When cutting teeth for a worm gear, how does one compute the pitch diameter?
A)D + (2 × a)
B).686 × Pa
C) P × N
D) DO - (2 × a)

Question

Quizplus · Accepted Answer

The pitch diameter of a worm gear can be computed as DO - (2 × a), where DO is the outside diameter and a is the addendum. This formula takes into account the reduction of the diameter by twice the addendum to find the effective diameter where the teeth actually engage.

When Cutting Teeth for a Worm Gear, How Does One