Lovejoy 68514441319 Flexible Coupling Hub 19mm Bore

Product Description

The LOVEJOY 68514441319 is a flexible coupling hub designed for use in power transmission assemblies requiring precise torque transfer and minor misalignment compensation. This hub features a 19mm maximum bore and a 6mm wide by 2.8mm deep keyway for secure shaft engagement. The hub measures 1.36 inches in outer diameter and 2 inches in overall length, making it a compact component suited for tight drive train configurations. Constructed from sintered iron, it offers consistent dimensional accuracy and adequate strength for moderate-duty rotating equipment applications. Two hubs and one spider element are required to complete a full flexible coupling assembly.

This coupling hub is used in mechanical drive systems where a flexible element is needed between two shafts to accommodate slight angular, parallel, or axial misalignment. Typical applications include pump drives, compressor drives, conveyor systems, and light industrial machinery. The L070 coupling size code designates the hub family and determines compatibility with the appropriate spider insert. Licensed mechanical contractors and industrial maintenance technicians are the typical installers for this type of component.

Key Features

• 19mm maximum bore accommodates a range of shaft sizes up to that diameter
• 6mm x 2.8mm keyway width and depth for positive keyed shaft connection
• 1.36 inch outer diameter and 2 inch overall length for compact installation footprint
• Sintered iron construction provides consistent dimensional tolerances
• Rated to 14000 RPM maximum for high-speed drive applications
• Coupling size code L070 for spider and mating hub selection

Compatibility

This hub is part of the L070 coupling size family. Two hubs of this part number paired with one appropriately rated spider element are required to complete a functional flexible coupling assembly. Consult the LOVEJOY L070 series selection guide to confirm spider durometer and torque rating for the specific application.

Installation Notes

Installation of flexible coupling hubs is typically performed by licensed mechanical or industrial maintenance technicians. Disconnect and lock out all power to the drive system before mounting or removing any coupling components. Ensure shaft and bore surfaces are clean and free of burrs before pressing or sliding the hub onto the shaft. Do not operate the coupling above the rated maximum RPM, and verify proper spider installation between the two hubs before returning the drive system to service.