Zero-backlash servo insert couplings compensate for the misalignment that is possible with high load inertias or the fast accelerations of today’s high-performance digital and analog servo and vector drives. Designed with special polyurethane inserts to dampen harmful vibrations, the couplings provide backlash-free power transmission with a high torsonial stiffness. Three insert options are offered to cover a full range of resonance frequency problems. Compensate for axial, radial and angular misalignment Available with electrically insulated collet or conical clamping hubs Delivered completely assembled to install as a single unit or blind assembly Can be disassembled to fit tight installations Ease of maintenance due to changing insert only -- cost effective Custom sizes may be special ordered