US Patent 7390265 Flexible coupling device

A flexible coupling device for mounting on axially opposed rotatable shafts comprises a pair of opposing hubs, a flexible connecting sleeve, and a pair of opposing retainers. Each of the hubs has a plurality of hub engaging elements extending there from. The flexible connecting sleeve has a plurality of internal sleeve engaging elements extending there from that mate with the hub engaging elements and a plurality of external sleeve engaging elements extending there from. The retainers are removeably attached to the hubs. Each of the retainers has an internal flange that engages the external sleeve engaging elements to restrict movement of the connecting sleeve relative to the hubs and the retainers.