DRIVING SHAFT ASSEMBLY HAVING COMPOSITION MATERIAL BEARING, DRIVING LINK ASSEMBLY HAVING THE SAME AND METHOD OF MANUFACTURING DRIVING LINK ASSEMBLY

摘要

The present invention comprises: a driving shaft extended in a specific direction and rotated on the specific directional axis; and a bearing composed of a fiber reinforced composite material and surrounding the outer surface of the driving shaft so as to form a gap separated from the surface of the driving shaft at room temperature. The bearing comprises protrusion parts. The present invention does not need an additional lubricating material by utilizing the fiber reinforced composite material and can increase rotation efficiency using the protrusion parts. The composite material forming the bearing is assembled to the driving shaft and forms the gap for rotation using the difference between the volume variations of metals because it has a low volume variation rate depending on temperatures. Also, the manufacturing process is simple.