Main gear of the gearbox: 1 - differential housing; 2 - plate gear; 3 - gearbox output shaft; 4 and 7 - bevel gears of satellites; 5 - spacer sleeve; 6 - planetary gear; 8 - satellite axis; 9 - distance and fixing ring.
The main gear pinion is screwed to the differential housing. And finally, the drive shafts create a force-lock connection between the main gear and the wheel hub.