| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing device for a bearing which secures sealability of a bering inner space by greatly enhancing a waterproof property, and thereby enables the bearing to be used continuously for a long period of time. <P>SOLUTION: There is provided the sealing device for a bearing which is provided so as to cover the gap between a stationary ring constitution body (outer ring 1) always kept in a non-rotation state and a rotary ring constitution body (inner ring 3) arranged rotatably oppositely to the stationary ring constitution body, and includes an annular seal case 25 having its base end part 25e fitted to the stationary ring constitution body and its tip part 25t positioned not in contact with the rotary ring constitution body. The rotary ring constitution body has an annular recessed groove G which is formed by being partially recessed in a peripheral direction and in which the tip 25t of the seal case 25 is positioned in a state of being partially inserted, and the annular recessed groove G includes an external diameter-side tapered circumferential surface Gou inclined with respect to an axis Ax of rotation and an internal diameter-side tapered circumferential surface Gin opposed thereto. <P>COPYRIGHT: (C)2012,JPO&INPIT |
