An industrial machine utilizes a simple planetary train with 24 teeth in the sun and120
Chapter 16, Problem 16.9(choose chapter or problem)
An industrial machine utilizes a simple planetary train with 24 teeth in the sun and 120 in the ring. The teeth have a 4-mm module in the normal plane, and the helix angle is 0.42 rad. The manufacturer wishes to make available optional gearing using the same arm, a 27-tooth sun and a 111-tooth ring. If teeth of the same module are used, what is the helix angle?
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