Patent ID: 7665372

Claim:
A rolling bearing device with a sensor comprising: an outer ring having a raceway surface on an inner circumference side thereof; an inner ring having a raceway surface on an outer circumference side thereof; rolling elements interposed between the raceway surface of the outer ring and the raceway surface of the inner ring; and a strain sensor mounted on a circumferential surface of the outer ring or a circumferential surface of the inner ring, the strain sensor having a conductive interconnection line having a plurality of thin-line shaped high-resistance portions made of metal thin film and being formed on an insulative film, the insulative film being formed in a band shape having a length generally equal to an entire circumferential length of the circumferential surface of the outer ring or the circumferential surface of the inner ring and wrapped around the circumferential surface of the outer ring or the circumferential surface of the inner ring, the conductive interconnection line being affixed to the insulative film, and the plurality of thin-lined shaped high-resistance portions are arranged substantially at even intervals circumferentially along an entire length of the insulative film.