How to clean imported bearings? Bearings hardened with soft thin oil or anti-rust treatment paste should be immersed in hot motor oil at 100-200 ℃, pinch the bearing with needle-nose pliers, and use a brush to clean the oil stains on the bearing. Soft thin oil or anti-rust treatment paste is heated to 100-200 ℃ to melt, and it is very easy to flush out the system leaks of the bearing. If you accidentally shake the bearing in the oil several times. The oil stains will also flow away from the leaks in the system (the roller bearing, bead frame, inner ring and second ring should also be loosened during washing) Put the bearing in the lighter oil to soak for 5-10 minutes, and pinch the inner ring tightly with one hand , the other hand rotates the second ring, the thin oil or anti-rust treatment paste on the bearing will flow out. Then put the bearing in a cleaner lighter oil, clean it with a gold jewelry brush, clean the steel balls and oil stains in the system loopholes, and then put it in the car gasoline to wash it once, remove it and put it on a clean paper. When cleaning the radial curved ball bearing and short cylindrical roller bearing, loosen the steel ball, the ball carrier, the inner ring and the second ring.