Bearing testing machine

The utility model discloses a bearing testing machine which comprises a rotating shaft, a bearing traction assembly and a driving assembly, the rotating shaft can be rotatably assembled on a rack, the driving assembly drives the rotating shaft to rotate, and the rotating shaft penetrates through an inner ring of a bearing to be tested and is in close fit with the inner ring so as to drive the bearing to be tested to rotate. The bearing traction assembly comprises a traction seat and a bearing traction device, the to-be-tested bearing is detachably mounted on the traction seat, and the bearing traction device is used for providing tensile force in the radial direction of the rotating shaft to the to-be-tested bearing during testing. When the bearing testing machine is used for testing, the driving piece drives the rotating shaft to rotate, the bearing traction device provides tensile force along the radial direction of the rotating shaft to the to-be-tested bearing for testing, and the bearing testing machine