81. In Figure P8-81, the rack is driven by the pinion that has a rotational speed of 50 rpm. The diametral pitch is 12, Np 30, and the length of the rack is 7.00 ft. Find the following: (a) The pitch diameter of the pinion (b) The distance from the pitch line to the back of the rack (c) The center distance. (d) The linear velocity of the rack (e) The time required to move the rack 7.00 ft. (f) The number of revolutions of the pinion as the rack moves 7.00 ft. Pinion, Np = 30, np = 50 rpm CW Diametral Pitch = 12 Min FIGURE P8-81 Rack and pinion for Problem 8-81

81. In Figure P8-81, the rack is driven by the pinion that has a rotational speed of 50 rpm. The diametral pitch is 12, Np 30, and the length of the rack is 7.00 ft. Find the following: (a) The pitch diameter of the pinion (b) The distance from the pitch line to the back of the rack (c) The center distance. (d) The linear velocity of the rack (e) The time required to move the rack 7.00 ft. (f) The number of revolutions of the pinion as the rack moves 7.00 ft. Pinion, Np = 30, np = 50 rpm CW Diametral Pitch = 12 Min FIGURE P8-81 Rack and pinion for Problem 8-81

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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