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Carbon steel jaw coupling hub, 40 mm bore, 85 mm diameter, set screw locking

Lovejoy

Lovejoy L110 40 mm Jaw Coupling Hub

SKU CH-G2VS-KK5BV

Connects 40 mm shafts with a carbon-steel hub rated to 5,000 rpm and 1.3 hp at 100 rpm using Buna-N spider

  • 40 mm bore fits metric shafts directly
  • Carbon-steel hub rated for 5 000 RPM continuous speed
  • Set-screw locking secures hub without additional hardware
  • 12 mm keyway with 3.3 mm depth transmits torque positively
  • Compatible with L110 Buna-N, Urethane and Hytrel centre elements

Jaw Coupling Hub L110 40 mm bore

The Lovejoy L110 hub is a metric jaw coupling component with a 40 mm round bore and 12 mm keyway. It is built from carbon steel for industrial power-transmission applications. The straight-jaw profile accepts L110H, L110N and L110U centre elements. It suits maintenance teams replacing worn hubs on existing L110 assemblies.

Sustained load behaviour

At 100 RPM the hub transmits 1.3 hp with a Buna-N spider, 2 hp with a urethane spider and 3.6 hp with a Hytrel spider. Maximum continuous speed is rated at 5,000 RPM. The set-screw locking method holds the hub on the shaft during steady torque delivery. Carbon steel construction resists deformation under constant load cycles.

Deciding specification

The 40 mm bore diameter and 12 mm keyway width determine whether this hub fits the driven shaft. Shafts with a different bore size or keyway profile cannot use this hub. Buyers needing a larger or smaller bore must select another size. The L110 coupling size and metric dimensions are fixed for this part.

Highlights

  • 40 mm bore fits metric shafts directly
  • Carbon-steel hub rated for 5 000 RPM continuous speed
  • Set-screw locking secures hub without additional hardware
  • 12 mm keyway with 3.3 mm depth transmits torque positively
  • Compatible with L110 Buna-N, Urethane and Hytrel centre elements

Specifications

No published specifications for this item yet.

Questions about this item

How much power does the L110 hub transmit at 100 RPM with different spider materials?

With a Buna-N spider it handles 1.3 hp, with urethane 2 hp, and with Hytrel 3.6 hp at 100 RPM.

What shaft size and keyway does the 40 mm bore require?

The hub fits a 40 mm round shaft with a 12 mm wide by 3.3 mm deep keyway, secured by a set screw.

Will the 85 mm outside diameter and 107 mm overall length clear my existing L110 centre element?

Yes — the hub matches the L110 size and works with L110H, L110N or L110U centre elements.

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