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.

8" x 4" Forged Steel Casters

Diameter: 8 inTread: 3, 4 inCapacity: up to 40,000 lb

8" x 4" Forged Steel Casters for forging carts, aerospace fixtures, and multi-ton movers. Typical builds show wheel diameters 8 in, steel treads, and plate-mount frames. Replace worn corners in matched sets when possible so the cart tracks straight under load. Size capacity from the heaviest corner load with shock margin, and keep overall height consistent across the set. These extreme-duty options cover everyday forging carts, aerospace fixtures, and multi-ton movers without jumping to extreme forged series.