Formula
Rule
Having
To Get
Multiply the outside
Outside diameter and
Number of teeth
diameter by the diametral
the diametral pitch
pitch and subtract 2.
Diametral pitch
Divide 1.5708 by the
Chordal thickness
diametral pitch.
Divide 1 by the diametral
Diametral pitch
Addendum
pitch.
Divide 2 by the diametral
Working depth
Diametral pitch
pitch.
Divide 2.157 by the
Whole depth
Diametral pitch
diametral pitch.
Diametral pitch
Clearance
Divide 0.157 by the
diametral pitch.
AIII-3