Gear 2 Gear 3 Output N3 = 25 teeth Idler N2 = 75 teeth ng: Sear 1) pitch diameter (1 mark) pitch diameter (1 mark) pitch diameter (1 mark) pitch (1 mark) a (1 mark) Histance from gear 1 to gear 3 (2 marks) action length for gear 1 contacting gear 2 (2 marks) ratio of gear 1 and 2 (2 marks) io from gear 1 to gear 3 (1 mark) ree-body diagram of Gear 2, showing the radial and tangential for

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Three 14.5° pressure angle spur gears with a diametral pitch of 8 are meshed. The input pinion on the left is running clockwise at 3101 rpm and transmits 3.2 Hp.
Gear 1 (Pinion)
Input
N1 = 20 teeth
Gear 2
Idler
Gear 3
Output
N3 = 25 teeth
N2 = 75 teeth
Answer the following:
1. Pinion (Gear 1) pitch diameter (1 mark)
2. Gear 2 pitch diameter (1 mark)
3. Gear 3 pitch diameter (1 mark)
4. Circular pitch (1 mark)
5. Addenda (1 mark)
6. Center distance from gear 1 to gear 3 (2 marks)
7. Line of action length for gear 1 contacting gear 2 (2 marks)
8. Contact ratio of gear 1 and 2 (2 marks)
9. Gear ratio from gear 1 to gear 3 (1 mark)
10. Draw a free-body diagram of Gear 2, showing the radial and tangential forces. Calculate these forces. What is the reaction force in the bearing? (3 marks)
Transcribed Image Text:Three 14.5° pressure angle spur gears with a diametral pitch of 8 are meshed. The input pinion on the left is running clockwise at 3101 rpm and transmits 3.2 Hp. Gear 1 (Pinion) Input N1 = 20 teeth Gear 2 Idler Gear 3 Output N3 = 25 teeth N2 = 75 teeth Answer the following: 1. Pinion (Gear 1) pitch diameter (1 mark) 2. Gear 2 pitch diameter (1 mark) 3. Gear 3 pitch diameter (1 mark) 4. Circular pitch (1 mark) 5. Addenda (1 mark) 6. Center distance from gear 1 to gear 3 (2 marks) 7. Line of action length for gear 1 contacting gear 2 (2 marks) 8. Contact ratio of gear 1 and 2 (2 marks) 9. Gear ratio from gear 1 to gear 3 (1 mark) 10. Draw a free-body diagram of Gear 2, showing the radial and tangential forces. Calculate these forces. What is the reaction force in the bearing? (3 marks)
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