Premium Ceramic ZrO2/Si3N4 Deep Groove Ball Bearings – Unmatched Durability & Precision
Engineered with high-grade zirconia oxide (ZrO2) and silicon nitride (Si3N4) for superior corrosion resistance, extreme temperature tolerance (-200°C to +800°C), and 60% lighter than steel bearings. Ideal for high-speed applications like dental drills, aerospace components, and electric vehicle motors.
Ultra-Low Friction & Maintenance-Free
Advanced ceramic materials reduce friction by 40% vs. metal bearings, enabling smoother rotation and 3x longer lifespan. Self-lubricating design eliminates grease contamination—perfect for food processing, medical devices, and cleanroom environments.
Precision-Ground for High RPM Performance
Laser-calibrated grooves and polished ceramic balls ensure ±0.001mm tolerance. Supports 50,000+ RPM (RS seals for dust/fluid protection). Trusted in CNC spindles, robotics, and turbochargers.
Global Wholesale Advantage
Direct factory pricing with bulk discounts—lowest MOQ guarantees. Worldwide shipping for industrial, automotive, and OEM suppliers. Stock includes sizes 623/624/625/626/627/635/636/638.
Why Us?
- 100% material authenticity - ISO 9001-certified production - Custom specs available (contact for hybrid ceramic-metal options)