Ceramic Sleeve

Ceramic Sleeve Bearing
TECHNICAL SPECS
Material Silicon Nitride (Si3N4)
Color Black
Size 15x25x30mm
Accuracy 0.008mm
Maximum Temperature 800℃(1472F)
Circular Runout 15um
Perpendicularity 15um
Circularity 12um
Parallelism 20um
Applications Chemicals, aerospace, medicine, environmental protection equipment, electronics industry, and medicine flow control valves
RoHS Compliant
MATERIAL PROPERTIES
Ingredients Aluninum (Al) 2.0~3.5%
Yttrium (Y) 4.0~5.0%
Titanium (Ti) 1.0~1.5%
Oxygan (O) 4.5~6.0%
Carbon(C) 0.3~0.8%
Other impurities less than 0.1%
The rest is silicon nitride
Density(g/cm3) ≥3.20
Hardness(Hv) 1400~1600
Bending strength(Mpa) >800
Compressive strength(Mpa) >4000
Elastic Modulus(Gpa) 300~315
Fracture toughness(Mpa.m1/2) 6~8
Cofficient of thermal expansion(10-6/℃) 2.2~3.0
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