... of small-and medium -sized ente JJBC series mechanical semi-automatic straightening machine Main Characteristics For shaft, gear, clutch, rod ... l Its loading adopts manual loading methods; the servo motor loading can be controlled by operating handles.l The ... axles, gear shafts, smooth axis, and rotors of electric tools, motor rotors, piston rods, twisted bars, valves, crankshafts, threaded shafts, ...