Power Hobby 579MG High Torque High Speed Digital Brushless Servo 0.07/486oz @ 8.4V

High Performance Standard Digital Servo Heat Sink Fast Cooling Design Strengthened High Chrome Steel Shaft Extra Strong Steel Gears Three Ball Bearings Long Lifespan Brushless Motor Programmable Digital Circuit High Precision Magnetic Sensor Fully Waterproof Up To IP67 Grade Ideal for 1/8 & 1/10 Scale On road, off road, Truck, Boat, Airplane, Helicopter, Robot and engine etc. Features: Gear: Steel Motor: BLS Size: 40*20*37.2mm (1.57 x 0.78 x 1.46 in) Weight: 83g Connector Wire: TYU 300 mm Operating Voltage: 4.8-8.4 V Specifications: Operating speed: 0.097sec/60 @ 6.0V Operating speed: 0.086sec/60 @ 7.4V Operating speed: 0.075sec/60 @ 8.4V Stall Torque: 28 kg-cm (389 oz-in) @ 6.0V Stall Torque: 31 kg-cm (431 oz-in) @ 7.4V Stall Torque: 35 kg-cm (486 oz-in) @ 8.4V