6903 Full Ceramic Bearing 17x30x7mm

6903 full ceramic ball bearing
✔️ 17mm x 30mm x 7mm ZrO₂ construction

This 6903 full ceramic bearing is built entirely from zirconia for corrosion resistance, low friction, and smooth performance in harsh, high-temperature, or moisture-exposed environments. It’s a handy upgrade when you need non-magnetic, lightweight, and reliable rotation.

✅ Type: full ceramic deep groove bearing
✅ Cage: PTFE (Polytetrafluoroethylene)
✅ Balls: zirconia ceramic (ZrO₂)
✅ Races: zirconia ceramic (ZrO₂)
✅ Dimensions: 17mm ID × 30mm OD × 7mm width
✅ Temperature rating: up to 356°F (180°C)
✅ Pack size: 1 bearing
✅ Equivalent: 61903 series

Dimensions table (mm):

💡 Why choose a full ceramic 6903 bearing?
Because ceramic delivers clean, stable performance when steel can’t.

• Non-magnetic and corrosion-proof for specialized environments

• Low thermal expansion keeps accuracy under heat

• Smooth, low-friction running ideal for high-precision setups

A solid upgrade when you want durability and smooth operation with zero compromise.