PLE Series Servo Gearbox 5 kinds of optional size = 60, 80, 90, 120 & 160 mm Rated Output Torque = 8.5 Nm to 680Nm Reduction Ratio 1 stage = 3, 4, 5, 7, 10 Reduction Ratio 2 stage = 12, 16, 20, 25, 28, 35, 40, 50, 70 Reduction Ratio 3 stage = 64, 80, 100, 125, 140, 175, 200, 250, 350, 400, 500, 700, 1000 Backlash = 12 arc-min to 18 arc-minute