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needle bearings


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    I have a problem with one of my distributors. While moving from bin #7 to #8 it encounters to much resistance so it stops,...resulting in a pin-jam. I have tried to adjust the spring tension, replaced the universal joint, the U-profile next to the gearbox. Nothing worked yet.

    I wondered if perhaps the needle bearings inside the distributor jacket are broke but i cant get them out of there.

    Anyone out there with a hint or trick to get them out so i can take a closer look on them ?


  • #2
    Re: needle bearings

    Check to see if your turnpan isnt being jammed against your Pinwheel. Sounds like thats your problem because there isnt much going on to get your dist. from the 7 to 8. Either that or a stiff roller bearing on your cam followers.

    Good Luck

    Well thats just like your opinion man...


    • #3
      Re: needle bearings

      Check your dist. support........It must be at 90 degrees for the dist to go side to side without binding.



      • #4
        Re: needle bearings

        Cabber, check to see if your index followers may be catching a spoke on your index cam.

        Here's a little trick to leveling your dist support.

        First, make sure your carriage is centered with the 5 and 1 in bins. (use safety link to adjust)

        2 remove the lateral drive spring from your diatributor.
        If your dist sways to the left (10 pin side)
        adjust as follows.
        (TURN PIT OFF)
        a. Loosen the two 5/16 bolts at the top of the dist support weldment.
        (with the pit running)
        b. using a pipe wrench or large crescent wrench, grab the support weldment at the botton of the support (7 pin side) and push down until carriage drifts back to the #1 bin position.
        c. while holding pipe wrench tighten the two 5/16 bolts at the top of the weldment.
        d. reattach your lateral drive spring.

        You may need two people to complete this leveling but it goes quickly.
        your machine may not be level sitting on the slab so it is proper to do this procedure so that the dist is level with the machine.
        Pinspotters do not break down when they are not running!


        • #5
          Re: needle bearings

          Also check your linear arm as it goes down (7 to 8). At this point it gets very close to the distributor support channel (new style). If you have the older style support, which is a casting and a tube, there is plenty of clearance.


          • #6
            Re: needle bearings

            it may also be a groove worn in the distributor shaft that the needle bearings fit around. take dist off sand where the needle bearings use to sit (you'll see where the needle bearings contacted the shaft/post for decades) either file/sand any grooves off the shaft, or turn it upside down.

            or as deadwood said, its rubbing against kidney or pinwheel.


            • #7
              Re: needle bearings

              * update * [img]/content/btubb/images/%%GRAEMLIN_URL%%/smile.gif[/img]

              I found out that the "closed end bearing" was completely worn out. Still wondering now why that only caused so much friction while moving from #7 to #8.

              Replaced the bearing, centered it the 'mike stalker' way and now it runs smoothly again.

              Thanks for your cooperation !


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