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Cat d5c bore spec

Discussion in 'Dozers' started by Tyler d4c, Dec 4, 2019.

  1. Tyler d4c

    Tyler d4c Well-Known Member

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    I need the spec for the barrel end bore for the spherical bearing in the tilt cylinder. I cant seem to locate it 7ps prefix. Thanks for the help
     
  2. Nige

    Nige Senior Member

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    You mean this one..?
    upload_2019-12-4_6-42-4.png
     
  3. Tyler d4c

    Tyler d4c Well-Known Member

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  4. Nige

    Nige Senior Member

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    I can't find a spec for it. It'll be buried somewhere in a dealer-only rebuild spec or in a factory engineering drawing.
    Ballpark figure. Get hold of a new 4D-0298 spherical bearing and measure the outside diameter with a micrometer. Rebuild the bearing bore to that measurement MINUS about 0.001" per inch of outside diameter of the bearing.

    So for example if the bearing measures 4.000" O/D, machine the bore to 4.000 - (4 x 0.001) = 3.996".
    You'll need some dry ice or similar to shrink the new bearing in order to get it in.
    Sorry that's the best I can come up with.
     
    Last edited: Dec 4, 2019
  5. Tyler d4c

    Tyler d4c Well-Known Member

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    That's the plan was just trying to get ahead of the 8 ball. Thanks anyhow.
     
  6. kshansen

    kshansen Senior Member

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    That's a good plan but I would add that many of those spherical bearings are assembled by "cracking" the outer ring on one side to let it spread a bit to allow the inner section to pop in. So when measuring the O.D. for the boring of the housing I would be tempted to put a heavy-duty hose clamp around the outside and tighten it good to see if the measurement changes. Might be a little fussy but for the time it takes not a big deal.