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  • Helical gear converted to virtual spur gear? DERIVE RELATION

    Discussion in 'The main mechanical design forum' started by last pharaoh, May 24, 2011.

    1. last pharaoh

      last pharaoh New Member

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      When a Helical gear converted to the virtual spur gear

      how to derive the relation The numbers of teeth of virtual spur gears in the normal section

      Nv = N/cos^3(?), N is the real
      number of teeth, ? is the operating helix angle

      how to derive this relation ?
      Thanks a lot :)
       
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