A device for a non-streamlined propeller with blades having variable pitch of a turbomachine, the device comprising a support intended to support a blade in a distal area and including a cylindrical foot in a proximal area, a bearing comprising a radially internal annular section and a radially external annular section, with said radially internal and external annular sections being capable of pivoting with respect to each other, with the foot being mounted in said internal section of the bearing, wherein the device comprises a hub mounted in the foot, with said hub comprising a rim comprising a resting face oriented towards a distal end of the hub and resting on the radially internal annular section of the bearing, with the hub comprising engagement elements and the foot comprising complementary engagement elements able to enable the axial insertion of the hub into the foot of the support, in a first angular position of the hub relative to said foot and able to axially hold the hub in position in said foot, in a second relative angular position, through an axial resting of the engagement elements of the hub against the complementary engagement elements of the foot, or vice versa, with the device further comprising a locking component able to lock the hub relative to the foot, in the second angular position.