Unusual sounds, such as whining, grinding, or clunking, can indicate internal problems within the gearbox.

• Listen for Unusual Noises: Noise analysis can reveal problems with gears, bearings, or shafts. A high-pitched whine or grinding could indicate damaged gears, while a clunking sound might be a sign of misalignment or worn-out bearings.
• Vibration Monitoring: Excessive vibration is often a sign of misalignment, damaged components, or worn-out bearings. Vibrational analysis tools can detect abnormal frequency patterns that indicate gear tooth wear or imbalance.

Temperature Monitoring: Overheating can cause severe damage to gearbox components. Temperature sensors or infrared thermography can detect areas of excess heat, which may indicate friction or insufficient lubrication.