1. Hot oil cleaning method. Because of the long-term use, the bearing hardened with soft dry oil or anti-rust paste should be immersed in hot engine oil at 100-200℃, clamp the bearing with pliers, and clean the oil stains on the bearing with a brush. The soft dry oil or anti-rust paste will melt when heated to 100-200℃, and it will be easily washed out from the gap of the bearing. 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 the old silo wall vibrator or imported silo wall vibrator, the balls, the bead frame, and the inner ring should be rotated laterally from the outer ring and then immersed in hot oil. The short cylindrical roller bearing is cleaned At the same time, the roller, bead holder, inner ring and outer ring should also be separated. During hot oil cleaning, the temperature of the oil should not exceed 200°C.

2. General cleaning method. Soak the bearing in kerosene for 5-10 minutes, pinch the inner ring with one hand and turn the outer ring with the other. The dry oil or anti-rust paste on the bearing will fall off. Then put the bearing in clean kerosene, scrub with a soft brush, wash the balls and the oil in the gap, put it in gasoline and clean it once, take it out and place 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 bearings mounted on the shaft are cleaned mainly by spraying oil or spraying with an oil gun. The oil that is easy to be cleaned should be kerosene and then gasoline; the oil that is difficult to clean should be rinsed with hot machine oil at 100-200℃. Or spray with oil gun and clean with gasoline. Be careful not to scrape the bearing with sharp tools: hard grease or rust, so as not to damage the smoothness of the bearing rolling elements and groove ring parts, wipe the cleaned silo wall vibrator FAG bearing with a clean cloth.