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Carbon steel jaw coupling hub, 1-1/4 inch bore, set screw locking, straight jaw profile

Lovejoy

Lovejoy L110 Jaw Coupling Hub 1-1/4 in Bore

SKU CH-N96B-BAGZE

Carbon-steel jaw coupling hub with 1-1/4 in bore and set-screw locking, rated to 5,000 RPM and compatible with L110 Buna-N, urethane or Hytrel centre elements

  • 1-1/4 in bore fits shaft directly
  • Carbon steel hub withstands 5000 RPM operation
  • Set screw locking secures hub to shaft
  • Straight jaw profile accepts L110H/N/U elements
  • Keyway 1/4 in wide by 1/8 in deep included

L110 Jaw Coupling Hub

The L110 jaw coupling hub connects shafts in power-transmission systems using a straight-jaw profile and a 1-1/4 inch round bore with a 1/4 inch keyway. It is built from carbon steel and secured with a set-screw locking method for general industrial machinery applications.

Upgrade from smaller hubs

This hub replaces smaller bore sizes when shaft diameter increases to 1-1/4 inches, and it accepts L110H, L110N or L110U center elements to change spider material without altering the hub. The step up is justified when the driven equipment requires the larger bore or a different spider compound for torque or damping needs.

Capacity and headroom

Rated at 5,000 RPM maximum speed, the hub transmits 1.3 hp at 100 RPM with a Buna-N spider, 2 hp with a urethane spider and 3.6 hp with a Hytrel spider. It handles these loads within the stated limits; beyond the rated horsepower or speed the spider or hub may become the limiting factor.

Highlights

  • 1-1/4 in bore fits shaft directly
  • Carbon steel hub withstands 5000 RPM operation
  • Set screw locking secures hub to shaft
  • Straight jaw profile accepts L110H/N/U elements
  • Keyway 1/4 in wide by 1/8 in deep included

Specifications

No published specifications for this item yet.

Questions about this item

What shaft diameter and keyway dimensions does the L110 hub accept?

The hub fits a 1 1/4 in round bore with a 1/4 in wide by 1/8 in deep keyway.

How do I secure the hub to the shaft and which step is often missed?

Tighten the set screw onto the key after aligning the key in the keyway; skipping the key installation is the common error.

Which centre element should I plan to replace and how do I identify the right one?

Use Buna-N (L110N), Urethane (L110U) or Hytrel (L110H) spiders rated for 1.3 hp, 2 hp or 3.6 hp at 100 RPM respectively.

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