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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

      May 2011
      Likes Received:
      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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