| 摘要 |
PURPOSE: A combined bearing and a rotary machine are provided to simplify structure, improve reliability, and increase lubrication. CONSTITUTION: A combined bearing comprises a first rolling bearing(11), a second rolling bearing(13), and a lubricant guide port(15). The first rolling bearing and the second rolling bearing contact each other on the same axis line. The lubricant guide port introduces lubricating oil into an internal space between the first rolling bearing and the second rolling bearing. The lubricant guide port is provided to the outer ring of the first rolling bearing or the outer ring of the second rolling bearing. The lubricant guide port includes grooves(11d,13d) formed on the side of the outer ring of the second rolling bearing. The side contacts the side of the outer ring of the first rolling bearing. |
