齒輪計算機Jun 11, 2018 Basic DimensionsItemSymbolValueModule mNumber of teethzPressure Angle (°) αProfile shiftxReference diameterdBase diameterdbBase radiusdb / 2Tip diameterdaTooth thickness at base (°)ψb Tooth Profile (Involute Curve Equations)X equationY equationZ equationU minU maxU stepU wrapuncheckedV minV maxV stepV wrapunchecked