EW22330MB 2RS Sealed Sperical Roller Bearings - bearing unit with special seals, that help the bearing to be protected from Dust, Moisture and Contamination. Bearing is filled in with special grease, that gurantees smooth operation of the bearing in dirty environment. This design provides the increase of bearing's lifetime by 4 times. Bearing’s construction has the European Union patent number 007700380-0001.
Certificate for registration [PDF]