| 摘要 |
PURPOSE:To certainly prevent that dust enters a bearing by fitting a sealing material on an inside ring part. CONSTITUTION:This idler pulley 1 is provided with an outside ring part 2 making contact with a belt, an inside ring part 3 positioned concentrically inside of the outside ring part 2 and plural connecting members 4 which connect the outside ring part 2 to the inside ring part 3, and is rotatably supported by a supporting body 5 through a bearing 9 in contact with the inner circumferential face of the inside ring part 3. A flexible sealing material 13 is installed on the outside face of the inside ring part 3 as being in contact with a plate material 10 on the side of the supporting body 5 and a projected part 14 of the supporting body 5. |
