SI3N4 Ceramic Ball Bearings for Skateboards
Z2V2 grade bearings.
Black Silicon Nitrid Balls.
608/2RS (Dual sealed shields).
Full chrome inner / outter rings.
Nylon 66 retainer & shields.
Certified low noise & vibration.
Si3N4 silicon nitride ceramic bearings are lightweight, high strength and low wear. They are used in aerospace engineering.
Scope of delivery: 4 ball bearings