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Boston Gear speed reducer, C-face 56C, 18:1 ratio, grey metal housing

Boston Gear

Boston Gear F832B-18K-B5-M1 Transmission Fluid 18:1 56C

SKU CH-QMW0-JTW92

Speed reducer with 18:1 ratio, 56C C-face mount, 97 RPM max output and 483 in-lb torque capacity

  • 18:1 ratio delivers 97 RPM output speed for precise motion control
  • 483 in-lb output torque handles demanding load requirements
  • 385 lb overhung load capacity supports radial shaft forces
  • 56 in base-to-center height fits 56C motor frame dimensions
  • 1 hp input power rating matches standard industrial motor sizes

Speed Reducer 18:1 Ratio

The Boston Gear F832B-18K-B5-M1 is a helical speed reducer built for C-face motor mounting with a 56C frame designation. It provides an 18:1 gear reduction to lower output speed while multiplying torque for industrial machinery. The unit accepts a maximum input speed of 1,750 RPM and delivers up to 483 in-lb of output torque. It suits applications requiring reliable speed reduction in a compact footprint.

Replaces Direct-Drive Setups

This reducer replaces direct-drive configurations where motor speed exceeds the driven equipment requirement. The 18:1 ratio drops output to a maximum of 97 RPM, making the jump worthwhile when process speeds demand lower rotation with higher torque. Hardened and ground steel gears handle the transition without the wear common in lighter-duty alternatives. Overhung load capacity reaches 385 lb for side-load stability.

Sustained Load Performance

Roller bearings and hardened steel gears maintain consistent torque delivery during continuous operation. The unit mounts at any angle, allowing flexible installation without lubrication migration issues. Maximum input horsepower is rated at 1 hp, and the 1.56-inch base-to-center dimension supports stable alignment under load. California Proposition 65 warnings apply for chemical exposure.

Highlights

  • 18:1 ratio delivers 97 RPM output speed for precise motion control
  • 483 in-lb output torque handles demanding load requirements
  • 385 lb overhung load capacity supports radial shaft forces
  • 56 in base-to-center height fits 56C motor frame dimensions
  • 1 hp input power rating matches standard industrial motor sizes

Specifications

BrandBOSTON GEAR

Questions about this item

What C-face frame size matches the 56C input on this reducer?

The reducer accepts a NEMA 56C motor frame directly on its C-face input.

Which mounting orientation should I select for an 18:1 ratio unit?

Mount at any angle; the roller bearings and helical gears support universal orientation.

How often should the hardened and ground steel gears be inspected?

Inspect gear wear and oil condition at regular intervals based on load and duty cycle.

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