Case Hardened vs. Through Hardened Bearings

This video explains the difference between case hardening and through hardening, and why the hardening process used in manufacturing wheel bearings is critical to the lifespan of the bearing. Case hardened (or case carburized) bearings are superior for heavy duty wheel-end bearings, which is why all of our Bower Heavy Duty Bearings by NTN are case hardened.
Learn More at: PowerofBower.com