Addendum coefficient (finished gear)

Symbol haP*
Unit -
Attribute-ID addendum coefficient basic rack
Numeric ID 755
Value Type PMDouble

The addendum coefficient haP* of the reference gear tooth profile is the addendum coefficient haP relative to the normal module mn of the reference profile.

haP*=haPmn

haP* addendum coefficient of the reference gear tooth profile
haP addendum coefficient 
mn normal module

A typical value for haP* for non-topping tools is 1.0.