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Fitting problem with shaft

  1. May 17, 2010 #1
    Hi,

    I have a DC motor that have these dimensions: http://www.micromotorssrl.com/motor_l149/L149.pdf [Broken] and the problem that i have is to make the "D-hole" in a solid 6mm steel shaft. At the bottom of the hole i was planing to put a neodymium magnet so that you easily could remove and put back the shaft. I don´t have access to industrial tools.

    Anyone have any smart suggestions how to do this o anyther fast way to mount the shaft? Is the only way to do it to mold it?

    Best Regards,
    Flux110
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. May 17, 2010 #2

    Q_Goest

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    Hi flux,
    this isn't clear to me. Do you have a motor with a shaft that has a flat spot on it as shown in the link? Are you trying to put a D shaped hole into a pully or something so the motor can drive it? Not sure what the magnet is for either. If you're trying to make a D shaped hole, the easy thing to do would be to make a round hole and put a set screw on the flat spot. Maybe you can elaborate on what it is you're trying to do.
     
  4. May 17, 2010 #3
    Hi Q_Goest,

    So i have a a motor with a shaft that has a flat spot on in as shown in the .pdf.
    And now i want to make a shaft to connect to the motorshaft that has the dimensions of the attached picture. But the problem is how to make the "D-hole" without to mold it from scratch or an exspensive industrial laser?

    The magnet in the bottom of the "D-hole" is so that the shaft wont drop of when it is connected to the motorshaft in a vertical position and also because its a fast attach system with no screws or nuts.


    "If you're trying to make a D shaped hole, the easy thing to do would be to make a round hole and put a set screw on the flat spot." Didin´t really understod what you meant by this, could you explain more i detail?
     

    Attached Files:

  5. May 17, 2010 #4

    Q_Goest

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    Can you drill a hole for the motor shaft to be inserted into, then drill and tap another hole at 90 degrees for a set screw? See attached.
     

    Attached Files:

  6. May 18, 2010 #5
    That would work but i dont want it that way it will take to long to add and remove the shaft..
    It has to be "user friendly" thats why id like to just have a D-hole to insert it to
     
  7. May 18, 2010 #6

    wolram

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    It may be best for you to get hold of an RS catalogue (mechanical volume), once you have one you can see what your options are.
     
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