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Dayton jaw coupling hub L110 sintered iron 1-3/8 in bore

Dayton

Dayton 29HY71 Jaw Coupling Hub L110 1-3/8 in

SKU CH-A10S-5QSJV

Shaft coupler body for L110 jaw couplings, 1-3/8 in bore with keyway, sintered iron hub rated to 5,000 RPM

  • L110 jaw coupling hub fits 1-3/8 in shafts with keyway
  • Sintered iron construction withstands 5,000 RPM continuous operation
  • Set-screw locking secures hub to round bore shafts
  • Buna-N spider delivers 1.3 hp at 100 RPM
  • Urethane spider option raises capacity to 2.0 hp at 100 RPM

Coupling Hub L110 1-3/8 in

The Dayton 29HY71 is a sintered iron jaw coupling hub sized L110 with a 1-3/8 inch bore and keyway. It connects two shafts using a separate spider element to transmit torque while dampening vibration in industrial power transmission systems.

Fits inch shafts needing set-screw locking

This hub suits maintenance teams replacing a worn L110 hub on existing equipment where the shaft diameter and keyway match. It does not suit applications requiring a different bore size, a clamp or keyless locking method, or a metric shaft diameter.

Handles up to 5,000 RPM with spider-dependent power

At 100 RPM the hub transmits 1.3 hp with a Buna-N spider, 2.0 hp with urethane, or 3.6 hp with Hytrel. Higher speeds reduce allowable power, and the hub cannot operate without a correctly rated spider element installed.

Highlights

  • L110 jaw coupling hub fits 1-3/8 in shafts with keyway
  • Sintered iron construction withstands 5,000 RPM continuous operation
  • Set-screw locking secures hub to round bore shafts
  • Buna-N spider delivers 1.3 hp at 100 RPM
  • Urethane spider option raises capacity to 2.0 hp at 100 RPM

Specifications

No published specifications for this item yet.

Questions about this item

What shaft diameter and keyway dimensions does the 1-3/8 in bore require?

The hub fits a 1-3/8 in round shaft with a 5/16 in wide by 5/32 in deep keyway.

Can the L110 hub run at 5,000 RPM with the existing spider material?

Yes, the hub is rated to 5,000 RPM; horsepower at 100 RPM depends on spider: 1.3 hp Buna-N, 2.0 hp Urethane, 3.6 hp Hytrel.

How do I verify the hub is seated and aligned after installation?

Tighten the set screw on the key, confirm the spider sits fully in both jaws, then check for smooth rotation without binding or wobble.

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