Autocraft 4" Heavy-Duty 3 Jaw Gear Puller
The arms can be swapped around for a better fit. I used loctite to keep the arm nuts snug. I use an ISIS bolt on the spindle to protect the threads. It’ll pull a bearing as long as there is at least 4mm between the hub and the bearing (4mm spacer is standard).
There are probably better pullers, I just bought the one they had that would fit.
I got a flimsy $5 puller that is garbage. i am getting a nice on soon 
get a nice on when you do
Thanks for the feedback! My experience is getting 50% success with a cheap puller I bought and 50% with a more expensive 3 jaw puller I borrowed from an auto parts store. In the latter case I broke the other bearings I tried to get off. This may be operator error and they also were 32mm bearings. However, I got this bearing separator and puller set and found it easy and effective. It let me remove the inner race left from the bearing I broke as well.
More related to the original thread, if you haven’t seen already dmacuni reported that freewheel hubs are now available at the unicycle.com UK site, including a version compatible with a disc brake! I think you really need an inside disc brake for a freewheel unicycle vs. outside.
Harbor Freight ftw! 