4x10mm Full Ceramic Ball Bearing Si3N4 4x10x4mm

4x10x4 Full Ceramic Ball Bearing
✔️ Silicon Nitride - High Strength & Low Friction

This 4x10x4mm full ceramic ball bearing is built entirely from Si3N4 (silicon nitride) ceramic, making it lightweight, corrosion-resistant, and capable of high-speed performance with minimal friction. Designed with a PTFE cage, it ensures smooth rolling in precision applications. Sold as one bearing.

✅ Type: Full ceramic ball bearing
✅ Size: 4 × 10 × 4 mm
✅ Inner diameter: 4mm
✅ Outer diameter: 10mm
✅ Width: 4mm
✅ Balls: Silicon nitride (Si3N4)
✅ Races: Silicon nitride (Si3N4)
✅ Cage: PTFE (Polytetrafluoroethylene)
✅ Quantity: 1 bearing
✅ Category: Full ceramic bearings

💡 Why choose full ceramic silicon nitride bearings?
Because they’re engineered for extreme conditions where steel bearings fail.

• Lightweight yet stronger than steel for high-speed setups

• Excellent resistance to heat and corrosion

• Low friction and long service life in precision tools, motors, and robotics

If you need a compact, ultra-smooth bearing that resists heat and corrosion, the 4x10x4 full ceramic Si3N4 option is a top performer.