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Blue urethane spider insert for L075 coupling, 1 47/64 inch outside diameter

Lovejoy

Lovejoy L075U Urethane Spider Insert 1 47/64 in

SKU CH-S764-KBME8

Urethane spider insert for L075 couplings, rated to 11,000 RPM with 135 in-lb torque capacity and 90A durometer hardness

  • Rated for 11,000 RPM maximum speed
  • Handles 135 in-lb peak torque capacity
  • 90A durometer urethane resists wear
  • Accommodates 0.015 in parallel misalignment
  • Fail-safe design protects connected equipment

L075 Urethane Spider Insert

This urethane spider insert fits Lovejoy L075 jaw couplings with an outside diameter of 1 47/64 inches. It is designed for power-transmission applications such as blowers, compressors, generators and pumps. The polyurethane spider has a 90A durometer hardness and a blue colour for visual identification. It provides a fail-safe connection between compatible hubs.

Sustained load performance

The insert is rated for a maximum speed of 11,000 RPM and transmits 0.21 horsepower at 100 RPM. Maximum torque capacity is 135 in-lb, allowing continuous power delivery within these limits. It accommodates parallel misalignment up to 0.015 inches and angular misalignment up to 1 degree. These ratings define the operating envelope for extended duty cycles.

Deciding specification

The critical specification is the L075 coupling size with a 1 47/64 inch outside diameter, which must match the hub exactly. The insert suits hubs with a maximum bore of 7/8 inch and is compatible with hub manufacturer part number L075. Buyers needing a different coupling size or a higher torque rating cannot use this part.

Highlights

  • Rated for 11,000 RPM maximum speed
  • Handles 135 in-lb peak torque capacity
  • 90A durometer urethane resists wear
  • Accommodates 0.015 in parallel misalignment
  • Fail-safe design protects connected equipment

Specifications

No published specifications for this item yet.

Questions about this item

How much heat and power draw should I expect from the L075U urethane spider running continuously at its 11,000 RPM limit?

The spider itself generates no heat or power draw; it transmits up to 0.21 hp at 100 RPM with a maximum torque of 135 in-lb, so thermal load depends on the driven equipment.

Which hubs must I already have for this L075U insert to fit and operate?

You need L075-sized coupling hubs with a maximum bore of 7/8 in; the insert's 1 47/64 in outside diameter matches that hub size.

Will this 90A durometer urethane spider tolerate the misalignment in my older pump-motor setup?

Yes, it accommodates 0.015 in parallel misalignment and 1 degree angular misalignment, and its fail-safe design keeps the coupling functional if the spider wears.

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