Quote
cdru
What type of bearings are you using? And what are the tolerances of the rods that you're using? I'd say that is just as important if not more important than just the hardness. And what country are you in? There's a global marketplace out there you know...
I will use LM8UU bearings, shaft tolerances are h9.
About global marketplace, shipping prices exceed actual smooth rod's price up to 5 times. So you know..