UHMW is incredible material. We used it for water bearings in hydro units weighing tons. I normally do a lot of snow blowing and the first set I made lasted 5 years. They would have lasted longer but I was making a set for a friend so I made a new set for me at the same time. I also wanted to shape the edges but in the end I don't think that was as important as I thought it was. Steel would never wear out soooo...[/QUOTEW
What thickness of the UHMW did you use?
I made them first with 1" material (that's what I had) and after trying them a bit I decided it left too much snow so I ran them over a jointer or put them through the planer and they ended up at about 5/8". These worked well so when I made the new ones I used 5/8" material, although 1/2" would work too. It all depends on how fussy one is with the amount of snow left. I hate changing shear bolts so I'll err on the thicker side. As a side note, these would be excellent for people who don't want to mar their pavement or other hard surface.