Joint bearing axial clearance measuring device

The utility model relates to a joint bearing axial clearance measuring device. The joint bearing axial clearance measuring device is characterized in that the device is composed of a feed system, a measurement system, a fixture system and a rack, wherein the feed system is controlled by a control system; the feed system consists of a left feed system and a right feed system, wherein the left feed system and the right feed system are located at two sides of the fixture system respectively; the measurement system includes a displacement sensor and a dovetail groove slide stage; and the left feed system and the right feed system are driven by servo motors. With the above structure adopted, the device has high precision and high automation degree in axial clearance measurement process.