The clutch system (1) used in the automobile power train is disconnected from the clutch (2) having at least one partial clutch (3a, 3b) and the position where at least one partial clutch (3a, 3b) is connected. Cylinder housing (6), which is prepared for adjusting the position between the two positions, and forms a central through opening (5) for passing through the transmission input shaft (26, 28) The cylinder housing (6) includes an operating device (4) that is axially and / or radially supported by the semi-fixed bearing (7). The bearing ring (8) of 7) has a recess (10) that at least partially holds the axially oriented extension (9) of the cylinder housing (6). Furthermore, the present invention relates to a power train for use in an automobile, comprising a transmission housing (14) having an opening (13) and a clutch system (1) according to an aspect of the present invention. At least a semi-fixed bearing (7) is provided. , Is disposed radially inward of the opening (13).
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