Item:6900RS Structure: Deep Groove Material: Bearing Steel GCr15 Bore Dia (d): 10 mm Outer Dia (D): 22mm Width (B): 6 mm Closures: Rubber Shielded Lubrication: Grease Magnetic: little Hardness: 58HRC Corrosion Resistance: General Clearance: C0 Grades: ABEC-7