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  1. Ken Heg

    Plastic selection

    Thank you tugboat.
  2. Ken Heg

    Plastic selection

    Sorry, more details. It is an injection-molded box that now needs to be clear. It has a hole into which a rotating pin is inserted. I can be grease lubed. Polyurethane makes injection molding difficult. So I am back to wondering if PC can stand up as well as Delrin has for this component.
  3. Ken Heg

    Plastic selection

    Yes, polycarbonate. I have been producing the part successfully for many years using Delrin (POM). Need to switch material because now it must be a clear material. Just wondering if PC will do the job knowing that delrin was successful.
  4. Ken Heg

    Plastic selection

    Need to spin a brass pin in plastic as a bearing. Pin is brass. Which plastic is better for wear resistance, PC or POM? Pin dia is .093 inch Very low radial load. Speed is 4,000 RPM

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