Lovejoy 68514436180 Flexible Coupling Hub 2 Inch Bore

Product Description

The LOVEJOY 68514436180 is a flexible coupling hub designed for use in power transmission applications where shaft misalignment compensation and vibration dampening are required. This hub accepts a maximum bore diameter of 2 inches and a keyway measuring 1/2 inch wide by 1/4 inch deep, allowing secure shaft engagement. Constructed from cast iron, it delivers the durability and rigidity expected in industrial and mechanical drive systems. With an overall length of 5.69 inches and an outer diameter of 7-1/2 inches, this hub is sized for medium-to-large coupling assemblies. Licensed mechanical contractors and millwrights typically specify this component in motor-to-pump, HVAC drive, and general industrial drivetrain setups.

This flexible coupling hub is suited for rotating equipment found in commercial HVAC systems, pump drives, compressor assemblies, and general industrial machinery. The cast iron construction performs reliably across a broad range of industrial environments where moderate shock loads and continuous duty cycles are present. It is rated for operation up to 3600 RPM, covering the speed range of most standard electric motors used in trade and industrial applications. When paired with an appropriate spider insert and mating hub, it forms a complete flexible jaw coupling assembly.

Key Features

• Maximum bore diameter of 2 inches accommodates a wide range of shaft sizes
• Keyway dimensions of 1/2 inch wide by 1/4 inch deep for positive shaft drive engagement
• Cast iron construction for durability in industrial drive applications
• 7-1/2 inch outer diameter and 5.69 inch overall length suit medium-to-large coupling assemblies
• Rated to 3600 RPM, compatible with standard single- and three-phase motor speeds
• Coupling Size Code 10S for matching with appropriate mating components

Compatibility

Designed as an OEM-style flexible coupling hub for use in jaw-type flexible coupling assemblies requiring a Size Code 10S hub with a 2 inch maximum bore. Intended for use with compatible mating hubs and spider inserts of the same coupling size designation.

Installation Notes

Installation should be performed by a qualified millwright or mechanical contractor. De-energize and lock out all power to the connected motor and driven equipment before handling the coupling assembly. Ensure shaft and bore surfaces are clean and free of burrs before pressing or sliding the hub into position. Consult applicable machinery safety standards and the equipment manufacturer's documentation for alignment tolerances and shaft fit specifications.