PowerHD 1810MG Digital Servo 3.9KG/0.13sec@6.0V

Torque(4.8V): 3.10 kg-cm (43.05 oz/in)
Torque(6.0V): 3.90 kg-cm (54.16 oz/in)
Speed: 0.16 sec (4.8V) ¦ 0.13 sec (6.0V)
Operating Voltage: 4.8 ~ 6.0 DC Volts
Weight: 15.8 g (0.56 oz)
Bearing Type: Ball Bearing x 1
Motor Type: DC Motor
Gear Type: Copper
Connector wire length: JR 250 mm
Operating Temperature: -20~60°C
Working frequency: 1520µs / 250hz
Size: 22.8 x 12.0 x 29.4 mm ( 0.90 x 0.47 x 1.16 in)