High Quality Steel Precision Bearings
Ceramic: Ceramic Bearings, Made From A Compound Called Silicon Nitride, Are Smoother And Harder Than Their Steel Counterparts And Less Affected By Heat Energy. This Means Much Less Friction To Begin With (These Bearings Have Little Need For Lubricant); However, Should Friction Occur, The Ceramic Material Doesn’T Expand, So There Is No Effect On The Skateboard’s Performance.
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