Lovejoy 68514451231 Flexible Coupling Hub L090 Sintered Iron

Product Description

The LOVEJOY 68514451231 is a flexible coupling hub machined from sintered iron, designed for use in jaw-type flexible coupling assemblies. Part of the L090 series, this hub accepts a minimum bore diameter of 0.25 inches and a maximum bore diameter of approximately 0.55 inches (14.00 mm), with an outside diameter of 2.11 inches and an overall length of 2.12 inches. It is rated for up to 144 inch-pounds (16.30 N/m) of torque. Licensed HVAC, mechanical, and industrial service technicians regularly install these hubs in pump, fan, and motor drive applications where vibration dampening and misalignment tolerance are required.

This hub is intended for use in flexible jaw coupling assemblies in light-to-medium industrial and mechanical systems. A complete coupling requires two hubs and one spider insert, ordered separately. Typical applications include pump-to-motor connections, blower drive shafts, and similar rotating equipment found in HVAC mechanical rooms, plumbing pump systems, and general industrial machinery. The L090 series designation ensures compatibility with other L090-rated components from the same coupling family.

Key Features

• Sintered iron construction for durability in rotating drive applications
• L090 series coupling size code for straightforward replacement sourcing
• Rated to 144 inch-pounds of torque for light-to-medium duty loads
• Minimum bore of 0.25 inches with maximum bore capacity up to 14.00 mm
• Outside diameter of 2.11 inches and overall length of 2.12 inches for compact fitment
• Sold individually — two hubs plus one spider required for a complete coupling assembly

Compatibility

Designed as a direct L090 series jaw coupling hub. A complete coupling assembly requires two hubs (this part) and one L090 spider insert, ordered separately. Confirm bore diameter requirements before ordering.

Installation Notes

Installation should be performed by a qualified mechanical or HVAC technician. Disconnect and lock out all power to the drive system before removing or installing coupling components. Ensure shaft and bore tolerances are verified prior to assembly. Follow applicable ANSI and local mechanical codes for coupling installation in rotating equipment.