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.

4" x 2" Forged Steel Casters

Diameter: 4 inTread: 2 inCapacity: up to 800 lb

Steel casters here serve warehouse carts, racks, and everyday plant fixtures. You will see wheel diameters 4 in, steel treads, and plate-mount frames across the SKUs listed below. Bring plate and stem measurements when replacing unmarked casters so the new corners sit level. Softer treads quiet finished floors; harder compounds last longer on chips, heat, and rough concrete. These medium-duty options cover everyday warehouse carts, racks, and everyday plant fixtures without jumping to extreme forged series.