A disc coupling is a type of flexible coupling that uses a series of thin, flexible metal discs to transmit torque while accommodating misalignment. The discs are connected alternately to the driving and driven shafts, allowing for angular, axial, and small radial misalignments through the deformation of the discs. Known for their high torsional stiffness, zero backlash, and ability to operate at high speeds, disc couplings are commonly used in precision applications such as turbines, compressors, and servo motors. They are valued for their durability, low maintenance, and ability to handle high torque with minimal wear.