Sealing device for a wheel-hub unit and wheel-hub unit equipped with such a sealing device
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United States of America Patent
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Oct 15, 2019
Grant Date -
Jun 20, 2019
app pub date -
Jul 5, 2018
filing date -
Dec 18, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
Sealing device for a wheel-hub unit provided with a rolling bearing and having a central axis and being provided with a screen joined together with an outer ring of the bearing to sealingly isolate the bearing and having a cylindrical mounting wall coaxial with the central axis and engaged with a collar of an outer ring of the bearing, and an annular reading wall, arranged transversely with respect to the axis, connected to the cylindrical wall and facing a phonic wheel mounted inside the bearing; the annular reading wall having a thickness variable radially depending on an angle of oscillation of the phonic wheel between an undeformed position. An annular front surface of the phonic wheel is equidistant from a plane perpendicular to the axis, and a possible deflected position, in which the annular front surface of the phonic wheel is arranged equidistant from an annular reading wall.
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