The utility model discloses a bearing fitting device for
rail transit. The bearing fitting device comprises a main frame, a lifting mechanism, a tensioning mechanism, a descending mechanism, a positioning mechanism and a
control unit, a descending mechanism is mounted on the bottom surface of the working table, and a lifting mechanism, a tensioning mechanism and a positioning mechanism are sequentially arranged from top to bottom; and the
control unit is used for controlling the lifting mechanism, the descending mechanism, the tensioning mechanism and the positioning mechanism. When the lifting mechanism works, the tensioning sleeve is driven to stretch into the middle of the bearing inner
assembly, the tensioning air cylinder works to enable the tensioning sleeve to be tensioned towards the two sides, then the lifting mechanism is started again to lift the upper side part of the bearing inner
assembly, and then the descending mechanism is controlled to enable the jacking disc and the lower side part of the bearing inner
assembly to move downwards and descend to the position below a working table top. And then the worker pushes the bearing outer ring to the positioning mechanism and controls the lifting air cylinder to descend and the jacking air cylinder to ascend again, so that the upper part and the lower part of the bearing inner assembly are respectively put into the bearing outer ring, and the fitting operation is completed.