Understanding common failure modes helps prevent costly downtime in machinery using external gear slewing bearings. Gear tooth wear is a frequent issue, caused by inadequate lubrication or misalignment. Regular lubrication and alignment checks mitigate this risk.

Pitting on raceways or gear teeth results from excessive loads or material fatigue. Ensure bearings are rated for your application’s load profile and avoid overloading. Corrosion, often due to moisture ingress, can be prevented with robust seals and protective coatings.

Other failures include bolt loosening and seal damage. Use proper bolt tightening protocols and inspect seals during maintenance. Implement condition monitoring systems to detect early signs of failure, such as vibration anomalies or temperature spikes. Proactive measures—including routine inspections, load monitoring, and environmental controls—extend bearing life and ensure reliable operation.