Sector 9 Ceramic Bearings (8) FYI0F_OX620

Product details:

Size: one color: assorted feature: ceramic ball bearings work to displace heat generated at higher speedsset of 8 bearings including spacersrace grade bearings sector 9 is the original longboard skateboard for the surf, skate and snowboarding lifestyles. Ball black ceramic bearings-silicon nitride ceramic. Extra hard, high density black ceramic balls-lighter than steel. Corrosion resistant, waterproof balls. Removable rubber shield for easy cleaning. Nylon ball retainer with grease/oil mix for speed and longevity. Ceramic does not break down like steel thus eliminating steel debris that normally lead to bearing breakdown. Ceramic balls actually keep the steel races clean due to their extra hard properties by crushing debris and continually polishing the races.