Bearing dismounting and mounting device

The utility model discloses a bearing dismounting and mounting device which comprises a base, a bolt column arranged at the top of the base, and threads arranged on the outer surface of the bolt column; the rotating nut is in threaded connection with the outer surface of the bolt column; the tensioning block is installed on the base in a sliding mode, and when the rotating nut is screwed, the rotating nut can make partial contact with the tensioning block and push the tensioning block to move in the radial direction of the bolt column, so that the outer edge of the tensioning block protrudes out of the outer edge of the base. The bearing outer ring dismounting tool is simple in structure, low in cost and capable of rapidly dismounting the bearing outer ring in a narrow space, time and labor are saved during dismounting, and maintenance efficiency is greatly improved. 本实用新型公开了一种轴承拆装装置，包括：底座，顶部设置有螺栓柱，螺栓柱的外表面设有螺纹；旋转螺帽，与螺栓柱的外表面螺纹连接；张紧块，滑动安装于底座上，当旋紧旋转螺帽时，旋转螺帽能够与张紧块部分接触，且推动张紧块沿螺栓柱的径向移动，以使张紧块的外边缘突出于底座的外边缘。本实用新型其结构简单