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