Abstract Recently, a new methodology for 5-axis flank computer numerically controlled (CNC) machining, called double-flank has been introduced (see “5-axis CNC machining of spiral bevel gears via custom-shaped milling tools—Part I: Modeling and simulation”). Certain geometries, such as curved teeth gear, admit this approach where the tool tangential contact with material block on two sides, yie...

With the increasing speed of aviation gear, windage loss has been main component power loss. Reducing is great significance to improving transmission efficiency spiral bevel gear. Firstly, calculation model enclosed gear was established, and basic physical mechanism illustrated by numerical simulation, so as obtain mechanical energy characteristics Then, influence geometry clearance parameters ...