MOTOR BEARING WEAR
Diagnosed issue
In February 2026, Sonora detected increasing vibration levels on a motor in the Hymmen UV processing line, with rising RMS values and growing noise across the frequency spectrum. The data indicated developing tool wear or early-stage bearing deterioration.
Initial inspection suggested that elevated vibration could be partially influenced by a mechanical interference, where the drive belt was contacting a nearby structural element. However, continued monitoring showed a steady increase in RMS values, reaching levels close to critical thresholds, along with clear harmonic activity at shaft frequency – indicating progressing bearing wear.
Based on the observed trend and increasing vibration levels, the motor was replaced. The defect was validated as bearing-related deterioration.
Results
Continuous monitoring enabled early identification and tracking of increasing vibration levels, allowing maintenance teams to act before reaching critical thresholds. By distinguishing between temporary mechanical interference and actual bearing degradation, Sonora supported accurate diagnosis and timely motor replacement, preventing further equipment damage.