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.

Threaded Stem Leveling Casters · 1-3/4"–3" · 440–6,400 lb · Nylon

These threaded stem leveling casters fit shop carts, equipment, and material handling carts that move heavier loads. Casters in this collection range from 440 to 1,600 lb per caster. Wheels are 1-3/4 to 3 in nylon in swivel models. Sets of 4 show the combined set rating on the title, so divide by 4 for the per caster load. Leveling casters roll the unit into place, then a foot pad lowers so the machine or table sits firm and level. Match the mount, the leveling pad height, and the load before you order. Choose swivel casters when the cart must turn in place and rigid casters for straight travel. Read the listing for the exact wheel size, overall height, and mount shown. Confirm the load rating printed on the title before you order. Measure the old wheel or caster before you buy. Leveling aisle: leveling casters. Plate aisle: plate casters.