Shape of the tooth longitudinal line

Symbol	-
Unit	-
Attribute-ID	skew_or_straight_bevel_gear_iso_23509
Numeric ID	201835
Value Type	PMBoolean

The input parameters for the geometry calculation according to ISO 23509 differ depending on the shape of the tooth longitudinal line:

Spiral, hypoid, or Zerol bevels: This includes all bevel gears with a curved tooth profile, such as spiral bevel gears (without hypoid offset), hypoid gears, and Zerol gears (with a helix angle β_m = 0°). The tooth profile is determined by the cutter head radius r_c0 and the gear cutting method, which can be specified by the number of blade groups z₀.
Skewed or straight bevels: Only straight and skewed bevel gears without hypoid offset can be considered. The cutter head radius r_c0 and the number of blade groups z₀ are not required input parameters.