I just finished coating a set of piston skirts, and rod bearings with some cerakote. Then thought what about bearings in turbos? Would it help with thrust bearing life?
Lightly blast the part with 100 grit at 40 psi, then spray it on with a detail gun. The micro slick doesn't need to be baked, but I bake it at 300 for an hour. Anymore than that isn't good for hardened parts.