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.

Albion Kingpinless Casters by Plate Size w/ Metal Wheels · 7-1/4" x 6-1/4" Top Plate · Up to 10,000 lb

Plate sizes: 6-1/4 x 7-1/4Diameter: 6, 8, 10 inTread: 3, 4 inCapacity: up to 10,000 lb

Casters on the 6-1/4 x 7-1/4 plate pattern suit heavy industrial carts that tear up kingpin races. Expect wheel diameters 6, 8, 10 in, steel treads, and capacities 5,500 to 10,000 lb. Bring plate and stem measurements when replacing unmarked casters so the new corners sit level. Larger plates spread bolt stress on thick frames under continuous tow abuse. Confirm stem length and thread pitch on stem mounts so the shoulder seats flush in the boss.