What cause high temperature on the steam turbine thrust bearing?
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High temperature in a steam turbine thrust bearing usually indicates deeper mechanical issues. Common causes include:
• Shaft misalignment, which increases friction
• Inadequate lubrication (low oil pressure, contamination, wrong oil grade)
• Excessive axial load on the bearing
• Improper axial clearance, leading to metal contact
• Blocked oil passages reducing cooling
• Nearby heat sources or steam leaks affecting the area
At NCON Turbines, one of the experienced steam turbine manufacturers in India , we always recommend regular monitoring of bearing temperature and oil quality to avoid serious failures.