Lovejoy 68514436168 Flexible Coupling Hub 2.375in Bore

Product Description

The LOVEJOY 68514436168 is a flexible coupling hub designed for power transmission applications in industrial and mechanical systems. This cast iron hub accepts a maximum bore diameter of 2.375 inches and is machined with a keyway measuring 0.625 inches wide by 0.3125 inches deep. The hub measures 6.35 inches in outer diameter with an overall length of 5.06 inches. At 6.06 pounds, it is built for durability under continuous rotational loads. Coupling size code 9S identifies its series designation for matching with compatible spider elements and mating hubs. It is typically installed by millwrights, mechanical technicians, or HVAC and industrial equipment service professionals.

This flexible coupling hub is suited for use in pumps, compressors, fans, blowers, and general power transmission equipment found in commercial and industrial facilities. The cast iron construction handles moderate shock loads and provides dimensional stability in enclosed drive applications. It is rated to a maximum speed of 3750 RPM, making it appropriate for direct-drive and belt-adjacent configurations where shaft alignment correction and vibration dampening are required. The keyway drive ensures positive torque transfer between the shaft and hub under load.

Key Features

• Maximum bore diameter of 2.375 inches accommodates a wide range of shaft sizes
• Keyway dimensions of 0.625 inches wide by 0.3125 inches deep for positive shaft engagement
• Cast iron construction provides strength and dimensional stability under load
• 6.35 inches outer diameter and 5.06 inches overall length for series 9S applications
• Rated to 3750 RPM maximum operating speed
• Coupling size code 9S for proper spider element and mating hub selection

Compatibility

Designed as an OEM-style replacement or new-installation flexible coupling hub for size code 9S coupling assemblies in industrial power transmission applications. Verify bore, keyway, and OD dimensions against the mating hub and spider element before installation.

Installation Notes

Installation of flexible coupling hubs is typically performed by qualified millwrights or mechanical technicians. De-energize and lock out all power sources before beginning shaft work. Ensure shaft and bore surfaces are clean and free of burrs before pressing or sliding the hub into position. Align mating hubs within acceptable angular and parallel tolerances per the coupling manufacturer's guidelines before placing the spider element.