Lovejoy 68514436162 Flexible Coupling Hub Cast Iron

Product Description

The LOVEJOY 68514436162 is a cast iron flexible coupling hub designed to transmit torque between shafts while accommodating minor misalignment in mechanical drive systems. With a maximum bore diameter of 1-7/8 inches and a keyway sized at 1/2 inch wide by 1/4 inch deep, this hub accepts a keyed shaft connection for positive drive engagement. The outer diameter measures 6.35 inches and the overall length is 5.06 inches. Rated to 3750 RPM, it suits a wide range of industrial and mechanical applications. Installation is typically performed by millwrights, maintenance mechanics, or power transmission technicians.

This flexible coupling hub is used in industrial machinery, pump drives, compressor drives, conveyor systems, and general power transmission setups where shaft coupling with some degree of misalignment tolerance is required. The cast iron construction makes it appropriate for moderate-duty applications in both commercial and light industrial environments. It is sold individually and is compatible with standard jaw-type flexible coupling assemblies that accept the corresponding coupling element or spider insert.

Key Features

• Maximum bore diameter of 1-7/8 inches for shaft fitment
• Keyway dimensions of 1/2 inch wide by 1/4 inch deep for positive keyed shaft engagement
• 6.35 inch outer diameter and 5.06 inch overall length
• Cast iron construction for durability in moderate-duty mechanical environments
• Rated to 3750 RPM for compatibility with common drive system speeds
• Sold as an individual hub unit, quantity of one per package

Compatibility

Designed as an OEM-style replacement or component hub for jaw-style flexible coupling assemblies requiring a 1-7/8 inch maximum bore and standard keyway dimensions. Verify coupling size code 9S compatibility with the mating hub and spider element before installation.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. De-energize and lock out the drive system fully before removing or installing any coupling component, following LOTO procedures per OSHA and applicable facility standards. Bore and keyway dimensions should be confirmed against the shaft and key stock before pressing or sliding the hub into position. Do not force the hub onto an oversized shaft, as this may crack the cast iron body.