Sold in sets of 16 with no spacers.
- FAST – Ceramic (Si3N4) balls are smoother and rounder than steel balls – less friction and more speed
- STRONG – 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
- LIGHT – Ceramic balls are 60% lighter than steel balls and a nylon ball retainer is lighter, quieter & faster than a metal cage
- LONG LASTING – Labyrinth seal defends against dirt & debris to extend bearing life
- SERVICEABLE – Pre-lubricated with Sonic Super Gel – remove non-contact rubber seals for easy cleaning
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