10-07-2014 дата публикации
Номер: US20140193107A1
A bearing unit having an axis of rotation and provided with a stationary ring and a rotatable ring arranged coaxially with respect to one another, a magnetic encoder fixed onto the inner ring and extending in front of an annular surface of the stationary ring; and a protective cover mounted on the external ring to protect the encoder and close off a space defined between the two rings; an annular channel being formed in the stationary ring and sealing means being arranged between the side wall and the axial lug within the annular channel so as to seal the cover and prevent the infiltration of impurities between the cover and the axial lug. 111. A bearing unit () for a vehicle wheel , the bearing unit () having an axis of rotation (A) and comprising:{'b': 10', '14', '12', '14', '14', '15, 'a radially outer stationary ring () provided with a tubular axial lug (′) delimited by an outer cylindrical surface (), and with a flange () transverse to the axis of rotation (A) and axially delimited, on the side where the axial lug (′) is located, by an axial front surface ();'}{'b': 20', '10', '3, 'a radially inner rotatable ring () defining, together with the stationary ring (), a space ();'}{'b': 30', '20', '3', '14, 'an encoder () fixed onto the inner ring () and extending outside of the space () and in front of the axial lug (′); and'}{'b': 40', '14', '30', '3', '42', '12, 'a protective cover () mounted on the axial lug (′) so as to protect the encoder () and close off the space () and having a side wall () mounted on the outer cylindrical surface (); wherein'}{'b': 10', '16', '15', '17, 'the stationary ring () provides a first shaped annular channel () formed through the axial surface () and delimited axially by a bottom surface (); wherein'}{'b': 18', '18', '42', '14, 'a second annular channel ()(′) is arranged between the side wall () and the axial lug (′); wherein'}{'b': 42', '40', '43', '17', '16, 'the side wall () of the cover () is provided with an edge () arranged ...
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