CasterHQ8" X 2" Swivel Caster Heavy Duty Polyurethane Wheel W/Brakes 950lbs Each - Set of (4) Tool Box

These are quite sturdy. I used them on a set of steel horses I use outside. The horses are made out of 5 inch structural steel and 2x3 rectangular steel tube. With these casters, I can move the horses around on asphalt with about 700 pounds on them with no effort. In fact, they roll so easy, I have to set the brakes on the casters to keep them from rolling around too easily.

I order three sets of castors each set was to have two ridged and two swivel with brakes , I received all swivel with brakes , my customer was not happy about it and had to modify the swivel castors to ridged before they would accept.

I built a gantry crane and used these. They do good outside. I just need to remember to grease them every now and then

I put them on a table that weight about 200lbs. Its works perfectly!!!!!

EXCELLENT