These flexible servo couplings are designed to connect two shafts that may be misaligned or have axial movement and relieve the stresses that would otherwise result from a rigid coupling. This design has been tested in excess of MIL-HDBK-5A, rotaing beam, fatigue data for 2024T4 QQA-225/6. This military specification indicates that if a beam is flexed through a controlled arc (our maximum misalignment rating) for six million cycles, it has reached a point on the fatigue curve that indicates that the coupling will have infinite life. Hysteresis and lost motion is eliminated by the six short beam design. They are suitable for encoders, resolvers and motor drives.
