Tooth Proportions for Fine- Pitch Spur and Helical Gearing
|Publication Date:||1 January 2007|
This standard is applicable to external spur and helical gears with diametral pitch of 20 through 120 and a profile angle of 20 degrees.
It only applies to standard gears with 24 teeth or more; enlarged pinions with 9 through 23 teeth; and reduced gears for meshing with enlarged pinions at standard center distances.
Much of this same information is applicable to internal gears