Skip to product information
1 of 2


Silicon Carbide Bearing, SiC Bearing

Silicon Carbide Bearing, SiC Bearing

Silicon Carbide (SiC) Bearing is a high-performance mechanical component that is commonly used in various industries to support rotating machinery. SiC Bearings are made of silicon carbide material, which is a high-strength ceramic material that offers excellent hardness, wear resistance, and thermal shock resistance.

SiC Bearings have a number of benefits over traditional bearing materials like steel or bronze, including their ability to withstand extreme temperatures and pressures, their resistance to corrosion and abrasion, and their low coefficient of thermal expansion, which reduces the risk of damage to the bearing due to thermal stress.

SiC Bearings are commonly used in applications where high-performance bearings are required, such as chemical processing, oil and gas production, power generation, and semiconductor manufacturing. They are available in a variety of shapes and sizes to fit different types of machinery, and they can be customized to meet specific application requirements.

SiC Bearings are known for their high durability and long lifespan, making them a cost-effective choice for applications that require high-performance, long-lasting bearings. They are also resistant to many types of chemicals, making them an ideal choice for corrosive environments.

Overall, SiC Bearings are an excellent choice for applications that require high-performance, long-lasting bearings that can withstand extreme conditions and provide reliable operation.


Silicon Carbide Ceramics Properties

Compound Formula SiC
Molecular Weight 40.1
Appearance Black
Melting Point 2,730° C (4,946° F) (decomposes)
Density 3.0 to 3.2 g/cm3
Electrical Resistivity 1 to 4 10x Ω-m
Poisson's Ratio 0.15 to 0.21
Specific Heat 670 to 1180 J/kg-K

Silicon Carbide Ceramics Specification

CAS#: 409-21-2, Not Hazardous
Powder, F.W. 40.10, m.p. 2700 °C, Spec. Gravity 3.217 gm/cm3
Item No. Description Purity Lot Size
CB14-85 Silicon Carbide Powder
Particle Size:18, 30, 40 or 200 mesh
> 85 %
F.C. < 2.5%, Fe2O3 < 2%, Al2O3 < 1.2%
CB14-90 Silicon Carbide Powder
Particle Size:18, 30, 40 or 200 mesh
> 90 %
F.C. < 1.5%, Fe2O3 < 1.2%
CB14-98 Silicon Carbide Powder
Particle Size:18, 30, 40 or 200 mesh
> 98 %
F.C. < 0.6%, Fe2O3 < 0.7%

Silicon Carbide Ceramics Applications

Until the invention of boron carbide in 1929, silicon carbide was the hardest synthetic material known. It has a Mohs hardness rating of 9, approaching that of a diamond. In addition, SiC crystal has fracture characteristics that make them extremely useful in grinding wheels and in abrasive paper and cloth products.

Its high thermal conductivity, together with its high-temperature strength, low thermal expansion, and resistance to chemical reaction and thermal shock, makes silicon carbide valuable in the manufacture of high-temperature bricks and other refractories.

SiC ceramic is also classed as a semiconductor, having an electrical conductivity between that of metals and insulating materials. This property, in combination with its thermal properties, makes SiC a promising substitute for traditional semiconductors such as silicon in high-temperature applications.

Silicon Carbide Bearing Specifications

Inner Diameter (ID) 4~100mm
Outer Diameter (OD) ID + 5~40mm
Length/Thickness 4~34mm
Material SiC, ZrO2, Si3N4

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


We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.



View full details

Contact form