Bearing with lubricating function

The bearing with the lubricating function comprises a bearing sleeve, two installation blocks are fixedly installed on one side of the outer portion of the bearing sleeve, sliding plates are installed in the two installation blocks in a sliding mode, and knobs are connected to one sides of the outer portions of the two installation blocks in a threaded mode. After the bearing with the lubricating function is mounted, the knob is loosened, so that the sliding plate can slide in the mounting block, the position of the sliding plate is changed through the fixing plate, then the position of the brush is changed, the brush can be in contact with the coaxial joint of the bearing, the knob is locked at the moment, and when the shaft rotates, the brush can slide in the mounting block. The brush effectively brushes away dust attached to the surface of a shaft, the situation that the dust enters a bearing, consequently, the bearing is blocked, and the service life of the bearing is shortened is effectively avoided, the