Lovejoy 68514441336 Flexible Coupling Hub 42mm Bore

Product Description

The LOVEJOY 68514441336 is a flexible coupling hub designed for use in power transmission applications where shaft misalignment absorption and vibration dampening are required. This hub accepts a maximum bore of 42mm and includes a 12mm wide by 3.3mm deep keyway for positive key-driven shaft engagement. The outer diameter measures 3.31 inches and the overall length is 4.25 inches. Constructed from sintered iron, this hub provides solid mechanical integrity under rotational loads up to 5000 RPM. A licensed mechanic or millwright installs this component as part of a complete jaw-style flexible coupling assembly.

This coupling hub is suited for industrial drive systems including pumps, compressors, conveyors, fans, and general power transmission equipment where flexible shaft couplings are specified. The hub is sold individually. Two hubs and one spider insert are required to complete a full coupling assembly. The coupling size code is L110, which corresponds to the LOVEJOY jaw coupling series sizing convention used to match mating hubs and spider elements of the correct torque rating and bore range.

Key Features

• 42mm maximum bore capacity with 12mm x 3.3mm keyway for secure shaft connection
• 3.31-inch outer diameter and 4.25-inch overall length for compact drive-train fitment
• Sintered iron construction for durable, wear-resistant performance under continuous rotation
• Rated to 5000 RPM maximum, suitable for a wide range of industrial drive applications
• Coupling size code L110 for straightforward matching to compatible spider and mating hub
• Sold as a single hub — order two hubs and one spider to complete the coupling assembly

Compatibility

This hub carries coupling size code L110 and is designed to pair with a matching L110-series mating hub and compatible spider insert to form a complete LOVEJOY jaw flexible coupling. Specific compatible model numbers beyond the L110 size designation were not provided in the product data.

Installation Notes

Installation is typically performed by a millwright or mechanical technician. Before assembly, ensure all connected drive equipment is de-energized and locked out per OSHA lockout/tagout procedures. Verify shaft diameter and keyway dimensions match hub bore and keyway specifications before pressing or sliding the hub onto the shaft. Do not force mismatched components. A complete coupling requires two hubs and one spider element — confirm all three components are on hand before beginning assembly.