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Cast iron worm gear speed reducer with 56C C-face input, 60:1 ratio

Boston Gear

Boston Gear F7718-60-B5-G Speed Reducer 56C 60:1

SKU CH-HPFZ-FRFMK

Worm gear reducer with 60:1 ratio delivers 440 in-lb output torque at 29 RPM for 56C frame motors

  • Delivers 440 in-lb output torque for heavy loads
  • 60:1 gear ratio reduces speed to 29 RPM maximum
  • Cast-iron housing with tapered roller bearings withstands 150 lb overhung load
  • Hardened and ground steel worm gear ensures durable power transmission
  • Mounts at any angle with 56C C-face motor compatibility

Boston Gear 56C Speed Reducer

The Boston Gear F7718-60-B5-G is a worm-gear speed reducer built for 56C frame motors with a C-face input. It suits machinery requiring a fixed 60:1 reduction where the output shaft must turn at 29 RPM or slower under light loads.

60:1 Ratio Capacity and Limits

Maximum input horsepower is .3 hp and maximum output torque reaches 440 in-lb. The overhung load capacity is 150 lb, so radial forces beyond that level will exceed the rating. The unit runs out of headroom when torque or input power surpass these figures.

Cast Iron Housing and Mounting Flexibility

The cast iron housing with tapered roller bearings and hardened ground steel gears supports any-angle mounting orientation. This construction allows installation in positions that other housings cannot accommodate without modification.

Highlights

  • Delivers 440 in-lb output torque for heavy loads
  • 60:1 gear ratio reduces speed to 29 RPM maximum
  • Cast-iron housing with tapered roller bearings withstands 150 lb overhung load
  • Hardened and ground steel worm gear ensures durable power transmission
  • Mounts at any angle with 56C C-face motor compatibility

Specifications

BrandBOSTON GEAR

Questions about this item

Will the 56C frame motor I already own bolt directly to this reducer's C-face input?

Yes, the reducer is built for a 56C frame motor and uses a C-face input connection that matches standard NEMA 56C dimensions.

How can I confirm the reducer is delivering the rated 440 in-lb of torque after installation?

Run the reducer at its maximum input of 0.3 hp and measure output speed; it should stabilise near 29 rpm with the load applied, indicating the 60:1 ratio and torque rating are being met.

Does the shipment include mounting hardware or lubricant, or must I source them separately?

The unit ships as the speed reducer only; mounting bolts, shims and the initial fill of gear oil are not included and must be purchased separately.

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