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/ Duralast Polyurethane Wheels · Up to 1,250 lb · 5"–8" · Cast Iron

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

Hamilton Casters w/ Duralast Polyurethane for warehouse carts on epoxy and smooth concrete. You will see wheel diameters 5, 6, 8 in, polyurethane treads, and plate-mount frames across the SKUs listed below. Harder poly rolls easier on smooth epoxy; softer poly cushions vibration on uneven slabs. Pair swivel and rigid casters for tracking, or use total locks where the cart must park on a grade.