Ensures precision and reliability silicon ntride ball in industries requiring
●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/metering 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 |
● Notice for Using Silicon Nitride Ceramic Balls:
Avoid Contamination:
Keep the balls clean and free from dust, grease, or other contaminants that could affect their performance, especially in precision applications like bearings.
Proper Storage:
Store in a dry, clean environment to prevent moisture absorption or contamination. Use protective packaging if necessary.
Temperature Limits:
While silicon nitride balls can withstand extreme temperatures (up to 1200°C or more), avoid sudden thermal shocks to prevent cracking.
Compatibility Check:
Ensure the balls are compatible with the operating environment, including chemical exposure, load, and speed conditions.
Load Capacity:
Do not exceed the recommended load capacity for the balls, as excessive stress can lead to failure.
Installation Precision:
Use proper techniques and tools during installation to avoid misalignment or damage, especially in bearing applications.
Avoid Abrasive Contact:
While silicon nitride is highly wear-resistant, avoid contact with abrasive materials that could cause surface damage over time.
Regular Inspection:
Periodically inspect the balls for signs of wear, cracks, or surface damage, especially in high-stress applications.
Follow Manufacturer Guidelines:
Adhere to the operating instructions and recommendations provided by the manufacturer for optimal performance and safety.
Use Appropriate Lubrication (if required):
In bearing applications, ensure proper lubrication to reduce friction and wear, even though silicon nitride has a low friction coefficient.
Replace Worn-Out Balls:
Replace balls that show significant wear or damage to maintain system efficiency and prevent failure.
● FAQ:
What are silicon nitride ceramic balls made of?
They are made from silicon nitride (Si₃N₄), a high-performance ceramic material known for its strength, thermal stability, and wear resistance.
What are the key properties of silicon nitride ceramic balls?
High strength, low density, excellent wear resistance, thermal stability (up to 1200°C), chemical inertness, and electrical insulation.
What are silicon nitride ceramic balls used for?
They are used in bearings, grinding media, valves, pumps, medical devices, and high-performance industrial applications.
Why choose silicon nitride balls over steel or other ceramics?
They offer superior wear resistance, lower density, higher thermal stability, and better performance in high-speed and high-temperature environments.
What sizes are available for silicon nitride ceramic balls?
Sizes typically range from 0.5mm to several inches, depending on the application.
Can silicon nitride balls withstand high temperatures?
Yes, they can operate in temperatures up to 1200°C (2192°F) without losing their properties.
Are silicon nitride balls chemically resistant?
Yes, they are resistant to most acids, alkalis, and corrosive substances, making them suitable for harsh environments.
Are silicon nitride balls suitable for food or medical applications?
Yes, they are non-toxic, chemically inert, and biocompatible, making them ideal for food, pharmaceutical, and medical applications.
How do I clean silicon nitride ceramic balls?
Clean them with water, solvents, or ultrasonic cleaners, depending on the application. Ensure they are completely dry before reuse.
Can silicon nitride balls be reused?
Yes, they can be reused multiple times if they are not excessively worn or damaged.
What is the lifespan of silicon nitride ceramic balls?
Their lifespan depends on the application, operating conditions, and load. Proper use and maintenance can extend their life significantly.
Are silicon nitride balls brittle?
While they are strong and durable, they can fracture under heavy impact or shock loads. Avoid using them in impact-intensive applications.
What industries use silicon nitride ceramic balls?
They are used in aerospace, automotive, medical, electronics, industrial machinery, and precision engineering industries.
How do I store silicon nitride ceramic balls?
Store them in a dry, clean environment to prevent contamination or moisture absorption.
What is the cost of silicon nitride ceramic balls?
They are more expensive than steel or other ceramic balls due to their superior properties, but their performance and durability often justify the cost.
Can silicon nitride balls cause contamination?
They are highly wear-resistant, but prolonged use may cause minimal wear. Regular inspection is recommended to avoid contamination.
What is the density of silicon nitride ceramic balls?
The density is approximately 3.2 g/cm³, making them lighter than steel balls.
Are silicon nitride balls electrically conductive?
No, they are electrically insulating, making them suitable for electrical and electronic applications.
Can silicon nitride balls be customized?
Yes, we can customize size, tolerance, and surface finish to meet specific application requirements.
How do I select the right silicon nitride balls for my application?
Consider factors like load, speed, temperature, chemical exposure, and precision requirements. Consult with the us if needed