TRAILER JACK AND TRANSPORT SYSTEMS EMPLOYING A SPHERICAL LOAD-BEARING TRANSPORT BALL, AND SPORT, RECREATIONAL AND UTILITY TRAILER SYSTEMS AND METHODS EMPLOYNG THE SAME

A trailer jack and transport system providing improved rolling and steerable motion to sport, recreational and utility trailers, when operating on diverse kinds of ground surfaces, including pavement, dirt, sand, and mud, without use of caster-style wheels. The trailer jack and transport system employs a spherical load-bearing transport ball supported within a frame assembly and configured to allow the spherical wheel to freely rotate in any orientation, on ground surfaces of a diverse nature during system operation.