The present invention relates to a bearing device including a body formed
with an inner groove that does not communicate with the shaft hole of the
body. Thus, when the rotation shaft is rotated, the lubricating oil may
lubricate the rotation shaft, and may flow back to be stored in the inner
groove after the rotation shaft stops rotating, thereby achieving the
effect of recycling use. At the same time, the inner groove does not
communicate with the inner shaft hole, such that when the rotation shaft
is rotated, the lubricating oil contained in the inner groove will not be
directly carried out of the body and will not sputter out of the body.
Thus, the amount of loss of the lubricating oil may be reduced, thereby
increasing the lifetime of the bearing device.
