... reel cable reel, gear, slip ring collector box, Hysteresis drives, motors, stopper and base. 1,reel structureHysteresis CZ series ... reel cable reel, gear, slip ring collector box, Hysteresis drives, motors, stopper and base composition (see Figure 1). Parameters ... drive produces a magnetic field greater than the hysteresis torque, synchronous release cable. 3,ontrol methods and characteristicsDrum motor ...