R4 Full Ceramic Bearing 1/4" x 5/8" x 0.196" inch - Miniature

R4 Full Ceramic Ball Bearing
✔️ Zirconia (ZrO₂), PTFE Cage, 1/4" x 5/8" x 0.196"

This R4 full ceramic bearing is built entirely from zirconia ceramic with a PTFE cage for smooth, corrosion-resistant, non-magnetic performance. Ideal for high-temperature, chemically harsh, or non-conductive environments, this bearing offers durability and smooth rotation in precision equipment. Sold as one bearing.

✅ Inner diameter (ID): 1/4"
✅ Outer diameter (OD): 5/8"
✅ Width: 0.196"
✅ Balls: Zirconia (ZrO₂) ceramic
✅ Races: Zirconia ceramic
✅ Cage: PTFE (Polytetrafluoroethylene)
✅ Dynamic load rating: 335 lbs
✅ Static load rating: 139 lbs
✅ Max operating temperature: 356°F (180°C)
✅ Pack size: One bearing

💡 Why use full ceramic bearings in specialized applications?
They outperform steel in tough, corrosive, or high-temp environments.

• Non-magnetic and chemically resistant

• Ideal for medical, food-grade, or semiconductor systems

• Withstands high heat with minimal expansion

• Ultra-smooth for high-precision or low-noise setups

This bearing is built for extremes, grab one today and keep your high-performance gear rolling clean!