SC0893 Silicon Carbide Bearing (SiC Bearing)

Catalog No. SC0893
Material Ceramic
Purity 97%~99%
Density 3.05~3.15 g/cm3

Stanford Advanced Materials (SAM) is a trusted supplier and manufacturer of high quality sintered SiC, reaction bonded SiC and recrystallized SiC. We provide high quality Silicon Carbide Bearing with high purity at competitive prices. Customization is available upon request.

Related products: Silicon Carbide Plate, Silicon Carbide Tube, Silicon Carbide Seal Ring, visit more>>

Silicon Carbide Bearing Description:

Silicon carbide (SiC) is a lightweight ceramic material with high strength properties comparable to diamond. It has excellent thermal conductivity, low thermal expansion, and is resistant to corrosion from acids. Silicon carbide is an excellent ceramic material for applications requiring good erosion and abrasive resistance. Consequently, it is useful in a variety of applications including spray nozzles, shot blast nozzles, and cyclone components.

Silicon carbide is an ideal material for sealing rings and bearings. It has good corrosion resistance, great mechanical strength under high temperatures, and excellent wear resistance. We can supply ring and bearing products made by SiC as well as other SiC parts. Bearings made by other ceramic materials, such as ZrO2 and Si3N4 are also available.

Silicon Carbide Bearing Specification:

 

Value

Inner Diameter (ID)

4~100mm

Outer Diameter (OD)

ID + 5~40mm

Length/Thickness

4~34mm

Material

SiC, ZrO2, Si3N4

Silicon carbide ceramics maintains its high mechanical strength in temperatures as high as 1,400C It has higher chemical corrosion resistance than other ceramics.

SAM offers a complete family of fully dense silicon carbide ceramics materials. These materials have the following key characteristics:

Material Properties Reaction Bonded Silicon Carbide:

Density gm/cc 3.1
Crystal Size (Average) Microns 12
Water absorption (open porosity) % 0
Gas permeability % 0
Color ¯ Black
Flexural Strength (MOR) 20°C MPa (psi x 103)  462 (67)
Elastic Modulus 20°C GPa (psi x 106)  393 (57)
Poisson’s Ratio 20°C ¯  0.20
Compressive Strength 20°C MPa (psi x 103)  2700 (363)
Hardness GPa (kg/mm2)  26 (2500)
  R45N  –
Tensile Strength 25°C MPa (psi x 103)  307 (44.5)
Fracture Toughness K(I c) mpa m1/2  4
Thermal Conductivity 20°C W/m K 125
Coefficient of Thermal Expansion 25-1000°C X 10-6/°C 4.3
Specific Heat 100°C 880 J/kg*K 800
Thermal Shock Resistance   ΔTc  °C 400
 Maximum Use Temperature   °C  1000
Dielectric Strength 6.35mm ac-kV/mm (ac V/mil)  –
Dielectric Constant 1 MHz 25°C  –
Dielectric Loss (tan delta) 1 MHz 25°C  –
Volume Resistivity 25°C ohm-cm  
                            500°C ohm-cm  
                            1000°C ohm-cm  

 

Sintered Silicon Carbide:

Density gm/cc 3.15
Crystal Size (Average) Microns 43169
Water absorption (open porosity) % 0
Gas permeability % 0
Color ¯ Black
Flexural Strength (MOR) 20°C MPa (psi x 103) 480 (70)
Elastic Modulus 20°C GPa (psi x 106)  410 (59)
Poisson’s Ratio 20°C ¯  0.21
Compressive Strength 20°C MPa (psi x 103)  3500 (507)
Hardness GPa (kg/mm2)  26 (2800)
  R45N  –
Tensile Strength 25°C MPa (psi x 103)  –
Fracture Toughness K(I c) mpa m1/2  4
Thermal Conductivity 20°C W/m K 150
Coefficient of Thermal Expansion 25-1000°C X 10-6/°C 4.4
Specific Heat 100°C 880 J/kg*K 800
Thermal Shock Resistance   ΔTc  °C 300
 Maximum Use Temperature   °C  1600
Dielectric Strength 6.35mm ac-kV/mm (ac V/mil)  –
Dielectric Constant 1 MHz 25°C  –
Dielectric Loss (tan delta) 1 MHz 25°C  –
Volume Resistivity 25°C ohm-cm  
                            500°C ohm-cm  
                            1000°C ohm-cm  

 

Silicon Carbide Bearing Applications:

 

Silicon Carbide Bearing Packaging:

Our silicon carbide bearings are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

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