The material I used is called UHMW and also goes by such trade names as Delrin. It is a self lubricating type polyethylene and has very good wear characteristics. There is no bushing installed and the axle so to speak is just the unthreaded portion of the 3/8 bolt.Very interesting. One question though, do you have a bushing or bearing in them? Curious as that looks comparable to some cutting board material I've used and I had issues with wear points where an axel goes through them. I ended up finding some inline skate wheels that worked in place after the rollers wore enough (not in a snowblower setting) to develop slop in the axel area.
I thought about using a bronze bushing when i built them but I figured that the plastic would be less prone to freezing then the brass/bronze busing against the stainless steel axle. This particular polyethylene is self lubricating and very wear resistant much more so than carbon steel.Carl
Worst case, if you had any issues in the future, it would be a simple mod to add a bronze bushing for the axels. Easy to find on the web or home supply stores, pretty sure even Ace Hdware carries them.
Regardless, looks great to me.
Would the sealed bearings in skateboard wheels freeze up?
I did not buy them i built them using an old pair of skids.Carl - Where did you buy these "Roller Skids?"
CarlB, very nice mod! I like the attention to detail you put into it, with packing the shaft hole with grease, and adding o-rings at the sides to help keep water out.The material I used is called UHMW and also goes by such trade names as Delrin. It is a self lubricating type polyethylene and has very good wear characteristics. There is no bushing installed and the axle so to speak is just the unthreaded portion of the 3/8 bolt.