I installed a set of retractable wheels on each of my work benches. I had these on one for a few months, and was pleased at how well they worked out. So I added a set for each bench. They have a (combined) 800 pound load limit, which will be plenty more than needed.
Mount plate attached, torquing up the bolt holding the wheel. Once extended, the wheels lift the leg about 1/4 inch, plenty of clearance for rolling around the garage floor.One wheel on each leg. Step on the lever to push the wheel down and lock it in position. Gentle pull up and the wheel retracts
