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.

4" x 1-9/16" Casters

Plate sizes: 4 x 4-1/2Bolt holes: 2-5/8 x 3-5/8Diameter: 4 inTread: 1-1/2, 1-9/16 inCapacity: up to 1,760 lb

Casters on the 4 x 4-1/2 plate pattern suit warehouse carts, racks, and everyday plant fixtures. Expect wheel diameters 4 in and capacities 440 to 1,760 lb. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races. When floors see chemicals or washdowns, prefer sealed bearings and non-absorbent wheel compounds. These medium-duty options cover everyday warehouse carts, racks, and everyday plant fixtures without jumping to extreme forged series.