40W Single Phase Asynchronous Gear Motor Deceleration Adjustable Speed (20K) Features: Gear motors are primarily used to reduce speed in a series of gears, which in turn creates more moment of force. AC 40W high moment of force, reversible and adjustable speed. Small vibration, low noise, premium motor. High velocity and energy saving, superior performance. Suitable for packaging industry, machine tool industry, transport equipment, textile machinery, automatic welding machine, automobile industry, elevator machinery, etc. Specification: Model: M540-402 Material: Metal Weight: 4141g/146.1oz Product Type: Single phase asynchronous motor  Pole Number: 4 poles  Rated Power: 40W  Speed: 90-1650r/min  Gear Reduction Ratio (Optional) 3k 5K 10K 15K 20K RPM (r / min) 466 280 140 93 70 Maximum Moment of Force (N.m) 0.77 1.30 2.50 3.80 5.06 Package List: 1 x 40W Retarding Machine  1 x 40W Governor