10 Pcs Z2 1/4×1/2×3/16 inch Deep Groove Ball Bearings R188ZZ
Ball Bearings Chrome SteelGeneral Information：[1]Static load rating of 80 newtons and dynamic load rating of 207 newtons[2]R188-2Z bearings are shielded on BOTH SIDES to keep lubricant in[3]Made from Chromium Steel (GCr15), durability and resistance to under heavy loads[4]ABEC Tolerance 1 (P0), Z2 Noise Level for most general use[5]R188ZZ (I.D.=1/4 inch, O.D.=1/2 inch, Thickness=3/16 inch).