There is a sleeve On the axle that sits between the hub bearing and the freehub bearing. It is visible in the first picture. The other side looks just like the freehub side. As visible in the second picture there is that would traditionally be called a cone in olde tyme parlance. This piece is fixed to the axle and with a fair amount of force with a cone wrench on the "cone" side and a wrench on the flat machined surface of the axle, no move-y (unless it is reversed thread)