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.

5" x 1.25" Polyurethane Casters

Plate sizes: 2-1/2 x 3Diameter: 3-1/2, 5 inTread: 1-1/4 inCapacity: up to 325 lb

Casters on the 2-1/2 x 3 plate pattern suit warehouse carts on epoxy and smooth concrete. You will see wheel diameters 3-1/2, 5 in, polyurethane treads, and capacities 250 to 325 lb 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.