Goteck9257MG Metal Gear RC Servo for Align Trex 450 500 Helicopter Plane Features: Coreless Motor D Dual ball bearing Perfect T-Rex electric rudder straight Cost-effective Large torque， high-speed， high-resolution Suitable gyro: Futaba GY401 (FUTM0807， FUTM0808)， GY502， etc. Specifications: Stall torque: 4 kg-cm(5V)，4.5 kg-cm(6V) Operating speed: 0.07sec/60°(5V)，?0.06sec/60°(6V) Operating voltage: 4.8V-6V No loading current:0.25A(5V)，0.30(6V) Loading current:1.8A(5V)，2.2(6V) Equipped with two ball bearings. Comes with a selection of servo arms/discs， mounting screws. Package list: 1 * Goteck 9257MG Metal Gear Digital RC Servo Net Weight: 41g