Bearing maintenance: cleaning steps for motor bearings

The motor should normally be cleaned and lubricated after 2000 hours of operation. Please see the following instructions for the cleaning procedure of the bearing:

First, the warm oil cleaning method is mainly used for bearings with long running time, soft dry oil or rust-proof paste hardening. It should be immersed in warm oil of 100-200 °C, clamp the bearing with pliers, and clean the bearing with a brush. Oil stains. The soft dry oil or rust-proof paste is melted by heating to 100-200 ° C, and is easily washed out from the gap of the bearing. Sometimes it is only necessary to swing the bearing repeatedly in the oil. Oil stains will also flow away from the gap. When cleaning the centripetal spherical bearing of the old motor or the imported motor, the ball, the bead frame and the inner ring should be laterally turned out from the outer ring and then immersed in the warm oil. The short cylindrical roller bearing should also be used for cleaning the roller. , the bead frame, the inner ring and the outer ring are disengaged. When cleaning with warm oil, the temperature of the oil should not exceed 20 °C. If you use indirect heating to increase the temperature, you should pay attention to avoid burning the oil. The bearing should be hung in the oil pan, and the bottom will cause excessive heating and reduce the hardness.

Second, there is a cleaning method to soak the bearing in kerosene for 5-10 minutes, pinch the inner ring with one hand, and rotate the outer ring with the other hand. The dry oil or anti-rust cream on the bearing will fall off. Then put the bearing into the cleaner kerosene, brush it with a soft brush, wash the oil in the ball and the gap, then put it in the gasoline for 1 time, remove it and put it on clean paper. When cleaning the radial spherical ball bearing and the short cylindrical roller bearing, the ball, the bead frame, the inner ring and the outer ring should be disconnected and cleaned. The cleaning of the bearing mounted on the shaft is mainly based on the method of leaching oil or using a grease gun. The oil that is easy to clean is first used with kerosene and then with gasoline; the oil that is difficult to clean is first rinsed with warm oil of 100-200 °C. Or oil guns, then clean with gasoline. Be sure not to use a sharp tool to scrape hard grease or rust on the bearing surface to avoid damaging the brightness of the bearing rolling elements and the groove ring. The cleaned bearings are wiped dry with a clean cloth.

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