Wave Washer vs. Belleville Washer
Both are spring washers, but they generate very different spring forces.
| Feature | Wave Washer | Belleville Washer |
|---|---|---|
| Shape | Wavy ring | Conical disc |
| Spring force | Light | High and near-constant |
| Load capacity | Low | High |
| Tuning | Fixed by wave height | Stackable in series or parallel |
| Best for | Electronics, bearing preload, anti-rattle | Heavy preload, thermal cycling |
Verdict
Wave washers damp light rattles and take up play in electronics. Bellevilles hold heavy, controlled preload and resist loosening under heat cycling.