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Tapered roller bearing insert removal

Discussion in 'XJ Technical Chat' started by Franz, Sep 17, 2021.

  1. Franz

    Franz Well-Known Member

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    Do any of you know how to remove these. I have new bearings. The old inserts are not damaged. It is okay to fit the new bearings in the old race inserts if they cannot be removed?

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    Last edited: Sep 17, 2021
  2. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    You will need a long drift, or a sacrificial flat-bladed screwdriver. The races should not be reused unless you have no other choice, as any wear on the races will increase the rate of wear on the new rollers.
    Tap them out the same way that the original ball bearing races were removed, tap them out from the back.
     
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  3. Jetfixer

    Jetfixer Well-Known Member

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    Put new races in the freezer for a couple of hours and heat up tube with a heat gun , makes putting races in much easier.
     
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  4. JCH

    JCH Active Member

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    Does anyone know what kind of grease Yamaha used on original wheel bearings ?
     
  5. Franz

    Franz Well-Known Member

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    The problem I have at the moment is that the top race lip is nearly flush with the inner frame tube. I will try what @Jetfixer and @k-moe stated but for the top one is there an expanding puller I could use like a blind bearing puller. That might work. The bottom one has openings at the front and rear of the frame tube. I need to get a suitable steel bar to catch in those openings so I can hit the back and front of the race.


    Has anyone used one of these?

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    Last edited: Sep 18, 2021
  6. Franz

    Franz Well-Known Member

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    They would have been sealed bearings. Don't know what grease they used.
     
  7. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    High speed wheel bearing grease (usually dyed red).
     
  8. Minimutly

    Minimutly Well-Known Member

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    If you can't get a straight punch to purchase on the edge of the bearing, a puller won't do it..
    Get a welder and run a bead or two inside the bearing. Let it cool and tap it out. Easy.
     
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  9. Franz

    Franz Well-Known Member

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    Cheers Minimutly I can get a stick welder to try that.
     
  10. JCH

    JCH Active Member

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    I believe that Len at XJ 4 EVER sells a tool to remove race ?
     
  11. Franz

    Franz Well-Known Member

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    I have a welder now to get it out but thanks for the information.
     
  12. Jetfixer

    Jetfixer Well-Known Member

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    I just used a long tapered drift to knock our old races .
     
  13. Franz

    Franz Well-Known Member

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    Is that the tapered ones or were the original ones ball races?
     
  14. Jetfixer

    Jetfixer Well-Known Member

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    They were the original ball type races .
     
  15. Franz

    Franz Well-Known Member

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    Cheers Jetfixer, I will go back to this, I am trying to repair my base pickup just now one of my magnets broke :eek: . I am getting a signal from the broken one and the good one when I pass steel bar over them. As long as the voltages going to the TCI are the same it should be fine.
     
  16. Dan Gardner

    Dan Gardner Well-Known Member Premium Member

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    Has anyone ever successfully changed the steering head bearings on an 85/86 XJ700 that originally came with roller bearings? There is an inner race pressed onto the triple tree and an outer race pressed into the steering head.

    I tried to removed the races from a junk frame. Absolutely no luck. I'm not happy with the steering on my XJ700N, so since new bearings aren't all that expensive I figured I would just get a new set from @chacal and call it good. So I happened to have a junk frame to give the removal a test run, and so far no joy.
     
  17. JCH

    JCH Active Member

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    Did Len have a tool for that procedure ?
     
  18. Franz

    Franz Well-Known Member

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    750 machine this might help.

     
  19. Dan Gardner

    Dan Gardner Well-Known Member Premium Member

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    I've replaced the ball bearings in the steering head of my XJ650J - those were a bear to get out, but it was do-able. The XJ700 bearings seem to be a lot more difficult. I've ordered an OTC steering head bearing remover to get a grip on the outer races that are inside the steering head, and a bearing splitter to get a grip on the inner race that is pressed on the triple tree. I will let you know how it goes when I get them and give it another try.
     
  20. Franz

    Franz Well-Known Member

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    I ground down the inner race on the triple tree carefully with my bench grinder after removing the cage and rollers. Inner race was easy to remove then.
     

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