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Find the tooth loads and bearing reactions for the shaft shown in figure used to transmit power (70 HP from one point to another). All gears used are of 20° pressure angle with 8 module.  Sketch the top and front views of the shaft with bearings, indicating the loads and reactions. Neglect frictional losses, and weights of gears.

Distances AB = 120 mm, BC = 400mm, CD = 125mm and an Input speed =  300 r.p.m.

                              

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