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In: Mechanical Engineering

An external gear has a module of 4, 52 teeth in the gear, 28 teeth in...

An external gear has a module of 4, 52 teeth in the gear, 28 teeth in the pinion, a pressure angle of 20°, pinion rotational speed of 1500 rpm, face width of 20 mm, and gear and pinion material having modulus of elasticity of 206 GPa and Poisson’s ratio of 0.3. The Hertzian contact pressure is 0.980 GPa. The lubricant used has an absolute viscosity of 0.3 Pa-s and pressure viscosity coefficient of 2.2 x 10-8 m2/N. The root-mean-square surface roughness for both the pinion and gear is 0.1 µm. Determine the following:

  1. Transmitted power
  2. Minimum film thickness
  3. The film parameter

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Expert Solution

samet mamat answered 4 months ago
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