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Aluminum jaw coupling hub with 1-1/8 inch bore and keyway

Lovejoy

Lovejoy AL110118 Jaw Coupling Hub 1-1/8 in Bore

SKU CH-KEHK-23CAJ

Aluminum jaw coupling hub with 1-1/8 inch bore and keyway for L110 series elements, rated to 5,000 RPM

  • Aluminium hub resists corrosion while weighing less than steel
  • 1-1/8 in bore with 1/4 in keyway fits standard shafts
  • Set-screw locking secures hub without additional hardware
  • Compatible with Buna-N, Urethane or Hytrel centre elements
  • Rated for 5,000 RPM and up to 3.6 hp at 100 RPM

Application & Fit

This Lovejoy AL110118 jaw coupling hub connects inch-series shafts with a 1-1/8 inch bore and standard keyway. It accepts L110H Buna-N, L110N urethane or L110U Hytrel center elements so torque capacity matches the elastomer choice. The aluminum hub suits general industrial drives where weight and corrosion resistance matter.

Build Integration

The straight-jaw profile and set-screw locking simplify alignment on existing shafts without special tooling. Outside diameter is 3 21/64 inches and overall length 4 15/64 inches, defining the space the assembly occupies between connected equipment. Selecting the spider material determines whether the hub transmits 1.3 hp, 2 hp or 3.6 hp at 100 RPM.

Thermals & Power

Aluminum construction helps dissipate heat generated by the flexible element during continuous operation. Maximum rated speed is 5,000 RPM, setting the upper limit for safe thermal and mechanical performance. Power draw in normal use follows the horsepower rating of the chosen spider at the actual operating speed.

Highlights

  • Aluminium hub resists corrosion while weighing less than steel
  • 1-1/8 in bore with 1/4 in keyway fits standard shafts
  • Set-screw locking secures hub without additional hardware
  • Compatible with Buna-N, Urethane or Hytrel centre elements
  • Rated for 5,000 RPM and up to 3.6 hp at 100 RPM

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum continuous speed for the L110 hub?

The hub is rated for a maximum speed of 5,000 RPM under sustained operation.

How much heat or power loss should I expect at the 5,000 RPM limit?

At 100 RPM the Buna-N spider transmits 1.3 hp, the Urethane spider 2 hp and the Hytrel spider 3.6 hp; power capacity scales with speed.

Which centre element part numbers fit this hub?

Compatible centre elements are manufacturer part numbers L110H, L110N and L110U.

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