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Dayton jaw coupling hub, sintered iron finish, 1-1/8 inch bore

Dayton

Dayton 29HY50 Jaw Coupling Hub L150 1-1/8 in

SKU CH-PR91-KW967

Connects shafts with a 1-1/8 in bore, sintered iron L150 hub rated to 5,000 RPM and compatible with Buna-N, urethane or Hytrel spiders

  • Sintered iron hub withstands heavy industrial loads
  • L150 size matches standard spider elements for easy replacement
  • 1-1/8 inch bore with keyway fits common shaft dimensions
  • Set-screw locking secures hub without additional hardware
  • Rated up to 5,000 RPM for high-speed applications

Jaw Coupling Hub L150 1-1/8 in Bore

This Dayton jaw coupling hub fits shafts with a 1-1/8 inch bore and a 1/4 inch keyway. The sintered iron body is rated for speeds up to 5,000 RPM. It uses a set-screw locking method and a straight jaw profile. The hub accepts L150 series centre elements.

Replaces Worn L150 Hubs

Swap this hub when an existing L150 hub shows bore wear, keyway damage or cracked jaws. The upgrade is worthwhile when the driven equipment demands the full torque capacity of the Hytrel spider at 5.9 hp per 100 RPM. A direct replacement restores alignment without changing the coupling size.

Suits Inch-Shaft Machinery Builders

This hub suits maintenance teams and OEMs working with inch-dimension shafts and L150 elements. It is not for applications that require metric bores, clamp-style locking or a different coupling series. Buyers needing a larger bore diameter or a higher speed rating must select another hub.

Highlights

  • Sintered iron hub withstands heavy industrial loads
  • L150 size matches standard spider elements for easy replacement
  • 1-1/8 inch bore with keyway fits common shaft dimensions
  • Set-screw locking secures hub without additional hardware
  • Rated up to 5,000 RPM for high-speed applications

Specifications

No published specifications for this item yet.

Questions about this item

What bore diameter and keyway size does the L150 hub need on the shaft?

The hub has a 1 1/8 in round bore with a 1/4 in wide by 1/8 in deep keyway.

How is the hub secured to the shaft, and what step is often missed?

Two set screws lock the hub; the common mistake is not tightening the screw over the keyway first to seat the key.

Which centre element should I keep on hand for replacement?

Compatible spiders are part numbers L150H for Hytrel, L150N for Buna-N, and L150U for urethane.

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