Posted by BillS on January 02, 2008 at 22:34:09:
In Reply to: Re: Worm vs Helical gear posted by lee on December 19, 2007 at 18:56:56:
I thought about this for a while, but without seeing your formulas for comparison, I didn't want to make unwarranted guesses.
But then, it dawned on me just now that the difference is probably between pins over involute teeth (gear) and pins over a rack profile worm. (Well, the worm is a close approx. to a rack in profile). Anyway, the formulas I use for MOW of a worm are based on assuming a rack form (straight-sided "teeth").
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