In Prob. 8.67, determine the couple that must be applied to shaft AB to rotate the gear

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In Prob. 8.67, determine the couple that must be applied to shaft AB to rotate the gear clockwise. Problem 8.67: The square-threaded worm gear shown has a mean radius of 1.5 in. and a lead of 0.375 in. The larger gear is subjected to a constant clockwise couple of 7.2 kip ⋅in. Knowing that the coefficient of static friction between the two gears is 0.12, determine the couple that must be applied to shaft AB to rotate the large gear counterclockwise. Neglect friction in the bearings at A, B, and C


7.2 kip in. 12 in.

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Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073212227

8th Edition

Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell

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