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Worm gear reducers are widely used in drive systems but can develop overheating, noise, leakage, and rapid wear. This guide organizes common faults, causes, and corrective actions.
1. Excessive Temperature Rise
Housing temperature exceeds ~80°C after running. Common causes:
- Insufficient or wrong lubricant
- Overload beyond rated torque
- Mesh backlash too tight—friction heating
- Poor cooling—high ambient temperature or blocked ventilation
Corrective action: Check oil level and grade; confirm load is within rating; verify backlash; improve ventilation.
2. Abnormal Noise or Vibration
- Severe flank wear distorting tooth form
- Damaged bearings with increased axial play
- Coupling misalignment
- Loose foundation bolts
Corrective action: Inspect flanks; replace bearings; realign couplings; tighten foundation bolts.
3. Oil Leakage
Leaks typically occur at shaft seals and housing joints. Causes:
- Aged or worn shaft seals
- Blocked breather raising internal pressure
- Failed joint sealant or loose bolts
- Overfilled oil level
Corrective action: Replace seals; clear breather; reseal joints and tighten bolts crosswise; drain to correct level.
4. Rapid Wear
Severe flank wear or pitting in short service time. Causes: contaminated oil, wrong backlash, material mismatch, overload.
Corrective action: Change to clean lubricant; readjust backlash; verify material pairing; check load.
Routine maintenance: monitor oil level, listen for noise, check temperature—shut down and inspect when abnormal. Dezhou Xinmi Machinery supplies custom parts and repair services.
