Lovejoy 69790405244 Universal Grid Coupling Spring

Product Description

The LOVEJOY 69790405244 is an alloy steel grid spring designed for use in universal grid-style flexible couplings. The grid spring is the core torque-transmitting element in a grid coupling assembly, fitting into the curved slots of the coupling hubs to absorb shock loads and dampen vibration between connected shafts. This replacement spring corresponds to coupling size code 1020, with a coupling size of 2.25 inches. It is rated for a torque capacity of 422 inch-pounds and a maximum speed of 6000 RPM. Mechanical and maintenance technicians typically install this component during scheduled coupling service or after grid wear is identified during inspection.

This grid spring is suited for industrial drive applications where flexible shaft couplings are used to connect motors, pumps, compressors, gearboxes, and similar rotating equipment. The universal grid coupling design is common in both light industrial and general mechanical power transmission installations. This part fits grid coupling hub size 1020 and is sold as the spring element only, not as a complete coupling assembly. Verify hub size code before ordering to confirm fitment.

Key Features

• Alloy steel construction for strength and durability under cyclic loading
• Coupling size code 1020 with a 2.25-inch coupling size
• Torque capacity of 422 inch-pounds
• Maximum operating speed of 6000 RPM
• Sold as grid spring only — compatible with existing 1020-series hub assemblies
• Quantity of one spring per package

Compatibility

This grid spring fits coupling hub part G2020. It is intended as a replacement spring element for universal grid coupling assemblies using the 1020 size code. Confirm hub part number and size code match before installation.

Installation Notes

Grid coupling springs are installed and serviced by qualified mechanical or millwright technicians. De-energize and lock out all connected drive equipment before removing the coupling cover or grid spring. The grid spring seats into the curved slots of both coupling hubs and should be fully seated and properly lubricated with a compatible coupling grease before the cover is closed. Follow the equipment manufacturer's service documentation for proper grid seating and cover torque procedures.