Lovejoy 68514436142 Flexible Coupling Hub 1.5 in Bore

Product Description

The LOVEJOY 68514436142 is a flexible coupling hub designed for power transmission applications in industrial and mechanical drive systems. With a maximum bore diameter of 1.5 inches and a keyway measuring 3/8 inches wide by 3/16 inches deep, this hub accommodates keyed shaft connections with a secure, positive fit. Cast iron construction provides durability under the rotational stress typical of pump, blower, and motor drive assemblies. The hub has an outer diameter of 5.45 inches and an overall length of 4.44 inches, making it suitable for mid-range torque coupling setups. Licensed mechanics and millwrights install these components as part of flexible jaw or spider coupling assemblies.

This flexible coupling hub is used in industrial machinery, HVAC equipment, pump drives, and motor-to-load connections where shaft misalignment compensation is required. The coupling size code is 8S, indicating its fit within the standard Lovejoy sizing series. It is appropriate for both new installations and replacement applications in light-to-medium industrial environments where cast iron construction meets the load and environmental requirements of the system.

Key Features

• 1.5 inch maximum bore diameter for compatibility with common shaft sizes
• 3/8 inch by 3/16 inch keyway for positive keyed shaft engagement
• 5.45 inch outer diameter with 4.44 inch overall length
• Cast iron construction for strength and wear resistance in rotating drive applications
• Rated up to 4,500 RPM for use in higher-speed drive configurations
• Coupling size code 8S within the standard flexible coupling series

Compatibility

Designed for use in flexible coupling assemblies corresponding to coupling size code 8S. Consult the Lovejoy coupling series documentation to confirm spider element and mating hub compatibility for your specific application.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. De-energize and lock out the drive motor and relieve any stored mechanical energy before beginning work. Ensure shaft and bore surfaces are clean and free of burrs before pressing or fitting the hub onto the shaft. Torque any set screws or fasteners to the values specified in the coupling manufacturer documentation, not to generic values.