Trying to identify small elec part

Discussion in 'General Electronics Chat' started by erik_n, Sep 13, 2016.

  1. erik_n

    Thread Starter New Member

    Sep 13, 2016
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    Greetings folks.

    I'm attempting to repair an item and need to replace this conductive springy-looking thing.
    Tough to do without knowing what it's called. I just need the spring part, but I attached a picture of it mounted on the conductive post thingy that it slides onto. Sorry for all the non-technical jargon. Thanks!

    DSC_0035.JPG DSC_0040.JPG
     
  2. erik_n

    Thread Starter New Member

    Sep 13, 2016
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    I'm basically just looking for the name of the part, but if you can point me in the direction of where I could find it, that would be unexpectedly helpful. Thanks again!
     
  3. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    What makes it not just a spring?
     
  4. erik_n

    Thread Starter New Member

    Sep 13, 2016
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    Well, because it's part of an assembly that carries a current coupled, and the fact that I can't just stick any spring in there, I guess I figured there's a more descriptive name for it.

    If you look at the first picture, the black wire coming in from the back powers the spring, which makes contact with a conductive track on a rotor on a wheel hub. Is there a name for that whole assembly?
     
  5. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    What's wrong with the one you have got? Did it originally have a ball bearing on the end of it which has fallen out?

    You would have to replace it with a spring with the same dimensions and spring rate *how stiff it is).
    I still see nothing which makes it other than just a spring.
     
  6. #12

    Expert

    Nov 30, 2010
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    It's called a, "spring". Look up the make and model of the thing it goes in. Get a parts drawing from the manufacturer. Order the thingy. You will know which one to order because the parts list will say, "spring".
     
  7. erik_n

    Thread Starter New Member

    Sep 13, 2016
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    No, the one pictured is from the other side of the rotor. I need 2 to complete the circuit.

    But it would also have to be made of something conductive, right? I imagine it's not something that would be stocked with the springs/connectors at a chain hardware store.
     
  8. erik_n

    Thread Starter New Member

    Sep 13, 2016
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    The manufacturer is the first place I tried. It's a dead end, Thanks though.
     
  9. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    The vast majority of springs are made of metal. Metals conduct electricity.
     
  10. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    Any bog standard spring of similar dimensions (or cut down from a longer spring) will probably do. It doesn't look as though it's capable of carrying much current, so I doubt it matters exactly what it's made from (unless it's in a damp/wet environment requiring a corrosion-proof finish).
     
  11. hp1729

    Well-Known Member

    Nov 23, 2015
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    Wow! Good camera! Where do you live? Is there a lot of manufacturing in your area. Is there a spring manufacturer or distributor? Take dimensions and wire thickness and force to move it down to them or the Internet.
     
  12. ian field

    Distinguished Member

    Oct 27, 2012
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    Not much - it may have plating optimised for electrical conductivity rather than corrosion resistance.

    If they were *THAT* worried about conductivity, they'd go for gold or silver plating - silver is easy to identify when it blackens with exposure to air.
     
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