Strain wave gear mechanism with an inner seal

The invention relates to a strain wave gear mechanism (1) with a gear mechanism component (CS) and an elastically deformable transmission component (FS) which is at least partially in alignment therewith in the radial direction (29) and can be deformed elliptically by way of a drive component (WG) which interacts therewith, in such a way that internal or external toothing systems (8, 9) which are provided on the gear mechanism component (CS) and the transmission component (FS) can be brought into engagement in opposite regions of an elliptical axis, in order to rotate the transmission component (FS) and the gear mechanism component (CS) relative to one another, wherein the transmission component (FS) and the gear mechanism component (CS) are mounted such that they can be rotated relative to one another by means of a pivot bearing (30) which has a bearing intermediate space (16). In order that the risk of a lubricant leak and/or premature dry running of the gear mechanism can be reduced reliably, there is a st