13-16 The double-reduction helical gearset shown in the figure is driven through shaft a at a speed of 700 rev/min. Gears 2 and 3 have a normal diametral pitch of 12 teeth/in, a 30 helix angle, and a normal pressure angle of 20. The second pair of gears in the train, gears 4 and 5, have a normal diametral pitch of 8 teeth/in, a 25 helix angle, and a normal pressure angle of 20. The tooth numbers are: N = 12, N3 = 48, 4 = 16, N5 = 36. Find: (a) The directions of the thrust force exerted by each gear upon its shaft (b) The speed and direction of shaft c (c) The center distance between shafts Problem 13-16 Dimensions in inches. 5 3 E b 2 x Z 2 F 5 3 D Windows'u Etki B Windows'u etkinleti