I've been using a teflon washer on the DFW axle. The problem I'm having is either they are to tight and disform when I try to enlarge the hole to fit the axle better. Is there a better method to use to provide the spacing for the DFW. Also, should the spacer/washer be tight or loose on the axle?
DFW Teflon Washer Spacer
- Thread starter aircooled
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Cut the DFW back further and use a thicker washer. I run mine tight and I run alot of Delrin these days instead of Teflon.
Exactly John... I think on the rears Teflon works great and it is easy. The wheels don't ride on it and for the occassional tap during a wiggle it serves its purpose. But with the DFW it just seems too soft to me so I often use Delrin. My Street Pro from Nationals had black Delrin glued into the body, dfw and rears. That being said I really haven't haven't seen a difference in speed, it just seems right. Delrin also comes mixed with Teflon if you still want to use Teflon.
Acetal Delrin is sold all over and you can find it in in all shapes. I turn it on my lathe so I buy it in rods. Search "Delrin Rod" in Ebay, Amazon, McMaster-Carr and you will find it. Normally it comes in white and Black. I haven't tried to find washers made from Delrin, but I am sure someone makes them.
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http://www.mcmaster.com/#8574kac/=l5xfcm
Look at the Coefficient of Friction of the different materials. Acetal PTFE-filled Delrin acetal resin may be a good choice.
Look at the Coefficient of Friction of the different materials. Acetal PTFE-filled Delrin acetal resin may be a good choice.
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