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 · 7-1/2" x 6-1/4" Top Plate Choose By Plate Size

Plate sizes: 6-1/4 x 7-1/2Diameter: 6, 10 inTread: 3, 4 inCapacity: up to 8,400 lb

Casters on the 6-1/4 x 7-1/2 plate pattern suit heavy industrial carts that tear up kingpin races. Typical builds show wheel diameters 6, 10 in, polyurethane and cast iron treads, and capacities 3,000 to 8,400 lb. For dual-wheel or wide treads, check fork clearance and swivel radius in tight aisles. Larger plates spread bolt stress on thick frames under continuous tow abuse. These heavy-duty options cover everyday heavy industrial carts that tear up kingpin races without jumping to extreme forged series.