not designed to accommodate misaligned shafts. Misalignment must be isolated from the Timing Hub using either shaft bearing supports or a flexible coupling adapter.

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 at least an 1/8".

Concentric Shaft Coupling- The shaft should pass completely through the attached gear or pulley and the Timing Hub at a uniform diameter with a "light" running fit.