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[50] The client requires a single step-up spur gearbox to transmit a 10 kW power from a shaft rotating at 1000 rpm, while the output speed must be 1700 rpm. The material for gear and pinion is 817M40 and 655M13, respectively. Use table 6.10 on page 128 to select the suitable gear and pinion. 1.1 Briefly state the problem. (3) 1.2 State the

[50] The client requires a single step-up spur gearbox to transmit a 10 kW power from a shaft rotating at 1000 rpm, while the output speed must be 1700 rpm. The material for gear and pinion is 817M40 and 655M13, respectively. Use table 6.10 on page 128 to select the suitable gear and pinion. 1.1 Briefly state the problem. (3) 1.2 State the

Elements Of Electromagnetics
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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QUESTION 1 GEARS [50]
The client requires a single step-up spur gearbox to transmit a 10 kW power from a shaft rotating
at 1000 rpm, while the output speed must be 1700 rpm. The material for gear and pinion is 817M40
and 655M13, respectively. Use table 6.10 on page 128 to select the suitable gear and pinion.
1.1 Briefly state the problem. (3)
1.2 State the design specification considering the following design factors:
1. Functionality
2. Stress
8)
1.3 State formula and standards relevant to the single step-up spur gearbox design. (4)
1.4 If the pinion has 20 teeth, use the Lewis formula to determine the face width of the
pinion and gear. Then, do one set of calculations and tabulate the answers.
(33)
1.5 Conclusion. (2)

