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.

3.5" x 1.25" Rubber Wheels

Diameter: 3-1/2 inTread: 1-1/4 inCapacity: up to 800 lb

3.5" x 1.25" Rubber Wheels for warehouse carts on epoxy and smooth concrete. Expect wheel diameters 3-1/2 in, polyurethane and rubber treads, and industrial frames. Softer treads quiet finished floors; harder compounds last longer on chips, heat, and rough concrete. When floors see chemicals or washdowns, prefer sealed bearings and non-absorbent wheel compounds. These medium-duty options cover everyday warehouse carts on epoxy and smooth concrete without jumping to extreme forged series.