15-Pack 6203 Full Ceramic Ball Bearings Si3N4 17x40x12mm

6203 Full Ceramic Ball Bearings
✔️ Si3N4 - 17x40x12mm - Pack of 15

This 15-pack of 6203 full ceramic ball bearings is made entirely from silicon nitride (Si₃N₄), offering unmatched resistance to heat, corrosion, and wear. With a PTFE cage for smooth rotation and no lubrication needed, these bearings are ideal for clean rooms, chemical environments, and high-speed machinery.

✅ Size: 17mm (ID) x 40mm (OD) x 12mm (Width)
✅ Material: Full ceramic (Si₃N₄ inner/outer races and balls)
✅ Cage: PTFE (Polytetrafluoroethylene)
✅ Type: Deep groove full ceramic ball bearing
✅ Non-magnetic, non-corrosive, and ultra-lightweight
✅ Lubrication: Dry running - no grease required
✅ Quantity: 15 bearings
✅ Category: Full ceramic bearings

💡 Why use full ceramic ball bearings?
Full ceramic bearings are ideal for extreme conditions. They're lightweight, operate without lubrication, and resist chemicals and heat better than steel - making them perfect for medical, aerospace, and precision applications.

A high-performance solution when strength, speed, and clean operation matter most.