I don't see strength being an issue here. It's a small wheel slipped over a spinner on a stand up cab.
The spinner isn't going to offer any resistance and there's no reason to push or pull on the wheel.
It's not like people are going to be pulling on it to get in and out of a sit down cab.
My PLA prints tend to break fairly easy (might be my printer settings though, and the brand PLA).
Things printed with 100% infill are pretty tough.
I test printed a router table insert at 25% a few weeks ago.
It fit too tight so I had to use a screwdriver to pry it out. It deformed super easy.