... High quality small size and high efficiency Our RV series speed gearmotor, 1) Small size, compact, lightweight, and saves space ... aluminum alloy, elegant appearance, efficient heat radiation, high carrying ability 4) Installed in multiple surfaces, hollow output shaft, various input ... 0.04~22kW (4 poles motor) 7) Output torque: 4~2320Nm 8) Transmission ratio: 5:1~100:1 NMRV aluminum alloy worm speed ...