173110 Hybrid Ceramic Bearing 17x31x10mm Bicycle Bottom Brackets and Spares 173110RS Si3N4 Ball Bearings?1PC?

WHAT IS A HYBEID CERAMIC BEARING? A ceramic hybrid bearing is a combination of ceramic balls and bearing quality steel rings. Which combine hardened steel rings with rolling elements made of high-performance ceramic materials, are an increasingly popular option for demanding applications.    TECHNICAL SPECS Model: 173110-2RS Structure: Deep Groove Ball Material: Hybrid Ceramic Bore Dia (d): 17 mm Outer Dia (D): 31 mm Width (B): 10 mm Closures: Rubber Sealed (2RS) Lubrication: Grease Clearance: C0 Dynamic Load Rating (Cr) (Newtons): 4233 Static Load Rating (Cor) (Newtons): 2450 Weight: 0.025 kg Quantity: 1 Lot = 1 PC