This is a High Speed Digital Servo. It is designed to work with 550-700 Helicopters. Features: High Speed Metal Gears Specs: Operating voltage range 6V-8.4V Operating speed : 0.09sec@60°//6V 0.08sec@60°/7.4V 0.07sec@60°//8.4V Torque : 14Kg-cm @ 6V 17Kg-cm @ 7.4V 20Kg-cm @ 8.4V Weight 70g Working Frequency:760us/333Hz Ball Beaing : 2BB 17mm Coreless Motor Size:40.5*20*39.5mm
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