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.

3-1/2" x 1-1/4" Thermoplastic Rubber Casters

Diameter: 3-1/2 inTread: 1-1/4 inCapacity: up to 275 lb

3-1/2" x 1-1/4" Thermoplastic Rubber Casters for warehouse carts on epoxy and smooth concrete. Catalog chips cover wheel diameters 3-1/2 in, polyurethane, thermo rubber (TPR), and rubber treads, and plate-mount frames. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races. 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.