| 摘要 |
PURPOSE: A bearing unit is provided to improve a cooling effect on a bearing and a bearing housing since oil in an oil retainer coupled between the inside of a bearing housing and a rotary shaft is effectively supplied. CONSTITUTION: A bearing unit comprises a pulley bearing(20-1), an impeller bearing(20-2), a bearing housing(30), and an oil retainer(40). The pulley bearing and the impeller bearing are axis-connected to a rotary shaft(10) with being separated from each other. The pulley bearing and the impeller bearing support the rotary shaft to be rotatable. The rotary shaft passes through the bearing housing. A bearing is coupled with both inner ends of the bearing housing. The oil retainer is opened so multiple oil outlets(41) connect to a space. The multiple oil outlets are coupled with the inside of the bearing housing. The multiple oil outlets are located between the bearing housing and the rotary shaft. |
