ProYoおよびDuncan製ヨーヨー用ベアリング10個セットChrome Steel ダブルシールド付きボールベアリング ZZ 高い耐久性と最大71000回転の性能RPM ProYoおよびDuncanモデルに対応

These bearings are chrome-steel, deep groove ball bearings with double shields to block dust and debris. They’re designed for quick swaps and reliable spin in ProYo and standard Duncan-style yoyos, keeping performance consistent trick after trick.

✅ Pack size: 10 bearings in one tube
✅ Material: chrome steel for durability
✅ Shields: double metal shields (ZZ) keep dust out
✅ Lubrication: factory pre-lubed with grease
✅ Speed: up to 71000 rpm for fast play
✅ Fit: ProYo and Duncan YoYo models

💡 What is a ball bearing used for in hobby yoyos and small mechanical devices?
In general, ball bearings reduce friction and support smooth rotation in compact assemblies.
- In yoyos, bearings let the axle spin freely for longer tricks.
- They handle radial loads and maintain rotation accuracy.
- Shielded designs resist dust and prolong bearing life.