What are the causes of excessive bearing temperature rise?
Time:Aug 15th, 2025
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Bearings, core components of rotating equipment, are most commonly affected by abnormally high temperatures. Here are eight main causes:
1.Excessive vibration: The bearing housing vibrates violently.
2.Poor lubrication: Grease deterioration, contamination, or improper filling.
3.Installation issues: The bearing is installed crookedly or misaligned.
4.Outer ring rotation: The outer ring of the bearing rubs against the housing.
5.Inner ring runout: The inner ring of the bearing slides relative to the shaft.
6.Component damage: Bearing damage or shaft bending.
7.Insufficient cooling: Cooling water flow is insufficient or interrupted.
8.Mechanical friction: The impeller rubs against the housing.
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