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.

Colson Plate Casters by Wheel Size · 3 5" Wheel · Up to 300 lb

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

Casters on the 2-1/2 x 3-5/8 plate pattern suit light institutional and furniture-grade frames. You will see wheel diameters 3.5, 3-1/2 in, stainless treads, and capacities 300 lb across the SKUs listed below. When floors see chemicals or washdowns, prefer sealed bearings and non-absorbent wheel compounds. Pair swivel and rigid casters for tracking, or use total locks where the cart must park on a grade.