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Cast iron jaw coupling hub L225, 55 mm bore, 127 mm OD, 137 mm length

Lovejoy

Lovejoy L225 55 mm Jaw Coupling Hub Cast Iron

SKU CH-T3FT-20R1K

A cast-iron jaw coupling hub for 55 mm shafts, rated to 4,600 RPM with up to 9.9 hp at 100 RPM using a Hytrel spider

  • 55 mm bore fits standard metric shafts
  • 127 mm outside diameter suits L225 coupling assemblies
  • Cast iron hub withstands up to 4,600 RPM
  • Delivers 3.7 hp at 100 RPM with Buna-N spider
  • Set-screw locking with 16 mm keyway ensures secure torque transfer

L225 55 mm Jaw Coupling Hub

The Lovejoy L225 jaw coupling hub is a cast-iron power-transmission component with a 55 mm round bore and 16 mm keyway. It uses a set-screw locking method and straight jaw profile to connect rotating shafts in metric-dimensioned machinery.

Suits metric shafting needing 55 mm bore

This hub fits applications that require a 55 mm bore with a 4.3 mm keyway depth and 16 mm keyway width. It is not for shafts with larger or smaller diameters, splined profiles, or clamp-style locking requirements.

Rated 4,600 RPM with spider-dependent horsepower

At 100 RPM the hub transmits 3.7 hp with a Buna-N spider, 5.6 hp with urethane, and 9.9 hp with Hytrel. Continuous operation at the 4,600 RPM limit depends on the selected spider material and proper alignment.

Highlights

  • 55 mm bore fits standard metric shafts
  • 127 mm outside diameter suits L225 coupling assemblies
  • Cast iron hub withstands up to 4,600 RPM
  • Delivers 3.7 hp at 100 RPM with Buna-N spider
  • Set-screw locking with 16 mm keyway ensures secure torque transfer

Specifications

No published specifications for this item yet.

Questions about this item

What shaft diameter and keyway dimensions must my motor shaft have to fit the 55 mm bore on this L225 hub?

The hub accepts a 55 mm round bore with a 16 mm wide by 4.3 mm deep keyway for positive torque transmission.

Which spider elements can I pair with this cast-iron L225 hub if I keep my existing Buna-N, urethane or Hytrel centre members?

Compatible centre elements carry manufacturer part numbers L190H, L190N and L190U, covering all three spider materials.

How do I confirm the hub is transmitting its rated 3.7 hp at 100 rpm with a Buna-N spider after installation?

Run the drive at 100 rpm and verify the motor delivers 3.7 hp without vibration or overheating; the hub is rated to 4,600 rpm maximum.

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