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7x12 Metal Gears

Discussion in 'GENERAL SHOP RELATED DISCUSSIONS' started by Zoltan, Jan 10, 2017.

  1. Zoltan

    Zoltan United States Active User Active Member

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    If someone has changed both the 7x12 headstock gears hi-lo gears to the metal ones, would you mind telling me how much louder they are than the stock plastic gears?

    I'm replacing the spindle hi-lo gear with a metal one, and I'm trying to decide if I should replace the countershaft one with metal as well, or just leave it plastic.
     
  2. royesses

    royesses United States H-M Supporter - Premium Content H-M Supporter-Premium

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    They are quite a bit louder than the plastic gears. Grease em and listen to the music they make. Anything wrong and they sing a different tune. So much better than the plastic gears in that you should not have to replace them if you have an oops moment. I never broke one of the gears but I chose to upgrade to angular contact bearings and then tapered roller bearings and all my gears are metal. I'd never go back to plastic. I have not found them to be annoying at all.

    Roy
     
    Last edited: Jan 13, 2017
  3. wmgeorge

    wmgeorge United States H-M Supporter - Premium Content H-M Supporter-Premium

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    Does anyone know of a metal replacement hand wheel for the carriage? Its the only plastic on my little Sieg C3 and gee chrome would be nice, but whatever. Thanks.
     
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  4. royesses

    royesses United States H-M Supporter - Premium Content H-M Supporter-Premium

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  5. wmgeorge

    wmgeorge United States H-M Supporter - Premium Content H-M Supporter-Premium

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  6. Zoltan

    Zoltan United States Active User Active Member

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    I'm thinking of going to all metal and using a plastic key for the counter shaft belt pulley as a mechanical "fuse" in the lathe transmission.
     
  7. Zoltan

    Zoltan United States Active User Active Member

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    How often do you need to grease them?
     
  8. royesses

    royesses United States H-M Supporter - Premium Content H-M Supporter-Premium

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    The change gears get lubed when they look dry on the contact surfaces. Not very often. The internal high low gears get loaded pretty well with grease when I put them in. I'd say every 2 years or so grease them.

    Roy
     

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