Cannondaleriders

is the threaded piece damaged?

no it was turning with the nut but finally it gave up and the thread stopped spinning and the nut came off.
also what would be the next step to get the axle out and how do i get the sprocket hub off?
thanks

Looking at the picture , you remove the nut, the two half-rings the guy is holding, remove the threaded part of the lock nut, and then the brake hub should slide right off too. I usually have to work at it because it seems like the splines get messed up just enough to make removal difficult. It all should slide right off. At this point, you should be able to remove the axle pulling it out towards the sprocket side. Sometimes I have to use a big hammer. Not surprisingly, I usually have to replace the axle bearings while I'm at it.....

now my axle is half way out and stuck why is this?

Try some lube and make sure you are holding the axle level as you pull it out of the carrier. It has to slide past dual bearings and it is a tight fit. Don't worry, next time will be so much easier!

What's the easiest way to take off the sprocket?

Really just the circle clip?

Are you wanting to take the sprocket hub off? Do you need it for your replacement axle?

If so, you will need to move the hub towards the center of the axle slightly to allow the circle clip to be removed. Then you can slide the hub off the axle towards the wheel hub side.

I had to use a press and heat the hub to get mine off but it slid right on to my DuraBlue.