Bearing gear transmission failure prediction test bench consists of drive motor, 1st stage planetary test gearbox, 2nd stage parallel shaft test gearbox, torque sensor, acceleration sensor, load motor, control cabinet and hydraulic load system. The test bench contains all the configurations required for the full life cycle experiments of bearing gear transmission, and is suitable for the research of dynamic and noise characteristics of bearing gearboxes, health monitoring, life prediction and vibration characteristics based on diagnostic technology, lubrication conditions, wear particle analysis.