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 Wheel Bearing w/ Phenolic Wheels · Precision Ball Bearing · 6"

Plate sizes: 3-3/8 x 5-1/4, 4-1/2 x 6-1/4Bolt holes: 2-7/16 x 4-15/16 slotted to 3-3/8 x 5-1/4Diameter: 6 inTread: 3 inCapacity: up to 2,000 lb

75 Series - Kingpinless (To 4100 Lb/Ea) phenolic casters sized for heavy industrial carts that tear up kingpin races. Typical builds show top plates around 3-3/8 x 5-1/4, wheel diameters 6 in, and phenolic treads. Match bolt-hole spacing or stem diameter to the frame before you standardize a fleet. 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.