Is my front door too heavy for the hinges or...?

[def90]

I work on houses and commercial buildings doing access control systems among other things. Even in houses that are over 100 years old I have never seen a hinge with gaps from wear. Those hinges had bearings or spacers in them at one time that were not put back in.

As for replacing the current hinges, buy hinges that are the same size with the same hole pattern. Take the door off, remove all the hinge plates and install the new hinge plates. Put the door back on.