XQ-S4120D is a HV coreless digital servo. Working voltage 7.4V-8.5V,supports 2S LI-po. Dual ball bearing. High precision titanium gear. Impressive high performance and extremely competitive price. Perfect for large scale rc helicopters, cars and boats. 


Size: A:40.8mm B:20.1mm C:38.8mm
Weight: 57.5g（2.03oz）
Gear type: Titanium Gear

At 7.4V
Idle current: 5.0mA
No load speed: 0.16sec/60°
Running current: 125 mA
Torque: 17.8 kg.cm / 247.2 oz.in

At 8.5V
Idle current: 6.0mA
No load speed: 0.14 sec/60°
Running current: 150 mA
Torque: 21 kg.cm / 291.7 oz.in