Lovejoy 68514411085 Flexible Coupling Hub 5/8 Inch Bore

Product Description

The LOVEJOY 68514411085 is a flexible coupling hub designed for use in power transmission applications where shaft alignment and vibration damping are required. This hub features a maximum bore diameter of 5/8 inches and accepts a 3/16 inch wide by 3/32 inch deep keyway for positive shaft engagement. The outer diameter measures 2.11 inches with an overall length of 2.5 inches. Constructed from sintered iron, the hub delivers durable, consistent performance under rotational loads up to 9,000 RPM. One complete flexible coupling assembly requires two hubs and one spider element, which must be ordered separately.

This flexible coupling hub is suited for residential and light commercial mechanical and HVAC drive systems, pump drives, compressor connections, and general industrial power transmission setups. It is typically installed wherever torsional flexibility and minor misalignment compensation are needed between a driver and driven shaft. Technicians working on belt-drive or direct-drive systems will recognize this as a standard jaw-style coupling component.

Key Features

• Maximum bore diameter of 5/8 inches with 3/16 inch x 3/32 inch keyway
• 2.11 inch outer diameter for compact fitment in confined drive bays
• 2.5 inch overall length suits standard coupling envelopes
• Sintered iron construction provides strength and wear resistance
• Rated to 9,000 RPM for high-speed drive applications
• Sold individually — order two hubs and one spider for a complete assembly

Compatibility

This hub carries coupling size code L095 and is designed as an OEM-style replacement or new-installation component for jaw-style flexible coupling assemblies requiring a 5/8 inch maximum bore with keyway. Specific spider and mating hub compatibility should be verified against the L095 coupling size series.

Installation Notes

Installation is typically performed by a qualified millwright, HVAC technician, or mechanical contractor. Disconnect and lock out all power to the drive system before beginning shaft or coupling work. Ensure the bore and keyway are clean and free of burrs before pressing or sliding the hub onto the shaft. A complete flexible coupling requires two hubs and one spider element — confirm all three components are on hand before starting the installation.