FIG. 1 is a top, rear, and left side perspective view of a first embodiment of the wheel assembly;
FIG. 2 is a bottom, front and right side perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right-side elevational view thereof;
FIG. 6 is a left-side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a top, rear, and left side perspective view of a second embodiment of the wheel assembly;
FIG. 10 is a bottom, front, and right side perspective view thereof;
FIG. 11 is a front elevational view thereof;
FIG. 12 is a rear elevational view thereof;
FIG. 13 is a right-side elevational view thereof;
FIG. 14 is a left-side elevational view thereof;
FIG. 15 is a top plan view thereof; and,
FIG. 16 is a bottom plan view thereof.
Broken lines are used to illustrate portions of the wheel assembly that form no part of the claimed design. Additionally, some portions of some embodiments are illustrated with solid black surface shading for indicating that such portions have a contrasting color relative to the portions adjacent thereto, the portions illustrated with such solid black surface shading being either darker or lighter to the adjacent portions that have no surface shading.