The Cleveland Gear M2011AAH20B-S Speed Reducer Gearbox is a right-angle, industrial-grade gearbox designed for mechanical power transmission. With a nominal ratio of 20:1, this unit is ideal for industrial automation and motion control applications. With a weight of 30 lbs and a single unit quantity, this gearbox from Cleveland Gear is a reliable and efficient solution for reducing speed and transmitting power in various industrial settings.