For a helical gear with N actual teeth and a helix angle psi, what is the formula for its virtual number of teeth N'?
Explanation
The concept of 'virtual number of teeth' is used in helical gear design to analyze the tooth's strength as if it were a spur gear. The formula N' = N / cos^3(psi) calculates the number of teeth on this equivalent spur gear, which has a larger pitch radius due to the helix angle.
Other questions
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