[BRENT in 10-uh-C]

A FWIW, I have been toying with using a hardened ball to burnish bushings on items like spindles, pedals, and oil pumps. This is a great example where a bushing can be installed and reamed undersized. This will insure both bearings are in exactly the same plane. Then use sized balls to push thru the bushing which first expands it, then it burnishes it. The pressure by which this is done almost polishes the surface finish and makes the bushing extremely hard where longevity is increased.