BEARING DAMAGE ANALYSIS REFERENCE GUIDE
(e.g., 1010 or 1020 grade). Mild steel bars are less likely to cause release of high-speed fragments from the hammer, bar or the part being removed. ... Level 2 – Scoring and Peeling 10 Level 3 – Excessive Roller End Heat 11 Level 4 – Total Bearing Lockup 11 Excessive Preload or Overload 12 Excessive Endplay 13
