SC0910 Silicon Nitride Bearing Balls

Catalog No. SC0910
Size Diameter: 1~30mm
Material Si3N4 Ceramic
Purity 97%~99%
Density 3.44g/cm3

Silicon Nitride Bearing Ball is ideal for bearing parts. Stanford Advanced Materials (SAM) is a leading supplier of Silicon Nitride Bearing Balls with competitive prices and great delivery time. Feel free to contact us for customized products.

Related Products: Silicon Nitride Nozzles, Nozzle Covers, Silicon Nitride Forming Rollers, Silicon Nitride Bearings Rollers, Silicon Nitride Welding Pins.

Silicon Nitride Bearing Ball Description

Silicon Nitride Bearing Ball is a man-made compound synthesized through several different chemical reaction methods. Parts are pressed and sintered by well-developed methods to produce a ceramic with a unique set of outstanding properties. Silicon Nitride Bearing Ball is ideal for bearing parts. Compared with steel, high-performance Silicon Nitride Bearing Balls have better mechanical properties under high temperatures and could survive from most of the corrosive chemicals.

Silicon Nitride Bearing Balls

Si3N4 Ceramic and Steel for Bearing Balls Comparison

  Si3N4 Steel
Working temperature 800 ℃ 180 ℃
Density 3.21g/cm3 7.8 g/cm3
Thermal expansion coeff. 3.4×10-6 K-1 12.5×10-6 K-1
Hardness, HV 1500 About 750
Young's Module 320GPa 208GPa
Corrosion resistance Good Poor
Thermal conductivity Poor Good
Magnetism No Yes
Wear resistance Excellent Good

Silicon Nitride Bearing Ball Specifications

GPSN

Property   Unit
Color Grey  
Mechanical Properties    
Density 3.21 g/cm3
Compressive Strength 3000 MPa
Flexural Strength 800 MPa
Weibull-Modulus m 15  
Fracture Toughness KIc 6.5 MPa m^1/2
Young‘s Modulus E 320 GPa
Poisson Ratio 0.28  
Hardness Vickers (HV 1) 16 GPa
Thermal Properties
Maximum Temperature
Inert Gas 1200 °C
Air 1100 °C
Thermal Conductivity 25  
@ 20°C 28 W/mK
@ 1000 16 W/mK
Thermal Expansion
20–100°C 2 10-6/K
20–1000°C 3.5 10-6/K
Thermal Shock parameter R1 600 K
Thermal Shock parameter R2 15 W/mm
Electrical Properties
Resistivity at 20°C 10^12 Ωcm
Resistivity at 800°C 10^7 Ωcm
Dielectric constant 6 1 MHz

 

Silicon Nitride Bearing Ball Applications

Compared with steel, high-performance Silicon Nitride Bearing Balls have better mechanical properties under high temperatures and could survive from most corrosive chemicals. As the price of ceramic materials decreased, Silicon Nitride Bearing could have more applications. 

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