| 摘要 |
PURPOSE:To completely prepare a waterproof upper bearing by upward projecting an upper bearing retainer, and providing a rotary drain disc on a rotational shaft near the retainer. CONSTITUTION:A retainer 3A of the upper bearing 2 of an end bracket 3 is projected upward from the remainder of the end bracket. A rotary drain disc 4 is mounted near the retainer 3A on a rotational shaft 1 extending upward from the retainer 3A. Since the retainer 3A is projected upward from the surface of the remaining end bracket 3, water does not enter into the bearing 2 from between the retainer 3A and the disc 4. Water droplets dropped on the disc 4 are centrifugally scattered by the disc 4 through a space 10 and exhausted in a direction C. |
