Upgrade your servo game with the 501OSR Econ Servo 180. Comparable to Servocity #31311S00, this powerful servo offers a voltage range of 4.8-7.2 Volts and a stall torque of 4.1 kg.cm at 6.0V. Its no-load speed of 0.19sec/60° and 180 degree rotation make it perfect for precision movements. With a compact size of 40.8*20.1*38mm and a weight of 44g, it's a lightweight and efficient option for your servomotor needs.