Din 5480 Spline Calculator Excel New May 2026

To enhance usability, include these VBA macros:

DIN 5480 defines involute splines with a 30° pressure angle (module series) and 37.5°/45° for special cases. Key principles:

Series N – no profile shift (x=0) for z ≥ 21
Series W – profile shift to avoid undercut for z < 21 din 5480 spline calculator excel new

You can add a lookup table for profile shift coefficient x based on z and m.

Example lookup table on Sheet2:

| z_min | z_max | x | |-------|-------|---| | 6 | 9 | 0.45 | | 10 | 12 | 0.35 | | 13 | 16 | 0.25 | | 17 | 20 | 0.15 | | 21+ | | 0.00 |

Then in main sheet:
x = VLOOKUP(B3, Sheet2!A:C, 3, TRUE) To enhance usability, include these VBA macros :

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| Cell | Content (Label) | Cell | Content (Formula/Output) | | :--- | :--- | :--- | :--- | | A16 | Inspection Data | B16 | Value | | A17 | Number of Spans ($k$) | B17 | (Calculated by VBA) | | A18 | Span Measurement ($W_k$) | B18 | (Calculated by VBA) | | A19 | Measurement over Pins ($M$) | B19 | (Calculated by VBA) | | A20 | Pin Diameter ($D_M$) | B20 | (Calculated by VBA) |

Add lookup tables for:

Use VLOOKUP with fit class and module range.

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