SEAL ASSEMBLY

A seal assembly for sealing a shaft configured to rotate in a main direction, the seal assembly including a stiffener and an elastomer member connected to the stiffener, the elastomer member includinga seal region having a seal section configured to seal against a to-be-sealed space, the seal section including a first screw-thread-type coiled plate structure configured to pump a leakage fluid back to the to-be-sealed space, a second circumferentially-extending sealed coiled plate structure configured to sealingly abut on the shaft at least when the shaft is not rotating, and a third circumferentially-extending sealed coiled plate structure configured to sealingly abut on the shaft at least when the shaft is not rotating, wherein the second coiled plate structure is axially spaced from thethird coiled plate structure. 种密封组件，用于密封被设置用于沿主方向转动的轴，包括以下特征：加强部件和连接到所述加强部件的弹性体部件；弹性体部件包括密封区域，密封区域包括被构造用于密封待密封的空间的密封部分；密封部分包括螺纹型式的第卷板结构，使用该第卷板结构，泄漏流体能够被向回抽吸到待密封的空间内；密封部分包括第二卷板结构，第二卷板结构在周向上延伸并且封闭，第二卷板结构被设置用于至少在非转动轴的情况下密封地抵靠在轴上