ROLLING BEARING UNIT WITH SENSOR AND BEARING INFORMATION COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a rolling bearing unit with a sensor capable of solving a problem such as complexity of cable processing or cable breaking. SOLUTION: The sensor device 2 is provided with a transmission part transmitting information from the sensor 11 by radio, and a sensor circuit 12 including a control part 21 controlling the transmission part and a reception device 31 composed separately from a bearing such that the transmission part and the reception device 31 communicate with each other when the transmission part and the reception device 31 can communicate with each other. The transmission part has a transmission/reception coil 24 executing transmission to the reception device 31 and electromagnetically coupling to the reception device 31 to receive an electrical signal. COPYRIGHT: (C)2003,JPO