1x Racing Quality Go Kart Bearing SB210ZZ C3 With High Speed PS2 Grease 50mm x 90mm Bearing Details: SB210ZZ-Kart bearing ID: (mm): 50mm OD: (mm): 90mm This bearing has a free spinning ZZ non-contact shield with high speed PS2 grease PS2 high precision grease has high grade synthetic oil as a base, as well as thinners and special additives It is excellent wear and corrosion resistant with service life characteristics This product is suitable for high-speed, low temperature machinery use. Perfect for racing! All parts need to be fitted by a licensed Technician Premium bearings made from premium alloy steel to provide superior fatigue life and reliability Precise heat treatment, dimensions and surface finish contributes to reliable bearing performance Each component undergoes ACCOR's rigorous testing to ensure quality standards