In the planetary gear system shown, the radius of the central gear A is a = 18 mm, the radius of each planetary gear is b, and the radius of the outer gear E is (a + 2b). A clockwise couple of magnitude MA = 10 N · m is applied to the central gear A and a counterclockwise couple of magnitude MS = 50 N · m is applied to the spider BCD. If the system is to be in equilibrium, determine

(a) The required radius b of the planetary gears,

(b) The magnitude ME of the couple that must be applied to the outer gear E.

Transcribed Image Text:

B E