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Cast iron worm speed reducer with 56C C-face input and round output shaft

Boston Gear

Boston Gear F7715-10-B5-G Speed Reducer 56C 10:1

SKU CH-JF4H-QJ2T9

A worm-gear speed reducer with a 10:1 ratio, 56C C-face input and 320 in-lb output torque

  • Delivers 320 in-lb torque for heavy loads
  • 10:1 ratio reduces speed to 175 RPM output
  • 56C C-face mounts directly to standard motors
  • Cast-iron housing with tapered-roller bearings handles 150 lb overhung load
  • Any-angle mounting simplifies installation in tight spaces

Speed Reducer for 56C Motors

The Boston Gear F7715-10-B5-G is a worm gear speed reducer built for 56C frame motors. It provides a fixed 10:1 reduction ratio with a maximum output speed of 175 RPM. The unit handles up to 1 hp input and delivers 320 in-lb of output torque. It suits industrial machinery requiring reliable speed reduction and torque multiplication.

Cast Iron Housing with Flexible Mounting

The housing uses cast iron for structural rigidity and contains tapered roller bearings supporting a hardened and ground steel worm gear. A 1.54 in worm center distance and 1.91 in base-to-center dimension define the footprint. The C-Face input connects directly to compatible motors while the round output shaft accepts standard couplings. Mounting orientation works at any angle and the overhung load capacity reaches 150 lb.

Ships Ready for Installation

The reducer arrives assembled and lubricated for immediate mounting. No separate accessories or configuration software are included in the supply. The unit carries a California Proposition 65 notice for chemicals known to cause cancer and reproductive harm. It is restricted from sale in certain states as noted by the supplier.

Highlights

  • Delivers 320 in-lb torque for heavy loads
  • 10:1 ratio reduces speed to 175 RPM output
  • 56C C-face mounts directly to standard motors
  • Cast-iron housing with tapered-roller bearings handles 150 lb overhung load
  • Any-angle mounting simplifies installation in tight spaces

Specifications

BrandBOSTON GEAR

Questions about this item

What does the 10:1 gear ratio mean for output speed and torque?

The 10:1 ratio limits maximum output speed to 175 RPM while delivering up to 320 in-lb of output torque at 1 hp input.

What mounting dimensions must match for the 56C frame?

The unit requires a 1.54 in worm center distance and a 1.91 in base-to-center height for proper 56C C-face alignment.

How is the speed reducer installed and what step is often missed?

Bolt the C-face input to the 56C motor, secure the base at any angle, then verify the 150 lb overhung load limit on the output shaft before running.

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