Abnormality diagnosis device, bearing, rotation device, industrial machine and vehicle

摘要: There is provided an abnormality diagnosis device, a bearing, rotation industrial machine, and vehicle, which are able to discover early also set threshold relatively easily. A differential value between initial frequency component actual measurement calculated, the compared threshold, for target carried out based on comparison result, where feature of in extracted from vibration measured at timing while axle rotating setting speed during operation that or later device.