Question: Two left-handed helical gears connect two shafts (60^{circ}) apart. The normal module is (6 mathrm{~mm}). The larger gear has 60 teeth and the velocity ratio

Two left-handed helical gears connect two shafts \(60^{\circ}\) apart. The normal module is \(6 \mathrm{~mm}\). The larger gear has 60 teeth and the velocity ratio is 0.5 . The centre distance is \(0.3 \mathrm{~m}\). Find the helix angles of the two gears.

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