Lovejoy 68514411520 Flexible Coupling Hub 1-1/4 in Bore

Product Description

The LOVEJOY 68514411520 is a flexible coupling hub designed for use in mechanical power transmission applications. It accepts a maximum bore diameter of 1-1/4 inches and is machined with a keyway measuring 1/4 inch wide by 1/8 inch deep for positive shaft engagement. The hub measures 2.54 inches in outer diameter and 3-1/2 inches in overall length. Constructed from sintered iron, this hub delivers solid, repeatable performance in demanding drive-train setups. It is rated to 7,000 RPM and carries the L100 coupling size code. Two hubs and one spider element are required to complete a full flexible coupling assembly. Installation is handled by mechanical and industrial maintenance technicians.

This hub fits industrial and commercial mechanical drive systems where shaft misalignment compensation and vibration dampening are needed. Typical applications include pumps, compressors, fans, and conveyor drives where a jaw-style flexible coupling connects two shaft ends. The L100 size designation helps identify compatible spider elements and mating hubs within the LOVEJOY L-series coupling family. This part is sold individually — order two hubs and one spider separately to assemble a complete coupling.

Key Features

• 1-1/4 inch maximum bore diameter for secure shaft fit
• 1/4 inch x 1/8 inch keyway for positive rotational drive engagement
• 2.54 inch outer diameter and 3-1/2 inch overall length
• Sintered iron construction for durability in industrial environments
• Rated to 7,000 RPM maximum speed
• L100 coupling size code — requires two hubs plus one spider for a complete assembly

Compatibility

This hub carries the L100 coupling size code and is designed for use with compatible L100-series spider elements and mating hubs. Two hubs and one spider element are required to complete a flexible coupling assembly. Verify bore size and keyway dimensions against shaft specifications before ordering.

Installation Notes

Installation is typically performed by a qualified millwright, industrial mechanic, or maintenance technician. De-energize and lock out the drive motor before beginning any coupling work, in accordance with OSHA lockout/tagout procedures. Ensure shaft and bore are clean and free of burrs before pressing or sliding the hub into position. Do not exceed the rated 7,000 RPM maximum speed in the final application.