Design safety of the tooth root

Symbol SF,Entwurf
Unit -
Attribute-ID vdi_2736_2014_initial_design_design_safety_factor_root
Numeric ID 10620
Value Type PMDouble

According to VDI 2736, SF,Entwurf should be in the range between 2.0 and 3.0.

Source: VDI 2736:2014-06 Sheet 2