| 摘要 |
Provided is a sealing device that suppresses degradation of sealing properties resulting from conduction of heat generated by sliding of a resin-made sealing member and a rotating shaft to a rubber-made sealing member. The sealing device includes a rubber sealing member (110), a resin sealing member (120), a support ring (130), and a case (180), the support ring (130) has: a large diameter portion (131); an inward flange (135) that extends inwardly in a radial direction from an end portion of the large diameter portion (131) on an air side, and that is in contact with an inward flange (182) of the case (180), and has a notch (135a) with which a nail portion (183) is engaged; a small diameter portion (133) that is connected to an end portion of the large diameter portion (131) on a sealed fluid side via a stepped portion (132), and that is in contact with an inner peripheral surface of a lip portion (112) of the rubber sealing member (110), and extends toward the sealed fluid side beyond a sliding portion (122a); and a lip retaining portion (134) that extends inwardly in the radial direction from an end portion of the small diameter portion (133) on the sealed fluid side. |
