Lovejoy 68514436088 Flexible Coupling Hub Cast Iron

Product Description

The LOVEJOY 68514436088 is a flexible coupling hub designed for power transmission applications in industrial and mechanical drive systems. Machined from cast iron, this hub accepts a maximum bore diameter of 1-3/8 inches and features a 5/16 inches by 5/32 inches keyway width and depth for positive shaft engagement. The hub measures 4 inches in outer diameter and 3-1/2 inches overall length. It carries a size code of 6J and is rated to a maximum of 6000 RPM. Licensed mechanics and industrial maintenance technicians typically install this component when coupling motors, pumps, compressors, or gear reducers.

This flexible coupling hub is suited for light to medium-duty industrial drive applications including HVAC equipment drives, pump assemblies, and general power transmission setups. It is used where shaft misalignment compensation and vibration dampening are required at the coupling joint. The cast iron construction makes it appropriate for indoor mechanical rooms and enclosed equipment installations where corrosive exposure is minimal.

Key Features

• Maximum bore diameter of 1-3/8 inches accommodates a range of shaft sizes
• 5/16 inches by 5/32 inches keyway provides positive rotational drive engagement
• 4 inches outer diameter and 3-1/2 inches overall length in a compact profile
• Cast iron construction for rigidity and dimensional stability in drive applications
• Rated to 6000 RPM for compatibility with standard motor and pump speeds
• Coupling size code 6J for straightforward replacement and cross-reference

Compatibility

Designed as an OEM-style replacement flexible coupling hub for industrial and mechanical drive systems requiring a 6J-size coupling with a maximum 1-3/8 inch bore and standard keyway dimensions.

Installation Notes

Installation should be performed by a qualified mechanic or industrial maintenance technician. Disconnect and lock out all power to the drive system before removing or installing any coupling component. Ensure shaft and bore dimensions are verified before pressing or fitting the hub onto the shaft. Do not force the hub onto an oversized shaft, as this may compromise the bore or keyway integrity.