Good news! Apparently the simulation feature in Fusion360 is available for free on the education edition, so here are some simulations at several force levels.
For those who have never seen something like this: Visuals are greatly exaggerated for comprehension, the actual values are represented in the graph, as well as the extrema pointed out.
Radial load setup on the bearing surfaces:
200N (~20kg per wheel):
safety factor:
tension:
displacement:
strain:
reaction force:
500N (~51kg per wheel):
safety factor:
tension:
displacement:
strain:
reaction force:
1000N (~102kg per wheel):
safety factor:
tension:
displacement:
strain:
reaction force:
