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Sonic 16-Pack Roller Hockey Bearings (CERAMIC)

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  • Ceramic (Si3N4) balls are smoother and rounder than steel balls - less friction and more speed
  • Ceramic balls are harder than steel balls, last up to 10x longer and won't corrode - deep groove races made with premium Japanese SUJ2 chrome steel
  • Ceramic balls are 60% lighter than steel balls and nylon ball retainer is lighter, quieter & faster than a metal cage
  • Labyrinth seal defends against dirt & debris to extend bearing life
  • Pre-lubricated with Sonic Super Gel - remove non-contact rubber seals for easy cleaning

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