Most quality Solar fan motors use oil-impregnated bearings, which are usually powder metallurgy products. A large amount of oil should be stored in the linoleum tightly wrapped around the outer circumference of the bearing, so that it gradually penetrates into the oil holes inside the bearing for lubrication.

When the fan is working, the quality Solar fan motor heats up, and the friction between the shaft and the bearing generates heat, which will gradually consume the lubricating oil. If the lubricating oil is not replenished, the fan motor will not be able to maintain normal operation, and the speed will be reduced or even stuck, and the quality Solar fan motor will be burned.

Usually, during the use of the quality Solar fan motor, oil should be injected from the oil filling port every 1-2 months, and sewing machine oil or spindle oil can be used. Grease is used in the reduction box of the electric fan. Generally, it needs to be replaced every 3-4 years. When replacing, the rear cover should be removed first, the balance key should be removed, and then the gear box cover should be removed. Use a small bamboo-like light tool to scrape off the old grease inside, and then wash it with clean gasoline. Clean, and then fill in an appropriate amount of new lubricant.