I bought these to move a 2700 lb lathe and they worked very well. Rotating them under load was not as smooth as I'd have liked, but I made it work. Getting them rolling was very easy, however, and the wheels held up very well. These are the sort of thing that if you need them, you REALLY need them. I don't know how they'll hold up over time, but they earned their cost on this one job for sure!