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Proper maintenance of bearings

Proper maintenance of bearings


1, clean

When the bearing is removed for inspection, the appearance shall be recorded by means of photography.Also, confirm the amount of remaining lubricant and sample the lubricant before cleaning the bearing.

A. The cleaning of bearings can be divided into rough washing and fine washing, and a metal network rack can be placed at the bottom of the containers used.

B. Remove grease or stickiness with brush in oil during rough washing.If the bearing is rotated in oil at this time, note that the rolling surface will be damaged due to foreign matter.

C. In fine washing, turn the bearing slowly in oil, and do it carefully.

Usually the use of cleaning agents for neutral water diesel or kerosene, according to the need sometimes also use warm lye.No matter what kind of cleaner you use, filter it regularly to keep it clean.After cleaning, apply anti-rust oil or anti-rust grease to the bearing immediately.

2. Check and judge

In order to judge whether the disassembled bearing can be reused, it is necessary to check its dimensional accuracy, rotation accuracy, internal clearance, mating surface, raceway surface, cage and sealing ring.

The results of the inspection may be judged by those who use habitual bearings or are proficient in bearings.

The criteria for judging vary according to mechanical properties and importance as well as inspection periods.If the following damage occurs, the bearing must not be reused and must be replaced.

1) Fracture and defect of bearing parts.

2) Peel off the rolling surface of the raceway surface. 

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