Sensor mounting cover for a rolling-contact bearing
A sensor mounting cover is for a rolling-contact bearing and includes a transverse wall and an axial projection joined to the transverse wall and provided with a through-seat for housing a sensor. The sensor faces the bearing from a window defined by an inner edge of the seat and a closure element is associated with the axial projection and is arranged at least around the inner edge so as to close the window.
1. A sensor mounting cover for a rolling-contact bearing comprising:
a transverse wall arranged transversely with respect to an axis, a cylindrical wall joined to the transverse wall extending around the axis so as to form a recess with the transverse wall;
an axial projection attached to the transverse wall and being provided with a through seat configured to house a sensor, the seat being bounded axially by an outer inlet edge for the sensor and an inner edge defining a window to allow the sensor to face the bearing; and
the cover comprising a closure element joined to the axial projection and disposed at least around the inner edge of the seat so as to close the window;
wherein the closure element defined by a cup-shaped body and comprises a cylindrical lateral wall, the wall being partially recessed into the axial projection and a membrane attached to the cylindrical lateral wall adjacent to the inner edge so as to separate the seat completely from the bearing to prevent ingress of impurities into the bearing, and wherein the axial projection extends from the transverse wall axially on the opposite side to the recess.
2. The cover as recited in claim 1 wherein the closure element is formed of a nonmagnetic material.
3. The cover as recited in claim 1 wherein the closure element is formed of a waterproof material.
4. The cover as recited in claim 1 wherein the closure element is formed of at least one of a textile material and a plastic material.
5. The cover as recited in claim 3 wherein the closure element is molded at least with the axial projection.
6. The cover as recited in claim 3 wherein the closure element includes a fixing means for fixing the lateral wall into the axial projection.
7. The cover as recited in claim 5 wherein the a fixing means include at least one through hole extending through the lateral wall.
8. The cover as recited in claim 5 wherein the cylindrical lateral wall has a thickness, the thickness having a value less than the value of the thickness of the cylindrical wall defining the seat, and is partially recessed into the cylindrical wall.