Bern's talking about the pivot pin design on the general purpose front end. Pivot pin wear is accelerated with a loader and more so if the operator is abusive with heavy work. Light duty set up, and with these, need to just monitor for wear and make the repair to them timely. They will go a long way before things a sloppy and worse, trust me, you ought to see the front end under my old 850, same design. I always thought based on our 3600 with the same front axle, which had a loader most of its life, that the pivot pin was either slightly different or larger. Our 3600 did a lot of work over the years and towards the end the pivot pin was still within tolerance, not a heck of a lot of wear. Heavy work will test out the spindles, there are some types that are thicker for loader applications, at least in hundred series there is.
Preferably, a heavier industrial front axle is best suited for loader work, but a tractor such as yours would not bother me the least as long as that front axle pivot pin was within tolerance and the spindles did not have stress cracks.