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Pipe center DIY

Discussion in 'MACHINE ACCESSORIES (Tables, Vises, Indexers)' started by cascao, Sep 11, 2017.

  1. cascao

    cascao Active User Active Member

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    [​IMG]

    Had a round 5" laminated steel laying around and decided to make a pipe center....

    For the axle, used a drill chuck arbor MT02 to JT4. Machined Jacobs taper to 25mm the internal diameter of my bearing.

    The bearing used is from a car front wheel. It's a double row angular contact ball bearing. It can handle axial and radial loads, It's preloaded (no free play), has good seal and it is cheap. The one I used has 25mm internal diameter, 55mm external and 45mm long.

    [​IMG]

    Machined the 5" steel with 4 jaw chuck since this is the biggest I have. First back side was made with bearing case. Pressed bearing and axle. So, I machined most of the taper (35ยบ).

    [​IMG]

    ***Now comes the odd part***
    For the two finishing pass, I mounted the pipe center in tailstock and driven it by a threaded bar (see pics) This way I ensured best concentricity.

    [​IMG] [​IMG]
    [​IMG]
     
    shadab, jbolt, royesses and 11 others like this.
  2. mmcmdl

    mmcmdl H-M Supporter - Premium Content H-M Supporter-Premium

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    :finger wag:Nice work but I hope you're not wearing those gloves while operating that lathe ! My buddy down the steel mill got a chip caught in his glove , got pulled into the chuck and was killed . .
     
    shadab likes this.
  3. cascao

    cascao Active User Active Member

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    :eek: Nooo, only to remove pipe center, it was hot!
     
  4. cascao

    cascao Active User Active Member

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    Threaded bar screw into pipe center. This hole can be used to remove the axle in future.
    The photo doen't show but during tailstock turning, there was a nut holding the threaded bar in the pipe center. Otherwise the bar will screw into pipe center.
     
    shadab likes this.

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