Product Description
Cup, bearing
Frequently Asked Questions
Q: Must the bearing cup 00591-03086-81 be replaced with a matching cone?
A: Yes. The bearing cup must always be replaced as a matched set with the bearing cone (00591-03085-81). These components are precision-manufactured together and are not interchangeable with other bearing sets. Always order both parts.
Q: What is the material composition of the bearing cup?
A: The cup is constructed from high-carbon chromium steel with a hardened inner raceway. This material provides wear resistance and load capacity for manual pallet jack wheel assemblies operating in standard to heavy warehouse environments.
Q: How is the bearing cup installed in the wheel housing?
A: The cup is pressed into the load wheel or wheel housing bore. Use a bearing cup tool or hydraulic press to install straight and true. Improper installation causes misalignment, noise, and premature bearing failure. If you lack proper tools, contact our technical team for installation assistance.
Q: What is the typical service life of this bearing cup?
A: Under normal warehouse operating conditions with proper lubrication and maintenance, the bearing cup provides 3 to 5 years of service. Life is reduced in cold storage, wet environments, or high-use applications. Inspect annually and replace if pitting or corrosion appears.
Q: How do I inspect the bearing cup for wear?
A: Remove the load wheel and cup from the housing. Examine the inner raceway under good light for pitting, spalling, or corrosion. Feel for roughness or grinding when rolling the raceway by hand. Any damage requires replacement of both cup and cone.