Quote:
Originally Posted by Ether
Since these rollers are so small, why not just pour the high-traction material right over the Teflon tube?
Find some Teflon tubing with an ID just slightly larger than the OD of your axle bolt, so the bolt slides inside without binding or excessive radial free play.
See sketch.
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I believe the issue is getting the tractive substance to adhere to the teflon tube.