Thrust Bearing

Frequently Asked Questions

Q: What is the purpose of the HY 4095578 thrust bearing in a pallet jack or lift truck?
A: The thrust bearing is a precision component that handles axial (end-to-end) loads on a rotating shaft, such as a steer wheel axle or drive wheel axle. It prevents side-to-side movement of the shaft and ensures smooth rotation under load.

Q: Which Hyster equipment models use the HY 4095578 thrust bearing?
A: The HY 4095578 is designed for specific Hyster pallet jack and lift truck models equipped with sealed bearing assemblies. Check your equipment serial number and parts manual to confirm this thrust bearing is the correct replacement for your steering or drive axle assembly.

Q: What are the dimensions and load rating of the HY 4095578 thrust bearing?
A: This thrust bearing has specific bore diameter, outer diameter, width, and axial load capacity ratings. These dimensions must match the axle shaft diameter and mounting pocket in your equipment. Verify part number and dimensions against your equipment documentation before ordering.

Q: What symptoms indicate the HY 4095578 thrust bearing is failing?
A: Signs of thrust bearing failure include excessive axial play in the wheel (shaft moves side-to-side), grinding or squealing sounds during rotation, rough spinning motion, or visible looseness in the bearing cartridge. A failing thrust bearing must be replaced to prevent damage to the axle assembly.

Q: How long does the HY 4095578 thrust bearing last under normal use?
A: Under typical warehouse conditions with proper lubrication, a thrust bearing lasts 5-8 years. Frequent steering inputs, inadequate greasing, or operation in wet or corrosive environments accelerates wear. Routine bearing inspection and timely replacement prevent catastrophic axle failure.