There are probably OK wheel adapters and situations where they are acceptable..

There are also junk adapters out there, and or not well designed.
Have a look at the following pictures of some adapters I bought to use on a small/light trailer, about everything that could be wrong with them was, Thankfully I was able to return them and not lose much money. Never replaced them, deciding making new hubs is a better idea.

Studs not square
https://photos.app.goo.gl/qiPdrhVtycZgZ2UU2

Studs not fully seated (pressed in)
https://photos.app.goo.gl/yBoTXwLqLu1QNxHy1

Studs not square because head not concentric, and or counterbore is undersized.
https://photos.app.goo.gl/T7XBY3zw12EgL7KR2

Studs not pressed in fully because knurls not properly placed, full stud diameter before knurl prevented pressing them in, damaged bore in adapter.
https://photos.app.goo.gl/F2b1PBKm02VaqxpG3

Mating surfaces not cleaned up flat, note saw marks (perhaps not a big deal if only a small area, depending on location, indicates low pride in workmanship)
https://photos.app.goo.gl/QWnEBS2IpWXRYP143

Adapters not parallel by 1/64" over the diameter, tire/wheel run-out at much larger diameter would be much exaggerated. They were also undersized, ordered at 1.500".
https://photos.app.goo.gl/mJ8bjLh18jcq37hu1

Those were from EZaccesory.com communication was also very poor, and I believe they were made overseas to order, not US made.



•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-