APEX DYNAMICS used PAⅡ 090-S2 RATIO 010:1 for 750W AC Servo,Servo Motor 600 Watt Yamaha Robot F17 C17Series,Servo Motor 600 Watt Yamaha Robot F17 C17Series,DS589MG V8.0 Mini Digital HV Metal Gear Servo 9.2Kgf.cm 0.08,Apex Dynamics PE090 2501132458 Planetary Servo Motor