| 摘要 |
<p>PROBLEM TO BE SOLVED: To extend durability of a rolling bearing device and improve its quietness by reducing loads applied to a rolling element and a raceway surface and further reducing a frictional force between the rolling element and the raceway surface.SOLUTION: A multilayer construction of granular fine particles covers the surface of the rolling element, fine particles forming the surface layer of the multilayer construction receive shear stress when the rolling element rolls on the raceway surface, transfer from the rolling element to the raceway surface to cover the raceway surface and the rolling element rolls on the raceway surface through a contact between granular fine particles at the surface of the rolling element with the granular fine particles at the raceway surface. As a result, the surfaces of the rolling elements and the raceway surfaces have self-lubricity caused by the granular fine particles, the loads applied to the rolling elements and the raceway surface are reduced, at the same time, the frictional force between the rolling element and the raceway surface is reduced, durability of the rolling bearing is extended and its quietness is improved.</p> |
