So you discovered the casters on the 1500 lb ones jammed up and wouldn’t swivel ?

I heard a story about LOUSY QUALITY CONTROL on the ball bearing .... but I've never seen it. A couple of months ago - I went to Hobo and I bought some of those 4” casters to put on a rollaway box and went through a BUNCH of those in the bin ..... I couldn’t IMAGINE a caster wheel moving more freely !