Gears 128 Table 6.10 Spur gears: 3.0 module, heavy duty steel 817M40, 65SM13, face width 35 mm Outer Boss diameter diamoter diameter Bore Outer Boss diameter diameter diameter Bore Part number PCD Teeth (mm) (mm) Part number PCD (mm) (mm) Teeth (mm) (mm) (mm) (mm) SG3-9 SG3-10 SG3-11 30.00 33.00 36.00 36.00 9. 10 3600 39.00 42.00 36 15 SG3-45 SG3-46 SG3-47 SG3-48 SG3-49 SG3-50 100 100 100 100 100 100 45 25 135.00 141.00 138.00 144.00 39 42 42 45 45 45 45 45 45 15 46 25 25 25 25 25 25 25 25 SG3-12 SG3-13 11 12 15 20 47 48 141.00 147.00 144.00 150.00 147.00 153.00 42.00 13 39.00 45.00 20 49 SG3-14 14 42.00 48.00 45.00 51,00 20 20 20 20 20 20 25 25 25 25 25 25 25 25 50 51 52 53 54 55 56 57 $8 59 60 150.00 156.00 153.00 159.00 156.00 162.00 159,00 165.00 162.00 16800 165.00 171.00 168.00 174.00 17100 177.00 17400 180.00 177.00 183.00 180.00 186.00 186.00 192.00 189.00 195.00 192.00 198.00 195.00 201.00 204.00 210.00 210.00 216.00 216.00 222.00 225.00 23100 228.00 234.00 SG3-15 15 SG3-51 SG3-52 SG3-16 SG3-17 SG3-18 100 100 100 100 16 54.00 51.00 57.00 54.00 60,00 57.00 63,00 60.00 66.00 63.00 69.00 66.00 72.00 69,00 75.00 7200 75.00 48.00 17 SG3-53 18 SG3-54 SG3-55 SG3-56 25 25 SG3-19 19 SG3-20 SG3-21 45 60 100 100 127 20 25 25 25 25 21 SG3-22 60 SG3-57 22 60 60 78.00 O SG3-58 SG3-59 SG3-60 127 127 127 SG3-23 23 SG3-24 SG3-25 SG3-26 24 25 26 25 25 25 81,00 60 60 60 60 SG3-62 62 127 84.00 81.00 87.00 90.00 93.00 90.00 96.00 93,00 99.00 96,00 102.00 99.00 105.00 102.00 108.00 105,00 111.00 108.00 114.00 111.00 117.00 78.00 SG3 63 SG3 64 SG3-65 SG3-68 SG3-70 SG3-72 SG3-75 SG3-76 SG3-78 63 127 SG3-27 27 64 127 127 127 150 150 150 25 SG3-28 SG3-29 SG3-30 SG3-31 28 84,00 25 25 25 65 6B 70 72 75 25 29 87.00 60 25 30 30 30 30 30 30 30 30 30 60 31 60 60 25 SG3-32 32 25 25 SG3-33 SG3-34 SG3-35 33 34 60 75 75 75 75 75 75 75 75 76 78 80 82 150 25 35 SG3-36 36 SG3-37 37 234.00 240.00 240.00 246.00 246.00 252.00 252.00 258.00 150 150 150 150 25 SG3-80 SG3-82 SG3-84 SG3-86 SG3-90 SG3-92 SG3-94 SG3-95 SG3 96 25 25 84 SG3-38 38 SG3-39 114.00 120.00 117.00 123.00 120.00 126 00 123.00 129.00 126.00 132.00 129.00 135.00 132.00 138.00 25 25 25 25 25 86 258.00 26400 270.00 276.00 276.00 282.00 28200 288.00 285.00 29100 288.00 294.00 150 150 150 150 150 30 30 39 SG3-40 SG3-41 90 10 92 30 30 30 30 41 94 SG3-42 42 SG3-43 75 95 43 75 SG3-44 44 96 150 100 25 Data adapted lrom HFC Gears Ltd
Transcribed Image Text:Gears 128 Table 6.10 Spur gears: 3.0 module, heavy duty steel 817M40, 65SM13, face width 35 mm Outer Boss diameter diamoter diameter Bore Outer Boss diameter diameter diameter Bore Part number PCD Teeth (mm) (mm) Part number PCD (mm) (mm) Teeth (mm) (mm) (mm) (mm) SG3-9 SG3-10 SG3-11 30.00 33.00 36.00 36.00 9. 10 3600 39.00 42.00 36 15 SG3-45 SG3-46 SG3-47 SG3-48 SG3-49 SG3-50 100 100 100 100 100 100 45 25 135.00 141.00 138.00 144.00 39 42 42 45 45 45 45 45 45 15 46 25 25 25 25 25 25 25 25 SG3-12 SG3-13 11 12 15 20 47 48 141.00 147.00 144.00 150.00 147.00 153.00 42.00 13 39.00 45.00 20 49 SG3-14 14 42.00 48.00 45.00 51,00 20 20 20 20 20 20 25 25 25 25 25 25 25 25 50 51 52 53 54 55 56 57 $8 59 60 150.00 156.00 153.00 159.00 156.00 162.00 159,00 165.00 162.00 16800 165.00 171.00 168.00 174.00 17100 177.00 17400 180.00 177.00 183.00 180.00 186.00 186.00 192.00 189.00 195.00 192.00 198.00 195.00 201.00 204.00 210.00 210.00 216.00 216.00 222.00 225.00 23100 228.00 234.00 SG3-15 15 SG3-51 SG3-52 SG3-16 SG3-17 SG3-18 100 100 100 100 16 54.00 51.00 57.00 54.00 60,00 57.00 63,00 60.00 66.00 63.00 69.00 66.00 72.00 69,00 75.00 7200 75.00 48.00 17 SG3-53 18 SG3-54 SG3-55 SG3-56 25 25 SG3-19 19 SG3-20 SG3-21 45 60 100 100 127 20 25 25 25 25 21 SG3-22 60 SG3-57 22 60 60 78.00 O SG3-58 SG3-59 SG3-60 127 127 127 SG3-23 23 SG3-24 SG3-25 SG3-26 24 25 26 25 25 25 81,00 60 60 60 60 SG3-62 62 127 84.00 81.00 87.00 90.00 93.00 90.00 96.00 93,00 99.00 96,00 102.00 99.00 105.00 102.00 108.00 105,00 111.00 108.00 114.00 111.00 117.00 78.00 SG3 63 SG3 64 SG3-65 SG3-68 SG3-70 SG3-72 SG3-75 SG3-76 SG3-78 63 127 SG3-27 27 64 127 127 127 150 150 150 25 SG3-28 SG3-29 SG3-30 SG3-31 28 84,00 25 25 25 65 6B 70 72 75 25 29 87.00 60 25 30 30 30 30 30 30 30 30 30 60 31 60 60 25 SG3-32 32 25 25 SG3-33 SG3-34 SG3-35 33 34 60 75 75 75 75 75 75 75 75 76 78 80 82 150 25 35 SG3-36 36 SG3-37 37 234.00 240.00 240.00 246.00 246.00 252.00 252.00 258.00 150 150 150 150 25 SG3-80 SG3-82 SG3-84 SG3-86 SG3-90 SG3-92 SG3-94 SG3-95 SG3 96 25 25 84 SG3-38 38 SG3-39 114.00 120.00 117.00 123.00 120.00 126 00 123.00 129.00 126.00 132.00 129.00 135.00 132.00 138.00 25 25 25 25 25 86 258.00 26400 270.00 276.00 276.00 282.00 28200 288.00 285.00 29100 288.00 294.00 150 150 150 150 150 30 30 39 SG3-40 SG3-41 90 10 92 30 30 30 30 41 94 SG3-42 42 SG3-43 75 95 43 75 SG3-44 44 96 150 100 25 Data adapted lrom HFC Gears Ltd
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