Bearing noise: The new bearing has a slight running sound when it is running. This sound is expressed in decibels. The causes of rolling bearing noise are more complicated.
The main reasons are:
(1) The surface of the inner and outer rings of the bearing is uneven. Produces bearing noise.
(2) Bearing noise is generated due to improper installation and uneven force.
(3) Bearing noise is generated due to uneven ball diameter and friction with the inner and outer rings.
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