Hi: This is my first post on this forum. I purchased some Virgin Teflon on Ebay recently and I planned to use it for the upper bearing on my 601XL nose gear. The plans call for "Nylon" and it's not structural as far as I can tell. The Teflon seems a little heavier than UHMWPE that I was planning to use. I'm not sure how the Teflon will hold up. Anybody have experience with this? Thank you,