1. Hot oil cleaning method

Mainly used for motor bearings hardened by soft dry oil or anti-rust paste, should be immersed in hot oil at 100-200 ℃, clamp the motor bearings with pliers, and use a brush to clean the oil stains on the motor bearings. Soft dry oil or anti-rust paste is heated to 100-200 ℃ to melt, and it is easy to wash out from the gap of the motor bearing. Sometimes as long as the motor bearing is shaken many times in the oil, the oil will flow away from the gap.

It is suggested that when cleaning the radial spherical motor bearing of the motor, the user should turn the ball, the ball carrier and the inner ring out of the outer ring laterally and then immerse them in hot oil. When cleaning the bearing of the short cylindrical roller motor, the roller should also be , the bead holder, the inner ring and the outer ring are disengaged. During hot oil cleaning, the temperature of the oil should not exceed 200°C. When heating directly with an open flame, care should be taken to prevent the oil from burning. The motor bearing should be suspended in the oil pan and sinking to the bottom will cause overheating and reduce the hardness.

2. General cleaning method

Soak the motor bearing in kerosene for 5-10 minutes, hold the inner ring with one hand and turn the outer ring with the other hand, the dry oil or anti-rust paste on the motor bearing will fall off. Then put the motor bearing into relatively clean kerosene, brush with a soft brush, clean the oil stains in the ball and the gap, and then put it in the gasoline to clean it once, take it out and put it on a clean paper. When cleaning the radial spherical ball motor bearing and the short cylindrical roller motor bearing, the balls, the ball carrier, the inner ring and the outer ring should be separated and cleaned.

The cleaning of the motor bearing mounted on the shaft mainly relies on the method of spraying oil or spraying with an oil gun. The oil that is easy to be cleaned is first used kerosene and then gasoline; the oil that is difficult to be cleaned, first use the hot oil of 100-200 ℃. Wash or spray with oil gun, then clean with gasoline. Be careful not to scrape the hard grease or rust on the motor bearing with sharp tools, so as not to damage the smoothness of the motor bearing rolling element and groove ring. Clean the motor bearing and dry it with a clean cloth.