Bearing with distance sensor and control unit
AssigneeAktiebolaget Skf
InventorFranck Landrieve
Life of this patent
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Abstract
A bearing includes a first ring and a second ring capable of rotating concentrically relative to each other, and at least one distance sensor mounted on the first ring and facing a surface of the second ring to measure radial displacements between the first and second rings. The bearing further includes a control unit connected to the distance sensor and adapted to calculate the value of a deflection of the bearing by subtracting a predetermined value from the value of the relative radial displacement between the first and second rings detected by the distance sensor.
Claims12
A bearing comprising:
- a first ring;
- a second ring, at least one of the first and second rings being configured to rotate concentrically relative to the other one of the first and second rings;
- at least one distance sensor mounted on the first ring and facing a surface of the second ring to measure radial displacements between the first and second rings;
- and
- a control unit connected to the distance sensor and adapted to calculate a value of a deflection of the bearing by subtracting a predetermined value from a value of the relative radial displacement between the first and second rings detected by the distance sensor.
A method for monitoring a bearing in a machine, the bearing including a first ring and a second ring, at least one of the first and second rings being configured to rotate concentrically relative to the other one of the first and second rings, the method comprising the steps of:
- measuring a radial displacement between the first ring and the second ring;
- and
- calculating a value of a deflection of the bearing by subtracting a predetermined value from a value of the measured relative radial displacement between the first and second rings.
Dependencies are inferred from the claim text.