Sealing device
AssigneeUchiyama Manufacturing Corp.
InventorYuta DAIMATSU
Life of this patent
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Abstract
A sealing device including a U-shaped slinger to achieve reduction of torque and improvement of sealing ability is provided. A core member portion of the sealing device includes a seal lip portion which performs relative rotational motion while being in contact with the slinger and is made of an elastic material. The slinger includes a first cylindrical portion, a disk portion, and a second cylindrical portion, and has a recessed space as an outer frame which is defined by the first cylindrical portion, the disk portion, and the second cylindrical portion. At least two continuous faces of a first face of the disk portion and a second face of the disk portion are roughened, the first face facing the recessed space, the second face being adjacent to the first face are roughened.
Claims7
A sealing device comprising:
- a core member portion to be fitted and fixed to one of two members which relatively rotate in a concentric manner;
- and
- a slinger to be fitted and fixed to another of the two members,
- the sealing device being configured to seal a space between the two members and being in an annular shape,
- wherein the core member portion comprises a seal lip portion which performs relative rotational motion while being in contact with the slinger and is made of an elastic material,
- wherein the slinger comprises a first cylindrical portion, a disk portion, and a second cylindrical portion which are provided for fitting, and comprises a recessed space as an outer frame which is defined by the first cylindrical portion, the disk portion, and the second cylindrical portion, and
- wherein at least two continuous faces of a first face of the disk portion and a second face of the disk portion are roughened, the first face facing the recessed space, the second face being adjacent to the first face.
Dependencies are inferred from the claim text.