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Silicon Nitride Si3N4 Ceramic Roller

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Silicon Nitride Si3N4 Ceramic Roller

4*5mm ceramic roller are produced with Si3N4 material ,we can produce with G2 Grade for you ,customized size are welcome .

  • item no.:

    4mm
  • lead time:

    7 days after confirm order
  • shipping port:

    Ningbo ,Shanghai,Guanzhou
  • color:

    black
  • MOQ:

    50
products details

Si3N4 Cylindrical Rollers Specification:

Material: SI3N4

Diameter :4mm with tolerance (0~ -0.002)

Length: 5 mm with tolerance (0~ -0.18)

Grade: G2

radius :0.3

Silicon Nitride ceramic

Silicon Nitride Material Features:

High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.

 Ceramic Roller

Silicon Nitride  Data For Your Reference :

Properties of Silicon Nitride (Si3N4) Ceramics
 Item  Unit  Typical Values
 Physical Properties
Density g/cm3 >3.2
 Mechanical Properties
 Rockwell Hardness   HRA90
Vickers Hardness (Hv50) HV0.5 >1550
Modulus of Elasticity Gpa 290
 Flexural Strength Mpa >600
Compressive Strength Mpa 2500
 Fracture toughness Mpam1/2 >6.0
 Thermal Properties
 Maximum use temperature °C 1200
 Thermal Conductivity W/(m.k) 15-20
 Thermal Expansion Coefficient 10-6/°C >3.1
 Thermal Shock Resistance T°C 500
 Specific Heat Capacity KJ/kg.K 700
 Electrical Properties
Dielectric Strength KV/mm 1
 Dielectric Constant Er  
Volume Resistivity at 20°C Ω.cm 1.0X1012


Si3N4 Ceramic Roller

Application of Si3N4 Ceramic Roller :


  1. Balls for check valves and Hybrid Ball bearing

  2. Cylinderical rollers for Hybried Roller Bearing and Fuel Pumps

  3. Cam Rollers for Engines and Fuel Pumps

Machinery, electronic, semiconductor, chemical, petroleum, smelt.

Specific application: Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.


For Ceramic Material :

We provide alumina ceramic, zirconia ceramic, silicon nitride (Si3N4) ceramic, macor (mica glass ) ceramic, aluminum nitride (AIN) ceramic, silicon carbide (SiC) ceramic, boron nitride (BN) ceramic, quartz ceramic, mullite ceramic, cordierite ceramic etc.





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