| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing device with an excellent durability realizing a long life of the device while reducing an invasion of a dust. SOLUTION: A cover 8 slide-contacted with a housing 30 and closing a gap at an atmosphere side A between a sleeve part 2 and an oil seal part 4 is provided. Thereby, a dust such as muddy water invading to the gap at the atmosphere side A between the sleeve part 2 and the oil seal part 4 is reduced and an abrasion degree of a slide-contact part of the device by the dust can be reduced. Therefore, a durability can be enhanced. |
