A right angle speed reducer uses hardened alloy steel precision cut bevel gears. The transmission ratio is 5 to 1 and the pinion rotates at 900 rpm while transmitting 50 hp. If the teeth are of 20^∘ full depth form and the pinion has a diameter of 4 (1)/(2) in., what must be the diametral pitch and width of the face of the gears, using the Lewis equation? sO=30,000 psi for both gears. What brinell hardness is required for satisfactory wear? Determine the endurance load, wear load, and dynamic lo

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