Sonic Ceramic Bearings

16-Pack (8 Wheels) On the streets or in the rink, our bearings help you skate your best. Built with speed and performance in mind. Smart design and uncompromising quality to keep you rolling. FASTCeramic (Si3N4) balls are smoother and rounder than steel balls – less friction and more speed STRONGCeramic 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 LIGHTCeramic balls are 60% lighter than steel balls and nylon ball retainer is lighter, quieter & faster than a metal cage DURABLELabyrinth seal defends against dirt & debris - roll longer and smoother SERVICEABLERemovable non-contact seals for easy cleaning PACKAGINGZero waste packaging doubles as a useful skate parts organizer RATINGSkate Quality 9 (SQ 9)The ABEC rating system is based solely on tolerances. SQ is based on additional factors that affect bearing performance:• Market - design & features that meet skater needs• Materials -