This is the HS-755MG Giant Scale Metal Gear Servo from Hitec. Hitec’s expansive line-up of servos include the HS-755MG “giant scale” servo with metal gears. Perfect for larger R/C applications and feature dual ball-bearings with a water and dust resistant case. The powerful HS-755MG delivers a whopping 200 oz./in. of torque at 6 volts.
Transit time: 0.28 sec/ 60 deg. @ 4.8V (0.23 sec/deg @ 6V)
Torque: 166.6 oz/in @ 4.8V (199.9 oz/in @ 6V)
Weight: 117.0g (4.12 oz)
Length: 59mm (2.33")
Width: 29mm (1.14")
Height: 50mm (1.96")