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Power Bearings Swiss Ceramic 627 is the quad skating version of our top tier Swiss Ceramic bearing, built on a 627 axle instead of the common 608. It is made for quad speed skating and quad long distance racing, where every watt saved matters.

Why skaters choose Swiss Ceramic 627

It uses a high grade Si3N4 hybrid ceramic. According to the manufacturer it is around 50% lighter than steel yet 40% more robust, runs up to 100,000 rpm under load, and saves 0.8 to 1.0 watts per bearing against typical precision steel, which adds up across a full set over a long race. A nylon thermo molded cage positions each ball accurately, and double lumen seals on polished rims give an almost frictionless shield against dust and water. The Si3N4 is cryogenically treated at minus 300 degrees Fahrenheit to refine the structure for efficiency and durability.

Specification

• Balls: Si3N4 hybrid ceramic, cryogenically treated