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Thats not a bearing Ollie,,, this is

Discussion in 'The Lounge' started by camiswelding, Feb 23, 2006.

  1. camiswelding

    camiswelding 1/2 ton status

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    Found these the other day and I couldnt resist...

    Made in West Germany they are some kind of super high quality specialized bearing.. maybe out of a d9 cat or something

    the smallest is about 5 inchs od... the largest about a FOOT... they are the smoothest bearings I have ever seen..

    anyone have an idea what they might be for?

    bearings.JPG
     
  2. sandawgk5

    sandawgk5 3/4 ton status

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    Expensive paper weight? You know how those Germans are when it comes to engineering things.:D

    Ira
     
  3. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    They could be for anything, but radial aircraft engines (think 1940-50s) have some very large bearings.
     
  4. Esteban86K5

    Esteban86K5 1/2 ton status

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    Ring Roller!!:whistle:

    Them sum biches are HUGE!!!!
     
  5. SkulzNBonz

    SkulzNBonz 1/2 ton status

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    We have some roller bearings that go on the crankshafts of our engines we build that have 7.5" ID's!

    John
     
  6. MattK

    MattK 1/2 ton status

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    i bet thats some real $$$ sittin there.
     
  7. boz42

    boz42 1/2 ton status GMOTM Winner

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    germans build some of the best printing presses & the larger ones have somme really large bearings, older presses used babot (splg) bearings but i would be willing to bet the newer ones use rollers., dunno i have been out of the printing buisness for almost 10 years.
     
  8. wasted wages

    wasted wages 3/4 ton status

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    big bearings,,,

    Installing the "thin-shell" bearings. Crank & rod journals are 38" in diameter and 16" wide: [​IMG]
    The crank sitting in the block (also known as a "gondola-style" bedplate). This is a 10 cylinder version.
    Note the steps by each crank throw that lead down into the crankcase:
    [​IMG]
     
  9. camiswelding

    camiswelding 1/2 ton status

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    showoff....

    just how do you get all those lil japanese guys inside your engine anyway....
     
  10. koldsimer

    koldsimer 1/2 ton status GMOTM Winner

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    Forgive my ignorance wasted wages but what exactly kind of engine is that? Any more pics or info?
     
  11. Jagged

    Jagged 1 ton status

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    It's a diesel! ;)
     
  12. DEMON44

    DEMON44 Low-Tech Redneck

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    Wartsila-Sulzer RTA96-C

    They're for freighters, ocean going cargo vessels. Burn bunker oil.

    3 stories tall, 14 cylinder version crankshaft weighs 300 tons.

    http://www.bath.ac.uk/~ccsshb/12cyl/



    And we use bearings on oilfield Coiled Tubeing unit reels that have an ID of ~12". I don't ask how much the bearings cost, when a finished unit sells for $2million.
     

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