Rotationsbørste og fejemaskine med en rotationsbørste

The invention relates to a rotating brush, more particularly a sweeping brush for a sweeping machine, the rotating brush (20) comprising a brush body (36) that defines a brush axis (38), it being possible to build said brush body from axially extended shell parts (40, 41), on the radially outer side of each of which is fixed a bristle fill (39) of the rotating brush (20). In order to provide such a rotating brush and such a sweeping machine which can be handled with greater ease, the invention proposes that at least one shell part (40, 41) comprises on the radially inner side at least one first aligning element (52) and at least one second aligning element (53) spaced apart from the first aligning element in the circumferential direction of the brush axis (38), between which aligning elements is formed a receptacle (58) for a drive part (26, 28) for the rotating brush (20), which receptacle (58) is defined in portions by end faces (56, 57) of the aligning elements (52, 53), each of which faces the other aligning element (52, 53), at least one of the end faces (56, 57) being oriented obliquely relative to the radial direction and the receptacle (58) narrowing in a radial direction pointing away from the brush axis (38). The invention also relates to a sweeping machine.