- Joined
- Sep 22, 2010
- Messages
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Delrin is the prefered choice of material for rope sheaves, but looked good for what you made.
Walter
Walter
Delrin comes in White and Black Common Name is Acetal.
My supplier usually carries the white, so that is what I keep in stock.
Here is a spec sheet on it.
http://www.plasticsintl.com/datasheets/Delrin_150.pdf
Walter
Just about every sheave on the sailboat is made from Delrin. Very tough material.
There is an immmense amount of friction forces on the sheets (sheets are the lines that are used to control the sails) and over time the delrin gets worn away.
It is what I would probably use for that application.
My other thought would be the hard neoprene rollers that are used for boat trailers, etc. One with a wide Vee would probably work well and would handle the roughness of the chain.
Walter