The "worm gear" on my 6" rotary table doesn't look like a normal "worm gear", that is, a concave set of teeth matched to the plane in which it engages the "worm". My "worm gear' looks like a hobbed helical gear with the form and angle to match the "worm". The table could be higher or lower without changing the way it engages with the worm. I've attached a couple of pics of the gears.
I think this is a typical low end RT. Have any of you had yours apart, and does it have similar gears? If so, what is the proper name for this type of "worm gear". I can't determine exactly what gear form is used either. The OD of the "worm gear" is 3.620" with 90 teeth which gives a DP of 25.414? The "worm" has a pitch of ~ .117".
Thanks in advance.
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