Rear wheel turns hard and makes a noise?

I've been feeling a drag in the rear of my car and thought it was caliper being locked again since this is a recurring issue. With the caliper off and spin the wheel there is a lot of resistance and a weird noise but it does spin. I can't tell if this is the wheel hub or rear axle, not sure. Any ideas of what it could be since I'm not a mechanic those are what I can tell. Thanks