Lovejoy 68514412290 Flexible Hub Coupling 1-1/8 in Bore

Product Description

The LOVEJOY 68514412290 is a flexible hub coupling designed to connect shafts in mechanical power transmission applications. With a maximum bore diameter of 1-1/8 inches and an outer diameter of 4-1/2 inches, this coupling accommodates moderate-to-large shaft assemblies where misalignment damping and vibration absorption are required. The sintered iron construction provides solid load-bearing capacity in demanding service environments. At an overall length of 4.88 inches and a rated maximum speed of 5,000 RPM, this hub is suited for industrial motors, pumps, compressors, and HVAC equipment drives where reliable torque transfer is critical. Installers and maintenance technicians working on mechanical drive trains will find this a direct-fit hub component.

This flexible hub coupling is used in industrial and commercial mechanical drive applications where rotational power must be transferred between two shafts with some tolerance for angular, parallel, or axial misalignment. Typical installations include motor-to-pump couplings, blower drive assemblies, and compressor connections in both HVAC mechanical rooms and general industrial settings. The hub pairs with a matching spider insert and mating hub to form a complete jaw-style flexible coupling assembly.

Key Features

• Maximum bore diameter of 1-1/8 inches accommodates a range of shaft sizes
• 4-1/2 inch outer diameter suits medium-to-large drive assemblies
• 4.88 inch overall length provides adequate engagement depth for secure shaft coupling
• Sintered iron construction offers durability under continuous rotational load
• Rated to 5,000 RPM for use with standard industrial and HVAC drive motors
• Size code L190 for straightforward cross-reference and replacement sourcing

Compatibility

Designed as an OEM-style replacement or aftermarket flexible hub coupling for mechanical drive assemblies requiring a maximum bore of 1-1/8 inches and size code L190 jaw-style coupling hubs.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with mechanical power transmission components. Disconnect and lock out all power to the drive system before removing or installing coupling components. Ensure the bore, keyway, and set screw are properly aligned and secured before returning the drive to service. Consult applicable equipment service documentation and relevant ANSI or OSHA standards for shaft coupling installation requirements.