| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wheel bearing seal having a structure in which muddy water hardly intrudes into a lower part of a seal space while flowing on an inside diameter face of a seal member even if the muddy water intrudes into the seal space.SOLUTION: A step part 18 extending toward a radial space 16 between an annular seal plate 10 and a slinger 11 in an axial direction is formed at an inside diameter face 17 of a seal member 13 which is joined to a core metal 10, thereby, even if muddy water intrudes into a seal 7, a downward flow of the muddy water is hindered by the step part 18 of the inside diameter face 17 when the muddy water flows downwardly along the inside diameter face 17 of the seal member 13, and the muddy water is prevented from being accumulated in a lower part of a seal space.</p> |
