I use SKF bearings in my boat. I also pull them and repack them 2X per year. The biggest thing about bearings.... Make sure you change the race also. I've seen the old race left in, and put new bearings in. I actually saw that on a semi trailer not long ago. One brand of race, different brand of bearing, and the owner came to us because his hubs were getting too hot. Some of the Chinese stuff is junk, some of it is okay, but regardless of that, on some of the Chinese stuff, even bearings that interchange, don't always perfectly mate with the new bearings. I wouldn't use old races on USA bearings either.
Although things may have changed since I was in the loop, I'm not aware of any bearings being produced stateside.
I'd rather be fishing.
Just Google C. E. Smith Pregreased Replacement Hub Kit - several places carry them like Academy and Bass Pro Shops
No idea on whether they are American made bearings or not, because quite frankly I don't care about that little detail if I'm on the side of the road making an emergency repair. I've used bearings of all different brands for over 25+ years now, and like I said above, as long as you keep up the maintenance you shouldn't have any issues.
Northern Hydraulics and Tractor supply also carry pre-assembled hub kits if one of them is nearby.
Mark 1:17 ...I will make you fishers of men
C E Smith Galvanized Hub Kits worked for me. Research and find which kit you need, then shop around on line. Prices vary greatly.
Good seals and keep 'em greased for best service.
At least a time or two each year, I roll out my floor jack and lift up boat, trailer, and all on one side then gently spin the wheel checking for any rumble and also tug on it to check for looseness, then do the other side. Takes me about 3 minutes tops. That's how I found a cracked roller bearing in a hub earlier this year. Wheel was not getting hot or any other sign. No substitute for a physical inspection. When you can, a complete tear down is great, but the jack method is 3 minutes well invested.
If you aren’t paying $100+ for a dressed hub or $25+ for a bearing it’s not made in the USA.