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 Spring-Loaded AEZFWH Workhorse Casters w/ UltraGlide Ergo Wheels · Up to 1,200 lb · 4"–8"

Diameter: 4, 6, 8 inTread: 2 inCapacity: up to 1,200 lb

Hamilton Spring-Loaded AEZFWH Workhorse Casters for warehouse carts, racks, and everyday plant fixtures. Expect wheel diameters 4, 6, 8 in, plate-mount frames, and capacities 1,200 lb. When floors see chemicals or washdowns, prefer sealed bearings and non-absorbent wheel compounds. For dual-wheel or wide treads, check fork clearance and swivel radius in tight aisles. These medium-duty options cover everyday warehouse carts, racks, and everyday plant fixtures without jumping to extreme forged series.