592A
Bearing Cup, 6 in. OD
SAF-Holland

This bearing cup provides a precise seating surface for the wheel hub bearings, essential for maintaining proper preload and alignment in the axle assembly. With a 6 inch outer diameter, the component helps establish and stabilize the bearing bore, contributing to smooth rotational movement and reduced wear on associated seals. The clean geometry and finish support consistent lubrication retention and contaminant exclusion, which translates to longer service life and fewer maintenance cycles in demanding heavy-duty service. Properly installed, it aligns with the knuckle and hub interface to minimize runout, ensuring stable tire wear and improved handling in varying load conditions. The part is designed to withstand the rigors of road, dirt, and moisture exposure typical in commercial fleets, while providing a reliable foundation for the wheel assembly. Routine inspection should verify surface integrity and fitment against the mating components, and replacement is recommended when any deformation or wear is observed. For best results, ensure proper torque and alignment during installation and use compatible sealants or lubricants as recommended by the OEM. Source One Parts Center notes this is a standard hub component suitable for many common axle configurations.