Din 5480 Spline Calculator Excel Verified Jun 2026

Without verification, you risk:

Excel Formula: =dB−(0.2×m)Excel Formula: equals d cap B minus open paren 0.2 cross m close paren 5. Root Diameter (Shaft - The bottom diameter of the shaft's teeth valleys.

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Many “free” calculators ignore profile shift. Always run these three verification tests:

What truly distinguishes DIN 5480 from other spline standards is its reliance on that are independent of the module. This design strategy allows an optimal fit to standard ball and roller bearing diameters and significantly reduces the number of different tools required for manufacturing. The reference diameter is not the same as the major or minor diameter of the spline; rather, it is a nominal dimension used to determine the tooth interlock of a shaft and hub splined connection. Without verification, you risk: Excel Formula: =dB−(0

db=d×cos(30∘)d sub b equals d cross cosine open paren 30 raised to the composed with power close paren

Before deploying your calculator, test it against verified data. Cross-reference your Excel outputs with the official DIN 5480 printed tables for a This design strategy allows an optimal fit to

inv(α_m) = (π/(2×z)) + (2×x×tan(α_ref)/z) + inv(α_ref) - (d_pin/(m×z×cos(α_ref)) - (π/2×z))