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  1. #1
    Join Date
    Apr 2009
    Location
    Wollongong
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    14

    Default Sheraton Change Gears - curiosity

    What is the usual bore for Sheraton change gears?

    I see change gears for Sheraton/Hercus/Southbend advertised as though they are interchangeable, but I also see them advertised as having either 5/8 or 9/16 bore. The few that I have for the Sheraton are 5/8 inch, the ones that came with an old and eccentric Southbend here are 9/16.

    What is the usual story? What size goes with what models?

    Greg

  2. #2
    Dave J Guest

    Default

    Pipeclay is our gear expert and knows all about these lathes and what goes with what, I am sure he will reply once he sees your post.

    He doesn't advertise, but he can make pretty much any gear you want if you contact him. From what I have seen, his prices are good for the amount of work and effort he puts into them.

    Dave

  3. #3
    Join Date
    Jul 2008
    Location
    near Warragul, Victoria
    Posts
    3,718

    Default Sheraton

    They are 9/16" bore gears on my Sheraton ..model AR ..what model do you have ?

  4. #4
    Join Date
    Apr 2009
    Location
    Wollongong
    Posts
    14

    Default

    Quote Originally Posted by morrisman View Post
    They are 9/16" bore gears on my Sheraton ..model AR ..what model do you have ?
    Change gears and no power cross feed - probably a model C if they use the same scheme as Southbend.

  5. #5
    Join Date
    Jun 2007
    Location
    sydney ( st marys )
    Age
    64
    Posts
    4,887

    Default

    You should find that the change gears are a 9/16" bore as earlier mentioned,the reverse tumblers will be 5/8" as well as any compound gears and idler gears.

    The compounds and idlers will take a bush with a bore of 7/16".

    The compound and idlers are used only on the Banjo bracket,all the other gears will be keyed and used on the stud or screw shaft.

  6. #6
    Join Date
    Apr 2009
    Location
    Wollongong
    Posts
    14

    Default

    Quote Originally Posted by pipeclay View Post
    You should find that the change gears are a 9/16" bore as earlier mentioned,the reverse tumblers will be 5/8" as well as any compound gears and idler gears.

    The compounds and idlers will take a bush with a bore of 7/16".

    The compound and idlers are used only on the Banjo bracket,all the other gears will be keyed and used on the stud or screw shaft.
    Ahhhh... thank you. Now I see. I am missing the compound gears and have a couple of 80 tooth idlers (well, one has got 80 written on it) and and a stack of keyed 9/16" gears from the SoutBend. When I get to thread cutting I'll need some more (I suspect expensive) gears, but that's a while away yet.

    Greg

  7. #7
    Join Date
    Jun 2007
    Location
    sydney ( st marys )
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    64
    Posts
    4,887

    Default

    Your 80 tooth idler/s should have a boss on them giving an overall width of 13/16".

  8. #8
    Join Date
    Apr 2009
    Location
    Wollongong
    Posts
    14

    Default

    Quote Originally Posted by pipeclay View Post
    Your 80 tooth idler/s should have a boss on them giving an overall width of 13/16".
    Yes, the Sheraton one certainly does and the bush has to be put in with the flange on the banjo side to make everything line up nicely. I'm not sure about the SouthBend idler, I'll have a look next time I can get some time.

    Greg

  9. #9
    Join Date
    Jun 2007
    Location
    sydney ( st marys )
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    64
    Posts
    4,887

    Default

    They will both be the same.

  10. #10
    Join Date
    Mar 2012
    Location
    Burrum Heads QLD Australia
    Posts
    1

    Default

    Just starting to try some thread cutting with my newly acquired Sheraton model "c", so found Pipeclay's advice invaluable.
    Thanks

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