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 3-5/8Bolt holes: 1-3/4 x 2-13/16Diameter: 2-1/2, 3.5, 4, 5 inTread: 1-1/4, 3-5/8 inCapacity: up to 300 lb

Casters on the 2-1/2 x 3-5/8 plate pattern suit warehouse carts on epoxy and smooth concrete. Catalog chips cover wheel diameters 2-1/2, 3.5, 4, 5 in, polyurethane treads, and capacities 250 to 300 lb. Replace worn corners in matched sets when possible so the cart tracks straight under load. Match bolt-hole spacing or stem diameter to the frame before you standardize a fleet. These light-duty options cover everyday warehouse carts on epoxy and smooth concrete without jumping to extreme forged series.