PowerHD S15 Red HV CNC Brushless Digital Servo 16.5KG/0.05sec@8.4V

Torque(6.0V): 11.5 kg-cm (159.7 oz/in)
Torque(7.4V): 15.0 kg-cm (208.3 oz/in)
Torque(8.4V): 16.5 kg-cm (229.1 oz/in)
Speed: 0.072 sec (6.0V) ¦ 0.060 sec (7.4V) ¦
Speed: 0.050 sec (8.4V)
Operating Voltage: 6.0 ~ 8.4 DC Volts
Weight: 52.0 g (1.83 oz)
Bearing Type: Ball Bearing x 2
Motor Type: Brushless Motor
Gear Type: Titanium & Steel
Operating Temperature: -20~60°C
Working frequency: 1520µs / 333hz
Size: 41.0 x 20.0 x 26.0 mm ( 1.61 x 0.79 x 1.02 in)