Lovejoy 68514441322 Flexible Coupling Hub 16mm Bore

Product Description

The LOVEJOY 68514441322 is a flexible coupling hub designed for power transmission applications in industrial and mechanical drive systems. This hub accepts a maximum bore of 16mm and features a 5mm wide by 2.3mm deep keyway for secure shaft engagement. The outer diameter measures 1.75 inches and the overall length is 2.12 inches. Constructed from sintered iron, the hub offers reliable strength and wear resistance. A complete coupling assembly requires two hubs and one spider insert, which must be ordered separately. This part is installed by millwrights, mechanical technicians, and maintenance professionals working on motor-to-load shaft couplings.

This flexible coupling hub is suited for use in light-to-medium duty industrial drive applications including pump drives, compressor connections, conveyor systems, and general shaft coupling installations. The L075 coupling size code identifies this hub within the standard jaw-type flexible coupling series. With a maximum rated speed of 10,000 RPM, the hub handles a broad range of rotational speeds common in commercial and industrial equipment. It is intended for use where vibration dampening and slight shaft misalignment tolerance are required at the coupling joint.

Key Features

• 16mm maximum bore accommodates a wide range of shaft sizes
• 5mm x 2.3mm keyway provides positive shaft-to-hub torque transfer
• Sintered iron construction for durability in mechanical drive environments
• Rated to 10,000 RPM maximum for high-speed applications
• Compact 1.75 inch OD and 2.12 inch overall length suits space-constrained installations
• Sold individually — two hubs plus one spider required for a complete coupling assembly

Compatibility

This hub corresponds to coupling size code L075 within the standard jaw-type flexible coupling series. Two hubs of the same size code and one elastomeric spider element are required to complete the coupling assembly. Compatible spider elements must be selected separately to match the L075 size designation.

Installation Notes

Installation of flexible coupling hubs is typically performed by qualified millwrights or mechanical maintenance technicians. Before beginning, de-energize the connected motor and lock out the power source per OSHA lockout/tagout procedures. Ensure shaft and bore surfaces are clean and free of burrs before pressing or sliding the hub onto the shaft. Do not use the coupling to correct excessive shaft misalignment beyond the published tolerance for the spider element selected.