ES142908U - A vertical axis and bearing construction provision for an orientable support wheel by itself. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A vertical shaft and bearing construction arrangement for a self-rotating support wheel, provided with an orientation plate with a central opening passing through it, a construction comprising first and second annular retainers, of bearing balls, arranged in opposite sides of the orientation plate and spaced apart therefrom, said retainers having coaxial annular flange means adjacent their inner edges, flange means extending toward each other firmly limiting the movement of said retainers toward each other, having one of said flange means a substantially cylindrical part, and both flange means parts defining openings provided with diverging walls away from the orientation plate; a plurality of bearing balls disposed between said retainers, on opposite sides of said orientation plate, with firm and close rolling application contact with said retainers and said orientation plate; in said orientation plate and said retainers, means for holding said bearing balls in annular trajectories substantially concentric with said flange means; a vertical axis or master orientation pin having a central portion disposed very tightly within said flange means and said cylindrical portion, said vertical axis having a pair of annular and spaced flange portions or portions near the opposite ends of said portion central, flange portions that are provided with exterior surfaces that converge to each other, and have essentially the same shape as the openings of said flange means, where they are received very tight, so that there is a positive opposition to the relative axial movement of said first and second retainers. (Machine-translation by Google Translate, not legally binding)