Wholesale 10-Pack Bearings 6204 Full Ceramic Si3N4 Bearings 20x47x14mm

6204 Full Ceramic Ball Bearings - Si₃N₄, Unsealed
✔️ 20mm x 47mm x 14mm - Pack of 10, PTFE Cage, High-Temp Ready

This 10-pack of 6204 full ceramic ball bearings is made entirely from Silicon Nitride (Si₃N₄), offering high strength, low friction, and excellent thermal stability. With a PTFE cage and no seals, these bearings are ideal for clean, dry, or high-temperature environments like semiconductor tools, lab equipment, and precision instruments.

✅ Size: 20mm ID x 47mm OD x 14mm width
✅ Type: Full ceramic ball bearing (open)
✅ Balls: Silicon Nitride (Si₃N₄) ceramic
✅ Races: Silicon Nitride (Si₃N₄) ceramic
✅ Cage: PTFE (Polytetrafluoroethylene)
✅ Closures: None (open design)
✅ Quantity: 10 Bearings
✅ Brand: VXB
✅ Category: Full ceramic bearings

💡 Why choose Si₃N₄ ceramic bearings over steel?
Silicon Nitride bearings are lighter, tougher, and more heat-resistant than steel, with near-zero electrical conductivity - perfect for high-speed spindles, aerospace, and environments exposed to extreme temperatures or corrosion.