I have a Thule Cougar trailer and I would love to put these Burley fat tire wheels on it. Because reasons. The push button hubs on the Burley wheels look the same as the ones used on my Thule, but I can't find a definitive answer on compatibility.
Got a reply from a dual owner (burley and Thule) that they have a slightly different axle-witdh (should have been thickness). :( https://thismombikes.net/child-trailers-chariot-vs-burley/