Ceramic Balls

446 Products

Precision Balls

For pump valves, high precision angular contact bearing, dental bearing, optical devices and so on

Non-Precision Balls

For fuel, Chemicals, medical, new energy, grinding

What are Ceramic Balls?

Ceramic balls are a specialized type of ball bearing made from ceramic materials. Ceramic balls have unique characteristics that make them superior to other types of balls for use in industrial applications. They offer excellent hardness, high strength and wear resistance, as well as low electrical conductivity and thermal conductivity. Unlike metal or plastic balls, ceramic balls are resistant to corrosion and can withstand harsh environments without deteriorating.

 

Features of Ceramic Balls

Compared to other types of balls, ceramic balls offer several features. They have a longer lifespan, lower friction, and better resistance to wear and corrosion. They are also lightweight and have a high strength-to-weight ratio, making them ideal for use in high-performance applications.

 

What are Ceramic Balls Used for?

Ceramic balls have a wide range of applications in various industries, such as aerospace, automotive, chemical, and medical. They are commonly used as grinding media, catalyst supports, ball bearings, and cutting tools. Ceramic balls are also used in high-temperature and high-pressure environments.

 

How to Choose Ceramic Balls

When choosing ceramic balls, it's important to consider factors such as material type, size, and grade. Material type will depend on the application, while size and grade will determine the ball's performance. Other factors to consider include surface finish, tolerance, and the presence of defects. For demanding applications that require higher densification, toughness, and compressive strength, HIP Silicon Nitride Balls are an excellent choice.

 

Why LILY Bearing?

LILY Bearing's ceramic balls offer many advantages for industrial applications that make them the ideal choice. Here are a few of the key benefits:

  • High precision: Thanks to advanced manufacturing techniques, LILY Bearing produces ceramic balls with excellent dimensional and geometrical accuracy which ensures greater accuracy during operation.
  • Wide selection: LILY Bearing provides a wide range of ceramic ball options across a variety of sizes. Material options include Silicon nitride (Si3N4), Zirconia (ZRO2), Alumina (Al2O3) and Silicon carbide (SIC) from 0.4mm to just over 115mm in diameter with the most common sizes in between. Precision grades provided are 5, 10, 16, 25 and 100.1.
  • Durability & reliability: Thanks to their high-quality construction, ceramic balls from LILY Bearings are highly durable and reliable. They will stand up to harsh environments without deteriorating or becoming damaged over time.
  • Cost savings: Due to their low weight, ceramic balls from LILY Bearings also offer cost savings as they require less energy for operation compared to other materials.

 

Properties of Ceramic Balls

Mechanical Properties Units
AL2O3
SiC
HIP-Si3N4
GPS-Si3N4
ZrO2
Density
g/cm3(lb/ft3)
3.89(242.8) 3.1(193.5) 3.29(205.4) 3.27(204) 6.04 (205.4)
Porosity %(%) 0(0) 0(0) 0(0) 0(0) 0(0)
Color ivory black black/grey black white
Flexural Strength
MPa (lb/in2x103)
379(55) 550(80) 830(120.4) 689(100) 900(120.4)
Elastic Modulus
MPa (lb/in2x103)
375(54.4) 410 (59.5) 310(45) 310(45) 200(45)
Shear Modulus
GPa (lb/in2x106)
152(22)
Bulk Modulus
GPa (lb/in2x106)
228(33)
Poisson’s Ratio 0.22 0.14 0.28 0.28 0.3
Compressive Strength MPa 2200 3900 3900 3200 2000
Hardness
Kg/m2
1440 2800 1580 1450 1300
Fracture Toughness KIC
MPa•m1/2
4 4.6 7 6-7 13
Maximum Use Temperature(no load) °C(°F) 1750(3180) 1650 (3000) 1000(1830) 1000(1830) 750(1382)
Thermal Conductivity
W/m°K (BTU•in/ft2•hr•°F)
35(243) 120 (830) 30(208) 29(201) 2 (13.9)
Coefficient of Thermal Expansion
10-6/°C (10-6/°F)
8.4(4.7) 4.0(2.2) 3.3(1.8) 3.3(1.8) 10.3 (5.7)
Specific Heat J/Kg•°K (Btu/lb•°F) 880(0.21) 750 (0.18)
Dielectric Strength ac-kv/mm (volts/mil) 16.9(420)    
Dielectric Constant @ 1 MHz@ 1 MHz 9.8(9.8)    
Volume Resistivity ohm•cm
1014
102-106
 
1010