lol @ krick
Anyways... I had these beat up rollerblade bearings that I needed to clean up for use in another project. They were filled with dirt, rocks, and heavy grease.
I tried soaking them in wd40... but it didnt do much good.
Then I decided to give this stuff a whirl for the hell of it.
"electronics cleaner" from Radioshack.
The stuff ate the dirt and dissapeared like it was magic! After letting the stuff soak into the bearings, Id wait a little, then spinn them like mad. Repeat... then flip it over and do from the other side.
After the process... they not only looked like new - but they spun faster and longer than when they were new!
I then tried them in trackball bearings - with the same results.
Its expensive, but it dosnt take much, and its well worth it.