Boston Gear F622B-20-B5 Gear Reducer

The Boston Gear F622B-20-B5 Gear Reducer is a 20:1 reduction unit in Boston Gear’s 600 Series Helical Gear Speed Reducers. The F622B-20-B5 designation denotes a 20:1 gear ratio with a B5 output mounting configuration, placing it among compact inline reducers used in industrial drive systems. Documented in the 600 Series literature under the F622B-20-B5 designation (catalog reference 28587), this reducer employs a helical gear set to convert high input speed to lower output speed while delivering higher torque at the output shaft relative to the input. The F622B-20-B5 code also signals its place within the B5 family of mounting interfaces, helping ensure consistent fit with compatible shaft and mounting hardware. This model is part of Boston Gear’s established lineup of gear reducers, designed for use in mechanical drive trains where a reliable speed reduction is required. With a 20:1 ratio, it supports applications needing a moderate reduction in speed and an accompanying increase in torque without changing the motor horsepower.