0.5mm Ceramic High Chrome Grinding Media SiN Balls For High Speed Bearings
SiN Super Balls: The Ultimate High-Performance Ceramic Balls
In the realm of precision engineering and advanced material applications, SiN Super Balls have emerged as a game-changer. Made from silicon nitride, these ultimate high-performance ceramic balls are redefining standards in industries that demand durability, efficiency, and reliability.
What Are SiN Super Balls?
SiN Super Balls are crafted from silicon nitride (Si3N4), a material renowned for its exceptional hardness, low density, and high-temperature resistance. These ceramic balls offer superior performance compared to traditional steel balls, making them ideal for applications where high precision and durability are paramount.
Key Properties of Silicon Nitride Ceramic Balls
- High Hardness: Silicon nitride ceramic balls are significantly harder than steel balls, providing excellent wear resistance.
- Low Friction: With a lower coefficient of friction, these balls reduce energy consumption and heat generation, enhancing efficiency.
- Temperature Resistance: Capable of withstanding temperatures up to 1400°C, SiN Super Balls perform reliably in extreme conditions.
- Chemical Resistance: Their resistance to corrosion and chemical attack makes them suitable for harsh environments.
- Lightweight: Being lighter than steel, they contribute to reduced overall weight in assemblies, improving performance.
| 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 |
Applications of SiN Super Balls
SiN Super Balls are versatile and find applications across various industries. Here are some key areas where these ceramic balls excel:
Aerospace Industry
In aerospace applications, where precision and reliability are non-negotiable, SiN Super Balls are indispensable. They are used in measurement instruments, pumps, and compressors, offering high performance even under the most demanding conditions.
Automotive Sector
Automotive turbochargers and high-speed spindles benefit from the lightweight and durable nature of SiN Super Balls. Their ability to withstand high temperatures and reduce friction makes them ideal for enhancing vehicle performance.
Industrial Machinery
SiN Super Balls are perfect for use in bearings and seals within industrial machinery. Their high fracture toughness and thermal shock resistance ensure longevity and consistent performance, reducing maintenance costs and downtime.
Performance Comparison with Other Ceramic Balls
- Aluminum Oxide: Ordinary hardness and fracture toughness, not suitable for high-performance applications.
- Zirconium Oxide: Good hardness but less ideal than silicon nitride in terms of thermal shock resistance.
- Silicon Carbide: Offers good hardness but lacks the fracture toughness of silicon nitride.
Why Choose SiN Super Balls?
- Enhanced Durability: Silicon nitride balls last longer than steel, reducing replacement frequency and costs.
- Improved Efficiency: Their low friction and lightweight nature contribute to energy savings and enhanced system performance.
- Wide Temperature Range: Operate effectively in both high and low-temperature environments, making them versatile.
- Corrosion Resistance: Ideal for applications exposed to corrosive substances, ensuring longevity and reliability.
Getting the Most Out of SiN Super Balls
- Regular Inspection: Ensure regular checks to maintain optimal performance and prevent unexpected failures.
- Proper Installation: Follow manufacturer guidelines for installation to avoid damage and ensure correct operation.
- Custom Engineering Support: Utilize custom engineering services to tailor the balls to your specific application needs.
Description
Silicon Nitride Ceramic Ball is the most ideal bearing ball for bearing applications, due to the excellent properties of silicon nitride ceramics, it has many irreplaceable advantages comparing to traditional steel materials, such as: high mechanical strength, low wear loss, good self-lubrication, low density, high corrosion resistance, good electrical insulation etc.
Therefore, Silicon Nitride Balls are mostly used for some harsh working conditions: high speed/super speed bearings, high precision bearings, bearings in vacuum, high/low temperature bearings. Moreover, Silicon Nitride Ceramic Balls can also used as valve ball or measurement balls in chemical pumps/high temperature pumps/metdering pumps.
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 |
| Thermal Expansion Coefficient: |
3.2 10-6/K |
| Thermal Conductivity: |
25W/(m*K) |
Ball Sizes/Grade
| Size (mm) |
Φ0.8-180 |
| Grade |
Vdws | SPH | Vdwl | Ra |
| G3 |
0.05-0.08 | ≤0.08 | <0.13 | 0.01 |
| G5 |
0.08-0.13 | ≤0.13 | <0.25 | 0.014 |
| G10 |
0.15-0.25 | ≤0.25 | <0.5 | 0.02 |
| G16 |
0.2-0.4 | ≤0.4 | <0.8 | <0.025 |
| G20 |
0.3-0.5 | ≤0.5 | <1 | <0.032 |
| G100 |
0.4-0.7 | 0.4-0.7 | <1.4 | <0.0105 |
Case Studies
Ship to South Korea
Ship to Spain
FAQ
How do I store zirconia grinding beads?
Store them in a dry, clean environment to prevent contamination or moisture absorption.
What is the cost of zirconia grinding beads?
They are more expensive than other grinding media due to their superior properties, but their durability and efficiency often justify the cost.
Can zirconia beads cause contamination?
They are highly wear-resistant, but prolonged use may cause minimal wear. Regular inspection is recommended to avoid contamination.
What industries use zirconia grinding beads?
They are used in pharmaceuticals, paints, coatings, ceramics, electronics, and nanotechnology industries.
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