We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Cast iron worm speed reducer with 56C C-face input and round output shaft

Boston Gear

Boston Gear F7713-5-B5-G Speed Reducer 5:1 56C

SKU CH-NAGN-WK3DS

A 5:1 worm speed reducer for 56C-frame motors, delivering 164 in-lb output torque at 350 RPM with a 150 lb overhung load capacity

  • 5:1 ratio delivers 164 in-lb output torque
  • 350 RPM maximum output speed for precise control
  • 1 hp maximum input power handles demanding loads
  • Cast iron housing with tapered roller bearings ensures durability
  • 33 in worm center distance fits 56C frame motors

Boston Gear F7713-5-B5-G Speed Reducer

The Boston Gear F7713-5-B5-G is a worm-gear speed reducer with a 5:1 ratio and a 56C motor frame designation. It suits OEMs and maintenance teams replacing a unit on conveyors, packaging equipment or light industrial drives where a compact right-angle gearbox is specified.

Thermals, noise and power draw

The cast-iron housing and tapered roller bearings dissipate heat during continuous duty at up to 1 hp input. Worm gearing runs with inherent sliding friction, so audible meshing noise is present at the rated 350 RPM maximum output speed.

Mounting flexibility and hardware

The unit accepts any mounting orientation and uses a C-Face input connection for direct motor coupling. A round output shaft delivers 164 in-lb maximum torque while the 150 lb overhung load capacity supports moderate radial forces without additional shaft supports.

Highlights

  • 5:1 ratio delivers 164 in-lb output torque
  • 350 RPM maximum output speed for precise control
  • 1 hp maximum input power handles demanding loads
  • Cast iron housing with tapered roller bearings ensures durability
  • 33 in worm center distance fits 56C frame motors

Specifications

BrandBOSTON GEAR

Questions about this item

How do I install the Boston Gear F7713-5-B5-G speed reducer onto a 56C-frame motor?

Bolt the unit's C-face input flange directly to the motor's 56C mounting face, ensuring the worm center distance of 1.33 in aligns with the driven shaft, and secure the cast-iron housing using the base-to-center height of 1.75 in for proper support.

What lubrication maintenance does the worm gearbox require over its service life?

The factory-filled lubricant should be inspected regularly; drain and refill with fresh EP gear oil if contamination or leakage appears around the tapered roller bearings or output shaft seal.

At what output torque does the reducer hit its thermal limit during continuous operation?

The unit is rated for a maximum output torque of 164 in-lb at 350 RPM; sustained loads near this value will reach the thermal capacity of the 1 hp input rating first.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.