| 摘要 |
Embodiments provide for planetary gearing systems with ring gears comprising cylindrical tooth forms arrayed from a central axis and encompassing at least one planetary sprocket and a sun gear. The sun and ring gears have cylindrical tooth forms. The planetary sprocket teeth are aligned for engagement with at least one of the sun gear and ring gear cylindrical tooth forms at a contact radius from the central axis selected as a function of the sprocket tooth common involute gear shape, the sprocket radius, the sprocket tooth pitch, and of the pitch, gear radius and cylindrical form diameter of the selected at least one gear cylindrical tooth forms.
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