Damage Condition

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.

Possible Causes

• Entry of corrosive gas or water
• Improper lubricant
• Formation of water droplets due to condensation of moisture
• High temperature and high humidity while stationary
• Poor rust-preventive treatment during transporting
• Improper storage conditions
• Improper handling

Countermeasures

• Improve the sealing mechanism
• Study the lubrication method
• Anti-rust treatment during periods of non-running
• Improve the storage methods
• Improve the handling method