Services - Troubleshooting - Damage by Type - Fretting occurs at fitting surface and also at contact area between raceway ring and rolling elements. Fretting corrosion is another term used to describe the reddish brown or black worn particles.
Services - Troubleshooting - Damage by Location: When analysing a bearing during periodic inspection of equipment, operating inspections, or replacement of adjacent parts, the condition of the bearing should be determined.
Services - Troubleshooting - Damage by Type - Seizure: When sudden overheating occurs during rotation, the bearing becomes discolored. Then, the raceway rings, rolling elements and cage will soften, melt and deform as damage accumulates.
Services - Troubleshooting - Damage by Type: Bearing rust and corrosion are pits on the surface of rings and rolling elements and may occur at the rolling element pitch on the rings or over the entire bearing surfaces.
Services - Troubleshooting - Damage by Type: Creep is the phenomenon in bearings where relative slippage occurs between fitting surfaces and thereby creates a clearance between them surface. Creep causes a shiny appearance with Scoring or Wear.
Services - Troubleshooting - Damage by Type - Discoloration of cages, rolling elements and raceway rings occurs due to their reacting with lubricant at high temperature.
Services - Troubleshooting - Damage by Type - Mounting Flaws: Straight line scratches on surface of raceways or rolling elements caused during mounting or dismounting of bearing.
Services Troubleshooting - Damage by Type - Electrical Corrosion: 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.
