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Cast iron jaw coupling hub L225 with 38 mm bore and keyway

Lovejoy

Lovejoy L225 38 mm Jaw Coupling Hub Cast Iron

SKU CH-R28H-0VJCQ

Cast-iron jaw coupling hub with 38 mm bore and 127 mm outside diameter rated to 4,600 RPM

  • 38 mm bore fits metric shafts directly
  • Cast iron hub withstands high-torque loads
  • 4,600 RPM maximum speed supports fast drives
  • Set-screw locking secures hub without extra hardware
  • Compatible with L190 Buna-N, Urethane or Hytrel spiders

38 mm Bore Jaw Coupling Hub

The Lovejoy L225 hub is a cast-iron power-transmission component with a 38 mm round bore and 10 mm keyway. It uses a set-screw locking method and straight jaw profile to connect rotating shafts in industrial machinery.

Compatible Center Elements

The hub accepts L190H, L190N and L190U spider elements. Horsepower ratings at 100 RPM change with the spider material: 3.7 hp with Buna-N, 5.6 hp with urethane and 9.9 hp with Hytrel. Select the element that matches the torque requirement.

Shaft and Speed Verification

Confirm the driven shaft measures 38 mm diameter with a 10 mm keyway and 3.3 mm keyway depth. Ensure the application does not exceed 4,600 RPM. The overall length is 137 mm and outside diameter is 127 mm, so check available space between equipment.

Highlights

  • 38 mm bore fits metric shafts directly
  • Cast iron hub withstands high-torque loads
  • 4,600 RPM maximum speed supports fast drives
  • Set-screw locking secures hub without extra hardware
  • Compatible with L190 Buna-N, Urethane or Hytrel spiders

Specifications

No published specifications for this item yet.

Questions about this item

How often should the L190 spider element be inspected or replaced on the L225 hub?

The L225 hub uses L190 Buna-N, Urethane or Hytrel spiders; inspect the element during scheduled downtime and replace it when the jaws show wear, cracking or loss of torque capacity.

What is the maximum continuous speed for the 38 mm bore L225 cast-iron hub?

The hub is rated for 4,600 RPM maximum speed; sustained operation at or near this limit will be the first mechanical constraint.

How much heat or noise does the L225 hub generate when running all day at 100 RPM?

At 100 RPM the hub transmits up to 9.9 hp with a Hytrel spider; cast-iron construction keeps vibration low, and noise and heat remain minimal under normal alignment.

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