6303 Fully Silicon Nitride Ceramic Ball Bearings 17x47x14mm

  • $134.80

6300 Series 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.

  • Functionally similar to the 6200 series, the 6300 Series is produced with a larger ball complement and heavier races allowing greater radial, thrust and combined load capacity for a given bore size.
  • This single-row ball bearing has deep groove geometry for applications that require high speeds and support both radial and axial loads.
  • 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: 6303 Full Ceramic Si3N4
  • Inner Diameter/Bore (b): 17mm
  • Outer Diameter (D): 47mm
  • Width (B): 14mm
  • Fillet Radius (r): 1mm
  • Materials: Silicon Nitride (Si3N4)
  • Quantity: 1 Piece
  • Surface Roughness: Ra 0.05
  • 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: 0.087kg

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