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China Non Oxide Lead Grinding Media Ceramic Silicon Carbide Balls Corrosion Resistance
China Non Oxide Lead Grinding Media Ceramic Silicon Carbide Balls Corrosion Resistance

  1. China Non Oxide Lead Grinding Media Ceramic Silicon Carbide Balls Corrosion Resistance
  2. China Non Oxide Lead Grinding Media Ceramic Silicon Carbide Balls Corrosion Resistance
  3. China Non Oxide Lead Grinding Media Ceramic Silicon Carbide Balls Corrosion Resistance
  4. China Non Oxide Lead Grinding Media Ceramic Silicon Carbide Balls Corrosion Resistance

Non Oxide Lead Grinding Media Ceramic Silicon Carbide Balls Corrosion Resistance

  1. MOQ: 1kg
  2. Price:
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Payment Terms L/C,T/T,Western Union
Supply Ability 50-200 ton/month
Delivery Time within 15days
Packaging Details barrel
Chemical Inertness High
Usage silicon nitride bearings
Material Silicon Nitride
Thermal Conductivity 25 W/mK
Color White
Wear Resistance Excellent
Density 3.2 g/cm3
Melting Point 1900°C
Corrosion Resistance High
Size Range 1mm - 25mm
Temperature Resistance Up to 1400°C
Surface Finish Polished
Hardness 9 Mohs
Type Balls
Surface Polishing Finish
Brand Name Zhongli
Model Number SNB-01
Certification CE ISO
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,T/T,Western Union Supply Ability 50-200 ton/month
Delivery Time within 15days Packaging Details barrel
Chemical Inertness High Usage silicon nitride bearings
Material Silicon Nitride Thermal Conductivity 25 W/mK
Color White Wear Resistance Excellent
Density 3.2 g/cm3 Melting Point 1900°C
Corrosion Resistance High Size Range 1mm - 25mm
Temperature Resistance Up to 1400°C Surface Finish Polished
Hardness 9 Mohs Type Balls
Surface Polishing Finish Brand Name Zhongli
Model Number SNB-01 Certification CE ISO
Place of Origin China
High Light Non Oxide lead grinding mediaSilicon Carbide lead grinding mediasilicon carbide balls Grinding Media

Product Description

Non-Oxide Ceramic Balls: Silicon Nitride for Corrosion Resistance

 

In the world of advanced materials, silicon nitride ceramic balls stand out as a beacon of innovation and efficiency. Known for their exceptional properties, these non-oxide ceramic balls are redefining the standards in industries where corrosion resistance is paramount. Whether in high-speed bearings or intricate valve systems, silicon nitride balls offer unparalleled performance.

 

Understanding Silicon Nitride Ceramic Balls

 

Silicon nitride (Si3N4) is a non-oxide ceramic material renowned for its outstanding mechanical properties. Unlike oxide ceramics, non-oxide ceramics like silicon nitride offer superior resistance to thermal shock, wear, and corrosion, making them ideal for demanding environments.

 

Key Properties of Silicon Nitride Ceramic Balls

 

  1. Corrosion Resistance: Silicon nitride ceramic balls exhibit strong corrosion resistance, especially in oxidizing and corrosive environments. This makes them highly suitable for applications where traditional materials would deteriorate rapidly.
  2. High-Temperature Stability: These ceramic balls maintain their strength and hardness at temperatures up to 1100°C, making them perfect for high-temperature applications.
  3. Non-Magnetic and Electrically Insulating: Silicon nitride is non-magnetic and electrically insulating, allowing its use in magnetic fields and electrical applications without interference.
  4. Lightweight and High Rigidity: With a density of 3.26 g/cm³, silicon nitride balls are 60% lighter than steel balls. This reduced weight lowers the centrifugal force and abrasion in high-speed applications, enhancing efficiency and longevity.
  5. Low Thermal Expansion: The linear expansion coefficient of silicon nitride is 3.2 × 10^-6/K, significantly lower than that of steel, allowing it to withstand sudden temperature changes without cracking.
  6. Self-Lubricating: The self-lubricating property of silicon nitride reduces the need for additional lubricants, which is advantageous in vacuum and high-temperature environments.

 

Applications of Silicon Nitride Ceramic Balls

 

Silicon nitride ceramic balls are pivotal in various industries due to their unique properties:

 

  • Bearings: Their low density and high rigidity make them ideal for high-speed bearings, reducing friction and wear.
  • Valves: In chemical processing, silicon nitride balls are used in valves where they resist corrosion from harsh chemicals.
  • Aerospace and Automotive: Their lightweight nature and durability make them suitable for aerospace and automotive applications, where performance and efficiency are critical.
  • Medical Equipment: The biocompatibility and corrosion resistance of silicon nitride make it suitable for medical devices and implants.

 

Advantages Over Other Ceramic Materials

 

When compared to other ceramic materials like alumina oxide and zirconia, silicon nitride offers distinct advantages:

 

  • Mechanical Strength: Silicon nitride is twice as strong as alumina oxide, making it more durable in high-stress applications.
  • Thermal Properties: With a lower coefficient of thermal expansion, silicon nitride is less prone to thermal shock compared to zirconia.
  • Weight: Being lighter than both alumina oxide and zirconia, silicon nitride reduces the load in dynamic applications, enhancing performance and longevity.

 

Insights from Industry Leaders

 

Silicon Nitride Ceramics

 

According to Silicon Nitride Ceramics, silicon nitride balls are equipped with anti-oxidation and corrosion resistance, making them stable in harsh environments. This stability is crucial in applications where the oil film is squeezed out by repeated rolling, such as in high-speed bearings.
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

 

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

 

 

Factory equipment

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).

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter,Trading Company

  • Year Established:

    2017

  • Employee Number:

    80~110

  • Ecer Certification:

    Verified Supplier

Guangzhou Zhongli 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 mil... Guangzhou Zhongli 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 mil...

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  • Guangzhou Zhongli Technology Co., Ltd
  • Room 702A, No. 585, Airport Road, Tangjing Street, Baiyun District, Guangzhou City, Self-compiled 2341
  • https://www.labballmills.com/

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