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Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Specifications
Brand Name :
Zhongli
Model Number :
SNB-01
Certification :
CE ISO
Place of Origin :
China
MOQ :
1kg
Payment Terms :
L/C,T/T,Western Union
Supply Ability :
50-200 ton/month
Delivery Time :
within 15days
Packaging Details :
barrel
Surface :
Polishing Finish
Electrical Insulation :
Excellent
Thermal Expansion Coefficient :
3.2 x 10^-6 /K
Corrosion Resistance :
Excellent
Type :
silicon nitride bearings
Max Operating Temperature :
1200°C
Material :
Silicon Nitride
Density :
3.2 g/cm3
Wear Resistance :
High
Shape :
Spherical
Usage :
silicon nitride bearings
Applications :
High-precision bearings, valves, pumps, and other mechanical components
Thermal Conductivity :
20 W/mK
Chemical Inertness :
High
Surface Finish :
Ra 0.1-0.2 μm
Description

Product Description

Ultra-Low Wear Si3N4 Balls Extend Bearing Lifespan 10X Over Steel

In the world of engineering and machinery, the quest for efficiency, longevity, and performance is never-ending. One of the most significant advancements in this field is the development of ultra-low wear Si3N4 balls, which have been proven to extend bearing lifespan 10 times over traditional steel bearings. This breakthrough is not just a leap in technology but a revolution that promises to transform industries reliant on high-performance bearings.

What Are Si3N4 Balls?

Silicon nitride (Si3N4) balls are a type of ceramic bearing ball known for their exceptional mechanical properties. Unlike steel balls, Si3N4 balls are lightweight, incredibly hard, and resistant to high temperatures and corrosion. These characteristics make them ideal for applications in demanding environments such as aerospace, military, and high-speed machinery.

Key Features of Si3N4 Balls

  • High Heat Resistance: Silicon nitride balls can withstand temperatures up to 1800°F, making them suitable for high-temperature applications.
  • Low Friction: The smooth surface of Si3N4 balls ensures minimal friction, reducing wear and increasing efficiency.
  • Corrosion Resistance: These balls are resistant to most chemicals, making them ideal for use in corrosive environments.
  • Lightweight: Si3N4 balls are 60% lighter than steel, reducing centrifugal force during operation and allowing for higher speeds.

Advantages Over Steel Balls

1. Enhanced Longevity

One of the most compelling reasons to choose Si3N4 balls over steel is their longevity. The ultra-low wear characteristics of silicon nitride mean that bearings last significantly longer, reducing the need for frequent replacements and maintenance. This longevity translates to lower operational costs and increased uptime for machinery.

2. Superior Performance in Extreme Conditions

In high-temperature environments, steel balls can expand and degrade, leading to reduced performance. Si3N4 balls, however, maintain their structural integrity even in extreme heat, making them ideal for applications like gas turbines and automotive engines.

3. Reduced Weight and Improved Efficiency

The lightweight nature of Si3N4 balls means less energy is required to move them. This reduction in weight not only improves efficiency but also reduces the load on machinery, leading to longer service life and lower energy consumption.

4. Electrical Insulation

Si3N4 balls are electrically non-conductive, which prevents electrolytic corrosion in electric motors and generators. This property is particularly beneficial in applications involving electric and autonomous vehicles, where maintaining the integrity of the magnetic field is crucial.

Applications of Si3N4 Balls

Silicon nitride balls are increasingly becoming the material of choice in various industries due to their unique properties. Here are some of the key applications:

  • Aerospace: Used in aircraft engines and other high-speed applications where weight reduction and durability are critical.
  • Military and Defense: Ideal for high-impact environments and applications requiring superior mechanical properties.
  • Automotive: Used in engines and other components to enhance performance and reduce maintenance.
  • Semiconductor Manufacturing: The non-magnetic properties of Si3N4 balls make them suitable for environments with magnetic fields.
  • Electric Vehicles: Their insulating properties make them ideal for use in electric motor bearings, preventing premature failure due to electrolytic corrosion.

Cost Considerations

While Si3N4 balls are more expensive than steel, their longer lifespan and reduced maintenance requirements often offset the initial cost. Industries that demand high performance and reliability find the investment in silicon nitride balls to be cost-effective in the long run.
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

Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media LightweightPolished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight

●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

Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight

Exhibition & Partner

Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight

Case

Ship to South Korea

Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media LightweightPolished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight

Ship to Spain

Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media LightweightPolished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight

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).

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Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight

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Product Detail
Brand Name :
Zhongli
Model Number :
SNB-01
Certification :
CE ISO
Place of Origin :
China
MOQ :
1kg
Payment Terms :
L/C,T/T,Western Union
Contact Supplier
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight
Polished Si3N4 Ceramic Media Balls Lead Ball Mill Media Lightweight

Guangzhou Zhongli Technology Co., Ltd

Verified Supplier
1 Years
guangzhou
Since 2017
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
Planetary Ball Mill Machine, Stirred Ball Mill, Roller Ball Mill
Employee Number :
80~110
Certification Level :
Verified Supplier
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