Lovejoy 69790405231 Flexible Coupling Hub Alloy Steel

Product Description

The LOVEJOY 69790405231 is a Series 1020 flexible coupling hub machined from alloy steel. It accepts bore diameters from 0.5 inches minimum up to 1.125 inches maximum, with an outside diameter of 1.88 inches. The hub is one component of a complete grid-style flexible coupling assembly. To build a complete coupling, two hubs, one grid, and one cover must be ordered separately. With a rated torque capacity of 460 inch-pounds, this hub is suited for power transmission applications where shaft misalignment compensation and vibration dampening are required. Installation is performed by mechanical technicians and millwrights in industrial and commercial drive train applications.

This coupling hub fits into Series 1020 grid coupling assemblies used in rotating equipment such as pumps, compressors, conveyors, and fans. It is appropriate for both new installations and replacement service on existing grid coupling setups. The alloy steel construction handles moderate torque loads in industrial environments. Applications typically involve close-coupled horizontal or vertical shaft arrangements where controlled flexibility between driver and driven equipment is necessary to protect bearings and reduce shock loading.

Key Features

• Alloy steel construction for strength and durability in industrial drive applications
• Bore range of 0.5 inches to 1.125 inches accommodates a variety of shaft sizes
• 1.88 inches outside diameter, Series 1020 designation
• Rated torque capacity of 460 inch-pounds
• Sold individually — two hubs, one grid, and one cover required for a complete coupling assembly

Compatibility

Designed for use in LOVEJOY Series 1020 grid-style flexible coupling assemblies. A complete coupling requires two Series 1020 hubs, one mating grid, and one cover, all ordered separately.

Installation Notes

Installation is typically performed by a qualified millwright or mechanical technician. De-energize and lock out all rotating equipment before beginning shaft or coupling work, following applicable LOTO procedures. Ensure shaft and bore dimensions are confirmed before pressing or keying the hub to the shaft. Do not exceed the rated torque capacity of the assembly during commissioning or operation.