Boston Gear F715-30-B5-G Speed Reducer 56C 30:1

Speed Reducer for 56C Motors

The Boston Gear F715-30-B5-G is a worm-gear speed reducer built for 56C-frame motors. It provides a fixed 30:1 reduction ratio with a maximum output speed of 58 RPM. The unit delivers up to 277 in-lb of output torque and handles an overhung load capacity of 150 lb. Its cast-iron housing and tapered roller bearings suit industrial machinery requiring reliable speed reduction.

Verify Shaft and Mounting Details

Confirm your motor uses a 56C C-face mount to match the reducer's input connection. Ensure the driven equipment accepts a round output shaft and that the 1.54 in worm centre distance aligns with your layout. The base-to-centre height measures 1.91 in for mounting reference. The reducer mounts at any angle, but check that the 150 lb overhung load limit covers your application's radial force.

Sustained Operation Within Rated Limits

Under continuous load the reducer operates at its rated 0.3 hp maximum input horsepower. The hardened and ground steel worm gear works with tapered roller bearings to manage heat and wear during extended runs. Rotation is reversible in both clockwise and counter-clockwise directions. Performance remains stable when the 277 in-lb torque ceiling and 58 RPM output speed are not exceeded.