C 6801-VV Zero Ceramic Enduro Bike Bearing 12x21x5

C 6801-VV Zero Ceramic Enduro Bike Bearing 12x21x5
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Brand:  Enduro
Measurement Unit:  Metric
Inside Diameter:  12.00mm
Outside Diameter:  21.00mm
Width:  5.00mm
Seals or Shields:  Silicone Non-contact Seals
Clearance:  C3

Availability:  

In stock  

Our Price:  £28.85(Exc. 20% VAT)(£34.62 Inc. VAT)
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Enduro


C 6801-VV Zero Ceramic Enduro Bike Bearing 12.00x21.00x5.00

  • Silicon Nitride (Si3n4) Grade 3 balls
  • Silicone VV type seal
  • Magnetite Rust Proof Finish

Typical applications: Hub Bearings

ZERØ ceramic bearings have ceramic balls and steel races.  The balls are Grade 3, Silicon Nitride (Si3n4).  These are the roundest balls you can buy without a military license.  The races are treated with a black oxide coating, which helps prevent rusting in the bearing. The races are then reground to a mirror finish after this treatment. Finally, they are cryogenically treated for strength before assembly. We also use Silicone VV seals, which is the lightest drag seal available on the market.

Si3N4 balls with 52100 High carbon Chromium Alloy Races with Cryogenic Treatment:
 Cryogenic treatment takes the races down to minus three hundred degree Fahrenheit to normalize the crystalline structure of the material so the races will resist the hardness of the ceramic balls and get the maximum wear potential.

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