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Ceramic Si3N4 Bearings for mechanical application

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Supplier - Xiamen Innovacera Advanced Materials Co., Ltd.   

China (Mainland)China (Mainland)

Contact:Chandler Tsai




Ceramic Si3N4 Bearings for mechanical application, ceramic bearings for bikes, Silicon Nitride Bearing


1. Si3N4 Applications & Services

Silicon nitride ceramics is superior to other materials due to its thermal shock resistance.  It does not deteriorate at high temperatures, so it's used for automotive engines and parts for gas turbines, including the turbocharger rotor.


Innovacera offers a complete family of Silicon Nitride materials. These materials have the following key characteristics:

  • Good thermal shock resistance• Creep resistance
  • Low density
  • High fracture toughness
  • High hardness and wear resistance 
  • Electrical resistivity

Ceramic Si3N4 Bearings for mechanical application, ceramic bearings for bikes, Silicon Nitride Bearing


2. Sintered Silicon Nitride Ceramics
SSN is a high purity grade of silicon nitride having a density of approximately 70-80% of theoretical that can be produced in a cost effective manner such as dry pressing, and isostatic pressing, to complex net shapes. SSN has excellent thermal shock resistance and outstanding compatibility with non-ferrous molten metals.  This lower cost alternative to the fully dense silicon nitride grades can be manufactured to close tolerance without the need for expensive diamond grinding.


3. Hot Pressed Silicon Nitride Ceramics
HPSN can be formulated into a variety of compositions having minimal densification aids. HPSN compositions offer the highest strength of silicon nitrides.


    Typical applications:

  • Semiconductor handling parts
  • Wafer processing components
  • Bearing balls and rollers
  • Nozzles

4. Advanced Finishing Services
Innovacera specializes in high tolerance machining, grinding and polishing. Our state-of-the-art equipment allows us to offer a variety of machining services including:

  • Precision grinding and machiningCNC machining and grinding
  • Lapping and polishing
  • Threading


5. Properties of Silicon Nitride Si3N4
General PropertiesMain Component Purity (wt%)90
Density (g/cm3)3.25
Water Absorption (%)0
Mechanical PropertiesBending Strength (MPa)785
Young's Modulus (GPa)285
Vickers Hardness (GPa)16
Thermal PropertiesMax.Operating Temperature (°C)1200
Coefficient of Thermal Expansion (1/°C×10-6)RT~500°C3.5
Coefficient of Thermal Conductivity (W/m×K)13
Thermal Shock Resistance ΔT (°C)650
Electrical PropertiesVolume Resistivity25°C1016
Dielectric Constant10GHz8.3
Dielectric Loss (×10-4)25
Q Factor (×104)0.04
Dielectric Breakdown Voltage (KV/mm)14

3. More about us:


Innovacera can supply many kinds of ceramic parts according to the customers' differents requirements. Our products include the ceramic plunger, ceramic plunger pump, ceramic rod, ceramic shaft, ceramic piston, ceramic water valve sheet, ceramic pipe sleeve, ceramic loom plunger, ceramic seal ring, special shape ceramic, ceramic knife etc.


Manufacturing OptionsAdvanced Finishing Services

Injection molding

Precision grinding and lapping
Roll compactingLaser machining
ExtrudingEngineering design and support
Isostatic pressingCeramic-to-metal brazing
Dry pressingSpecialized coatings
Hot pressingThreaded components
Tape castingPrecision motion components
Slip castingComplex clean room assemblies


Our own factory: located in Zhangzhou, Fujian - one hour drivie from Xiamen


Certifications: ISO 9001-2008, ISO14001-2004, OHSHS 18001-1999

Export office: located in the special economic zone - Xiamen


Other popular products:


Welcome to visit us, if you have any demand or inquiry, please feel free to contact us!


Ceramic Si3N4 Bearings for mechanical application, ceramic bearings for bikes, Silicon Nitride Bearing

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