ROLLER BEARING DEVICE WITH ATTACHED STAY

摘要

The present invention relates to a roller bearing device with an attached stay, and provided with: a rolling bearing (12) having a pair of bearing rings, i.e., an inner ring (12a) and an outer ring (12b), and multiple rotating bodies (12c) interposed between said bearing rings; at least one peripheral component (11) of the roller bearing (12); and a stay (3) which is configured so as to detachably hold a sensor unit (2). The stay (3) comprises a holding unit (3a) for holding the sensor unit (2), and is arranged such that the center of said holding unit (3a) is positioned on the rotational axis O of the rolling bearing (12). By this means, the sensor unit (2) can always be attached to the same position even when repeatedly attached and detached; reproducibility of the measurement results is good and measurement accuracy high; the mounting operation of the sensor unit (2) is speedy; and it is possible to measure a rotating site.