For clearance between the two gears in mesh 7 if the

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In gear tooth design, why the dedendum is higher than the addendum? For clearance between the two gears in mesh (7) If the bevel pinion is driver, identify the direction of radial, axial and tangential components of force on the pinion and gear. Forces on the pinion: 𝐹𝐹 𝑟𝑟 + 𝑌𝑌 , 𝐹𝐹 𝑎𝑎 + 𝑋𝑋 , 𝐹𝐹 𝑡𝑡 = −𝑍𝑍 Forces on the gear: 𝐹𝐹 𝑟𝑟 ∶ −𝑋𝑋 , 𝐹𝐹 𝑎𝑎 ∶ −𝑌𝑌 , 𝐹𝐹 𝑡𝑡 = + 𝑍𝑍
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