Product Description
Cup bearing
Frequently Asked Questions
Q: What is the AC 928857 cup bearing?
A: The AC 928857 is a cup bearing component designed for electric lift truck assemblies. Cup bearings are part of tapered roller bearing sets and provide radial and axial load support in mast and drive assemblies.
Q: What electric lift truck models use the AC 928857?
A: This cup bearing is designed for Allis Chalmers electric lift truck applications. Verify the bearing assembly type and housing bore diameter in your equipment documentation to confirm this is the correct replacement component.
Q: How long does a cup bearing typically last?
A: Cup bearing lifespan depends on load, speed, contamination control, and lubrication. In properly maintained equipment, expect 3000 to 8000 operating hours before wear becomes noticeable. Harsh conditions or inadequate lubrication will reduce bearing life significantly.
Q: What symptoms indicate the AC 928857 needs replacement?
A: Replace the cup bearing if you hear grinding, clicking, or rumbling noises from the mast or wheels, feel excessive play or movement in the bearing assembly, notice metal debris in the grease, or observe heat buildup in the bearing housing.