Posted by Tony Sichmeller on May 19, 2006 at 17:44:38:
The David Brown Worm gear hobs do not have information on the Normal Pressure Angle. We have data showing the Tangential Pressure Angle for these hobs. How is the Normal Pressure Angle derived from the Tangential Pressure Angle? The David Brown Tangential Pressure angle is not the same as the AGMA Transverse Pressure Angle, nor is it the same as Buckingham's Axial Pressure Angle. Need a formula to convert the David Brown Tangential Pressure Angle to a Normal Pressure Angle.
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