➤MR85-2RS Double seals prevents impurities from enter to keep lubricant. ➤Made of strong and durable chrome steel,durability and resistance to under heavy loads. ➤MR85-2RS (I.D.=5mm, O.D.=8mm, Thickness=2.5mm) ➤ABEC Tolerance 1 (P0), Z2 Noise Level for most general use. ➤Static load rating of 72 newtons and dynamic load rating of 185 newtons,bearings simple and efficient choice.