Bearing performance testing device

The utility model provides a bearing performance testing device, comprising an execution mechanism used for reciprocating rotation output at a fixed angle; the mounting sleeve is fixed relative to the actuating mechanism in position, and a to-be-detected bearing is mounted in the mounting sleeve; the rotating shaft can be rotationally mounted in the mounting sleeve along the axis of the rotating shaft and is connected with the output end of the executing mechanism; the bearings to be detected sleeve the outer sides of the two ends of the rotating shaft; the radial pressure applying mechanism is arranged on the mounting sleeve and used for applying pressure to the rotating shaft in the radial direction; and the first detection assembly is used for detecting the value of pressure applied to the rotating shaft by the radial pressure applying mechanism. During use, the radial pressure applying mechanism applies pressure in the radial direction, the executing mechanism drives the rotating shaft to rotate in a reci