Power HD WH-20KG HV Digital Servo (Waterproof) 20.0kg / 0.08s

Technical specification:

Torque(6.0V): 15.0 kg-cm ( 208.3 oz/in)
Torque(7.4V): 18.0 kg-cm ( 250.0 oz/in)
Torque(8.4V): 20.0 kg-cm ( 277.7 oz/in)
Speed: 0.11 sec (6.0V)│0.09 sec (7.4V)│0.08 sec (8.4V)
Operating Voltage：6.0 ~ 8.4 DC Volts
Weight: 82.0 g (2.89 oz)
Bearing Type：Ball Bearing x 2
Motor Type：Coreless Motor
Gear Type：Titanium & Steel
Operating Temperature：-20℃~60℃
Working frequence：1520μs / 333hz
Size：40.7 x 20.5 x 38.5 mm ( 1.60 x 0.81 x 1.52 in)