Drive axle assembly

The invention relates to a drive axle assembly for a heavy-duty vehicle. The drive axle assembly comprises a hollow hub (2), a wheel body (6) rotatably mounted on the outer circumference of the hollow hub (2), and a planetary gear with a first (10) and a second (20) planetary gear stage, each comprising a sun gear (12, 22), a ring gear (18, 28) and a planet carrier (14, 24) with planet gears (16, 26) rotatably mounted therein, which mesh with both the sun gear (12, 22) and the ring gear (18, 28). The drive axle assembly further comprises a drive shaft (4) guided axially through the hollow hub (2) and the sun gear (22) of the second stage (20), at whose outer end facing away from the vehicle the sun gear (12) of the first stage (10) is arranged in a rotationally fixed manner. The planet carrier (14) of the first stage (10), the ring gear (28) of the second stage (20) and the wheel body (6) are rotationally fixed to one another. The ring gear (18) of the first stage (10) is rotationally fixed to the sun gear (22) of the second stage (20). The planet carrier (24) of the second stage (20) is rotationally fixed to the hollow hub (2). The hub gear further comprises a ring disk (30) which is rotationally fixed to the hollow hub (2) by means of a screw-pin connection.