Gear Motor, also 201902080001046780042called Electric motor Gearboxes, is a Motor Gearboxes Gear Motor For Glass Greenhouse Ventilation Screening And Shading System specific type of electrical motor that is designed to create high torque whilst maintaining a minimal horsepower, or low velocity, motor output. Gear motors are available in many different applications, specifically for the greenhouse, livestock and agricultural market, our motors are available options to operate roof vents, wall structure vents,roof shading and screening, they attach to the shaft with chain couplings that compensate for alignment mistakes and can be very easily removed without disturbing the whole shaft.