| 摘要 |
PURPOSE:To completely prevent an axial current and to shorten the axial length by burying an axial current exhausting brush in a pocket of an oil thrower slidably contacted with a rotational shaft, thereby preventing dusts from adhering to the brush. CONSTITUTION:A bearing box 3 is provided outside a bearing 2 which supports a rotational shaft 1, and an oil thrower 4 which is slidably contacted with the shaft 1 is mounted between the box 3 and the shaft 1. An axial current exhausting brush 7 is contained in a pocket 6 of the thrower 4, and slidably moved on the shaft 1. Thus, since the brush 7 is enclosed by the thrower 4, it can prevent dusts from adhering, and since the mounting space of thrower 4 can be used also as that of the brush 7, the size can be reduced. |
