Floor vacuum cleaner with at least one castor with a rotatable bearing

The cleaner has an axle (6) arranged behind a pivot point in a movement direction of the cleaner. A wheel (9) is mounted in a guide roller housing. Another wheel is arranged in front of the former wheel in the movement direction in the guide roller housing of a guide roller unit (3). A running surface of the former wheel comprises a spacing to a bottom (12). A front wheel (7) is rotatably fastened on a projection (16) of the pivot point of the axle and/or between the projection of the pivot point of the axle and the former wheel in the movement direction.