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Cast iron worm gear reducer with C-face input and round output shaft

Boston Gear

Boston Gear F724-40-B5-G Speed Reducer 40:1 ratio 56C frame

SKU CH-CN5Y-DSCYT

A worm-gear speed reducer delivering 40:1 reduction with a 56C C-face input for 44 RPM output and 1206 in-lb torque

  • 40:1 worm gearing delivers precise 44 RPM output speed
  • 1 hp input rating handles up to 1206 in-lb output torque
  • 56C C-face mounting fits standard NEMA motor frames directly
  • Cast iron housing with tapered roller bearings supports 150 lb overhung load
  • Any-angle mounting orientation allows flexible installation in tight spaces

40:1 Speed Reducer for 56C Motors

This worm-gear reducer provides a 40:1 ratio for 56C-frame motors with a C-face input connection. It suits applications that need a fixed reduction to 44 RPM maximum output speed and up to 1 hp input power. The cast-iron housing and tapered roller bearings support continuous operation at any mounting angle.

Hardened Steel Worm Gear and 1206 in-lb Torque

The hardened and ground steel worm delivers a maximum output torque of 1206 in-lb while the tapered roller bearings handle a 150 lb overhung load capacity. The 2.38 in worm center distance and 2.5 in base-to-center height set the mounting footprint for direct coupling to driven equipment.

CW/CCW Rotation and Single-Speed Operation

Rotation is selectable clockwise or counter-clockwise but the unit provides only the fixed 40:1 ratio with no variable-speed capability. Buyers who need a different reduction ratio or higher output speeds must choose another model. The housing contains chemicals listed under California Proposition 65 for cancer and reproductive harm.

Highlights

  • 40:1 worm gearing delivers precise 44 RPM output speed
  • 1 hp input rating handles up to 1206 in-lb output torque
  • 56C C-face mounting fits standard NEMA motor frames directly
  • Cast iron housing with tapered roller bearings supports 150 lb overhung load
  • Any-angle mounting orientation allows flexible installation in tight spaces

Specifications

BrandBOSTON GEAR

Questions about this item

What oil changes or seal replacements does the F724-40-B5-G speed reducer need over time?

The unit uses standard gear lubricant; plan periodic oil changes and inspect the input and output seals for wear during routine maintenance.

At continuous 44 RPM output, which limit appears first — the 1 hp input rating or the 1206 in-lb torque ceiling?

The 1 hp maximum input horsepower is the limiting factor at 44 RPM; exceeding it would surpass the reducer’s rated capacity before the 1206 in-lb torque limit is reached.

How much heat and noise should I expect when the reducer runs all day at 1 hp input?

Cast-iron housing and tapered roller bearings dissipate heat effectively; expect moderate warmth and low mechanical noise at the rated 1 hp continuous load.

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