Lovejoy 68514441335 Flexible Coupling Hub 38mm Bore

Product Description

The LOVEJOY 68514441335 is a flexible coupling hub designed for use in mechanical power transmission applications where shaft-to-shaft alignment flexibility and vibration dampening are required. This hub features a 38mm maximum bore with a 10mm wide by 3.3mm deep keyway for secure shaft engagement. The hub measures 3.31 inches in outer diameter and 4.25 inches in overall length, and is constructed from sintered iron for durability under rotational load. Rated to 5,000 RPM, this hub is a component part — two hubs and one spider element are required to form a complete flexible coupling assembly.

This coupling hub is suited for industrial and commercial mechanical drive systems, including pump drives, compressor shafts, conveyor systems, and general power transmission equipment. It is installed by mechanical contractors, millwrights, and industrial maintenance technicians wherever a jaw-style flexible coupling is needed to connect two shaft ends while accommodating minor misalignment and absorbing torsional shock loads.

Key Features

• 38mm maximum bore with 10mm x 3.3mm keyway for positive shaft engagement
• 3.31 inches outer diameter and 4.25 inches overall length
• Sintered iron construction for strength and wear resistance
• Rated to 5,000 RPM maximum operating speed
• Coupling Size Code L110 for standard jaw coupling spider compatibility
• Sold individually — two hubs plus one spider required for a complete coupling

Compatibility

Designed as a component of the LOVEJOY L-series jaw flexible coupling system, Size Code L110. Two hubs and one spider are required for a complete coupling assembly. Specific spider element compatibility should be verified against the L110 coupling size designation.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. De-energize and lock out the drive equipment before mounting the hub onto the shaft. Ensure the shaft is clean and within the specified bore tolerance before pressing or sliding the hub into position and securing via the keyway. Consult the equipment manufacturer specifications and applicable ANSI or OSHA lockout/tagout procedures before beginning work.