5x11 Full Ceramic Bearing 5x11x4 Si3N4 Miniature

Full Ceramic Bearing 5mm ID
✔️ Silicon Nitride 5 x 11 x 4mm - PTFE Cage, Ultra Smooth

This full ceramic ball bearing is made entirely from silicon nitride, including both the races and the balls. It’s got a PTFE cage for low-friction performance and is designed for tough environments where metal bearings just won’t cut it. Great for high-speed setups, chemical exposure, or magnetic-sensitive spaces. Ships as one bearing.

✅ Pack size: 1 bearing
✅ Inner diameter: 5mm
✅ Outer diameter: 11mm
✅ Width: 4mm
✅ Ball material: Si3N4 (Silicon Nitride)
✅ Cage material: PTFE
✅ Inner/outer races: Si3N4 ceramic

💡 Why choose silicon nitride full ceramic bearings over stainless or hybrid types?
Full ceramic bearings offer major advantages in harsh, high-performance settings:

• No metal, so they resist corrosion, chemicals, and magnetism

• Way lighter than steel, ideal for high-speed gear

• Extremely hard and smooth for reduced friction

• Perfect when you need non-conductive, non-magnetic parts

If your setup needs precision and toughness with zero metal, this one's a no-brainer, add it to your cart and keep things spinning clean!