Abstract: An anti-tilt device for a caster that includes a wheel, rotatably mounted in a frame, for rotation about a rotation axis. The anti-tilt device, comprising first and second face plates; first and second flanges extending from opposing edges of said first plate, each of the first and second flanges wrapping beside the first face plate; first and second flanges extending from opposing edges of said second face plate, each of the first and second flange extending beside the first face plate, to prevent rotation of the first and second face plates when mounted to the caster frame; first and second legs extending from the first second face plates, respectively; and a bar, extending between the first and second legs across a tread face of said caster wheel when mounted to said frame, at a defined angle of the tread face, as measured from a vertical axis extending through said rotation axis, when said caster is level. Each of said first and second legs includes a defined bend to place said bar at said defined angle.