Lovejoy 68514436178 Flexible Coupling Hub 1-7/8in Bore

Product Description

The LOVEJOY 68514436178 is a flexible coupling hub designed for power transmission applications in mechanical and industrial drive systems. Built from cast iron, this hub features a maximum bore diameter of 1-7/8 inches and accepts a keyway measuring 1/2 inch wide by 1/4 inch deep. The overall outside diameter is 7-1/2 inches, with an overall assembly length of 5.69 inches. Rated to 3,600 RPM, it is suited for moderate- to high-speed shaft coupling setups. Coupling Size Code 10S identifies the hub's fitment series for matching spider and jaw components. Installation is typically performed by millwrights, mechanical contractors, or HVAC technicians working on rotating equipment.

This flexible coupling hub is used in commercial and industrial mechanical drive applications where shaft misalignment absorption and vibration dampening are required. It is a common component in pump drives, compressor drives, fan assemblies, and other rotating machinery where two shafts must be joined with some tolerance for angular or parallel misalignment. The cast iron construction makes it appropriate for moderate-load, moderate-speed environments. Technicians select this hub when replacing worn or damaged coupling halves in Coupling Size Code 10S jaw-style flexible coupling assemblies.

Key Features

• Maximum bore diameter of 1-7/8 inches accommodates a wide range of shaft sizes
• Keyway dimensions of 1/2 inch wide by 1/4 inch deep for positive rotational drive engagement
• 7-1/2 inch outside diameter and 5.69 inch overall length for Coupling Size Code 10S assemblies
• Cast iron construction provides durability in moderate-load industrial environments
• Rated to 3,600 RPM for use in standard-speed rotating equipment applications

Compatibility

Designed as an OEM-style replacement flexible coupling hub in Coupling Size Code 10S jaw-style flexible coupling assemblies. Confirm bore diameter, keyway dimensions, and coupling size code against the existing assembly before installation.

Installation Notes

Installation is performed by qualified millwrights or mechanical contractors. Ensure all power to the drive system is locked out and tagged out per OSHA lockout/tagout procedures before removing or installing any coupling component. Verify shaft diameter, keyway dimensions, and coupling size code match prior to pressing or fitting the hub. Do not exceed the rated 3,600 RPM operating speed for this hub.