Catastrophic Bearing Failure

An Aluminum Foil manufacturer experienced catastrophic bearing failure on a combustion air furnace fan. When the bearings failed, the fan wheel made contact with the fan housing. The combustion air fan provides air to the furnace gas burners. The furnace heats the aluminum foil rolls to burn off the oil used to manufacture aluminum rolls when the aluminum passes through mills and separators. Horner Fan received the damaged fan. The incoming inspection revealed the fan hub was cracked and along with the fan wheel damage – bent/cracked blades and ripped off back plate, Horner Fan recommended to manufacture a replacement. The [...]

Catastrophic Bearing Failure2022-01-28T15:18:37-05:00

A Fan That Cannot Be Balanced

A power plant kept getting above normal levels of unbalance on a 5000 horsepower 720 RPM fan. They had made several attempts trying to balance the fan, all of which failed. It was then that they made the decision to call in Nelson Baxter who is the manager of Horner’s EMDS Division. Equipment: A 5000 HP 720 RPM fan at a Power Plant. Symptoms: Above normal levels of unbalance that resisted balance efforts. Several attempts were made to balance the fan, all of which were unsuccessful. Test Results: After attempting several balance shots in an I.D. fan, the casing vibration levels [...]

A Fan That Cannot Be Balanced2021-01-08T23:18:48-05:00

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