I have a deep groove ball bearing (NSK make). I wish to introduce artificial faults in the outer race and inner race such that I can study their signal characteristics. I am facing two situations:
EDM is not available at our workshop. Kindly suggest other methods which can be applied (or is generally applied) to create the faults (spall, holes etc.).
Another issue I am facing is regarding the dismantling of the bearing. The bearing has steel riveted cage, so once I dismantle the bearing, the cage gets destroyed and the bearing cannot be reassembled for my analysis. What is the standard procedure adopted by researchers in such situations?
I would suggest you take the bearing to the Leigh Marine Lab, leave it taped to the side in one of the glass seawater tanks (obviously not submerged, but well above the waterline), and wait for nature (and NaCl) to have its way with the surfaces.