| 摘要 |
A sealing device includes a core metal that is fitted to the outer ring, and a sealing member that is fixed to the core metal. The core metal has a cylindrical portion that is fitted to the inner periphery of an end portion of the outer ring, an outer annular portion, and an inner annular portion. The sealing member has a covering portion that covers the outer annular portion and the cylindrical portion, and a space is formed between the covering portion and the flange. The sealing member further has an inner lip portion, and an outer lip portion. The covering portion has a deformed portion used to enlarge the space to suppress stagnation of water in the space. |
| 主权项 |
1. A wheel bearing device comprising:
an inner ring having a flange; an outer ring located radially outward of the inner ring; rolling elements disposed between the inner ring and the outer ring; and a sealing device that prevents foreign matter from entering an inside of a bearing, in which the rolling elements are located, wherein the sealing device includes a core metal that is fitted to the outer ring, and a sealing member that is fixed to the core metal, the core metal has a cylindrical portion that is fitted to an inner periphery of an end portion of the outer ring, an outer annular portion that extends radially outward from the cylindrical portion and that is brought into contact with an end face of the outer ring, and an inner annular portion that extends radially inward from the cylindrical portion, the sealing member has a covering portion that covers a flange side-portion of the outer annular portion and an inner peripheral side portion of the cylindrical portion, a space being formed between the covering portion and a side face of the flange, the sealing member having an inner lip portion that extends from the inner annular portion toward the flange and is in sliding contact with an inner seal face of the flange, and an outer lip portion that extends from the outer annular portion toward the flange, a small clearance being formed between the outer lip portion and an outer seal face of the flange, and the covering portion has a deformed portion used to enlarge the space to suppress stagnation of water in the space. |
