| Parameter | Formula (Excel Syntax) | Description | | :--- | :--- | :--- | | | =B2 * B3 | Module $\times$ Teeth | | Base Circle Dia ($d_b$) | =B2 * B3 * COS(RADIANS(B4)) | $d \times \cos(\alpha)$ | | Pitch Circle Dia ($d_w$) | =B2 * B3 | (Assuming no center distance modification) | | Base Pitch ($p_b$) | =B2 * PI() * COS(RADIANS(B4)) | Circumferential pitch on base circle |
