Lovejoy 68514410769 Flexible Coupling Hub L090 Sintered Iron

Product Description

The LOVEJOY 68514410769 is a flexible coupling hub in the L090 series, machined from sintered iron for reliable power transmission in industrial and mechanical drive applications. With a minimum bore diameter of 0.25 inches (1/4 inch) and an outside diameter of 2.11 inches, this hub pairs with a matching hub and a separate spider insert to form a complete jaw-style flexible coupling. Overall length is 2.12 inches. The hub is rated at 144 inch-pounds of torque capacity, making it well-suited for light-to-medium duty shaft coupling tasks. Mechanical contractors, millwrights, and maintenance technicians typically install these components on motors, pumps, and rotating equipment.

This hub is used in industrial and commercial mechanical systems where flexible shaft-to-shaft coupling is required. The L090 series is a widely recognized jaw coupling size used across pump, compressor, conveyor, and general power transmission installations. One complete coupling assembly requires two hubs and one spider insert, which must be ordered separately. This part covers the hub only and is sold individually.

Key Features

• Sintered iron construction for strength and dimensional consistency
• L090 series jaw coupling hub with 0.25 inch minimum bore diameter
• 2.11 inch outside diameter fits standard L090 coupling envelopes
• 144 inch-pounds torque rating for light-to-medium duty drive applications
• 2.12 inch overall length for compact shaft coupling installations
• Sold as a single hub — order two hubs and one spider for a complete coupling assembly

Compatibility

Designed as an OEM-style replacement or new-installation hub for L090 series jaw-style flexible couplings. One complete coupling requires two hubs and one compatible L090 spider insert, ordered separately.

Installation Notes

Installation is typically performed by a millwright or qualified mechanical technician. Disconnect and lock out all power to the driven equipment before beginning shaft coupling work. 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 without the spider insert properly seated between both hubs.