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SMR128ZZ Ceramic Si3N4 Shielded Bearing 8x12x3.5mm
SMR128ZZ Stainless Steel Ball Bearing
✔️ 8mm x 12mm x 3.5mm - Hybrid Ceramic (Si₃N₄ Balls)
This SMR128ZZ is a compact hybrid ceramic bearing built for smooth, low-friction rotation in small mechanisms. Stainless steel races paired with Si₃N₄ balls give you lighter rolling, higher speed potential, and better wear resistance compared to all-steel mini bearings.
✅ Hybrid ceramic design (Si₃N₄ balls)
✅ Stainless steel inner & outer rings
✅ Double metal shields (ZZ)
✅ Lubricated with grease
✅ Inner diameter: 8mm
✅ Outer diameter: 12mm
✅ Width: 3.5mm
Pack size: 1 bearing
Dimensions (mm):
| ID | OD | Width |
|---|---|---|
| 8 | 12 | 3.5 |
💡 Why are hybrid ceramic mini bearings so popular in high-speed setups?
Ceramic balls reduce friction and heat buildup, giving smoother performance and longer life.
Higher RPM capability
Lower rolling resistance
Better wear and temperature stability
Perfect pick when you want a tiny bearing that runs fast, cool, and clean.