Boston Gear F221D-PH-10-B5-H1 Helical Reducer

Boston Gear F221D-PH-10-B5-H1 Helical Reducer is a compact 10:1 parallel‑shaft speed reducer in the 200‑Series Optimount family, featuring a hollow‑output shaft and a quill input with a B5 mounting pattern. It’s rated for 1 horsepower input and delivers a maximum output speed of 178 rpm at the 10:1 reduction, making it suitable for light‑ to medium‑duty automated drives. The input interface is a 56C parallel shaft, designed to couple with standard motors, while the hollow output shaft supports rear‑ or side‑mounted connections without a protruding output. This variant emphasizes a space‑efficient footprint and reliable torque delivery for belt‑ and pulley‑driven assemblies, where precise speed control matters. Applications typically include compact conveyors, packaging equipment, and auxiliary machine drives in which a durable, gear‑driven reduction is required without adding excessive length to the drive train.