Silicon Nitride Ceramic Balls
Product Details
Product Overview
Silicon nitride ceramic balls are high-performance engineered ceramic products made from high-purity silicon nitride (Si₃N₄) through advanced sintering processes. They exhibit lightweight, high strength, high-temperature resistance, and corrosion resistance, widely used in aerospace, precision machinery, new energy vehicles, medical devices, and other industries.
Key Features
1.Excellent Mechanical Properties
Low density (3.2-3.3 g/cm³), high hardness (HV10 ≥ 1500), flexural strength ≥ 800 MPa.
2.Extreme Environment Adaptability
High-temperature resistance (long-term use up to 1200°C), oxidation resistance, and exceptional thermal shock resistance.
3.Chemical Stability
Resistant to acid and alkali corrosion, suitable for harsh chemical environments.
4.Electrical Insulation
Superior insulation properties prevent wear caused by electric currents.
Typical Applications
•Precision Bearings: High-speed machine tools, wind turbine spindle bearings.
•Automotive Industry: Hybrid vehicle motor bearings, turbocharger components.
•Medical Devices: Dental drills, surgical robot joints.
•Semiconductor Equipment: Vacuum robot guide balls.
Technical Specifications
Item | Value |
Material | (Si₃N₄) |
Density | 3.2-3.3 g/cm³ |
Hardness | HV10 ≥ 1500 |
Flexural Strength | ≥ 800 MPa |
Thermal Expansion | 3.2×10⁻⁶/℃ (20-1000℃) |
Max Operating Temp | 1200℃ (Non oxidizing environment) |
Competitive Advantages
•Extended Service Life: 5-8 times longer lifespan than metal bearing balls.
•Energy Efficiency: Reduced friction losses improve equipment efficiency.
•Customization: Non-standard sizes (Φ6.35mm-Φ50.8mm) and special surface treatments available.
Ordering Information
For inquiries, please provide drawings or technical requirements. Samples and long-term partnerships are welcome.
Key words:
Silicon Nitride Ceramic Balls