Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Price:
Negotiable
MOQ:
1kg
Delivery Time:
within 15days
Brand:
Zhongli
Product Description
Ultra-Low Wear Si3N4 Balls Extend Bearing Lifespan 10X Over Steel
Silicon nitride (Si3N4) ceramic balls represent a significant advancement in bearing technology, offering exceptional durability and performance compared to traditional steel bearings. These components are revolutionizing industries that demand high-performance solutions.
Key Features of Si3N4 Ceramic Balls
- High Heat Resistance: Withstands temperatures up to 1800°F (982°C) for high-temperature applications
- Low Friction: Smooth surface ensures minimal friction, reducing wear and improving efficiency
- Corrosion Resistance: Excellent resistance to most chemicals for use in corrosive environments
- Lightweight: 60% lighter than steel, reducing centrifugal force and enabling higher operational speeds
Performance Advantages Over Steel
Enhanced Longevity: Ultra-low wear characteristics extend bearing life significantly, reducing maintenance and replacement costs.
Extreme Condition Performance: Maintains structural integrity in high-temperature environments where steel would degrade.
Improved Efficiency: Reduced weight lowers energy requirements and decreases machinery load.
Electrical Insulation: Non-conductive properties prevent electrolytic corrosion in electric motors and generators.
Material Property Comparison
| Property | Silicon Nitride (Si3N4) | Steel (440C) | Zirconia (ZrO2) | Alumina (Al2O3) |
|---|---|---|---|---|
| Density (g/cm³) | 3.2 | 7.8 | 6.0 | 3.9 |
| Hardness (HV) | 1,400-1,600 | 700-900 | 1,200-1,300 | 1,500-1,800 |
| Fracture Toughness (MPa*m½) | 6-7 | 15-20 | 7-10 | 3-4 |
| Compressive Strength (GPa) | 2.5-3.5 | 2.0-2.5 | 2.0-2.3 | 2.0-3.0 |
Physical Properties
| Chemical Composition: | Si3N4≥95% |
| Bulk Density: | 3.2±0.05g/cm3 |
| Elastic Modulus: | 350GPa |
| Hardness Vickers: | 1870HV |
| Bending Strength: | 780MPa |
| Fracture Toughness: | 7.2MPa*m1/2 |
Available Sizes and Grades
| Size (mm) | Φ0.8-180 |
|---|---|
| Grade | Specifications |
| G3 | Vdws: 0.05-0.08 | SPH: ≤0.08 | Vdwl: <0.13 | Ra: 0.01 |
| G5 | Vdws: 0.08-0.13 | SPH: ≤0.13 | Vdwl: <0.25 | Ra: 0.014 |
| G10 | Vdws: 0.15-0.25 | SPH: ≤0.25 | Vdwl: <0.5 | Ra: 0.02 |
Manufacturing and Global Distribution
Frequently Asked Questions
What sizes and tolerances are available?
Diameter range: 0.5mm to 50mm (custom sizes possible). Sphericity as low as 0.1 µm (Grade 5 for ultra-precision bearings). Surface finish: Ra < 0.02µm (mirror polish for low friction).
Are silicon nitride balls FDA-approved for medical use?
Yes! Si3N4 is biocompatible (ISO 6474-1) and used in spinal implants, dental devices, and joint replacements due to its antibacterial properties.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangzhou Zoli Technology Co.,Ltd.
Location
Room 702A, No. 585, Airport Road, Tangjing Street, Baiyun District, Guangzhou City, Self-compiled 2341
Contact Person
Ain Qiu