Lovejoy 68514441470 Flexible Coupling Hub 25mm Bore

Product Description

The LOVEJOY 68514441470 is a flexible coupling hub designed for use in mechanical drive systems requiring vibration damping and slight misalignment compensation between connected shafts. With a 25mm maximum bore and an 8mm x 3.3mm keyway, this hub accepts keyed shafts and transmits torque through a three-piece jaw-style coupling assembly. The outer diameter measures 2.54 inches and the overall length is 3.5 inches. Constructed from sintered iron, the hub provides durable, wear-resistant performance in industrial and HVAC equipment drive applications. A licensed mechanic or millwright typically performs this installation in pump, blower, or fan drive systems.

This coupling hub fits industrial and commercial mechanical drive applications where controlled flex and misalignment tolerance are needed between a motor and driven equipment. It is sized to the L100 coupling size code and is rated for a maximum shaft speed of 7000 RPM. Two hubs and one spider element are required to complete a full coupling assembly — this listing is for a single hub only. It is commonly installed in HVAC fans, pumps, compressors, and light industrial equipment drive trains.

Key Features

• 25mm maximum bore with 8mm x 3.3mm keyway for keyed-shaft installations
• Sintered iron construction for durable, wear-resistant torque transmission
• 2.54 inch outer diameter and 3.5 inch overall length — L100 coupling size code
• Rated to 7000 RPM maximum shaft speed
• Three-piece jaw coupling design: order two hubs and one spider for a complete assembly

Compatibility

This hub carries the L100 coupling size code. Two hubs and one spider element are required for a complete flexible coupling assembly. Consult the LOVEJOY L-series coupling size chart to confirm bore, keyway, and torque rating compatibility with the driven application.

Installation Notes

Installation is typically performed by a qualified mechanic or millwright. Disconnect and lock out all power to the drive system before disassembling or assembling the coupling. Ensure shaft and bore surfaces are clean and free of burrs before pressing or sliding the hub onto the shaft. Verify shaft alignment after assembly to avoid premature spider wear and bearing load.