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Computes diameters.

Applies deviations from embedded database.

: [ d_{fe} = d - 2 \cdot m \cdot (h_{fP}^* + \rho_{fP}^ /m) ] where (h_{fP}^ = 0.45 + c^ ), (c^ = 0.25), (\rho_{fP}^* = 0.2) (fillet radius coefficient). din 5480 calculator

: [ e_{\min} = s_{\max} \quad \text{(for fit H/h)} ] For H/h: (e_{\min} = \frac{\pi m}{2} + \text{allowance}) (from tolerance class table)

: [ d_{ae} = d + 2 \cdot m \cdot h_{aP}^* ] with (h_{aP}^* = 0.45) for side fit (DIN 5480-1 Table 1). Computes diameters

Checks interference conditions.

: [ d_b = d \cdot \cos\alpha ]

: (d_{ref}=30) mm, (z=20), α=30°, fit H/h, grade 6 Expected: m=1.5, (d_{ae}=33.3) mm, (d_{fe}=26.25) mm, tooth thickness nominal 2.356 mm, allowance 0 to -0.032 mm.