Flexible coupling: disc coupling Bibby Transmissions

HS High Performance Couplings
The operating principle of disc couplings means that they can be designed using any even number of bolts (4 or above). Half these bolts fit to the "Driving" side and half to the "Driven" side. Hence, in a coupling with a total of 6 bolts (6HS), drive is through 3 bolts. This means that, for a given diameter of coupling, more torque can be transmitted through the 8-bolt (8HS) unit than the 6-bolt (6HS) coupling. However, as the number of bolts increases on a given diameter, the ‘span’ between them decreases and,
hence, so does the flexibility of the discs.

This brochure outlines couplings with 6, 8 & 10-bolt arrangements. The 6-bolt units have the higher flexibility and the 10-bolt units the higher torque capacity. The 8- bolt (8HS) units offer a compromise of flexibility against torque capacity and are often a good starting point if misalignment expectations are unknown.

More specifications...