A rear axle supporting frame for mounting a drive unit of a transportation vehicle including a first longitudinal beam and a second longitudinal which extend substantially along a longitudinal vehicle axis, as well as a first cross-beam and a second cross-beam which extend substantially along a transverse vehicle axis, the first cross-beam being located in front of the second cross-beam when viewed in a direction of travel. At least one bearing holder into which a bearing of the drive unit is pressed is provided on the rear axle supporting frame.