Bionic SWISS 8mm is considered our flagship of our bearing lineup, and for great reason. This is for a set of 16 bearings.Our SWISS is not made in Switzerland nor do we want skaters to think that. "SWISS" bearings were the first bearings recognized in the roller marketplace as premium skate bearings. Since then several manufacturers have developed and engineered bearings to the specification and tolerances of the SWISS manufacturers.Bionic SWISS features deeper grooves, double honed races for smoother, faster and longer lasting bearings and cages made of Delrin®, a DuPont product.Delrin® acetal homopolymer combines lubricity and wear resistance with the stiffness and strength needed in parts designed to replace metal. Chemical resistance to fuels and solvents High fatigue resistance ESD safe and static dissipative High strength and stiffness properties Very low water absorption Another important feature is the materials of which the inner and outer rings as well as the balls are made of. Bionic uses Stainless Steel rings and titanium balls for great corrosion resistance and hardened capabilities that improve speed and longevity. Key elements to these materials is the process of heat treating.All Bionic Bearing are packaged in speed oil so that they are ready to use right out of the package. No need to clean them in order to achieve optimum speeds, nor is there any break-in time.
