Our Ceramic Bearing line delivers industry-leading performance with silicon nitride balls and precision steel races. Enjoy ultra-low friction, high corrosion resistance, and temperature stability up to 450 °C—perfect for aerospace, motorsports, and heavy-duty machinery.
Ceramic Bearing Material
Zirconia Ceramic Bearing
Silicon Carbide Ceramic Bearing
Silicon Nitride Ceramic Bearing
Ceramic Bearing Type
Ceramic Aligning Balls Bearing
Ceramic Angular Contact Ball Bearings
Ceramic Deep Groove Ball Bearing
Ceramic Outer Ball Bearing
Ceramic Thrust Ball Bearing
What Is a Ceramic Bearing?
Ceramic bearings combine ceramic rolling elements—typically silicon nitride (Si₃N₄) or zirconia (ZrO₂)—with steel or ceramic races. Unlike all-steel bearings, they offer up to 80% weight reduction, vastly lower centrifugal forces, and up to 40% higher permissible speeds. These attributes translate into smoother operation, less energy consumption, and extended service life.
Key Advantages of Ceramic Bearings
Ultra-Low Friction: Surface finishes down to Ra < 10 nm reduce rolling resistance by up to 80%.
Lightweight Design: Ceramic balls weigh ~40% less than steel counterparts, cutting centrifugal loads.
High Temperature Tolerance: Stable performance from –40 °C up to 450 °C without lubricant breakdown.
Corrosion Resistance: Chemically inert ceramics withstand harsh environments and require minimal lubrication.
Electrical Insulation: Silicon nitride balls prevent stray current damage in electric motors and generators.
Detailed Specifications
| Parameter | Value / Range |
|---|---|
| Material | Si₃N₄ (Grade 3) / ZrO₂ |
| Purity | ≥ 99.5% Al₂O₃ equivalent |
| Bore Diameter (ID) | 3 mm – 200 mm |
| Outside Diameter (OD) | 10 mm – 300 mm |
| Width | 4 mm – 50 mm |
| Max. Operating Temp. | –40 °C to 450 °C |
| Density | 3.2 g/cm³ (Si₃N₄) |
| Hardness | 1,750 HV (Vickers) |
| Thermal Conductivity | 30 W/m·K (Si₃N₄) |
| Electrical Resistivity | 10¹³ Ω·cm |
| Dimensional Tolerance | ABEC 5 / ISO Class 5 |
Applications of Ceramic Bearing
FAQs About Industrial Ceramic Crucible
Hybrid Ceramic Bearing: Ceramic balls with steel inner and outer races, balancing cost and performance.
Full Ceramic Bearing: Both balls and races are ceramic, offering maximum corrosion resistance and electrical insulation, though at a higher price point.
Select by inner diameter (ID), outer diameter (OD), width (W), material (Si₃N₄ or ZrO₂), and tolerance class (e.g., ABEC 5/ISO 5), while also checking dynamic load ratings and maximum RPM.
Our Ceramic Bearings operate reliably from –40 °C up to 450 °C, making them ideal for extreme-temperature environments.
With a hardness up to 1,750 HV and surface finishes as fine as Ra < 5 nm, Ceramic Bearings incur minimal wear and resist corrosion—often achieving 2–3× the service life of comparable steel bearings.
While Ceramic Bearings have a higher upfront cost, their extended lifespan, reduced maintenance, and energy savings usually result in a lower total cost of ownership.
Use high-temperature synthetic greases or solid lubricants (e.g., MoS₂). Inspect every 1,000–2,000 operating hours and replenish lubrication to maintain optimal Ceramic Bearing performance.
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