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  1. #1
    Join Date
    Feb 2019
    Location
    Adelaide, Australia
    Posts
    54

    Default What is this tool?

    Does anyone know what this is?

    It doesn’t have teeth nor a razor sharp edge.

    It is flat along one face and convex on the other.




    77BE7796-63B1-4B36-A457-011A703CF307.jpg


    8B83ADB8-323C-4328-AF55-5DDA0C681BB0.jpg

    Cheers

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  3. #2
    Join Date
    Jun 2010
    Location
    Bundaberg
    Age
    54
    Posts
    3,402

    Default

    It’s a bearing scraper for scraping inside large diameter plane journal bearings. The reason it doesn’t have sharp edges is because it is as blunt as a very blunt thing!

    The upper curved surface will have finely ground edges for the last couple of mm before they meet with the flat bottom. Those ground edges would have been honed first, then the flat bottom was honed. The intersecting edge would have been razor sharp at that point, ready for use.
    Nothing succeeds like a budgie without a beak.

  4. #3
    Join Date
    Feb 2019
    Location
    Adelaide, Australia
    Posts
    54

    Default

    Hi Chief Tiff,
    Thank-you for your reply. Sounds like an interesting tool!! I hope to put it to use one-day.

    Cheers,
    Cam.

  5. #4
    Join Date
    Sep 2008
    Location
    Petone, NZ
    Age
    68
    Posts
    2,808

    Default

    Quote Originally Posted by Chief Tiff View Post
    It’s a bearing scraper for scraping inside large diameter plane journal bearings...
    I'm sure he means plain journal bearings - as in whitemetal/babbit bearings (as opposed to ball/roller bearings).

    Cheers, Vann.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

  6. #5
    Join Date
    Jun 2010
    Location
    Bundaberg
    Age
    54
    Posts
    3,402

    Default

    Quote Originally Posted by Vann View Post
    I'm sure he means plain journal bearings - as in whitemetal/babbit bearings (as opposed to ball/roller bearings).

    Cheers, Vann.
    Oops
    Nothing succeeds like a budgie without a beak.

  7. #6
    Join Date
    May 2009
    Location
    Sapphire Coast NSW
    Age
    69
    Posts
    434

    Default

    Quote Originally Posted by Chief Tiff View Post
    Oops
    you had me convinced with “plane” ... i have one of those (never knew what it was for) from my father’s tools .. he worked for CAC ( commonwealths aircraft something) during the second world war.

    regards david

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