Lovejoy 68514435458 Flexible Coupling Sleeve Hytrel

Product Description

The LOVEJOY 68514435458 is a one-piece solid flexible coupling sleeve insert molded from Hytrel, a durable thermoplastic elastomer that provides flexibility while transmitting torque between coupled shaft ends. This sleeve fits inside the coupling hubs and serves as the flexible element that absorbs shock, dampens vibration, and accommodates minor misalignment. With a rated torque capacity of 18,000 inch-pounds and a coupling size code of 11, this is a heavy-duty component suited for industrial drive applications. It measures 4 inches in overall length and 8.19 inches in outside diameter, and weighs 3.81 pounds. Mechanical contractors and millwrights are the typical installers.

This sleeve insert is used in jaw-type flexible coupling assemblies found in industrial power transmission systems, including pumps, compressors, conveyors, fans, and similar rotating equipment. The Hytrel material makes it suitable for applications that require resistance to oil, moderate heat, and cyclic loading. It fits coupling size code 11 assemblies. Verify hub bore dimensions and size code before ordering to confirm fitment in the specific drive assembly.

Key Features

• One-piece solid sleeve design eliminates segmented insert failure points
• Hytrel construction resists oil, moderate heat, and cyclic fatigue
• 18,000 inch-pound torque rating for heavy-duty industrial drive service
• 4 inches overall length fits coupling size code 11 hub sets
• 8.19 inches outside diameter for proper hub engagement
• Functions as the flexible element to absorb shock and dampen vibration

Compatibility

Designed as an OEM-style replacement sleeve insert for coupling size code 11 flexible jaw coupling assemblies in industrial power transmission applications.

Installation Notes

Installation is typically performed by a millwright or mechanical technician. Always de-energize and lock out the drive motor and relieve any stored mechanical energy before removing the old sleeve or separating the coupling hubs. Inspect hub jaws for wear or cracking before installing the new sleeve. Confirm that shaft alignment meets the coupling manufacturer's tolerance specifications before returning the drive to service.