• Over / Under lubrication
    • Misalignment
    • Improper fit or mounting that causes vibration, creep / scuffing
    • Shaft burrs
    • Improper bearings selection based on speed , operating temperature or improper seals
    • Debris and dust contamination from the environment or in lubricant
    • Improper grease / lubricant selection
    • Water contamination
    • Improper Mounting
    • Improper handling ( Bearings will show hitting scar, pressing scar and breaking scars if they are used carelessly and struck forcefully )
    • Poor or irregular maintenance