Lovejoy 68514441315 Flexible Coupling Hub 12mm Bore

Product Description

The LOVEJOY 68514441315 is a flexible coupling hub designed for use in mechanical power transmission applications. With a 12mm maximum bore and a 4mm x 1.8mm keyway width and depth, this sintered iron hub connects rotating shafts while accommodating minor misalignment and reducing vibration transfer. It measures 1.08 inches in outer diameter and 1.72 inches in overall length. Rated to 18,000 RPM, this hub suits high-speed drive configurations. Two hubs and one spider element are required to complete a full flexible coupling assembly. Installation is handled by mechanical and industrial trades working on motors, pumps, compressors, and similar rotating equipment.

This coupling hub fits into light-duty and medium-duty industrial drive trains where shaft-to-shaft flexibility and vibration dampening are required. The L050 coupling size code designates its fit within the standard jaw-style flexible coupling lineup. Typical applications include electric motor output shafts, small pump drives, conveyor drives, and HVAC fan assemblies where precise shaft alignment is difficult to guarantee. The sintered iron construction provides adequate strength and wear resistance for continuous-duty rotating service.

Key Features

• 12mm maximum bore accommodates common metric shaft diameters
• 4mm x 1.8mm keyway provides positive torque transmission without slippage
• Sintered iron construction for durability in continuous rotating service
• 1.08-inch OD and 1.72-inch overall length in a compact form factor
• Rated to 18,000 RPM for high-speed drive applications
• L050 coupling size code for cross-reference and replacement sourcing

Compatibility

Designed as an OEM-style replacement or new-install jaw flexible coupling hub within the L050 coupling size family. Two hubs and one spider element are required to form a complete coupling assembly.

Installation Notes

Installation is typically performed by a qualified millwright or mechanical technician. De-energize and lock out all power to the drive system before removing or installing any coupling component. Verify shaft diameter, keyway dimensions, and coupling size code before pressing the hub onto the shaft. Do not exceed the rated maximum RPM for the assembled coupling, and ensure the mating spider element is inspected or replaced whenever hubs are serviced.