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Carbon steel jaw coupling hub, 45 mm bore, 95 mm OD, 114 mm length, set-screw lock

Lovejoy

Lovejoy L150 45 mm Jaw Coupling Hub

SKU CH-KPQQ-QSAX8

Transmits up to 5.9 hp at 100 rpm with a 45 mm bore, 95 mm outside diameter and set-screw locking

  • 45 mm bore fits standard metric shafts
  • Carbon steel hub withstands 5,000 RPM operation
  • Set-screw locking secures hub without extra hardware
  • Accepts Buna-N, Urethane or Hytrel spiders for flexible torque
  • 95 mm outside diameter suits L150 coupling assemblies

L150 45 mm Jaw Coupling Hub

The Lovejoy L150 hub is a metric jaw coupling component designed for power transmission between two shafts. It suits maintenance engineers and machine builders who need a 45 mm bore with a standard keyway for direct motor or gearbox connection.

Check shaft diameter and keyway before ordering

Verify that the driven and driving shafts measure exactly 45 mm and provide a 14 mm wide by 3.3 mm deep keyway. The hub uses a set screw locking method, so the shaft must allow a threaded hole for the screw. Confirm the centre element part number matches L150H, L150N or L150U for the required spider material.

Fits standard L150 elements

The hub accepts Buna-N, urethane or Hytrel centre elements rated up to 5.9 hp at 100 rpm. Its straight jaw profile and 95 mm outside diameter allow angular and parallel misalignment compensation without additional bearings. The 114 mm overall length keeps the assembly compact inside existing guard space.

Highlights

  • 45 mm bore fits standard metric shafts
  • Carbon steel hub withstands 5,000 RPM operation
  • Set-screw locking secures hub without extra hardware
  • Accepts Buna-N, Urethane or Hytrel spiders for flexible torque
  • 95 mm outside diameter suits L150 coupling assemblies

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box and what must be purchased separately to complete the coupling?

The hub is supplied alone. A compatible L150 centre element (Buna-N, Urethane or Hytrel) and a second hub for the driven shaft must be ordered separately.

Which spider material should be chosen for the highest horsepower at 100 RPM?

The Hytrel spider delivers 5.9 hp at 100 RPM, compared with 3 hp for Urethane and 2 hp for Buna-N.

What does the 5,000 RPM limit mean for continuous operation on a 45 mm shaft?

The hub is rated to 5,000 RPM maximum speed; actual continuous speed must stay at or below this value and will depend on alignment, balance and the selected spider.

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