When the KOYO bearing rotates when KOYO bearings inner and outer ring raceways due to contact with the rolling scrolling, and running track to the dark side, running track attached to the Raceway surface does not belong to an exception, this variable may be able to tell the load conditions, so when the demolition when KOYO bearings, please pay strict attention and observation of Raceway surface running track.
　　If you look closely at the track, you will learn that only burdens radial loads, bear large axial loads, moments of endurance load, or extreme rigidity on bearing boxes are not equal. Can check the bearing is combined with an unexpected load and install error state, and became a holding loss for clues to the cause of the bearing.