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Blue urethane spider insert, L225 jaw coupling component, 4 31/32 inch diameter

Lovejoy

Lovejoy L225U Urethane Spider Insert L-Jaw Coupling

SKU CH-B1BW-BAPQZ

Urethane spider insert for L225 jaw couplings rated to 4,600 RPM and 3,510 in-lb torque

  • Urethane spider handles 3,510 in-lb torque for reliable power transfer
  • Rated 5.6 hp at 100 RPM suits blowers, compressors, generators and pumps
  • 90A durometer urethane resists wear while damping vibration
  • Allows 1° angular and 0.015 in parallel misalignment for flexible installation
  • Fail-safe design maintains drive engagement if spider wears

Lovejoy L225U Urethane Spider Insert

The Lovejoy L225U is a urethane spider insert designed for L-Jaw couplings in power transmission systems. It fits coupling size L225 with an outside diameter of 4 31/32 inches. The insert is coloured blue and rated for a maximum speed of 4,600 RPM with a maximum torque of 3,510 in-lb.

Who This Suits and Who Should Look Elsewhere

This insert suits maintenance teams and OEMs replacing worn spiders in existing L225 hubs where parallel misalignment of 0.015 inches and angular misalignment of 1 degree are present. It is not for buyers who need a different coupling size, a different durometer hardness, or a complete hub assembly rather than just the spider insert.

Capacity and Headroom

At 100 RPM the insert transmits 5.6 hp and handles up to 3,510 in-lb of torque within its 90A durometer rating. The fail-safe design provides continued operation if the spider fails. Headroom decreases as speed approaches the 4,600 RPM limit or when misalignment exceeds the stated 0.015 inch parallel and 1 degree angular allowances.

Highlights

  • Urethane spider handles 3,510 in-lb torque for reliable power transfer
  • Rated 5.6 hp at 100 RPM suits blowers, compressors, generators and pumps
  • 90A durometer urethane resists wear while damping vibration
  • Allows 1° angular and 0.015 in parallel misalignment for flexible installation
  • Fail-safe design maintains drive engagement if spider wears

Specifications

No published specifications for this item yet.

Questions about this item

Which hub bore size must I already have for the L225U insert to fit?

The insert is made for hubs with a maximum bore of 2 5/8 in and the compatible hub part number is L225.

Will the 90A durometer urethane spider transmit torque to older steel hubs without excessive wear?

Yes, the polyurethane spider is rated for 3,510 in-lb maximum torque and 4,600 RPM with fail-safe operation on compatible L225 hubs.

How can I verify the insert is seated correctly after installation?

Check that parallel misalignment stays within 0.015 in and angular misalignment within 1 degree during operation.

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