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Carbon steel jaw coupling hub, 14 mm bore, 54 mm diameter

Lovejoy

Lovejoy L090 14 mm Jaw Coupling Hub

SKU CH-ZKNC-K20YC

Connects 14 mm shafts in power-transmission systems with a carbon-steel hub rated to 9,000 RPM

  • 14 mm bore with keyway fits metric shafts directly
  • 54 mm diameter handles up to 9 000 RPM
  • 64 hp at 100 RPM with Hytrel spider
  • Carbon steel hub resists wear in power transmission
  • Set-screw locking secures hub without extra hardware

L090 jaw coupling hub with 14 mm bore

The Lovejoy L090 hub is a carbon-steel coupling component with a 14 mm round bore and 5 mm keyway. It suits maintenance teams and OEM builders joining metric shafts in general-purpose machinery. The straight-jaw profile accepts Buna-N, Urethane or Hytrel centre elements for a range of torque requirements.

Check shaft diameter and keyway before ordering

Verify that the driven and driving shafts are exactly 14 mm diameter with a 5 mm keyway and 2.3 mm keyway depth. Confirm the coupling overall length of 54 mm fits the available space between shaft ends. Ensure the set-screw locking method matches your assembly procedure and that the required centre element (L090H, L090N or L090U) is specified separately.

Rated to 9 000 rpm with three spider options

Maximum operating speed is 9 000 rpm, with power ratings at 100 rpm of 0.23 hp for Buna-N, 0.35 hp for Urethane and 0.64 hp for Hytrel spiders. Carbon-steel construction and the straight-jaw design transmit torque without lubrication. Noise and vibration levels depend on spider choice, alignment quality and driven-load characteristics.

Highlights

  • 14 mm bore with keyway fits metric shafts directly
  • 54 mm diameter handles up to 9 000 RPM
  • 64 hp at 100 RPM with Hytrel spider
  • Carbon steel hub resists wear in power transmission
  • Set-screw locking secures hub without extra hardware

Specifications

No published specifications for this item yet.

Questions about this item

Does the L090 hub ship with the spider element or must it be ordered separately?

The hub is sold alone; the compatible Buna-N, Urethane or Hytrel centre elements (part numbers L090H, L090N, L090U) are purchased separately.

How do the three spider materials change the 100 RPM horsepower rating for this 14 mm bore hub?

Buna-N gives 0.23 hp, Urethane gives 0.35 hp and Hytrel gives 0.64 hp at 100 RPM, so choose the element that matches the torque you need.

What does the 9 000 RPM maximum speed mean once the hub is mounted on a 14 mm shaft?

The complete coupling assembly must not exceed 9 000 RPM; ensure the driven equipment and spider selection stay within that limit for safe operation.

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