it is easier to pull the lH sheave than the rh sprocket. It comes off as an assy. You would not be able to slide the brg from one side to other without a lot of work.
As I recall, you take out the cap screws holding the short splined shaft on. Under that is lots of grease (hopefully) and a big nut. Remove the nut and the sheave assembly comes off together as Tbran pointed out. Should be pretty easy. Good luck!
