Anybody experience with these?

It looks like a neat way to cut down on parts but I wonder if it's going to cope properly with axial loads?

A proper BK bearing block has two captive bearings and a nut that holds it all together. I'm not so sure about these?

I do note the specs state a different load for axial push and pull, might be a clue?

https://www.aliexpress.com/item/4000151063765.html