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The customer was experiencing problems with mounted bearings (Self-Lube®) on a fan application. Bearings were running hot due to their location above an oven. Regular changes were needed once a month.
The application was investigated by NSK engineering and the ambient temperature was discovered to be within the tolerences of the HLT (approximately 120ºC). HLT Self-Lube® bearings were fitted together with NSK recommendations for relubrication intervals with the correct specification grease. Bearing performance significantly improved and unplanned failures were eliminated.