a (mm) b (mm) D (mm) dD dD2 r (mm) dr dr28.4 5.9 2.5 -0.275 0.075625 7.15 -0.3625 0.131406258.8 5.9 2.9 0.125 0.015625 7.35 -0.1625 0.02640625

10.6 6 4.6 1.825 3.330625 8.3 0.7875 0.620156259.6 6.2 3.4 0.625 0.390625 7.9 0.3875 0.150156257.8 5.3 2.5 -0.275 0.075625 6.55 -0.9625 0.926406257.1 6 1.1 -1.675 2.805625 6.55 -0.9625 0.92640625

10.3 7.2 3.1 0.325 0.105625 8.75 1.2375 1.531406258.6 6.5 2.1 -0.675 0.455625 7.55 0.0375 0.00140625

Sumatoria 22.2 7.255 60.1 4.31375

Dm 2.775 rm 7.5125

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