We make custom sheaves, anchor rollers, rudder bushings etc from black acetal (see data sheet)
We produce these in our own US production facilities so can produce other sizes and shapes.
Send us a sketch, we will do a CAD drawing for you to verify and for your future records.
I am on Facebook at: https://www.facebook.com/don.green.969
Let us know the following details:
1/ Line diameter
2/ Measure the sheave end diameter
3/ Measure the length between 2 sides
4/ Use calipers and measure the diameter of the bolt or spacer that runs through the center hole. Do not measure the hole in the old roller as it will be worn and probably incorrect.
5/ Send the information and your details to us via the form here: http://dreamgreen.org/contact
6/ We will send you a quote within 24 hours

Replacement Harken Genoa rollers used on the Lagoon 380

Replacement Lewmar Genoa rollers used on the Lagoon 380 S2 from about 2008 on wards.
For a detailed comparison of bushings please see Bronze vs Plastic
We inventory Acetal material up to 6" diameter. Custom sheaves typically cost between $22 and $40, anchor roller sheaves are more.
Comments
Standard shipping to germany went fast and I could pay the customs duty at the postman.
Thanks Don.