| Symbol | khfp |
|---|---|
| Unit | - |
| Attribute-ID | basic_crown_gear_dedendum_factor_iso23509_2016 |
| Numeric ID | 17284 |
| Value Type | PMDouble |
The basic crown gear dedendum factor khfp is defined on the basic rack tooth profile and determines the mean tooth depth. By default, it has the value khap= 1.0. With an increasing basic crown gear dedendum factor khfp and a constant basic crown gear addendum factor khap, the clearance increases.
Together with the basic crown gear addendum factor khap, profile shift coefficient xhm1 and theoretical thickness modification coefficient xsmn, it describes the tooth profile according to data type I in ISO 23509 (according to European standards). The dimensionless factors are related to the mean normal module mmn.