Yup. Had my '66 wheels rechromed and the idiots also did the rim. So, we repainted not only the centers in argent, but the black for the rest. It's a PITA and very time-consuming, but if you want to keep your originals it's the only way. The surface prep and taping is critical...especially if you are spraying over chrome.
If you're using lacquer to paint the wheels(style steel gray paint is lacquer) you DO need primer on a hard surface. Sand the area as best you can, a light coat of a gray self-etch primer, like Sems brand #3963 and then the paint. Lacquer does not adhere well on bare steel or an unsanded surface. The self-etch primer is also lacquer based, judging by smell. Have done several sets over the past 20 years and the process lasts. Using a coarse Scotchbrite will do it or 280-320 wet or dry paper