How Should Bearings Be Cleaned?

Bearing as an important mechanical parts, widely used in the living environment.  An important indicator of bearing quality is bearing cleanliness. It is necessary to carry out effective cleaning of bearings in the process of production and use to prolong their service life.
Many friends know that the vast majority of newly bought bearings are coated with grease, but the grease is mainly used to prevent the bearing from rust, and does not play a lubrication role, and bearings are particularly easy to hide dirt, generally difficult to clean thoroughly.  Even if you buy bearings without lubricating oil, for a long time, they will absorb dust due to magnetism and airflow.  Then mixed sweat, water vapor and so on in the bearing, between the ball, the gap gathered to form a "dirt community", which is "fatal" to the bearing rotation.
If the bearing is used for a long time, it will contact with dust, oil or water in the air, causing the bearing to dry out, rust and affect the operation.  At this time, bearing cleaning is very important.