Overview
The SKF BR28521 is a tapered roller bearing race (cup/outer ring) engineered for axle and differential service. With an outside diameter of 92.075 mm and a total width of 19.845 mm, it uses a tapered geometry to spread radial and axial loads across a wide contact area for durability. SKF incorporates a logarithmic raceway profile and ultra-smooth surface finish to promote low friction and quiet operation. The cup is heat-treated to OEM specifications and includes corrosion-prevention measures with reduced wear activator technology to help resist premature wear in demanding duty cycles.

Fit and compatibility
As a front outer axle shaft bearing component in many applications, BR28521 is dimensionally precise for drop-in replacement where specified. It meets OEM tolerances for consistent fit and reliable preload, supporting long service life when paired with the correct cone. The part crosses directly to Timken 28521 and FAG US 501099 and is used across various makes including Chevrolet, Ford, Dodge, GMC, and International. SKF’s manufacturing quality and surface finish control make this cup a dependable choice for fleets and rebuilders seeking consistent performance in hub, differential, and axle bearing positions.