Silicon Nitride Bearing Rollers, Si3N4 bearing roller
Silicon nitride is has excellent thermal shock resistance due to the microstructure. The creep and oxidation resistance of Si3N4 is also superior, its low thermal conductivity and high wear resistance also make it an outstanding material that can withstand conditions of most industrial applications. Silicon Nitride ceramic is ideal for bearing rollers.
Silicon Nitride Bearing Rollers Description
|Flexural strength||800 MPa|
|Fracture toughness||6.5 MPa m^1/2|
|Thermal stress parameters||569 K|
Data Sheet & Typical properties of silicon nitride material:
|Type||–||Gas pressure sintered|
|Vickers Hardness||Gpa||18 – 20|
|Thermal Shock Resistance||Δ(°C)||450 – 650|
|Max. Working Temp.||°C||1200|
|Volume Resistivity||Ω ·cm||> 10^14|
|* Tests under room temperature environment;|
* The above information is offered for comparison only. Exact properties will vary depending on the manufacturing method.
Typical properties of silicon nitride ceramics
-High strength over a wide temperature range
-High fracture toughness
-Outstanding wear resistance
-Low thermal expansion and high thermal conductivity
-Good thermal shock resistance
-Good resistance to chemical and oxidation
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Packing of Silicon NitrideCeramics
As a ceramic material, silicon nitride is quite fragile in a lot of cases. Our silicon nitride bearing rollers are carefully handled to minimize damage during storage and transportation. Suitable outer boxes and inner cushioning materials are used for Si3N4products, vacuum packing is also engaged for some of the parts.