According to the use time, the motor should be cleaned and refueled after 2000 hours of use. There are two cleaning methods for SKF imported bearings:

1. Hot oil cleaning method. Because of the long-term use, SKF only imported bearings hardened by soft dry oil or anti-rust paste should be immersed in 100-200℃ hot engine oil, clamp the SKF bearing with pliers, and clean SKF with a brush Oil stains on the bearings. The soft dry oil or anti-rust paste will melt when heated to 100-200℃, and it will be easily washed out from the gaps of SKF bearings. Sometimes it is only necessary to shake the bearing several times in the oil. The oil will also flow away from the crevices.

When cleaning the centripetal spherical bearing of an old motor or an imported motor, the balls, the ball frame, and the inner ring should be rotated laterally from the outer ring and then immersed in hot oil. The rollers should also be cleaned when cleaning short cylindrical roller bearings. , Bead frame, inner ring and outer ring are separated.

During hot oil cleaning, the temperature of the oil should not exceed 20°C. If using an open flame to heat directly, care should be taken to prevent the oil from being burned. The SKF bearing should be suspended in the oil pan. The sinking of the bottom will cause overheating and reduce the hardness.

2. General cleaning method Put the SKF bearing in kerosene for 5-10 minutes, pinch the inner ring with one hand and turn the outer ring with the other hand, the dry oil or anti-rust paste on the SKF bearing will fall off. Then put the SKF bearing in clean kerosene, scrub with a soft brush, wash the balls and the oil in the gap, and then put it in gasoline to clean it once, take it out and put it on a clean paper. When cleaning radial spherical ball bearings and short cylindrical roller bearings, the balls, the ball frame, the inner ring and the outer ring should be separated for cleaning.

The SKF bearing installed on the shaft is cleaned mainly by spraying oil or spraying with a grease gun. The oil that is easy to clean is first used kerosene and then gasoline; the oil that is difficult to be cleaned should be sprayed with hot engine oil at 100-200℃. Wash or spray with oil gun, and then clean with gasoline. Be careful not to scrape the SKF imported bearings with sharp tools: hard grease or rust, so as not to damage the smoothness of the rolling elements and groove rings of SKF bearings, wipe the cleaned SKF bearings with a clean cloth.