The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.

W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.

DuraStar 04 Series Top Plate Casters · Up to 700 lb · 3"

Diameter: 3 inTread: 1-13/16 inCapacity: up to 700 lb

04 Series polyurethane, nylon, and polyolefin casters sized for chemical, food-contact, and washdown carts. You will see wheel diameters 3 in, polyurethane, nylon, and polyolefin treads, and plate-mount frames across the SKUs listed below. When floors see chemicals or washdowns, prefer sealed bearings and non-absorbent wheel compounds. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races. These medium-duty options cover everyday chemical, food-contact, and washdown carts without jumping to extreme forged series.