flywheel couplings, absolute encoders, gear motors, cycloidal speed reducers, motion control systems, motor controls, inverters, photoelectric sensors, servo drives, servo motors, helical worm speed reducers, sprockets, digital tachometers, torque limiters, process controllers, direct current (dc) variable speed motor controls available from e.s.williams company inc. based in stratford, ct. click the links below to visit our website or contact us via our profile page.