A 12-tooth external spur gear A, rotating clockwise, drives a gear B whose diametral pitch is 4. The ratio of the speed of gear A to gear B is 2 to 1. The tooth proportions are standard 14-12° brown and sharpe. (1) Placing the center of gear A on a vertical line above the center of B on the same vertical line show and give the diameters of the pitch circles, addendum circles, and dedendum circles. (2) Sketch in roughly enough of a tooth on each gear in contact at the pitch point and indicate the face of the tooth, the flank of the tooth and the pitch point.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A 12-tooth external spur gear A, rotating clockwise, drives a gear B whose diametral pitch is 4.
The ratio of the speed of gear A to gear B is 2 to 1. The tooth proportions are standard 14-¹2°
brown and sharpe. (1) Placing the center of gear A on a vertical line above the center of B on the
same vertical line show and give the diameters of the pitch circles, addendum circles, and
dedendum circles. (2) Sketch in roughly enough of a tooth on each gear in contact at the pitch
point and indicate the face of the tooth, the flank of the tooth and the pitch point.
(Please do indicate the computations, most especially the drawings. Thank you!)
Transcribed Image Text:A 12-tooth external spur gear A, rotating clockwise, drives a gear B whose diametral pitch is 4. The ratio of the speed of gear A to gear B is 2 to 1. The tooth proportions are standard 14-¹2° brown and sharpe. (1) Placing the center of gear A on a vertical line above the center of B on the same vertical line show and give the diameters of the pitch circles, addendum circles, and dedendum circles. (2) Sketch in roughly enough of a tooth on each gear in contact at the pitch point and indicate the face of the tooth, the flank of the tooth and the pitch point. (Please do indicate the computations, most especially the drawings. Thank you!)
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