Rail transit vehicle bearing real-time detection system

The utility model discloses a real-time detection system for a rail transit vehicle bearing, which comprises a bearing outer ring and a bearing inner ring, the bearing inner ring is nested on the inner side of the bearing outer ring, a retainer is coaxially arranged between the bearing inner ring and the bearing outer ring, and the bearing inner ring is sleeved on the retainer. A plurality of groups of rollers distributed around the bearing inner ring are arranged on the retainer, sealing covers are arranged on the two sides of the bearing outer ring, front covers are arranged on the outer sides of the sealing covers, and temperature sensors extending into the inner side of the bearing inner ring are arranged on the front covers. The beneficial effects are that axle working state information detected by the temperature sensor and the inductive sensor in real time is stored and reported to the monitoring room for analysis, and when the curve change rate of bearing temperature and time or inductance intensity a