Quote:
Originally Posted by hrench
Just remember that the teeth are designed to be in contact at the pitch-circle diameter, not at the outside diameter.
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Isn't that a simplification of what the contact actually looks like. Gears contact along the line of action, which is some angle (the pressure angle) off the line tangent to both pitch diameters.
Quote:
Originally Posted by hrench
So as long as you have 'regular' gears, the outside two percent of the tooth should never be needed as the next tooth is engaged long before it disengages.
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Wont removing that outside bit increase the stress per tooth?