2. A helical gear has a normal diametral pitch of 12. a nor- mal pressure angle of 20°, 48 teeth, a face width of 1.50 in, and a helix angle of 45°. (a) If the gear transmits 2.50 hp at a speed of 1750 rpm, compute the tangential force, the axial force, and the radial force. (b) If the gear operates with a pinion having 16 teeth. compute the bending stress in the pinion teeth. The power comes from an electric motor, and the drive is to a centrifugal blower. Specify a quality number for the teeth. (c) Specify a suitable material for the pinion and the gear considering both strength and pitting resistance.

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A: Given Data

Q: How would I solve part B?

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Q: What is the pressure angle for gear teeth?  Why would some gears have different pressure angles?

A: Solution:

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A:

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A: Option 5 is correct.

Q: State two advantages of a compound gear train over a simple gear train

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Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.