Axial test mechanism of bearing

The invention relates to the technical field of bearing test, and discloses an axial test mechanism of a bearing. The mechanism comprises a test unit, a swing assembly and an axial loading assembly; the test unit at least comprises a workbench, an inner ring follow-up assembly and a bearing test tool; the inner ring follow-up assembly at least comprises a bearing seat and a supporting shaft; a pair of inner ring flange-free type cylindrical roller bearings arranged side by side is arranged between the supporting shaft and the bearing pedestal; the outer rings of the inner ring flange-free typecylindrical roller bearings are fixedly arranged relatively to the bearing seat, and the inner rings of the same are fixedly connected to the supporting shaft and axially and movably connected relative to the bearing seat. On the basis of the characteristic of axial displacement and connection relation between the outer rings and the inner rings of the inner ring flange-free type cylindrical roller bearings, an axial push-pull load can be applied to the to-be-tested bearing, and the to-be-tested bearing can swing around the axis in a reciprocating mode; the inner ring of the to-be-tested bearing can swing reciprocally and bear the axial push-pull load without interference; and the structure is simple and conception is ingenious.