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Cast iron jaw coupling hub L190 with 1-5/8 inch bore and keyway

Lovejoy

Lovejoy L190158 L190 Jaw Coupling Hub Cast Iron 1-5/8 in Bore

SKU CH-CRVA-ACYKN

Cast-iron jaw coupling hub with 1-5/8 in bore, keyway and set-screw locking, rated to 5,000 RPM and compatible with L190 Buna-N, urethane or Hytrel spiders

  • Cast iron hub handles 5,000 RPM for reliable power transmission
  • 1-5/8 in bore with 3/8 in keyway fits standard shafts
  • Set-screw locking secures hub without extra hardware
  • Buna-N spider delivers 2.7 hp at 100 RPM for moderate loads
  • Compatible with L190H, L190N and L190U center elements for flexible replacement

Coupling Hub for 1-5/8 in Shafts

The Lovejoy L190158 is a cast-iron jaw coupling hub bored to 1-5/8 inches with a standard keyway and set-screw locking. It mates with L190 Buna-N, urethane or Hytrel center elements to connect driver and driven shafts in general industrial power-transmission applications.

Sustained Torque Through Three Spider Choices

At 100 RPM the hub transmits 2.7 hp with a Buna-N spider, 4.1 hp with urethane and 7.4 hp with Hytrel, giving designers a range of continuous torque and damping characteristics without changing the hub. The 5,000 RPM maximum speed rating applies to all three spider materials under steady-state conditions.

L190 Series Dimensional Envelope

The hub’s 4-1/2 inch outside diameter and 4-7/8 inch overall length define the space claim for any L190 element, so the coupling fits only where that envelope clears adjacent components. Buyers needing a smaller radial footprint or a different bore size must select another coupling series.

Highlights

  • Cast iron hub handles 5,000 RPM for reliable power transmission
  • 1-5/8 in bore with 3/8 in keyway fits standard shafts
  • Set-screw locking secures hub without extra hardware
  • Buna-N spider delivers 2.7 hp at 100 RPM for moderate loads
  • Compatible with L190H, L190N and L190U center elements for flexible replacement

Specifications

No published specifications for this item yet.

Questions about this item

Does the L190 hub generate noticeable heat or noise when running continuously at 5,000 RPM?

At its 5,000 RPM maximum speed the cast-iron hub itself adds minimal heat or noise; the spider element choice — Buna-N, urethane or Hytrel — determines damping and temperature rise.

What shaft preparation is required before mounting the 1-5/8 in bore hub with its 3/8 in keyway and set-screw locking?

The shaft must be round, measure 1-5/8 in diameter, and include a 3/16 in deep by 3/8 in wide keyway so the hub seats and locks securely.

Can the L190 hub be paired with an older L190H, L190N or L190U spider already on the machine?

Yes — the hub is designed for L190H Buna-N, L190N urethane and L190U Hytrel centre elements, so existing spiders with those part numbers fit directly.

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