CUTTER BEARING WEAR
Diagnosed issue
In December 2025, Sonora detected early signs of wear on a cutter within SBA’s edge processing line. The vibration data indicated increased RMS levels and growing harmonic activity, suggesting developing bearing and tool wear, similar to a previously observed defect on a parallel production line.
In early January, the machine entered an idle state, but analysis of prior operating data confirmed persistent abnormal vibration patterns. Continued monitoring showed stable RMS values but increasing harmonics, indicating ongoing mechanical degradation rather than a resolved condition.
By late January, vibration levels remained elevated compared to normal operation, with approximately 0.5g higher RMS and stronger harmonic components. Based on these trends, Sonora repeatedly recommended inspection of the bearing and shaft condition.
Following these observations, SBA replaced the motor, confirming that the detected vibration patterns were associated with a developing defect.
Results
Continuous monitoring enabled early identification of developing wear and ensured the issue was not overlooked despite periods of stable RMS or machine inactivity. By tracking harmonic behavior over time, Sonora supported timely maintenance decisions and helped prevent further deterioration and potential production disruption.