... life 2.heat treated 3.smooth,stable operation 4.high performance 5.low noise DDMD crane geared motor1.Reduction gearThe ... stable and smooth, which make goods not shaking.3.MotorHigh performance,high torque,motor itself ensures quick heat dissipation, and high ... with high wear resistant to make it with high safety,long service life,and strong stablity. Package Production line High performance!!!crane ...