Can anyone identify this wheel-like part from the Kazi 10005 80cm WW2 German Railway Gun "Dora"? Pictures below show a part from the Kazi 10005 80cm WW2 German Railway Gun "Dora".

I've been looking on Bricklink for this part, but I can't seem to find it.

Does anyone know if this actually exists in LEGO? And if so, what's the part number?
I know of similarly looking LEGO piece - Minifigure, Utensil Barbell Weight.