Sensored Brushless Motor Servo BLS-0904HV RC Servo
Torque(6.0V): 8.0 kg-cm (111.0 oz/in) 
Torque(7.4V): 9.0 kg-cm (124.9 oz/in)
Speed: 0.05 sec (6.0V) │ 0.04 sec (7.4V)
Operating Voltage: 6.0 ~ 8.4 DC Volts
Weight: 64.0 g (2.25 oz)
Bearing Type: Ball Bearing x 2
Motor Type: Brushless Motor
Gear Type: Titanium & Steel
Operating Temperature: -20℃~60℃
Working frequence: 1520μs / 333hz
Size: 40.0 x 20.0 x 39.0 mm ( 1.57 x 0.79 x 1.53 in)