Bearing unit with protection disc

A bearing unit, comprising:

• a radially outer ring configured to be stationary during use of the bearing unit;
• a radially inner ring configured to rotate during use of the bearing unit with respect to a rotation axis (X), the radially inner ring configured to be fixed to a rotating shaft for rotation therewith;
• a row of rolling bodies interposed between the radially outer ring and the radially inner ring;
• a casing for housing the radially outer ring and the radially inner ring;
• a sealing device;
• protection element configured for protecting the sealing device, the protection element comprising a one piece construction comprising a plastic or composite material, the protection element disposed axially external with respect to the sealing device in a seat of the casing, the protection element defining a radial distance (d2) between a radially internal surface of the protection element and the radially inner ring ranging between about 0.75 mm and about 0.95 mm such that the protection element is configured to block external contaminants without making contact with the radially inner ring;
• wherein the protection element comprises at least one radially external pocket which protrudes in an axially external direction and comprises a recess which is configured to allow the insertion of an extractor tool to be used for the process of disassembly of the protection element from the casing.

A bearing unit, comprising:

• a radially outer ring configured to be stationary during use of the bearing unit;
• a radially inner ring configured to rotate during use of the bearing unit with respect to a rotation axis (X), the radially inner ring configured to be fixed to a rotating shaft for rotation therewith;
• a row of rolling bodies interposed between the radially outer ring and the radially inner ring;
• a casing for housing the radially outer ring and the radially inner ring;
• a sealing device;
• protection element configured for protecting the sealing device, the protection element comprising a one piece construction comprising a plastic or composite material, the protection element disposed axially external with respect to the sealing device in a seat of the casing, the protection element defining a radial distance (d2) between a radially internal surface of the protection element and the radially inner ring ranging between about 0.75 mm and about 0.95 mm such that the protection element is configured to block external contaminants without making contact with the radially inner ring;
• wherein the protection element comprises at least one radially external pocket which protrudes in an axially external direction and comprises a recess which is configured to allow the insertion of an extractor tool to be used for the process of disassembly of the protection element from the casing.