What damage will be caused to the bearing if the use method is incorrect?

The countermeasures taken are to ensure that the bearing is installed in place or to change the free side bearing outer ring fit to clearance fit, so as to compensate the bearing when the bearing is overloaded.
If the installation cannot be ensured in place, the direct contact of the bearing can be reduced by increasing the oil film thickness of the lubricant (increasing the viscosity of the lubricant) or reducing the load of the bearing.