Abstract: A tow dolly cross rail assembly includes a male bar and a pair of female bars arranged in a slidable relationship, forming an arched configuration that creates a positive camber effect at dolly tires at the outer ends of the bars. The male bar comprises an apex that forms an angle that orients upwardly, forming an angle between about 165° to 179°. The center male bar and pair of female bars are arranged in a slidable relationship with each other. The midpoint of the center male bar forms an apex. The inner end of female bars is in a slidable relationship with free ends of center male bar. The female bars telescopically slide along the free ends of center male bar for increasing and decreasing length of cross rail. The arched configuration of the center male bar slopes the female bars to create a positive camber at the dolly tires.

Abstract: A tow dolly cross rail assembly includes a male bar and a pair of female bars arranged in a slidable relationship, forming an arched configuration that creates a positive camber effect at dolly tires at the outer ends of the bars. The male bar comprises an apex that forms an angle that orients upwardly, forming an angle between about 165° to 179°. The center male bar and pair of female bars are arranged in a slidable relationship with each other. The midpoint of the center male bar forms an apex. The inner end of female bars is in a slidable relationship with free ends of center male bar. The female bars telescopically slide along the free ends of center male bar for increasing and decreasing length of cross rail. The arched configuration of the center male bar slopes the female bars to create a positive camber at the dolly tires.

Abstract: A self-lubricating SLZ-type tow dolly assembly provides a self-lubricating bearing sleeve operable in an SLZ-type tow dolly. This serves to negate the need for grease fittings and manually greasing of the spindle bushing. The self-lubricating bearing sleeve press fit into a spindle bushing disposed in a spindle assembly to lubricate the spindle bolt. This facilitates rotational motion against the spindle bolt. In one embodiment, the self-lubricating bearing sleeve is a self-lubricating Igus M250 bearing sleeve that press fits into dolly pivot bushings. Rotational and linear motion creates pressure that discharges incremental amounts of the lubricant. Thus, self-lubricating bearing sleeve serves as a self-lubricating, pivot-point bearing sleeve. The self-lubricating bearing sleeve may be a plastic component with a lubricant integral therein. This allows for self-lubricating of bushing and spindle components during rotation of spindle assembly.