6205 Fully Silicon Nitride Ceramic Ball Bearings 25x52x15mm

  • $145.80

Light Silicon Nitride Ceramic Ball Bearings

Silicon Nitride (Si3N4) Ceramic Ball Bearings are designed for applications where high loads, high speeds and extreme temperatures are factors.

  • The 6200 Series Deep Groove ball bearings feature deep, honed raceways, resulting in a perfectly balanced bearing suitable for lower to moderate thrust loads in both loading directions.
  • It can be configured for various application speeds and running precision requirements.
  • Silicon Nitride is non-porous, non-magnetic, non corrosive, lighter than steel and, in ball form, is harder than steel.
  • Long life and the need for minimal lubrication make this material appropriate for extreme applications with a service life 2-5 times longer than steel.
  • Ceramic balls are non-porous meaning they are virtually frictionless and are capable of spinning faster than steel balls.


  • Brand: Fushi
  • Model No:6205CE
  • Inner Diameter/Bore (b): 25mm
  • Outer Diameter (D): 52mm
  • Width (B): 15mm
  • Fillet Radius(r); 1mm
  • Materials: Silicon Nitride (Si3N4)
  • Quantity: 1 Piece
  • Surface Roughness: 0.05ra
  • Structure: Deep Groove
  • Coatings: Non-magnetic
  • Density: 3.2g/cm2
  • Fracture Toughness: 6 MPa
  • Heat Resistance: 800°C
  • Three Point Bending Strength: 1 100 MPa
  • Mass: 0.054 kg

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