PowerHD B2s HV Brushless Digital Servo 50.0KG/0.10sec@8.4V

Torque(6.0V): 38.0 kg-cm (527.7 oz/in)
Torque(7.4V): 45.0 kg-cm (624.9 oz/in)
Torque(8.4V): 50.0 kg-cm (694.4 oz/in)
Speed: 0.15 sec (6.0V) ¦ 0.12 sec (7.4V)¦
Speed: 0.10 sec (8.4V)
Operating Voltage: 6.0 ~ 8.4 DC Volts
Weight: 67.0 g (2.36 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 20.5 x 38.3 mm ( 1.61 x 0.81 x 1.51 in)