The casters went on pretty easily and seem durable. My biggest beef is that the wheels "catch" when changing directions. There is enough clearance when you're pushing the table away from you (and the 2 nearest casters are closer to you), but the opposite side wheels turn inward and bind against the legs of the table. Maybe I did something wrong, but that seems like a pretty big thing to catch earlier.

I bought a Nie-Nielson bench, which has a 4" thick hard maple top - 4" all across. But I have a small shop and need it to be movable at times. So I bought a set of these and found they work great.

installed on the bench and work great!

Order arrived quickly and in good order - no issues. I installed these for my table saw outfeed table/storage cabinet, which gets quite heavy - these make it a breeze to move around. The welded-on plates give peace of mind, knowing these won't fold under pressure.

I recently got a Sjobergs Elite 2000 bench with storage cabinet. It weighs 350 pounds plus the weight of the tools stored in the cabinet. My shop setup will require me to move it from time to time and I was concerned that the “standard” bench casters would fail under that load. The “Cosmonized” casters seem like they will hold up much better. Time will tell but so far the work great!