Rolling bearing unit with sensor
AssigneeNsk Ltd.
InventorsYukio Sato, Shigeru Endo
Life of this patent
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Abstract
A four-row cylindrical roller bearing is incorporated into between the inner peripheral surface of a housing and the outer peripheral surface of a backup roller. A sensor unit 7 is held in a portion of a collar disposed in the axial-direction end portion of the four-row cylindrical roller bearing. The sensor unit comprises a detect part for detecting temperatures and vibrations and a transmitter device for transmitting signals, which are obtained after output signals taken out from the detect part are processed, as radio signals. On a portion of a hold cover which is a separate member from the collar, there is disposed a receive antenna which is part of a receiver apparatus for receiving the radio signals transmitted by the transmitter device.
Claims18
A rolling bearing unit with a sensor, comprising:
- an outer ring and an inner ring, one of the outer and inner rings being a rotary ring and the other being a fixed ring, and the outer and inner rings being rotatable with respect to each other;
- a plurality of rolling elements rollably interposed between an outer raceway formed in an inner peripheral surface of the outer ring and an inner raceway formed in an outer peripheral surface of the inner ring;
- and
- a sensor unit having a detecting part for detecting at least one of temperature and vibration of a rolling bearing including the rolling elements,
- a memory recording output signals taken out from the detecting part, signals obtained after the output signals are processed and items to be managed with respect to the rolling bearing including an identification mark of the respective rolling bearings,
- wherein the memory of the sensor unit is electrically connected via an interface section to a connector which is provided on a hold cover of the rolling bearing unit.
Dependencies are inferred from the claim text.