Lovejoy 68514412301 Flexible Hub Coupling 1-7/8 in Bore

Product Description

The LOVEJOY 68514412301 is a flexible hub coupling designed for mechanical power transmission applications requiring vibration dampening and minor shaft misalignment compensation. With a maximum bore diameter of 1-7/8 inches and an outer diameter of 4-1/2 inches, this hub accepts a wide range of shaft sizes in industrial and mechanical drive setups. The overall assembly length measures 4.88 inches. Constructed from sintered iron, the hub offers good wear resistance and dimensional stability under rotational loads. This coupling is rated to a maximum of 5000 RPM. It is installed by mechanical contractors, millwrights, and maintenance technicians in pump, motor, and drive train assemblies.

This flexible hub coupling is suited for use in industrial, commercial, and light mechanical drive systems where shaft coupling with some torsional flexibility is required. Common applications include pump-to-motor connections, compressor drives, and general power transmission setups. The sintered iron construction handles the demands of continuous duty in enclosed drive assemblies. The hub mates with a corresponding spider insert and mating hub to form a complete jaw-style flexible coupling assembly.

Key Features

• Maximum bore diameter of 1-7/8 inches accommodates a wide range of shaft sizes
• 4-1/2 inch outer diameter suits standard jaw coupling flange envelopes
• 4.88 inch overall length provides adequate engagement depth for secure shaft fit
• Sintered iron construction delivers strength and wear resistance in drive applications
• Rated to 5000 RPM for use in moderate- to high-speed mechanical drive systems
• Flexible hub design compensates for minor shaft misalignment and reduces vibration transmission

Compatibility

Designed as an OEM-style replacement or drop-in hub for jaw-style flexible coupling assemblies using the L190 coupling size code. Refer to the manufacturer coupling size chart to confirm spider insert and mating hub compatibility before installation.

Installation Notes

Installation is typically performed by millwrights, mechanical contractors, or qualified maintenance technicians. De-energize and lock out the drive motor before servicing any coupling component, following OSHA lockout/tagout procedures. Ensure shaft and bore alignment meet drive manufacturer tolerances before securing the hub. Do not exceed the rated maximum RPM of 5000 for this hub in service.