Features: Gear motors are primarily used to reduce speed in a series of gears, which in turn creates more moment of force. AC 220V 90W high moment of force, reversible and adjustable speed. Small vibration, low noise, high quality 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: M590-502 Material: Metal Weight: 5250g/185.2oz Product Type: Single phase asynchronous motor Pole Number: 4 poles Rated Power: 90W Rated Voltage: 220V AC 50/60Hz Gear Reduction Ratio (Optional) 5k 10K 20K 50K 100K RPM (r / min) 280 140 70 28 14 Maximum Moment of Force (N.m) 2.58 5.16 10.3 20.0 20.0 Package List: 1 x 90W Retarding Machine 1 x Governor Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .