Lovejoy 68514449966 Universal Joint Boot 5/8 in Bore

Product Description

The LOVEJOY 68514449966 is a universal joint boot designed to protect U-joint assemblies from contamination, moisture, and debris in mechanical drive systems. With a bore depth of 5/8 inches, a 1/4-inch inside diameter, and a 0.92-inch outside diameter, this boot fits snugly over the joint to maintain lubrication integrity and extend service life. The overall assembled length is 0.96 inches. Rated to handle up to 378 in/lbs of torque, it is suited for moderate-duty shaft coupling applications. Installation is typically performed by mechanical technicians and millwrights servicing power transmission components.

This universal joint boot is used in residential and light commercial mechanical systems where U-joints are exposed to dirt, fluids, or environmental contaminants. Typical applications include HVAC equipment drives, small machinery, and other rotating shaft assemblies that require a protective seal at the joint. Each package contains 2 boots, making it convenient for replacing boots on both ends of a U-joint assembly in a single service call.

Key Features

• Bore depth of 5/8 inches for secure fitment over the joint
• Rated to 378 in/lbs torque for moderate-duty power transmission applications
• 1/4-inch inside diameter by 0.92-inch outside diameter cross-section for precise sealing
• 0.96-inch overall length for compact installation in tight drive assemblies
• Sold in a package of 2, allowing replacement of both joint ends at once

Compatibility

Designed as an OEM-style replacement boot for universal joint assemblies in mechanical power transmission systems requiring a 1/4-inch inside diameter, 0.92-inch outside diameter boot with a 5/8-inch bore depth.

Installation Notes

Universal joint boots are typically installed by mechanical technicians or millwrights during U-joint service or replacement. Shut down and lock out the equipment before beginning any work on rotating shaft components. Ensure the joint is clean and properly lubricated before seating the boot. Inspect the mating shaft and yoke surfaces for burrs or damage that could compromise the boot seal.