A powered axle gear (I) for a motor vehicle. The axle gear can cope with large driving torques and at the same time be accommodated in an axle beam between the vehicle's tractive wheels. The axle gear has a gear housing (10) which accommodates a pinion (40) and a crownwheel (50) for transmission of rotary motion to the vehicle's powered axles (Y1, Y2). To this end, there are two bearings (62, 64), one on each side of the crownwheel (50) and the pinion's centerline (X), with a differential situated between the bearings (62, 64). The bearing (64) situated beyond both the crownwheel (50) and the pinion's centerline (X) has running round it an undivided bearing seat (30) provided with a portion running in the circumferential direction which protrudes over the pinion (40) towards the latter's centerline (X) in a configuration which at least partly overlaps the pinion (40). The invention relates also to a motor vehicle with this axle gear.