Boston Gear F221D-11-B5 Speed Reducer is a worm-gear speed reducer from Boston Gear designed to reduce motor speed and increase output torque in industrial drive trains. The F221D-11-B5 catalog number identifies a foot-mounted (B5) configuration within Boston Gear’s 700-series worm gear reducers, a family known for providing reliable torque in a compact footprint. This model is commonly used with conveyors, packaging lines, and automation equipment where mounting to motors or machine frames is straightforward and space is limited.
