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Do you know how to maintain the bearing in motor?

66 Published by admin Feb 21,2024

Maintenance and cleaning of bearing in motor:

The motor should usually be cleaned and lubricated after 2,000 hours of operation. The maintenance of bearing in motor is very important to the service life of bearing in motor. The shafts used in generators include sliding bearings, ball bearings and roller bearings. The maintenance and cleaning methods of motor bearings are as follows:

The warm oil cleaning method is mainly used for bearings in motors that have a long running time and are hardened by soft dry oil or anti-rust paste. They should be immersed in warm engine oil at 100-200°C, clamp the bearings with pliers, and use a brush to clean the bearings. Oil stains. Soft dry oil or anti-rust paste melts when heated to 100-200°C, and is easily washed out from the gaps in the bearing. Sometimes it is only necessary to rock the bearing several times in the oil. Oil dirt will also flow away from the gaps. When cleaning the radial spherical bearings of old motors or imported motors, the balls, ball frames, and inner rings should be turned laterally out of the outer ring and then immersed in warm oil. When cleaning short cylindrical roller bearings, the rollers should also be cleaned. , the bead frame, inner ring and outer ring are detached. During warm oil cleaning, the oil temperature should not exceed 20°C. If an open flame is used for indirect heating, care should be taken to avoid burning the oil. The bearing in motor should be suspended in the oil pan and sinking to the bottom will cause overheating and reduce the hardness.bearing in motor

Another cleaning method is to soak the bearing in motor in kerosene for 5-10 minutes. Hold the inner ring with one hand and rotate the outer ring with the other hand. The dry oil or anti-rust paste on the bearing will fall off. Then put the bearing in motor into relatively clean kerosene, scrub it with a soft brush to clean the oil in the balls and gaps, then put it in gasoline to clean it once, take it out and put it on clean paper. When cleaning radial spherical ball bearings and short cylindrical roller bearings, the balls, ball frames, inner rings and outer rings should be separated and cleaned. The bearings installed on the shaft are cleaned mainly by spraying oil or spraying with an oil gun. The oil stains that are easy to be cleaned are first washed with kerosene and then gasoline; the oil stains that are difficult to be cleaned are first rinsed with warm engine oil at 100-200°C. Or spray it with an oil gun, and then clean it with gasoline. Be careful not to use sharp tools to scrape the hardened grease or rust on the bearing surface to avoid damaging the brightness of the bearing rolling elements and groove rings. Wipe the clean bearing in motor with a clean cloth.

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