Self Lubricating Silicon Nitride Balls Lead Grinding Media 4mm 6mm 9mm

Product Description

Understanding Silicon Nitride Balls

• High Strength and Wear Resistance: Silicon nitride balls boast high strength, making them resistant to wear and tear, which is crucial for high-speed operations.
• Temperature and Corrosion Resistance: With a high resistance to temperature fluctuations and corrosion, they are suitable for a wide range of environments, including chemical and high-temperature applications.
• Lightweight: With a density of only 3.2 g/cm³, they are less than half the weight of steel, reducing the centrifugal force during operation.
• Self-Lubricating: Most notably, these balls have self-lubricating properties, which means they can operate efficiently without the need for additional lubricants like grease or oil.

The Benefits of Self-Lubricating Silicon Nitride Balls

1. High-Speed Performance

2. Extended Service Life

3. Versatility Across Temperature Ranges

4. Environmental and Operational Cleanliness

5. Corrosion Resistance

Applications of Silicon Nitride Balls

• Aerospace: Used in aircraft engines and gyroscopes, silicon nitride balls provide reliability and reduced maintenance needs in critical systems.
• Automotive: In electric vehicles, they are used in electric motors and hybrid bearings to enhance efficiency and lifespan.
• Industrial Manufacturing: Essential in semiconductor manufacturing and metalworking tools, they ensure smooth operations under high-speed and low-lubrication conditions.
• Renewable Energy: In wind turbines, they handle large loads and stresses, offering durability and reducing downtime.

Silicon Nitride vs. Steel Balls: A Comparative Analysis

• Hardness and Wear Resistance: Silicon nitride balls have a hardness of about 1500 HV, significantly higher than steel, providing superior wear resistance.
• Density: With a density of 3.2 g/cm³ compared to steel's 7.8 g/cm³, silicon nitride balls reduce the overall weight of the bearing assembly.
• Thermal Expansion: The low thermal expansion coefficient of silicon nitride (3.4 x 10⁶/K) compared to steel (12.5 x 10⁶/K) makes it more stable under temperature variations.
• Corrosion Resistance: Silicon nitride balls offer high resistance to corrosion, unlike steel, which can rust and degrade over time.

Challenges and Considerations

●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:

● Ball Sizes/Grade :

Exhibition & Partner

Case

Ship to South Korea

Ship to Spain

FAQ

1. What sizes and tolerances are available?

• Diameter range: 0.5mm to 50mm (custom sizes possible).

• Sphericity: As low as 0.1µm (Grade 5 for ultra-precision bearings).

• Surface finish: Ra < 0.02µm (mirror polish for low friction).

2. 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.

3. How do I choose the right Si3N4 balls for my application?

Consider:

• Load & speed requirements (dynamic/static stress).

• Temperature range (Si3N4 excels in high heat).

• Chemical exposure (resistant to most acids/alkalis).

• Electrical insulation needs (non-conductive).

Guangzhou Zoli Technology Co., Ltd.  specializes in the development and production of high-performance metallic and non-metallic materials, as well as cutting-edge nanotechnology solutions for precision grinding and material processing. With a strong foundation in innovative grinding and milling technologies, we have established ourselves as a leader in the field of precision particle size reduction and material processing.

Zoli Currently operates two state-of-the-art R&D and manufacturing facilities located in Guangzhou, employing over 60 skilled professionals and covering a total production area of more than 6,000 square meters. Our product portfolio includes advanced milling equipment designed for applications in materials science, pharmaceuticals, ceramics, metallurgy, and nanotechnology. They are widely utilized across a diverse range of industries, including renewable energy, telecommunications, consumer electronics, and biomedical devices. 

At our core, we are committed to delivering high-performance, reliable, and innovative milling solutions that meet the evolving needs of our customers. By combining superior engineering with a customer-centric approach, we strive to build long-term partnerships and contribute to the advancement of material science and technology worldwide.