4Pc Z2 20x27x4mm Deep Groove Ball Bearings Double Sealed Chrome Steel Seal
Ball BearingsProduct Details1.Made from Chromium Steel (GCr15), durability and resistance to under heavy loads2.6704 2RS bearings are sealed on BOTH SIDES to keep lubricant in3.6704-2RS (I.D.=20mm, O.D.=27mm, Thickness=4mm)4.ABEC Tolerance 1 (P0), Z2 Noise Level for most general use5.Static load rating of 722 newtons and dynamic load rating of 1010 newtons.