Boston Gear 18860 Thrust Bearing Washer 3/4 in Id Steel

Product Description

The BOSTON GEAR 18860 is a steel washer-style thrust bearing designed to handle axial loads in rotating shaft assemblies. With a 0.75-inch bore, a 1.625-inch outside diameter, and a 0.125-inch thickness, this compact bearing fits into tight axial-space applications where a thin, flat thrust element is required. It is installed between rotating and stationary components to manage thrust forces along the shaft axis. Maintenance technicians, millwrights, and mechanical assemblers working on gearboxes, conveyor drives, and general power transmission equipment are the typical installers.

This thrust bearing washer suits light- to medium-duty axial load applications in industrial and commercial machinery. It is appropriate for use in gearboxes, gear reducers, and shaft assemblies where a low-profile thrust element is needed to prevent axial movement and distribute load. The washer style is a common OEM and aftermarket format in power transmission builds and maintenance repairs.

Key Features

• Washer style profile at 0.125 inches thick for space-constrained axial positions
• 0.75-inch inside diameter bore fits standard 3/4-inch shafts
• 1.625-inch outside diameter provides adequate thrust load surface area
• Steel construction offers durability in industrial operating environments
• Compact and lightweight at 0.1 pounds for easy handling during assembly

Compatibility

Designed as an OEM-style replacement or service thrust washer for rotating shaft assemblies requiring a 0.75-inch bore, 1.625-inch outside diameter, and 0.125-inch thick washer-style thrust bearing in steel.

Installation Notes

This part is typically installed by millwrights or mechanical technicians during gearbox assembly or shaft maintenance. De-energize all equipment and lock out or tag out power sources before disassembling any drive or bearing housing. Ensure shaft and housing surfaces are clean and free of burrs before seating the thrust washer. Consult the equipment manufacturer's service documentation for proper stack-up order and preload requirements.