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.

Hamilton Thread Guards TG Casters w/ Versa-Tech Wheels · Up to 1,250 lb · 5"–8" · Polyolefin

Diameter: 5, 6, 8 inTread: 2 inCapacity: up to 1,250 lb

Rubber casters here serve finished floors and quiet institutional carts. Typical builds show wheel diameters 5, 6, 8 in, rubber treads, and threaded-stem and plate-mount frames. Size capacity from the heaviest corner load with shock margin, and keep overall height consistent across the set. Bring plate and stem measurements when replacing unmarked casters so the new corners sit level. These medium-duty options cover everyday finished floors and quiet institutional carts without jumping to extreme forged series.