Sonic Ceramic Skate Bearings 8mm (16) On the streets or in the rink, Sonic bearings help you skate your best. Built with speed and performance in mind. Smart design and uncompromising quality to keep you rolling. Features: 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 and faster than a metal cage Labyrinth seal defends against dirt and debris - roll longer and smoother Removable non-contact seals for easy cleaning Zero waste packaging doubles as a useful skate parts organiser These bearings are suitable for most current roller skates, blades and inlines. Size: 8mmFit: Most current roller skates and roller derby skates have 8mm axles, some older styles or Roll-Line plates come with 7mm. Most inline skates use 8mm bearings. If you're unsure, contact us. Don't forget! One skate wheel requires 2 bearings (one on either side of the wheel core). 4 wheels require 8 bearings, 8 wheels require 16 bearings. Online only Brand: Sonic
