Abstract: A cart caster having an improved self-centering structure for causing the caster wheel to have a preselected alignment when elevated from a subjacent support surface. The self-aligning structure includes a cam, a cam follower, and a biasing element cooperatively causing the caster wheel to move to a preselected position about the caster axis when load is removed from the wheel as by lifting of the cart. The aligning structure may include a plurality of alignment portions permitting the wheel to be automatically brought to any one of a plurality of different positions about the caster axis, such as to either a fore or aft direction relative to the cart.

Abstract: A brake for use in connection with wheels, such as truck casters. The brake structure is adapted to be added to existing truck casters as well as original equipment. The brake permits facilitated operation. The brake includes an operating member which engages a cam member having opposed oppositely inclined cam surfaces defined by side flanges thereof to provide facilitated braking action.