Lovejoy 69790405237 Flexible Coupling Hub 3.5 in Alloy Steel

Product Description

The LOVEJOY 69790405237 is an alloy steel flexible coupling hub designed for use in grid-style flexible coupling assemblies. With an outside diameter of 3.5 inches and a coupling size code of 1080, this hub is a core component in transmitting torque between shafts while accommodating minor misalignment and dampening shock loads. One hub alone does not form a complete coupling. A full assembly requires two hubs, one grid, and one cover, which must be ordered separately. Licensed mechanical contractors and millwrights typically install these in industrial drive train applications where reliable, serviceable power transmission is required.

This hub is suited for industrial power transmission systems where grid-type flexible couplings are specified. Grid couplings are common in pump drives, compressor drives, conveyor systems, and similar rotating equipment found in commercial and industrial facilities. The 1080 size designation aligns with standard grid coupling series sizing, making sourcing of the mating grid and cover straightforward. The alloy steel construction handles the torsional and radial load demands typical of industrial machinery.

Key Features

• Alloy steel construction for high torsional strength and durability in demanding drive applications
• 3.5 inch outside diameter suits mid-range industrial coupling requirements
• Coupling size code 1080 for straightforward matching with compatible grids and covers
• Grid-style coupling hub design provides inherent shock load absorption and misalignment tolerance
• Sold individually — order two hubs, one grid, and one cover to complete the coupling assembly

Compatibility

Designed for use in LOVEJOY size 1080 grid-style flexible coupling assemblies. A complete coupling requires two hubs, one grid, and one cover ordered separately. Verify size code and bore requirements before ordering.

Installation Notes

Installation of grid-style flexible couplings is typically performed by licensed millwrights or mechanical contractors. Disconnect and lock out all power to the drive system before beginning installation or service. Hubs must be properly bored and keyed to the shaft to the required fit before assembly. Follow applicable ANSI and manufacturer coupling installation guidelines for hub mounting, grid installation, and cover torque.