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Study of satellite spur and bevel gear mechanism 1

Inputs: green center crank and brown worm.

Three spur gears are of the same tooth number.

Two bevel gears are of the same tooth number.

The orange spur and bevel gears are fixed together.

Axes of the red bar, the yellow and green shafts are concurrent.

Red spatial curve is traced by the red bar point.

The curve lies on a sphere.

The mechanism can be applied for burnishing internal spherical surfaces.

Using the red bar as a cutter is impposible because the angle between the cutter edge and the red curve changes considerably during motion.

If the brown worm is kept immobile, the red bar point traces a spatial figure-eight shaped curve (spherical lemniscate).

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