I'm making a sewing table. I bought some 3" locking casters from McMaster Carr with a 5/16 threaded bolt which goes into a tee nut. The casters are good quality but I've run into an unexpected problem. The locking levers only prevent the wheel from turning, they don't prevent the wheels from rotating around their mounting axis which is off-center. If you gently shove on the table it jiggles as the wheels rotate on their axes.
I think the solution would be casters that lock both the wheel and the axis. I have some of these in various spots in my shop but they're the kind that mounts with a screw plate. The legs of the table are pretty spindly, maybe 1.5" square so I can't use casters that mount with a screw plate. Can anyone suggest a source for double locking casters with a bolt mount?
Failing that I'm thinking I should do something like have two legs with wheels and the other two with some kind of rod. The table would be moved by lifting on the side with the rods and rolling on the wheels. I don't love this solution, anyone have a better idea?
Thanks
David