Posted by BillS on April 24, 2012 at 13:59:10:
In Reply to: Re: first helical gear posted by Josh on April 24, 2012 at 13:07:05:
Josh, I am thinking that even when profile is shifted, the pitch circle diameter doesn't change, so the CC distance between shafts will still be the sum of pitch diameters divided by 2.
If a shaper cut gear is discussed, that would not be a rack form generated gear with true involute profile, and as I recall, pitch circles don't necessarily touch in that case.
The pitch diameter does change when HA changes, but I am assuming the same HA for both gears (parallel shafts).
I'm no expert when it comes to gear design - how would you approach the problem of finding HA based on the givens?
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