Boston Gear F721-25-B5-G Inline Helical Gear Reducer

Boston Gear F721-25-B5-G Inline Helical Gear Reducer delivers a compact 25:1 speed reduction in a 56C-flange inline package designed for standard motor drives. The unit is specified for up to 1 hp input and produces about 70 rpm output when paired with a typical 1,750 rpm motor, making it well-suited for light- to medium-duty applications where space is at a premium. With an approximate center distance of 2.1 inches, the F721-25-B5-G aligns with other 700-series inline reducers for straightforward installation and consistent performance in confined equipment layouts. Catalog references commonly report output torque in the range of roughly 700–875 in-lb, depending on configuration, reflecting the model’s solid torque transfer for modest load conditions. Built for reliable industrial service, this reducer combines a robust gear train with practical mounting options to support durable, repeatable speed reduction in automated systems that require compact, efficient motion control.