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Metal jaw coupling hub with round bore and keyway, carbon steel finish

Lovejoy

Lovejoy L150 Jaw Coupling Hub 1-3/8 in v-belt

SKU CH-PWTM-401SH

Connects shafts up to 5,000 RPM with carbon steel hub and 1-3/8 in bore

  • Fits 1-3/8 in shafts with standard keyway
  • Carbon steel hub withstands high torque loads
  • Rated to 5,000 RPM for demanding drives
  • Accepts Buna-N, Urethane or Hytrel spiders
  • Set-screw locking secures hub to shaft

Coupling Hub L150 1-3/8 in

The Lovejoy L150 jaw coupling hub fits a 1-3/8 inch round bore with a standard keyway. It is made from carbon steel and uses set-screw locking for secure shaft attachment. This component suits maintenance teams replacing worn hubs on existing L150 assemblies.

Straight Jaw Profile Compatibility

The hub accepts only L150H Buna-N, L150N urethane or L150U Hytrel center elements. Selecting the wrong spider changes the torque rating and can cause premature failure. Verify the element part number before ordering.

Mounting Requirements

A 5/16 inch wide by 5/32 inch deep keyway must already exist on the shaft. The hub operates up to 5 000 RPM and transmits 2 hp at 100 RPM with a Buna-N spider. No additional hardware is included with the hub alone.

Highlights

  • Fits 1-3/8 in shafts with standard keyway
  • Carbon steel hub withstands high torque loads
  • Rated to 5,000 RPM for demanding drives
  • Accepts Buna-N, Urethane or Hytrel spiders
  • Set-screw locking secures hub to shaft

Specifications

No published specifications for this item yet.

Questions about this item

What does the 5.9 hp rating mean when the hub runs at 100 RPM with a Hytrel spider?

At 100 RPM the hub can transmit up to 5.9 hp when paired with a Hytrel center element, so the motor or drive must not exceed that power level at that speed.

What does the L150 size designation control for compatibility?

L150 fixes the outside diameter at 3 3/4 in and the overall length at 4 1/2 in, so only L150H, L150N or L150U center elements will fit this hub.

What shaft and keyway dimensions are required to mount this hub?

The hub accepts a 1-3/8 in round shaft with a 5/16 in wide by 5/32 in deep keyway and locks with a set screw.

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