Lovejoy 69790405249 Grid Coupling Spring 4.5 in 8000 In-lb

Product Description

The LOVEJOY 69790405249 is a universal grid coupling spring made from alloy steel, designed to serve as the flexible grid element in grid-style mechanical couplings. The grid spring transmits torque between shaft hubs while absorbing shock loads and accommodating minor misalignment. With a torque capacity of 8000 inch-pounds and a maximum speed rating of 5500 RPM, this part is suited for demanding industrial drive applications. Licensed millwrights, mechanical contractors, and industrial maintenance technicians install this component as a direct replacement grid element within a mating coupling housing assembly.

This grid spring is sized for coupling size code 1070, with a coupling size of 4.5 inches. It is used in industrial power transmission systems including conveyors, pumps, compressors, fans, and similar rotating equipment where a grid-style flexible coupling is specified. The grid spring is the wear element of the coupling and is routinely replaced during scheduled preventive maintenance without replacing the entire coupling assembly.

Key Features

• Alloy steel construction for high torque capacity and durability under cyclic loading
• 8000 inch-pound torque capacity handles heavy-duty industrial drive loads
• 5500 RPM maximum speed rating suitable for high-speed rotating equipment
• Coupling size code 1070, 4.5-inch coupling size for precise fitment
• Sold as the grid spring element only — compatible with existing mating hubs and housing
• Single-piece package quantity supports exact replacement without excess inventory

Compatibility

Fits coupling part G2070. Designed as an OEM-style replacement grid spring for size 1070 grid-style coupling assemblies.

Installation Notes

Grid coupling springs are installed by licensed millwrights or qualified mechanical maintenance technicians. Disconnect and lockout-tagout all power to the drive system before disassembling the coupling housing. Remove the coupling cover and lubricant, extract the worn grid spring, and seat the replacement spring into the hub slots per the coupling manufacturer assembly sequence. Reinstall the housing halves and repack with the appropriate coupling grease before returning the drive to service.