Motor bearing fault repair method - Solutions - Huaqiang Electronic Network

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The shaft is rotated by the bearing support, which is the heaviest part of the load and is a component that is easy to wear.

(1) Fault check

In-service inspection: When the rolling bearing has less oil, it will emit an abnormal sound. A slight regular "card, card" sound may be a broken ball. If there is debris such as sand in the bearing, noise will appear.

Check after disassembly: check the bearing for signs of wear, then pinch the inner ring of the bearing and lay the bearing flat. The other hand pushes the outer steel ring hard. If the bearing is good, the outer steel ring should rotate smoothly and rotate. There is no vibration and obvious stuck phenomenon, such as the phenomenon that the bearing does not reverse after the bearing stops, indicating that the bearing has been scrapped and needs to be replaced in time. The left hand is stuck on the outer ring, the right hand pinches the inner steel ring, and then the bearing is axially pushed. There is looseness or swaying phenomenon, which is serious wear.

(2) Troubleshooting

The rust spots on the bearing surface are sanded with an abrasive cloth and then cleaned with gasoline: or when the bearing is cracked or excessive wear occurs, it should be replaced in time. When replacing a new bearing, make sure that the new bearing model meets the requirements.