Our newest offering uses a completely different method of production. In the past we used injection molding to make our Delrin pulley bodies. This is a reliable way to get a perfect body every time. But issues can pop up if the temperature of humidity changes at all during the molding. Not too big a problem but if this happens, the pulley body could wear out a little too quickly.
Our newest pulley switches to machined Delrin. The process is much more complicated and expensive but by machining the Delrin, the material is much stronger and durable. In order to get the shape and tolerances perfect, it takes a skilled person to machine them. Hence the expensive part.
Here is the final pulley, available now at our website:
