The Original Shaft Mount Reducer (SMR) designed after the popular TXT reducer series. The Original SMR mounts directly to the driven shaft and is available and in stock with supporting accessories that allow it to perform in a variety of environments and applications. This shaft mount reducer, available in output bore sizes ranging from 1-15/16” to 5-7/16” in both 15:1 and 25:1 ratios, includes a torque arm and a 2-year warranty.