All rolling on a finely crafted ball bearing design that will keep you moving forward.
3. The Service Caster Series #20 is ideal for light and medium duty material handling, carts, equipment, and shop projects.5 Inch Black Polyurethane Swivel 10mm Stem Caster Set Total Lock Brake SCC Supports a total weight of 1,000lbs (250lbs/per caster). Listing is for a set of four (4) Service Caster Series #20 swivel casters, four (4) swivel 10mm threaded stem casters with total lock brakes, 3.