Rough or Noisy Operation
Symptom: Grinding, grating, or rumbling sounds during rotation. The swing motion may feel jerky or require more hydraulic power.
Cause:
Lack of Lubrication: This is the most common cause. Without grease, metal-to-metal contact occurs, leading to rapid wear and pitting.
Contamination: Dirt, sand, or water has entered the bearing seal, acting as an abrasive that grinds down the raceways and rolling elements.
Raceway Damage: Spalling, brinelling (indentations from shock loads), or corrosion on the raceways.
This 199-4697 slewing bearing is used for 324D 326D 326D2 322C excavator.
Related part number:
199-4596
199-4698
