Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations SSS148 on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by Birley

  1. Birley

    Machining plastic and brass

    Hello Thank you for your replies. The slip ring on a multi cylinder magneto has the brass segment set into the plastic when it is moulded the segment is stepped to hold it fast. This type of slip ring differs from an alternator slip ring because 3/4 of the surface diameter the brush runs on is...
  2. Birley

    Machining plastic and brass

    No the item is finished when turned. The slip ring with the brass segment rotates with the HT coil on the armature, a carbon brush runs on the turned surface and distributes the spark, the plastic acts as insulation. Mick.
  3. Birley

    Machining plastic and brass

    Hi I hope you can help me I rebuild old magnetos and have to make a lot of spares myself as they are out of production, I have a problem with the HT slip rings I produce which consist of a plastic moulding with a brass segment set into it. My metal supplier has sold me a very much softer brass...

Part and Inventory Search