| abstract |
Provided is a sealing device capable of stabilizing sliding resistance by suppressing an increase in sliding resistance even if lead eyes are formed at the contact portion of the lip. The sealing device (1) includes an annular elastic body portion around an axis (x) formed from an annular reinforcing ring (10) around an axis (x) and an elastic body attached to the reinforcing ring (10). (20). The elastic body portion (20) has a side lip (21), an intermediate lip (22), and a grease lip (23). Grease (G) as a lubricant is applied to the inner peripheral side surfaces (21a), (22a), and (23a) of the side lip (21), the intermediate lip (22), and the grease lip (23). Yes. Grease (G) does not contain a urea-based thickener in the thickener. In the use state of the sealing device (1), the cross-sectional area (A) of the space between the lips (S) surrounded by the side lip (21), the intermediate lip (22), and the hub wheel (55) is 3.5 mm 2 or more. ing. |