Power HD HD-1217MG Digital HV servo 62g

Torque(6.0V): 15.8 kg-cm (219.42 oz/in) 
Torque(7.4V): 21.2 kg-cm (294.41 oz/in)
Speed: 0.10 sec (6.0V) │ 0.085 sec (7.4V)
Operating Voltage：6.0 ~ 7.4 DC Volts
Weight: 62.0 g (2.19 oz)
Bearing Type：Ball Bearing x 2
Motor Type：Coreless Motor
Gear Type：Steel Alloy
Operating Temperature：-20℃~60℃
Working frequence：1520μs / 333hz
Size：40.3 x 20.2 x 37.2 mm ( 1.59 x 0.80 x 1.46 in)