jwzFeb 27

Let Friction Ring.

Dear Lazyweb, I have this pulley wheel, 50mm inside diameter, 4mm groove. I need a rubber traction ring to go inside it. I cannot find anyone who will sell this to me. The ring must be flat or concave, not round like a typical...
https://jwz.org/b/yk33

Show threadHart of the Wud
@jwz Could you take a strip of 4mm toothed-belt / timing belt and glue it in there with the teeth facing out of the groove? It should provide enough friction and hold up well but it might also wear down your rope.
Feb 27 at 8:32pmWeb
Show threadjwzFeb 27
@praxeology I tried that and it was impossible to stretch the belt enough to get it over the lip.
Show threadtwigs  Feb 27
@jwz @praxeology if thinking of gluing, maybe just cut the belt, measure in place for the exactly right length and glue it down there with contact cement ?
Show threadjwzFeb 27
@Primavera @praxeology There is not a hope in hell of that standing up over time.