This site is selling some Rolled Ball Screws with Nut at a pretty good price:
They are 5/8" diameter screws. My CNC table travel length is approximately 45". My question is will these screws bend, whiplash, or cause any problems when using screws as long as 45"? After all, the diameter is only 5/8" as compared with other screws that are > 1" diameter. Also, how much accuracy difference is there between Rolled and Ground screws? Any comments?