Assume that all gear blanks are solid circular cylinders unless specified otherwise.
Suppose that a pair of quality class 6 gears is designed to operate with the following characteristics:
Pressure angle = 25°
Teeth are AGMA full depth, equal addendum with HPSTC loading
Diametral pitch = 6 teeth per inch
Face width = 2.00 inches
Transmitted load = 400 lbf.
Pitch line velocity = 1200 ft/min
The pinion has 14 teeth and is made of ASTM B148 Bronze while the gear has 35 teeth and is made of grade 1, through-hardened steel with Brinell hardness of 200. The gears have solid disks and operate at a temperature of no more than 180°F. If the factor of safety SF is 2.0, determine if the gear set is safe.
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