Support assembly for food applications having an improved seal

A support assembly comprising:

• a casing comprising:
• a front edge defining an opening;
• and
• a radially external lateral surface comprising an annular seat, the annular seat comprising:
• an annular groove axially spaced from the front edge of the casing and connected to a number of axial grooves that interrupt radially at least part of the front edge of the casing;
• and
• a cover comprising an annular coupling portion that extends toward the radially external lateral surface of the casing, the annular coupling portion comprising:
• at least one pair of teeth formed on a radially inside surface of the annular coupling portion and projecting radially inward, wherein each pair of teeth is spaced circumferentially from each other;
• and
• a plurality of radially internal projections,
• wherein,
• the annular seat of the radially external lateral surface of the casing is configured to receive the teeth of the cover,
• the number of axial grooves is equal to a number of teeth on the cover,
• a bottom wall of the annular groove comprises a plurality of depressions alternating with a plurality of projections, the plurality of projections being arranged circumferentially offset with respect to the axial grooves,
• the plurality of radially internal projections engage with the radially external lateral surface of the casing along a circumferential portion free of axial grooves when the cover is mounted on the casing, and
• the plurality of radial internal projections engage with corresponding depressions in the annular groove of the casing when the teeth engage with the annular groove.