... gearbox not required, frictionless, GZ6 series big torque servo motorGZ6 Series big torque servo motor and its drives as aservo drive system ... Special purposemachines.GZ6 big torque servo motor is a multi-poles low-speed-bigtorque servo motor.It is compose of stator, permanent ... not required, frictionless, no mechanic slit, high strong, low speed, long life, high reliable.2.Big torque, compact, small ...