1/4インチInch 単体セラミックボールベアリングAl2O3 自転車用ベアリング向けアルミナ酸化物 高強度セラミックボール 1個入り ホイールハブや精密アセンブリに適しており、耐久性に優れ、耐摩耗性が高い

1/4 Inch Alumina Ceramic Ball Bearing, Al2O3
✔️ Loose 1/4 in ceramic ball, Al2O3 alumina oxide, single ball

This 1/4 inch loose ceramic ball is crafted from high-strength Al2O3 (alumina oxide) and is a popular choice for bicycle bearings and precision mechanisms. It delivers low friction, high hardness, and solid corrosion resistance in compact bearing setups.

✅ Size: 1/4 in (6.35 mm) diameter
✅ Material: Al2O3 alumina oxide ceramic
✅ Type: Loose ceramic ball bearing (single ball)
✅ Quantity: 1 ball

💡 What are ceramic bearing balls used for in precision bicycles and machinery?

These handy ceramic balls help reduce friction and wear in small bearings, boosting efficiency and longevity in bikes and precision gear.

- Reduces rotational resistance for smoother operation
- Provides high hardness for longer wear life
- Offers corrosion resistance in wet environments
- Maintains tight tolerances for reliable performance

1/4" Loose Ball Bearing Ceramic Balls Al2O3 G10 Alumina Oxide One Ball