Lovejoy 68514441329 Flexible Coupling Hub 19mm Bore

Product Description

The LOVEJOY 68514441329 is a flexible coupling hub designed for use in power transmission assemblies where vibration dampening and minor shaft misalignment compensation are required. This hub features a 19mm maximum bore with a 6mm wide by 2.8mm deep keyway, an outer diameter of 2.54 inches, and an overall length of 3.5 inches. Constructed from sintered iron, it provides solid load-bearing performance in industrial drive applications. Two hubs paired with one spider element are required to complete a full flexible coupling assembly. Installation is handled by millwrights, maintenance technicians, and mechanical contractors working on pump, compressor, and motor drive trains.

This coupling hub is suited for light to medium-duty industrial and commercial machinery applications including pumps, fans, conveyors, and compressor drives. The sintered iron construction handles moderate torque loads while the flexible spider element absorbs shock and compensates for angular, parallel, and axial misalignment between coupled shafts. It is rated for shaft speeds up to 7000 RPM, making it appropriate for a range of direct-drive and belt-assist configurations found in HVAC equipment, industrial fans, and process machinery.

Key Features

• 19mm maximum bore with 6mm x 2.8mm keyway for positive shaft engagement
• Sintered iron construction for consistent dimensional tolerance and durability
• 2.54 inch outer diameter and 3.5 inch overall length suit standard L-series coupling footprints
• Rated up to 7000 RPM for high-speed drive applications
• Coupling Size Code L100 for cross-reference and replacement ordering
• Order two hubs and one spider to complete a full flexible coupling assembly

Compatibility

Designed as an OEM-style replacement hub for L100 series flexible jaw couplings. Two hubs and one spider element are required per complete coupling assembly. Verify bore and keyway dimensions against shaft specifications before ordering.

Installation Notes

Installation is performed by qualified millwrights or mechanical maintenance technicians. De-energize and lock out all power to the drive system before removing or installing coupling components. Press or key the hub onto the shaft per manufacturer shaft fit tolerances and confirm proper seating before installing the spider element and mating hub. Check shaft alignment after assembly to minimize spider wear and extend coupling service life.