cam bearings?

possibly i over reacted about sanding bearings , but i think not!  a bearing
is a precision cast and then machined surface.   raised surfaces and scored
groves or not, you can not sand a bearing surface and restore any type of
precision surface as designed.  it would cost next to nothing while apart to
replace the scored bearing.  even if it were a "last known example on earth"
there are companys out there who repour babbit and remachine bearing shells
to specific tolerances.

chuck.