Power HD 30Kg : Standard size : Waterproof : Metal gear : Digital servo

Power HD 30Kg : Standard size : Digital servo : Aluminum case with Copper & Aluminum Gears.  

Torque(4.8V): 18.0 kg-cm (250.0 oz/in)
Torque(6.0V): 23.5 kg-cm (326.4 oz/in)
Torque(7.2V): 30.0 kg-cm (416.6 oz/in)
Speed: 0.18 sec (4.8V) │ 0.16 sec (6.0V)│ 0.14 sec (7.2V)
Operating Voltage：4.8 ~ 7.2 DC Volts
Weight: 62 g (2.19 oz)
Bearing Type：Ball Bearing x 2
Motor Type：DC Motor
Gear Type：Copper & Aluminum
Operating Temperature：-20℃~60℃
Working frequence：1520μs / 333hz
Size：40.5 x 20.5 x 39.3 mm ( 1.59 x 0.81 x 1.55 in)
Servo Arm: 25T  

Note: When the digital steering gear is subject to resistance will be issued a continuous creak current sound, the greater the resistance sound the more loud, this is a normal phenomenon. Not for use underwater.