Ameryka Płn. i Pd.
ASEAN i Oceania
When electric current passes through a bearing, arcing and burning occur through the thin oil film at points of contact between the raceway and rolling elements. >>
Flaking occurs when small pieces of bearing material are split off from the smooth surface of the raceway or rolling elements due to rolling fatigue, thereby creating regions having rough and coarse texture. >>
Pitting has a dull luster and appears on the rolling element surface or raceway surface. >>