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.

Hamilton Casters w/ Metal Wheels · Up to 1,250 lb · 5"–8" · Cast Iron

Diameter: 5, 6, 8 inTread: 2 inCapacity: up to 1,250 lb

Industrial tread compounds casters here serve warehouse carts, racks, and everyday plant fixtures. Expect wheel diameters 5, 6, 8 in, plate-mount frames, and capacities 1,250 lb. Confirm stem length and thread pitch on stem mounts so the shoulder seats flush in the boss. 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.