| 摘要 |
A multi overlapped bearing is provided to connect a plurality of bearings by arranging components to be adjacent and forming a groove in the middle case and smoothly transferring lubricating oil of an inner space and an outer space. A multi overlapped bearing comprises an outer case, a large bearing(5), a middle case(2), a small bearing(5'), and an inner case(3). The components are arranged to be adjacent. A groove part of a middle case(2') is formed in the middle case. The lubricating oil flows between an outer space(6) and an inner space(6') through the groove. The lubricating oil of the inner space and the outer space flows to each other by rotating the middle case. The smooth lubricating application between the large bearing and the small bearing is performed through the groove. The large bearing and the small bearing are installed inside the outer case. |
