This is a follow-up to our very popular "Domestic vs. Import Unit Bearings – Bearing Play Comparison" video posted back on October 15, 2009. In that video, we discussed the differences between domestic & import grade unit bearings using Kevin Sacalas’ domestic grade Spidertrax Unit Bearings for our case study.

Since that time, Kevin has now racked on over 2300 miles of extreme desert racing on these same unit bearings with his nearly 5000 lb race vehicle. So how are our unit bearings holding up? Watch the video and see for yourself.