Ceramic Silicon Carbide U Groove Roller

Full Ceramic Silicon Carbide U Groove Roller bearings can be made in silicon nitride, zirconia or silicon carbide, three kinds in total. You can find those ceramic materials' characteristic at ceramic materials and their properties.

 

TECHNICAL SPECS

 

Material Silicon Carbide (Sic)
Size 40x68x22mm
Accuracy 0.008mm
Highest Temperature 800℃(1472F)
Circular Runout 12um
Perpendicularity 12um
Circularity 10um
Parallelism 15um
Applications Chemicals, aerospace, medicine, environmental protection equipment, electronics industry. Steel industry, the role of shaping steel

 

 

MATERIAL PROPERTIES

 

Performance unit sign Sillicon carbon
Purity SiC content % >99%
Density g/cm3 >3.10
Hardness Kg/mm2 2800
Bending strength Mpa >400
Compressive strength Mpa 3000~3900
Fracture toughness Mpa.m-3/2 4~5
Elastic Modulus Gpa 410
Poisson’s ratio 0.14
Cofficient of thermal expansion X10-6/℃ 4.3
Grain size μm <8
Free silicon content % < 0.5
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