The temperature of the radial bearings in the centrifugal compressor is rising, with periodic peaks
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The temperature rises by a certain amount every few hours before dropping back again, but overall it is on the rise. The oil pressure, flow rate, and temperature are all within the specified ranges. Are there any experts who have encountered this issue?
When there is a chance to shut down the machine, open the bearing shells to check whether the issue is caused by poor return flow of oil to the bearings.