There is provided a mounting assembly including a frame portion of a walker apparatus having a first bore and a second bore extending in a direction generally perpendicular to the first bore. The assembly includes a shaft rotatably connected to a wheel fork. The shaft is partially disposed within the first bore. The shaft has a recess for aligning with the second bore. The recess may be annular according to one aspect. The assembly includes a securing member threadably engageable with the second bore. The securing member couples to the frame portion of the walker apparatus. The frame portion may have a closed top according to another aspect within which a first end of the shaft is positioned. The assembly may include a bearing and a female threaded member connected to a second end of the shaft, with the female threaded member situating the bearing in place.