High temperature bearing abnormal sound overhaul Remedy

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In order to determine whether the high-temperature bearings removed, clean the bearing after the inspection, carefully check the raceway, rolling surface, with the surface state of the cage wear, bearing clearance increase in size and the presence of precision drop injury, abnormal. Non-separable ball bearings, the inner ring with one hand and the level of support the rotating outer ring to confirm whether smooth.bearing factory in china
Bearings and other separation-shaped bearing, the rolling body, the outer ring raceway surface were examined. Large-scale imports of bearing rotation, because they can not hand pay attention to check the rolling elements, raceways rather keep the rack, wall and surface appearance, the importance of bearing the higher the greater the need for careful checking.
Phenomenon:
1) engine idling sound issue in high-speed "giggle" sound (issued by the crankcase)
2) emergency refueling release the throttle instantly sound more pronounced.
3) no significant change in the temperature rise. When the load increases, the sound increases.
4) sound more bearing sound slow, short.