Technical Troubleshooting for Synchronous Belts---Common Failures, Root Causes & Solutions

Technical Troubleshooting for Synchronous Belts

Common Failures, Root Causes & Solutions

Technical Troubleshooting for Synchronous Belts---Common Failures, Root Causes

1. Abnormal Wear

Symptoms: Worn/flattened teeth, side wear, fabric peeling; premature wear on tooth surface/back

Causes: Model mismatch; too small pulley diameter; shaft misalignment; excessive tension; foreign particles

Solutions: Use matched model; ensure pulley diameter meets standard; align shafts/pulleys; set proper tension; clean and protect

2. Tooth Jumping / Loss of Position

Symptoms: Position error; clicking noise under load; motor idling

Causes: Insufficient tension; overload; too few meshing teeth; poor system rigidity/bearing wear

Solutions: Adjust tension; recalculate torque (safety factor ≥1.5); increase meshing teeth; replace worn bearings

3. Excessive Noise & Vibration

Symptoms: High-pitched noise/humming at high speed; belt flapping; machine vibration

Causes: Heavy meshing impact; poor pulley balance; misalignment/tension issues; foreign matter in grooves

Solutions: Use curved teeth; balance pulleys; correct alignment/tension; keep grooves clean

4. Cracking & Breakage

Symptoms: Transverse breakage, back cracking, layer separation; core wire exposure, hardened rubber

Causes: Shock loads/sudden stops; pulley burrs; high temperature/oil/chemicals; forced installation; bending fatigue

Solutions: Reduce shocks; remove burrs; use resistant belts; install properly; follow pulley diameter requirement


Key Tips for Long Service Life

Use correct model; ensure alignment; set proper tension; replace worn pulleys with belts; protect from oil, dust and high temperature


Choose CHIBOSS Synchronous Belts for stable transmission and long service life.





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