Boston Gear 18870 Thrust Bearing Washer Steel 7/8 Id 2 Od

Product Description

The BOSTON GEAR 18870 is a steel washer-style thrust bearing designed to manage axial loads in rotating shaft assemblies. With a 7/8 inch bore, 2 inch outside diameter, and 1/8 inch thickness, this bearing fits compact spaces while providing reliable load-carrying surface between mating components. The flat washer configuration allows it to seat cleanly against thrust shoulders on shafts or housings. At 0.2 pounds, it is lightweight and straightforward to handle during assembly. Machinists, millwrights, and mechanical contractors working on gearboxes, conveyors, pumps, and similar rotating equipment will find this a direct-fit thrust element for axial load management.

This thrust bearing washer is suited for industrial and commercial mechanical assemblies where axial thrust must be absorbed between a rotating shaft and a stationary housing or collar. Typical applications include light-duty gearbox assemblies, pump shafts, conveyor drive components, and general power transmission equipment. The steel construction handles moderate axial loads in both wet and dry environments. It is sold individually and installs as a single washer element within a thrust bearing stack or as a standalone thrust surface.

Key Features

• Washer-style thrust bearing handles axial loads in rotating shaft assemblies
• Steel construction provides durability in industrial mechanical applications
• 7/8 inch bore fits standard fractional shaft sizes
• 2 inch outside diameter fits common housing and collar counterbores
• 1/8 inch thickness allows use in tight axial clearance spaces
• Lightweight at 0.2 pounds for easy handling during assembly

Compatibility

Designed as an OEM-style replacement or service component for light-duty thrust bearing applications in rotating shaft assemblies requiring a 7/8 inch bore, 2 inch outside diameter, washer-style thrust element.

Installation Notes

Installation is typically performed by a millwright, mechanical technician, or qualified maintenance professional. De-energize all power to the equipment and relieve any stored mechanical energy before disassembling the shaft assembly. Ensure mating thrust surfaces are clean and free of burrs before seating the washer. Consult equipment OEM documentation for correct orientation and preload requirements specific to the assembly.