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New carbon steel jaw coupling hub, 19 mm bore, 54 mm diameter, straight jaws, set screw locking

Lovejoy

Lovejoy L090 19 mm Jaw Coupling Hub

SKU CH-5BSH-TCSN5

Transmits up to 9 000 RPM with a 19 mm bore, keyway and set-screw locking

  • 19 mm bore fits standard shafts
  • Carbon steel hub handles up to 9 000 RPM
  • Set-screw locking secures the hub to the shaft
  • Straight jaw profile accepts L090 Buna-N, Urethane or Hytrel spiders
  • Delivers 0.23 hp at 100 RPM with Buna-N spider

Jaw Coupling Hub 19 mm Bore

The Lovejoy L090 hub transmits torque between two shafts in light-duty industrial drives. A 19 mm round bore with a 6 mm keyway and set-screw locking secures the hub to the motor or driven shaft. Carbon-steel construction handles speeds up to 9,000 rpm in metric-dimensioned equipment.

Suits metric-shaft light drives.

This hub fits 19 mm shafts only, so builders needing a different bore diameter must choose another size. The straight jaw profile requires a compatible L090 spider element sold separately. Applications demanding higher torque capacity than the listed ratings should select a larger coupling series.

0.64 hp at 100 rpm with Hytrel spider

The highest catalogued power rating is 0.64 hp at 100 rpm when paired with a Hytrel centre element. Buna-N and Urethane spiders provide 0.23 hp and 0.35 hp respectively at the same speed. Select the spider material to match the torque requirement of the drive.

Highlights

  • 19 mm bore fits standard shafts
  • Carbon steel hub handles up to 9 000 RPM
  • Set-screw locking secures the hub to the shaft
  • Straight jaw profile accepts L090 Buna-N, Urethane or Hytrel spiders
  • Delivers 0.23 hp at 100 RPM with Buna-N spider

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 19 mm bore hub on the shaft and what step is often missed?

Slide the hub onto the 19 mm shaft, align the 6 mm keyway with the shaft key, then tighten the set screws over the key to lock it; the step often missed is tightening both set screws after the key is seated.

What maintenance or replacement will the L090 hub need later?

The hub itself is carbon steel and needs no routine replacement; only the Buna-N, Urethane or Hytrel spider element (part numbers L090N, L090U, L090H) wears and should be inspected periodically.

At what speed limit does the L090 hub reach its maximum rating under sustained use?

The hub is rated to 9,000 RPM; sustained operation at or above that speed exceeds the published maximum.

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