Torque is transmitted between the bolts through a series of thin, stainless steel discs assembled in a pack.
A disc coupling is a high performance motion control (servo) coupling designed to be the torque transmitting element (by connecting two shafts together) while accommodating for shaft misalignment.
It is designed to be flexible, while remaining torsionally strong under high torque loads.
Torsionally stiff and still flexible, disc couplings are a great solution for high speed applications.
Special care should be taken to ensure that misalignment is within the ratings of the coupling.