Patent ID: 11867227
Assignee: MINEBEA MITSUMI IN.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 8:
9. A method for monitoring a bearing, the method comprising:
generating a first distorted waveform based on an output of one resistor of at least two resistors in a rolling bearing, and generating a second distorted waveform based on an output of another resistor of the at least two resistors, the rolling bearing including
an outer ring;
an inner ring disposed coaxially with the outer ring, the inner ring being on an inner peripheral side of the outer ring,
multiple rolling elements disposed between the outer ring and the inner ring, and
a strain gauge configured to detect strain of the outer ring or the inner ring, the strain gauge including the at least two resistors, and the resistors being arranged in a same direction as an arrangement direction of the rolling elements so as to correspond to spacing between rolling elements that are next to each other;

subtracting the second distorted waveform from the first distorted waveform to generate a differential waveform; and
comparing the differential waveform against a reference value to detect a wear state of the rolling bearing.