Side channel compressor and fuel cell system

The invention relates to a side channel compressor (1) for a fuel cell system (2) for compressing a fluid, comprising a housing having a first housing part (3) and a second housing part (4). The first housing part (3) has a bearing pin (5) extending along a rotational axis (R). The bearing pin is provided with a pin root part (6) and a pin main part (7). A bearing inner ring (8) of a bearing device (9) is arranged on the pin main part. A compressor device (10) is rotatably arranged on a bearing outer ring (11) of the bearing device (9) within the housing about the axis of rotation (R). The bearing pin (5) has a pin end (12), the pin main part (7) is arranged between the pin root (6) and the pin end (12), the pin end (12) has a pin clamping part (13) which protrudes out of the bearing inner ring (8) along the rotation axis (R), and the first housing part (3) is clamped with the bearing inner ring (8) through the pin clamping part (13). 本发明涉及一种用于燃料电池系统(2)的侧通道压缩机(1)，用于压缩流体，包括具有第一壳体部分(3)和第二壳体部分(4)的壳体。第一壳体部分(3)具有沿