Item: S688ZZ Structure: Deep Groove Material: 440C Stainless Steel ( prefix "S" ) Bore Dia (d): eight mm Outer Dia (D): 16 mm Width (B): five mm Closures: Metal Shielded Lubrication: Grease Magnetic: little Hardness: 58HRC Corrosion Resistance: General Clearance: C0 Grades: ABEC-7 Dynamic Load Rating (Cr) (Newtons): 1064 Static Load Rating (Cor) (Newtons): 474 Ball Qty: 10 Ball Dia (Dw): 2.000 mm