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Cast iron jaw coupling hub L190 with 1-1/2 inch bore and keyway

Lovejoy

Lovejoy L190112 Jaw Coupling Hub L190 Cast Iron 1-1/2 in Bore

SKU CH-34CP-5SJZ0

Cast iron jaw coupling hub with 1-1/2 in bore and set-screw locking for L190 spider elements rated up to 7.4 hp at 100 RPM

  • Cast iron hub handles up to 5,000 RPM for reliable power transmission
  • 1-1/2 inch bore with 3/8 inch keyway fits standard shafts directly
  • Set screw locking secures hub without additional hardware
  • Three spider options deliver 2.7 hp, 4.1 hp or 7.4 hp at 100 RPM
  • L190 size matches L190H, L190N and L190U centre elements

Jaw Coupling Hub L190 Cast Iron

The Lovejoy L190112 is a cast-iron jaw coupling hub built for power-transmission systems. It accepts a 1-1/2 inch round bore with a 3/8 inch keyway and secures to the shaft with a set screw. Maintenance teams and machinery builders use it to join driving and driven equipment in industrial drives.

Coupling Size L190 with 5 000 RPM limit

The hub carries the L190 size designation and an outside diameter of 4 1/2 inches. Its maximum operating speed is 5 000 RPM, which determines whether the hub matches the application’s rotational demands. Selecting the correct spider material then sets the torque capacity at 100 RPM.

Fits L190H, L190N and L190U center elements

The straight-jaw profile mates with Buna-N, urethane or Hytrel spiders carrying part numbers L190H, L190N or L190U. This compatibility lets the assembler choose the spider that delivers the required horsepower rating — 2.7 hp, 4.1 hp or 7.4 hp at 100 RPM — without changing the hub. Builds needing a different bore size or a clamp-style lock will require another hub.

Highlights

  • Cast iron hub handles up to 5,000 RPM for reliable power transmission
  • 1-1/2 inch bore with 3/8 inch keyway fits standard shafts directly
  • Set screw locking secures hub without additional hardware
  • Three spider options deliver 2.7 hp, 4.1 hp or 7.4 hp at 100 RPM
  • L190 size matches L190H, L190N and L190U centre elements

Specifications

No published specifications for this item yet.

Questions about this item

What does the 2.7 hp at 100 RPM rating mean for my drive?

It shows the continuous torque capacity when using a Buna-N spider at low speed; torque scales with RPM so the same hub handles 4.1 hp with urethane or 7.4 hp with Hytrel elements at 100 RPM.

What standard governs the L190 jaw profile and which spiders are compatible?

The straight-jaw L190 profile accepts L190H, L190N and L190U center elements, limiting torque and misalignment capability to those spider ratings.

What shaft and mounting details must I match for the 1-1/2 in bore?

The hub fits a 1-1/2 in round shaft with a 3/8 in wide by 3/16 in deep keyway and is secured by a set screw.

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